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()); |
Mathieu Chartier | 4c4d609 | 2015-01-22 17:02:27 -0800 | [diff] [blame] | 108 | JNIEnv* const env = soa.Env(); |
| 109 | ScopedLocalRef<jobject> local_ref(soa.Env(), soa.AddLocalReference<jobject>(t)); |
| 110 | const int32_t hash_code = soa.Decode<mirror::Class*>(local_ref.get())->IdentityHashCode(); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 111 | auto range = objects_.equal_range(hash_code); |
| 112 | for (auto it = range.first; it != range.second; ++it) { |
Mathieu Chartier | 4c4d609 | 2015-01-22 17:02:27 -0800 | [diff] [blame] | 113 | if (soa.Decode<mirror::Class*>(it->second) == soa.Decode<mirror::Class*>(local_ref.get())) { |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 114 | // Found a matching weak global, return it. |
| 115 | return it->second; |
| 116 | } |
| 117 | } |
Mathieu Chartier | 4c4d609 | 2015-01-22 17:02:27 -0800 | [diff] [blame] | 118 | const jobject weak_global = env->NewWeakGlobalRef(local_ref.get()); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 119 | objects_.insert(std::make_pair(hash_code, weak_global)); |
| 120 | return weak_global; |
| 121 | } |
| 122 | |
| 123 | void Dbg::TypeCache::Clear() { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 124 | JavaVMExt* vm = Runtime::Current()->GetJavaVM(); |
| 125 | Thread* self = Thread::Current(); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 126 | for (const auto& p : objects_) { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 127 | vm->DeleteWeakGlobalRef(self, p.second); |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 128 | } |
| 129 | objects_.clear(); |
| 130 | } |
| 131 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 132 | class AllocRecord { |
| 133 | public: |
| 134 | AllocRecord() : type_(nullptr), byte_count_(0), thin_lock_id_(0) {} |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 135 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 136 | mirror::Class* Type() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 137 | return down_cast<mirror::Class*>(Thread::Current()->DecodeJObject(type_)); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 138 | } |
| 139 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 140 | void SetType(mirror::Class* t) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, |
| 141 | Locks::alloc_tracker_lock_) { |
| 142 | type_ = Dbg::type_cache_.Add(t); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | size_t GetDepth() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 146 | size_t depth = 0; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 147 | while (depth < kMaxAllocRecordStackDepth && stack_[depth].Method() != nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 148 | ++depth; |
| 149 | } |
| 150 | return depth; |
| 151 | } |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 152 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 153 | size_t ByteCount() const { |
| 154 | return byte_count_; |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 155 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 156 | |
| 157 | void SetByteCount(size_t count) { |
| 158 | byte_count_ = count; |
| 159 | } |
| 160 | |
| 161 | uint16_t ThinLockId() const { |
| 162 | return thin_lock_id_; |
| 163 | } |
| 164 | |
| 165 | void SetThinLockId(uint16_t id) { |
| 166 | thin_lock_id_ = id; |
| 167 | } |
| 168 | |
| 169 | AllocRecordStackTraceElement* StackElement(size_t index) { |
| 170 | DCHECK_LT(index, kMaxAllocRecordStackDepth); |
| 171 | return &stack_[index]; |
| 172 | } |
| 173 | |
| 174 | private: |
| 175 | jobject type_; // This is a weak global. |
| 176 | size_t byte_count_; |
| 177 | uint16_t thin_lock_id_; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 178 | AllocRecordStackTraceElement stack_[kMaxAllocRecordStackDepth]; // Unused entries have nullptr method. |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 179 | }; |
| 180 | |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 181 | class Breakpoint { |
| 182 | public: |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 183 | Breakpoint(mirror::ArtMethod* method, uint32_t dex_pc, |
| 184 | DeoptimizationRequest::Kind deoptimization_kind) |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 185 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 186 | : method_(nullptr), dex_pc_(dex_pc), deoptimization_kind_(deoptimization_kind) { |
| 187 | CHECK(deoptimization_kind_ == DeoptimizationRequest::kNothing || |
| 188 | deoptimization_kind_ == DeoptimizationRequest::kSelectiveDeoptimization || |
| 189 | deoptimization_kind_ == DeoptimizationRequest::kFullDeoptimization); |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 190 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 191 | method_ = soa.EncodeMethod(method); |
| 192 | } |
| 193 | |
| 194 | Breakpoint(const Breakpoint& other) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
| 195 | : method_(nullptr), dex_pc_(other.dex_pc_), |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 196 | deoptimization_kind_(other.deoptimization_kind_) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 197 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 198 | method_ = soa.EncodeMethod(other.Method()); |
| 199 | } |
| 200 | |
| 201 | mirror::ArtMethod* Method() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 202 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 203 | return soa.DecodeMethod(method_); |
| 204 | } |
| 205 | |
| 206 | uint32_t DexPc() const { |
| 207 | return dex_pc_; |
| 208 | } |
| 209 | |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 210 | DeoptimizationRequest::Kind GetDeoptimizationKind() const { |
| 211 | return deoptimization_kind_; |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | private: |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 215 | // The location of this breakpoint. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 216 | jmethodID method_; |
| 217 | uint32_t dex_pc_; |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 218 | |
| 219 | // Indicates whether breakpoint needs full deoptimization or selective deoptimization. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 220 | DeoptimizationRequest::Kind deoptimization_kind_; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 221 | }; |
| 222 | |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 223 | static std::ostream& operator<<(std::ostream& os, const Breakpoint& rhs) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 224 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 225 | os << StringPrintf("Breakpoint[%s @%#x]", PrettyMethod(rhs.Method()).c_str(), rhs.DexPc()); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 226 | return os; |
| 227 | } |
| 228 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 229 | class DebugInstrumentationListener FINAL : public instrumentation::InstrumentationListener { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 230 | public: |
| 231 | DebugInstrumentationListener() {} |
| 232 | virtual ~DebugInstrumentationListener() {} |
| 233 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 234 | void MethodEntered(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 235 | uint32_t dex_pc ATTRIBUTE_UNUSED) |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 236 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 237 | if (method->IsNative()) { |
| 238 | // TODO: post location events is a suspension point and native method entry stubs aren't. |
| 239 | return; |
| 240 | } |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 241 | Dbg::UpdateDebugger(thread, this_object, method, 0, Dbg::kMethodEntry, nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 242 | } |
| 243 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 244 | void MethodExited(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 245 | uint32_t dex_pc, const JValue& return_value) |
| 246 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 247 | if (method->IsNative()) { |
| 248 | // TODO: post location events is a suspension point and native method entry stubs aren't. |
| 249 | return; |
| 250 | } |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 251 | Dbg::UpdateDebugger(thread, this_object, method, dex_pc, Dbg::kMethodExit, &return_value); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 252 | } |
| 253 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 254 | void MethodUnwind(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 255 | uint32_t dex_pc) |
| 256 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 257 | // 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] | 258 | UNUSED(thread, this_object, method, dex_pc); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 259 | LOG(ERROR) << "Unexpected method unwind event in debugger " << PrettyMethod(method) |
Sebastien Hertz | 51db44a | 2013-11-19 10:00:29 +0100 | [diff] [blame] | 260 | << " " << dex_pc; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 261 | } |
| 262 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 263 | void DexPcMoved(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 264 | uint32_t new_dex_pc) |
| 265 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 266 | Dbg::UpdateDebugger(thread, this_object, method, new_dex_pc, 0, nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 267 | } |
| 268 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 269 | void FieldRead(Thread* thread, mirror::Object* this_object, mirror::ArtMethod* method, |
| 270 | uint32_t dex_pc, mirror::ArtField* field) |
| 271 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 272 | UNUSED(thread); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 273 | Dbg::PostFieldAccessEvent(method, dex_pc, this_object, field); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 274 | } |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 275 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 276 | void FieldWritten(Thread* thread ATTRIBUTE_UNUSED, mirror::Object* this_object, |
| 277 | mirror::ArtMethod* method, uint32_t dex_pc, mirror::ArtField* field, |
| 278 | const JValue& field_value) |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 279 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 280 | Dbg::PostFieldModificationEvent(method, dex_pc, this_object, field, &field_value); |
| 281 | } |
| 282 | |
Ian Rogers | 6a3c1fc | 2014-10-31 00:33:20 -0700 | [diff] [blame] | 283 | void ExceptionCaught(Thread* thread ATTRIBUTE_UNUSED, const ThrowLocation& throw_location, |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 284 | mirror::ArtMethod* catch_method, uint32_t catch_dex_pc, |
| 285 | mirror::Throwable* exception_object) |
| 286 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 287 | Dbg::PostException(throw_location, catch_method, catch_dex_pc, exception_object); |
| 288 | } |
| 289 | |
| 290 | private: |
| 291 | DISALLOW_COPY_AND_ASSIGN(DebugInstrumentationListener); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 292 | } gDebugInstrumentationListener; |
| 293 | |
Elliott Hughes | 4ffd313 | 2011-10-24 12:06:42 -0700 | [diff] [blame] | 294 | // JDWP is allowed unless the Zygote forbids it. |
| 295 | static bool gJdwpAllowed = true; |
| 296 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 297 | // Was there a -Xrunjdwp or -agentlib:jdwp= argument on the command line? |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 298 | static bool gJdwpConfigured = false; |
| 299 | |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 300 | // Runtime JDWP state. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 301 | static JDWP::JdwpState* gJdwpState = nullptr; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 302 | static bool gDebuggerConnected; // debugger or DDMS is connected. |
| 303 | static bool gDebuggerActive; // debugger is making requests. |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 304 | 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] | 305 | |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 306 | static bool gDdmThreadNotification = false; |
| 307 | |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 308 | // DDMS GC-related settings. |
| 309 | static Dbg::HpifWhen gDdmHpifWhen = Dbg::HPIF_WHEN_NEVER; |
| 310 | static Dbg::HpsgWhen gDdmHpsgWhen = Dbg::HPSG_WHEN_NEVER; |
| 311 | static Dbg::HpsgWhat gDdmHpsgWhat; |
| 312 | static Dbg::HpsgWhen gDdmNhsgWhen = Dbg::HPSG_WHEN_NEVER; |
| 313 | static Dbg::HpsgWhat gDdmNhsgWhat; |
| 314 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 315 | ObjectRegistry* Dbg::gRegistry = nullptr; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 316 | |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 317 | // Recent allocation tracking. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 318 | AllocRecord* Dbg::recent_allocation_records_ = nullptr; // TODO: CircularBuffer<AllocRecord> |
| 319 | size_t Dbg::alloc_record_max_ = 0; |
| 320 | size_t Dbg::alloc_record_head_ = 0; |
| 321 | size_t Dbg::alloc_record_count_ = 0; |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 322 | Dbg::TypeCache Dbg::type_cache_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 323 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 324 | // Deoptimization support. |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 325 | std::vector<DeoptimizationRequest> Dbg::deoptimization_requests_; |
| 326 | size_t Dbg::full_deoptimization_event_count_ = 0; |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 327 | size_t Dbg::delayed_full_undeoptimization_count_ = 0; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 328 | |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 329 | // Instrumentation event reference counters. |
| 330 | size_t Dbg::dex_pc_change_event_ref_count_ = 0; |
| 331 | size_t Dbg::method_enter_event_ref_count_ = 0; |
| 332 | size_t Dbg::method_exit_event_ref_count_ = 0; |
| 333 | size_t Dbg::field_read_event_ref_count_ = 0; |
| 334 | size_t Dbg::field_write_event_ref_count_ = 0; |
| 335 | size_t Dbg::exception_catch_event_ref_count_ = 0; |
| 336 | uint32_t Dbg::instrumentation_events_ = 0; |
| 337 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 338 | // Breakpoints. |
jeffhao | 09bfc6a | 2012-12-11 18:11:43 -0800 | [diff] [blame] | 339 | static std::vector<Breakpoint> gBreakpoints GUARDED_BY(Locks::breakpoint_lock_); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 340 | |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 341 | void DebugInvokeReq::VisitRoots(RootCallback* callback, void* arg, const RootInfo& root_info) { |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 342 | if (receiver != nullptr) { |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 343 | callback(&receiver, arg, root_info); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 344 | } |
| 345 | if (thread != nullptr) { |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 346 | callback(&thread, arg, root_info); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 347 | } |
| 348 | if (klass != nullptr) { |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 349 | callback(reinterpret_cast<mirror::Object**>(&klass), arg, root_info); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 350 | } |
| 351 | if (method != nullptr) { |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 352 | callback(reinterpret_cast<mirror::Object**>(&method), arg, root_info); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 353 | } |
| 354 | } |
| 355 | |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 356 | void DebugInvokeReq::Clear() { |
| 357 | invoke_needed = false; |
| 358 | receiver = nullptr; |
| 359 | thread = nullptr; |
| 360 | klass = nullptr; |
| 361 | method = nullptr; |
| 362 | } |
| 363 | |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 364 | void SingleStepControl::VisitRoots(RootCallback* callback, void* arg, const RootInfo& root_info) { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 365 | if (method_ != nullptr) { |
| 366 | callback(reinterpret_cast<mirror::Object**>(&method_), arg, root_info); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 367 | } |
| 368 | } |
| 369 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 370 | void SingleStepControl::AddDexPc(uint32_t dex_pc) { |
| 371 | dex_pcs_.insert(dex_pc); |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 372 | } |
| 373 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 374 | bool SingleStepControl::ContainsDexPc(uint32_t dex_pc) const { |
| 375 | return dex_pcs_.find(dex_pc) == dex_pcs_.end(); |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 376 | } |
| 377 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 378 | static bool IsBreakpoint(const mirror::ArtMethod* m, uint32_t dex_pc) |
