Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "debugger.h" |
| 18 | |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 19 | #include <sys/uio.h> |
| 20 | |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 21 | #include <set> |
| 22 | |
Ian Rogers | 166db04 | 2013-07-26 12:05:57 -0700 | [diff] [blame] | 23 | #include "arch/context.h" |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 24 | #include "class_linker.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 25 | #include "class_linker-inl.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 26 | #include "dex_file-inl.h" |
Ian Rogers | 776ac1f | 2012-04-13 23:36:36 -0700 | [diff] [blame] | 27 | #include "dex_instruction.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 28 | #include "gc/accounting/card_table-inl.h" |
| 29 | #include "gc/space/large_object_space.h" |
| 30 | #include "gc/space/space-inl.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 31 | #include "handle_scope.h" |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 32 | #include "jdwp/object_registry.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 33 | #include "mirror/art_field-inl.h" |
| 34 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 35 | #include "mirror/class.h" |
| 36 | #include "mirror/class-inl.h" |
| 37 | #include "mirror/class_loader.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 38 | #include "mirror/object-inl.h" |
| 39 | #include "mirror/object_array-inl.h" |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 40 | #include "mirror/string-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 41 | #include "mirror/throwable.h" |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 42 | #include "quick/inline_method_analyser.h" |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 43 | #include "reflection.h" |
Elliott Hughes | a0e1806 | 2012-04-13 15:59:59 -0700 | [diff] [blame] | 44 | #include "safe_map.h" |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 45 | #include "scoped_thread_state_change.h" |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 46 | #include "ScopedLocalRef.h" |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 47 | #include "ScopedPrimitiveArray.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 48 | #include "handle_scope-inl.h" |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 49 | #include "thread_list.h" |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 50 | #include "throw_location.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 51 | #include "utf.h" |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 52 | #include "verifier/method_verifier-inl.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 53 | #include "well_known_classes.h" |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 54 | |
Brian Carlstrom | 3d92d52 | 2013-07-12 09:03:08 -0700 | [diff] [blame] | 55 | #ifdef HAVE_ANDROID_OS |
| 56 | #include "cutils/properties.h" |
| 57 | #endif |
| 58 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 59 | namespace art { |
| 60 | |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 61 | static const size_t kMaxAllocRecordStackDepth = 16; // Max 255. |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 62 | static const size_t kDefaultNumAllocRecords = 64*1024; // Must be a power of 2. 2BE can hold 64k-1. |
| 63 | |
| 64 | // Limit alloc_record_count to the 2BE value that is the limit of the current protocol. |
| 65 | static uint16_t CappedAllocRecordCount(size_t alloc_record_count) { |
| 66 | if (alloc_record_count > 0xffff) { |
| 67 | return 0xffff; |
| 68 | } |
| 69 | return alloc_record_count; |
| 70 | } |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 71 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 72 | class AllocRecordStackTraceElement { |
| 73 | public: |
| 74 | AllocRecordStackTraceElement() : method_(nullptr), dex_pc_(0) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 75 | } |
| 76 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 77 | int32_t LineNumber() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 78 | mirror::ArtMethod* method = Method(); |
| 79 | DCHECK(method != nullptr); |
| 80 | return method->GetLineNumFromDexPC(DexPc()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 81 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 82 | |
| 83 | mirror::ArtMethod* Method() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 84 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 85 | return soa.DecodeMethod(method_); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | void SetMethod(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 89 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 90 | method_ = soa.EncodeMethod(m); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 91 | } |
| 92 | |
| 93 | uint32_t DexPc() const { |
| 94 | return dex_pc_; |
| 95 | } |
| 96 | |
| 97 | void SetDexPc(uint32_t pc) { |
| 98 | dex_pc_ = pc; |
| 99 | } |
| 100 | |
| 101 | private: |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 102 | jmethodID method_; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 103 | uint32_t dex_pc_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 104 | }; |
| 105 | |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 106 | jobject Dbg::TypeCache::Add(mirror::Class* t) { |
| 107 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 108 | int32_t hash_code = t->IdentityHashCode(); |
| 109 | auto range = objects_.equal_range(hash_code); |
| 110 | for (auto it = range.first; it != range.second; ++it) { |
| 111 | if (soa.Decode<mirror::Class*>(it->second) == t) { |
| 112 | // Found a matching weak global, return it. |
| 113 | return it->second; |
| 114 | } |
| 115 | } |
| 116 | JNIEnv* env = soa.Env(); |
| 117 | const jobject local_ref = soa.AddLocalReference<jobject>(t); |
| 118 | const jobject weak_global = env->NewWeakGlobalRef(local_ref); |
| 119 | env->DeleteLocalRef(local_ref); |
| 120 | objects_.insert(std::make_pair(hash_code, weak_global)); |
| 121 | return weak_global; |
| 122 | } |
| 123 | |
| 124 | void Dbg::TypeCache::Clear() { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 125 | JavaVMExt* vm = Runtime::Current()->GetJavaVM(); |
| 126 | Thread* self = Thread::Current(); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 127 | for (const auto& p : objects_) { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 128 | vm->DeleteWeakGlobalRef(self, p.second); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 129 | } |
| 130 | objects_.clear(); |
| 131 | } |
| 132 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 133 | class AllocRecord { |
| 134 | public: |
| 135 | AllocRecord() : type_(nullptr), byte_count_(0), thin_lock_id_(0) {} |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 136 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 137 | mirror::Class* Type() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 138 | return down_cast<mirror::Class*>(Thread::Current()->DecodeJObject(type_)); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 139 | } |
| 140 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 141 | void SetType(mirror::Class* t) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, |
| 142 | Locks::alloc_tracker_lock_) { |
| 143 | type_ = Dbg::type_cache_.Add(t); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | size_t GetDepth() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 147 | size_t depth = 0; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 148 | while (depth < kMaxAllocRecordStackDepth && stack_[depth].Method() != nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 149 | ++depth; |
| 150 | } |
| 151 | return depth; |
| 152 | } |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 153 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 154 | size_t ByteCount() const { |
| 155 | return byte_count_; |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 156 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 157 | |
| 158 | void SetByteCount(size_t count) { |
| 159 | byte_count_ = count; |
| 160 | } |
| 161 | |
| 162 | uint16_t ThinLockId() const { |
| 163 | return thin_lock_id_; |
| 164 | } |
| 165 | |
| 166 | void SetThinLockId(uint16_t id) { |
| 167 | thin_lock_id_ = id; |
| 168 | } |
| 169 | |
| 170 | AllocRecordStackTraceElement* StackElement(size_t index) { |
| 171 | DCHECK_LT(index, kMaxAllocRecordStackDepth); |
| 172 | return &stack_[index]; |
| 173 | } |
| 174 | |
| 175 | private: |
| 176 | jobject type_; // This is a weak global. |
| 177 | size_t byte_count_; |
| 178 | uint16_t thin_lock_id_; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 179 | AllocRecordStackTraceElement stack_[kMaxAllocRecordStackDepth]; // Unused entries have nullptr method. |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 180 | }; |
| 181 | |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 182 | class Breakpoint { |
| 183 | public: |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 184 | Breakpoint(mirror::ArtMethod* method, uint32_t dex_pc, |
| 185 | DeoptimizationRequest::Kind deoptimization_kind) |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 186 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 187 | : method_(nullptr), dex_pc_(dex_pc), deoptimization_kind_(deoptimization_kind) { |
| 188 | CHECK(deoptimization_kind_ == DeoptimizationRequest::kNothing || |
| 189 | deoptimization_kind_ == DeoptimizationRequest::kSelectiveDeoptimization || |
| 190 | deoptimization_kind_ == DeoptimizationRequest::kFullDeoptimization); |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 191 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 192 | method_ = soa.EncodeMethod(method); |
| 193 | } |
| 194 | |
| 195 | Breakpoint(const Breakpoint& other) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
| 196 | : method_(nullptr), dex_pc_(other.dex_pc_), |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 197 | deoptimization_kind_(other.deoptimization_kind_) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 198 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 199 | method_ = soa.EncodeMethod(other.Method()); |
| 200 | } |
| 201 | |
| 202 | mirror::ArtMethod* Method() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 203 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 204 | return soa.DecodeMethod(method_); |
| 205 | } |
| 206 | |
| 207 | uint32_t DexPc() const { |
| 208 | return dex_pc_; |
| 209 | } |
| 210 | |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 211 | DeoptimizationRequest::Kind GetDeoptimizationKind() const { |
| 212 | return deoptimization_kind_; |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | private: |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 216 | // The location of this breakpoint. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 217 | jmethodID method_; |
| 218 | uint32_t dex_pc_; |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 219 | |
| 220 | // Indicates whether breakpoint needs full deoptimization or selective deoptimization. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 221 | DeoptimizationRequest::Kind deoptimization_kind_; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 222 | }; |
| 223 | |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 224 | static std::ostream& operator<<(std::ostream& os, const Breakpoint& rhs) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 225 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 226 | os << StringPrintf("Breakpoint[%s @%#x]", PrettyMethod(rhs.Method()).c_str(), rhs.DexPc()); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 227 | return os; |
| 228 | } |
| 229 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 230 | class DebugInstrumentationListener FINAL : public instrumentation::InstrumentationListener { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 231 | public: |
| 232 | DebugInstrumentationListener() {} |
| 233 | virtual ~DebugInstrumentationListener() {} |
| 234 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 235 | void MethodEntered(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 236 | uint32_t dex_pc ATTRIBUTE_UNUSED) |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 237 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 238 | if (method->IsNative()) { |
| 239 | // TODO: post location events is a suspension point and native method entry stubs aren't. |
| 240 | return; |
| 241 | } |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 242 | Dbg::UpdateDebugger(thread, this_object, method, 0, Dbg::kMethodEntry, nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 243 | } |
| 244 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 245 | void MethodExited(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 246 | uint32_t dex_pc, const JValue& return_value) |
| 247 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 248 | if (method->IsNative()) { |
| 249 | // TODO: post location events is a suspension point and native method entry stubs aren't. |
| 250 | return; |
| 251 | } |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 252 | Dbg::UpdateDebugger(thread, this_object, method, dex_pc, Dbg::kMethodExit, &return_value); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 253 | } |
| 254 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 255 | void MethodUnwind(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 256 | uint32_t dex_pc) |
| 257 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 258 | // We're not recorded to listen to this kind of event, so complain. |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 259 | UNUSED(thread, this_object, method, dex_pc); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 260 | LOG(ERROR) << "Unexpected method unwind event in debugger " << PrettyMethod(method) |
Sebastien Hertz | 51db44a | 2013-11-19 10:00:29 +0100 | [diff] [blame] | 261 | << " " << dex_pc; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 262 | } |
| 263 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 264 | void DexPcMoved(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 265 | uint32_t new_dex_pc) |
| 266 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 267 | Dbg::UpdateDebugger(thread, this_object, method, new_dex_pc, 0, nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 268 | } |
| 269 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 270 | void FieldRead(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 271 | uint32_t dex_pc, mirror::ArtField* field) |
| 272 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 273 | UNUSED(thread); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 274 | Dbg::PostFieldAccessEvent(method, dex_pc, this_object, field); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 275 | } |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 276 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 277 | void FieldWritten(Thread* thread ATTRIBUTE_UNUSED, mirror::Object* this_object, |
| 278 | mirror::ArtMethod* method, uint32_t dex_pc, mirror::ArtField* field, |
| 279 | const JValue& field_value) |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 280 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 281 | Dbg::PostFieldModificationEvent(method, dex_pc, this_object, field, &field_value); |
| 282 | } |
| 283 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 284 | void ExceptionCaught(Thread* thread ATTRIBUTE_UNUSED, const ThrowLocation& throw_location, |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 285 | mirror::ArtMethod* catch_method, uint32_t catch_dex_pc, |
| 286 | mirror::Throwable* exception_object) |
| 287 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 288 | Dbg::PostException(throw_location, catch_method, catch_dex_pc, exception_object); |
| 289 | } |
| 290 | |
| 291 | private: |
| 292 | DISALLOW_COPY_AND_ASSIGN(DebugInstrumentationListener); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 293 | } gDebugInstrumentationListener; |
| 294 | |
Elliott Hughes | 4ffd313 | 2011-10-24 12:06:42 -0700 | [diff] [blame] | 295 | // JDWP is allowed unless the Zygote forbids it. |
| 296 | static bool gJdwpAllowed = true; |
| 297 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 298 | // Was there a -Xrunjdwp or -agentlib:jdwp= argument on the command line? |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 299 | static bool gJdwpConfigured = false; |
| 300 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 301 | // Broken-down JDWP options. (Only valid if IsJdwpConfigured() is true.) |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 302 | static JDWP::JdwpOptions gJdwpOptions; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 303 | |
| 304 | // Runtime JDWP state. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 305 | static JDWP::JdwpState* gJdwpState = nullptr; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 306 | static bool gDebuggerConnected; // debugger or DDMS is connected. |
| 307 | static bool gDebuggerActive; // debugger is making requests. |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 308 | static bool gDisposed; // debugger called VirtualMachine.Dispose, so we should drop the connection. |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 309 | |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 310 | static bool gDdmThreadNotification = false; |
| 311 | |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 312 | // DDMS GC-related settings. |
| 313 | static Dbg::HpifWhen gDdmHpifWhen = Dbg::HPIF_WHEN_NEVER; |
| 314 | static Dbg::HpsgWhen gDdmHpsgWhen = Dbg::HPSG_WHEN_NEVER; |
| 315 | static Dbg::HpsgWhat gDdmHpsgWhat; |
| 316 | static Dbg::HpsgWhen gDdmNhsgWhen = Dbg::HPSG_WHEN_NEVER; |
| 317 | static Dbg::HpsgWhat gDdmNhsgWhat; |
| 318 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 319 | ObjectRegistry* Dbg::gRegistry = nullptr; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 320 | |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 321 | // Recent allocation tracking. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 322 | AllocRecord* Dbg::recent_allocation_records_ = nullptr; // TODO: CircularBuffer<AllocRecord> |
| 323 | size_t Dbg::alloc_record_max_ = 0; |
| 324 | size_t Dbg::alloc_record_head_ = 0; |
| 325 | size_t Dbg::alloc_record_count_ = 0; |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 326 | Dbg::TypeCache Dbg::type_cache_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 327 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 328 | // Deoptimization support. |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 329 | std::vector<DeoptimizationRequest> Dbg::deoptimization_requests_; |
| 330 | size_t Dbg::full_deoptimization_event_count_ = 0; |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 331 | size_t Dbg::delayed_full_undeoptimization_count_ = 0; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 332 | |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 333 | // Instrumentation event reference counters. |
| 334 | size_t Dbg::dex_pc_change_event_ref_count_ = 0; |
| 335 | size_t Dbg::method_enter_event_ref_count_ = 0; |
| 336 | size_t Dbg::method_exit_event_ref_count_ = 0; |
| 337 | size_t Dbg::field_read_event_ref_count_ = 0; |
| 338 | size_t Dbg::field_write_event_ref_count_ = 0; |
| 339 | size_t Dbg::exception_catch_event_ref_count_ = 0; |
| 340 | uint32_t Dbg::instrumentation_events_ = 0; |
| 341 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 342 | // Breakpoints. |
jeffhao | 09bfc6a | 2012-12-11 18:11:43 -0800 | [diff] [blame] | 343 | static std::vector<Breakpoint> gBreakpoints GUARDED_BY(Locks::breakpoint_lock_); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 344 | |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 345 | void DebugInvokeReq::VisitRoots(RootCallback* callback, void* arg, uint32_t tid, |
| 346 | RootType root_type) { |
| 347 | if (receiver != nullptr) { |
| 348 | callback(&receiver, arg, tid, root_type); |
| 349 | } |
| 350 | if (thread != nullptr) { |
| 351 | callback(&thread, arg, tid, root_type); |
| 352 | } |
| 353 | if (klass != nullptr) { |
| 354 | callback(reinterpret_cast<mirror::Object**>(&klass), arg, tid, root_type); |
| 355 | } |
| 356 | if (method != nullptr) { |
| 357 | callback(reinterpret_cast<mirror::Object**>(&method), arg, tid, root_type); |
| 358 | } |
| 359 | } |
| 360 | |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 361 | void DebugInvokeReq::Clear() { |
| 362 | invoke_needed = false; |
| 363 | receiver = nullptr; |
| 364 | thread = nullptr; |
| 365 | klass = nullptr; |
| 366 | method = nullptr; |
| 367 | } |
| 368 | |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 369 | void SingleStepControl::VisitRoots(RootCallback* callback, void* arg, uint32_t tid, |
| 370 | RootType root_type) { |
| 371 | if (method != nullptr) { |
| 372 | callback(reinterpret_cast<mirror::Object**>(&method), arg, tid, root_type); |
| 373 | } |
| 374 | } |
| 375 | |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 376 | bool SingleStepControl::ContainsDexPc(uint32_t dex_pc) const { |
| 377 | return dex_pcs.find(dex_pc) == dex_pcs.end(); |
| 378 | } |
| 379 | |
| 380 | void SingleStepControl::Clear() { |
| 381 | is_active = false; |
| 382 | method = nullptr; |
| 383 | dex_pcs.clear(); |
| 384 | } |
| 385 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 386 | static bool IsBreakpoint(const mirror::ArtMethod* m, uint32_t dex_pc) |
jeffhao | 09bfc6a | 2012-12-11 18:11:43 -0800 | [diff] [blame] | 387 | LOCKS_EXCLUDED(Locks::breakpoint_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 388 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 389 | ReaderMutexLock mu(Thread::Current(), *Locks::breakpoint_lock_); |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 390 | for (size_t i = 0, e = gBreakpoints.size(); i < e; ++i) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 391 | if (gBreakpoints[i].DexPc() == dex_pc && gBreakpoints[i].Method() == m) { |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 392 | VLOG(jdwp) << "Hit breakpoint #" << i << ": " << gBreakpoints[i]; |
| 393 | return true; |
| 394 | } |
| 395 | } |
| 396 | return false; |
| 397 | } |
| 398 | |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 399 | static bool IsSuspendedForDebugger(ScopedObjectAccessUnchecked& soa, Thread* thread) |
| 400 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) { |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 401 | MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); |
| 402 | // A thread may be suspended for GC; in this code, we really want to know whether |
| 403 | // there's a debugger suspension active. |
| 404 | return thread->IsSuspended() && thread->GetDebugSuspendCount() > 0; |
| 405 | } |
| 406 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 407 | static mirror::Array* DecodeNonNullArray(JDWP::RefTypeId id, JDWP::JdwpError* error) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 408 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 409 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(id, error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 410 | if (o == nullptr) { |
| 411 | *error = JDWP::ERR_INVALID_OBJECT; |
| 412 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 413 | } |
| 414 | if (!o->IsArrayInstance()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 415 | *error = JDWP::ERR_INVALID_ARRAY; |
| 416 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 417 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 418 | *error = JDWP::ERR_NONE; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 419 | return o->AsArray(); |
| 420 | } |
| 421 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 422 | static mirror::Class* DecodeClass(JDWP::RefTypeId id, JDWP::JdwpError* error) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 423 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 424 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(id, error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 425 | if (o == nullptr) { |
| 426 | *error = JDWP::ERR_INVALID_OBJECT; |
| 427 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 428 | } |
| 429 | if (!o->IsClass()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 430 | *error = JDWP::ERR_INVALID_CLASS; |
| 431 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 432 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 433 | *error = JDWP::ERR_NONE; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 434 | return o->AsClass(); |
| 435 | } |
| 436 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 437 | static Thread* DecodeThread(ScopedObjectAccessUnchecked& soa, JDWP::ObjectId thread_id, |
| 438 | JDWP::JdwpError* error) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 439 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 440 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 441 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 442 | mirror::Object* thread_peer = Dbg::GetObjectRegistry()->Get<mirror::Object*>(thread_id, error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 443 | if (thread_peer == nullptr) { |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 444 | // This isn't even an object. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 445 | *error = JDWP::ERR_INVALID_OBJECT; |
| 446 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 447 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 448 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 449 | mirror::Class* java_lang_Thread = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 450 | if (!java_lang_Thread->IsAssignableFrom(thread_peer->GetClass())) { |
| 451 | // This isn't a thread. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 452 | *error = JDWP::ERR_INVALID_THREAD; |
| 453 | return nullptr; |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 454 | } |
| 455 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 456 | Thread* thread = Thread::FromManagedThread(soa, thread_peer); |
| 457 | // If thread is null then this a java.lang.Thread without a Thread*. Must be a un-started or a |
| 458 | // zombie. |
| 459 | *error = (thread == nullptr) ? JDWP::ERR_THREAD_NOT_ALIVE : JDWP::ERR_NONE; |
| 460 | return thread; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 461 | } |
| 462 | |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 463 | static JDWP::JdwpTag BasicTagFromDescriptor(const char* descriptor) { |
| 464 | // JDWP deliberately uses the descriptor characters' ASCII values for its enum. |
| 465 | // Note that by "basic" we mean that we don't get more specific than JT_OBJECT. |
| 466 | return static_cast<JDWP::JdwpTag>(descriptor[0]); |
| 467 | } |
| 468 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 469 | static JDWP::JdwpTag BasicTagFromClass(mirror::Class* klass) |
| 470 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 471 | std::string temp; |
| 472 | const char* descriptor = klass->GetDescriptor(&temp); |
| 473 | return BasicTagFromDescriptor(descriptor); |
| 474 | } |
| 475 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 476 | static JDWP::JdwpTag TagFromClass(const ScopedObjectAccessUnchecked& soa, mirror::Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 477 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 478 | CHECK(c != nullptr); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 479 | if (c->IsArrayClass()) { |
| 480 | return JDWP::JT_ARRAY; |
| 481 | } |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 482 | if (c->IsStringClass()) { |
| 483 | return JDWP::JT_STRING; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 484 | } |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 485 | if (c->IsClassClass()) { |
| 486 | return JDWP::JT_CLASS_OBJECT; |
| 487 | } |
| 488 | { |
| 489 | mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread); |
| 490 | if (thread_class->IsAssignableFrom(c)) { |
| 491 | return JDWP::JT_THREAD; |
| 492 | } |
| 493 | } |
| 494 | { |
| 495 | mirror::Class* thread_group_class = |
| 496 | soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ThreadGroup); |
| 497 | if (thread_group_class->IsAssignableFrom(c)) { |
| 498 | return JDWP::JT_THREAD_GROUP; |
| 499 | } |
| 500 | } |
| 501 | { |
| 502 | mirror::Class* class_loader_class = |
| 503 | soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader); |
| 504 | if (class_loader_class->IsAssignableFrom(c)) { |
| 505 | return JDWP::JT_CLASS_LOADER; |
| 506 | } |
| 507 | } |
| 508 | return JDWP::JT_OBJECT; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | /* |
| 512 | * Objects declared to hold Object might actually hold a more specific |
| 513 | * type. The debugger may take a special interest in these (e.g. it |
| 514 | * wants to display the contents of Strings), so we want to return an |
| 515 | * appropriate tag. |
| 516 | * |
| 517 | * Null objects are tagged JT_OBJECT. |
| 518 | */ |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 519 | JDWP::JdwpTag Dbg::TagFromObject(const ScopedObjectAccessUnchecked& soa, mirror::Object* o) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 520 | return (o == nullptr) ? JDWP::JT_OBJECT : TagFromClass(soa, o->GetClass()); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 521 | } |
| 522 | |
| 523 | static bool IsPrimitiveTag(JDWP::JdwpTag tag) { |
| 524 | switch (tag) { |
| 525 | case JDWP::JT_BOOLEAN: |
| 526 | case JDWP::JT_BYTE: |
| 527 | case JDWP::JT_CHAR: |
| 528 | case JDWP::JT_FLOAT: |
| 529 | case JDWP::JT_DOUBLE: |
| 530 | case JDWP::JT_INT: |
| 531 | case JDWP::JT_LONG: |
| 532 | case JDWP::JT_SHORT: |
| 533 | case JDWP::JT_VOID: |
| 534 | return true; |
| 535 | default: |
| 536 | return false; |
| 537 | } |
| 538 | } |
| 539 | |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 540 | /* |
| 541 | * Handle one of the JDWP name/value pairs. |
| 542 | * |
| 543 | * JDWP options are: |
| 544 | * help: if specified, show help message and bail |
| 545 | * transport: may be dt_socket or dt_shmem |
| 546 | * address: for dt_socket, "host:port", or just "port" when listening |
| 547 | * server: if "y", wait for debugger to attach; if "n", attach to debugger |
| 548 | * timeout: how long to wait for debugger to connect / listen |
| 549 | * |
| 550 | * Useful with server=n (these aren't supported yet): |
| 551 | * onthrow=<exception-name>: connect to debugger when exception thrown |
| 552 | * onuncaught=y|n: connect to debugger when uncaught exception thrown |
| 553 | * launch=<command-line>: launch the debugger itself |
| 554 | * |
| 555 | * The "transport" option is required, as is "address" if server=n. |
| 556 | */ |
| 557 | static bool ParseJdwpOption(const std::string& name, const std::string& value) { |
| 558 | if (name == "transport") { |
| 559 | if (value == "dt_socket") { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 560 | gJdwpOptions.transport = JDWP::kJdwpTransportSocket; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 561 | } else if (value == "dt_android_adb") { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 562 | gJdwpOptions.transport = JDWP::kJdwpTransportAndroidAdb; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 563 | } else { |
| 564 | LOG(ERROR) << "JDWP transport not supported: " << value; |
| 565 | return false; |
| 566 | } |
| 567 | } else if (name == "server") { |
| 568 | if (value == "n") { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 569 | gJdwpOptions.server = false; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 570 | } else if (value == "y") { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 571 | gJdwpOptions.server = true; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 572 | } else { |
| 573 | LOG(ERROR) << "JDWP option 'server' must be 'y' or 'n'"; |
| 574 | return false; |
| 575 | } |
| 576 | } else if (name == "suspend") { |
| 577 | if (value == "n") { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 578 | gJdwpOptions.suspend = false; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 579 | } else if (value == "y") { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 580 | gJdwpOptions.suspend = true; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 581 | } else { |
| 582 | LOG(ERROR) << "JDWP option 'suspend' must be 'y' or 'n'"; |
| 583 | return false; |
| 584 | } |
| 585 | } else if (name == "address") { |
| 586 | /* this is either <port> or <host>:<port> */ |
| 587 | std::string port_string; |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 588 | gJdwpOptions.host.clear(); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 589 | std::string::size_type colon = value.find(':'); |
| 590 | if (colon != std::string::npos) { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 591 | gJdwpOptions.host = value.substr(0, colon); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 592 | port_string = value.substr(colon + 1); |
| 593 | } else { |
| 594 | port_string = value; |
| 595 | } |
| 596 | if (port_string.empty()) { |
| 597 | LOG(ERROR) << "JDWP address missing port: " << value; |
| 598 | return false; |
| 599 | } |
| 600 | char* end; |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 601 | uint64_t port = strtoul(port_string.c_str(), &end, 10); |
| 602 | if (*end != '\0' || port > 0xffff) { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 603 | LOG(ERROR) << "JDWP address has junk in port field: " << value; |
| 604 | return false; |
| 605 | } |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 606 | gJdwpOptions.port = port; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 607 | } else if (name == "launch" || name == "onthrow" || name == "oncaught" || name == "timeout") { |
| 608 | /* valid but unsupported */ |
| 609 | LOG(INFO) << "Ignoring JDWP option '" << name << "'='" << value << "'"; |
| 610 | } else { |
| 611 | LOG(INFO) << "Ignoring unrecognized JDWP option '" << name << "'='" << value << "'"; |
| 612 | } |
| 613 | |
| 614 | return true; |
| 615 | } |
| 616 | |
| 617 | /* |
| 618 | * Parse the latter half of a -Xrunjdwp/-agentlib:jdwp= string, e.g.: |
| 619 | * "transport=dt_socket,address=8000,server=y,suspend=n" |
| 620 | */ |
| 621 | bool Dbg::ParseJdwpOptions(const std::string& options) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 622 | VLOG(jdwp) << "ParseJdwpOptions: " << options; |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 623 | |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 624 | std::vector<std::string> pairs; |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 625 | Split(options, ',', &pairs); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 626 | |
| 627 | for (size_t i = 0; i < pairs.size(); ++i) { |
| 628 | std::string::size_type equals = pairs[i].find('='); |
| 629 | if (equals == std::string::npos) { |
| 630 | LOG(ERROR) << "Can't parse JDWP option '" << pairs[i] << "' in '" << options << "'"; |
| 631 | return false; |
| 632 | } |
| 633 | ParseJdwpOption(pairs[i].substr(0, equals), pairs[i].substr(equals + 1)); |
| 634 | } |
| 635 | |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 636 | if (gJdwpOptions.transport == JDWP::kJdwpTransportUnknown) { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 637 | LOG(ERROR) << "Must specify JDWP transport: " << options; |
| 638 | } |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 639 | if (!gJdwpOptions.server && (gJdwpOptions.host.empty() || gJdwpOptions.port == 0)) { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 640 | LOG(ERROR) << "Must specify JDWP host and port when server=n: " << options; |
| 641 | return false; |
| 642 | } |
| 643 | |
| 644 | gJdwpConfigured = true; |
| 645 | return true; |
| 646 | } |
| 647 | |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 648 | void Dbg::StartJdwp() { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 649 | if (!gJdwpAllowed || !IsJdwpConfigured()) { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 650 | // No JDWP for you! |
| 651 | return; |
| 652 | } |
| 653 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 654 | CHECK(gRegistry == nullptr); |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 655 | gRegistry = new ObjectRegistry; |
| 656 | |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 657 | // Init JDWP if the debugger is enabled. This may connect out to a |
| 658 | // debugger, passively listen for a debugger, or block waiting for a |
| 659 | // debugger. |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 660 | gJdwpState = JDWP::JdwpState::Create(&gJdwpOptions); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 661 | if (gJdwpState == nullptr) { |
Elliott Hughes | f8a2df7 | 2011-12-01 12:19:54 -0800 | [diff] [blame] | 662 | // We probably failed because some other process has the port already, which means that |
| 663 | // if we don't abort the user is likely to think they're talking to us when they're actually |
| 664 | // talking to that other process. |
Elliott Hughes | 3d30d9b | 2011-12-07 17:35:48 -0800 | [diff] [blame] | 665 | LOG(FATAL) << "Debugger thread failed to initialize"; |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 666 | } |
| 667 | |
| 668 | // If a debugger has already attached, send the "welcome" message. |
| 669 | // This may cause us to suspend all threads. |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 670 | if (gJdwpState->IsActive()) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 671 | ScopedObjectAccess soa(Thread::Current()); |
Sebastien Hertz | 7d95565 | 2014-10-22 10:57:10 +0200 | [diff] [blame] | 672 | gJdwpState->PostVMStart(); |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 673 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 674 | } |
| 675 | |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 676 | void Dbg::StopJdwp() { |