jeffhao | 09bfc6a | 2012-12-11 18:11:43 -0800 | [diff] [blame] | 379 | LOCKS_EXCLUDED(Locks::breakpoint_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 380 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 381 | ReaderMutexLock mu(Thread::Current(), *Locks::breakpoint_lock_); |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 382 | for (size_t i = 0, e = gBreakpoints.size(); i < e; ++i) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 383 | if (gBreakpoints[i].DexPc() == dex_pc && gBreakpoints[i].Method() == m) { |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 384 | VLOG(jdwp) << "Hit breakpoint #" << i << ": " << gBreakpoints[i]; |
| 385 | return true; |
| 386 | } |
| 387 | } |
| 388 | return false; |
| 389 | } |
| 390 | |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 391 | static bool IsSuspendedForDebugger(ScopedObjectAccessUnchecked& soa, Thread* thread) |
| 392 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) { |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 393 | MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); |
| 394 | // A thread may be suspended for GC; in this code, we really want to know whether |
| 395 | // there's a debugger suspension active. |
| 396 | return thread->IsSuspended() && thread->GetDebugSuspendCount() > 0; |
| 397 | } |
| 398 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 399 | static mirror::Array* DecodeNonNullArray(JDWP::RefTypeId id, JDWP::JdwpError* error) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 400 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 401 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(id, error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 402 | if (o == nullptr) { |
| 403 | *error = JDWP::ERR_INVALID_OBJECT; |
| 404 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 405 | } |
| 406 | if (!o->IsArrayInstance()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 407 | *error = JDWP::ERR_INVALID_ARRAY; |
| 408 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 409 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 410 | *error = JDWP::ERR_NONE; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 411 | return o->AsArray(); |
| 412 | } |
| 413 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 414 | static mirror::Class* DecodeClass(JDWP::RefTypeId id, JDWP::JdwpError* error) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 415 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 416 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(id, error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 417 | if (o == nullptr) { |
| 418 | *error = JDWP::ERR_INVALID_OBJECT; |
| 419 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 420 | } |
| 421 | if (!o->IsClass()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 422 | *error = JDWP::ERR_INVALID_CLASS; |
| 423 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 424 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 425 | *error = JDWP::ERR_NONE; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 426 | return o->AsClass(); |
| 427 | } |
| 428 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 429 | static Thread* DecodeThread(ScopedObjectAccessUnchecked& soa, JDWP::ObjectId thread_id, |
| 430 | JDWP::JdwpError* error) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 431 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 432 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 433 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 434 | mirror::Object* thread_peer = Dbg::GetObjectRegistry()->Get<mirror::Object*>(thread_id, error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 435 | if (thread_peer == nullptr) { |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 436 | // This isn't even an object. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 437 | *error = JDWP::ERR_INVALID_OBJECT; |
| 438 | return nullptr; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 439 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 440 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 441 | 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] | 442 | if (!java_lang_Thread->IsAssignableFrom(thread_peer->GetClass())) { |
| 443 | // This isn't a thread. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 444 | *error = JDWP::ERR_INVALID_THREAD; |
| 445 | return nullptr; |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 446 | } |
| 447 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 448 | Thread* thread = Thread::FromManagedThread(soa, thread_peer); |
| 449 | // If thread is null then this a java.lang.Thread without a Thread*. Must be a un-started or a |
| 450 | // zombie. |
| 451 | *error = (thread == nullptr) ? JDWP::ERR_THREAD_NOT_ALIVE : JDWP::ERR_NONE; |
| 452 | return thread; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 453 | } |
| 454 | |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 455 | static JDWP::JdwpTag BasicTagFromDescriptor(const char* descriptor) { |
| 456 | // JDWP deliberately uses the descriptor characters' ASCII values for its enum. |
| 457 | // Note that by "basic" we mean that we don't get more specific than JT_OBJECT. |
| 458 | return static_cast<JDWP::JdwpTag>(descriptor[0]); |
| 459 | } |
| 460 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 461 | static JDWP::JdwpTag BasicTagFromClass(mirror::Class* klass) |
| 462 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 463 | std::string temp; |
| 464 | const char* descriptor = klass->GetDescriptor(&temp); |
| 465 | return BasicTagFromDescriptor(descriptor); |
| 466 | } |
| 467 | |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 468 | static JDWP::JdwpTag TagFromClass(const ScopedObjectAccessUnchecked& soa, mirror::Class* c) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 469 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 470 | CHECK(c != nullptr); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 471 | if (c->IsArrayClass()) { |
| 472 | return JDWP::JT_ARRAY; |
| 473 | } |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 474 | if (c->IsStringClass()) { |
| 475 | return JDWP::JT_STRING; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 476 | } |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 477 | if (c->IsClassClass()) { |
| 478 | return JDWP::JT_CLASS_OBJECT; |
| 479 | } |
| 480 | { |
| 481 | mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread); |
| 482 | if (thread_class->IsAssignableFrom(c)) { |
| 483 | return JDWP::JT_THREAD; |
| 484 | } |
| 485 | } |
| 486 | { |
| 487 | mirror::Class* thread_group_class = |
| 488 | soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ThreadGroup); |
| 489 | if (thread_group_class->IsAssignableFrom(c)) { |
| 490 | return JDWP::JT_THREAD_GROUP; |
| 491 | } |
| 492 | } |
| 493 | { |
| 494 | mirror::Class* class_loader_class = |
| 495 | soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader); |
| 496 | if (class_loader_class->IsAssignableFrom(c)) { |
| 497 | return JDWP::JT_CLASS_LOADER; |
| 498 | } |
| 499 | } |
| 500 | return JDWP::JT_OBJECT; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | /* |
| 504 | * Objects declared to hold Object might actually hold a more specific |
| 505 | * type. The debugger may take a special interest in these (e.g. it |
| 506 | * wants to display the contents of Strings), so we want to return an |
| 507 | * appropriate tag. |
| 508 | * |
| 509 | * Null objects are tagged JT_OBJECT. |
| 510 | */ |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 511 | JDWP::JdwpTag Dbg::TagFromObject(const ScopedObjectAccessUnchecked& soa, mirror::Object* o) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 512 | return (o == nullptr) ? JDWP::JT_OBJECT : TagFromClass(soa, o->GetClass()); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 513 | } |
| 514 | |
| 515 | static bool IsPrimitiveTag(JDWP::JdwpTag tag) { |
| 516 | switch (tag) { |
| 517 | case JDWP::JT_BOOLEAN: |
| 518 | case JDWP::JT_BYTE: |
| 519 | case JDWP::JT_CHAR: |
| 520 | case JDWP::JT_FLOAT: |
| 521 | case JDWP::JT_DOUBLE: |
| 522 | case JDWP::JT_INT: |
| 523 | case JDWP::JT_LONG: |
| 524 | case JDWP::JT_SHORT: |
| 525 | case JDWP::JT_VOID: |
| 526 | return true; |
| 527 | default: |
| 528 | return false; |
| 529 | } |
| 530 | } |
| 531 | |
Sebastien Hertz | 3be6e9d | 2015-02-05 16:30:58 +0100 | [diff] [blame] | 532 | void Dbg::StartJdwp(const JDWP::JdwpOptions* jdwp_options) { |
| 533 | gJdwpConfigured = (jdwp_options != nullptr); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 534 | if (!gJdwpAllowed || !IsJdwpConfigured()) { |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 535 | // No JDWP for you! |
| 536 | return; |
| 537 | } |
Sebastien Hertz | 3be6e9d | 2015-02-05 16:30:58 +0100 | [diff] [blame] | 538 | DCHECK_NE(jdwp_options->transport, JDWP::kJdwpTransportUnknown); |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 539 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 540 | CHECK(gRegistry == nullptr); |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 541 | gRegistry = new ObjectRegistry; |
| 542 | |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 543 | // Init JDWP if the debugger is enabled. This may connect out to a |
| 544 | // debugger, passively listen for a debugger, or block waiting for a |
| 545 | // debugger. |
Sebastien Hertz | 3be6e9d | 2015-02-05 16:30:58 +0100 | [diff] [blame] | 546 | gJdwpState = JDWP::JdwpState::Create(jdwp_options); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 547 | if (gJdwpState == nullptr) { |
Elliott Hughes | f8a2df7 | 2011-12-01 12:19:54 -0800 | [diff] [blame] | 548 | // We probably failed because some other process has the port already, which means that |
| 549 | // if we don't abort the user is likely to think they're talking to us when they're actually |
| 550 | // talking to that other process. |
Elliott Hughes | 3d30d9b | 2011-12-07 17:35:48 -0800 | [diff] [blame] | 551 | LOG(FATAL) << "Debugger thread failed to initialize"; |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 552 | } |
| 553 | |
| 554 | // If a debugger has already attached, send the "welcome" message. |
| 555 | // This may cause us to suspend all threads. |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 556 | if (gJdwpState->IsActive()) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 557 | ScopedObjectAccess soa(Thread::Current()); |
Sebastien Hertz | 7d95565 | 2014-10-22 10:57:10 +0200 | [diff] [blame] | 558 | gJdwpState->PostVMStart(); |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 559 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 560 | } |
| 561 | |
Elliott Hughes | d1cc836 | 2011-10-24 16:58:50 -0700 | [diff] [blame] | 562 | void Dbg::StopJdwp() { |
Sebastien Hertz | c6345ef | 2014-08-18 19:26:39 +0200 | [diff] [blame] | 563 | // Post VM_DEATH event before the JDWP connection is closed (either by the JDWP thread or the |
| 564 | // destruction of gJdwpState). |
| 565 | if (gJdwpState != nullptr && gJdwpState->IsActive()) { |
| 566 | gJdwpState->PostVMDeath(); |
| 567 | } |
Sebastien Hertz | 0376e6b | 2014-02-06 18:12:59 +0100 | [diff] [blame] | 568 | // Prevent the JDWP thread from processing JDWP incoming packets after we close the connection. |
| 569 | Disposed(); |
Elliott Hughes | 376a7a0 | 2011-10-24 18:35:55 -0700 | [diff] [blame] | 570 | delete gJdwpState; |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 571 | gJdwpState = nullptr; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 572 | delete gRegistry; |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 573 | gRegistry = nullptr; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 574 | } |
| 575 | |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 576 | void Dbg::GcDidFinish() { |
| 577 | if (gDdmHpifWhen != HPIF_WHEN_NEVER) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 578 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 4d466a8 | 2014-05-08 19:05:29 -0700 | [diff] [blame] | 579 | VLOG(jdwp) << "Sending heap info to DDM"; |
Elliott Hughes | 7162ad9 | 2011-10-27 14:08:42 -0700 | [diff] [blame] | 580 | DdmSendHeapInfo(gDdmHpifWhen); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 581 | } |
| 582 | if (gDdmHpsgWhen != HPSG_WHEN_NEVER) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 583 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 4d466a8 | 2014-05-08 19:05:29 -0700 | [diff] [blame] | 584 | VLOG(jdwp) << "Dumping heap to DDM"; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 585 | DdmSendHeapSegments(false); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 586 | } |
| 587 | if (gDdmNhsgWhen != HPSG_WHEN_NEVER) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 588 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 4d466a8 | 2014-05-08 19:05:29 -0700 | [diff] [blame] | 589 | VLOG(jdwp) << "Dumping native heap to DDM"; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 590 | DdmSendHeapSegments(true); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 591 | } |
| 592 | } |
| 593 | |
Elliott Hughes | 4ffd313 | 2011-10-24 12:06:42 -0700 | [diff] [blame] | 594 | void Dbg::SetJdwpAllowed(bool allowed) { |
| 595 | gJdwpAllowed = allowed; |
| 596 | } |
| 597 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 598 | DebugInvokeReq* Dbg::GetInvokeReq() { |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 599 | return Thread::Current()->GetInvokeReq(); |
| 600 | } |
| 601 | |
| 602 | Thread* Dbg::GetDebugThread() { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 603 | return (gJdwpState != nullptr) ? gJdwpState->GetDebugThread() : nullptr; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 604 | } |
| 605 | |
| 606 | void Dbg::ClearWaitForEventThread() { |
| 607 | gJdwpState->ClearWaitForEventThread(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | void Dbg::Connected() { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 611 | CHECK(!gDebuggerConnected); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 612 | VLOG(jdwp) << "JDWP has attached"; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 613 | gDebuggerConnected = true; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 614 | gDisposed = false; |
| 615 | } |
| 616 | |
| 617 | void Dbg::Disposed() { |
| 618 | gDisposed = true; |
| 619 | } |
| 620 | |
| 621 | bool Dbg::IsDisposed() { |
| 622 | return gDisposed; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 623 | } |
| 624 | |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 625 | bool Dbg::RequiresDeoptimization() { |
| 626 | // We don't need deoptimization if everything runs with interpreter after |
| 627 | // enabling -Xint mode. |
| 628 | return !Runtime::Current()->GetInstrumentation()->IsForcedInterpretOnly(); |
| 629 | } |
| 630 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 631 | void Dbg::GoActive() { |
| 632 | // Enable all debugging features, including scans for breakpoints. |
| 633 | // This is a no-op if we're already active. |
| 634 | // Only called from the JDWP handler thread. |
| 635 | if (gDebuggerActive) { |
| 636 | return; |
| 637 | } |
| 638 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 639 | { |
| 640 | // 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] | 641 | ReaderMutexLock mu(Thread::Current(), *Locks::breakpoint_lock_); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 642 | CHECK_EQ(gBreakpoints.size(), 0U); |
| 643 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 644 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 645 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 646 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 647 | CHECK_EQ(deoptimization_requests_.size(), 0U); |
| 648 | CHECK_EQ(full_deoptimization_event_count_, 0U); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 649 | CHECK_EQ(delayed_full_undeoptimization_count_, 0U); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 650 | CHECK_EQ(dex_pc_change_event_ref_count_, 0U); |
| 651 | CHECK_EQ(method_enter_event_ref_count_, 0U); |
| 652 | CHECK_EQ(method_exit_event_ref_count_, 0U); |
| 653 | CHECK_EQ(field_read_event_ref_count_, 0U); |
| 654 | CHECK_EQ(field_write_event_ref_count_, 0U); |
| 655 | CHECK_EQ(exception_catch_event_ref_count_, 0U); |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 656 | } |
| 657 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 658 | Runtime* runtime = Runtime::Current(); |
| 659 | runtime->GetThreadList()->SuspendAll(); |
| 660 | Thread* self = Thread::Current(); |
| 661 | ThreadState old_state = self->SetStateUnsafe(kRunnable); |
| 662 | CHECK_NE(old_state, kRunnable); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 663 | if (RequiresDeoptimization()) { |
| 664 | runtime->GetInstrumentation()->EnableDeoptimization(); |
| 665 | } |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 666 | instrumentation_events_ = 0; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 667 | gDebuggerActive = true; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 668 | CHECK_EQ(self->SetStateUnsafe(old_state), kRunnable); |
| 669 | runtime->GetThreadList()->ResumeAll(); |
| 670 | |
| 671 | LOG(INFO) << "Debugger is active"; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | void Dbg::Disconnected() { |
Elliott Hughes | 234ab15 | 2011-10-26 14:02:26 -0700 | [diff] [blame] | 675 | CHECK(gDebuggerConnected); |
| 676 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 677 | LOG(INFO) << "Debugger is no longer active"; |
Elliott Hughes | 234ab15 | 2011-10-26 14:02:26 -0700 | [diff] [blame] | 678 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 679 | // Suspend all threads and exclusively acquire the mutator lock. Set the state of the thread |
| 680 | // to kRunnable to avoid scoped object access transitions. Remove the debugger as a listener |
| 681 | // and clear the object registry. |
| 682 | Runtime* runtime = Runtime::Current(); |
| 683 | runtime->GetThreadList()->SuspendAll(); |
| 684 | Thread* self = Thread::Current(); |
| 685 | ThreadState old_state = self->SetStateUnsafe(kRunnable); |
Sebastien Hertz | aaea734 | 2014-02-25 15:10:04 +0100 | [diff] [blame] | 686 | |
| 687 | // Debugger may not be active at this point. |
| 688 | if (gDebuggerActive) { |
| 689 | { |
| 690 | // Since we're going to disable deoptimization, we clear the deoptimization requests queue. |
| 691 | // This prevents us from having any pending deoptimization request when the debugger attaches |
| 692 | // to us again while no event has been requested yet. |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 693 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 694 | deoptimization_requests_.clear(); |
| 695 | full_deoptimization_event_count_ = 0U; |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 696 | delayed_full_undeoptimization_count_ = 0U; |
Sebastien Hertz | aaea734 | 2014-02-25 15:10:04 +0100 | [diff] [blame] | 697 | } |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 698 | if (instrumentation_events_ != 0) { |
| 699 | runtime->GetInstrumentation()->RemoveListener(&gDebugInstrumentationListener, |
| 700 | instrumentation_events_); |
| 701 | instrumentation_events_ = 0; |
| 702 | } |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 703 | if (RequiresDeoptimization()) { |
| 704 | runtime->GetInstrumentation()->DisableDeoptimization(); |
| 705 | } |
Sebastien Hertz | aaea734 | 2014-02-25 15:10:04 +0100 | [diff] [blame] | 706 | gDebuggerActive = false; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 707 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 708 | CHECK_EQ(self->SetStateUnsafe(old_state), kRunnable); |
| 709 | runtime->GetThreadList()->ResumeAll(); |
Sebastien Hertz | 55f6534 | 2015-01-13 22:48:34 +0100 | [diff] [blame] | 710 | |
| 711 | { |
| 712 | ScopedObjectAccess soa(self); |
| 713 | gRegistry->Clear(); |
| 714 | } |
| 715 | |
| 716 | gDebuggerConnected = false; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 717 | } |
| 718 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 719 | bool Dbg::IsDebuggerActive() { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 720 | return gDebuggerActive; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 721 | } |
| 722 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 723 | bool Dbg::IsJdwpConfigured() { |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 724 | return gJdwpConfigured; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 725 | } |
| 726 | |
| 727 | int64_t Dbg::LastDebuggerActivity() { |
Elliott Hughes | ca95152 | 2011-12-05 12:01:32 -0800 | [diff] [blame] | 728 | return gJdwpState->LastDebuggerActivity(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 729 | } |
| 730 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 731 | void Dbg::UndoDebuggerSuspensions() { |
Elliott Hughes | 234ab15 | 2011-10-26 14:02:26 -0700 | [diff] [blame] | 732 | Runtime::Current()->GetThreadList()->UndoDebuggerSuspensions(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 733 | } |
| 734 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 735 | std::string Dbg::GetClassName(JDWP::RefTypeId class_id) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 736 | JDWP::JdwpError error; |
| 737 | mirror::Object* o = gRegistry->Get<mirror::Object*>(class_id, &error); |
| 738 | if (o == nullptr) { |
| 739 | if (error == JDWP::ERR_NONE) { |
| 740 | return "NULL"; |
| 741 | } else { |
| 742 | return StringPrintf("invalid object %p", reinterpret_cast<void*>(class_id)); |
| 743 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 744 | } |
| 745 | if (!o->IsClass()) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 746 | 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] | 747 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 748 | return GetClassName(o->AsClass()); |
| 749 | } |
| 750 | |
| 751 | std::string Dbg::GetClassName(mirror::Class* klass) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 752 | if (klass == nullptr) { |
| 753 | return "NULL"; |
| 754 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 755 | std::string temp; |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 756 | return DescriptorToName(klass->GetDescriptor(&temp)); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 757 | } |
| 758 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 759 | JDWP::JdwpError Dbg::GetClassObject(JDWP::RefTypeId id, JDWP::ObjectId* class_object_id) { |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 760 | JDWP::JdwpError status; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 761 | mirror::Class* c = DecodeClass(id, &status); |
| 762 | if (c == nullptr) { |
| 763 | *class_object_id = 0; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 764 | return status; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 765 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 766 | *class_object_id = gRegistry->Add(c); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 767 | return JDWP::ERR_NONE; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 768 | } |
| 769 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 770 | JDWP::JdwpError Dbg::GetSuperclass(JDWP::RefTypeId id, JDWP::RefTypeId* superclass_id) { |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 771 | JDWP::JdwpError status; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 772 | mirror::Class* c = DecodeClass(id, &status); |
| 773 | if (c == nullptr) { |
| 774 | *superclass_id = 0; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 775 | return status; |
| 776 | } |
| 777 | if (c->IsInterface()) { |
| 778 | // http://code.google.com/p/android/issues/detail?id=20856 |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 779 | *superclass_id = 0; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 780 | } else { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 781 | *superclass_id = gRegistry->Add(c->GetSuperClass()); |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 782 | } |
| 783 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 784 | } |
| 785 | |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 786 | JDWP::JdwpError Dbg::GetClassLoader(JDWP::RefTypeId id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 787 | JDWP::JdwpError error; |
| 788 | mirror::Object* o = gRegistry->Get<mirror::Object*>(id, &error); |
| 789 | if (o == nullptr) { |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 790 | return JDWP::ERR_INVALID_OBJECT; |
| 791 | } |
| 792 | expandBufAddObjectId(pReply, gRegistry->Add(o->GetClass()->GetClassLoader())); |
| 793 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 794 | } |
| 795 | |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 796 | JDWP::JdwpError Dbg::GetModifiers(JDWP::RefTypeId id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 797 | JDWP::JdwpError error; |
| 798 | mirror::Class* c = DecodeClass(id, &error); |
| 799 | if (c == nullptr) { |
| 800 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 801 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 802 | |
| 803 | uint32_t access_flags = c->GetAccessFlags() & kAccJavaFlagsMask; |
| 804 | |
Yevgeny Rouban | de34eea | 2014-02-15 01:06:03 +0700 | [diff] [blame] | 805 | // Set ACC_SUPER. Dex files don't contain this flag but only classes are supposed to have it set, |
| 806 | // not interfaces. |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 807 | // 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] | 808 | if ((access_flags & kAccInterface) == 0) { |
| 809 | access_flags |= kAccSuper; |
| 810 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 811 | |
| 812 | expandBufAdd4BE(pReply, access_flags); |
| 813 | |
| 814 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 815 | } |
| 816 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 817 | JDWP::JdwpError Dbg::GetMonitorInfo(JDWP::ObjectId object_id, JDWP::ExpandBuf* reply) { |
| 818 | JDWP::JdwpError error; |
| 819 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 820 | if (o == nullptr) { |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 821 | return JDWP::ERR_INVALID_OBJECT; |
| 822 | } |
| 823 | |
| 824 | // Ensure all threads are suspended while we read objects' lock words. |
| 825 | Thread* self = Thread::Current(); |
Sebastien Hertz | 5426324 | 2014-03-19 18:16:50 +0100 | [diff] [blame] | 826 | CHECK_EQ(self->GetState(), kRunnable); |
| 827 | self->TransitionFromRunnableToSuspended(kSuspended); |
| 828 | Runtime::Current()->GetThreadList()->SuspendAll(); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 829 | |
| 830 | MonitorInfo monitor_info(o); |
| 831 | |
Sebastien Hertz | 5426324 | 2014-03-19 18:16:50 +0100 | [diff] [blame] | 832 | Runtime::Current()->GetThreadList()->ResumeAll(); |
| 833 | self->TransitionFromSuspendedToRunnable(); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 834 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 835 | if (monitor_info.owner_ != nullptr) { |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 836 | expandBufAddObjectId(reply, gRegistry->Add(monitor_info.owner_->GetPeer())); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 837 | } else { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 838 | expandBufAddObjectId(reply, gRegistry->Add(nullptr)); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 839 | } |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 840 | expandBufAdd4BE(reply, monitor_info.entry_count_); |
| 841 | expandBufAdd4BE(reply, monitor_info.waiters_.size()); |
| 842 | for (size_t i = 0; i < monitor_info.waiters_.size(); ++i) { |
| 843 | expandBufAddObjectId(reply, gRegistry->Add(monitor_info.waiters_[i]->GetPeer())); |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 844 | } |
| 845 | return JDWP::ERR_NONE; |
| 846 | } |
| 847 | |
Elliott Hughes | 734b8c6 | 2013-01-11 15:32:45 -0800 | [diff] [blame] | 848 | JDWP::JdwpError Dbg::GetOwnedMonitors(JDWP::ObjectId thread_id, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 849 | std::vector<JDWP::ObjectId>* monitors, |
| 850 | std::vector<uint32_t>* stack_depths) { |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 851 | struct OwnedMonitorVisitor : public StackVisitor { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 852 | OwnedMonitorVisitor(Thread* thread, Context* context, |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 853 | std::vector<JDWP::ObjectId>* monitor_vector, |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 854 | std::vector<uint32_t>* stack_depth_vector) |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 855 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 856 | : StackVisitor(thread, context), current_stack_depth(0), |
| 857 | monitors(monitor_vector), stack_depths(stack_depth_vector) {} |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 858 | |
| 859 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 860 | // annotalysis. |
| 861 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
| 862 | if (!GetMethod()->IsRuntimeMethod()) { |
| 863 | Monitor::VisitLocks(this, AppendOwnedMonitors, this); |
Elliott Hughes | 734b8c6 | 2013-01-11 15:32:45 -0800 | [diff] [blame] | 864 | ++current_stack_depth; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 865 | } |
| 866 | return true; |
| 867 | } |
| 868 | |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 869 | static void AppendOwnedMonitors(mirror::Object* owned_monitor, void* arg) |
| 870 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 871 | OwnedMonitorVisitor* visitor = reinterpret_cast<OwnedMonitorVisitor*>(arg); |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 872 | visitor->monitors->push_back(gRegistry->Add(owned_monitor)); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 873 | visitor->stack_depths->push_back(visitor->current_stack_depth); |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 874 | } |
| 875 | |
Elliott Hughes | 734b8c6 | 2013-01-11 15:32:45 -0800 | [diff] [blame] | 876 | size_t current_stack_depth; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 877 | std::vector<JDWP::ObjectId>* const monitors; |
| 878 | std::vector<uint32_t>* const stack_depths; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 879 | }; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 880 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 881 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 882 | Thread* thread; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 883 | { |
| 884 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 885 | JDWP::JdwpError error; |
| 886 | thread = DecodeThread(soa, thread_id, &error); |
| 887 | if (thread == nullptr) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 888 | return error; |
| 889 | } |
| 890 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 891 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 892 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 893 | } |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 894 | std::unique_ptr<Context> context(Context::Create()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 895 | OwnedMonitorVisitor visitor(thread, context.get(), monitors, stack_depths); |
Hiroshi Yamauchi | cc8c5c5 | 2014-06-13 15:08:05 -0700 | [diff] [blame] | 896 | visitor.WalkStack(); |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 897 | return JDWP::ERR_NONE; |
| 898 | } |
| 899 | |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 900 | JDWP::JdwpError Dbg::GetContendedMonitor(JDWP::ObjectId thread_id, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 901 | JDWP::ObjectId* contended_monitor) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 902 | mirror::Object* contended_monitor_obj; |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 903 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 904 | *contended_monitor = 0; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 905 | { |
| 906 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 907 | JDWP::JdwpError error; |
| 908 | Thread* thread = DecodeThread(soa, thread_id, &error); |
| 909 | if (thread == nullptr) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 910 | return error; |
| 911 | } |
| 912 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 913 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 914 | } |
| 915 | contended_monitor_obj = Monitor::GetContendedMonitor(thread); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 916 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 917 | // Add() requires the thread_list_lock_ not held to avoid the lock |
| 918 | // level violation. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 919 | *contended_monitor = gRegistry->Add(contended_monitor_obj); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 920 | return JDWP::ERR_NONE; |
| 921 | } |
| 922 | |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 923 | JDWP::JdwpError Dbg::GetInstanceCounts(const std::vector<JDWP::RefTypeId>& class_ids, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 924 | std::vector<uint64_t>* counts) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 925 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 926 | heap->CollectGarbage(false); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 927 | std::vector<mirror::Class*> classes; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 928 | counts->clear(); |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 929 | for (size_t i = 0; i < class_ids.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 930 | JDWP::JdwpError error; |