Sebastien Hertz | c6345ef | 2014-08-18 19:26:39 +0200 | [diff] [blame] | 677 | // Post VM_DEATH event before the JDWP connection is closed (either by the JDWP thread or the |
| 678 | // destruction of gJdwpState). |
| 679 | if (gJdwpState != nullptr && gJdwpState->IsActive()) { |
| 680 | gJdwpState->PostVMDeath(); |
| 681 | } |
Sebastien Hertz | 0376e6b | 2014-02-06 18:12:59 +0100 | [diff] [blame] | 682 | // Prevent the JDWP thread from processing JDWP incoming packets after we close the connection. |
| 683 | Disposed(); |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 684 | delete gJdwpState; |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 685 | gJdwpState = nullptr; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 686 | delete gRegistry; |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 687 | gRegistry = nullptr; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 688 | } |
| 689 | |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 690 | void Dbg::GcDidFinish() { |
| 691 | if (gDdmHpifWhen != HPIF_WHEN_NEVER) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 692 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 4d466a8 | 2014-05-08 19:05:29 -0700 | [diff] [blame] | 693 | VLOG(jdwp) << "Sending heap info to DDM"; |
Elliott Hughes | 7162ad9 | 2011-10-27 14:08:42 -0700 | [diff] [blame] | 694 | DdmSendHeapInfo(gDdmHpifWhen); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 695 | } |
| 696 | if (gDdmHpsgWhen != HPSG_WHEN_NEVER) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 697 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 4d466a8 | 2014-05-08 19:05:29 -0700 | [diff] [blame] | 698 | VLOG(jdwp) << "Dumping heap to DDM"; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 699 | DdmSendHeapSegments(false); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 700 | } |
| 701 | if (gDdmNhsgWhen != HPSG_WHEN_NEVER) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 702 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 4d466a8 | 2014-05-08 19:05:29 -0700 | [diff] [blame] | 703 | VLOG(jdwp) << "Dumping native heap to DDM"; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 704 | DdmSendHeapSegments(true); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 705 | } |
| 706 | } |
| 707 | |
Elliott Hughes | 4ffd313 | 2011-10-24 12:06:42 -0700 | [diff] [blame] | 708 | void Dbg::SetJdwpAllowed(bool allowed) { |
| 709 | gJdwpAllowed = allowed; |
| 710 | } |
| 711 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 712 | DebugInvokeReq* Dbg::GetInvokeReq() { |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 713 | return Thread::Current()->GetInvokeReq(); |
| 714 | } |
| 715 | |
| 716 | Thread* Dbg::GetDebugThread() { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 717 | return (gJdwpState != nullptr) ? gJdwpState->GetDebugThread() : nullptr; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | void Dbg::ClearWaitForEventThread() { |
| 721 | gJdwpState->ClearWaitForEventThread(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | void Dbg::Connected() { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 725 | CHECK(!gDebuggerConnected); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 726 | VLOG(jdwp) << "JDWP has attached"; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 727 | gDebuggerConnected = true; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 728 | gDisposed = false; |
| 729 | } |
| 730 | |
| 731 | void Dbg::Disposed() { |
| 732 | gDisposed = true; |
| 733 | } |
| 734 | |
| 735 | bool Dbg::IsDisposed() { |
| 736 | return gDisposed; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 737 | } |
| 738 | |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 739 | bool Dbg::RequiresDeoptimization() { |
| 740 | // We don't need deoptimization if everything runs with interpreter after |
| 741 | // enabling -Xint mode. |
| 742 | return !Runtime::Current()->GetInstrumentation()->IsForcedInterpretOnly(); |
| 743 | } |
| 744 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 745 | void Dbg::GoActive() { |
| 746 | // Enable all debugging features, including scans for breakpoints. |
| 747 | // This is a no-op if we're already active. |
| 748 | // Only called from the JDWP handler thread. |
| 749 | if (gDebuggerActive) { |
| 750 | return; |
| 751 | } |
| 752 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 753 | { |
| 754 | // TODO: dalvik only warned if there were breakpoints left over. clear in Dbg::Disconnected? |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 755 | ReaderMutexLock mu(Thread::Current(), *Locks::breakpoint_lock_); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 756 | CHECK_EQ(gBreakpoints.size(), 0U); |
| 757 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 758 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 759 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 760 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 761 | CHECK_EQ(deoptimization_requests_.size(), 0U); |
| 762 | CHECK_EQ(full_deoptimization_event_count_, 0U); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 763 | CHECK_EQ(delayed_full_undeoptimization_count_, 0U); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 764 | CHECK_EQ(dex_pc_change_event_ref_count_, 0U); |
| 765 | CHECK_EQ(method_enter_event_ref_count_, 0U); |
| 766 | CHECK_EQ(method_exit_event_ref_count_, 0U); |
| 767 | CHECK_EQ(field_read_event_ref_count_, 0U); |
| 768 | CHECK_EQ(field_write_event_ref_count_, 0U); |
| 769 | CHECK_EQ(exception_catch_event_ref_count_, 0U); |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 770 | } |
| 771 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 772 | Runtime* runtime = Runtime::Current(); |
| 773 | runtime->GetThreadList()->SuspendAll(); |
| 774 | Thread* self = Thread::Current(); |
| 775 | ThreadState old_state = self->SetStateUnsafe(kRunnable); |
| 776 | CHECK_NE(old_state, kRunnable); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 777 | if (RequiresDeoptimization()) { |
| 778 | runtime->GetInstrumentation()->EnableDeoptimization(); |
| 779 | } |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 780 | instrumentation_events_ = 0; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 781 | gDebuggerActive = true; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 782 | CHECK_EQ(self->SetStateUnsafe(old_state), kRunnable); |
| 783 | runtime->GetThreadList()->ResumeAll(); |
| 784 | |
| 785 | LOG(INFO) << "Debugger is active"; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 786 | } |
| 787 | |
| 788 | void Dbg::Disconnected() { |
Elliott Hughes | 234ab15 | 2011-10-26 14:02:26 -0700 | [diff] [blame] | 789 | CHECK(gDebuggerConnected); |
| 790 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 791 | LOG(INFO) << "Debugger is no longer active"; |
Elliott Hughes | 234ab15 | 2011-10-26 14:02:26 -0700 | [diff] [blame] | 792 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 793 | // Suspend all threads and exclusively acquire the mutator lock. Set the state of the thread |
| 794 | // to kRunnable to avoid scoped object access transitions. Remove the debugger as a listener |
| 795 | // and clear the object registry. |
| 796 | Runtime* runtime = Runtime::Current(); |
| 797 | runtime->GetThreadList()->SuspendAll(); |
| 798 | Thread* self = Thread::Current(); |
| 799 | ThreadState old_state = self->SetStateUnsafe(kRunnable); |
Sebastien Hertz | aaea734 | 2014-02-25 15:10:04 +0100 | [diff] [blame] | 800 | |
| 801 | // Debugger may not be active at this point. |
| 802 | if (gDebuggerActive) { |
| 803 | { |
| 804 | // Since we're going to disable deoptimization, we clear the deoptimization requests queue. |
| 805 | // This prevents us from having any pending deoptimization request when the debugger attaches |
| 806 | // to us again while no event has been requested yet. |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 807 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 808 | deoptimization_requests_.clear(); |
| 809 | full_deoptimization_event_count_ = 0U; |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 810 | delayed_full_undeoptimization_count_ = 0U; |
Sebastien Hertz | aaea734 | 2014-02-25 15:10:04 +0100 | [diff] [blame] | 811 | } |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 812 | if (instrumentation_events_ != 0) { |
| 813 | runtime->GetInstrumentation()->RemoveListener(&gDebugInstrumentationListener, |
| 814 | instrumentation_events_); |
| 815 | instrumentation_events_ = 0; |
| 816 | } |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 817 | if (RequiresDeoptimization()) { |
| 818 | runtime->GetInstrumentation()->DisableDeoptimization(); |
| 819 | } |
Sebastien Hertz | aaea734 | 2014-02-25 15:10:04 +0100 | [diff] [blame] | 820 | gDebuggerActive = false; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 821 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 822 | CHECK_EQ(self->SetStateUnsafe(old_state), kRunnable); |
| 823 | runtime->GetThreadList()->ResumeAll(); |
Sebastien Hertz | 55f6534 | 2015-01-13 22:48:34 +0100 | [diff] [blame] | 824 | |
| 825 | { |
| 826 | ScopedObjectAccess soa(self); |
| 827 | gRegistry->Clear(); |
| 828 | } |
| 829 | |
| 830 | gDebuggerConnected = false; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 831 | } |
| 832 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 833 | bool Dbg::IsDebuggerActive() { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 834 | return gDebuggerActive; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 835 | } |
| 836 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 837 | bool Dbg::IsJdwpConfigured() { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 838 | return gJdwpConfigured; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | int64_t Dbg::LastDebuggerActivity() { |
Elliott Hughes | ca95152 | 2011-12-05 12:01:32 -0800 | [diff] [blame] | 842 | return gJdwpState->LastDebuggerActivity(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 843 | } |
| 844 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 845 | void Dbg::UndoDebuggerSuspensions() { |
Elliott Hughes | 234ab15 | 2011-10-26 14:02:26 -0700 | [diff] [blame] | 846 | Runtime::Current()->GetThreadList()->UndoDebuggerSuspensions(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 847 | } |
| 848 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 849 | std::string Dbg::GetClassName(JDWP::RefTypeId class_id) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 850 | JDWP::JdwpError error; |
| 851 | mirror::Object* o = gRegistry->Get<mirror::Object*>(class_id, &error); |
| 852 | if (o == nullptr) { |
| 853 | if (error == JDWP::ERR_NONE) { |
| 854 | return "NULL"; |
| 855 | } else { |
| 856 | return StringPrintf("invalid object %p", reinterpret_cast<void*>(class_id)); |
| 857 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 858 | } |
| 859 | if (!o->IsClass()) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 860 | return StringPrintf("non-class %p", o); // This is only used for debugging output anyway. |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 861 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 862 | return GetClassName(o->AsClass()); |
| 863 | } |
| 864 | |
| 865 | std::string Dbg::GetClassName(mirror::Class* klass) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 866 | if (klass == nullptr) { |
| 867 | return "NULL"; |
| 868 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 869 | std::string temp; |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 870 | return DescriptorToName(klass->GetDescriptor(&temp)); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 871 | } |
| 872 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 873 | JDWP::JdwpError Dbg::GetClassObject(JDWP::RefTypeId id, JDWP::ObjectId* class_object_id) { |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 874 | JDWP::JdwpError status; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 875 | mirror::Class* c = DecodeClass(id, &status); |
| 876 | if (c == nullptr) { |
| 877 | *class_object_id = 0; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 878 | return status; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 879 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 880 | *class_object_id = gRegistry->Add(c); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 881 | return JDWP::ERR_NONE; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 882 | } |
| 883 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 884 | JDWP::JdwpError Dbg::GetSuperclass(JDWP::RefTypeId id, JDWP::RefTypeId* superclass_id) { |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 885 | JDWP::JdwpError status; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 886 | mirror::Class* c = DecodeClass(id, &status); |
| 887 | if (c == nullptr) { |
| 888 | *superclass_id = 0; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 889 | return status; |
| 890 | } |
| 891 | if (c->IsInterface()) { |
| 892 | // http://code.google.com/p/android/issues/detail?id=20856 |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 893 | *superclass_id = 0; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 894 | } else { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 895 | *superclass_id = gRegistry->Add(c->GetSuperClass()); |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 896 | } |
| 897 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 898 | } |
| 899 | |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 900 | JDWP::JdwpError Dbg::GetClassLoader(JDWP::RefTypeId id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 901 | JDWP::JdwpError error; |
| 902 | mirror::Object* o = gRegistry->Get<mirror::Object*>(id, &error); |
| 903 | if (o == nullptr) { |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 904 | return JDWP::ERR_INVALID_OBJECT; |
| 905 | } |
| 906 | expandBufAddObjectId(pReply, gRegistry->Add(o->GetClass()->GetClassLoader())); |
| 907 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 908 | } |
| 909 | |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 910 | JDWP::JdwpError Dbg::GetModifiers(JDWP::RefTypeId id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 911 | JDWP::JdwpError error; |
| 912 | mirror::Class* c = DecodeClass(id, &error); |
| 913 | if (c == nullptr) { |
| 914 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 915 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 916 | |
| 917 | uint32_t access_flags = c->GetAccessFlags() & kAccJavaFlagsMask; |
| 918 | |
Yevgeny Rouban | de34eea | 2014-02-15 01:06:03 +0700 | [diff] [blame] | 919 | // Set ACC_SUPER. Dex files don't contain this flag but only classes are supposed to have it set, |
| 920 | // not interfaces. |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 921 | // Class.getModifiers doesn't return it, but JDWP does, so we set it here. |
Yevgeny Rouban | de34eea | 2014-02-15 01:06:03 +0700 | [diff] [blame] | 922 | if ((access_flags & kAccInterface) == 0) { |
| 923 | access_flags |= kAccSuper; |
| 924 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 925 | |
| 926 | expandBufAdd4BE(pReply, access_flags); |
| 927 | |
| 928 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 929 | } |
| 930 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 931 | JDWP::JdwpError Dbg::GetMonitorInfo(JDWP::ObjectId object_id, JDWP::ExpandBuf* reply) { |
| 932 | JDWP::JdwpError error; |
| 933 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 934 | if (o == nullptr) { |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 935 | return JDWP::ERR_INVALID_OBJECT; |
| 936 | } |
| 937 | |
| 938 | // Ensure all threads are suspended while we read objects' lock words. |
| 939 | Thread* self = Thread::Current(); |
Sebastien Hertz | 5426324 | 2014-03-19 18:16:50 +0100 | [diff] [blame] | 940 | CHECK_EQ(self->GetState(), kRunnable); |
| 941 | self->TransitionFromRunnableToSuspended(kSuspended); |
| 942 | Runtime::Current()->GetThreadList()->SuspendAll(); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 943 | |
| 944 | MonitorInfo monitor_info(o); |
| 945 | |
Sebastien Hertz | 5426324 | 2014-03-19 18:16:50 +0100 | [diff] [blame] | 946 | Runtime::Current()->GetThreadList()->ResumeAll(); |
| 947 | self->TransitionFromSuspendedToRunnable(); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 948 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 949 | if (monitor_info.owner_ != nullptr) { |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 950 | expandBufAddObjectId(reply, gRegistry->Add(monitor_info.owner_->GetPeer())); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 951 | } else { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 952 | expandBufAddObjectId(reply, gRegistry->Add(nullptr)); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 953 | } |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 954 | expandBufAdd4BE(reply, monitor_info.entry_count_); |
| 955 | expandBufAdd4BE(reply, monitor_info.waiters_.size()); |
| 956 | for (size_t i = 0; i < monitor_info.waiters_.size(); ++i) { |
| 957 | expandBufAddObjectId(reply, gRegistry->Add(monitor_info.waiters_[i]->GetPeer())); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 958 | } |
| 959 | return JDWP::ERR_NONE; |
| 960 | } |
| 961 | |
Elliott Hughes | 734b8c6 | 2013-01-11 15:32:45 -0800 | [diff] [blame] | 962 | JDWP::JdwpError Dbg::GetOwnedMonitors(JDWP::ObjectId thread_id, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 963 | std::vector<JDWP::ObjectId>* monitors, |
| 964 | std::vector<uint32_t>* stack_depths) { |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 965 | struct OwnedMonitorVisitor : public StackVisitor { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 966 | OwnedMonitorVisitor(Thread* thread, Context* context, |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 967 | std::vector<JDWP::ObjectId>* monitor_vector, |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 968 | std::vector<uint32_t>* stack_depth_vector) |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 969 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 970 | : StackVisitor(thread, context), current_stack_depth(0), |
| 971 | monitors(monitor_vector), stack_depths(stack_depth_vector) {} |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 972 | |
| 973 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 974 | // annotalysis. |
| 975 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
| 976 | if (!GetMethod()->IsRuntimeMethod()) { |
| 977 | Monitor::VisitLocks(this, AppendOwnedMonitors, this); |
Elliott Hughes | 734b8c6 | 2013-01-11 15:32:45 -0800 | [diff] [blame] | 978 | ++current_stack_depth; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 979 | } |
| 980 | return true; |
| 981 | } |
| 982 | |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 983 | static void AppendOwnedMonitors(mirror::Object* owned_monitor, void* arg) |
| 984 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 985 | OwnedMonitorVisitor* visitor = reinterpret_cast<OwnedMonitorVisitor*>(arg); |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 986 | visitor->monitors->push_back(gRegistry->Add(owned_monitor)); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 987 | visitor->stack_depths->push_back(visitor->current_stack_depth); |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 988 | } |
| 989 | |
Elliott Hughes | 734b8c6 | 2013-01-11 15:32:45 -0800 | [diff] [blame] | 990 | size_t current_stack_depth; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 991 | std::vector<JDWP::ObjectId>* const monitors; |
| 992 | std::vector<uint32_t>* const stack_depths; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 993 | }; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 994 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 995 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 996 | Thread* thread; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 997 | { |
| 998 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 999 | JDWP::JdwpError error; |
| 1000 | thread = DecodeThread(soa, thread_id, &error); |
| 1001 | if (thread == nullptr) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1002 | return error; |
| 1003 | } |
| 1004 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 1005 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 1006 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1007 | } |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 1008 | std::unique_ptr<Context> context(Context::Create()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1009 | OwnedMonitorVisitor visitor(thread, context.get(), monitors, stack_depths); |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 1010 | visitor.WalkStack(); |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 1011 | return JDWP::ERR_NONE; |
| 1012 | } |
| 1013 | |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 1014 | JDWP::JdwpError Dbg::GetContendedMonitor(JDWP::ObjectId thread_id, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1015 | JDWP::ObjectId* contended_monitor) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1016 | mirror::Object* contended_monitor_obj; |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 1017 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1018 | *contended_monitor = 0; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1019 | { |
| 1020 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1021 | JDWP::JdwpError error; |
| 1022 | Thread* thread = DecodeThread(soa, thread_id, &error); |
| 1023 | if (thread == nullptr) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1024 | return error; |
| 1025 | } |
| 1026 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 1027 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 1028 | } |
| 1029 | contended_monitor_obj = Monitor::GetContendedMonitor(thread); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 1030 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1031 | // Add() requires the thread_list_lock_ not held to avoid the lock |
| 1032 | // level violation. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1033 | *contended_monitor = gRegistry->Add(contended_monitor_obj); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 1034 | return JDWP::ERR_NONE; |
| 1035 | } |
| 1036 | |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 1037 | JDWP::JdwpError Dbg::GetInstanceCounts(const std::vector<JDWP::RefTypeId>& class_ids, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1038 | std::vector<uint64_t>* counts) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 1039 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1040 | heap->CollectGarbage(false); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1041 | std::vector<mirror::Class*> classes; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1042 | counts->clear(); |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 1043 | for (size_t i = 0; i < class_ids.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1044 | JDWP::JdwpError error; |
| 1045 | mirror::Class* c = DecodeClass(class_ids[i], &error); |
| 1046 | if (c == nullptr) { |
| 1047 | return error; |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 1048 | } |
| 1049 | classes.push_back(c); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1050 | counts->push_back(0); |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 1051 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1052 | heap->CountInstances(classes, false, &(*counts)[0]); |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 1053 | return JDWP::ERR_NONE; |
| 1054 | } |
| 1055 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1056 | JDWP::JdwpError Dbg::GetInstances(JDWP::RefTypeId class_id, int32_t max_count, |
| 1057 | std::vector<JDWP::ObjectId>* instances) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 1058 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1059 | // We only want reachable instances, so do a GC. |
| 1060 | heap->CollectGarbage(false); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1061 | JDWP::JdwpError error; |
| 1062 | mirror::Class* c = DecodeClass(class_id, &error); |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 1063 | if (c == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1064 | return error; |
Elliott Hughes | 3b78c94 | 2013-01-15 17:35:41 -0800 | [diff] [blame] | 1065 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1066 | std::vector<mirror::Object*> raw_instances; |
Elliott Hughes | 3b78c94 | 2013-01-15 17:35:41 -0800 | [diff] [blame] | 1067 | Runtime::Current()->GetHeap()->GetInstances(c, max_count, raw_instances); |
| 1068 | for (size_t i = 0; i < raw_instances.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1069 | instances->push_back(gRegistry->Add(raw_instances[i])); |
Elliott Hughes | 3b78c94 | 2013-01-15 17:35:41 -0800 | [diff] [blame] | 1070 | } |
| 1071 | return JDWP::ERR_NONE; |
| 1072 | } |
| 1073 | |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 1074 | JDWP::JdwpError Dbg::GetReferringObjects(JDWP::ObjectId object_id, int32_t max_count, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1075 | std::vector<JDWP::ObjectId>* referring_objects) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 1076 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 1077 | heap->CollectGarbage(false); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1078 | JDWP::JdwpError error; |
| 1079 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1080 | if (o == nullptr) { |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 1081 | return JDWP::ERR_INVALID_OBJECT; |
| 1082 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1083 | std::vector<mirror::Object*> raw_instances; |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 1084 | heap->GetReferringObjects(o, max_count, raw_instances); |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 1085 | for (size_t i = 0; i < raw_instances.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1086 | referring_objects->push_back(gRegistry->Add(raw_instances[i])); |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 1087 | } |
| 1088 | return JDWP::ERR_NONE; |
| 1089 | } |
| 1090 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1091 | JDWP::JdwpError Dbg::DisableCollection(JDWP::ObjectId object_id) { |
| 1092 | JDWP::JdwpError error; |
| 1093 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1094 | if (o == nullptr) { |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 1095 | return JDWP::ERR_INVALID_OBJECT; |
| 1096 | } |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1097 | gRegistry->DisableCollection(object_id); |
| 1098 | return JDWP::ERR_NONE; |
| 1099 | } |
| 1100 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1101 | JDWP::JdwpError Dbg::EnableCollection(JDWP::ObjectId object_id) { |
| 1102 | JDWP::JdwpError error; |
| 1103 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 1104 | // Unlike DisableCollection, JDWP specs do not state an invalid object causes an error. The RI |
| 1105 | // also ignores these cases and never return an error. However it's not obvious why this command |
| 1106 | // should behave differently from DisableCollection and IsCollected commands. So let's be more |
| 1107 | // strict and return an error if this happens. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1108 | if (o == nullptr) { |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 1109 | return JDWP::ERR_INVALID_OBJECT; |
| 1110 | } |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1111 | gRegistry->EnableCollection(object_id); |
| 1112 | return JDWP::ERR_NONE; |
| 1113 | } |
| 1114 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1115 | JDWP::JdwpError Dbg::IsCollected(JDWP::ObjectId object_id, bool* is_collected) { |
| 1116 | *is_collected = true; |
Sebastien Hertz | 65637eb | 2014-01-10 17:40:02 +0100 | [diff] [blame] | 1117 | if (object_id == 0) { |
| 1118 | // Null object id is invalid. |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 1119 | return JDWP::ERR_INVALID_OBJECT; |
| 1120 | } |
Sebastien Hertz | 65637eb | 2014-01-10 17:40:02 +0100 | [diff] [blame] | 1121 | // JDWP specs state an INVALID_OBJECT error is returned if the object ID is not valid. However |
| 1122 | // the RI seems to ignore this and assume object has been collected. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1123 | JDWP::JdwpError error; |
| 1124 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1125 | if (o != nullptr) { |
| 1126 | *is_collected = gRegistry->IsCollected(object_id); |
Sebastien Hertz | 65637eb | 2014-01-10 17:40:02 +0100 | [diff] [blame] | 1127 | } |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1128 | return JDWP::ERR_NONE; |
| 1129 | } |
| 1130 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1131 | void Dbg::DisposeObject(JDWP::ObjectId object_id, uint32_t reference_count) { |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1132 | gRegistry->DisposeObject(object_id, reference_count); |
| 1133 | } |
| 1134 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1135 | JDWP::JdwpTypeTag Dbg::GetTypeTag(mirror::Class* klass) { |
Sebastien Hertz | 4d8fd49 | 2014-03-28 16:29:41 +0100 | [diff] [blame] | 1136 | DCHECK(klass != nullptr); |
| 1137 | if (klass->IsArrayClass()) { |
| 1138 | return JDWP::TT_ARRAY; |
| 1139 | } else if (klass->IsInterface()) { |
| 1140 | return JDWP::TT_INTERFACE; |
| 1141 | } else { |
| 1142 | return JDWP::TT_CLASS; |
| 1143 | } |
| 1144 | } |
| 1145 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1146 | JDWP::JdwpError Dbg::GetReflectedType(JDWP::RefTypeId class_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1147 | JDWP::JdwpError error; |
| 1148 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1149 | if (c == nullptr) { |
| 1150 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1151 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1152 | |
Sebastien Hertz | 4d8fd49 | 2014-03-28 16:29:41 +0100 | [diff] [blame] | 1153 | JDWP::JdwpTypeTag type_tag = GetTypeTag(c); |
| 1154 | expandBufAdd1(pReply, type_tag); |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1155 | expandBufAddRefTypeId(pReply, class_id); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1156 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1157 | } |
| 1158 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1159 | void Dbg::GetClassList(std::vector<JDWP::RefTypeId>* classes) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1160 | // Get the complete list of reference classes (i.e. all classes except |
| 1161 | // the primitive types). |
| 1162 | // Returns a newly-allocated buffer full of RefTypeId values. |
| 1163 | struct ClassListCreator { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1164 | explicit ClassListCreator(std::vector<JDWP::RefTypeId>* classes_in) : classes(classes_in) { |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1165 | } |
| 1166 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1167 | static bool Visit(mirror::Class* c, void* arg) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1168 | return reinterpret_cast<ClassListCreator*>(arg)->Visit(c); |
| 1169 | } |
| 1170 | |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1171 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 1172 | // annotalysis. |
| 1173 | bool Visit(mirror::Class* c) NO_THREAD_SAFETY_ANALYSIS { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1174 | if (!c->IsPrimitive()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1175 | classes->push_back(gRegistry->AddRefType(c)); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1176 | } |
| 1177 | return true; |
| 1178 | } |
| 1179 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1180 | std::vector<JDWP::RefTypeId>* const classes; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1181 | }; |
| 1182 | |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1183 | ClassListCreator clc(classes); |
Sebastien Hertz | 4537c41 | 2014-08-28 14:41:50 +0200 | [diff] [blame] | 1184 | Runtime::Current()->GetClassLinker()->VisitClassesWithoutClassesLock(ClassListCreator::Visit, |
| 1185 | &clc); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1186 | } |
| 1187 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1188 | JDWP::JdwpError Dbg::GetClassInfo(JDWP::RefTypeId class_id, JDWP::JdwpTypeTag* pTypeTag, |
| 1189 | uint32_t* pStatus, std::string* pDescriptor) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1190 | JDWP::JdwpError error; |
| 1191 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1192 | if (c == nullptr) { |
| 1193 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1194 | } |
| 1195 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1196 | if (c->IsArrayClass()) { |
| 1197 | *pStatus = JDWP::CS_VERIFIED | JDWP::CS_PREPARED; |
| 1198 | *pTypeTag = JDWP::TT_ARRAY; |
| 1199 | } else { |
| 1200 | if (c->IsErroneous()) { |
| 1201 | *pStatus = JDWP::CS_ERROR; |
| 1202 | } else { |
| 1203 | *pStatus = JDWP::CS_VERIFIED | JDWP::CS_PREPARED | JDWP::CS_INITIALIZED; |
| 1204 | } |
| 1205 | *pTypeTag = c->IsInterface() ? JDWP::TT_INTERFACE : JDWP::TT_CLASS; |
| 1206 | } |
| 1207 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1208 | if (pDescriptor != nullptr) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1209 | std::string temp; |
| 1210 | *pDescriptor = c->GetDescriptor(&temp); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1211 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1212 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1213 | } |
| 1214 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1215 | void Dbg::FindLoadedClassBySignature(const char* descriptor, std::vector<JDWP::RefTypeId>* ids) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1216 | std::vector<mirror::Class*> classes; |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1217 | Runtime::Current()->GetClassLinker()->LookupClasses(descriptor, classes); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1218 | ids->clear(); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1219 | for (size_t i = 0; i < classes.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1220 | ids->push_back(gRegistry->Add(classes[i])); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1221 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1222 | } |
| 1223 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1224 | JDWP::JdwpError Dbg::GetReferenceType(JDWP::ObjectId object_id, JDWP::ExpandBuf* pReply) { |
| 1225 | JDWP::JdwpError error; |
| 1226 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1227 | if (o == nullptr) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1228 | return JDWP::ERR_INVALID_OBJECT; |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 1229 | } |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1230 | |
Sebastien Hertz | 4d8fd49 | 2014-03-28 16:29:41 +0100 | [diff] [blame] | 1231 | JDWP::JdwpTypeTag type_tag = GetTypeTag(o->GetClass()); |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1232 | JDWP::RefTypeId type_id = gRegistry->AddRefType(o->GetClass()); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1233 | |
| 1234 | expandBufAdd1(pReply, type_tag); |
| 1235 | expandBufAddRefTypeId(pReply, type_id); |
| 1236 | |
| 1237 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1238 | } |
| 1239 | |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 1240 | JDWP::JdwpError Dbg::GetSignature(JDWP::RefTypeId class_id, std::string* signature) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1241 | JDWP::JdwpError error; |
| 1242 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1243 | if (c == nullptr) { |
| 1244 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1245 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1246 | std::string temp; |
| 1247 | *signature = c->GetDescriptor(&temp); |
Elliott Hughes | 1fe7afb | 2012-02-13 17:23:03 -0800 | [diff] [blame] | 1248 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1249 | } |
| 1250 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1251 | JDWP::JdwpError Dbg::GetSourceFile(JDWP::RefTypeId class_id, std::string* result) { |
| 1252 | JDWP::JdwpError error; |
| 1253 | mirror::Class* c = DecodeClass(class_id, &error); |
Sebastien Hertz | 4206eb5 | 2014-06-05 10:15:45 +0200 | [diff] [blame] | 1254 | if (c == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1255 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1256 | } |
Sebastien Hertz | 4206eb5 | 2014-06-05 10:15:45 +0200 | [diff] [blame] | 1257 | const char* source_file = c->GetSourceFile(); |
| 1258 | if (source_file == nullptr) { |
Sebastien Hertz | b7054ba | 2014-03-13 11:52:31 +0100 | [diff] [blame] | 1259 | return JDWP::ERR_ABSENT_INFORMATION; |
| 1260 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1261 | *result = source_file; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1262 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1263 | } |
| 1264 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1265 | JDWP::JdwpError Dbg::GetObjectTag(JDWP::ObjectId object_id, uint8_t* tag) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1266 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1267 | JDWP::JdwpError error; |
| 1268 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1269 | if (error != JDWP::ERR_NONE) { |
| 1270 | *tag = JDWP::JT_VOID; |
| 1271 | return error; |
Elliott Hughes | 546b986 | 2012-06-20 16:06:13 -0700 | [diff] [blame] | 1272 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1273 | *tag = TagFromObject(soa, o); |
Elliott Hughes | 546b986 | 2012-06-20 16:06:13 -0700 | [diff] [blame] | 1274 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1275 | } |