| 931 | mirror::Class* c = DecodeClass(class_ids[i], &error); |
| 932 | if (c == nullptr) { |
| 933 | return error; |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 934 | } |
| 935 | classes.push_back(c); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 936 | counts->push_back(0); |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 937 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 938 | heap->CountInstances(classes, false, &(*counts)[0]); |
Elliott Hughes | ec0f83d | 2013-01-15 16:54:08 -0800 | [diff] [blame] | 939 | return JDWP::ERR_NONE; |
| 940 | } |
| 941 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 942 | JDWP::JdwpError Dbg::GetInstances(JDWP::RefTypeId class_id, int32_t max_count, |
| 943 | std::vector<JDWP::ObjectId>* instances) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 944 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 945 | // We only want reachable instances, so do a GC. |
| 946 | heap->CollectGarbage(false); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 947 | JDWP::JdwpError error; |
| 948 | mirror::Class* c = DecodeClass(class_id, &error); |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 949 | if (c == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 950 | return error; |
Elliott Hughes | 3b78c94 | 2013-01-15 17:35:41 -0800 | [diff] [blame] | 951 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 952 | std::vector<mirror::Object*> raw_instances; |
Elliott Hughes | 3b78c94 | 2013-01-15 17:35:41 -0800 | [diff] [blame] | 953 | Runtime::Current()->GetHeap()->GetInstances(c, max_count, raw_instances); |
| 954 | for (size_t i = 0; i < raw_instances.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 955 | instances->push_back(gRegistry->Add(raw_instances[i])); |
Elliott Hughes | 3b78c94 | 2013-01-15 17:35:41 -0800 | [diff] [blame] | 956 | } |
| 957 | return JDWP::ERR_NONE; |
| 958 | } |
| 959 | |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 960 | JDWP::JdwpError Dbg::GetReferringObjects(JDWP::ObjectId object_id, int32_t max_count, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 961 | std::vector<JDWP::ObjectId>* referring_objects) { |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 962 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 963 | heap->CollectGarbage(false); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 964 | JDWP::JdwpError error; |
| 965 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 966 | if (o == nullptr) { |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 967 | return JDWP::ERR_INVALID_OBJECT; |
| 968 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 969 | std::vector<mirror::Object*> raw_instances; |
Mathieu Chartier | 412c7fc | 2014-02-07 12:18:39 -0800 | [diff] [blame] | 970 | heap->GetReferringObjects(o, max_count, raw_instances); |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 971 | for (size_t i = 0; i < raw_instances.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 972 | referring_objects->push_back(gRegistry->Add(raw_instances[i])); |
Elliott Hughes | 0cbaff5 | 2013-01-16 15:28:01 -0800 | [diff] [blame] | 973 | } |
| 974 | return JDWP::ERR_NONE; |
| 975 | } |
| 976 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 977 | JDWP::JdwpError Dbg::DisableCollection(JDWP::ObjectId object_id) { |
| 978 | JDWP::JdwpError error; |
| 979 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 980 | if (o == nullptr) { |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 981 | return JDWP::ERR_INVALID_OBJECT; |
| 982 | } |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 983 | gRegistry->DisableCollection(object_id); |
| 984 | return JDWP::ERR_NONE; |
| 985 | } |
| 986 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 987 | JDWP::JdwpError Dbg::EnableCollection(JDWP::ObjectId object_id) { |
| 988 | JDWP::JdwpError error; |
| 989 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 990 | // Unlike DisableCollection, JDWP specs do not state an invalid object causes an error. The RI |
| 991 | // also ignores these cases and never return an error. However it's not obvious why this command |
| 992 | // should behave differently from DisableCollection and IsCollected commands. So let's be more |
| 993 | // strict and return an error if this happens. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 994 | if (o == nullptr) { |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 995 | return JDWP::ERR_INVALID_OBJECT; |
| 996 | } |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 997 | gRegistry->EnableCollection(object_id); |
| 998 | return JDWP::ERR_NONE; |
| 999 | } |
| 1000 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1001 | JDWP::JdwpError Dbg::IsCollected(JDWP::ObjectId object_id, bool* is_collected) { |
| 1002 | *is_collected = true; |
Sebastien Hertz | 65637eb | 2014-01-10 17:40:02 +0100 | [diff] [blame] | 1003 | if (object_id == 0) { |
| 1004 | // Null object id is invalid. |
Sebastien Hertz | e96060a | 2013-12-11 12:06:28 +0100 | [diff] [blame] | 1005 | return JDWP::ERR_INVALID_OBJECT; |
| 1006 | } |
Sebastien Hertz | 65637eb | 2014-01-10 17:40:02 +0100 | [diff] [blame] | 1007 | // JDWP specs state an INVALID_OBJECT error is returned if the object ID is not valid. However |
| 1008 | // the RI seems to ignore this and assume object has been collected. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1009 | JDWP::JdwpError error; |
| 1010 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1011 | if (o != nullptr) { |
| 1012 | *is_collected = gRegistry->IsCollected(object_id); |
Sebastien Hertz | 65637eb | 2014-01-10 17:40:02 +0100 | [diff] [blame] | 1013 | } |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1014 | return JDWP::ERR_NONE; |
| 1015 | } |
| 1016 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1017 | void Dbg::DisposeObject(JDWP::ObjectId object_id, uint32_t reference_count) { |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1018 | gRegistry->DisposeObject(object_id, reference_count); |
| 1019 | } |
| 1020 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1021 | JDWP::JdwpTypeTag Dbg::GetTypeTag(mirror::Class* klass) { |
Sebastien Hertz | 4d8fd49 | 2014-03-28 16:29:41 +0100 | [diff] [blame] | 1022 | DCHECK(klass != nullptr); |
| 1023 | if (klass->IsArrayClass()) { |
| 1024 | return JDWP::TT_ARRAY; |
| 1025 | } else if (klass->IsInterface()) { |
| 1026 | return JDWP::TT_INTERFACE; |
| 1027 | } else { |
| 1028 | return JDWP::TT_CLASS; |
| 1029 | } |
| 1030 | } |
| 1031 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1032 | JDWP::JdwpError Dbg::GetReflectedType(JDWP::RefTypeId class_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1033 | JDWP::JdwpError error; |
| 1034 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1035 | if (c == nullptr) { |
| 1036 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1037 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1038 | |
Sebastien Hertz | 4d8fd49 | 2014-03-28 16:29:41 +0100 | [diff] [blame] | 1039 | JDWP::JdwpTypeTag type_tag = GetTypeTag(c); |
| 1040 | expandBufAdd1(pReply, type_tag); |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1041 | expandBufAddRefTypeId(pReply, class_id); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1042 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1043 | } |
| 1044 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1045 | void Dbg::GetClassList(std::vector<JDWP::RefTypeId>* classes) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1046 | // Get the complete list of reference classes (i.e. all classes except |
| 1047 | // the primitive types). |
| 1048 | // Returns a newly-allocated buffer full of RefTypeId values. |
| 1049 | struct ClassListCreator { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 1050 | explicit ClassListCreator(std::vector<JDWP::RefTypeId>* classes_in) : classes(classes_in) { |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1051 | } |
| 1052 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1053 | static bool Visit(mirror::Class* c, void* arg) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1054 | return reinterpret_cast<ClassListCreator*>(arg)->Visit(c); |
| 1055 | } |
| 1056 | |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1057 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 1058 | // annotalysis. |
| 1059 | bool Visit(mirror::Class* c) NO_THREAD_SAFETY_ANALYSIS { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1060 | if (!c->IsPrimitive()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1061 | classes->push_back(gRegistry->AddRefType(c)); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1062 | } |
| 1063 | return true; |
| 1064 | } |
| 1065 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1066 | std::vector<JDWP::RefTypeId>* const classes; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1067 | }; |
| 1068 | |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1069 | ClassListCreator clc(classes); |
Sebastien Hertz | 4537c41 | 2014-08-28 14:41:50 +0200 | [diff] [blame] | 1070 | Runtime::Current()->GetClassLinker()->VisitClassesWithoutClassesLock(ClassListCreator::Visit, |
| 1071 | &clc); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1072 | } |
| 1073 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1074 | JDWP::JdwpError Dbg::GetClassInfo(JDWP::RefTypeId class_id, JDWP::JdwpTypeTag* pTypeTag, |
| 1075 | uint32_t* pStatus, std::string* pDescriptor) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1076 | JDWP::JdwpError error; |
| 1077 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1078 | if (c == nullptr) { |
| 1079 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1080 | } |
| 1081 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1082 | if (c->IsArrayClass()) { |
| 1083 | *pStatus = JDWP::CS_VERIFIED | JDWP::CS_PREPARED; |
| 1084 | *pTypeTag = JDWP::TT_ARRAY; |
| 1085 | } else { |
| 1086 | if (c->IsErroneous()) { |
| 1087 | *pStatus = JDWP::CS_ERROR; |
| 1088 | } else { |
| 1089 | *pStatus = JDWP::CS_VERIFIED | JDWP::CS_PREPARED | JDWP::CS_INITIALIZED; |
| 1090 | } |
| 1091 | *pTypeTag = c->IsInterface() ? JDWP::TT_INTERFACE : JDWP::TT_CLASS; |
| 1092 | } |
| 1093 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1094 | if (pDescriptor != nullptr) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1095 | std::string temp; |
| 1096 | *pDescriptor = c->GetDescriptor(&temp); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 1097 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1098 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1099 | } |
| 1100 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1101 | void Dbg::FindLoadedClassBySignature(const char* descriptor, std::vector<JDWP::RefTypeId>* ids) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1102 | std::vector<mirror::Class*> classes; |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1103 | Runtime::Current()->GetClassLinker()->LookupClasses(descriptor, classes); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1104 | ids->clear(); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1105 | for (size_t i = 0; i < classes.size(); ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1106 | ids->push_back(gRegistry->Add(classes[i])); |
Elliott Hughes | 6fa602d | 2011-12-02 17:54:25 -0800 | [diff] [blame] | 1107 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1108 | } |
| 1109 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1110 | JDWP::JdwpError Dbg::GetReferenceType(JDWP::ObjectId object_id, JDWP::ExpandBuf* pReply) { |
| 1111 | JDWP::JdwpError error; |
| 1112 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1113 | if (o == nullptr) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1114 | return JDWP::ERR_INVALID_OBJECT; |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 1115 | } |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1116 | |
Sebastien Hertz | 4d8fd49 | 2014-03-28 16:29:41 +0100 | [diff] [blame] | 1117 | JDWP::JdwpTypeTag type_tag = GetTypeTag(o->GetClass()); |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 1118 | JDWP::RefTypeId type_id = gRegistry->AddRefType(o->GetClass()); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1119 | |
| 1120 | expandBufAdd1(pReply, type_tag); |
| 1121 | expandBufAddRefTypeId(pReply, type_id); |
| 1122 | |
| 1123 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1124 | } |
| 1125 | |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 1126 | JDWP::JdwpError Dbg::GetSignature(JDWP::RefTypeId class_id, std::string* signature) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1127 | JDWP::JdwpError error; |
| 1128 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1129 | if (c == nullptr) { |
| 1130 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1131 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1132 | std::string temp; |
| 1133 | *signature = c->GetDescriptor(&temp); |
Elliott Hughes | 1fe7afb | 2012-02-13 17:23:03 -0800 | [diff] [blame] | 1134 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1135 | } |
| 1136 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1137 | JDWP::JdwpError Dbg::GetSourceFile(JDWP::RefTypeId class_id, std::string* result) { |
| 1138 | JDWP::JdwpError error; |
| 1139 | mirror::Class* c = DecodeClass(class_id, &error); |
Sebastien Hertz | 4206eb5 | 2014-06-05 10:15:45 +0200 | [diff] [blame] | 1140 | if (c == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1141 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1142 | } |
Sebastien Hertz | 4206eb5 | 2014-06-05 10:15:45 +0200 | [diff] [blame] | 1143 | const char* source_file = c->GetSourceFile(); |
| 1144 | if (source_file == nullptr) { |
Sebastien Hertz | b7054ba | 2014-03-13 11:52:31 +0100 | [diff] [blame] | 1145 | return JDWP::ERR_ABSENT_INFORMATION; |
| 1146 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1147 | *result = source_file; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1148 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1149 | } |
| 1150 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1151 | JDWP::JdwpError Dbg::GetObjectTag(JDWP::ObjectId object_id, uint8_t* tag) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1152 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1153 | JDWP::JdwpError error; |
| 1154 | mirror::Object* o = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 1155 | if (error != JDWP::ERR_NONE) { |
| 1156 | *tag = JDWP::JT_VOID; |
| 1157 | return error; |
Elliott Hughes | 546b986 | 2012-06-20 16:06:13 -0700 | [diff] [blame] | 1158 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1159 | *tag = TagFromObject(soa, o); |
Elliott Hughes | 546b986 | 2012-06-20 16:06:13 -0700 | [diff] [blame] | 1160 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1161 | } |
| 1162 | |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1163 | size_t Dbg::GetTagWidth(JDWP::JdwpTag tag) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1164 | switch (tag) { |
| 1165 | case JDWP::JT_VOID: |
| 1166 | return 0; |
| 1167 | case JDWP::JT_BYTE: |
| 1168 | case JDWP::JT_BOOLEAN: |
| 1169 | return 1; |
| 1170 | case JDWP::JT_CHAR: |
| 1171 | case JDWP::JT_SHORT: |
| 1172 | return 2; |
| 1173 | case JDWP::JT_FLOAT: |
| 1174 | case JDWP::JT_INT: |
| 1175 | return 4; |
| 1176 | case JDWP::JT_ARRAY: |
| 1177 | case JDWP::JT_OBJECT: |
| 1178 | case JDWP::JT_STRING: |
| 1179 | case JDWP::JT_THREAD: |
| 1180 | case JDWP::JT_THREAD_GROUP: |
| 1181 | case JDWP::JT_CLASS_LOADER: |
| 1182 | case JDWP::JT_CLASS_OBJECT: |
| 1183 | return sizeof(JDWP::ObjectId); |
| 1184 | case JDWP::JT_DOUBLE: |
| 1185 | case JDWP::JT_LONG: |
| 1186 | return 8; |
| 1187 | default: |
Elliott Hughes | 3d30d9b | 2011-12-07 17:35:48 -0800 | [diff] [blame] | 1188 | LOG(FATAL) << "Unknown tag " << tag; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1189 | return -1; |
| 1190 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1191 | } |
| 1192 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1193 | JDWP::JdwpError Dbg::GetArrayLength(JDWP::ObjectId array_id, int32_t* length) { |
| 1194 | JDWP::JdwpError error; |
| 1195 | mirror::Array* a = DecodeNonNullArray(array_id, &error); |
| 1196 | if (a == nullptr) { |
| 1197 | return error; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1198 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1199 | *length = a->GetLength(); |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1200 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1201 | } |
| 1202 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1203 | 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] | 1204 | JDWP::JdwpError error; |
| 1205 | mirror::Array* a = DecodeNonNullArray(array_id, &error); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1206 | if (a == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1207 | return error; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1208 | } |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1209 | |
| 1210 | if (offset < 0 || count < 0 || offset > a->GetLength() || a->GetLength() - offset < count) { |
| 1211 | LOG(WARNING) << __FUNCTION__ << " access out of bounds: offset=" << offset << "; count=" << count; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1212 | return JDWP::ERR_INVALID_LENGTH; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1213 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1214 | JDWP::JdwpTag element_tag = BasicTagFromClass(a->GetClass()->GetComponentType()); |
| 1215 | expandBufAdd1(pReply, element_tag); |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1216 | expandBufAdd4BE(pReply, count); |
| 1217 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1218 | if (IsPrimitiveTag(element_tag)) { |
| 1219 | size_t width = GetTagWidth(element_tag); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1220 | uint8_t* dst = expandBufAddSpace(pReply, count * width); |
| 1221 | if (width == 8) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1222 | 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] | 1223 | for (int i = 0; i < count; ++i) JDWP::Write8BE(&dst, src8[offset + i]); |
| 1224 | } else if (width == 4) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1225 | 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] | 1226 | for (int i = 0; i < count; ++i) JDWP::Write4BE(&dst, src4[offset + i]); |
| 1227 | } else if (width == 2) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1228 | 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] | 1229 | for (int i = 0; i < count; ++i) JDWP::Write2BE(&dst, src2[offset + i]); |
| 1230 | } else { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1231 | 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] | 1232 | memcpy(dst, &src[offset * width], count * width); |
| 1233 | } |
| 1234 | } else { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1235 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1236 | mirror::ObjectArray<mirror::Object>* oa = a->AsObjectArray<mirror::Object>(); |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1237 | for (int i = 0; i < count; ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1238 | mirror::Object* element = oa->Get(offset + i); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1239 | JDWP::JdwpTag specific_tag = (element != nullptr) ? TagFromObject(soa, element) |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1240 | : element_tag; |
Elliott Hughes | 2443799 | 2011-11-30 14:49:33 -0800 | [diff] [blame] | 1241 | expandBufAdd1(pReply, specific_tag); |
| 1242 | expandBufAddObjectId(pReply, gRegistry->Add(element)); |
| 1243 | } |
| 1244 | } |
| 1245 | |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1246 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1247 | } |
| 1248 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1249 | template <typename T> |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1250 | 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] | 1251 | NO_THREAD_SAFETY_ANALYSIS { |
| 1252 | // TODO: fix when annotalysis correctly handles non-member functions. |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1253 | DCHECK(a->GetClass()->IsPrimitiveArray()); |
| 1254 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1255 | T* dst = reinterpret_cast<T*>(a->GetRawData(sizeof(T), offset)); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1256 | for (int i = 0; i < count; ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1257 | *dst++ = src->ReadValue(sizeof(T)); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1258 | } |
| 1259 | } |
| 1260 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1261 | JDWP::JdwpError Dbg::SetArrayElements(JDWP::ObjectId array_id, int offset, int count, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1262 | JDWP::Request* request) { |
| 1263 | JDWP::JdwpError error; |
| 1264 | mirror::Array* dst = DecodeNonNullArray(array_id, &error); |
| 1265 | if (dst == nullptr) { |
| 1266 | return error; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1267 | } |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1268 | |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1269 | if (offset < 0 || count < 0 || offset > dst->GetLength() || dst->GetLength() - offset < count) { |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1270 | LOG(WARNING) << __FUNCTION__ << " access out of bounds: offset=" << offset << "; count=" << count; |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1271 | return JDWP::ERR_INVALID_LENGTH; |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1272 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1273 | JDWP::JdwpTag element_tag = BasicTagFromClass(dst->GetClass()->GetComponentType()); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1274 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1275 | if (IsPrimitiveTag(element_tag)) { |
| 1276 | size_t width = GetTagWidth(element_tag); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1277 | if (width == 8) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1278 | CopyArrayData<uint64_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1279 | } else if (width == 4) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1280 | CopyArrayData<uint32_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1281 | } else if (width == 2) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1282 | CopyArrayData<uint16_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1283 | } else { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1284 | CopyArrayData<uint8_t>(dst, request, offset, count); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1285 | } |
| 1286 | } else { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 1287 | mirror::ObjectArray<mirror::Object>* oa = dst->AsObjectArray<mirror::Object>(); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1288 | for (int i = 0; i < count; ++i) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1289 | JDWP::ObjectId id = request->ReadObjectId(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1290 | mirror::Object* o = gRegistry->Get<mirror::Object*>(id, &error); |
| 1291 | if (error != JDWP::ERR_NONE) { |
| 1292 | return error; |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1293 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1294 | oa->Set<false>(offset + i, o); |
Elliott Hughes | f03b8f6 | 2011-12-02 14:26:25 -0800 | [diff] [blame] | 1295 | } |
| 1296 | } |
| 1297 | |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1298 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1299 | } |
| 1300 | |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1301 | JDWP::ObjectId Dbg::CreateString(const std::string& str) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1302 | return gRegistry->Add(mirror::String::AllocFromModifiedUtf8(Thread::Current(), str.c_str())); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1303 | } |
| 1304 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1305 | JDWP::JdwpError Dbg::CreateObject(JDWP::RefTypeId class_id, JDWP::ObjectId* new_object) { |
| 1306 | JDWP::JdwpError error; |
| 1307 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1308 | if (c == nullptr) { |
| 1309 | *new_object = 0; |
| 1310 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1311 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1312 | *new_object = gRegistry->Add(c->AllocObject(Thread::Current())); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1313 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1314 | } |
| 1315 | |
Elliott Hughes | bf13d36 | 2011-12-08 15:51:37 -0800 | [diff] [blame] | 1316 | /* |
| 1317 | * Used by Eclipse's "Display" view to evaluate "new byte[5]" to get "(byte[]) [0, 0, 0, 0, 0]". |
| 1318 | */ |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1319 | JDWP::JdwpError Dbg::CreateArrayObject(JDWP::RefTypeId array_class_id, uint32_t length, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1320 | JDWP::ObjectId* new_array) { |
| 1321 | JDWP::JdwpError error; |
| 1322 | mirror::Class* c = DecodeClass(array_class_id, &error); |
| 1323 | if (c == nullptr) { |
| 1324 | *new_array = 0; |
| 1325 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1326 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1327 | *new_array = gRegistry->Add(mirror::Array::Alloc<true>(Thread::Current(), c, length, |
Hiroshi Yamauchi | f0edfc3 | 2014-09-25 11:46:46 -0700 | [diff] [blame] | 1328 | c->GetComponentSizeShift(), |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1329 | Runtime::Current()->GetHeap()->GetCurrentAllocator())); |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1330 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1331 | } |
| 1332 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1333 | JDWP::FieldId Dbg::ToFieldId(const mirror::ArtField* f) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1334 | CHECK(!kMovingFields); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1335 | return static_cast<JDWP::FieldId>(reinterpret_cast<uintptr_t>(f)); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1336 | } |
| 1337 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1338 | static JDWP::MethodId ToMethodId(const mirror::ArtMethod* m) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1339 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1340 | CHECK(!kMovingMethods); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1341 | return static_cast<JDWP::MethodId>(reinterpret_cast<uintptr_t>(m)); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1342 | } |
| 1343 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1344 | static mirror::ArtField* FromFieldId(JDWP::FieldId fid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1345 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1346 | CHECK(!kMovingFields); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1347 | return reinterpret_cast<mirror::ArtField*>(static_cast<uintptr_t>(fid)); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1348 | } |
| 1349 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1350 | static mirror::ArtMethod* FromMethodId(JDWP::MethodId mid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1351 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1352 | CHECK(!kMovingMethods); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1353 | return reinterpret_cast<mirror::ArtMethod*>(static_cast<uintptr_t>(mid)); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1354 | } |
| 1355 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1356 | bool Dbg::MatchThread(JDWP::ObjectId expected_thread_id, Thread* event_thread) { |
| 1357 | CHECK(event_thread != nullptr); |
| 1358 | JDWP::JdwpError error; |
| 1359 | mirror::Object* expected_thread_peer = gRegistry->Get<mirror::Object*>(expected_thread_id, |
| 1360 | &error); |
| 1361 | return expected_thread_peer == event_thread->GetPeer(); |
| 1362 | } |
| 1363 | |
| 1364 | bool Dbg::MatchLocation(const JDWP::JdwpLocation& expected_location, |
| 1365 | const JDWP::EventLocation& event_location) { |
| 1366 | if (expected_location.dex_pc != event_location.dex_pc) { |
| 1367 | return false; |
| 1368 | } |
| 1369 | mirror::ArtMethod* m = FromMethodId(expected_location.method_id); |
| 1370 | return m == event_location.method; |
| 1371 | } |
| 1372 | |
| 1373 | bool Dbg::MatchType(mirror::Class* event_class, JDWP::RefTypeId class_id) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1374 | if (event_class == nullptr) { |
| 1375 | return false; |
| 1376 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1377 | JDWP::JdwpError error; |
| 1378 | mirror::Class* expected_class = DecodeClass(class_id, &error); |
| 1379 | CHECK(expected_class != nullptr); |
| 1380 | return expected_class->IsAssignableFrom(event_class); |
| 1381 | } |
| 1382 | |
| 1383 | bool Dbg::MatchField(JDWP::RefTypeId expected_type_id, JDWP::FieldId expected_field_id, |
| 1384 | mirror::ArtField* event_field) { |
| 1385 | mirror::ArtField* expected_field = FromFieldId(expected_field_id); |
| 1386 | if (expected_field != event_field) { |
| 1387 | return false; |
| 1388 | } |
| 1389 | return Dbg::MatchType(event_field->GetDeclaringClass(), expected_type_id); |
| 1390 | } |
| 1391 | |
| 1392 | bool Dbg::MatchInstance(JDWP::ObjectId expected_instance_id, mirror::Object* event_instance) { |
| 1393 | JDWP::JdwpError error; |
| 1394 | mirror::Object* modifier_instance = gRegistry->Get<mirror::Object*>(expected_instance_id, &error); |
| 1395 | return modifier_instance == event_instance; |
| 1396 | } |
| 1397 | |
| 1398 | 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] | 1399 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1400 | if (m == nullptr) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1401 | memset(location, 0, sizeof(*location)); |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 1402 | } else { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1403 | mirror::Class* c = m->GetDeclaringClass(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1404 | location->type_tag = GetTypeTag(c); |
| 1405 | location->class_id = gRegistry->AddRefType(c); |
| 1406 | location->method_id = ToMethodId(m); |
| 1407 | 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] | 1408 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 1409 | } |
| 1410 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1411 | std::string Dbg::GetMethodName(JDWP::MethodId method_id) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1412 | mirror::ArtMethod* m = FromMethodId(method_id); |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1413 | if (m == nullptr) { |
| 1414 | return "NULL"; |
| 1415 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1416 | return m->GetName(); |
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 | std::string Dbg::GetFieldName(JDWP::FieldId field_id) { |
Sebastien Hertz | a9aa0ff | 2014-09-19 12:07:51 +0200 | [diff] [blame] | 1420 | mirror::ArtField* f = FromFieldId(field_id); |
| 1421 | if (f == nullptr) { |
| 1422 | return "NULL"; |
| 1423 | } |
| 1424 | return f->GetName(); |
Elliott Hughes | a96836a | 2013-01-17 12:27:49 -0800 | [diff] [blame] | 1425 | } |
| 1426 | |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1427 | /* |
| 1428 | * Augment the access flags for synthetic methods and fields by setting |
| 1429 | * the (as described by the spec) "0xf0000000 bit". Also, strip out any |
| 1430 | * flags not specified by the Java programming language. |
| 1431 | */ |
| 1432 | static uint32_t MangleAccessFlags(uint32_t accessFlags) { |
| 1433 | accessFlags &= kAccJavaFlagsMask; |
| 1434 | if ((accessFlags & kAccSynthetic) != 0) { |
| 1435 | accessFlags |= 0xf0000000; |
| 1436 | } |
| 1437 | return accessFlags; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1438 | } |
| 1439 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1440 | /* |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1441 | * Circularly shifts registers so that arguments come first. Debuggers |
| 1442 | * expect slots to begin with arguments, but dex code places them at |
| 1443 | * the end. |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1444 | */ |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1445 | static uint16_t MangleSlot(uint16_t slot, mirror::ArtMethod* m) |
| 1446 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1447 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1448 | if (code_item == nullptr) { |
| 1449 | // We should not get here for a method without code (native, proxy or abstract). Log it and |
| 1450 | // return the slot as is since all registers are arguments. |
| 1451 | LOG(WARNING) << "Trying to mangle slot for method without code " << PrettyMethod(m); |
| 1452 | return slot; |
| 1453 | } |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1454 | uint16_t ins_size = code_item->ins_size_; |
| 1455 | uint16_t locals_size = code_item->registers_size_ - ins_size; |
| 1456 | if (slot >= locals_size) { |
| 1457 | return slot - locals_size; |
| 1458 | } else { |
| 1459 | return slot + ins_size; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1460 | } |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1461 | } |
| 1462 | |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1463 | /* |
| 1464 | * Circularly shifts registers so that arguments come last. Reverts |
| 1465 | * slots to dex style argument placement. |
| 1466 | */ |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1467 | static uint16_t DemangleSlot(uint16_t slot, mirror::ArtMethod* m) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1468 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1469 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1470 | if (code_item == nullptr) { |