| 1276 | |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1277 | size_t Dbg::GetTagWidth(JDWP::JdwpTag tag) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1278 | switch (tag) { |
| 1279 | case JDWP::JT_VOID: |
| 1280 | return 0; |
| 1281 | case JDWP::JT_BYTE: |
| 1282 | case JDWP::JT_BOOLEAN: |
| 1283 | return 1; |
| 1284 | case JDWP::JT_CHAR: |
| 1285 | case JDWP::JT_SHORT: |
| 1286 | return 2; |
| 1287 | case JDWP::JT_FLOAT: |
| 1288 | case JDWP::JT_INT: |
| 1289 | return 4; |
| 1290 | case JDWP::JT_ARRAY: |
| 1291 | case JDWP::JT_OBJECT: |
| 1292 | case JDWP::JT_STRING: |
| 1293 | case JDWP::JT_THREAD: |
| 1294 | case JDWP::JT_THREAD_GROUP: |
| 1295 | case JDWP::JT_CLASS_LOADER: |
| 1296 | case JDWP::JT_CLASS_OBJECT: |
| 1297 | return sizeof(JDWP::ObjectId); |
| 1298 | case JDWP::JT_DOUBLE: |
| 1299 | case JDWP::JT_LONG: |
| 1300 | return 8; |
| 1301 | default: |
Elliott Hughes | 3d30d9b | 2011-12-07 17:35:48 -0800 | [diff] [blame] | 1302 | LOG(FATAL) << "Unknown tag " << tag; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1303 | return -1; |
| 1304 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1305 | } |
| 1306 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1307 | JDWP::JdwpError Dbg::GetArrayLength(JDWP::ObjectId array_id, int32_t* length) { |
| 1308 | JDWP::JdwpError error; |
| 1309 | mirror::Array* a = DecodeNonNullArray(array_id, &error); |
| 1310 | if (a == nullptr) { |
| 1311 | return error; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1312 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1313 | *length = a->GetLength(); |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1314 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1315 | } |
| 1316 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1317 | JDWP::JdwpError Dbg::OutputArray(JDWP::ObjectId array_id, int offset, int count, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1318 | JDWP::JdwpError error; |
| 1319 | mirror::Array* a = DecodeNonNullArray(array_id, &error); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1320 | if (a == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1321 | return error; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1322 | } |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1323 | |
| 1324 | if (offset < 0 || count < 0 || offset > a->GetLength() || a->GetLength() - offset < count) { |
| 1325 | LOG(WARNING) << __FUNCTION__ << " access out of bounds: offset=" << offset << "; count=" << count; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1326 | return JDWP::ERR_INVALID_LENGTH; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1327 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1328 | JDWP::JdwpTag element_tag = BasicTagFromClass(a->GetClass()->GetComponentType()); |
| 1329 | expandBufAdd1(pReply, element_tag); |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1330 | expandBufAdd4BE(pReply, count); |
| 1331 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1332 | if (IsPrimitiveTag(element_tag)) { |
| 1333 | size_t width = GetTagWidth(element_tag); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1334 | uint8_t* dst = expandBufAddSpace(pReply, count * width); |
| 1335 | if (width == 8) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1336 | const uint64_t* src8 = reinterpret_cast<uint64_t*>(a->GetRawData(sizeof(uint64_t), 0)); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1337 | for (int i = 0; i < count; ++i) JDWP::Write8BE(&dst, src8[offset + i]); |
| 1338 | } else if (width == 4) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1339 | const uint32_t* src4 = reinterpret_cast<uint32_t*>(a->GetRawData(sizeof(uint32_t), 0)); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1340 | for (int i = 0; i < count; ++i) JDWP::Write4BE(&dst, src4[offset + i]); |
| 1341 | } else if (width == 2) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1342 | const uint16_t* src2 = reinterpret_cast<uint16_t*>(a->GetRawData(sizeof(uint16_t), 0)); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1343 | for (int i = 0; i < count; ++i) JDWP::Write2BE(&dst, src2[offset + i]); |
| 1344 | } else { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1345 | const uint8_t* src = reinterpret_cast<uint8_t*>(a->GetRawData(sizeof(uint8_t), 0)); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1346 | memcpy(dst, &src[offset * width], count * width); |
| 1347 | } |
| 1348 | } else { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1349 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1350 | mirror::ObjectArray<mirror::Object>* oa = a->AsObjectArray<mirror::Object>(); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1351 | for (int i = 0; i < count; ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1352 | mirror::Object* element = oa->Get(offset + i); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1353 | JDWP::JdwpTag specific_tag = (element != nullptr) ? TagFromObject(soa, element) |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1354 | : element_tag; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1355 | expandBufAdd1(pReply, specific_tag); |
| 1356 | expandBufAddObjectId(pReply, gRegistry->Add(element)); |
| 1357 | } |
| 1358 | } |
| 1359 | |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1360 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1361 | } |
| 1362 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1363 | template <typename T> |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1364 | static void CopyArrayData(mirror::Array* a, JDWP::Request* src, int offset, int count) |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1365 | NO_THREAD_SAFETY_ANALYSIS { |
| 1366 | // TODO: fix when annotalysis correctly handles non-member functions. |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1367 | DCHECK(a->GetClass()->IsPrimitiveArray()); |
| 1368 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1369 | T* dst = reinterpret_cast<T*>(a->GetRawData(sizeof(T), offset)); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1370 | for (int i = 0; i < count; ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1371 | *dst++ = src->ReadValue(sizeof(T)); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1372 | } |
| 1373 | } |
| 1374 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1375 | JDWP::JdwpError Dbg::SetArrayElements(JDWP::ObjectId array_id, int offset, int count, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1376 | JDWP::Request* request) { |
| 1377 | JDWP::JdwpError error; |
| 1378 | mirror::Array* dst = DecodeNonNullArray(array_id, &error); |
| 1379 | if (dst == nullptr) { |
| 1380 | return error; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1381 | } |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1382 | |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1383 | if (offset < 0 || count < 0 || offset > dst->GetLength() || dst->GetLength() - offset < count) { |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1384 | LOG(WARNING) << __FUNCTION__ << " access out of bounds: offset=" << offset << "; count=" << count; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1385 | return JDWP::ERR_INVALID_LENGTH; |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1386 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1387 | JDWP::JdwpTag element_tag = BasicTagFromClass(dst->GetClass()->GetComponentType()); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1388 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1389 | if (IsPrimitiveTag(element_tag)) { |
| 1390 | size_t width = GetTagWidth(element_tag); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1391 | if (width == 8) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1392 | CopyArrayData<uint64_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1393 | } else if (width == 4) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1394 | CopyArrayData<uint32_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1395 | } else if (width == 2) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1396 | CopyArrayData<uint16_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1397 | } else { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1398 | CopyArrayData<uint8_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1399 | } |
| 1400 | } else { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1401 | mirror::ObjectArray<mirror::Object>* oa = dst->AsObjectArray<mirror::Object>(); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1402 | for (int i = 0; i < count; ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1403 | JDWP::ObjectId id = request->ReadObjectId(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1404 | mirror::Object* o = gRegistry->Get<mirror::Object*>(id, &error); |
| 1405 | if (error != JDWP::ERR_NONE) { |
| 1406 | return error; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1407 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1408 | oa->Set<false>(offset + i, o); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1409 | } |
| 1410 | } |
| 1411 | |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1412 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1413 | } |
| 1414 | |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1415 | JDWP::ObjectId Dbg::CreateString(const std::string& str) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1416 | return gRegistry->Add(mirror::String::AllocFromModifiedUtf8(Thread::Current(), str.c_str())); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1417 | } |
| 1418 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1419 | JDWP::JdwpError Dbg::CreateObject(JDWP::RefTypeId class_id, JDWP::ObjectId* new_object) { |
| 1420 | JDWP::JdwpError error; |
| 1421 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1422 | if (c == nullptr) { |
| 1423 | *new_object = 0; |
| 1424 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1425 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1426 | *new_object = gRegistry->Add(c->AllocObject(Thread::Current())); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1427 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1428 | } |
| 1429 | |
Elliott Hughes | bf13d36 | 2011-12-08 15:51:37 -0800 | [diff] [blame] | 1430 | /* |
| 1431 | * Used by Eclipse's "Display" view to evaluate "new byte[5]" to get "(byte[]) [0, 0, 0, 0, 0]". |
| 1432 | */ |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1433 | JDWP::JdwpError Dbg::CreateArrayObject(JDWP::RefTypeId array_class_id, uint32_t length, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1434 | JDWP::ObjectId* new_array) { |
| 1435 | JDWP::JdwpError error; |
| 1436 | mirror::Class* c = DecodeClass(array_class_id, &error); |
| 1437 | if (c == nullptr) { |
| 1438 | *new_array = 0; |
| 1439 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1440 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1441 | *new_array = gRegistry->Add(mirror::Array::Alloc<true>(Thread::Current(), c, length, |
Hiroshi Yamauchi | f0edfc3 | 2014-09-25 11:46:46 -0700 | [diff] [blame] | 1442 | c->GetComponentSizeShift(), |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1443 | Runtime::Current()->GetHeap()->GetCurrentAllocator())); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1444 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1445 | } |
| 1446 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1447 | JDWP::FieldId Dbg::ToFieldId(const mirror::ArtField* f) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1448 | CHECK(!kMovingFields); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1449 | return static_cast<JDWP::FieldId>(reinterpret_cast<uintptr_t>(f)); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1450 | } |
| 1451 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1452 | static JDWP::MethodId ToMethodId(const mirror::ArtMethod* m) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1453 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1454 | CHECK(!kMovingMethods); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1455 | return static_cast<JDWP::MethodId>(reinterpret_cast<uintptr_t>(m)); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1456 | } |
| 1457 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1458 | static mirror::ArtField* FromFieldId(JDWP::FieldId fid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1459 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1460 | CHECK(!kMovingFields); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1461 | return reinterpret_cast<mirror::ArtField*>(static_cast<uintptr_t>(fid)); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1462 | } |
| 1463 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1464 | static mirror::ArtMethod* FromMethodId(JDWP::MethodId mid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1465 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1466 | CHECK(!kMovingMethods); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1467 | return reinterpret_cast<mirror::ArtMethod*>(static_cast<uintptr_t>(mid)); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1468 | } |
| 1469 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1470 | bool Dbg::MatchThread(JDWP::ObjectId expected_thread_id, Thread* event_thread) { |
| 1471 | CHECK(event_thread != nullptr); |
| 1472 | JDWP::JdwpError error; |
| 1473 | mirror::Object* expected_thread_peer = gRegistry->Get<mirror::Object*>(expected_thread_id, |
| 1474 | &error); |
| 1475 | return expected_thread_peer == event_thread->GetPeer(); |
| 1476 | } |
| 1477 | |
| 1478 | bool Dbg::MatchLocation(const JDWP::JdwpLocation& expected_location, |
| 1479 | const JDWP::EventLocation& event_location) { |
| 1480 | if (expected_location.dex_pc != event_location.dex_pc) { |
| 1481 | return false; |
| 1482 | } |
| 1483 | mirror::ArtMethod* m = FromMethodId(expected_location.method_id); |
| 1484 | return m == event_location.method; |
| 1485 | } |
| 1486 | |
| 1487 | bool Dbg::MatchType(mirror::Class* event_class, JDWP::RefTypeId class_id) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1488 | if (event_class == nullptr) { |
| 1489 | return false; |
| 1490 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1491 | JDWP::JdwpError error; |
| 1492 | mirror::Class* expected_class = DecodeClass(class_id, &error); |
| 1493 | CHECK(expected_class != nullptr); |
| 1494 | return expected_class->IsAssignableFrom(event_class); |
| 1495 | } |
| 1496 | |
| 1497 | bool Dbg::MatchField(JDWP::RefTypeId expected_type_id, JDWP::FieldId expected_field_id, |
| 1498 | mirror::ArtField* event_field) { |
| 1499 | mirror::ArtField* expected_field = FromFieldId(expected_field_id); |
| 1500 | if (expected_field != event_field) { |
| 1501 | return false; |
| 1502 | } |
| 1503 | return Dbg::MatchType(event_field->GetDeclaringClass(), expected_type_id); |
| 1504 | } |
| 1505 | |
| 1506 | bool Dbg::MatchInstance(JDWP::ObjectId expected_instance_id, mirror::Object* event_instance) { |
| 1507 | JDWP::JdwpError error; |
| 1508 | mirror::Object* modifier_instance = gRegistry->Get<mirror::Object*>(expected_instance_id, &error); |
| 1509 | return modifier_instance == event_instance; |
| 1510 | } |
| 1511 | |
| 1512 | void Dbg::SetJdwpLocation(JDWP::JdwpLocation* location, mirror::ArtMethod* m, uint32_t dex_pc) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1513 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1514 | if (m == nullptr) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1515 | memset(location, 0, sizeof(*location)); |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 1516 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1517 | mirror::Class* c = m->GetDeclaringClass(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1518 | location->type_tag = GetTypeTag(c); |
| 1519 | location->class_id = gRegistry->AddRefType(c); |
| 1520 | location->method_id = ToMethodId(m); |
| 1521 | location->dex_pc = (m->IsNative() || m->IsProxyMethod()) ? static_cast<uint64_t>(-1) : dex_pc; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 1522 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 1523 | } |
| 1524 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1525 | std::string Dbg::GetMethodName(JDWP::MethodId method_id) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1526 | mirror::ArtMethod* m = FromMethodId(method_id); |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1527 | if (m == nullptr) { |
| 1528 | return "NULL"; |
| 1529 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1530 | return m->GetName(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1531 | } |
| 1532 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1533 | std::string Dbg::GetFieldName(JDWP::FieldId field_id) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1534 | mirror::ArtField* f = FromFieldId(field_id); |
| 1535 | if (f == nullptr) { |
| 1536 | return "NULL"; |
| 1537 | } |
| 1538 | return f->GetName(); |
Elliott Hughes | a96836a | 2013-01-17 12:27:49 -0800 | [diff] [blame] | 1539 | } |
| 1540 | |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1541 | /* |
| 1542 | * Augment the access flags for synthetic methods and fields by setting |
| 1543 | * the (as described by the spec) "0xf0000000 bit". Also, strip out any |
| 1544 | * flags not specified by the Java programming language. |
| 1545 | */ |
| 1546 | static uint32_t MangleAccessFlags(uint32_t accessFlags) { |
| 1547 | accessFlags &= kAccJavaFlagsMask; |
| 1548 | if ((accessFlags & kAccSynthetic) != 0) { |
| 1549 | accessFlags |= 0xf0000000; |
| 1550 | } |
| 1551 | return accessFlags; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1552 | } |
| 1553 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1554 | /* |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1555 | * Circularly shifts registers so that arguments come first. Debuggers |
| 1556 | * expect slots to begin with arguments, but dex code places them at |
| 1557 | * the end. |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1558 | */ |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1559 | static uint16_t MangleSlot(uint16_t slot, mirror::ArtMethod* m) |
| 1560 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1561 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1562 | if (code_item == nullptr) { |
| 1563 | // We should not get here for a method without code (native, proxy or abstract). Log it and |
| 1564 | // return the slot as is since all registers are arguments. |
| 1565 | LOG(WARNING) << "Trying to mangle slot for method without code " << PrettyMethod(m); |
| 1566 | return slot; |
| 1567 | } |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1568 | uint16_t ins_size = code_item->ins_size_; |
| 1569 | uint16_t locals_size = code_item->registers_size_ - ins_size; |
| 1570 | if (slot >= locals_size) { |
| 1571 | return slot - locals_size; |
| 1572 | } else { |
| 1573 | return slot + ins_size; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1574 | } |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1575 | } |
| 1576 | |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1577 | /* |
| 1578 | * Circularly shifts registers so that arguments come last. Reverts |
| 1579 | * slots to dex style argument placement. |
| 1580 | */ |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1581 | static uint16_t DemangleSlot(uint16_t slot, mirror::ArtMethod* m) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1582 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1583 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1584 | if (code_item == nullptr) { |
| 1585 | // We should not get here for a method without code (native, proxy or abstract). Log it and |
| 1586 | // return the slot as is since all registers are arguments. |
| 1587 | LOG(WARNING) << "Trying to demangle slot for method without code " << PrettyMethod(m); |
| 1588 | return slot; |
| 1589 | } |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1590 | uint16_t ins_size = code_item->ins_size_; |
| 1591 | uint16_t locals_size = code_item->registers_size_ - ins_size; |
| 1592 | if (slot < ins_size) { |
| 1593 | return slot + locals_size; |
| 1594 | } else { |
| 1595 | return slot - ins_size; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1596 | } |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1597 | } |
| 1598 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1599 | JDWP::JdwpError Dbg::OutputDeclaredFields(JDWP::RefTypeId class_id, bool with_generic, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1600 | JDWP::JdwpError error; |
| 1601 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1602 | if (c == nullptr) { |
| 1603 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1604 | } |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1605 | |
| 1606 | size_t instance_field_count = c->NumInstanceFields(); |
| 1607 | size_t static_field_count = c->NumStaticFields(); |
| 1608 | |
| 1609 | expandBufAdd4BE(pReply, instance_field_count + static_field_count); |
| 1610 | |
| 1611 | for (size_t i = 0; i < instance_field_count + static_field_count; ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1612 | mirror::ArtField* f = (i < instance_field_count) ? c->GetInstanceField(i) : c->GetStaticField(i - instance_field_count); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1613 | expandBufAddFieldId(pReply, ToFieldId(f)); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1614 | expandBufAddUtf8String(pReply, f->GetName()); |
| 1615 | expandBufAddUtf8String(pReply, f->GetTypeDescriptor()); |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1616 | if (with_generic) { |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1617 | static const char genericSignature[1] = ""; |
| 1618 | expandBufAddUtf8String(pReply, genericSignature); |
| 1619 | } |
| 1620 | expandBufAdd4BE(pReply, MangleAccessFlags(f->GetAccessFlags())); |
| 1621 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1622 | return JDWP::ERR_NONE; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1623 | } |
| 1624 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1625 | JDWP::JdwpError Dbg::OutputDeclaredMethods(JDWP::RefTypeId class_id, bool with_generic, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1626 | JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1627 | JDWP::JdwpError error; |
| 1628 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1629 | if (c == nullptr) { |
| 1630 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1631 | } |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1632 | |
| 1633 | size_t direct_method_count = c->NumDirectMethods(); |
| 1634 | size_t virtual_method_count = c->NumVirtualMethods(); |
| 1635 | |
| 1636 | expandBufAdd4BE(pReply, direct_method_count + virtual_method_count); |
| 1637 | |
| 1638 | for (size_t i = 0; i < direct_method_count + virtual_method_count; ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1639 | mirror::ArtMethod* m = (i < direct_method_count) ? c->GetDirectMethod(i) : c->GetVirtualMethod(i - direct_method_count); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1640 | expandBufAddMethodId(pReply, ToMethodId(m)); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1641 | expandBufAddUtf8String(pReply, m->GetName()); |
| 1642 | expandBufAddUtf8String(pReply, m->GetSignature().ToString()); |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1643 | if (with_generic) { |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1644 | static const char genericSignature[1] = ""; |
| 1645 | expandBufAddUtf8String(pReply, genericSignature); |
| 1646 | } |
| 1647 | expandBufAdd4BE(pReply, MangleAccessFlags(m->GetAccessFlags())); |
| 1648 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1649 | return JDWP::ERR_NONE; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1650 | } |
| 1651 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1652 | JDWP::JdwpError Dbg::OutputDeclaredInterfaces(JDWP::RefTypeId class_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1653 | JDWP::JdwpError error; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1654 | Thread* self = Thread::Current(); |
| 1655 | StackHandleScope<1> hs(self); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1656 | Handle<mirror::Class> c(hs.NewHandle(DecodeClass(class_id, &error))); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1657 | if (c.Get() == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1658 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1659 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1660 | size_t interface_count = c->NumDirectInterfaces(); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1661 | expandBufAdd4BE(pReply, interface_count); |
| 1662 | for (size_t i = 0; i < interface_count; ++i) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1663 | expandBufAddRefTypeId(pReply, |
| 1664 | gRegistry->AddRefType(mirror::Class::GetDirectInterface(self, c, i))); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1665 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1666 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1667 | } |
| 1668 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1669 | void Dbg::OutputLineTable(JDWP::RefTypeId, JDWP::MethodId method_id, JDWP::ExpandBuf* pReply) { |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1670 | struct DebugCallbackContext { |
| 1671 | int numItems; |
| 1672 | JDWP::ExpandBuf* pReply; |
| 1673 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1674 | static bool Callback(void* context, uint32_t address, uint32_t line_number) { |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1675 | DebugCallbackContext* pContext = reinterpret_cast<DebugCallbackContext*>(context); |
| 1676 | expandBufAdd8BE(pContext->pReply, address); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1677 | expandBufAdd4BE(pContext->pReply, line_number); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1678 | pContext->numItems++; |
Sebastien Hertz | f2910ee | 2013-10-19 16:39:24 +0200 | [diff] [blame] | 1679 | return false; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1680 | } |
| 1681 | }; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1682 | mirror::ArtMethod* m = FromMethodId(method_id); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1683 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1684 | uint64_t start, end; |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1685 | if (code_item == nullptr) { |
| 1686 | DCHECK(m->IsNative() || m->IsProxyMethod()); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1687 | start = -1; |
| 1688 | end = -1; |
| 1689 | } else { |
| 1690 | start = 0; |
jeffhao | 14f0db9 | 2012-12-14 17:50:42 -0800 | [diff] [blame] | 1691 | // Return the index of the last instruction |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1692 | end = code_item->insns_size_in_code_units_ - 1; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1693 | } |
| 1694 | |
| 1695 | expandBufAdd8BE(pReply, start); |
| 1696 | expandBufAdd8BE(pReply, end); |
| 1697 | |
| 1698 | // Add numLines later |
| 1699 | size_t numLinesOffset = expandBufGetLength(pReply); |
| 1700 | expandBufAdd4BE(pReply, 0); |
| 1701 | |
| 1702 | DebugCallbackContext context; |
| 1703 | context.numItems = 0; |
| 1704 | context.pReply = pReply; |
| 1705 | |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1706 | if (code_item != nullptr) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1707 | m->GetDexFile()->DecodeDebugInfo(code_item, m->IsStatic(), m->GetDexMethodIndex(), |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1708 | DebugCallbackContext::Callback, nullptr, &context); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1709 | } |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1710 | |
| 1711 | JDWP::Set4BE(expandBufGetBuffer(pReply) + numLinesOffset, context.numItems); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1712 | } |
| 1713 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1714 | void Dbg::OutputVariableTable(JDWP::RefTypeId, JDWP::MethodId method_id, bool with_generic, |
| 1715 | JDWP::ExpandBuf* pReply) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1716 | struct DebugCallbackContext { |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1717 | mirror::ArtMethod* method; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1718 | JDWP::ExpandBuf* pReply; |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1719 | size_t variable_count; |
| 1720 | bool with_generic; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1721 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1722 | static void Callback(void* context, uint16_t slot, uint32_t startAddress, uint32_t endAddress, |
| 1723 | const char* name, const char* descriptor, const char* signature) |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1724 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1725 | DebugCallbackContext* pContext = reinterpret_cast<DebugCallbackContext*>(context); |
| 1726 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1727 | VLOG(jdwp) << StringPrintf(" %2zd: %d(%d) '%s' '%s' '%s' actual slot=%d mangled slot=%d", |
| 1728 | pContext->variable_count, startAddress, endAddress - startAddress, |
| 1729 | name, descriptor, signature, slot, |
| 1730 | MangleSlot(slot, pContext->method)); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1731 | |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1732 | slot = MangleSlot(slot, pContext->method); |
Elliott Hughes | 68fdbd0 | 2011-11-29 19:22:47 -0800 | [diff] [blame] | 1733 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1734 | expandBufAdd8BE(pContext->pReply, startAddress); |
| 1735 | expandBufAddUtf8String(pContext->pReply, name); |
| 1736 | expandBufAddUtf8String(pContext->pReply, descriptor); |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1737 | if (pContext->with_generic) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1738 | expandBufAddUtf8String(pContext->pReply, signature); |
| 1739 | } |
| 1740 | expandBufAdd4BE(pContext->pReply, endAddress - startAddress); |
| 1741 | expandBufAdd4BE(pContext->pReply, slot); |
| 1742 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1743 | ++pContext->variable_count; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1744 | } |
| 1745 | }; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1746 | mirror::ArtMethod* m = FromMethodId(method_id); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1747 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1748 | // arg_count considers doubles and longs to take 2 units. |
| 1749 | // variable_count considers everything to take 1 unit. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1750 | std::string shorty(m->GetShorty()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1751 | expandBufAdd4BE(pReply, mirror::ArtMethod::NumArgRegisters(shorty)); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1752 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1753 | // We don't know the total number of variables yet, so leave a blank and update it later. |
| 1754 | size_t variable_count_offset = expandBufGetLength(pReply); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1755 | expandBufAdd4BE(pReply, 0); |
| 1756 | |
| 1757 | DebugCallbackContext context; |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1758 | context.method = m; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1759 | context.pReply = pReply; |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1760 | context.variable_count = 0; |
| 1761 | context.with_generic = with_generic; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1762 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1763 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1764 | if (code_item != nullptr) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1765 | m->GetDexFile()->DecodeDebugInfo( |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1766 | code_item, m->IsStatic(), m->GetDexMethodIndex(), nullptr, DebugCallbackContext::Callback, |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1767 | &context); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1768 | } |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1769 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1770 | JDWP::Set4BE(expandBufGetBuffer(pReply) + variable_count_offset, context.variable_count); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1771 | } |
| 1772 | |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1773 | void Dbg::OutputMethodReturnValue(JDWP::MethodId method_id, const JValue* return_value, |
| 1774 | JDWP::ExpandBuf* pReply) { |
| 1775 | mirror::ArtMethod* m = FromMethodId(method_id); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1776 | JDWP::JdwpTag tag = BasicTagFromDescriptor(m->GetShorty()); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1777 | OutputJValue(tag, return_value, pReply); |
| 1778 | } |
| 1779 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 1780 | void Dbg::OutputFieldValue(JDWP::FieldId field_id, const JValue* field_value, |
| 1781 | JDWP::ExpandBuf* pReply) { |
| 1782 | mirror::ArtField* f = FromFieldId(field_id); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1783 | JDWP::JdwpTag tag = BasicTagFromDescriptor(f->GetTypeDescriptor()); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 1784 | OutputJValue(tag, field_value, pReply); |
| 1785 | } |
| 1786 | |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1787 | JDWP::JdwpError Dbg::GetBytecodes(JDWP::RefTypeId, JDWP::MethodId method_id, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1788 | std::vector<uint8_t>* bytecodes) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1789 | mirror::ArtMethod* m = FromMethodId(method_id); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1790 | if (m == nullptr) { |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1791 | return JDWP::ERR_INVALID_METHODID; |
| 1792 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1793 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1794 | size_t byte_count = code_item->insns_size_in_code_units_ * 2; |
| 1795 | const uint8_t* begin = reinterpret_cast<const uint8_t*>(code_item->insns_); |
| 1796 | const uint8_t* end = begin + byte_count; |
| 1797 | for (const uint8_t* p = begin; p != end; ++p) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1798 | bytecodes->push_back(*p); |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1799 | } |
| 1800 | return JDWP::ERR_NONE; |
| 1801 | } |
| 1802 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1803 | JDWP::JdwpTag Dbg::GetFieldBasicTag(JDWP::FieldId field_id) { |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1804 | return BasicTagFromDescriptor(FromFieldId(field_id)->GetTypeDescriptor()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1805 | } |
| 1806 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1807 | JDWP::JdwpTag Dbg::GetStaticFieldBasicTag(JDWP::FieldId field_id) { |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1808 | return BasicTagFromDescriptor(FromFieldId(field_id)->GetTypeDescriptor()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1809 | } |
| 1810 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1811 | static JDWP::JdwpError GetFieldValueImpl(JDWP::RefTypeId ref_type_id, JDWP::ObjectId object_id, |
| 1812 | JDWP::FieldId field_id, JDWP::ExpandBuf* pReply, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1813 | bool is_static) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1814 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1815 | JDWP::JdwpError error; |
| 1816 | mirror::Class* c = DecodeClass(ref_type_id, &error); |
| 1817 | if (ref_type_id != 0 && c == nullptr) { |
| 1818 | return error; |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1819 | } |
| 1820 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1821 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(object_id, &error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1822 | if ((!is_static && o == nullptr) || error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1823 | return JDWP::ERR_INVALID_OBJECT; |
| 1824 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1825 | mirror::ArtField* f = FromFieldId(field_id); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1826 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1827 | mirror::Class* receiver_class = c; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1828 | if (receiver_class == nullptr && o != nullptr) { |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1829 | receiver_class = o->GetClass(); |
| 1830 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1831 | // TODO: should we give up now if receiver_class is nullptr? |
| 1832 | if (receiver_class != nullptr && !f->GetDeclaringClass()->IsAssignableFrom(receiver_class)) { |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1833 | LOG(INFO) << "ERR_INVALID_FIELDID: " << PrettyField(f) << " " << PrettyClass(receiver_class); |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1834 | return JDWP::ERR_INVALID_FIELDID; |
| 1835 | } |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1836 | |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1837 | // The RI only enforces the static/non-static mismatch in one direction. |
| 1838 | // TODO: should we change the tests and check both? |
| 1839 | if (is_static) { |
| 1840 | if (!f->IsStatic()) { |
| 1841 | return JDWP::ERR_INVALID_FIELDID; |
| 1842 | } |
| 1843 | } else { |
| 1844 | if (f->IsStatic()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1845 | LOG(WARNING) << "Ignoring non-nullptr receiver for ObjectReference.SetValues on static field " |
| 1846 | << PrettyField(f); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1847 | } |
| 1848 | } |
jeffhao | 0dfbb7e | 2012-11-28 15:26:03 -0800 | [diff] [blame] | 1849 | if (f->IsStatic()) { |
| 1850 | o = f->GetDeclaringClass(); |
| 1851 | } |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1852 | |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1853 | JDWP::JdwpTag tag = BasicTagFromDescriptor(f->GetTypeDescriptor()); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1854 | JValue field_value; |
| 1855 | if (tag == JDWP::JT_VOID) { |
| 1856 | LOG(FATAL) << "Unknown tag: " << tag; |
| 1857 | } else if (!IsPrimitiveTag(tag)) { |
| 1858 | field_value.SetL(f->GetObject(o)); |
| 1859 | } else if (tag == JDWP::JT_DOUBLE || tag == JDWP::JT_LONG) { |
| 1860 | field_value.SetJ(f->Get64(o)); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1861 | } else { |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1862 | field_value.SetI(f->Get32(o)); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1863 | } |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1864 | Dbg::OutputJValue(tag, &field_value, pReply); |
| 1865 | |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1866 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1867 | } |
| 1868 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1869 | JDWP::JdwpError Dbg::GetFieldValue(JDWP::ObjectId object_id, JDWP::FieldId field_id, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1870 | JDWP::ExpandBuf* pReply) { |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1871 | return GetFieldValueImpl(0, object_id, field_id, pReply, false); |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1872 | } |
| 1873 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1874 | JDWP::JdwpError Dbg::GetStaticFieldValue(JDWP::RefTypeId ref_type_id, JDWP::FieldId field_id, |
| 1875 | JDWP::ExpandBuf* pReply) { |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1876 | return GetFieldValueImpl(ref_type_id, 0, field_id, pReply, true); |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1877 | } |
| 1878 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1879 | static JDWP::JdwpError SetFieldValueImpl(JDWP::ObjectId object_id, JDWP::FieldId field_id, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1880 | uint64_t value, int width, bool is_static) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1881 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1882 | JDWP::JdwpError error; |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1883 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(object_id, &error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1884 | if ((!is_static && o == nullptr) || error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1885 | return JDWP::ERR_INVALID_OBJECT; |
| 1886 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1887 | mirror::ArtField* f = FromFieldId(field_id); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1888 | |
| 1889 | // The RI only enforces the static/non-static mismatch in one direction. |
| 1890 | // TODO: should we change the tests and check both? |
| 1891 | if (is_static) { |
| 1892 | if (!f->IsStatic()) { |
| 1893 | return JDWP::ERR_INVALID_FIELDID; |
| 1894 | } |
| 1895 | } else { |
| 1896 | if (f->IsStatic()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1897 | LOG(WARNING) << "Ignoring non-nullptr receiver for ObjectReference.SetValues on static field " << PrettyField(f); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1898 | } |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1899 | } |
jeffhao | 0dfbb7e | 2012-11-28 15:26:03 -0800 | [diff] [blame] | 1900 | if (f->IsStatic()) { |
| 1901 | o = f->GetDeclaringClass(); |
| 1902 | } |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1903 | |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1904 | JDWP::JdwpTag tag = BasicTagFromDescriptor(f->GetTypeDescriptor()); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1905 | |
| 1906 | if (IsPrimitiveTag(tag)) { |
| 1907 | if (tag == JDWP::JT_DOUBLE || tag == JDWP::JT_LONG) { |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1908 | CHECK_EQ(width, 8); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1909 | // Debugging can't use transactional mode (runtime only). |
| 1910 | f->Set64<false>(o, value); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1911 | } else { |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1912 | CHECK_LE(width, 4); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1913 | // Debugging can't use transactional mode (runtime only). |
| 1914 | f->Set32<false>(o, value); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1915 | } |
| 1916 | } else { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1917 | mirror::Object* v = Dbg::GetObjectRegistry()->Get<mirror::Object*>(value, &error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1918 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1919 | return JDWP::ERR_INVALID_OBJECT; |
| 1920 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1921 | if (v != nullptr) { |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1922 | mirror::Class* field_type; |
| 1923 | { |
| 1924 | StackHandleScope<3> hs(Thread::Current()); |
| 1925 | HandleWrapper<mirror::Object> h_v(hs.NewHandleWrapper(&v)); |
| 1926 | HandleWrapper<mirror::ArtField> h_f(hs.NewHandleWrapper(&f)); |
| 1927 | HandleWrapper<mirror::Object> h_o(hs.NewHandleWrapper(&o)); |
Ian Rogers | 08f1f50 | 2014-12-02 15:04:37 -0800 | [diff] [blame] | 1928 | field_type = h_f->GetType(true); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1929 | } |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1930 | if (!field_type->IsAssignableFrom(v->GetClass())) { |
| 1931 | return JDWP::ERR_INVALID_OBJECT; |
| 1932 | } |
| 1933 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1934 | // Debugging can't use transactional mode (runtime only). |
| 1935 | f->SetObject<false>(o, v); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1936 | } |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1937 | |
| 1938 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1939 | } |
| 1940 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1941 | JDWP::JdwpError Dbg::SetFieldValue(JDWP::ObjectId object_id, JDWP::FieldId field_id, uint64_t value, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1942 | int width) { |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1943 | return SetFieldValueImpl(object_id, field_id, value, width, false); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1944 | } |
| 1945 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1946 | JDWP::JdwpError Dbg::SetStaticFieldValue(JDWP::FieldId field_id, uint64_t value, int width) { |
| 1947 | return SetFieldValueImpl(0, field_id, value, width, true); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1948 | } |
| 1949 | |
Sebastien Hertz | b0b0b49 | 2014-09-15 11:27:27 +0200 | [diff] [blame] | 1950 | JDWP::JdwpError Dbg::StringToUtf8(JDWP::ObjectId string_id, std::string* str) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1951 | JDWP::JdwpError error; |
Sebastien Hertz | b0b0b49 | 2014-09-15 11:27:27 +0200 | [diff] [blame] | 1952 | mirror::Object* obj = gRegistry->Get<mirror::Object*>(string_id, &error); |
| 1953 | if (error != JDWP::ERR_NONE) { |
| 1954 | return error; |
| 1955 | } |
| 1956 | if (obj == nullptr) { |
| 1957 | return JDWP::ERR_INVALID_OBJECT; |
| 1958 | } |
| 1959 | { |
| 1960 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1961 | mirror::Class* java_lang_String = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_String); |
| 1962 | if (!java_lang_String->IsAssignableFrom(obj->GetClass())) { |
| 1963 | // This isn't a string. |
| 1964 | return JDWP::ERR_INVALID_STRING; |
| 1965 | } |
| 1966 | } |
| 1967 | *str = obj->AsString()->ToModifiedUtf8(); |
| 1968 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1969 | } |
| 1970 | |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1971 | void Dbg::OutputJValue(JDWP::JdwpTag tag, const JValue* return_value, JDWP::ExpandBuf* pReply) { |
| 1972 | if (IsPrimitiveTag(tag)) { |
| 1973 | expandBufAdd1(pReply, tag); |
| 1974 | if (tag == JDWP::JT_BOOLEAN || tag == JDWP::JT_BYTE) { |
| 1975 | expandBufAdd1(pReply, return_value->GetI()); |
| 1976 | } else if (tag == JDWP::JT_CHAR || tag == JDWP::JT_SHORT) { |
| 1977 | expandBufAdd2BE(pReply, return_value->GetI()); |
| 1978 | } else if (tag == JDWP::JT_FLOAT || tag == JDWP::JT_INT) { |
| 1979 | expandBufAdd4BE(pReply, return_value->GetI()); |
| 1980 | } else if (tag == JDWP::JT_DOUBLE || tag == JDWP::JT_LONG) { |
| 1981 | expandBufAdd8BE(pReply, return_value->GetJ()); |
| 1982 | } else { |
| 1983 | CHECK_EQ(tag, JDWP::JT_VOID); |
| 1984 | } |
| 1985 | } else { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1986 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1987 | mirror::Object* value = return_value->GetL(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1988 | expandBufAdd1(pReply, TagFromObject(soa, value)); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1989 | expandBufAddObjectId(pReply, gRegistry->Add(value)); |
| 1990 | } |
| 1991 | } |
| 1992 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1993 | JDWP::JdwpError Dbg::GetThreadName(JDWP::ObjectId thread_id, std::string* name) { |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 1994 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1995 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1996 | JDWP::JdwpError error; |
| 1997 | Thread* thread = DecodeThread(soa, thread_id, &error); |
| 1998 | UNUSED(thread); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1999 | if (error != JDWP::ERR_NONE && error != JDWP::ERR_THREAD_NOT_ALIVE) { |
| 2000 | return error; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 2001 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2002 | |
| 2003 | // We still need to report the zombie threads' names, so we can't just call Thread::GetThreadName. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2004 | mirror::Object* thread_object = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 2005 | CHECK(thread_object != nullptr) << error; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2006 | mirror::ArtField* java_lang_Thread_name_field = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2007 | soa.DecodeField(WellKnownClasses::java_lang_Thread_name); |
| 2008 | mirror::String* s = |
| 2009 | reinterpret_cast<mirror::String*>(java_lang_Thread_name_field->GetObject(thread_object)); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2010 | if (s != nullptr) { |
| 2011 | *name = s->ToModifiedUtf8(); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2012 | } |
| 2013 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2014 | } |
| 2015 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2016 | JDWP::JdwpError Dbg::GetThreadGroup(JDWP::ObjectId thread_id, JDWP::ExpandBuf* pReply) { |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2017 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2018 | JDWP::JdwpError error; |
| 2019 | mirror::Object* thread_object = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 2020 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2021 | return JDWP::ERR_INVALID_OBJECT; |
| 2022 | } |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 2023 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Debugger: GetThreadGroup"); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2024 | // Okay, so it's an object, but is it actually a thread? |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 2025 | { |
| 2026 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2027 | Thread* thread = DecodeThread(soa, thread_id, &error); |
| 2028 | UNUSED(thread); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 2029 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2030 | if (error == JDWP::ERR_THREAD_NOT_ALIVE) { |
| 2031 | // Zombie threads are in the null group. |
| 2032 | expandBufAddObjectId(pReply, JDWP::ObjectId(0)); |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 2033 | error = JDWP::ERR_NONE; |
| 2034 | } else if (error == JDWP::ERR_NONE) { |
| 2035 | mirror::Class* c = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread); |
| 2036 | CHECK(c != nullptr); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2037 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_group); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 2038 | CHECK(f != nullptr); |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 2039 | mirror::Object* group = f->GetObject(thread_object); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 2040 | CHECK(group != nullptr); |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 2041 | JDWP::ObjectId thread_group_id = gRegistry->Add(group); |
| 2042 | expandBufAddObjectId(pReply, thread_group_id); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2043 | } |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 2044 | return error; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2045 | } |
| 2046 | |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2047 | static mirror::Object* DecodeThreadGroup(ScopedObjectAccessUnchecked& soa, |
| 2048 | JDWP::ObjectId thread_group_id, JDWP::JdwpError* error) |
| 2049 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2050 | mirror::Object* thread_group = Dbg::GetObjectRegistry()->Get<mirror::Object*>(thread_group_id, |
| 2051 | error); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2052 | if (*error != JDWP::ERR_NONE) { |
| 2053 | return nullptr; |
| 2054 | } |
| 2055 | if (thread_group == nullptr) { |
| 2056 | *error = JDWP::ERR_INVALID_OBJECT; |
| 2057 | return nullptr; |
| 2058 | } |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 2059 | mirror::Class* c = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ThreadGroup); |
| 2060 | CHECK(c != nullptr); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2061 | if (!c->IsAssignableFrom(thread_group->GetClass())) { |
| 2062 | // This is not a java.lang.ThreadGroup. |
| 2063 | *error = JDWP::ERR_INVALID_THREAD_GROUP; |
| 2064 | return nullptr; |
| 2065 | } |
| 2066 | *error = JDWP::ERR_NONE; |
| 2067 | return thread_group; |
| 2068 | } |
| 2069 | |
| 2070 | JDWP::JdwpError Dbg::GetThreadGroupName(JDWP::ObjectId thread_group_id, JDWP::ExpandBuf* pReply) { |
| 2071 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 2072 | JDWP::JdwpError error; |
| 2073 | mirror::Object* thread_group = DecodeThreadGroup(soa, thread_group_id, &error); |
| 2074 | if (error != JDWP::ERR_NONE) { |
| 2075 | return error; |
| 2076 | } |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 2077 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Debugger: GetThreadGroupName"); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2078 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2079 | CHECK(f != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2080 | mirror::String* s = reinterpret_cast<mirror::String*>(f->GetObject(thread_group)); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2081 | |
| 2082 | std::string thread_group_name(s->ToModifiedUtf8()); |
| 2083 | expandBufAddUtf8String(pReply, thread_group_name); |
| 2084 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2085 | } |
| 2086 | |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2087 | JDWP::JdwpError Dbg::GetThreadGroupParent(JDWP::ObjectId thread_group_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 2088 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2089 | JDWP::JdwpError error; |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2090 | mirror::Object* thread_group = DecodeThreadGroup(soa, thread_group_id, &error); |
| 2091 | if (error != JDWP::ERR_NONE) { |
| 2092 | return error; |
| 2093 | } |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 2094 | mirror::Object* parent; |
| 2095 | { |
| 2096 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Debugger: GetThreadGroupParent"); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2097 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_parent); |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 2098 | CHECK(f != nullptr); |
| 2099 | parent = f->GetObject(thread_group); |
| 2100 | } |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2101 | JDWP::ObjectId parent_group_id = gRegistry->Add(parent); |
| 2102 | expandBufAddObjectId(pReply, parent_group_id); |
| 2103 | return JDWP::ERR_NONE; |
| 2104 | } |
| 2105 | |
| 2106 | static void GetChildThreadGroups(ScopedObjectAccessUnchecked& soa, mirror::Object* thread_group, |
| 2107 | std::vector<JDWP::ObjectId>* child_thread_group_ids) |
| 2108 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2109 | CHECK(thread_group != nullptr); |
| 2110 | |
| 2111 | // Get the ArrayList<ThreadGroup> "groups" out of this thread group... |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2112 | mirror::ArtField* groups_field = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_groups); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2113 | mirror::Object* groups_array_list = groups_field->GetObject(thread_group); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2114 | { |
| 2115 | // The "groups" field is declared as a java.util.List: check it really is |
| 2116 | // an instance of java.util.ArrayList. |
| 2117 | CHECK(groups_array_list != nullptr); |
| 2118 | mirror::Class* java_util_ArrayList_class = |
| 2119 | soa.Decode<mirror::Class*>(WellKnownClasses::java_util_ArrayList); |
| 2120 | CHECK(groups_array_list->InstanceOf(java_util_ArrayList_class)); |
| 2121 | } |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2122 | |
| 2123 | // Get the array and size out of the ArrayList<ThreadGroup>... |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2124 | mirror::ArtField* array_field = soa.DecodeField(WellKnownClasses::java_util_ArrayList_array); |
| 2125 | mirror::ArtField* size_field = soa.DecodeField(WellKnownClasses::java_util_ArrayList_size); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2126 | mirror::ObjectArray<mirror::Object>* groups_array = |
| 2127 | array_field->GetObject(groups_array_list)->AsObjectArray<mirror::Object>(); |
| 2128 | const int32_t size = size_field->GetInt(groups_array_list); |
| 2129 | |
| 2130 | // Copy the first 'size' elements out of the array into the result. |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2131 | ObjectRegistry* registry = Dbg::GetObjectRegistry(); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2132 | for (int32_t i = 0; i < size; ++i) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2133 | child_thread_group_ids->push_back(registry->Add(groups_array->Get(i))); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2134 | } |
| 2135 | } |
| 2136 | |
| 2137 | JDWP::JdwpError Dbg::GetThreadGroupChildren(JDWP::ObjectId thread_group_id, |
| 2138 | JDWP::ExpandBuf* pReply) { |
| 2139 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 2140 | JDWP::JdwpError error; |
| 2141 | mirror::Object* thread_group = DecodeThreadGroup(soa, thread_group_id, &error); |
| 2142 | if (error != JDWP::ERR_NONE) { |
| 2143 | return error; |
| 2144 | } |
| 2145 | |
| 2146 | // Add child threads. |
| 2147 | { |
| 2148 | std::vector<JDWP::ObjectId> child_thread_ids; |
| 2149 | GetThreads(thread_group, &child_thread_ids); |
| 2150 | expandBufAdd4BE(pReply, child_thread_ids.size()); |
| 2151 | for (JDWP::ObjectId child_thread_id : child_thread_ids) { |
| 2152 | expandBufAddObjectId(pReply, child_thread_id); |
| 2153 | } |
| 2154 | } |
| 2155 | |
| 2156 | // Add child thread groups. |
| 2157 | { |
| 2158 | std::vector<JDWP::ObjectId> child_thread_groups_ids; |
| 2159 | GetChildThreadGroups(soa, thread_group, &child_thread_groups_ids); |
| 2160 | expandBufAdd4BE(pReply, child_thread_groups_ids.size()); |
| 2161 | for (JDWP::ObjectId child_thread_group_id : child_thread_groups_ids) { |
| 2162 | expandBufAddObjectId(pReply, child_thread_group_id); |
| 2163 | } |
| 2164 | } |
| 2165 | |
| 2166 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2167 | } |
| 2168 | |
| 2169 | JDWP::ObjectId Dbg::GetSystemThreadGroupId() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2170 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2171 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2172 | mirror::Object* group = f->GetObject(f->GetDeclaringClass()); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 2173 | return gRegistry->Add(group); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2174 | } |
| 2175 | |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2176 | JDWP::JdwpThreadStatus Dbg::ToJdwpThreadStatus(ThreadState state) { |
| 2177 | switch (state) { |
| 2178 | case kBlocked: |
| 2179 | return JDWP::TS_MONITOR; |
| 2180 | case kNative: |
| 2181 | case kRunnable: |
| 2182 | case kSuspended: |
| 2183 | return JDWP::TS_RUNNING; |
| 2184 | case kSleeping: |
| 2185 | return JDWP::TS_SLEEPING; |
| 2186 | case kStarting: |
| 2187 | case kTerminated: |
| 2188 | return JDWP::TS_ZOMBIE; |
| 2189 | case kTimedWaiting: |
Sebastien Hertz | bae182c | 2013-12-17 10:42:03 +0100 | [diff] [blame] | 2190 | case kWaitingForCheckPointsToRun: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2191 | case kWaitingForDebuggerSend: |
| 2192 | case kWaitingForDebuggerSuspension: |
| 2193 | case kWaitingForDebuggerToAttach: |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 2194 | case kWaitingForDeoptimization: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2195 | case kWaitingForGcToComplete: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2196 | case kWaitingForJniOnLoad: |
Sebastien Hertz | bae182c | 2013-12-17 10:42:03 +0100 | [diff] [blame] | 2197 | case kWaitingForMethodTracingStart: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2198 | case kWaitingForSignalCatcherOutput: |
| 2199 | case kWaitingInMainDebuggerLoop: |
| 2200 | case kWaitingInMainSignalCatcherLoop: |
| 2201 | case kWaitingPerformingGc: |
| 2202 | case kWaiting: |
| 2203 | return JDWP::TS_WAIT; |
| 2204 | // Don't add a 'default' here so the compiler can spot incompatible enum changes. |
| 2205 | } |
| 2206 | LOG(FATAL) << "Unknown thread state: " << state; |
| 2207 | return JDWP::TS_ZOMBIE; |
| 2208 | } |
| 2209 | |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 2210 | JDWP::JdwpError Dbg::GetThreadStatus(JDWP::ObjectId thread_id, JDWP::JdwpThreadStatus* pThreadStatus, |
| 2211 | JDWP::JdwpSuspendStatus* pSuspendStatus) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2212 | ScopedObjectAccess soa(Thread::Current()); |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 2213 | |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 2214 | *pSuspendStatus = JDWP::SUSPEND_STATUS_NOT_SUSPENDED; |
| 2215 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2216 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2217 | JDWP::JdwpError error; |
| 2218 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2219 | if (error != JDWP::ERR_NONE) { |
| 2220 | if (error == JDWP::ERR_THREAD_NOT_ALIVE) { |
| 2221 | *pThreadStatus = JDWP::TS_ZOMBIE; |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2222 | return JDWP::ERR_NONE; |
| 2223 | } |
| 2224 | return error; |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 2225 | } |
| 2226 | |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 2227 | if (IsSuspendedForDebugger(soa, thread)) { |
| 2228 | *pSuspendStatus = JDWP::SUSPEND_STATUS_SUSPENDED; |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 2229 | } |
| 2230 | |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2231 | *pThreadStatus = ToJdwpThreadStatus(thread->GetState()); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2232 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2233 | } |
| 2234 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2235 | JDWP::JdwpError Dbg::GetThreadDebugSuspendCount(JDWP::ObjectId thread_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2236 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2237 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2238 | JDWP::JdwpError error; |
| 2239 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2240 | if (error != JDWP::ERR_NONE) { |
| 2241 | return error; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2242 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2243 | MutexLock mu2(soa.Self(), *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2244 | expandBufAdd4BE(pReply, thread->GetDebugSuspendCount()); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2245 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2246 | } |
| 2247 | |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 2248 | JDWP::JdwpError Dbg::Interrupt(JDWP::ObjectId thread_id) { |
| 2249 | ScopedObjectAccess soa(Thread::Current()); |
| 2250 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2251 | JDWP::JdwpError error; |
| 2252 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 2253 | if (error != JDWP::ERR_NONE) { |
| 2254 | return error; |
| 2255 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2256 | thread->Interrupt(soa.Self()); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 2257 | return JDWP::ERR_NONE; |
| 2258 | } |
| 2259 | |
Sebastien Hertz | 070f732 | 2014-09-09 12:08:49 +0200 | [diff] [blame] | 2260 | static bool IsInDesiredThreadGroup(ScopedObjectAccessUnchecked& soa, |
| 2261 | mirror::Object* desired_thread_group, mirror::Object* peer) |
| 2262 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2263 | // Do we want threads from all thread groups? |
| 2264 | if (desired_thread_group == nullptr) { |
| 2265 | return true; |
| 2266 | } |
| 2267 | mirror::ArtField* thread_group_field = soa.DecodeField(WellKnownClasses::java_lang_Thread_group); |
| 2268 | DCHECK(thread_group_field != nullptr); |
| 2269 | mirror::Object* group = thread_group_field->GetObject(peer); |
| 2270 | return (group == desired_thread_group); |
| 2271 | } |
| 2272 | |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2273 | void Dbg::GetThreads(mirror::Object* thread_group, std::vector<JDWP::ObjectId>* thread_ids) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2274 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 070f732 | 2014-09-09 12:08:49 +0200 | [diff] [blame] | 2275 | std::list<Thread*> all_threads_list; |
| 2276 | { |
| 2277 | MutexLock mu(Thread::Current(), *Locks::thread_list_lock_); |
| 2278 | all_threads_list = Runtime::Current()->GetThreadList()->GetList(); |
| 2279 | } |
| 2280 | for (Thread* t : all_threads_list) { |
| 2281 | if (t == Dbg::GetDebugThread()) { |
| 2282 | // Skip the JDWP thread. Some debuggers get bent out of shape when they can't suspend and |
| 2283 | // query all threads, so it's easier if we just don't tell them about this thread. |
| 2284 | continue; |
| 2285 | } |
| 2286 | if (t->IsStillStarting()) { |
| 2287 | // This thread is being started (and has been registered in the thread list). However, it is |
| 2288 | // not completely started yet so we must ignore it. |
| 2289 | continue; |
| 2290 | } |
| 2291 | mirror::Object* peer = t->GetPeer(); |
| 2292 | if (peer == nullptr) { |
| 2293 | // peer might be NULL if the thread is still starting up. We can't tell the debugger about |
| 2294 | // this thread yet. |
| 2295 | // TODO: if we identified threads to the debugger by their Thread* |
| 2296 | // rather than their peer's mirror::Object*, we could fix this. |
| 2297 | // Doing so might help us report ZOMBIE threads too. |
| 2298 | continue; |
| 2299 | } |
| 2300 | if (IsInDesiredThreadGroup(soa, thread_group, peer)) { |
| 2301 | thread_ids->push_back(gRegistry->Add(peer)); |
| 2302 | } |
| 2303 | } |
Elliott Hughes | caf7654 | 2012-06-28 16:08:22 -0700 | [diff] [blame] | 2304 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 2305 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2306 | static int GetStackDepth(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2307 | struct CountStackDepthVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2308 | explicit CountStackDepthVisitor(Thread* thread_in) |
| 2309 | : StackVisitor(thread_in, nullptr), depth(0) {} |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2310 | |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 2311 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2312 | // annotalysis. |
| 2313 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2314 | if (!GetMethod()->IsRuntimeMethod()) { |
Elliott Hughes | f8a2df7 | 2011-12-01 12:19:54 -0800 | [diff] [blame] | 2315 | ++depth; |
| 2316 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2317 | return true; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 2318 | } |
| 2319 | size_t depth; |
| 2320 | }; |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 2321 | |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2322 | CountStackDepthVisitor visitor(thread); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2323 | visitor.WalkStack(); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 2324 | return visitor.depth; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2325 | } |
| 2326 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2327 | JDWP::JdwpError Dbg::GetThreadFrameCount(JDWP::ObjectId thread_id, size_t* result) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2328 | ScopedObjectAccess soa(Thread::Current()); |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 2329 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2330 | JDWP::JdwpError error; |
| 2331 | *result = 0; |
| 2332 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2333 | if (error != JDWP::ERR_NONE) { |
| 2334 | return error; |
| 2335 | } |
Elliott Hughes | f15f4a0 | 2013-01-09 10:09:38 -0800 | [diff] [blame] | 2336 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 2337 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 2338 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2339 | *result = GetStackDepth(thread); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2340 | return JDWP::ERR_NONE; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2341 | } |
| 2342 | |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 2343 | JDWP::JdwpError Dbg::GetThreadFrames(JDWP::ObjectId thread_id, size_t start_frame, |
| 2344 | size_t frame_count, JDWP::ExpandBuf* buf) { |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2345 | class GetFrameVisitor : public StackVisitor { |
| 2346 | public: |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2347 | GetFrameVisitor(Thread* thread, size_t start_frame_in, size_t frame_count_in, |
| 2348 | JDWP::ExpandBuf* buf_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2349 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2350 | : StackVisitor(thread, nullptr), depth_(0), |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2351 | start_frame_(start_frame_in), frame_count_(frame_count_in), buf_(buf_in) { |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2352 | expandBufAdd4BE(buf_, frame_count_); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2353 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2354 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2355 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2356 | // annotalysis. |
| 2357 | virtual bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2358 | if (GetMethod()->IsRuntimeMethod()) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 2359 | return true; // The debugger can't do anything useful with a frame that has no Method*. |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2360 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2361 | if (depth_ >= start_frame_ + frame_count_) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2362 | return false; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2363 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2364 | if (depth_ >= start_frame_) { |
| 2365 | JDWP::FrameId frame_id(GetFrameId()); |
| 2366 | JDWP::JdwpLocation location; |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2367 | SetJdwpLocation(&location, GetMethod(), GetDexPc()); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2368 | VLOG(jdwp) << StringPrintf(" Frame %3zd: id=%3" PRIu64 " ", depth_, frame_id) << location; |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2369 | expandBufAdd8BE(buf_, frame_id); |
| 2370 | expandBufAddLocation(buf_, location); |
| 2371 | } |
| 2372 | ++depth_; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2373 | return true; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2374 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2375 | |
| 2376 | private: |
| 2377 | size_t depth_; |
| 2378 | const size_t start_frame_; |
| 2379 | const size_t frame_count_; |
| 2380 | JDWP::ExpandBuf* buf_; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2381 | }; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2382 | |
| 2383 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 2384 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2385 | JDWP::JdwpError error; |
| 2386 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2387 | if (error != JDWP::ERR_NONE) { |
| 2388 | return error; |
| 2389 | } |
Elliott Hughes | f15f4a0 | 2013-01-09 10:09:38 -0800 | [diff] [blame] | 2390 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 2391 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 2392 | } |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2393 | GetFrameVisitor visitor(thread, start_frame, frame_count, buf); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2394 | visitor.WalkStack(); |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2395 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2396 | } |
| 2397 | |
| 2398 | JDWP::ObjectId Dbg::GetThreadSelfId() { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2399 | return GetThreadId(Thread::Current()); |
| 2400 | } |
| 2401 | |
| 2402 | JDWP::ObjectId Dbg::GetThreadId(Thread* thread) { |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 2403 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2404 | return gRegistry->Add(thread->GetPeer()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2405 | } |
| 2406 | |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 2407 | void Dbg::SuspendVM() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2408 | Runtime::Current()->GetThreadList()->SuspendAllForDebugger(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2409 | } |
| 2410 | |
| 2411 | void Dbg::ResumeVM() { |
Sebastien Hertz | 253fa55 | 2014-10-14 17:27:15 +0200 | [diff] [blame] | 2412 | Runtime::Current()->GetThreadList()->ResumeAllForDebugger(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2413 | } |
| 2414 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2415 | JDWP::JdwpError Dbg::SuspendThread(JDWP::ObjectId thread_id, bool request_suspension) { |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 2416 | Thread* self = Thread::Current(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2417 | ScopedLocalRef<jobject> peer(self->GetJniEnv(), nullptr); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2418 | { |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 2419 | ScopedObjectAccess soa(self); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2420 | JDWP::JdwpError error; |
| 2421 | peer.reset(soa.AddLocalReference<jobject>(gRegistry->Get<mirror::Object*>(thread_id, &error))); |
Elliott Hughes | 4e23531 | 2011-12-02 11:34:15 -0800 | [diff] [blame] | 2422 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2423 | if (peer.get() == nullptr) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2424 | return JDWP::ERR_THREAD_NOT_ALIVE; |
| 2425 | } |
Ian Rogers | 4ad5cd3 | 2014-11-11 23:08:07 -0800 | [diff] [blame] | 2426 | // Suspend thread to build stack trace. |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 2427 | bool timed_out; |
Brian Carlstrom | ba32de4 | 2014-08-27 23:43:46 -0700 | [diff] [blame] | 2428 | ThreadList* thread_list = Runtime::Current()->GetThreadList(); |
| 2429 | Thread* thread = thread_list->SuspendThreadByPeer(peer.get(), request_suspension, true, |
| 2430 | &timed_out); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2431 | if (thread != nullptr) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2432 | return JDWP::ERR_NONE; |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 2433 | } else if (timed_out) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2434 | return JDWP::ERR_INTERNAL; |
| 2435 | } else { |
| 2436 | return JDWP::ERR_THREAD_NOT_ALIVE; |
| 2437 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2438 | } |
| 2439 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2440 | void Dbg::ResumeThread(JDWP::ObjectId thread_id) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2441 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2442 | JDWP::JdwpError error; |
| 2443 | mirror::Object* peer = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 2444 | CHECK(peer != nullptr) << error; |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 2445 | Thread* thread; |
| 2446 | { |
| 2447 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
| 2448 | thread = Thread::FromManagedThread(soa, peer); |
| 2449 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2450 | if (thread == nullptr) { |
Elliott Hughes | 4e23531 | 2011-12-02 11:34:15 -0800 | [diff] [blame] | 2451 | LOG(WARNING) << "No such thread for resume: " << peer; |
| 2452 | return; |
| 2453 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2454 | bool needs_resume; |
| 2455 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2456 | MutexLock mu2(soa.Self(), *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2457 | needs_resume = thread->GetSuspendCount() > 0; |
| 2458 | } |