| 1471 | // We should not get here for a method without code (native, proxy or abstract). Log it and |
| 1472 | // return the slot as is since all registers are arguments. |
| 1473 | LOG(WARNING) << "Trying to demangle slot for method without code " << PrettyMethod(m); |
| 1474 | return slot; |
| 1475 | } |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1476 | uint16_t ins_size = code_item->ins_size_; |
| 1477 | uint16_t locals_size = code_item->registers_size_ - ins_size; |
| 1478 | if (slot < ins_size) { |
| 1479 | return slot + locals_size; |
| 1480 | } else { |
| 1481 | return slot - ins_size; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1482 | } |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1483 | } |
| 1484 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1485 | 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] | 1486 | JDWP::JdwpError error; |
| 1487 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1488 | if (c == nullptr) { |
| 1489 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1490 | } |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1491 | |
| 1492 | size_t instance_field_count = c->NumInstanceFields(); |
| 1493 | size_t static_field_count = c->NumStaticFields(); |
| 1494 | |
| 1495 | expandBufAdd4BE(pReply, instance_field_count + static_field_count); |
| 1496 | |
| 1497 | 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] | 1498 | 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] | 1499 | expandBufAddFieldId(pReply, ToFieldId(f)); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1500 | expandBufAddUtf8String(pReply, f->GetName()); |
| 1501 | expandBufAddUtf8String(pReply, f->GetTypeDescriptor()); |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1502 | if (with_generic) { |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1503 | static const char genericSignature[1] = ""; |
| 1504 | expandBufAddUtf8String(pReply, genericSignature); |
| 1505 | } |
| 1506 | expandBufAdd4BE(pReply, MangleAccessFlags(f->GetAccessFlags())); |
| 1507 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1508 | return JDWP::ERR_NONE; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1509 | } |
| 1510 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1511 | JDWP::JdwpError Dbg::OutputDeclaredMethods(JDWP::RefTypeId class_id, bool with_generic, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1512 | JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1513 | JDWP::JdwpError error; |
| 1514 | mirror::Class* c = DecodeClass(class_id, &error); |
| 1515 | if (c == nullptr) { |
| 1516 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1517 | } |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1518 | |
| 1519 | size_t direct_method_count = c->NumDirectMethods(); |
| 1520 | size_t virtual_method_count = c->NumVirtualMethods(); |
| 1521 | |
| 1522 | expandBufAdd4BE(pReply, direct_method_count + virtual_method_count); |
| 1523 | |
| 1524 | 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] | 1525 | 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] | 1526 | expandBufAddMethodId(pReply, ToMethodId(m)); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1527 | expandBufAddUtf8String(pReply, m->GetName()); |
| 1528 | expandBufAddUtf8String(pReply, m->GetSignature().ToString()); |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1529 | if (with_generic) { |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1530 | static const char genericSignature[1] = ""; |
| 1531 | expandBufAddUtf8String(pReply, genericSignature); |
| 1532 | } |
| 1533 | expandBufAdd4BE(pReply, MangleAccessFlags(m->GetAccessFlags())); |
| 1534 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1535 | return JDWP::ERR_NONE; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1536 | } |
| 1537 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1538 | JDWP::JdwpError Dbg::OutputDeclaredInterfaces(JDWP::RefTypeId class_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1539 | JDWP::JdwpError error; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1540 | Thread* self = Thread::Current(); |
| 1541 | StackHandleScope<1> hs(self); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1542 | Handle<mirror::Class> c(hs.NewHandle(DecodeClass(class_id, &error))); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1543 | if (c.Get() == nullptr) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1544 | return error; |
Elliott Hughes | 7b3cdfc | 2011-12-08 21:28:17 -0800 | [diff] [blame] | 1545 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1546 | size_t interface_count = c->NumDirectInterfaces(); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1547 | expandBufAdd4BE(pReply, interface_count); |
| 1548 | for (size_t i = 0; i < interface_count; ++i) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1549 | expandBufAddRefTypeId(pReply, |
| 1550 | gRegistry->AddRefType(mirror::Class::GetDirectInterface(self, c, i))); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1551 | } |
Elliott Hughes | 436e372 | 2012-02-17 20:01:47 -0800 | [diff] [blame] | 1552 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1553 | } |
| 1554 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1555 | void Dbg::OutputLineTable(JDWP::RefTypeId, JDWP::MethodId method_id, JDWP::ExpandBuf* pReply) { |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1556 | struct DebugCallbackContext { |
| 1557 | int numItems; |
| 1558 | JDWP::ExpandBuf* pReply; |
| 1559 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1560 | static bool Callback(void* context, uint32_t address, uint32_t line_number) { |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1561 | DebugCallbackContext* pContext = reinterpret_cast<DebugCallbackContext*>(context); |
| 1562 | expandBufAdd8BE(pContext->pReply, address); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1563 | expandBufAdd4BE(pContext->pReply, line_number); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1564 | pContext->numItems++; |
Sebastien Hertz | f2910ee | 2013-10-19 16:39:24 +0200 | [diff] [blame] | 1565 | return false; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1566 | } |
| 1567 | }; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1568 | mirror::ArtMethod* m = FromMethodId(method_id); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1569 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1570 | uint64_t start, end; |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1571 | if (code_item == nullptr) { |
| 1572 | DCHECK(m->IsNative() || m->IsProxyMethod()); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1573 | start = -1; |
| 1574 | end = -1; |
| 1575 | } else { |
| 1576 | start = 0; |
jeffhao | 14f0db9 | 2012-12-14 17:50:42 -0800 | [diff] [blame] | 1577 | // Return the index of the last instruction |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1578 | end = code_item->insns_size_in_code_units_ - 1; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1579 | } |
| 1580 | |
| 1581 | expandBufAdd8BE(pReply, start); |
| 1582 | expandBufAdd8BE(pReply, end); |
| 1583 | |
| 1584 | // Add numLines later |
| 1585 | size_t numLinesOffset = expandBufGetLength(pReply); |
| 1586 | expandBufAdd4BE(pReply, 0); |
| 1587 | |
| 1588 | DebugCallbackContext context; |
| 1589 | context.numItems = 0; |
| 1590 | context.pReply = pReply; |
| 1591 | |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1592 | if (code_item != nullptr) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1593 | m->GetDexFile()->DecodeDebugInfo(code_item, m->IsStatic(), m->GetDexMethodIndex(), |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1594 | DebugCallbackContext::Callback, nullptr, &context); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1595 | } |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 1596 | |
| 1597 | JDWP::Set4BE(expandBufGetBuffer(pReply) + numLinesOffset, context.numItems); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1598 | } |
| 1599 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1600 | void Dbg::OutputVariableTable(JDWP::RefTypeId, JDWP::MethodId method_id, bool with_generic, |
| 1601 | JDWP::ExpandBuf* pReply) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1602 | struct DebugCallbackContext { |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1603 | mirror::ArtMethod* method; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1604 | JDWP::ExpandBuf* pReply; |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1605 | size_t variable_count; |
| 1606 | bool with_generic; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1607 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1608 | static void Callback(void* context, uint16_t slot, uint32_t startAddress, uint32_t endAddress, |
| 1609 | const char* name, const char* descriptor, const char* signature) |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1610 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1611 | DebugCallbackContext* pContext = reinterpret_cast<DebugCallbackContext*>(context); |
| 1612 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1613 | VLOG(jdwp) << StringPrintf(" %2zd: %d(%d) '%s' '%s' '%s' actual slot=%d mangled slot=%d", |
| 1614 | pContext->variable_count, startAddress, endAddress - startAddress, |
| 1615 | name, descriptor, signature, slot, |
| 1616 | MangleSlot(slot, pContext->method)); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1617 | |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1618 | slot = MangleSlot(slot, pContext->method); |
Elliott Hughes | 68fdbd0 | 2011-11-29 19:22:47 -0800 | [diff] [blame] | 1619 | |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1620 | expandBufAdd8BE(pContext->pReply, startAddress); |
| 1621 | expandBufAddUtf8String(pContext->pReply, name); |
| 1622 | expandBufAddUtf8String(pContext->pReply, descriptor); |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1623 | if (pContext->with_generic) { |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1624 | expandBufAddUtf8String(pContext->pReply, signature); |
| 1625 | } |
| 1626 | expandBufAdd4BE(pContext->pReply, endAddress - startAddress); |
| 1627 | expandBufAdd4BE(pContext->pReply, slot); |
| 1628 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1629 | ++pContext->variable_count; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1630 | } |
| 1631 | }; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1632 | mirror::ArtMethod* m = FromMethodId(method_id); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1633 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1634 | // arg_count considers doubles and longs to take 2 units. |
| 1635 | // variable_count considers everything to take 1 unit. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1636 | std::string shorty(m->GetShorty()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1637 | expandBufAdd4BE(pReply, mirror::ArtMethod::NumArgRegisters(shorty)); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1638 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1639 | // We don't know the total number of variables yet, so leave a blank and update it later. |
| 1640 | size_t variable_count_offset = expandBufGetLength(pReply); |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1641 | expandBufAdd4BE(pReply, 0); |
| 1642 | |
| 1643 | DebugCallbackContext context; |
Jeff Hao | b7cefc7 | 2013-11-14 14:51:09 -0800 | [diff] [blame] | 1644 | context.method = m; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1645 | context.pReply = pReply; |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1646 | context.variable_count = 0; |
| 1647 | context.with_generic = with_generic; |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1648 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1649 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1650 | if (code_item != nullptr) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1651 | m->GetDexFile()->DecodeDebugInfo( |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1652 | code_item, m->IsStatic(), m->GetDexMethodIndex(), nullptr, DebugCallbackContext::Callback, |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1653 | &context); |
Sebastien Hertz | cb19ebf | 2014-03-11 15:26:35 +0100 | [diff] [blame] | 1654 | } |
Elliott Hughes | dbb4079 | 2011-11-18 17:05:22 -0800 | [diff] [blame] | 1655 | |
Elliott Hughes | c5b734a | 2011-12-01 17:20:58 -0800 | [diff] [blame] | 1656 | JDWP::Set4BE(expandBufGetBuffer(pReply) + variable_count_offset, context.variable_count); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1657 | } |
| 1658 | |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1659 | void Dbg::OutputMethodReturnValue(JDWP::MethodId method_id, const JValue* return_value, |
| 1660 | JDWP::ExpandBuf* pReply) { |
| 1661 | mirror::ArtMethod* m = FromMethodId(method_id); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1662 | JDWP::JdwpTag tag = BasicTagFromDescriptor(m->GetShorty()); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1663 | OutputJValue(tag, return_value, pReply); |
| 1664 | } |
| 1665 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 1666 | void Dbg::OutputFieldValue(JDWP::FieldId field_id, const JValue* field_value, |
| 1667 | JDWP::ExpandBuf* pReply) { |
| 1668 | mirror::ArtField* f = FromFieldId(field_id); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1669 | JDWP::JdwpTag tag = BasicTagFromDescriptor(f->GetTypeDescriptor()); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 1670 | OutputJValue(tag, field_value, pReply); |
| 1671 | } |
| 1672 | |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1673 | JDWP::JdwpError Dbg::GetBytecodes(JDWP::RefTypeId, JDWP::MethodId method_id, |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1674 | std::vector<uint8_t>* bytecodes) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1675 | mirror::ArtMethod* m = FromMethodId(method_id); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1676 | if (m == nullptr) { |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1677 | return JDWP::ERR_INVALID_METHODID; |
| 1678 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1679 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1680 | size_t byte_count = code_item->insns_size_in_code_units_ * 2; |
| 1681 | const uint8_t* begin = reinterpret_cast<const uint8_t*>(code_item->insns_); |
| 1682 | const uint8_t* end = begin + byte_count; |
| 1683 | for (const uint8_t* p = begin; p != end; ++p) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1684 | bytecodes->push_back(*p); |
Elliott Hughes | 9777ba2 | 2013-01-17 09:04:19 -0800 | [diff] [blame] | 1685 | } |
| 1686 | return JDWP::ERR_NONE; |
| 1687 | } |
| 1688 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1689 | JDWP::JdwpTag Dbg::GetFieldBasicTag(JDWP::FieldId field_id) { |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1690 | return BasicTagFromDescriptor(FromFieldId(field_id)->GetTypeDescriptor()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1691 | } |
| 1692 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1693 | JDWP::JdwpTag Dbg::GetStaticFieldBasicTag(JDWP::FieldId field_id) { |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1694 | return BasicTagFromDescriptor(FromFieldId(field_id)->GetTypeDescriptor()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1695 | } |
| 1696 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1697 | static JDWP::JdwpError GetFieldValueImpl(JDWP::RefTypeId ref_type_id, JDWP::ObjectId object_id, |
| 1698 | JDWP::FieldId field_id, JDWP::ExpandBuf* pReply, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1699 | bool is_static) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1700 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1701 | JDWP::JdwpError error; |
| 1702 | mirror::Class* c = DecodeClass(ref_type_id, &error); |
| 1703 | if (ref_type_id != 0 && c == nullptr) { |
| 1704 | return error; |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1705 | } |
| 1706 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1707 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(object_id, &error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1708 | if ((!is_static && o == nullptr) || error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1709 | return JDWP::ERR_INVALID_OBJECT; |
| 1710 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1711 | mirror::ArtField* f = FromFieldId(field_id); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1712 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1713 | mirror::Class* receiver_class = c; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1714 | if (receiver_class == nullptr && o != nullptr) { |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1715 | receiver_class = o->GetClass(); |
| 1716 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1717 | // TODO: should we give up now if receiver_class is nullptr? |
| 1718 | if (receiver_class != nullptr && !f->GetDeclaringClass()->IsAssignableFrom(receiver_class)) { |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1719 | LOG(INFO) << "ERR_INVALID_FIELDID: " << PrettyField(f) << " " << PrettyClass(receiver_class); |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1720 | return JDWP::ERR_INVALID_FIELDID; |
| 1721 | } |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1722 | |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1723 | // The RI only enforces the static/non-static mismatch in one direction. |
| 1724 | // TODO: should we change the tests and check both? |
| 1725 | if (is_static) { |
| 1726 | if (!f->IsStatic()) { |
| 1727 | return JDWP::ERR_INVALID_FIELDID; |
| 1728 | } |
| 1729 | } else { |
| 1730 | if (f->IsStatic()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1731 | LOG(WARNING) << "Ignoring non-nullptr receiver for ObjectReference.SetValues on static field " |
| 1732 | << PrettyField(f); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1733 | } |
| 1734 | } |
jeffhao | 0dfbb7e | 2012-11-28 15:26:03 -0800 | [diff] [blame] | 1735 | if (f->IsStatic()) { |
| 1736 | o = f->GetDeclaringClass(); |
| 1737 | } |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1738 | |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1739 | JDWP::JdwpTag tag = BasicTagFromDescriptor(f->GetTypeDescriptor()); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1740 | JValue field_value; |
| 1741 | if (tag == JDWP::JT_VOID) { |
| 1742 | LOG(FATAL) << "Unknown tag: " << tag; |
| 1743 | } else if (!IsPrimitiveTag(tag)) { |
| 1744 | field_value.SetL(f->GetObject(o)); |
| 1745 | } else if (tag == JDWP::JT_DOUBLE || tag == JDWP::JT_LONG) { |
| 1746 | field_value.SetJ(f->Get64(o)); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1747 | } else { |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1748 | field_value.SetI(f->Get32(o)); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1749 | } |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1750 | Dbg::OutputJValue(tag, &field_value, pReply); |
| 1751 | |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1752 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1753 | } |
| 1754 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1755 | JDWP::JdwpError Dbg::GetFieldValue(JDWP::ObjectId object_id, JDWP::FieldId field_id, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1756 | JDWP::ExpandBuf* pReply) { |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1757 | return GetFieldValueImpl(0, object_id, field_id, pReply, false); |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1758 | } |
| 1759 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1760 | JDWP::JdwpError Dbg::GetStaticFieldValue(JDWP::RefTypeId ref_type_id, JDWP::FieldId field_id, |
| 1761 | JDWP::ExpandBuf* pReply) { |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1762 | return GetFieldValueImpl(ref_type_id, 0, field_id, pReply, true); |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1763 | } |
| 1764 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1765 | static JDWP::JdwpError SetFieldValueImpl(JDWP::ObjectId object_id, JDWP::FieldId field_id, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1766 | uint64_t value, int width, bool is_static) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1767 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1768 | JDWP::JdwpError error; |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1769 | mirror::Object* o = Dbg::GetObjectRegistry()->Get<mirror::Object*>(object_id, &error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1770 | if ((!is_static && o == nullptr) || error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1771 | return JDWP::ERR_INVALID_OBJECT; |
| 1772 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1773 | mirror::ArtField* f = FromFieldId(field_id); |
Elliott Hughes | 0cf7433 | 2012-02-23 23:14:00 -0800 | [diff] [blame] | 1774 | |
| 1775 | // The RI only enforces the static/non-static mismatch in one direction. |
| 1776 | // TODO: should we change the tests and check both? |
| 1777 | if (is_static) { |
| 1778 | if (!f->IsStatic()) { |
| 1779 | return JDWP::ERR_INVALID_FIELDID; |
| 1780 | } |
| 1781 | } else { |
| 1782 | if (f->IsStatic()) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1783 | 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] | 1784 | } |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1785 | } |
jeffhao | 0dfbb7e | 2012-11-28 15:26:03 -0800 | [diff] [blame] | 1786 | if (f->IsStatic()) { |
| 1787 | o = f->GetDeclaringClass(); |
| 1788 | } |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1789 | |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1790 | JDWP::JdwpTag tag = BasicTagFromDescriptor(f->GetTypeDescriptor()); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1791 | |
| 1792 | if (IsPrimitiveTag(tag)) { |
| 1793 | if (tag == JDWP::JT_DOUBLE || tag == JDWP::JT_LONG) { |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1794 | CHECK_EQ(width, 8); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1795 | // Debugging can't use transactional mode (runtime only). |
| 1796 | f->Set64<false>(o, value); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1797 | } else { |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1798 | CHECK_LE(width, 4); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1799 | // Debugging can't use transactional mode (runtime only). |
| 1800 | f->Set32<false>(o, value); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1801 | } |
| 1802 | } else { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1803 | mirror::Object* v = Dbg::GetObjectRegistry()->Get<mirror::Object*>(value, &error); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1804 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1805 | return JDWP::ERR_INVALID_OBJECT; |
| 1806 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1807 | if (v != nullptr) { |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1808 | mirror::Class* field_type; |
| 1809 | { |
| 1810 | StackHandleScope<3> hs(Thread::Current()); |
| 1811 | HandleWrapper<mirror::Object> h_v(hs.NewHandleWrapper(&v)); |
| 1812 | HandleWrapper<mirror::ArtField> h_f(hs.NewHandleWrapper(&f)); |
| 1813 | HandleWrapper<mirror::Object> h_o(hs.NewHandleWrapper(&o)); |
Ian Rogers | 08f1f50 | 2014-12-02 15:04:37 -0800 | [diff] [blame] | 1814 | field_type = h_f->GetType(true); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 1815 | } |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 1816 | if (!field_type->IsAssignableFrom(v->GetClass())) { |
| 1817 | return JDWP::ERR_INVALID_OBJECT; |
| 1818 | } |
| 1819 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1820 | // Debugging can't use transactional mode (runtime only). |
| 1821 | f->SetObject<false>(o, v); |
Elliott Hughes | aed4be9 | 2011-12-02 16:16:23 -0800 | [diff] [blame] | 1822 | } |
Elliott Hughes | 3d1ca6d | 2012-02-13 15:43:19 -0800 | [diff] [blame] | 1823 | |
| 1824 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1825 | } |
| 1826 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1827 | 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] | 1828 | int width) { |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1829 | return SetFieldValueImpl(object_id, field_id, value, width, false); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1830 | } |
| 1831 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 1832 | JDWP::JdwpError Dbg::SetStaticFieldValue(JDWP::FieldId field_id, uint64_t value, int width) { |
| 1833 | return SetFieldValueImpl(0, field_id, value, width, true); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1834 | } |
| 1835 | |
Sebastien Hertz | b0b0b49 | 2014-09-15 11:27:27 +0200 | [diff] [blame] | 1836 | JDWP::JdwpError Dbg::StringToUtf8(JDWP::ObjectId string_id, std::string* str) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1837 | JDWP::JdwpError error; |
Sebastien Hertz | b0b0b49 | 2014-09-15 11:27:27 +0200 | [diff] [blame] | 1838 | mirror::Object* obj = gRegistry->Get<mirror::Object*>(string_id, &error); |
| 1839 | if (error != JDWP::ERR_NONE) { |
| 1840 | return error; |
| 1841 | } |
| 1842 | if (obj == nullptr) { |
| 1843 | return JDWP::ERR_INVALID_OBJECT; |
| 1844 | } |
| 1845 | { |
| 1846 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1847 | mirror::Class* java_lang_String = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_String); |
| 1848 | if (!java_lang_String->IsAssignableFrom(obj->GetClass())) { |
| 1849 | // This isn't a string. |
| 1850 | return JDWP::ERR_INVALID_STRING; |
| 1851 | } |
| 1852 | } |
| 1853 | *str = obj->AsString()->ToModifiedUtf8(); |
| 1854 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1855 | } |
| 1856 | |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1857 | void Dbg::OutputJValue(JDWP::JdwpTag tag, const JValue* return_value, JDWP::ExpandBuf* pReply) { |
| 1858 | if (IsPrimitiveTag(tag)) { |
| 1859 | expandBufAdd1(pReply, tag); |
| 1860 | if (tag == JDWP::JT_BOOLEAN || tag == JDWP::JT_BYTE) { |
| 1861 | expandBufAdd1(pReply, return_value->GetI()); |
| 1862 | } else if (tag == JDWP::JT_CHAR || tag == JDWP::JT_SHORT) { |
| 1863 | expandBufAdd2BE(pReply, return_value->GetI()); |
| 1864 | } else if (tag == JDWP::JT_FLOAT || tag == JDWP::JT_INT) { |
| 1865 | expandBufAdd4BE(pReply, return_value->GetI()); |
| 1866 | } else if (tag == JDWP::JT_DOUBLE || tag == JDWP::JT_LONG) { |
| 1867 | expandBufAdd8BE(pReply, return_value->GetJ()); |
| 1868 | } else { |
| 1869 | CHECK_EQ(tag, JDWP::JT_VOID); |
| 1870 | } |
| 1871 | } else { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1872 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1873 | mirror::Object* value = return_value->GetL(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1874 | expandBufAdd1(pReply, TagFromObject(soa, value)); |
Jeff Hao | 579b024 | 2013-11-18 13:16:49 -0800 | [diff] [blame] | 1875 | expandBufAddObjectId(pReply, gRegistry->Add(value)); |
| 1876 | } |
| 1877 | } |
| 1878 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1879 | JDWP::JdwpError Dbg::GetThreadName(JDWP::ObjectId thread_id, std::string* name) { |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 1880 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1881 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1882 | JDWP::JdwpError error; |
| 1883 | Thread* thread = DecodeThread(soa, thread_id, &error); |
| 1884 | UNUSED(thread); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1885 | if (error != JDWP::ERR_NONE && error != JDWP::ERR_THREAD_NOT_ALIVE) { |
| 1886 | return error; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 1887 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1888 | |
| 1889 | // 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] | 1890 | mirror::Object* thread_object = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 1891 | CHECK(thread_object != nullptr) << error; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1892 | mirror::ArtField* java_lang_Thread_name_field = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1893 | soa.DecodeField(WellKnownClasses::java_lang_Thread_name); |
| 1894 | mirror::String* s = |
| 1895 | reinterpret_cast<mirror::String*>(java_lang_Thread_name_field->GetObject(thread_object)); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1896 | if (s != nullptr) { |
| 1897 | *name = s->ToModifiedUtf8(); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1898 | } |
| 1899 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1900 | } |
| 1901 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1902 | JDWP::JdwpError Dbg::GetThreadGroup(JDWP::ObjectId thread_id, JDWP::ExpandBuf* pReply) { |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1903 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1904 | JDWP::JdwpError error; |
| 1905 | mirror::Object* thread_object = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 1906 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1907 | return JDWP::ERR_INVALID_OBJECT; |
| 1908 | } |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 1909 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Debugger: GetThreadGroup"); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 1910 | // Okay, so it's an object, but is it actually a thread? |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1911 | { |
| 1912 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1913 | Thread* thread = DecodeThread(soa, thread_id, &error); |
| 1914 | UNUSED(thread); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1915 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1916 | if (error == JDWP::ERR_THREAD_NOT_ALIVE) { |
| 1917 | // Zombie threads are in the null group. |
| 1918 | expandBufAddObjectId(pReply, JDWP::ObjectId(0)); |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 1919 | error = JDWP::ERR_NONE; |
| 1920 | } else if (error == JDWP::ERR_NONE) { |
| 1921 | mirror::Class* c = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread); |
| 1922 | CHECK(c != nullptr); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 1923 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_group); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1924 | CHECK(f != nullptr); |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 1925 | mirror::Object* group = f->GetObject(thread_object); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 1926 | CHECK(group != nullptr); |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 1927 | JDWP::ObjectId thread_group_id = gRegistry->Add(group); |
| 1928 | expandBufAddObjectId(pReply, thread_group_id); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 1929 | } |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 1930 | return error; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1931 | } |
| 1932 | |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1933 | static mirror::Object* DecodeThreadGroup(ScopedObjectAccessUnchecked& soa, |
| 1934 | JDWP::ObjectId thread_group_id, JDWP::JdwpError* error) |
| 1935 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 1936 | mirror::Object* thread_group = Dbg::GetObjectRegistry()->Get<mirror::Object*>(thread_group_id, |
| 1937 | error); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1938 | if (*error != JDWP::ERR_NONE) { |
| 1939 | return nullptr; |
| 1940 | } |
| 1941 | if (thread_group == nullptr) { |
| 1942 | *error = JDWP::ERR_INVALID_OBJECT; |
| 1943 | return nullptr; |
| 1944 | } |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1945 | mirror::Class* c = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ThreadGroup); |
| 1946 | CHECK(c != nullptr); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1947 | if (!c->IsAssignableFrom(thread_group->GetClass())) { |
| 1948 | // This is not a java.lang.ThreadGroup. |
| 1949 | *error = JDWP::ERR_INVALID_THREAD_GROUP; |
| 1950 | return nullptr; |
| 1951 | } |
| 1952 | *error = JDWP::ERR_NONE; |
| 1953 | return thread_group; |
| 1954 | } |
| 1955 | |
| 1956 | JDWP::JdwpError Dbg::GetThreadGroupName(JDWP::ObjectId thread_group_id, JDWP::ExpandBuf* pReply) { |
| 1957 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 1958 | JDWP::JdwpError error; |
| 1959 | mirror::Object* thread_group = DecodeThreadGroup(soa, thread_group_id, &error); |
| 1960 | if (error != JDWP::ERR_NONE) { |
| 1961 | return error; |
| 1962 | } |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 1963 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Debugger: GetThreadGroupName"); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 1964 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1965 | CHECK(f != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1966 | mirror::String* s = reinterpret_cast<mirror::String*>(f->GetObject(thread_group)); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1967 | |
| 1968 | std::string thread_group_name(s->ToModifiedUtf8()); |
| 1969 | expandBufAddUtf8String(pReply, thread_group_name); |
| 1970 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 1971 | } |
| 1972 | |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1973 | JDWP::JdwpError Dbg::GetThreadGroupParent(JDWP::ObjectId thread_group_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1974 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1975 | JDWP::JdwpError error; |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1976 | mirror::Object* thread_group = DecodeThreadGroup(soa, thread_group_id, &error); |