| 2459 | if (needs_resume) { |
Elliott Hughes | 546b986 | 2012-06-20 16:06:13 -0700 | [diff] [blame] | 2460 | Runtime::Current()->GetThreadList()->Resume(thread, true); |
| 2461 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2462 | } |
| 2463 | |
| 2464 | void Dbg::SuspendSelf() { |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 2465 | Runtime::Current()->GetThreadList()->SuspendSelfForDebugger(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2466 | } |
| 2467 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2468 | struct GetThisVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2469 | GetThisVisitor(Thread* thread, Context* context, JDWP::FrameId frame_id_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2470 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2471 | : StackVisitor(thread, context), this_object(nullptr), frame_id(frame_id_in) {} |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2472 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2473 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2474 | // annotalysis. |
| 2475 | virtual bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2476 | if (frame_id != GetFrameId()) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2477 | return true; // continue |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2478 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2479 | this_object = GetThisObject(); |
| 2480 | return false; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2481 | } |
Elliott Hughes | 86b0010 | 2011-12-05 17:54:26 -0800 | [diff] [blame] | 2482 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2483 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2484 | mirror::Object* this_object; |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2485 | JDWP::FrameId frame_id; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2486 | }; |
| 2487 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2488 | JDWP::JdwpError Dbg::GetThisObject(JDWP::ObjectId thread_id, JDWP::FrameId frame_id, |
| 2489 | JDWP::ObjectId* result) { |
| 2490 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 2491 | Thread* thread; |
| 2492 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2493 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2494 | JDWP::JdwpError error; |
| 2495 | thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2496 | if (error != JDWP::ERR_NONE) { |
| 2497 | return error; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2498 | } |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 2499 | if (!IsSuspendedForDebugger(soa, thread)) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2500 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 2501 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2502 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2503 | std::unique_ptr<Context> context(Context::Create()); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2504 | GetThisVisitor visitor(thread, context.get(), frame_id); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2505 | visitor.WalkStack(); |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2506 | *result = gRegistry->Add(visitor.this_object); |
| 2507 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2508 | } |
| 2509 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2510 | // Walks the stack until we find the frame with the given FrameId. |
| 2511 | class FindFrameVisitor FINAL : public StackVisitor { |
| 2512 | public: |
| 2513 | FindFrameVisitor(Thread* thread, Context* context, JDWP::FrameId frame_id) |
| 2514 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
| 2515 | : StackVisitor(thread, context), frame_id_(frame_id), error_(JDWP::ERR_INVALID_FRAMEID) {} |
Ian Rogers | ca19066 | 2012-06-26 15:45:57 -0700 | [diff] [blame] | 2516 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2517 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2518 | // annotalysis. |
| 2519 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
| 2520 | if (GetFrameId() != frame_id_) { |
| 2521 | return true; // Not our frame, carry on. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2522 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2523 | mirror::ArtMethod* m = GetMethod(); |
| 2524 | if (m->IsNative()) { |
| 2525 | // We can't read/write local value from/into native method. |
| 2526 | error_ = JDWP::ERR_OPAQUE_FRAME; |
| 2527 | } else { |
| 2528 | // We found our frame. |
| 2529 | error_ = JDWP::ERR_NONE; |
| 2530 | } |
| 2531 | return false; |
| 2532 | } |
| 2533 | |
| 2534 | JDWP::JdwpError GetError() const { |
| 2535 | return error_; |
| 2536 | } |
| 2537 | |
| 2538 | private: |
| 2539 | const JDWP::FrameId frame_id_; |
| 2540 | JDWP::JdwpError error_; |
| 2541 | }; |
| 2542 | |
| 2543 | JDWP::JdwpError Dbg::GetLocalValues(JDWP::Request* request, JDWP::ExpandBuf* pReply) { |
| 2544 | JDWP::ObjectId thread_id = request->ReadThreadId(); |
| 2545 | JDWP::FrameId frame_id = request->ReadFrameId(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2546 | |
| 2547 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2548 | Thread* thread; |
| 2549 | { |
| 2550 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
| 2551 | JDWP::JdwpError error; |
| 2552 | thread = DecodeThread(soa, thread_id, &error); |
| 2553 | if (error != JDWP::ERR_NONE) { |
| 2554 | return error; |
| 2555 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2556 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2557 | // Find the frame with the given frame_id. |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2558 | std::unique_ptr<Context> context(Context::Create()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2559 | FindFrameVisitor visitor(thread, context.get(), frame_id); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2560 | visitor.WalkStack(); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2561 | if (visitor.GetError() != JDWP::ERR_NONE) { |
| 2562 | return visitor.GetError(); |
| 2563 | } |
| 2564 | |
| 2565 | // Read the values from visitor's context. |
| 2566 | int32_t slot_count = request->ReadSigned32("slot count"); |
| 2567 | expandBufAdd4BE(pReply, slot_count); /* "int values" */ |
| 2568 | for (int32_t i = 0; i < slot_count; ++i) { |
| 2569 | uint32_t slot = request->ReadUnsigned32("slot"); |
| 2570 | JDWP::JdwpTag reqSigByte = request->ReadTag(); |
| 2571 | |
| 2572 | VLOG(jdwp) << " --> slot " << slot << " " << reqSigByte; |
| 2573 | |
| 2574 | size_t width = Dbg::GetTagWidth(reqSigByte); |
Sebastien Hertz | 7d95565 | 2014-10-22 10:57:10 +0200 | [diff] [blame] | 2575 | uint8_t* ptr = expandBufAddSpace(pReply, width + 1); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2576 | JDWP::JdwpError error = Dbg::GetLocalValue(visitor, soa, slot, reqSigByte, ptr, width); |
| 2577 | if (error != JDWP::ERR_NONE) { |
| 2578 | return error; |
| 2579 | } |
| 2580 | } |
| 2581 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2582 | } |
| 2583 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2584 | JDWP::JdwpError Dbg::GetLocalValue(const StackVisitor& visitor, ScopedObjectAccessUnchecked& soa, |
| 2585 | int slot, JDWP::JdwpTag tag, uint8_t* buf, size_t width) { |
| 2586 | mirror::ArtMethod* m = visitor.GetMethod(); |
| 2587 | uint16_t reg = DemangleSlot(slot, m); |
| 2588 | // TODO: check that the tag is compatible with the actual type of the slot! |
| 2589 | // TODO: check slot is valid for this method or return INVALID_SLOT error. |
| 2590 | constexpr JDWP::JdwpError kFailureErrorCode = JDWP::ERR_ABSENT_INFORMATION; |
| 2591 | switch (tag) { |
| 2592 | case JDWP::JT_BOOLEAN: { |
| 2593 | CHECK_EQ(width, 1U); |
| 2594 | uint32_t intVal; |
| 2595 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2596 | VLOG(jdwp) << "get boolean local " << reg << " = " << intVal; |
| 2597 | JDWP::Set1(buf + 1, intVal != 0); |
| 2598 | } else { |
| 2599 | VLOG(jdwp) << "failed to get boolean local " << reg; |
| 2600 | return kFailureErrorCode; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2601 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2602 | break; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2603 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2604 | case JDWP::JT_BYTE: { |
| 2605 | CHECK_EQ(width, 1U); |
| 2606 | uint32_t intVal; |
| 2607 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2608 | VLOG(jdwp) << "get byte local " << reg << " = " << intVal; |
| 2609 | JDWP::Set1(buf + 1, intVal); |
| 2610 | } else { |
| 2611 | VLOG(jdwp) << "failed to get byte local " << reg; |
| 2612 | return kFailureErrorCode; |
| 2613 | } |
| 2614 | break; |
| 2615 | } |
| 2616 | case JDWP::JT_SHORT: |
| 2617 | case JDWP::JT_CHAR: { |
| 2618 | CHECK_EQ(width, 2U); |
| 2619 | uint32_t intVal; |
| 2620 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2621 | VLOG(jdwp) << "get short/char local " << reg << " = " << intVal; |
| 2622 | JDWP::Set2BE(buf + 1, intVal); |
| 2623 | } else { |
| 2624 | VLOG(jdwp) << "failed to get short/char local " << reg; |
| 2625 | return kFailureErrorCode; |
| 2626 | } |
| 2627 | break; |
| 2628 | } |
| 2629 | case JDWP::JT_INT: { |
| 2630 | CHECK_EQ(width, 4U); |
| 2631 | uint32_t intVal; |
| 2632 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2633 | VLOG(jdwp) << "get int local " << reg << " = " << intVal; |
| 2634 | JDWP::Set4BE(buf + 1, intVal); |
| 2635 | } else { |
| 2636 | VLOG(jdwp) << "failed to get int local " << reg; |
| 2637 | return kFailureErrorCode; |
| 2638 | } |
| 2639 | break; |
| 2640 | } |
| 2641 | case JDWP::JT_FLOAT: { |
| 2642 | CHECK_EQ(width, 4U); |
| 2643 | uint32_t intVal; |
| 2644 | if (visitor.GetVReg(m, reg, kFloatVReg, &intVal)) { |
| 2645 | VLOG(jdwp) << "get float local " << reg << " = " << intVal; |
| 2646 | JDWP::Set4BE(buf + 1, intVal); |
| 2647 | } else { |
| 2648 | VLOG(jdwp) << "failed to get float local " << reg; |
| 2649 | return kFailureErrorCode; |
| 2650 | } |
| 2651 | break; |
| 2652 | } |
| 2653 | case JDWP::JT_ARRAY: |
| 2654 | case JDWP::JT_CLASS_LOADER: |
| 2655 | case JDWP::JT_CLASS_OBJECT: |
| 2656 | case JDWP::JT_OBJECT: |
| 2657 | case JDWP::JT_STRING: |
| 2658 | case JDWP::JT_THREAD: |
| 2659 | case JDWP::JT_THREAD_GROUP: { |
| 2660 | CHECK_EQ(width, sizeof(JDWP::ObjectId)); |
| 2661 | uint32_t intVal; |
| 2662 | if (visitor.GetVReg(m, reg, kReferenceVReg, &intVal)) { |
| 2663 | mirror::Object* o = reinterpret_cast<mirror::Object*>(intVal); |
| 2664 | VLOG(jdwp) << "get " << tag << " object local " << reg << " = " << o; |
| 2665 | if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(o)) { |
| 2666 | LOG(FATAL) << "Register " << reg << " expected to hold " << tag << " object: " << o; |
| 2667 | } |
| 2668 | tag = TagFromObject(soa, o); |
| 2669 | JDWP::SetObjectId(buf + 1, gRegistry->Add(o)); |
| 2670 | } else { |
| 2671 | VLOG(jdwp) << "failed to get " << tag << " object local " << reg; |
| 2672 | return kFailureErrorCode; |
| 2673 | } |
| 2674 | break; |
| 2675 | } |
| 2676 | case JDWP::JT_DOUBLE: { |
| 2677 | CHECK_EQ(width, 8U); |
| 2678 | uint64_t longVal; |
| 2679 | if (visitor.GetVRegPair(m, reg, kDoubleLoVReg, kDoubleHiVReg, &longVal)) { |
| 2680 | VLOG(jdwp) << "get double local " << reg << " = " << longVal; |
| 2681 | JDWP::Set8BE(buf + 1, longVal); |
| 2682 | } else { |
| 2683 | VLOG(jdwp) << "failed to get double local " << reg; |
| 2684 | return kFailureErrorCode; |
| 2685 | } |
| 2686 | break; |
| 2687 | } |
| 2688 | case JDWP::JT_LONG: { |
| 2689 | CHECK_EQ(width, 8U); |
| 2690 | uint64_t longVal; |
| 2691 | if (visitor.GetVRegPair(m, reg, kLongLoVReg, kLongHiVReg, &longVal)) { |
| 2692 | VLOG(jdwp) << "get long local " << reg << " = " << longVal; |
| 2693 | JDWP::Set8BE(buf + 1, longVal); |
| 2694 | } else { |
| 2695 | VLOG(jdwp) << "failed to get long local " << reg; |
| 2696 | return kFailureErrorCode; |
| 2697 | } |
| 2698 | break; |
| 2699 | } |
| 2700 | default: |
| 2701 | LOG(FATAL) << "Unknown tag " << tag; |
| 2702 | break; |
| 2703 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2704 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2705 | // Prepend tag, which may have been updated. |
| 2706 | JDWP::Set1(buf, tag); |
| 2707 | return JDWP::ERR_NONE; |
| 2708 | } |
| 2709 | |
| 2710 | JDWP::JdwpError Dbg::SetLocalValues(JDWP::Request* request) { |
| 2711 | JDWP::ObjectId thread_id = request->ReadThreadId(); |
| 2712 | JDWP::FrameId frame_id = request->ReadFrameId(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2713 | |
| 2714 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2715 | Thread* thread; |
| 2716 | { |
| 2717 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
| 2718 | JDWP::JdwpError error; |
| 2719 | thread = DecodeThread(soa, thread_id, &error); |
| 2720 | if (error != JDWP::ERR_NONE) { |
| 2721 | return error; |
| 2722 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2723 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2724 | // Find the frame with the given frame_id. |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2725 | std::unique_ptr<Context> context(Context::Create()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2726 | FindFrameVisitor visitor(thread, context.get(), frame_id); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2727 | visitor.WalkStack(); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2728 | if (visitor.GetError() != JDWP::ERR_NONE) { |
| 2729 | return visitor.GetError(); |
| 2730 | } |
| 2731 | |
| 2732 | // Writes the values into visitor's context. |
| 2733 | int32_t slot_count = request->ReadSigned32("slot count"); |
| 2734 | for (int32_t i = 0; i < slot_count; ++i) { |
| 2735 | uint32_t slot = request->ReadUnsigned32("slot"); |
| 2736 | JDWP::JdwpTag sigByte = request->ReadTag(); |
| 2737 | size_t width = Dbg::GetTagWidth(sigByte); |
| 2738 | uint64_t value = request->ReadValue(width); |
| 2739 | |
| 2740 | VLOG(jdwp) << " --> slot " << slot << " " << sigByte << " " << value; |
| 2741 | JDWP::JdwpError error = Dbg::SetLocalValue(visitor, slot, sigByte, value, width); |
| 2742 | if (error != JDWP::ERR_NONE) { |
| 2743 | return error; |
| 2744 | } |
| 2745 | } |
| 2746 | return JDWP::ERR_NONE; |
| 2747 | } |
| 2748 | |
| 2749 | JDWP::JdwpError Dbg::SetLocalValue(StackVisitor& visitor, int slot, JDWP::JdwpTag tag, |
| 2750 | uint64_t value, size_t width) { |
| 2751 | mirror::ArtMethod* m = visitor.GetMethod(); |
| 2752 | uint16_t reg = DemangleSlot(slot, m); |
| 2753 | // TODO: check that the tag is compatible with the actual type of the slot! |
| 2754 | // TODO: check slot is valid for this method or return INVALID_SLOT error. |
| 2755 | constexpr JDWP::JdwpError kFailureErrorCode = JDWP::ERR_ABSENT_INFORMATION; |
| 2756 | switch (tag) { |
| 2757 | case JDWP::JT_BOOLEAN: |
| 2758 | case JDWP::JT_BYTE: |
| 2759 | CHECK_EQ(width, 1U); |
| 2760 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kIntVReg)) { |
| 2761 | VLOG(jdwp) << "failed to set boolean/byte local " << reg << " = " |
| 2762 | << static_cast<uint32_t>(value); |
| 2763 | return kFailureErrorCode; |
| 2764 | } |
| 2765 | break; |
| 2766 | case JDWP::JT_SHORT: |
| 2767 | case JDWP::JT_CHAR: |
| 2768 | CHECK_EQ(width, 2U); |
| 2769 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kIntVReg)) { |
| 2770 | VLOG(jdwp) << "failed to set short/char local " << reg << " = " |
| 2771 | << static_cast<uint32_t>(value); |
| 2772 | return kFailureErrorCode; |
| 2773 | } |
| 2774 | break; |
| 2775 | case JDWP::JT_INT: |
| 2776 | CHECK_EQ(width, 4U); |
| 2777 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kIntVReg)) { |
| 2778 | VLOG(jdwp) << "failed to set int local " << reg << " = " |
| 2779 | << static_cast<uint32_t>(value); |
| 2780 | return kFailureErrorCode; |
| 2781 | } |
| 2782 | break; |
| 2783 | case JDWP::JT_FLOAT: |
| 2784 | CHECK_EQ(width, 4U); |
| 2785 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kFloatVReg)) { |
| 2786 | VLOG(jdwp) << "failed to set float local " << reg << " = " |
| 2787 | << static_cast<uint32_t>(value); |
| 2788 | return kFailureErrorCode; |
| 2789 | } |
| 2790 | break; |
| 2791 | case JDWP::JT_ARRAY: |
| 2792 | case JDWP::JT_CLASS_LOADER: |
| 2793 | case JDWP::JT_CLASS_OBJECT: |
| 2794 | case JDWP::JT_OBJECT: |
| 2795 | case JDWP::JT_STRING: |
| 2796 | case JDWP::JT_THREAD: |
| 2797 | case JDWP::JT_THREAD_GROUP: { |
| 2798 | CHECK_EQ(width, sizeof(JDWP::ObjectId)); |
| 2799 | JDWP::JdwpError error; |
| 2800 | mirror::Object* o = gRegistry->Get<mirror::Object*>(static_cast<JDWP::ObjectId>(value), |
| 2801 | &error); |
| 2802 | if (error != JDWP::ERR_NONE) { |
| 2803 | VLOG(jdwp) << tag << " object " << o << " is an invalid object"; |
| 2804 | return JDWP::ERR_INVALID_OBJECT; |
| 2805 | } else if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(reinterpret_cast<uintptr_t>(o)), |
| 2806 | kReferenceVReg)) { |
| 2807 | VLOG(jdwp) << "failed to set " << tag << " object local " << reg << " = " << o; |
| 2808 | return kFailureErrorCode; |
| 2809 | } |
| 2810 | break; |
| 2811 | } |
| 2812 | case JDWP::JT_DOUBLE: { |
| 2813 | CHECK_EQ(width, 8U); |
| 2814 | if (!visitor.SetVRegPair(m, reg, value, kDoubleLoVReg, kDoubleHiVReg)) { |
| 2815 | VLOG(jdwp) << "failed to set double local " << reg << " = " << value; |
| 2816 | return kFailureErrorCode; |
| 2817 | } |
| 2818 | break; |
| 2819 | } |
| 2820 | case JDWP::JT_LONG: { |
| 2821 | CHECK_EQ(width, 8U); |
| 2822 | if (!visitor.SetVRegPair(m, reg, value, kLongLoVReg, kLongHiVReg)) { |
| 2823 | VLOG(jdwp) << "failed to set double local " << reg << " = " << value; |
| 2824 | return kFailureErrorCode; |
| 2825 | } |
| 2826 | break; |
| 2827 | } |
| 2828 | default: |
| 2829 | LOG(FATAL) << "Unknown tag " << tag; |
| 2830 | break; |
| 2831 | } |
| 2832 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2833 | } |
| 2834 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2835 | static void SetEventLocation(JDWP::EventLocation* location, mirror::ArtMethod* m, uint32_t dex_pc) |
| 2836 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2837 | DCHECK(location != nullptr); |
| 2838 | if (m == nullptr) { |
| 2839 | memset(location, 0, sizeof(*location)); |
| 2840 | } else { |
| 2841 | location->method = m; |
| 2842 | location->dex_pc = (m->IsNative() || m->IsProxyMethod()) ? static_cast<uint32_t>(-1) : dex_pc; |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2843 | } |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2844 | } |
| 2845 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2846 | void Dbg::PostLocationEvent(mirror::ArtMethod* m, int dex_pc, mirror::Object* this_object, |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 2847 | int event_flags, const JValue* return_value) { |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2848 | if (!IsDebuggerActive()) { |
| 2849 | return; |
| 2850 | } |
| 2851 | DCHECK(m != nullptr); |
| 2852 | DCHECK_EQ(m->IsStatic(), this_object == nullptr); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2853 | JDWP::EventLocation location; |
| 2854 | SetEventLocation(&location, m, dex_pc); |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2855 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2856 | gJdwpState->PostLocationEvent(&location, this_object, event_flags, return_value); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2857 | } |
| 2858 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2859 | void Dbg::PostFieldAccessEvent(mirror::ArtMethod* m, int dex_pc, |
| 2860 | mirror::Object* this_object, mirror::ArtField* f) { |
| 2861 | if (!IsDebuggerActive()) { |
| 2862 | return; |
| 2863 | } |
| 2864 | DCHECK(m != nullptr); |
| 2865 | DCHECK(f != nullptr); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2866 | JDWP::EventLocation location; |
| 2867 | SetEventLocation(&location, m, dex_pc); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2868 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2869 | gJdwpState->PostFieldEvent(&location, f, this_object, nullptr, false); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2870 | } |
| 2871 | |
| 2872 | void Dbg::PostFieldModificationEvent(mirror::ArtMethod* m, int dex_pc, |
| 2873 | mirror::Object* this_object, mirror::ArtField* f, |
| 2874 | const JValue* field_value) { |
| 2875 | if (!IsDebuggerActive()) { |
| 2876 | return; |
| 2877 | } |
| 2878 | DCHECK(m != nullptr); |
| 2879 | DCHECK(f != nullptr); |
| 2880 | DCHECK(field_value != nullptr); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2881 | JDWP::EventLocation location; |
| 2882 | SetEventLocation(&location, m, dex_pc); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2883 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2884 | gJdwpState->PostFieldEvent(&location, f, this_object, field_value, true); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2885 | } |
| 2886 | |
| 2887 | void Dbg::PostException(const ThrowLocation& throw_location, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2888 | mirror::ArtMethod* catch_method, |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 2889 | uint32_t catch_dex_pc, mirror::Throwable* exception_object) { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2890 | if (!IsDebuggerActive()) { |
Ian Rogers | 0ad5bb8 | 2011-12-07 10:16:32 -0800 | [diff] [blame] | 2891 | return; |
| 2892 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2893 | JDWP::EventLocation exception_throw_location; |
| 2894 | SetEventLocation(&exception_throw_location, throw_location.GetMethod(), throw_location.GetDexPc()); |
| 2895 | JDWP::EventLocation exception_catch_location; |
| 2896 | SetEventLocation(&exception_catch_location, catch_method, catch_dex_pc); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 2897 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2898 | gJdwpState->PostException(&exception_throw_location, exception_object, &exception_catch_location, |
| 2899 | throw_location.GetThis()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2900 | } |
| 2901 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2902 | void Dbg::PostClassPrepare(mirror::Class* c) { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2903 | if (!IsDebuggerActive()) { |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 2904 | return; |
| 2905 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2906 | gJdwpState->PostClassPrepare(c); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2907 | } |
| 2908 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2909 | void Dbg::UpdateDebugger(Thread* thread, mirror::Object* this_object, |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 2910 | mirror::ArtMethod* m, uint32_t dex_pc, |
| 2911 | int event_flags, const JValue* return_value) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2912 | if (!IsDebuggerActive() || dex_pc == static_cast<uint32_t>(-2) /* fake method exit */) { |
Elliott Hughes | 2aa2e39 | 2012-02-17 17:15:43 -0800 | [diff] [blame] | 2913 | return; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2914 | } |
| 2915 | |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2916 | if (IsBreakpoint(m, dex_pc)) { |
| 2917 | event_flags |= kBreakpoint; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2918 | } |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2919 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2920 | // If the debugger is single-stepping one of our threads, check to |
| 2921 | // see if we're that thread and we've reached a step point. |
| 2922 | const SingleStepControl* single_step_control = thread->GetSingleStepControl(); |
| 2923 | DCHECK(single_step_control != nullptr); |
| 2924 | if (single_step_control->is_active) { |
| 2925 | CHECK(!m->IsNative()); |
| 2926 | if (single_step_control->step_depth == JDWP::SD_INTO) { |
| 2927 | // Step into method calls. We break when the line number |
| 2928 | // or method pointer changes. If we're in SS_MIN mode, we |
| 2929 | // always stop. |
| 2930 | if (single_step_control->method != m) { |
| 2931 | event_flags |= kSingleStep; |
| 2932 | VLOG(jdwp) << "SS new method"; |
| 2933 | } else if (single_step_control->step_size == JDWP::SS_MIN) { |
| 2934 | event_flags |= kSingleStep; |
| 2935 | VLOG(jdwp) << "SS new instruction"; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 2936 | } else if (single_step_control->ContainsDexPc(dex_pc)) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2937 | event_flags |= kSingleStep; |
| 2938 | VLOG(jdwp) << "SS new line"; |
| 2939 | } |
| 2940 | } else if (single_step_control->step_depth == JDWP::SD_OVER) { |
| 2941 | // Step over method calls. We break when the line number is |
| 2942 | // different and the frame depth is <= the original frame |
| 2943 | // depth. (We can't just compare on the method, because we |
| 2944 | // might get unrolled past it by an exception, and it's tricky |
| 2945 | // to identify recursion.) |
| 2946 | |
| 2947 | int stack_depth = GetStackDepth(thread); |
| 2948 | |
| 2949 | if (stack_depth < single_step_control->stack_depth) { |
| 2950 | // Popped up one or more frames, always trigger. |
| 2951 | event_flags |= kSingleStep; |
| 2952 | VLOG(jdwp) << "SS method pop"; |
| 2953 | } else if (stack_depth == single_step_control->stack_depth) { |
| 2954 | // Same depth, see if we moved. |
| 2955 | if (single_step_control->step_size == JDWP::SS_MIN) { |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2956 | event_flags |= kSingleStep; |
| 2957 | VLOG(jdwp) << "SS new instruction"; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 2958 | } else if (single_step_control->ContainsDexPc(dex_pc)) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2959 | event_flags |= kSingleStep; |
| 2960 | VLOG(jdwp) << "SS new line"; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2961 | } |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2962 | } |
| 2963 | } else { |
| 2964 | CHECK_EQ(single_step_control->step_depth, JDWP::SD_OUT); |
| 2965 | // Return from the current method. We break when the frame |
| 2966 | // depth pops up. |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2967 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2968 | // This differs from the "method exit" break in that it stops |
| 2969 | // with the PC at the next instruction in the returned-to |
| 2970 | // function, rather than the end of the returning function. |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2971 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2972 | int stack_depth = GetStackDepth(thread); |
| 2973 | if (stack_depth < single_step_control->stack_depth) { |
| 2974 | event_flags |= kSingleStep; |
| 2975 | VLOG(jdwp) << "SS method pop"; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2976 | } |
| 2977 | } |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2978 | } |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2979 | |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2980 | // If there's something interesting going on, see if it matches one |
| 2981 | // of the debugger filters. |
| 2982 | if (event_flags != 0) { |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 2983 | Dbg::PostLocationEvent(m, dex_pc, this_object, event_flags, return_value); |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2984 | } |
| 2985 | } |
| 2986 | |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2987 | size_t* Dbg::GetReferenceCounterForEvent(uint32_t instrumentation_event) { |
| 2988 | switch (instrumentation_event) { |
| 2989 | case instrumentation::Instrumentation::kMethodEntered: |
| 2990 | return &method_enter_event_ref_count_; |
| 2991 | case instrumentation::Instrumentation::kMethodExited: |
| 2992 | return &method_exit_event_ref_count_; |
| 2993 | case instrumentation::Instrumentation::kDexPcMoved: |
| 2994 | return &dex_pc_change_event_ref_count_; |
| 2995 | case instrumentation::Instrumentation::kFieldRead: |
| 2996 | return &field_read_event_ref_count_; |
| 2997 | case instrumentation::Instrumentation::kFieldWritten: |
| 2998 | return &field_write_event_ref_count_; |
| 2999 | case instrumentation::Instrumentation::kExceptionCaught: |
| 3000 | return &exception_catch_event_ref_count_; |
| 3001 | default: |
| 3002 | return nullptr; |
| 3003 | } |
| 3004 | } |
| 3005 | |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3006 | // Process request while all mutator threads are suspended. |
| 3007 | void Dbg::ProcessDeoptimizationRequest(const DeoptimizationRequest& request) { |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3008 | instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3009 | switch (request.GetKind()) { |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3010 | case DeoptimizationRequest::kNothing: |
| 3011 | LOG(WARNING) << "Ignoring empty deoptimization request."; |
| 3012 | break; |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3013 | case DeoptimizationRequest::kRegisterForEvent: |
| 3014 | VLOG(jdwp) << StringPrintf("Add debugger as listener for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3015 | request.InstrumentationEvent()); |
| 3016 | instrumentation->AddListener(&gDebugInstrumentationListener, request.InstrumentationEvent()); |
| 3017 | instrumentation_events_ |= request.InstrumentationEvent(); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3018 | break; |
| 3019 | case DeoptimizationRequest::kUnregisterForEvent: |
| 3020 | VLOG(jdwp) << StringPrintf("Remove debugger as listener for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3021 | request.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3022 | instrumentation->RemoveListener(&gDebugInstrumentationListener, |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3023 | request.InstrumentationEvent()); |
| 3024 | instrumentation_events_ &= ~request.InstrumentationEvent(); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3025 | break; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3026 | case DeoptimizationRequest::kFullDeoptimization: |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3027 | VLOG(jdwp) << "Deoptimize the world ..."; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3028 | instrumentation->DeoptimizeEverything(); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3029 | VLOG(jdwp) << "Deoptimize the world DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3030 | break; |
| 3031 | case DeoptimizationRequest::kFullUndeoptimization: |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3032 | VLOG(jdwp) << "Undeoptimize the world ..."; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3033 | instrumentation->UndeoptimizeEverything(); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3034 | VLOG(jdwp) << "Undeoptimize the world DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3035 | break; |
| 3036 | case DeoptimizationRequest::kSelectiveDeoptimization: |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3037 | VLOG(jdwp) << "Deoptimize method " << PrettyMethod(request.Method()) << " ..."; |
| 3038 | instrumentation->Deoptimize(request.Method()); |
| 3039 | VLOG(jdwp) << "Deoptimize method " << PrettyMethod(request.Method()) << " DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3040 | break; |
| 3041 | case DeoptimizationRequest::kSelectiveUndeoptimization: |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3042 | VLOG(jdwp) << "Undeoptimize method " << PrettyMethod(request.Method()) << " ..."; |
| 3043 | instrumentation->Undeoptimize(request.Method()); |
| 3044 | VLOG(jdwp) << "Undeoptimize method " << PrettyMethod(request.Method()) << " DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3045 | break; |
| 3046 | default: |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3047 | LOG(FATAL) << "Unsupported deoptimization request kind " << request.GetKind(); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3048 | break; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3049 | } |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3050 | } |
| 3051 | |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3052 | void Dbg::DelayFullUndeoptimization() { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3053 | if (RequiresDeoptimization()) { |
| 3054 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
| 3055 | ++delayed_full_undeoptimization_count_; |
| 3056 | DCHECK_LE(delayed_full_undeoptimization_count_, full_deoptimization_event_count_); |
| 3057 | } |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3058 | } |
| 3059 | |
| 3060 | void Dbg::ProcessDelayedFullUndeoptimizations() { |
| 3061 | // TODO: avoid taking the lock twice (once here and once in ManageDeoptimization). |
| 3062 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 3063 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3064 | while (delayed_full_undeoptimization_count_ > 0) { |
| 3065 | DeoptimizationRequest req; |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3066 | req.SetKind(DeoptimizationRequest::kFullUndeoptimization); |
| 3067 | req.SetMethod(nullptr); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3068 | RequestDeoptimizationLocked(req); |
| 3069 | --delayed_full_undeoptimization_count_; |
| 3070 | } |
| 3071 | } |
| 3072 | ManageDeoptimization(); |
| 3073 | } |
| 3074 | |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3075 | void Dbg::RequestDeoptimization(const DeoptimizationRequest& req) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3076 | if (req.GetKind() == DeoptimizationRequest::kNothing) { |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3077 | // Nothing to do. |
| 3078 | return; |
| 3079 | } |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 3080 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3081 | RequestDeoptimizationLocked(req); |
| 3082 | } |
| 3083 | |
| 3084 | void Dbg::RequestDeoptimizationLocked(const DeoptimizationRequest& req) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3085 | switch (req.GetKind()) { |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3086 | case DeoptimizationRequest::kRegisterForEvent: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3087 | DCHECK_NE(req.InstrumentationEvent(), 0u); |
| 3088 | size_t* counter = GetReferenceCounterForEvent(req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3089 | CHECK(counter != nullptr) << StringPrintf("No counter for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3090 | req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3091 | if (*counter == 0) { |
Sebastien Hertz | 7d2ae43 | 2014-05-15 11:26:34 +0200 | [diff] [blame] | 3092 | VLOG(jdwp) << StringPrintf("Queue request #%zd to start listening to instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3093 | deoptimization_requests_.size(), req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3094 | deoptimization_requests_.push_back(req); |
| 3095 | } |
| 3096 | *counter = *counter + 1; |
| 3097 | break; |
| 3098 | } |
| 3099 | case DeoptimizationRequest::kUnregisterForEvent: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3100 | DCHECK_NE(req.InstrumentationEvent(), 0u); |
| 3101 | size_t* counter = GetReferenceCounterForEvent(req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3102 | CHECK(counter != nullptr) << StringPrintf("No counter for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3103 | req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3104 | *counter = *counter - 1; |
| 3105 | if (*counter == 0) { |
Sebastien Hertz | 7d2ae43 | 2014-05-15 11:26:34 +0200 | [diff] [blame] | 3106 | VLOG(jdwp) << StringPrintf("Queue request #%zd to stop listening to instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3107 | deoptimization_requests_.size(), req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 3108 | deoptimization_requests_.push_back(req); |
| 3109 | } |
| 3110 | break; |
| 3111 | } |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3112 | case DeoptimizationRequest::kFullDeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3113 | DCHECK(req.Method() == nullptr); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3114 | if (full_deoptimization_event_count_ == 0) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3115 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
| 3116 | << " for full deoptimization"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3117 | deoptimization_requests_.push_back(req); |
| 3118 | } |
| 3119 | ++full_deoptimization_event_count_; |
| 3120 | break; |
| 3121 | } |
| 3122 | case DeoptimizationRequest::kFullUndeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3123 | DCHECK(req.Method() == nullptr); |
Sebastien Hertz | e713d93 | 2014-05-15 10:48:53 +0200 | [diff] [blame] | 3124 | DCHECK_GT(full_deoptimization_event_count_, 0U); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3125 | --full_deoptimization_event_count_; |
| 3126 | if (full_deoptimization_event_count_ == 0) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3127 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
| 3128 | << " for full undeoptimization"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3129 | deoptimization_requests_.push_back(req); |
| 3130 | } |
| 3131 | break; |
| 3132 | } |
| 3133 | case DeoptimizationRequest::kSelectiveDeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3134 | DCHECK(req.Method() != nullptr); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3135 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3136 | << " for deoptimization of " << PrettyMethod(req.Method()); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3137 | deoptimization_requests_.push_back(req); |
| 3138 | break; |
| 3139 | } |
| 3140 | case DeoptimizationRequest::kSelectiveUndeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3141 | DCHECK(req.Method() != nullptr); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3142 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3143 | << " for undeoptimization of " << PrettyMethod(req.Method()); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3144 | deoptimization_requests_.push_back(req); |
| 3145 | break; |
| 3146 | } |
| 3147 | default: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3148 | LOG(FATAL) << "Unknown deoptimization request kind " << req.GetKind(); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3149 | break; |
| 3150 | } |
| 3151 | } |
| 3152 | } |
| 3153 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3154 | void Dbg::ManageDeoptimization() { |
| 3155 | Thread* const self = Thread::Current(); |
| 3156 | { |
| 3157 | // Avoid suspend/resume if there is no pending request. |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 3158 | MutexLock mu(self, *Locks::deoptimization_lock_); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3159 | if (deoptimization_requests_.empty()) { |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3160 | return; |
| 3161 | } |
| 3162 | } |
| 3163 | CHECK_EQ(self->GetState(), kRunnable); |
| 3164 | self->TransitionFromRunnableToSuspended(kWaitingForDeoptimization); |
| 3165 | // We need to suspend mutator threads first. |
| 3166 | Runtime* const runtime = Runtime::Current(); |
| 3167 | runtime->GetThreadList()->SuspendAll(); |
| 3168 | const ThreadState old_state = self->SetStateUnsafe(kRunnable); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3169 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 3170 | MutexLock mu(self, *Locks::deoptimization_lock_); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3171 | size_t req_index = 0; |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3172 | for (DeoptimizationRequest& request : deoptimization_requests_) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3173 | VLOG(jdwp) << "Process deoptimization request #" << req_index++; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3174 | ProcessDeoptimizationRequest(request); |
| 3175 | } |
| 3176 | deoptimization_requests_.clear(); |
| 3177 | } |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3178 | CHECK_EQ(self->SetStateUnsafe(old_state), kRunnable); |
| 3179 | runtime->GetThreadList()->ResumeAll(); |
| 3180 | self->TransitionFromSuspendedToRunnable(); |
| 3181 | } |
| 3182 | |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3183 | static bool IsMethodPossiblyInlined(Thread* self, mirror::ArtMethod* m) |
| 3184 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3185 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3186 | if (code_item == nullptr) { |
| 3187 | // TODO We should not be asked to watch location in a native or abstract method so the code item |
| 3188 | // should never be null. We could just check we never encounter this case. |
| 3189 | return false; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3190 | } |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3191 | // Note: method verifier may cause thread suspension. |
| 3192 | self->AssertThreadSuspensionIsAllowable(); |
Hiroshi Yamauchi | dc37617 | 2014-08-22 11:13:12 -0700 | [diff] [blame] | 3193 | StackHandleScope<3> hs(self); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3194 | mirror::Class* declaring_class = m->GetDeclaringClass(); |
| 3195 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(declaring_class->GetDexCache())); |
| 3196 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(declaring_class->GetClassLoader())); |
Hiroshi Yamauchi | dc37617 | 2014-08-22 11:13:12 -0700 | [diff] [blame] | 3197 | Handle<mirror::ArtMethod> method(hs.NewHandle(m)); |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 3198 | verifier::MethodVerifier verifier(self, dex_cache->GetDexFile(), dex_cache, class_loader, |
Hiroshi Yamauchi | dc37617 | 2014-08-22 11:13:12 -0700 | [diff] [blame] | 3199 | &m->GetClassDef(), code_item, m->GetDexMethodIndex(), method, |
Mathieu Chartier | 4306ef8 | 2014-12-19 18:41:47 -0800 | [diff] [blame] | 3200 | m->GetAccessFlags(), false, true, false, true); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3201 | // Note: we don't need to verify the method. |
| 3202 | return InlineMethodAnalyser::AnalyseMethodCode(&verifier, nullptr); |
| 3203 | } |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3204 | |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3205 | static const Breakpoint* FindFirstBreakpointForMethod(mirror::ArtMethod* m) |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 3206 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, Locks::breakpoint_lock_) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3207 | for (Breakpoint& breakpoint : gBreakpoints) { |
| 3208 | if (breakpoint.Method() == m) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3209 | return &breakpoint; |
| 3210 | } |
| 3211 | } |
| 3212 | return nullptr; |
| 3213 | } |
| 3214 | |
| 3215 | // Sanity checks all existing breakpoints on the same method. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3216 | static void SanityCheckExistingBreakpoints(mirror::ArtMethod* m, |
| 3217 | DeoptimizationRequest::Kind deoptimization_kind) |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 3218 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, Locks::breakpoint_lock_) { |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3219 | for (const Breakpoint& breakpoint : gBreakpoints) { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3220 | if (breakpoint.Method() == m) { |
| 3221 | CHECK_EQ(deoptimization_kind, breakpoint.GetDeoptimizationKind()); |
| 3222 | } |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3223 | } |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3224 | instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 3225 | if (deoptimization_kind == DeoptimizationRequest::kFullDeoptimization) { |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3226 | // We should have deoptimized everything but not "selectively" deoptimized this method. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3227 | CHECK(instrumentation->AreAllMethodsDeoptimized()); |
| 3228 | CHECK(!instrumentation->IsDeoptimized(m)); |
| 3229 | } else if (deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization) { |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3230 | // We should have "selectively" deoptimized this method. |
| 3231 | // Note: while we have not deoptimized everything for this method, we may have done it for |
| 3232 | // another event. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3233 | CHECK(instrumentation->IsDeoptimized(m)); |
| 3234 | } else { |
| 3235 | // This method does not require deoptimization. |
| 3236 | CHECK_EQ(deoptimization_kind, DeoptimizationRequest::kNothing); |
| 3237 | CHECK(!instrumentation->IsDeoptimized(m)); |
| 3238 | } |
| 3239 | } |
| 3240 | |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3241 | // Returns the deoptimization kind required to set a breakpoint in a method. |
| 3242 | // If a breakpoint has already been set, we also return the first breakpoint |
| 3243 | // through the given 'existing_brkpt' pointer. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3244 | static DeoptimizationRequest::Kind GetRequiredDeoptimizationKind(Thread* self, |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3245 | mirror::ArtMethod* m, |
| 3246 | const Breakpoint** existing_brkpt) |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3247 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 3248 | if (!Dbg::RequiresDeoptimization()) { |
| 3249 | // We already run in interpreter-only mode so we don't need to deoptimize anything. |
| 3250 | VLOG(jdwp) << "No need for deoptimization when fully running with interpreter for method " |
| 3251 | << PrettyMethod(m); |
| 3252 | return DeoptimizationRequest::kNothing; |
| 3253 | } |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3254 | const Breakpoint* first_breakpoint; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3255 | { |
| 3256 | ReaderMutexLock mu(self, *Locks::breakpoint_lock_); |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3257 | first_breakpoint = FindFirstBreakpointForMethod(m); |
| 3258 | *existing_brkpt = first_breakpoint; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3259 | } |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3260 | |
| 3261 | if (first_breakpoint == nullptr) { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3262 | // There is no breakpoint on this method yet: we need to deoptimize. If this method may be |
| 3263 | // inlined, we deoptimize everything; otherwise we deoptimize only this method. |
| 3264 | // Note: IsMethodPossiblyInlined goes into the method verifier and may cause thread suspension. |
| 3265 | // Therefore we must not hold any lock when we call it. |
| 3266 | bool need_full_deoptimization = IsMethodPossiblyInlined(self, m); |
| 3267 | if (need_full_deoptimization) { |
| 3268 | VLOG(jdwp) << "Need full deoptimization because of possible inlining of method " |
| 3269 | << PrettyMethod(m); |
| 3270 | return DeoptimizationRequest::kFullDeoptimization; |
| 3271 | } else { |
| 3272 | // We don't need to deoptimize if the method has not been compiled. |
| 3273 | ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| 3274 | const bool is_compiled = class_linker->GetOatMethodQuickCodeFor(m) != nullptr; |
| 3275 | if (is_compiled) { |
Sebastien Hertz | 6963e44 | 2014-11-26 22:11:27 +0100 | [diff] [blame] | 3276 | // If the method may be called through its direct code pointer (without loading |
| 3277 | // its updated entrypoint), we need full deoptimization to not miss the breakpoint. |
| 3278 | if (class_linker->MayBeCalledWithDirectCodePointer(m)) { |
| 3279 | VLOG(jdwp) << "Need full deoptimization because of possible direct code call " |
| 3280 | << "into image for compiled method " << PrettyMethod(m); |
| 3281 | return DeoptimizationRequest::kFullDeoptimization; |
| 3282 | } else { |
| 3283 | VLOG(jdwp) << "Need selective deoptimization for compiled method " << PrettyMethod(m); |
| 3284 | return DeoptimizationRequest::kSelectiveDeoptimization; |
| 3285 | } |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3286 | } else { |
| 3287 | // Method is not compiled: we don't need to deoptimize. |
| 3288 | VLOG(jdwp) << "No need for deoptimization for non-compiled method " << PrettyMethod(m); |
| 3289 | return DeoptimizationRequest::kNothing; |
| 3290 | } |
| 3291 | } |
| 3292 | } else { |
| 3293 | // There is at least one breakpoint for this method: we don't need to deoptimize. |
| 3294 | // Let's check that all breakpoints are configured the same way for deoptimization. |
| 3295 | VLOG(jdwp) << "Breakpoint already set: no deoptimization is required"; |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3296 | DeoptimizationRequest::Kind deoptimization_kind = first_breakpoint->GetDeoptimizationKind(); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3297 | if (kIsDebugBuild) { |
| 3298 | ReaderMutexLock mu(self, *Locks::breakpoint_lock_); |
| 3299 | SanityCheckExistingBreakpoints(m, deoptimization_kind); |
| 3300 | } |
| 3301 | return DeoptimizationRequest::kNothing; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3302 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3303 | } |
| 3304 | |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3305 | // Installs a breakpoint at the specified location. Also indicates through the deoptimization |
| 3306 | // request if we need to deoptimize. |
| 3307 | void Dbg::WatchLocation(const JDWP::JdwpLocation* location, DeoptimizationRequest* req) { |
| 3308 | Thread* const self = Thread::Current(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3309 | mirror::ArtMethod* m = FromMethodId(location->method_id); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3310 | DCHECK(m != nullptr) << "No method for method id " << location->method_id; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3311 | |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3312 | const Breakpoint* existing_breakpoint = nullptr; |
| 3313 | const DeoptimizationRequest::Kind deoptimization_kind = |
| 3314 | GetRequiredDeoptimizationKind(self, m, &existing_breakpoint); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3315 | req->SetKind(deoptimization_kind); |
| 3316 | if (deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization) { |
| 3317 | req->SetMethod(m); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3318 | } else { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3319 | CHECK(deoptimization_kind == DeoptimizationRequest::kNothing || |
| 3320 | deoptimization_kind == DeoptimizationRequest::kFullDeoptimization); |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3321 | req->SetMethod(nullptr); |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3322 | } |
| 3323 | |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3324 | { |
| 3325 | WriterMutexLock mu(self, *Locks::breakpoint_lock_); |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3326 | // If there is at least one existing breakpoint on the same method, the new breakpoint |
| 3327 | // must have the same deoptimization kind than the existing breakpoint(s). |
| 3328 | DeoptimizationRequest::Kind breakpoint_deoptimization_kind; |
| 3329 | if (existing_breakpoint != nullptr) { |
| 3330 | breakpoint_deoptimization_kind = existing_breakpoint->GetDeoptimizationKind(); |
| 3331 | } else { |
| 3332 | breakpoint_deoptimization_kind = deoptimization_kind; |
| 3333 | } |
| 3334 | gBreakpoints.push_back(Breakpoint(m, location->dex_pc, breakpoint_deoptimization_kind)); |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3335 | VLOG(jdwp) << "Set breakpoint #" << (gBreakpoints.size() - 1) << ": " |
| 3336 | << gBreakpoints[gBreakpoints.size() - 1]; |
| 3337 | } |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3338 | } |
| 3339 | |
| 3340 | // Uninstalls a breakpoint at the specified location. Also indicates through the deoptimization |
| 3341 | // request if we need to undeoptimize. |
| 3342 | void Dbg::UnwatchLocation(const JDWP::JdwpLocation* location, DeoptimizationRequest* req) { |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 3343 | WriterMutexLock mu(Thread::Current(), *Locks::breakpoint_lock_); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3344 | mirror::ArtMethod* m = FromMethodId(location->method_id); |
| 3345 | DCHECK(m != nullptr) << "No method for method id " << location->method_id; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3346 | DeoptimizationRequest::Kind deoptimization_kind = DeoptimizationRequest::kNothing; |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3347 | for (size_t i = 0, e = gBreakpoints.size(); i < e; ++i) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3348 | if (gBreakpoints[i].DexPc() == location->dex_pc && gBreakpoints[i].Method() == m) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3349 | VLOG(jdwp) << "Removed breakpoint #" << i << ": " << gBreakpoints[i]; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3350 | deoptimization_kind = gBreakpoints[i].GetDeoptimizationKind(); |
| 3351 | DCHECK_EQ(deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization, |
| 3352 | Runtime::Current()->GetInstrumentation()->IsDeoptimized(m)); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3353 | gBreakpoints.erase(gBreakpoints.begin() + i); |
| 3354 | break; |
| 3355 | } |
| 3356 | } |
| 3357 | const Breakpoint* const existing_breakpoint = FindFirstBreakpointForMethod(m); |
| 3358 | if (existing_breakpoint == nullptr) { |
| 3359 | // There is no more breakpoint on this method: we need to undeoptimize. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3360 | if (deoptimization_kind == DeoptimizationRequest::kFullDeoptimization) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3361 | // This method required full deoptimization: we need to undeoptimize everything. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3362 | req->SetKind(DeoptimizationRequest::kFullUndeoptimization); |
| 3363 | req->SetMethod(nullptr); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3364 | } else if (deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3365 | // This method required selective deoptimization: we need to undeoptimize only that method. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3366 | req->SetKind(DeoptimizationRequest::kSelectiveUndeoptimization); |
| 3367 | req->SetMethod(m); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3368 | } else { |
| 3369 | // This method had no need for deoptimization: do nothing. |
| 3370 | CHECK_EQ(deoptimization_kind, DeoptimizationRequest::kNothing); |
| 3371 | req->SetKind(DeoptimizationRequest::kNothing); |
| 3372 | req->SetMethod(nullptr); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3373 | } |
| 3374 | } else { |
| 3375 | // There is at least one breakpoint for this method: we don't need to undeoptimize. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3376 | req->SetKind(DeoptimizationRequest::kNothing); |
| 3377 | req->SetMethod(nullptr); |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3378 | if (kIsDebugBuild) { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3379 | SanityCheckExistingBreakpoints(m, deoptimization_kind); |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3380 | } |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3381 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3382 | } |
| 3383 | |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3384 | // Scoped utility class to suspend a thread so that we may do tasks such as walk its stack. Doesn't |
| 3385 | // cause suspension if the thread is the current thread. |
| 3386 | class ScopedThreadSuspension { |
| 3387 | public: |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 3388 | ScopedThreadSuspension(Thread* self, JDWP::ObjectId thread_id) |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 3389 | LOCKS_EXCLUDED(Locks::thread_list_lock_) |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 3390 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) : |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 3391 | thread_(nullptr), |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3392 | error_(JDWP::ERR_NONE), |
| 3393 | self_suspend_(false), |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 3394 | other_suspend_(false) { |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3395 | ScopedObjectAccessUnchecked soa(self); |
| 3396 | { |
| 3397 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3398 | thread_ = DecodeThread(soa, thread_id, &error_); |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3399 | } |
| 3400 | if (error_ == JDWP::ERR_NONE) { |
| 3401 | if (thread_ == soa.Self()) { |
| 3402 | self_suspend_ = true; |
| 3403 | } else { |
| 3404 | soa.Self()->TransitionFromRunnableToSuspended(kWaitingForDebuggerSuspension); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 3405 | jobject thread_peer = Dbg::GetObjectRegistry()->GetJObject(thread_id); |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3406 | bool timed_out; |
Ian Rogers | 4ad5cd3 | 2014-11-11 23:08:07 -0800 | [diff] [blame] | 3407 | ThreadList* thread_list = Runtime::Current()->GetThreadList(); |
| 3408 | Thread* suspended_thread = thread_list->SuspendThreadByPeer(thread_peer, true, true, |
| 3409 | &timed_out); |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3410 | CHECK_EQ(soa.Self()->TransitionFromSuspendedToRunnable(), kWaitingForDebuggerSuspension); |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 3411 | if (suspended_thread == nullptr) { |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3412 | // Thread terminated from under us while suspending. |
| 3413 | error_ = JDWP::ERR_INVALID_THREAD; |
| 3414 | } else { |
| 3415 | CHECK_EQ(suspended_thread, thread_); |
| 3416 | other_suspend_ = true; |
| 3417 | } |
| 3418 | } |
| 3419 | } |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3420 | } |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3421 | |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3422 | Thread* GetThread() const { |
| 3423 | return thread_; |
| 3424 | } |
| 3425 | |
| 3426 | JDWP::JdwpError GetError() const { |
| 3427 | return error_; |
| 3428 | } |
| 3429 | |
| 3430 | ~ScopedThreadSuspension() { |
| 3431 | if (other_suspend_) { |
| 3432 | Runtime::Current()->GetThreadList()->Resume(thread_, true); |
| 3433 | } |
| 3434 | } |
| 3435 | |
| 3436 | private: |
| 3437 | Thread* thread_; |
| 3438 | JDWP::JdwpError error_; |
| 3439 | bool self_suspend_; |
| 3440 | bool other_suspend_; |
| 3441 | }; |
| 3442 | |
| 3443 | JDWP::JdwpError Dbg::ConfigureStep(JDWP::ObjectId thread_id, JDWP::JdwpStepSize step_size, |
| 3444 | JDWP::JdwpStepDepth step_depth) { |
| 3445 | Thread* self = Thread::Current(); |
| 3446 | ScopedThreadSuspension sts(self, thread_id); |
| 3447 | if (sts.GetError() != JDWP::ERR_NONE) { |
| 3448 | return sts.GetError(); |
| 3449 | } |
| 3450 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3451 | // |
| 3452 | // Work out what Method* we're in, the current line number, and how deep the stack currently |
| 3453 | // is for step-out. |
| 3454 | // |
| 3455 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3456 | struct SingleStepStackVisitor : public StackVisitor { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3457 | explicit SingleStepStackVisitor(Thread* thread, SingleStepControl* single_step_control, |
| 3458 | int32_t* line_number) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 3459 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3460 | : StackVisitor(thread, nullptr), single_step_control_(single_step_control), |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3461 | line_number_(line_number) { |
| 3462 | DCHECK_EQ(single_step_control_, thread->GetSingleStepControl()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3463 | single_step_control_->method = nullptr; |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3464 | single_step_control_->stack_depth = 0; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3465 | } |
Ian Rogers | ca19066 | 2012-06-26 15:45:57 -0700 | [diff] [blame] | 3466 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3467 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 3468 | // annotalysis. |
| 3469 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3470 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3471 | if (!m->IsRuntimeMethod()) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3472 | ++single_step_control_->stack_depth; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3473 | if (single_step_control_->method == nullptr) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3474 | mirror::DexCache* dex_cache = m->GetDeclaringClass()->GetDexCache(); |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3475 | single_step_control_->method = m; |
| 3476 | *line_number_ = -1; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3477 | if (dex_cache != nullptr) { |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3478 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3479 | *line_number_ = dex_file.GetLineNumFromPC(m, GetDexPc()); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3480 | } |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3481 | } |
| 3482 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 3483 | return true; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3484 | } |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3485 | |
| 3486 | SingleStepControl* const single_step_control_; |
| 3487 | int32_t* const line_number_; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3488 | }; |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3489 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3490 | Thread* const thread = sts.GetThread(); |
| 3491 | SingleStepControl* const single_step_control = thread->GetSingleStepControl(); |
| 3492 | DCHECK(single_step_control != nullptr); |
| 3493 | int32_t line_number = -1; |
| 3494 | SingleStepStackVisitor visitor(thread, single_step_control, &line_number); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3495 | visitor.WalkStack(); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3496 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3497 | // |
| 3498 | // Find the dex_pc values that correspond to the current line, for line-based single-stepping. |
| 3499 | // |
| 3500 | |
| 3501 | struct DebugCallbackContext { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3502 | explicit DebugCallbackContext(SingleStepControl* single_step_control_cb, int32_t line_number_cb, |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3503 | const DexFile::CodeItem* code_item) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3504 | : single_step_control_(single_step_control_cb), line_number_(line_number_cb), |
| 3505 | code_item_(code_item), last_pc_valid(false), last_pc(0) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3506 | } |
| 3507 | |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3508 | static bool Callback(void* raw_context, uint32_t address, uint32_t line_number_cb) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3509 | DebugCallbackContext* context = reinterpret_cast<DebugCallbackContext*>(raw_context); |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3510 | if (static_cast<int32_t>(line_number_cb) == context->line_number_) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3511 | if (!context->last_pc_valid) { |
| 3512 | // Everything from this address until the next line change is ours. |
| 3513 | context->last_pc = address; |
| 3514 | context->last_pc_valid = true; |
| 3515 | } |
| 3516 | // Otherwise, if we're already in a valid range for this line, |
| 3517 | // just keep going (shouldn't really happen)... |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3518 | } else if (context->last_pc_valid) { // and the line number is new |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3519 | // Add everything from the last entry up until here to the set |
| 3520 | for (uint32_t dex_pc = context->last_pc; dex_pc < address; ++dex_pc) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3521 | context->single_step_control_->dex_pcs.insert(dex_pc); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3522 | } |
| 3523 | context->last_pc_valid = false; |
| 3524 | } |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3525 | return false; // There may be multiple entries for any given line. |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3526 | } |
| 3527 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3528 | ~DebugCallbackContext() { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3529 | // If the line number was the last in the position table... |
| 3530 | if (last_pc_valid) { |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3531 | size_t end = code_item_->insns_size_in_code_units_; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3532 | for (uint32_t dex_pc = last_pc; dex_pc < end; ++dex_pc) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3533 | single_step_control_->dex_pcs.insert(dex_pc); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3534 | } |
| 3535 | } |
| 3536 | } |
| 3537 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3538 | SingleStepControl* const single_step_control_; |
| 3539 | const int32_t line_number_; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3540 | const DexFile::CodeItem* const code_item_; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3541 | bool last_pc_valid; |
| 3542 | uint32_t last_pc; |
| 3543 | }; |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3544 | single_step_control->dex_pcs.clear(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3545 | mirror::ArtMethod* m = single_step_control->method; |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3546 | if (!m->IsNative()) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3547 | const DexFile::CodeItem* const code_item = m->GetCodeItem(); |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3548 | DebugCallbackContext context(single_step_control, line_number, code_item); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3549 | m->GetDexFile()->DecodeDebugInfo(code_item, m->IsStatic(), m->GetDexMethodIndex(), |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3550 | DebugCallbackContext::Callback, nullptr, &context); |
Elliott Hughes | 3e2e1a2 | 2012-02-21 11:33:41 -0800 | [diff] [blame] | 3551 | } |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3552 | |
| 3553 | // |
| 3554 | // Everything else... |
| 3555 | // |
| 3556 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3557 | single_step_control->step_size = step_size; |
| 3558 | single_step_control->step_depth = step_depth; |
| 3559 | single_step_control->is_active = true; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3560 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3561 | if (VLOG_IS_ON(jdwp)) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3562 | VLOG(jdwp) << "Single-step thread: " << *thread; |
| 3563 | VLOG(jdwp) << "Single-step step size: " << single_step_control->step_size; |
| 3564 | VLOG(jdwp) << "Single-step step depth: " << single_step_control->step_depth; |
| 3565 | VLOG(jdwp) << "Single-step current method: " << PrettyMethod(single_step_control->method); |
| 3566 | VLOG(jdwp) << "Single-step current line: " << line_number; |
| 3567 | VLOG(jdwp) << "Single-step current stack depth: " << single_step_control->stack_depth; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3568 | VLOG(jdwp) << "Single-step dex_pc values:"; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3569 | for (uint32_t dex_pc : single_step_control->dex_pcs) { |
| 3570 | VLOG(jdwp) << StringPrintf(" %#x", dex_pc); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3571 | } |
| 3572 | } |
| 3573 | |
| 3574 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3575 | } |
| 3576 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3577 | void Dbg::UnconfigureStep(JDWP::ObjectId thread_id) { |
| 3578 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 3579 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3580 | JDWP::JdwpError error; |
| 3581 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Sebastien Hertz | 87118ed | 2013-11-26 17:57:18 +0100 | [diff] [blame] | 3582 | if (error == JDWP::ERR_NONE) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3583 | SingleStepControl* single_step_control = thread->GetSingleStepControl(); |
| 3584 | DCHECK(single_step_control != nullptr); |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3585 | single_step_control->Clear(); |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3586 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3587 | } |
| 3588 | |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3589 | static char JdwpTagToShortyChar(JDWP::JdwpTag tag) { |
| 3590 | switch (tag) { |
| 3591 | default: |
| 3592 | LOG(FATAL) << "unknown JDWP tag: " << PrintableChar(tag); |
Ian Rogers | fc787ec | 2014-10-09 21:56:44 -0700 | [diff] [blame] | 3593 | UNREACHABLE(); |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3594 | |
| 3595 | // Primitives. |
| 3596 | case JDWP::JT_BYTE: return 'B'; |
| 3597 | case JDWP::JT_CHAR: return 'C'; |
| 3598 | case JDWP::JT_FLOAT: return 'F'; |
| 3599 | case JDWP::JT_DOUBLE: return 'D'; |
| 3600 | case JDWP::JT_INT: return 'I'; |
| 3601 | case JDWP::JT_LONG: return 'J'; |
| 3602 | case JDWP::JT_SHORT: return 'S'; |
| 3603 | case JDWP::JT_VOID: return 'V'; |
| 3604 | case JDWP::JT_BOOLEAN: return 'Z'; |
| 3605 | |
| 3606 | // Reference types. |
| 3607 | case JDWP::JT_ARRAY: |
| 3608 | case JDWP::JT_OBJECT: |
| 3609 | case JDWP::JT_STRING: |
| 3610 | case JDWP::JT_THREAD: |
| 3611 | case JDWP::JT_THREAD_GROUP: |
| 3612 | case JDWP::JT_CLASS_LOADER: |
| 3613 | case JDWP::JT_CLASS_OBJECT: |
| 3614 | return 'L'; |
| 3615 | } |
| 3616 | } |
| 3617 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 3618 | JDWP::JdwpError Dbg::InvokeMethod(JDWP::ObjectId thread_id, JDWP::ObjectId object_id, |
| 3619 | JDWP::RefTypeId class_id, JDWP::MethodId method_id, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3620 | uint32_t arg_count, uint64_t* arg_values, |
| 3621 | JDWP::JdwpTag* arg_types, uint32_t options, |
| 3622 | JDWP::JdwpTag* pResultTag, uint64_t* pResultValue, |
| 3623 | JDWP::ObjectId* pExceptionId) { |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3624 | ThreadList* thread_list = Runtime::Current()->GetThreadList(); |
| 3625 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3626 | Thread* targetThread = nullptr; |
| 3627 | DebugInvokeReq* req = nullptr; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3628 | Thread* self = Thread::Current(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3629 | { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3630 | ScopedObjectAccessUnchecked soa(self); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3631 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3632 | JDWP::JdwpError error; |
| 3633 | targetThread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 3634 | if (error != JDWP::ERR_NONE) { |
| 3635 | LOG(ERROR) << "InvokeMethod request for invalid thread id " << thread_id; |
| 3636 | return error; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3637 | } |
| 3638 | req = targetThread->GetInvokeReq(); |
| 3639 | if (!req->ready) { |
| 3640 | LOG(ERROR) << "InvokeMethod request for thread not stopped by event: " << *targetThread; |
| 3641 | return JDWP::ERR_INVALID_THREAD; |
| 3642 | } |
| 3643 | |
| 3644 | /* |
| 3645 | * We currently have a bug where we don't successfully resume the |
| 3646 | * target thread if the suspend count is too deep. We're expected to |
| 3647 | * require one "resume" for each "suspend", but when asked to execute |
| 3648 | * a method we have to resume fully and then re-suspend it back to the |
| 3649 | * same level. (The easiest way to cause this is to type "suspend" |
| 3650 | * multiple times in jdb.) |
| 3651 | * |
| 3652 | * It's unclear what this means when the event specifies "resume all" |
| 3653 | * and some threads are suspended more deeply than others. This is |
| 3654 | * a rare problem, so for now we just prevent it from hanging forever |
| 3655 | * by rejecting the method invocation request. Without this, we will |
| 3656 | * be stuck waiting on a suspended thread. |
| 3657 | */ |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3658 | int suspend_count; |
| 3659 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3660 | MutexLock mu2(soa.Self(), *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3661 | suspend_count = targetThread->GetSuspendCount(); |
| 3662 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3663 | if (suspend_count > 1) { |
| 3664 | LOG(ERROR) << *targetThread << " suspend count too deep for method invocation: " << suspend_count; |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3665 | return JDWP::ERR_THREAD_SUSPENDED; // Probably not expected here. |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3666 | } |
| 3667 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3668 | mirror::Object* receiver = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 3669 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 3670 | return JDWP::ERR_INVALID_OBJECT; |
| 3671 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3672 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3673 | mirror::Object* thread = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 3674 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 3675 | return JDWP::ERR_INVALID_OBJECT; |
| 3676 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3677 | // TODO: check that 'thread' is actually a java.lang.Thread! |
| 3678 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3679 | mirror::Class* c = DecodeClass(class_id, &error); |
| 3680 | if (c == nullptr) { |
| 3681 | return error; |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 3682 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3683 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3684 | mirror::ArtMethod* m = FromMethodId(method_id); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3685 | if (m->IsStatic() != (receiver == nullptr)) { |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3686 | return JDWP::ERR_INVALID_METHODID; |
| 3687 | } |
| 3688 | if (m->IsStatic()) { |
| 3689 | if (m->GetDeclaringClass() != c) { |
| 3690 | return JDWP::ERR_INVALID_METHODID; |
| 3691 | } |
| 3692 | } else { |
| 3693 | if (!m->GetDeclaringClass()->IsAssignableFrom(c)) { |
| 3694 | return JDWP::ERR_INVALID_METHODID; |
| 3695 | } |
| 3696 | } |
| 3697 | |
| 3698 | // Check the argument list matches the method. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3699 | uint32_t shorty_len = 0; |
| 3700 | const char* shorty = m->GetShorty(&shorty_len); |
| 3701 | if (shorty_len - 1 != arg_count) { |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3702 | return JDWP::ERR_ILLEGAL_ARGUMENT; |
| 3703 | } |
Elliott Hughes | 0920163 | 2013-04-15 15:50:07 -0700 | [diff] [blame] | 3704 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3705 | { |
| 3706 | StackHandleScope<3> hs(soa.Self()); |
Ian Rogers | a048560 | 2014-12-02 15:48:04 -0800 | [diff] [blame] | 3707 | HandleWrapper<mirror::ArtMethod> h_m(hs.NewHandleWrapper(&m)); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3708 | HandleWrapper<mirror::Object> h_obj(hs.NewHandleWrapper(&receiver)); |
| 3709 | HandleWrapper<mirror::Class> h_klass(hs.NewHandleWrapper(&c)); |
| 3710 | const DexFile::TypeList* types = m->GetParameterTypeList(); |
| 3711 | for (size_t i = 0; i < arg_count; ++i) { |
| 3712 | if (shorty[i + 1] != JdwpTagToShortyChar(arg_types[i])) { |
Elliott Hughes | 0920163 | 2013-04-15 15:50:07 -0700 | [diff] [blame] | 3713 | return JDWP::ERR_ILLEGAL_ARGUMENT; |
| 3714 | } |
| 3715 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3716 | if (shorty[i + 1] == 'L') { |
| 3717 | // Did we really get an argument of an appropriate reference type? |
Ian Rogers | a048560 | 2014-12-02 15:48:04 -0800 | [diff] [blame] | 3718 | mirror::Class* parameter_type = |
| 3719 | h_m->GetClassFromTypeIndex(types->GetTypeItem(i).type_idx_, true); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3720 | mirror::Object* argument = gRegistry->Get<mirror::Object*>(arg_values[i], &error); |
| 3721 | if (error != JDWP::ERR_NONE) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3722 | return JDWP::ERR_INVALID_OBJECT; |
| 3723 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3724 | if (argument != nullptr && !argument->InstanceOf(parameter_type)) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3725 | return JDWP::ERR_ILLEGAL_ARGUMENT; |
| 3726 | } |
| 3727 | |
| 3728 | // Turn the on-the-wire ObjectId into a jobject. |
| 3729 | jvalue& v = reinterpret_cast<jvalue&>(arg_values[i]); |
| 3730 | v.l = gRegistry->GetJObject(arg_values[i]); |
| 3731 | } |
Elliott Hughes | 0920163 | 2013-04-15 15:50:07 -0700 | [diff] [blame] | 3732 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3733 | } |
| 3734 | |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3735 | req->receiver = receiver; |
| 3736 | req->thread = thread; |
| 3737 | req->klass = c; |
| 3738 | req->method = m; |
| 3739 | req->arg_count = arg_count; |
| 3740 | req->arg_values = arg_values; |
| 3741 | req->options = options; |
| 3742 | req->invoke_needed = true; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3743 | } |
| 3744 | |
| 3745 | // The fact that we've released the thread list lock is a bit risky --- if the thread goes |
| 3746 | // away we're sitting high and dry -- but we must release this before the ResumeAllThreads |
| 3747 | // call, and it's unwise to hold it during WaitForSuspend. |
| 3748 | |
| 3749 | { |
| 3750 | /* |
| 3751 | * We change our (JDWP thread) status, which should be THREAD_RUNNING, |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 3752 | * so we can suspend for a GC if the invoke request causes us to |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3753 | * run out of memory. It's also a good idea to change it before locking |
| 3754 | * the invokeReq mutex, although that should never be held for long. |
| 3755 | */ |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3756 | self->TransitionFromRunnableToSuspended(kWaitingForDebuggerSend); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3757 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3758 | VLOG(jdwp) << " Transferring control to event thread"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3759 | { |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3760 | MutexLock mu(self, req->lock); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3761 | |
| 3762 | if ((options & JDWP::INVOKE_SINGLE_THREADED) == 0) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3763 | VLOG(jdwp) << " Resuming all threads"; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3764 | thread_list->UndoDebuggerSuspensions(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3765 | } else { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3766 | VLOG(jdwp) << " Resuming event thread only"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3767 | thread_list->Resume(targetThread, true); |
| 3768 | } |
| 3769 | |
| 3770 | // Wait for the request to finish executing. |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3771 | while (req->invoke_needed) { |
| 3772 | req->cond.Wait(self); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3773 | } |
| 3774 | } |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3775 | VLOG(jdwp) << " Control has returned from event thread"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3776 | |
| 3777 | /* wait for thread to re-suspend itself */ |
Brian Carlstrom | df62950 | 2013-07-17 22:39:56 -0700 | [diff] [blame] | 3778 | SuspendThread(thread_id, false /* request_suspension */); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3779 | self->TransitionFromSuspendedToRunnable(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3780 | } |
| 3781 | |
| 3782 | /* |
| 3783 | * Suspend the threads. We waited for the target thread to suspend |
| 3784 | * itself, so all we need to do is suspend the others. |
| 3785 | * |
| 3786 | * The suspendAllThreads() call will double-suspend the event thread, |
| 3787 | * so we want to resume the target thread once to keep the books straight. |
| 3788 | */ |
| 3789 | if ((options & JDWP::INVOKE_SINGLE_THREADED) == 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3790 | self->TransitionFromRunnableToSuspended(kWaitingForDebuggerSuspension); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3791 | VLOG(jdwp) << " Suspending all threads"; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3792 | thread_list->SuspendAllForDebugger(); |
| 3793 | self->TransitionFromSuspendedToRunnable(); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3794 | VLOG(jdwp) << " Resuming event thread to balance the count"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3795 | thread_list->Resume(targetThread, true); |
| 3796 | } |
| 3797 | |
| 3798 | // Copy the result. |
| 3799 | *pResultTag = req->result_tag; |
| 3800 | if (IsPrimitiveTag(req->result_tag)) { |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3801 | *pResultValue = req->result_value.GetJ(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3802 | } else { |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3803 | *pResultValue = gRegistry->Add(req->result_value.GetL()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3804 | } |
| 3805 | *pExceptionId = req->exception; |
| 3806 | return req->error; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3807 | } |
| 3808 | |
| 3809 | void Dbg::ExecuteMethod(DebugInvokeReq* pReq) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3810 | ScopedObjectAccess soa(Thread::Current()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3811 | |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 3812 | // We can be called while an exception is pending. We need |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3813 | // to preserve that across the method invocation. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3814 | StackHandleScope<4> hs(soa.Self()); |
| 3815 | auto old_throw_this_object = hs.NewHandle<mirror::Object>(nullptr); |
| 3816 | auto old_throw_method = hs.NewHandle<mirror::ArtMethod>(nullptr); |
| 3817 | auto old_exception = hs.NewHandle<mirror::Throwable>(nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3818 | uint32_t old_throw_dex_pc; |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 3819 | bool old_exception_report_flag; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3820 | { |
| 3821 | ThrowLocation old_throw_location; |
| 3822 | mirror::Throwable* old_exception_obj = soa.Self()->GetException(&old_throw_location); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3823 | old_throw_this_object.Assign(old_throw_location.GetThis()); |
| 3824 | old_throw_method.Assign(old_throw_location.GetMethod()); |
| 3825 | old_exception.Assign(old_exception_obj); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3826 | old_throw_dex_pc = old_throw_location.GetDexPc(); |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 3827 | old_exception_report_flag = soa.Self()->IsExceptionReportedToInstrumentation(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3828 | soa.Self()->ClearException(); |
| 3829 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3830 | |
| 3831 | // Translate the method through the vtable, unless the debugger wants to suppress it. |
Andreas Gampe | 5a4b8a2 | 2014-09-11 08:30:08 -0700 | [diff] [blame] | 3832 | MutableHandle<mirror::ArtMethod> m(hs.NewHandle(pReq->method)); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3833 | if ((pReq->options & JDWP::INVOKE_NONVIRTUAL) == 0 && pReq->receiver != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3834 | mirror::ArtMethod* actual_method = pReq->klass->FindVirtualMethodForVirtualOrInterface(m.Get()); |
| 3835 | if (actual_method != m.Get()) { |
| 3836 | VLOG(jdwp) << "ExecuteMethod translated " << PrettyMethod(m.Get()) << " to " << PrettyMethod(actual_method); |
| 3837 | m.Assign(actual_method); |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3838 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3839 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3840 | VLOG(jdwp) << "ExecuteMethod " << PrettyMethod(m.Get()) |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3841 | << " receiver=" << pReq->receiver |
| 3842 | << " arg_count=" << pReq->arg_count; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3843 | CHECK(m.Get() != nullptr); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3844 | |
| 3845 | CHECK_EQ(sizeof(jvalue), sizeof(uint64_t)); |
| 3846 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3847 | pReq->result_value = InvokeWithJValues(soa, pReq->receiver, soa.EncodeMethod(m.Get()), |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 3848 | reinterpret_cast<jvalue*>(pReq->arg_values)); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3849 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3850 | mirror::Throwable* exception = soa.Self()->GetException(nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3851 | soa.Self()->ClearException(); |
| 3852 | pReq->exception = gRegistry->Add(exception); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3853 | pReq->result_tag = BasicTagFromDescriptor(m.Get()->GetShorty()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3854 | if (pReq->exception != 0) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3855 | VLOG(jdwp) << " JDWP invocation returning with exception=" << exception |
| 3856 | << " " << exception->Dump(); |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3857 | pReq->result_value.SetJ(0); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3858 | } else if (pReq->result_tag == JDWP::JT_OBJECT) { |
| 3859 | /* if no exception thrown, examine object result more closely */ |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 3860 | JDWP::JdwpTag new_tag = TagFromObject(soa, pReq->result_value.GetL()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3861 | if (new_tag != pReq->result_tag) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3862 | VLOG(jdwp) << " JDWP promoted result from " << pReq->result_tag << " to " << new_tag; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3863 | pReq->result_tag = new_tag; |
| 3864 | } |
| 3865 | |
| 3866 | /* |
| 3867 | * Register the object. We don't actually need an ObjectId yet, |
| 3868 | * but we do need to be sure that the GC won't move or discard the |
| 3869 | * object when we switch out of RUNNING. The ObjectId conversion |
| 3870 | * will add the object to the "do not touch" list. |
| 3871 | * |
| 3872 | * We can't use the "tracked allocation" mechanism here because |
| 3873 | * the object is going to be handed off to a different thread. |
| 3874 | */ |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3875 | gRegistry->Add(pReq->result_value.GetL()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3876 | } |
| 3877 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3878 | if (old_exception.Get() != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3879 | ThrowLocation gc_safe_throw_location(old_throw_this_object.Get(), old_throw_method.Get(), |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3880 | old_throw_dex_pc); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3881 | soa.Self()->SetException(gc_safe_throw_location, old_exception.Get()); |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 3882 | soa.Self()->SetExceptionReportedToInstrumentation(old_exception_report_flag); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3883 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3884 | } |
| 3885 | |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3886 | /* |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3887 | * "request" contains a full JDWP packet, possibly with multiple chunks. We |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3888 | * need to process each, accumulate the replies, and ship the whole thing |
| 3889 | * back. |
| 3890 | * |
| 3891 | * Returns "true" if we have a reply. The reply buffer is newly allocated, |
| 3892 | * and includes the chunk type/length, followed by the data. |
| 3893 | * |
Elliott Hughes | 3d30d9b | 2011-12-07 17:35:48 -0800 | [diff] [blame] | 3894 | * OLD-TODO: we currently assume that the request and reply include a single |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3895 | * chunk. If this becomes inconvenient we will need to adapt. |
| 3896 | */ |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3897 | bool Dbg::DdmHandlePacket(JDWP::Request* request, uint8_t** pReplyBuf, int* pReplyLen) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3898 | Thread* self = Thread::Current(); |
| 3899 | JNIEnv* env = self->GetJniEnv(); |
| 3900 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3901 | uint32_t type = request->ReadUnsigned32("type"); |
| 3902 | uint32_t length = request->ReadUnsigned32("length"); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3903 | |
| 3904 | // Create a byte[] corresponding to 'request'. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3905 | size_t request_length = request->size(); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3906 | ScopedLocalRef<jbyteArray> dataArray(env, env->NewByteArray(request_length)); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3907 | if (dataArray.get() == nullptr) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3908 | LOG(WARNING) << "byte[] allocation failed: " << request_length; |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3909 | env->ExceptionClear(); |
| 3910 | return false; |
| 3911 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3912 | env->SetByteArrayRegion(dataArray.get(), 0, request_length, |
| 3913 | reinterpret_cast<const jbyte*>(request->data())); |
| 3914 | request->Skip(request_length); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3915 | |
| 3916 | // Run through and find all chunks. [Currently just find the first.] |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 3917 | ScopedByteArrayRO contents(env, dataArray.get()); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3918 | if (length != request_length) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3919 | LOG(WARNING) << StringPrintf("bad chunk found (len=%u pktLen=%zd)", length, request_length); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3920 | return false; |
| 3921 | } |
| 3922 | |
| 3923 | // Call "private static Chunk dispatch(int type, byte[] data, int offset, int length)". |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3924 | ScopedLocalRef<jobject> chunk(env, env->CallStaticObjectMethod(WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer, |
| 3925 | WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer_dispatch, |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3926 | type, dataArray.get(), 0, length)); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3927 | if (env->ExceptionCheck()) { |
| 3928 | LOG(INFO) << StringPrintf("Exception thrown by dispatcher for 0x%08x", type); |
| 3929 | env->ExceptionDescribe(); |
| 3930 | env->ExceptionClear(); |
| 3931 | return false; |
| 3932 | } |
| 3933 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3934 | if (chunk.get() == nullptr) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3935 | return false; |
| 3936 | } |
| 3937 | |
| 3938 | /* |
| 3939 | * Pull the pieces out of the chunk. We copy the results into a |
| 3940 | * newly-allocated buffer that the caller can free. We don't want to |
| 3941 | * continue using the Chunk object because nothing has a reference to it. |
| 3942 | * |
| 3943 | * We could avoid this by returning type/data/offset/length and having |
| 3944 | * the caller be aware of the object lifetime issues, but that |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 3945 | * integrates the JDWP code more tightly into the rest of the runtime, and doesn't work |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3946 | * if we have responses for multiple chunks. |
| 3947 | * |
| 3948 | * So we're pretty much stuck with copying data around multiple times. |
| 3949 | */ |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3950 | ScopedLocalRef<jbyteArray> replyData(env, reinterpret_cast<jbyteArray>(env->GetObjectField(chunk.get(), WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_data))); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3951 | jint offset = env->GetIntField(chunk.get(), WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_offset); |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3952 | length = env->GetIntField(chunk.get(), WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_length); |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3953 | type = env->GetIntField(chunk.get(), WellKnownClasses::org_apache_harmony_dalvik_ddmc_Chunk_type); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3954 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3955 | VLOG(jdwp) << StringPrintf("DDM reply: type=0x%08x data=%p offset=%d length=%d", type, replyData.get(), offset, length); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3956 | if (length == 0 || replyData.get() == nullptr) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3957 | return false; |
| 3958 | } |
| 3959 | |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3960 | const int kChunkHdrLen = 8; |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3961 | uint8_t* reply = new uint8_t[length + kChunkHdrLen]; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3962 | if (reply == nullptr) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3963 | LOG(WARNING) << "malloc failed: " << (length + kChunkHdrLen); |
| 3964 | return false; |
| 3965 | } |
Elliott Hughes | f7c3b66 | 2011-10-27 12:04:56 -0700 | [diff] [blame] | 3966 | JDWP::Set4BE(reply + 0, type); |
| 3967 | JDWP::Set4BE(reply + 4, length); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 3968 | env->GetByteArrayRegion(replyData.get(), offset, length, reinterpret_cast<jbyte*>(reply + kChunkHdrLen)); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3969 | |
| 3970 | *pReplyBuf = reply; |
| 3971 | *pReplyLen = length + kChunkHdrLen; |
| 3972 | |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3973 | VLOG(jdwp) << StringPrintf("dvmHandleDdm returning type=%.4s %p len=%d", reinterpret_cast<char*>(reply), reply, length); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3974 | return true; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3975 | } |
| 3976 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3977 | void Dbg::DdmBroadcast(bool connect) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3978 | VLOG(jdwp) << "Broadcasting DDM " << (connect ? "connect" : "disconnect") << "..."; |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3979 | |
| 3980 | Thread* self = Thread::Current(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3981 | if (self->GetState() != kRunnable) { |
| 3982 | LOG(ERROR) << "DDM broadcast in thread state " << self->GetState(); |
| 3983 | /* try anyway? */ |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3984 | } |
| 3985 | |
| 3986 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3987 | jint event = connect ? 1 /*DdmServer.CONNECTED*/ : 2 /*DdmServer.DISCONNECTED*/; |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3988 | env->CallStaticVoidMethod(WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer, |
| 3989 | WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer_broadcast, |
| 3990 | event); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3991 | if (env->ExceptionCheck()) { |
| 3992 | LOG(ERROR) << "DdmServer.broadcast " << event << " failed"; |
| 3993 | env->ExceptionDescribe(); |
| 3994 | env->ExceptionClear(); |
| 3995 | } |
| 3996 | } |
| 3997 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3998 | void Dbg::DdmConnected() { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3999 | Dbg::DdmBroadcast(true); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 4000 | } |
| 4001 | |
| 4002 | void Dbg::DdmDisconnected() { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4003 | Dbg::DdmBroadcast(false); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4004 | gDdmThreadNotification = false; |
| 4005 | } |
| 4006 | |
| 4007 | /* |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4008 | * Send a notification when a thread starts, stops, or changes its name. |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4009 | * |
| 4010 | * Because we broadcast the full set of threads when the notifications are |
| 4011 | * first enabled, it's possible for "thread" to be actively executing. |
| 4012 | */ |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4013 | void Dbg::DdmSendThreadNotification(Thread* t, uint32_t type) { |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4014 | if (!gDdmThreadNotification) { |
| 4015 | return; |
| 4016 | } |
| 4017 | |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4018 | if (type == CHUNK_TYPE("THDE")) { |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4019 | uint8_t buf[4]; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 4020 | JDWP::Set4BE(&buf[0], t->GetThreadId()); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4021 | Dbg::DdmSendChunk(CHUNK_TYPE("THDE"), 4, buf); |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4022 | } else { |
| 4023 | CHECK(type == CHUNK_TYPE("THCR") || type == CHUNK_TYPE("THNM")) << type; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4024 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 4025 | StackHandleScope<1> hs(soa.Self()); |
| 4026 | Handle<mirror::String> name(hs.NewHandle(t->GetThreadName(soa))); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4027 | size_t char_count = (name.Get() != nullptr) ? name->GetLength() : 0; |
| 4028 | const jchar* chars = (name.Get() != nullptr) ? name->GetCharArray()->GetData() : nullptr; |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4029 | |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4030 | std::vector<uint8_t> bytes; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 4031 | JDWP::Append4BE(bytes, t->GetThreadId()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4032 | JDWP::AppendUtf16BE(bytes, chars, char_count); |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4033 | CHECK_EQ(bytes.size(), char_count*2 + sizeof(uint32_t)*2); |
| 4034 | Dbg::DdmSendChunk(type, bytes); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4035 | } |
| 4036 | } |
| 4037 | |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4038 | void Dbg::DdmSetThreadNotification(bool enable) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4039 | // Enable/disable thread notifications. |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4040 | gDdmThreadNotification = enable; |
| 4041 | if (enable) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4042 | // Suspend the VM then post thread start notifications for all threads. Threads attaching will |
| 4043 | // see a suspension in progress and block until that ends. They then post their own start |
| 4044 | // notification. |
| 4045 | SuspendVM(); |
| 4046 | std::list<Thread*> threads; |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4047 | Thread* self = Thread::Current(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4048 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4049 | MutexLock mu(self, *Locks::thread_list_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4050 | threads = Runtime::Current()->GetThreadList()->GetList(); |
| 4051 | } |
| 4052 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4053 | ScopedObjectAccess soa(self); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4054 | for (Thread* thread : threads) { |
| 4055 | Dbg::DdmSendThreadNotification(thread, CHUNK_TYPE("THCR")); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4056 | } |
| 4057 | } |
| 4058 | ResumeVM(); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4059 | } |
| 4060 | } |
| 4061 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4062 | void Dbg::PostThreadStartOrStop(Thread* t, uint32_t type) { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 4063 | if (IsDebuggerActive()) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 4064 | gJdwpState->PostThreadChange(t, type == CHUNK_TYPE("THCR")); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4065 | } |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4066 | Dbg::DdmSendThreadNotification(t, type); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4067 | } |
| 4068 | |
| 4069 | void Dbg::PostThreadStart(Thread* t) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4070 | Dbg::PostThreadStartOrStop(t, CHUNK_TYPE("THCR")); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 4071 | } |
| 4072 | |
| 4073 | void Dbg::PostThreadDeath(Thread* t) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4074 | Dbg::PostThreadStartOrStop(t, CHUNK_TYPE("THDE")); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 4075 | } |
| 4076 | |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 4077 | void Dbg::DdmSendChunk(uint32_t type, size_t byte_count, const uint8_t* buf) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4078 | CHECK(buf != nullptr); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 4079 | iovec vec[1]; |
| 4080 | vec[0].iov_base = reinterpret_cast<void*>(const_cast<uint8_t*>(buf)); |
| 4081 | vec[0].iov_len = byte_count; |
| 4082 | Dbg::DdmSendChunkV(type, vec, 1); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 4083 | } |
| 4084 | |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4085 | void Dbg::DdmSendChunk(uint32_t type, const std::vector<uint8_t>& bytes) { |
| 4086 | DdmSendChunk(type, bytes.size(), &bytes[0]); |
| 4087 | } |
| 4088 | |
Brian Carlstrom | f529352 | 2013-07-19 00:24:00 -0700 | [diff] [blame] | 4089 | void Dbg::DdmSendChunkV(uint32_t type, const iovec* iov, int iov_count) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4090 | if (gJdwpState == nullptr) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 4091 | VLOG(jdwp) << "Debugger thread not active, ignoring DDM send: " << type; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 4092 | } else { |
Elliott Hughes | cccd84f | 2011-12-05 16:51:54 -0800 | [diff] [blame] | 4093 | gJdwpState->DdmSendChunkV(type, iov, iov_count); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 4094 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 4095 | } |
| 4096 | |
Mathieu Chartier | ad466ad | 2015-01-08 16:28:08 -0800 | [diff] [blame] | 4097 | JDWP::JdwpState* Dbg::GetJdwpState() { |
| 4098 | return gJdwpState; |
| 4099 | } |
| 4100 | |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 4101 | int Dbg::DdmHandleHpifChunk(HpifWhen when) { |
| 4102 | if (when == HPIF_WHEN_NOW) { |
Elliott Hughes | 7162ad9 | 2011-10-27 14:08:42 -0700 | [diff] [blame] | 4103 | DdmSendHeapInfo(when); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 4104 | return true; |
| 4105 | } |
| 4106 | |
| 4107 | if (when != HPIF_WHEN_NEVER && when != HPIF_WHEN_NEXT_GC && when != HPIF_WHEN_EVERY_GC) { |
| 4108 | LOG(ERROR) << "invalid HpifWhen value: " << static_cast<int>(when); |
| 4109 | return false; |
| 4110 | } |
| 4111 | |
| 4112 | gDdmHpifWhen = when; |
| 4113 | return true; |
| 4114 | } |
| 4115 | |
| 4116 | bool Dbg::DdmHandleHpsgNhsgChunk(Dbg::HpsgWhen when, Dbg::HpsgWhat what, bool native) { |
| 4117 | if (when != HPSG_WHEN_NEVER && when != HPSG_WHEN_EVERY_GC) { |
| 4118 | LOG(ERROR) << "invalid HpsgWhen value: " << static_cast<int>(when); |
| 4119 | return false; |
| 4120 | } |
| 4121 | |
| 4122 | if (what != HPSG_WHAT_MERGED_OBJECTS && what != HPSG_WHAT_DISTINCT_OBJECTS) { |
| 4123 | LOG(ERROR) << "invalid HpsgWhat value: " << static_cast<int>(what); |
| 4124 | return false; |
| 4125 | } |
| 4126 | |
| 4127 | if (native) { |
| 4128 | gDdmNhsgWhen = when; |
| 4129 | gDdmNhsgWhat = what; |
| 4130 | } else { |
| 4131 | gDdmHpsgWhen = when; |
| 4132 | gDdmHpsgWhat = what; |
| 4133 | } |
| 4134 | return true; |
| 4135 | } |
| 4136 | |
Elliott Hughes | 7162ad9 | 2011-10-27 14:08:42 -0700 | [diff] [blame] | 4137 | void Dbg::DdmSendHeapInfo(HpifWhen reason) { |
| 4138 | // If there's a one-shot 'when', reset it. |
| 4139 | if (reason == gDdmHpifWhen) { |
| 4140 | if (gDdmHpifWhen == HPIF_WHEN_NEXT_GC) { |
| 4141 | gDdmHpifWhen = HPIF_WHEN_NEVER; |
| 4142 | } |
| 4143 | } |
| 4144 | |
| 4145 | /* |
| 4146 | * Chunk HPIF (client --> server) |
| 4147 | * |
| 4148 | * Heap Info. General information about the heap, |
| 4149 | * suitable for a summary display. |
| 4150 | * |
| 4151 | * [u4]: number of heaps |
| 4152 | * |
| 4153 | * For each heap: |
| 4154 | * [u4]: heap ID |
| 4155 | * [u8]: timestamp in ms since Unix epoch |
| 4156 | * [u1]: capture reason (same as 'when' value from server) |
| 4157 | * [u4]: max heap size in bytes (-Xmx) |
| 4158 | * [u4]: current heap size in bytes |
| 4159 | * [u4]: current number of bytes allocated |
| 4160 | * [u4]: current number of objects allocated |
| 4161 | */ |
| 4162 | uint8_t heap_count = 1; |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 4163 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4164 | std::vector<uint8_t> bytes; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4165 | JDWP::Append4BE(bytes, heap_count); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4166 | JDWP::Append4BE(bytes, 1); // Heap id (bogus; we only have one heap). |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4167 | JDWP::Append8BE(bytes, MilliTime()); |
| 4168 | JDWP::Append1BE(bytes, reason); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4169 | JDWP::Append4BE(bytes, heap->GetMaxMemory()); // Max allowed heap size in bytes. |
| 4170 | JDWP::Append4BE(bytes, heap->GetTotalMemory()); // Current heap size in bytes. |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 4171 | JDWP::Append4BE(bytes, heap->GetBytesAllocated()); |
| 4172 | JDWP::Append4BE(bytes, heap->GetObjectsAllocated()); |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4173 | CHECK_EQ(bytes.size(), 4U + (heap_count * (4 + 8 + 1 + 4 + 4 + 4 + 4))); |
| 4174 | Dbg::DdmSendChunk(CHUNK_TYPE("HPIF"), bytes); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 4175 | } |
| 4176 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4177 | enum HpsgSolidity { |
| 4178 | SOLIDITY_FREE = 0, |
| 4179 | SOLIDITY_HARD = 1, |
| 4180 | SOLIDITY_SOFT = 2, |
| 4181 | SOLIDITY_WEAK = 3, |
| 4182 | SOLIDITY_PHANTOM = 4, |
| 4183 | SOLIDITY_FINALIZABLE = 5, |
| 4184 | SOLIDITY_SWEEP = 6, |
| 4185 | }; |
| 4186 | |
| 4187 | enum HpsgKind { |
| 4188 | KIND_OBJECT = 0, |
| 4189 | KIND_CLASS_OBJECT = 1, |
| 4190 | KIND_ARRAY_1 = 2, |
| 4191 | KIND_ARRAY_2 = 3, |
| 4192 | KIND_ARRAY_4 = 4, |
| 4193 | KIND_ARRAY_8 = 5, |
| 4194 | KIND_UNKNOWN = 6, |
| 4195 | KIND_NATIVE = 7, |
| 4196 | }; |
| 4197 | |
| 4198 | #define HPSG_PARTIAL (1<<7) |
| 4199 | #define HPSG_STATE(solidity, kind) ((uint8_t)((((kind) & 0x7) << 3) | ((solidity) & 0x7))) |
| 4200 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4201 | class HeapChunkContext { |
| 4202 | public: |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4203 | // Maximum chunk size. Obtain this from the formula: |
| 4204 | // (((maximum_heap_size / ALLOCATION_UNIT_SIZE) + 255) / 256) * 2 |
| 4205 | HeapChunkContext(bool merge, bool native) |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4206 | : buf_(16384 - 16), |
| 4207 | type_(0), |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4208 | chunk_overhead_(0) { |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4209 | Reset(); |
| 4210 | if (native) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4211 | type_ = CHUNK_TYPE("NHSG"); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4212 | } else { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4213 | type_ = merge ? CHUNK_TYPE("HPSG") : CHUNK_TYPE("HPSO"); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4214 | } |
| 4215 | } |
| 4216 | |
| 4217 | ~HeapChunkContext() { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4218 | if (p_ > &buf_[0]) { |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4219 | Flush(); |
| 4220 | } |
| 4221 | } |
| 4222 | |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4223 | void SetChunkOverhead(size_t chunk_overhead) { |
| 4224 | chunk_overhead_ = chunk_overhead; |
| 4225 | } |
| 4226 | |
| 4227 | void ResetStartOfNextChunk() { |
| 4228 | startOfNextMemoryChunk_ = nullptr; |
| 4229 | } |
| 4230 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4231 | void EnsureHeader(const void* chunk_ptr) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4232 | if (!needHeader_) { |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4233 | return; |
| 4234 | } |
| 4235 | |
| 4236 | // Start a new HPSx chunk. |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4237 | JDWP::Write4BE(&p_, 1); // Heap id (bogus; we only have one heap). |
| 4238 | JDWP::Write1BE(&p_, 8); // Size of allocation unit, in bytes. |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4239 | |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4240 | JDWP::Write4BE(&p_, reinterpret_cast<uintptr_t>(chunk_ptr)); // virtual address of segment start. |
| 4241 | JDWP::Write4BE(&p_, 0); // offset of this piece (relative to the virtual address). |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4242 | // [u4]: length of piece, in allocation units |
| 4243 | // We won't know this until we're done, so save the offset and stuff in a dummy value. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4244 | pieceLenField_ = p_; |
| 4245 | JDWP::Write4BE(&p_, 0x55555555); |
| 4246 | needHeader_ = false; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4247 | } |
| 4248 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4249 | void Flush() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4250 | if (pieceLenField_ == nullptr) { |
Ian Rogers | d636b06 | 2013-01-18 17:51:18 -0800 | [diff] [blame] | 4251 | // Flush immediately post Reset (maybe back-to-back Flush). Ignore. |
| 4252 | CHECK(needHeader_); |
| 4253 | return; |
| 4254 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4255 | // Patch the "length of piece" field. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4256 | CHECK_LE(&buf_[0], pieceLenField_); |
| 4257 | CHECK_LE(pieceLenField_, p_); |
| 4258 | JDWP::Set4BE(pieceLenField_, totalAllocationUnits_); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4259 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4260 | Dbg::DdmSendChunk(type_, p_ - &buf_[0], &buf_[0]); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4261 | Reset(); |
| 4262 | } |
| 4263 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4264 | static void HeapChunkJavaCallback(void* start, void* end, size_t used_bytes, void* arg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4265 | SHARED_LOCKS_REQUIRED(Locks::heap_bitmap_lock_, |
| 4266 | Locks::mutator_lock_) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4267 | reinterpret_cast<HeapChunkContext*>(arg)->HeapChunkJavaCallback(start, end, used_bytes); |
| 4268 | } |
| 4269 | |
| 4270 | static void HeapChunkNativeCallback(void* start, void* end, size_t used_bytes, void* arg) |
| 4271 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4272 | reinterpret_cast<HeapChunkContext*>(arg)->HeapChunkNativeCallback(start, end, used_bytes); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4273 | } |
| 4274 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4275 | private: |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4276 | enum { ALLOCATION_UNIT_SIZE = 8 }; |
| 4277 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4278 | void Reset() { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4279 | p_ = &buf_[0]; |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4280 | ResetStartOfNextChunk(); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4281 | totalAllocationUnits_ = 0; |
| 4282 | needHeader_ = true; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4283 | pieceLenField_ = nullptr; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4284 | } |
| 4285 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4286 | bool IsNative() const { |
| 4287 | return type_ == CHUNK_TYPE("NHSG"); |
| 4288 | } |
| 4289 | |
| 4290 | // Returns true if the object is not an empty chunk. |
| 4291 | bool ProcessRecord(void* start, size_t used_bytes) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4292 | // Note: heap call backs cannot manipulate the heap upon which they are crawling, care is taken |
| 4293 | // in the following code not to allocate memory, by ensuring buf_ is of the correct size |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4294 | if (used_bytes == 0) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4295 | if (start == nullptr) { |
| 4296 | // Reset for start of new heap. |
| 4297 | startOfNextMemoryChunk_ = nullptr; |
| 4298 | Flush(); |
| 4299 | } |
| 4300 | // Only process in use memory so that free region information |
| 4301 | // also includes dlmalloc book keeping. |
| 4302 | return false; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4303 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4304 | if (startOfNextMemoryChunk_ != nullptr) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4305 | // Transmit any pending free memory. Native free memory of over kMaxFreeLen could be because |
| 4306 | // of the use of mmaps, so don't report. If not free memory then start a new segment. |
| 4307 | bool flush = true; |
| 4308 | if (start > startOfNextMemoryChunk_) { |
| 4309 | const size_t kMaxFreeLen = 2 * kPageSize; |
| 4310 | void* free_start = startOfNextMemoryChunk_; |
| 4311 | void* free_end = start; |
| 4312 | const size_t free_len = |
| 4313 | reinterpret_cast<uintptr_t>(free_end) - reinterpret_cast<uintptr_t>(free_start); |
| 4314 | if (!IsNative() || free_len < kMaxFreeLen) { |
| 4315 | AppendChunk(HPSG_STATE(SOLIDITY_FREE, 0), free_start, free_len, IsNative()); |
| 4316 | flush = false; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4317 | } |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4318 | } |
| 4319 | if (flush) { |
| 4320 | startOfNextMemoryChunk_ = nullptr; |
| 4321 | Flush(); |
| 4322 | } |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4323 | } |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4324 | return true; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4325 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4326 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4327 | void HeapChunkNativeCallback(void* start, void* /*end*/, size_t used_bytes) |
| 4328 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4329 | if (ProcessRecord(start, used_bytes)) { |
| 4330 | uint8_t state = ExamineNativeObject(start); |
| 4331 | AppendChunk(state, start, used_bytes + chunk_overhead_, true /*is_native*/); |
| 4332 | startOfNextMemoryChunk_ = reinterpret_cast<char*>(start) + used_bytes + chunk_overhead_; |
| 4333 | } |
| 4334 | } |
| 4335 | |
| 4336 | void HeapChunkJavaCallback(void* start, void* /*end*/, size_t used_bytes) |
| 4337 | SHARED_LOCKS_REQUIRED(Locks::heap_bitmap_lock_, Locks::mutator_lock_) { |
| 4338 | if (ProcessRecord(start, used_bytes)) { |
| 4339 | // Determine the type of this chunk. |
| 4340 | // OLD-TODO: if context.merge, see if this chunk is different from the last chunk. |
| 4341 | // If it's the same, we should combine them. |
| 4342 | uint8_t state = ExamineJavaObject(reinterpret_cast<mirror::Object*>(start)); |
| 4343 | AppendChunk(state, start, used_bytes + chunk_overhead_, false /*is_native*/); |
| 4344 | startOfNextMemoryChunk_ = reinterpret_cast<char*>(start) + used_bytes + chunk_overhead_; |
| 4345 | } |
| 4346 | } |
| 4347 | |
| 4348 | void AppendChunk(uint8_t state, void* ptr, size_t length, bool is_native) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4349 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4350 | // Make sure there's enough room left in the buffer. |
| 4351 | // We need to use two bytes for every fractional 256 allocation units used by the chunk plus |
| 4352 | // 17 bytes for any header. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4353 | const size_t needed = ((RoundUp(length / ALLOCATION_UNIT_SIZE, 256) / 256) * 2) + 17; |
| 4354 | size_t byte_left = &buf_.back() - p_; |
| 4355 | if (byte_left < needed) { |
| 4356 | if (is_native) { |
Pavel Vyssotski | 7522c74 | 2014-12-08 13:38:26 +0600 | [diff] [blame] | 4357 | // Cannot trigger memory allocation while walking native heap. |
Pavel Vyssotski | 7522c74 | 2014-12-08 13:38:26 +0600 | [diff] [blame] | 4358 | return; |
| 4359 | } |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4360 | Flush(); |
| 4361 | } |
| 4362 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4363 | byte_left = &buf_.back() - p_; |
| 4364 | if (byte_left < needed) { |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4365 | LOG(WARNING) << "Chunk is too big to transmit (chunk_len=" << length << ", " |
| 4366 | << needed << " bytes)"; |
| 4367 | return; |
| 4368 | } |
| 4369 | EnsureHeader(ptr); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4370 | // Write out the chunk description. |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4371 | length /= ALLOCATION_UNIT_SIZE; // Convert to allocation units. |
| 4372 | totalAllocationUnits_ += length; |
| 4373 | while (length > 256) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4374 | *p_++ = state | HPSG_PARTIAL; |
| 4375 | *p_++ = 255; // length - 1 |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4376 | length -= 256; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4377 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4378 | *p_++ = state; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4379 | *p_++ = length - 1; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4380 | } |
| 4381 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4382 | uint8_t ExamineNativeObject(const void* p) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4383 | return p == nullptr ? HPSG_STATE(SOLIDITY_FREE, 0) : HPSG_STATE(SOLIDITY_HARD, KIND_NATIVE); |
| 4384 | } |
| 4385 | |
| 4386 | uint8_t ExamineJavaObject(mirror::Object* o) |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4387 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, Locks::heap_bitmap_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4388 | if (o == nullptr) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4389 | return HPSG_STATE(SOLIDITY_FREE, 0); |
| 4390 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4391 | // It's an allocated chunk. Figure out what it is. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4392 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 4393 | if (!heap->IsLiveObjectLocked(o)) { |
| 4394 | LOG(ERROR) << "Invalid object in managed heap: " << o; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4395 | return HPSG_STATE(SOLIDITY_HARD, KIND_NATIVE); |
| 4396 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4397 | mirror::Class* c = o->GetClass(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4398 | if (c == nullptr) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4399 | // The object was probably just created but hasn't been initialized yet. |
| 4400 | return HPSG_STATE(SOLIDITY_HARD, KIND_OBJECT); |
| 4401 | } |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4402 | if (!heap->IsValidObjectAddress(c)) { |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4403 | LOG(ERROR) << "Invalid class for managed heap object: " << o << " " << c; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4404 | return HPSG_STATE(SOLIDITY_HARD, KIND_UNKNOWN); |
| 4405 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4406 | if (c->IsClassClass()) { |
| 4407 | return HPSG_STATE(SOLIDITY_HARD, KIND_CLASS_OBJECT); |
| 4408 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4409 | if (c->IsArrayClass()) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4410 | switch (c->GetComponentSize()) { |
| 4411 | case 1: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_1); |
| 4412 | case 2: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_2); |
| 4413 | case 4: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_4); |
| 4414 | case 8: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_8); |
| 4415 | } |
| 4416 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4417 | return HPSG_STATE(SOLIDITY_HARD, KIND_OBJECT); |
| 4418 | } |
| 4419 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4420 | std::vector<uint8_t> buf_; |
| 4421 | uint8_t* p_; |
| 4422 | uint8_t* pieceLenField_; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4423 | void* startOfNextMemoryChunk_; |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4424 | size_t totalAllocationUnits_; |
| 4425 | uint32_t type_; |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4426 | bool needHeader_; |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4427 | size_t chunk_overhead_; |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4428 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4429 | DISALLOW_COPY_AND_ASSIGN(HeapChunkContext); |
| 4430 | }; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4431 | |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4432 | static void BumpPointerSpaceCallback(mirror::Object* obj, void* arg) |
| 4433 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) EXCLUSIVE_LOCKS_REQUIRED(Locks::heap_bitmap_lock_) { |
| 4434 | const size_t size = RoundUp(obj->SizeOf(), kObjectAlignment); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4435 | HeapChunkContext::HeapChunkJavaCallback( |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4436 | obj, reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(obj) + size), size, arg); |
| 4437 | } |
| 4438 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4439 | void Dbg::DdmSendHeapSegments(bool native) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4440 | Dbg::HpsgWhen when = native ? gDdmNhsgWhen : gDdmHpsgWhen; |
| 4441 | Dbg::HpsgWhat what = native ? gDdmNhsgWhat : gDdmHpsgWhat; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4442 | if (when == HPSG_WHEN_NEVER) { |
| 4443 | return; |
| 4444 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4445 | // Figure out what kind of chunks we'll be sending. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4446 | CHECK(what == HPSG_WHAT_MERGED_OBJECTS || what == HPSG_WHAT_DISTINCT_OBJECTS) |
| 4447 | << static_cast<int>(what); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4448 | |
| 4449 | // First, send a heap start chunk. |
| 4450 | uint8_t heap_id[4]; |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4451 | JDWP::Set4BE(&heap_id[0], 1); // Heap id (bogus; we only have one heap). |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4452 | Dbg::DdmSendChunk(native ? CHUNK_TYPE("NHST") : CHUNK_TYPE("HPST"), sizeof(heap_id), heap_id); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 4453 | Thread* self = Thread::Current(); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 4454 | Locks::mutator_lock_->AssertSharedHeld(self); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 4455 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4456 | // Send a series of heap segment chunks. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4457 | HeapChunkContext context(what == HPSG_WHAT_MERGED_OBJECTS, native); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4458 | if (native) { |
Ian Rogers | 872dd82 | 2014-10-30 11:19:14 -0700 | [diff] [blame] | 4459 | #if defined(HAVE_ANDROID_OS) && defined(USE_DLMALLOC) |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4460 | dlmalloc_inspect_all(HeapChunkContext::HeapChunkNativeCallback, &context); |
| 4461 | HeapChunkContext::HeapChunkNativeCallback(nullptr, nullptr, 0, &context); // Indicate end of a space. |
Christopher Ferris | c4ddc04 | 2014-05-13 14:47:50 -0700 | [diff] [blame] | 4462 | #else |
| 4463 | UNIMPLEMENTED(WARNING) << "Native heap inspection is only supported with dlmalloc"; |
| 4464 | #endif |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4465 | } else { |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 4466 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4467 | for (const auto& space : heap->GetContinuousSpaces()) { |
| 4468 | if (space->IsDlMallocSpace()) { |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4469 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4470 | // dlmalloc's chunk header is 2 * sizeof(size_t), but if the previous chunk is in use for an |
| 4471 | // allocation then the first sizeof(size_t) may belong to it. |
| 4472 | context.SetChunkOverhead(sizeof(size_t)); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4473 | space->AsDlMallocSpace()->Walk(HeapChunkContext::HeapChunkJavaCallback, &context); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4474 | } else if (space->IsRosAllocSpace()) { |
| 4475 | context.SetChunkOverhead(0); |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4476 | // Need to acquire the mutator lock before the heap bitmap lock with exclusive access since |
| 4477 | // RosAlloc's internal logic doesn't know to release and reacquire the heap bitmap lock. |
| 4478 | self->TransitionFromRunnableToSuspended(kSuspended); |
| 4479 | ThreadList* tl = Runtime::Current()->GetThreadList(); |
| 4480 | tl->SuspendAll(); |
| 4481 | { |
| 4482 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4483 | space->AsRosAllocSpace()->Walk(HeapChunkContext::HeapChunkJavaCallback, &context); |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4484 | } |
| 4485 | tl->ResumeAll(); |
| 4486 | self->TransitionFromSuspendedToRunnable(); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4487 | } else if (space->IsBumpPointerSpace()) { |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4488 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4489 | context.SetChunkOverhead(0); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4490 | space->AsBumpPointerSpace()->Walk(BumpPointerSpaceCallback, &context); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4491 | HeapChunkContext::HeapChunkJavaCallback(nullptr, nullptr, 0, &context); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4492 | } else { |
| 4493 | UNIMPLEMENTED(WARNING) << "Not counting objects in space " << *space; |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 4494 | } |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4495 | context.ResetStartOfNextChunk(); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 4496 | } |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4497 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | e0f0cb3 | 2012-08-28 11:26:00 -0700 | [diff] [blame] | 4498 | // Walk the large objects, these are not in the AllocSpace. |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4499 | context.SetChunkOverhead(0); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4500 | heap->GetLargeObjectsSpace()->Walk(HeapChunkContext::HeapChunkJavaCallback, &context); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4501 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4502 | |
| 4503 | // Finally, send a heap end chunk. |
| 4504 | Dbg::DdmSendChunk(native ? CHUNK_TYPE("NHEN") : CHUNK_TYPE("HPEN"), sizeof(heap_id), heap_id); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 4505 | } |
| 4506 | |
Elliott Hughes | b1a5879 | 2013-07-11 18:10:58 -0700 | [diff] [blame] | 4507 | static size_t GetAllocTrackerMax() { |
| 4508 | #ifdef HAVE_ANDROID_OS |
| 4509 | // Check whether there's a system property overriding the number of records. |
| 4510 | const char* propertyName = "dalvik.vm.allocTrackerMax"; |
| 4511 | char allocRecordMaxString[PROPERTY_VALUE_MAX]; |
| 4512 | if (property_get(propertyName, allocRecordMaxString, "") > 0) { |
| 4513 | char* end; |
| 4514 | size_t value = strtoul(allocRecordMaxString, &end, 10); |
| 4515 | if (*end != '\0') { |
Ruben Brunk | 3e47a74 | 2013-09-09 17:56:07 -0700 | [diff] [blame] | 4516 | LOG(ERROR) << "Ignoring " << propertyName << " '" << allocRecordMaxString |
| 4517 | << "' --- invalid"; |
Elliott Hughes | b1a5879 | 2013-07-11 18:10:58 -0700 | [diff] [blame] | 4518 | return kDefaultNumAllocRecords; |
| 4519 | } |
| 4520 | if (!IsPowerOfTwo(value)) { |
Ruben Brunk | 3e47a74 | 2013-09-09 17:56:07 -0700 | [diff] [blame] | 4521 | LOG(ERROR) << "Ignoring " << propertyName << " '" << allocRecordMaxString |
| 4522 | << "' --- not power of two"; |
Elliott Hughes | b1a5879 | 2013-07-11 18:10:58 -0700 | [diff] [blame] | 4523 | return kDefaultNumAllocRecords; |
| 4524 | } |
| 4525 | return value; |
| 4526 | } |
| 4527 | #endif |
| 4528 | return kDefaultNumAllocRecords; |
| 4529 | } |
| 4530 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4531 | void Dbg::SetAllocTrackingEnabled(bool enable) { |
| 4532 | Thread* self = Thread::Current(); |
| 4533 | if (enable) { |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4534 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4535 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
| 4536 | if (recent_allocation_records_ != nullptr) { |
| 4537 | return; // Already enabled, bail. |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4538 | } |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4539 | alloc_record_max_ = GetAllocTrackerMax(); |
| 4540 | LOG(INFO) << "Enabling alloc tracker (" << alloc_record_max_ << " entries of " |
| 4541 | << kMaxAllocRecordStackDepth << " frames, taking " |
| 4542 | << PrettySize(sizeof(AllocRecord) * alloc_record_max_) << ")"; |
| 4543 | DCHECK_EQ(alloc_record_head_, 0U); |
| 4544 | DCHECK_EQ(alloc_record_count_, 0U); |
| 4545 | recent_allocation_records_ = new AllocRecord[alloc_record_max_]; |
| 4546 | CHECK(recent_allocation_records_ != nullptr); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4547 | } |
Mathieu Chartier | 9ef78b5 | 2014-09-25 17:03:12 -0700 | [diff] [blame] | 4548 | Runtime::Current()->GetInstrumentation()->InstrumentQuickAllocEntryPoints(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4549 | } else { |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4550 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4551 | ScopedObjectAccess soa(self); // For type_cache_.Clear(); |
| 4552 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
| 4553 | if (recent_allocation_records_ == nullptr) { |
| 4554 | return; // Already disabled, bail. |
| 4555 | } |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 4556 | LOG(INFO) << "Disabling alloc tracker"; |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4557 | delete[] recent_allocation_records_; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4558 | recent_allocation_records_ = nullptr; |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4559 | alloc_record_head_ = 0; |
| 4560 | alloc_record_count_ = 0; |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 4561 | type_cache_.Clear(); |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4562 | } |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4563 | // If an allocation comes in before we uninstrument, we will safely drop it on the floor. |
Mathieu Chartier | 9ef78b5 | 2014-09-25 17:03:12 -0700 | [diff] [blame] | 4564 | Runtime::Current()->GetInstrumentation()->UninstrumentQuickAllocEntryPoints(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4565 | } |
| 4566 | } |
| 4567 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 4568 | struct AllocRecordStackVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 4569 | AllocRecordStackVisitor(Thread* thread, AllocRecord* record_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4570 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 4571 | : StackVisitor(thread, nullptr), record(record_in), depth(0) {} |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4572 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4573 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 4574 | // annotalysis. |
| 4575 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4576 | if (depth >= kMaxAllocRecordStackDepth) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 4577 | return false; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4578 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4579 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 4580 | if (!m->IsRuntimeMethod()) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4581 | record->StackElement(depth)->SetMethod(m); |
| 4582 | record->StackElement(depth)->SetDexPc(GetDexPc()); |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 4583 | ++depth; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4584 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 4585 | return true; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4586 | } |
| 4587 | |
| 4588 | ~AllocRecordStackVisitor() { |
| 4589 | // Clear out any unused stack trace elements. |
| 4590 | for (; depth < kMaxAllocRecordStackDepth; ++depth) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4591 | record->StackElement(depth)->SetMethod(nullptr); |
| 4592 | record->StackElement(depth)->SetDexPc(0); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4593 | } |
| 4594 | } |
| 4595 | |
| 4596 | AllocRecord* record; |
| 4597 | size_t depth; |
| 4598 | }; |
| 4599 | |
Ian Rogers | 844506b | 2014-09-12 19:59:33 -0700 | [diff] [blame] | 4600 | void Dbg::RecordAllocation(Thread* self, mirror::Class* type, size_t byte_count) { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4601 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4602 | if (recent_allocation_records_ == nullptr) { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4603 | // In the process of shutting down recording, bail. |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4604 | return; |
| 4605 | } |
| 4606 | |
| 4607 | // Advance and clip. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4608 | if (++alloc_record_head_ == alloc_record_max_) { |
| 4609 | alloc_record_head_ = 0; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4610 | } |
| 4611 | |
| 4612 | // Fill in the basics. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4613 | AllocRecord* record = &recent_allocation_records_[alloc_record_head_]; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4614 | record->SetType(type); |
| 4615 | record->SetByteCount(byte_count); |
| 4616 | record->SetThinLockId(self->GetThreadId()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4617 | |
| 4618 | // Fill in the stack trace. |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 4619 | AllocRecordStackVisitor visitor(self, record); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 4620 | visitor.WalkStack(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4621 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4622 | if (alloc_record_count_ < alloc_record_max_) { |
| 4623 | ++alloc_record_count_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4624 | } |
| 4625 | } |
| 4626 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4627 | // Returns the index of the head element. |
| 4628 | // |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4629 | // We point at the most-recently-written record, so if alloc_record_count_ is 1 |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4630 | // we want to use the current element. Take "head+1" and subtract count |
| 4631 | // from it. |
| 4632 | // |
| 4633 | // We need to handle underflow in our circular buffer, so we add |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4634 | // alloc_record_max_ and then mask it back down. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4635 | size_t Dbg::HeadIndex() { |
| 4636 | return (Dbg::alloc_record_head_ + 1 + Dbg::alloc_record_max_ - Dbg::alloc_record_count_) & |
| 4637 | (Dbg::alloc_record_max_ - 1); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4638 | } |
| 4639 | |
| 4640 | void Dbg::DumpRecentAllocations() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4641 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4642 | MutexLock mu(soa.Self(), *Locks::alloc_tracker_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4643 | if (recent_allocation_records_ == nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4644 | LOG(INFO) << "Not recording tracked allocations"; |
| 4645 | return; |
| 4646 | } |
| 4647 | |
| 4648 | // "i" is the head of the list. We want to start at the end of the |
| 4649 | // list and move forward to the tail. |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4650 | size_t i = HeadIndex(); |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4651 | const uint16_t capped_count = CappedAllocRecordCount(Dbg::alloc_record_count_); |
| 4652 | uint16_t count = capped_count; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4653 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4654 | LOG(INFO) << "Tracked allocations, (head=" << alloc_record_head_ << " count=" << count << ")"; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4655 | while (count--) { |
| 4656 | AllocRecord* record = &recent_allocation_records_[i]; |
| 4657 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4658 | LOG(INFO) << StringPrintf(" Thread %-2d %6zd bytes ", record->ThinLockId(), record->ByteCount()) |
| 4659 | << PrettyClass(record->Type()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4660 | |
| 4661 | for (size_t stack_frame = 0; stack_frame < kMaxAllocRecordStackDepth; ++stack_frame) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4662 | AllocRecordStackTraceElement* stack_element = record->StackElement(stack_frame); |
| 4663 | mirror::ArtMethod* m = stack_element->Method(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4664 | if (m == nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4665 | break; |
| 4666 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4667 | LOG(INFO) << " " << PrettyMethod(m) << " line " << stack_element->LineNumber(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4668 | } |
| 4669 | |
| 4670 | // pause periodically to help logcat catch up |
| 4671 | if ((count % 5) == 0) { |
| 4672 | usleep(40000); |
| 4673 | } |
| 4674 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4675 | i = (i + 1) & (alloc_record_max_ - 1); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4676 | } |
| 4677 | } |
| 4678 | |
| 4679 | class StringTable { |
| 4680 | public: |
| 4681 | StringTable() { |
| 4682 | } |
| 4683 | |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 4684 | void Add(const std::string& str) { |
| 4685 | table_.insert(str); |
| 4686 | } |
| 4687 | |
| 4688 | void Add(const char* str) { |
| 4689 | table_.insert(str); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4690 | } |
| 4691 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4692 | size_t IndexOf(const char* s) const { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4693 | auto it = table_.find(s); |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4694 | if (it == table_.end()) { |
| 4695 | LOG(FATAL) << "IndexOf(\"" << s << "\") failed"; |
| 4696 | } |
| 4697 | return std::distance(table_.begin(), it); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4698 | } |
| 4699 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4700 | size_t Size() const { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4701 | return table_.size(); |
| 4702 | } |
| 4703 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4704 | void WriteTo(std::vector<uint8_t>& bytes) const { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4705 | for (const std::string& str : table_) { |
| 4706 | const char* s = str.c_str(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4707 | size_t s_len = CountModifiedUtf8Chars(s); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 4708 | std::unique_ptr<uint16_t> s_utf16(new uint16_t[s_len]); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4709 | ConvertModifiedUtf8ToUtf16(s_utf16.get(), s); |
| 4710 | JDWP::AppendUtf16BE(bytes, s_utf16.get(), s_len); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4711 | } |
| 4712 | } |
| 4713 | |
| 4714 | private: |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4715 | std::set<std::string> table_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4716 | DISALLOW_COPY_AND_ASSIGN(StringTable); |
| 4717 | }; |
| 4718 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4719 | static const char* GetMethodSourceFile(mirror::ArtMethod* method) |
Sebastien Hertz | 280286a | 2014-04-28 09:26:50 +0200 | [diff] [blame] | 4720 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4721 | DCHECK(method != nullptr); |
| 4722 | const char* source_file = method->GetDeclaringClassSourceFile(); |
Sebastien Hertz | 280286a | 2014-04-28 09:26:50 +0200 | [diff] [blame] | 4723 | return (source_file != nullptr) ? source_file : ""; |
| 4724 | } |
| 4725 | |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4726 | /* |
| 4727 | * The data we send to DDMS contains everything we have recorded. |
| 4728 | * |
| 4729 | * Message header (all values big-endian): |
| 4730 | * (1b) message header len (to allow future expansion); includes itself |
| 4731 | * (1b) entry header len |
| 4732 | * (1b) stack frame len |
| 4733 | * (2b) number of entries |
| 4734 | * (4b) offset to string table from start of message |
| 4735 | * (2b) number of class name strings |
| 4736 | * (2b) number of method name strings |
| 4737 | * (2b) number of source file name strings |
| 4738 | * For each entry: |
| 4739 | * (4b) total allocation size |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 4740 | * (2b) thread id |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4741 | * (2b) allocated object's class name index |
| 4742 | * (1b) stack depth |
| 4743 | * For each stack frame: |
| 4744 | * (2b) method's class name |
| 4745 | * (2b) method name |
| 4746 | * (2b) method source file |
| 4747 | * (2b) line number, clipped to 32767; -2 if native; -1 if no source |
| 4748 | * (xb) class name strings |
| 4749 | * (xb) method name strings |
| 4750 | * (xb) source file strings |
| 4751 | * |
| 4752 | * As with other DDM traffic, strings are sent as a 4-byte length |
| 4753 | * followed by UTF-16 data. |
| 4754 | * |
| 4755 | * We send up 16-bit unsigned indexes into string tables. In theory there |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4756 | * can be (kMaxAllocRecordStackDepth * alloc_record_max_) unique strings in |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4757 | * each table, but in practice there should be far fewer. |
| 4758 | * |
| 4759 | * The chief reason for using a string table here is to keep the size of |
| 4760 | * the DDMS message to a minimum. This is partly to make the protocol |
| 4761 | * efficient, but also because we have to form the whole thing up all at |
| 4762 | * once in a memory buffer. |
| 4763 | * |
| 4764 | * We use separate string tables for class names, method names, and source |
| 4765 | * files to keep the indexes small. There will generally be no overlap |
| 4766 | * between the contents of these tables. |
| 4767 | */ |
| 4768 | jbyteArray Dbg::GetRecentAllocations() { |
Ian Rogers | cf7f191 | 2014-10-22 22:06:39 -0700 | [diff] [blame] | 4769 | if ((false)) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4770 | DumpRecentAllocations(); |
| 4771 | } |
| 4772 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4773 | Thread* self = Thread::Current(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4774 | std::vector<uint8_t> bytes; |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4775 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4776 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4777 | // |
| 4778 | // Part 1: generate string tables. |
| 4779 | // |
| 4780 | StringTable class_names; |
| 4781 | StringTable method_names; |
| 4782 | StringTable filenames; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4783 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4784 | const uint16_t capped_count = CappedAllocRecordCount(Dbg::alloc_record_count_); |
| 4785 | uint16_t count = capped_count; |
| 4786 | size_t idx = HeadIndex(); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4787 | while (count--) { |
| 4788 | AllocRecord* record = &recent_allocation_records_[idx]; |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 4789 | std::string temp; |
| 4790 | class_names.Add(record->Type()->GetDescriptor(&temp)); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4791 | for (size_t i = 0; i < kMaxAllocRecordStackDepth; i++) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4792 | mirror::ArtMethod* m = record->StackElement(i)->Method(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4793 | if (m != nullptr) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4794 | class_names.Add(m->GetDeclaringClassDescriptor()); |
| 4795 | method_names.Add(m->GetName()); |
| 4796 | filenames.Add(GetMethodSourceFile(m)); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4797 | } |
| 4798 | } |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4799 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4800 | idx = (idx + 1) & (alloc_record_max_ - 1); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4801 | } |
| 4802 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4803 | LOG(INFO) << "allocation records: " << capped_count; |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4804 | |
| 4805 | // |
| 4806 | // Part 2: Generate the output and store it in the buffer. |
| 4807 | // |
| 4808 | |
| 4809 | // (1b) message header len (to allow future expansion); includes itself |
| 4810 | // (1b) entry header len |
| 4811 | // (1b) stack frame len |
| 4812 | const int kMessageHeaderLen = 15; |
| 4813 | const int kEntryHeaderLen = 9; |
| 4814 | const int kStackFrameLen = 8; |
| 4815 | JDWP::Append1BE(bytes, kMessageHeaderLen); |
| 4816 | JDWP::Append1BE(bytes, kEntryHeaderLen); |
| 4817 | JDWP::Append1BE(bytes, kStackFrameLen); |
| 4818 | |
| 4819 | // (2b) number of entries |
| 4820 | // (4b) offset to string table from start of message |
| 4821 | // (2b) number of class name strings |
| 4822 | // (2b) number of method name strings |
| 4823 | // (2b) number of source file name strings |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4824 | JDWP::Append2BE(bytes, capped_count); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4825 | size_t string_table_offset = bytes.size(); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4826 | JDWP::Append4BE(bytes, 0); // We'll patch this later... |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4827 | JDWP::Append2BE(bytes, class_names.Size()); |
| 4828 | JDWP::Append2BE(bytes, method_names.Size()); |
| 4829 | JDWP::Append2BE(bytes, filenames.Size()); |
| 4830 | |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4831 | idx = HeadIndex(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 4832 | std::string temp; |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4833 | for (count = capped_count; count != 0; --count) { |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4834 | // For each entry: |
| 4835 | // (4b) total allocation size |
| 4836 | // (2b) thread id |
| 4837 | // (2b) allocated object's class name index |
| 4838 | // (1b) stack depth |
| 4839 | AllocRecord* record = &recent_allocation_records_[idx]; |
| 4840 | size_t stack_depth = record->GetDepth(); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4841 | size_t allocated_object_class_name_index = |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 4842 | class_names.IndexOf(record->Type()->GetDescriptor(&temp)); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4843 | JDWP::Append4BE(bytes, record->ByteCount()); |
| 4844 | JDWP::Append2BE(bytes, record->ThinLockId()); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4845 | JDWP::Append2BE(bytes, allocated_object_class_name_index); |
| 4846 | JDWP::Append1BE(bytes, stack_depth); |
| 4847 | |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4848 | for (size_t stack_frame = 0; stack_frame < stack_depth; ++stack_frame) { |
| 4849 | // For each stack frame: |
| 4850 | // (2b) method's class name |
| 4851 | // (2b) method name |
| 4852 | // (2b) method source file |
| 4853 | // (2b) line number, clipped to 32767; -2 if native; -1 if no source |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4854 | mirror::ArtMethod* m = record->StackElement(stack_frame)->Method(); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4855 | size_t class_name_index = class_names.IndexOf(m->GetDeclaringClassDescriptor()); |
| 4856 | size_t method_name_index = method_names.IndexOf(m->GetName()); |
| 4857 | size_t file_name_index = filenames.IndexOf(GetMethodSourceFile(m)); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4858 | JDWP::Append2BE(bytes, class_name_index); |
| 4859 | JDWP::Append2BE(bytes, method_name_index); |
| 4860 | JDWP::Append2BE(bytes, file_name_index); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4861 | JDWP::Append2BE(bytes, record->StackElement(stack_frame)->LineNumber()); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4862 | } |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4863 | idx = (idx + 1) & (alloc_record_max_ - 1); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4864 | } |
| 4865 | |
| 4866 | // (xb) class name strings |
| 4867 | // (xb) method name strings |
| 4868 | // (xb) source file strings |
| 4869 | JDWP::Set4BE(&bytes[string_table_offset], bytes.size()); |
| 4870 | class_names.WriteTo(bytes); |
| 4871 | method_names.WriteTo(bytes); |
| 4872 | filenames.WriteTo(bytes); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4873 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4874 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4875 | jbyteArray result = env->NewByteArray(bytes.size()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4876 | if (result != nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4877 | env->SetByteArrayRegion(result, 0, bytes.size(), reinterpret_cast<const jbyte*>(&bytes[0])); |
| 4878 | } |
| 4879 | return result; |
| 4880 | } |
| 4881 | |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 4882 | mirror::ArtMethod* DeoptimizationRequest::Method() const { |
| 4883 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 4884 | return soa.DecodeMethod(method_); |
| 4885 | } |
| 4886 | |
| 4887 | void DeoptimizationRequest::SetMethod(mirror::ArtMethod* m) { |
| 4888 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 4889 | method_ = soa.EncodeMethod(m); |
| 4890 | } |
| 4891 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 4892 | } // namespace art |