| 1977 | if (error != JDWP::ERR_NONE) { |
| 1978 | return error; |
| 1979 | } |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 1980 | mirror::Object* parent; |
| 1981 | { |
| 1982 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Debugger: GetThreadGroupParent"); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 1983 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_parent); |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 1984 | CHECK(f != nullptr); |
| 1985 | parent = f->GetObject(thread_group); |
| 1986 | } |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1987 | JDWP::ObjectId parent_group_id = gRegistry->Add(parent); |
| 1988 | expandBufAddObjectId(pReply, parent_group_id); |
| 1989 | return JDWP::ERR_NONE; |
| 1990 | } |
| 1991 | |
| 1992 | static void GetChildThreadGroups(ScopedObjectAccessUnchecked& soa, mirror::Object* thread_group, |
| 1993 | std::vector<JDWP::ObjectId>* child_thread_group_ids) |
| 1994 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 1995 | CHECK(thread_group != nullptr); |
| 1996 | |
| 1997 | // Get the ArrayList<ThreadGroup> "groups" out of this thread group... |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 1998 | mirror::ArtField* groups_field = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_groups); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 1999 | mirror::Object* groups_array_list = groups_field->GetObject(thread_group); |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2000 | { |
| 2001 | // The "groups" field is declared as a java.util.List: check it really is |
| 2002 | // an instance of java.util.ArrayList. |
| 2003 | CHECK(groups_array_list != nullptr); |
| 2004 | mirror::Class* java_util_ArrayList_class = |
| 2005 | soa.Decode<mirror::Class*>(WellKnownClasses::java_util_ArrayList); |
| 2006 | CHECK(groups_array_list->InstanceOf(java_util_ArrayList_class)); |
| 2007 | } |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2008 | |
| 2009 | // Get the array and size out of the ArrayList<ThreadGroup>... |
Sebastien Hertz | e49e195 | 2014-10-13 11:27:13 +0200 | [diff] [blame] | 2010 | mirror::ArtField* array_field = soa.DecodeField(WellKnownClasses::java_util_ArrayList_array); |
| 2011 | mirror::ArtField* size_field = soa.DecodeField(WellKnownClasses::java_util_ArrayList_size); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2012 | mirror::ObjectArray<mirror::Object>* groups_array = |
| 2013 | array_field->GetObject(groups_array_list)->AsObjectArray<mirror::Object>(); |
| 2014 | const int32_t size = size_field->GetInt(groups_array_list); |
| 2015 | |
| 2016 | // Copy the first 'size' elements out of the array into the result. |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2017 | ObjectRegistry* registry = Dbg::GetObjectRegistry(); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2018 | for (int32_t i = 0; i < size; ++i) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2019 | child_thread_group_ids->push_back(registry->Add(groups_array->Get(i))); |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2020 | } |
| 2021 | } |
| 2022 | |
| 2023 | JDWP::JdwpError Dbg::GetThreadGroupChildren(JDWP::ObjectId thread_group_id, |
| 2024 | JDWP::ExpandBuf* pReply) { |
| 2025 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 2026 | JDWP::JdwpError error; |
| 2027 | mirror::Object* thread_group = DecodeThreadGroup(soa, thread_group_id, &error); |
| 2028 | if (error != JDWP::ERR_NONE) { |
| 2029 | return error; |
| 2030 | } |
| 2031 | |
| 2032 | // Add child threads. |
| 2033 | { |
| 2034 | std::vector<JDWP::ObjectId> child_thread_ids; |
| 2035 | GetThreads(thread_group, &child_thread_ids); |
| 2036 | expandBufAdd4BE(pReply, child_thread_ids.size()); |
| 2037 | for (JDWP::ObjectId child_thread_id : child_thread_ids) { |
| 2038 | expandBufAddObjectId(pReply, child_thread_id); |
| 2039 | } |
| 2040 | } |
| 2041 | |
| 2042 | // Add child thread groups. |
| 2043 | { |
| 2044 | std::vector<JDWP::ObjectId> child_thread_groups_ids; |
| 2045 | GetChildThreadGroups(soa, thread_group, &child_thread_groups_ids); |
| 2046 | expandBufAdd4BE(pReply, child_thread_groups_ids.size()); |
| 2047 | for (JDWP::ObjectId child_thread_group_id : child_thread_groups_ids) { |
| 2048 | expandBufAddObjectId(pReply, child_thread_group_id); |
| 2049 | } |
| 2050 | } |
| 2051 | |
| 2052 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2053 | } |
| 2054 | |
| 2055 | JDWP::ObjectId Dbg::GetSystemThreadGroupId() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2056 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2057 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2058 | mirror::Object* group = f->GetObject(f->GetDeclaringClass()); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 2059 | return gRegistry->Add(group); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2060 | } |
| 2061 | |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2062 | JDWP::JdwpThreadStatus Dbg::ToJdwpThreadStatus(ThreadState state) { |
| 2063 | switch (state) { |
| 2064 | case kBlocked: |
| 2065 | return JDWP::TS_MONITOR; |
| 2066 | case kNative: |
| 2067 | case kRunnable: |
| 2068 | case kSuspended: |
| 2069 | return JDWP::TS_RUNNING; |
| 2070 | case kSleeping: |
| 2071 | return JDWP::TS_SLEEPING; |
| 2072 | case kStarting: |
| 2073 | case kTerminated: |
| 2074 | return JDWP::TS_ZOMBIE; |
| 2075 | case kTimedWaiting: |
Sebastien Hertz | bae182c | 2013-12-17 10:42:03 +0100 | [diff] [blame] | 2076 | case kWaitingForCheckPointsToRun: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2077 | case kWaitingForDebuggerSend: |
| 2078 | case kWaitingForDebuggerSuspension: |
| 2079 | case kWaitingForDebuggerToAttach: |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 2080 | case kWaitingForDeoptimization: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2081 | case kWaitingForGcToComplete: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2082 | case kWaitingForJniOnLoad: |
Sebastien Hertz | bae182c | 2013-12-17 10:42:03 +0100 | [diff] [blame] | 2083 | case kWaitingForMethodTracingStart: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2084 | case kWaitingForSignalCatcherOutput: |
Hiroshi Yamauchi | 0c8c303 | 2015-01-16 16:54:35 -0800 | [diff] [blame] | 2085 | case kWaitingForVisitObjects: |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2086 | case kWaitingInMainDebuggerLoop: |
| 2087 | case kWaitingInMainSignalCatcherLoop: |
| 2088 | case kWaitingPerformingGc: |
| 2089 | case kWaiting: |
| 2090 | return JDWP::TS_WAIT; |
| 2091 | // Don't add a 'default' here so the compiler can spot incompatible enum changes. |
| 2092 | } |
| 2093 | LOG(FATAL) << "Unknown thread state: " << state; |
| 2094 | return JDWP::TS_ZOMBIE; |
| 2095 | } |
| 2096 | |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 2097 | JDWP::JdwpError Dbg::GetThreadStatus(JDWP::ObjectId thread_id, JDWP::JdwpThreadStatus* pThreadStatus, |
| 2098 | JDWP::JdwpSuspendStatus* pSuspendStatus) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2099 | ScopedObjectAccess soa(Thread::Current()); |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 2100 | |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 2101 | *pSuspendStatus = JDWP::SUSPEND_STATUS_NOT_SUSPENDED; |
| 2102 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2103 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2104 | JDWP::JdwpError error; |
| 2105 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2106 | if (error != JDWP::ERR_NONE) { |
| 2107 | if (error == JDWP::ERR_THREAD_NOT_ALIVE) { |
| 2108 | *pThreadStatus = JDWP::TS_ZOMBIE; |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2109 | return JDWP::ERR_NONE; |
| 2110 | } |
| 2111 | return error; |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 2112 | } |
| 2113 | |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 2114 | if (IsSuspendedForDebugger(soa, thread)) { |
| 2115 | *pSuspendStatus = JDWP::SUSPEND_STATUS_SUSPENDED; |
Elliott Hughes | 499c513 | 2011-11-17 14:55:11 -0800 | [diff] [blame] | 2116 | } |
| 2117 | |
Jeff Hao | 920af3e | 2013-08-28 15:46:38 -0700 | [diff] [blame] | 2118 | *pThreadStatus = ToJdwpThreadStatus(thread->GetState()); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2119 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2120 | } |
| 2121 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2122 | JDWP::JdwpError Dbg::GetThreadDebugSuspendCount(JDWP::ObjectId thread_id, JDWP::ExpandBuf* pReply) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2123 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2124 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2125 | JDWP::JdwpError error; |
| 2126 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2127 | if (error != JDWP::ERR_NONE) { |
| 2128 | return error; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2129 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2130 | MutexLock mu2(soa.Self(), *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2131 | expandBufAdd4BE(pReply, thread->GetDebugSuspendCount()); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2132 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2133 | } |
| 2134 | |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 2135 | JDWP::JdwpError Dbg::Interrupt(JDWP::ObjectId thread_id) { |
| 2136 | ScopedObjectAccess soa(Thread::Current()); |
| 2137 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2138 | JDWP::JdwpError error; |
| 2139 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 2140 | if (error != JDWP::ERR_NONE) { |
| 2141 | return error; |
| 2142 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2143 | thread->Interrupt(soa.Self()); |
Elliott Hughes | f950170 | 2013-01-11 11:22:27 -0800 | [diff] [blame] | 2144 | return JDWP::ERR_NONE; |
| 2145 | } |
| 2146 | |
Sebastien Hertz | 070f732 | 2014-09-09 12:08:49 +0200 | [diff] [blame] | 2147 | static bool IsInDesiredThreadGroup(ScopedObjectAccessUnchecked& soa, |
| 2148 | mirror::Object* desired_thread_group, mirror::Object* peer) |
| 2149 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2150 | // Do we want threads from all thread groups? |
| 2151 | if (desired_thread_group == nullptr) { |
| 2152 | return true; |
| 2153 | } |
| 2154 | mirror::ArtField* thread_group_field = soa.DecodeField(WellKnownClasses::java_lang_Thread_group); |
| 2155 | DCHECK(thread_group_field != nullptr); |
| 2156 | mirror::Object* group = thread_group_field->GetObject(peer); |
| 2157 | return (group == desired_thread_group); |
| 2158 | } |
| 2159 | |
Sebastien Hertz | a06430c | 2014-09-15 19:21:30 +0200 | [diff] [blame] | 2160 | 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] | 2161 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 070f732 | 2014-09-09 12:08:49 +0200 | [diff] [blame] | 2162 | std::list<Thread*> all_threads_list; |
| 2163 | { |
| 2164 | MutexLock mu(Thread::Current(), *Locks::thread_list_lock_); |
| 2165 | all_threads_list = Runtime::Current()->GetThreadList()->GetList(); |
| 2166 | } |
| 2167 | for (Thread* t : all_threads_list) { |
| 2168 | if (t == Dbg::GetDebugThread()) { |
| 2169 | // Skip the JDWP thread. Some debuggers get bent out of shape when they can't suspend and |
| 2170 | // query all threads, so it's easier if we just don't tell them about this thread. |
| 2171 | continue; |
| 2172 | } |
| 2173 | if (t->IsStillStarting()) { |
| 2174 | // This thread is being started (and has been registered in the thread list). However, it is |
| 2175 | // not completely started yet so we must ignore it. |
| 2176 | continue; |
| 2177 | } |
| 2178 | mirror::Object* peer = t->GetPeer(); |
| 2179 | if (peer == nullptr) { |
| 2180 | // peer might be NULL if the thread is still starting up. We can't tell the debugger about |
| 2181 | // this thread yet. |
| 2182 | // TODO: if we identified threads to the debugger by their Thread* |
| 2183 | // rather than their peer's mirror::Object*, we could fix this. |
| 2184 | // Doing so might help us report ZOMBIE threads too. |
| 2185 | continue; |
| 2186 | } |
| 2187 | if (IsInDesiredThreadGroup(soa, thread_group, peer)) { |
| 2188 | thread_ids->push_back(gRegistry->Add(peer)); |
| 2189 | } |
| 2190 | } |
Elliott Hughes | caf7654 | 2012-06-28 16:08:22 -0700 | [diff] [blame] | 2191 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 2192 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2193 | static int GetStackDepth(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2194 | struct CountStackDepthVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2195 | explicit CountStackDepthVisitor(Thread* thread_in) |
| 2196 | : StackVisitor(thread_in, nullptr), depth(0) {} |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2197 | |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 2198 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2199 | // annotalysis. |
| 2200 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2201 | if (!GetMethod()->IsRuntimeMethod()) { |
Elliott Hughes | f8a2df7 | 2011-12-01 12:19:54 -0800 | [diff] [blame] | 2202 | ++depth; |
| 2203 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2204 | return true; |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 2205 | } |
| 2206 | size_t depth; |
| 2207 | }; |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 2208 | |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2209 | CountStackDepthVisitor visitor(thread); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2210 | visitor.WalkStack(); |
Elliott Hughes | a2e54f6 | 2011-11-17 13:01:30 -0800 | [diff] [blame] | 2211 | return visitor.depth; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2212 | } |
| 2213 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2214 | JDWP::JdwpError Dbg::GetThreadFrameCount(JDWP::ObjectId thread_id, size_t* result) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2215 | ScopedObjectAccess soa(Thread::Current()); |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [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 | *result = 0; |
| 2219 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2220 | if (error != JDWP::ERR_NONE) { |
| 2221 | return error; |
| 2222 | } |
Elliott Hughes | f15f4a0 | 2013-01-09 10:09:38 -0800 | [diff] [blame] | 2223 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 2224 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 2225 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2226 | *result = GetStackDepth(thread); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2227 | return JDWP::ERR_NONE; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2228 | } |
| 2229 | |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 2230 | JDWP::JdwpError Dbg::GetThreadFrames(JDWP::ObjectId thread_id, size_t start_frame, |
| 2231 | size_t frame_count, JDWP::ExpandBuf* buf) { |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2232 | class GetFrameVisitor : public StackVisitor { |
| 2233 | public: |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2234 | GetFrameVisitor(Thread* thread, size_t start_frame_in, size_t frame_count_in, |
| 2235 | JDWP::ExpandBuf* buf_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2236 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2237 | : StackVisitor(thread, nullptr), depth_(0), |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2238 | 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] | 2239 | expandBufAdd4BE(buf_, frame_count_); |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2240 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2241 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2242 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2243 | // annotalysis. |
| 2244 | virtual bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2245 | if (GetMethod()->IsRuntimeMethod()) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 2246 | 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] | 2247 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2248 | if (depth_ >= start_frame_ + frame_count_) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2249 | return false; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2250 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2251 | if (depth_ >= start_frame_) { |
| 2252 | JDWP::FrameId frame_id(GetFrameId()); |
| 2253 | JDWP::JdwpLocation location; |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2254 | SetJdwpLocation(&location, GetMethod(), GetDexPc()); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2255 | VLOG(jdwp) << StringPrintf(" Frame %3zd: id=%3" PRIu64 " ", depth_, frame_id) << location; |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2256 | expandBufAdd8BE(buf_, frame_id); |
| 2257 | expandBufAddLocation(buf_, location); |
| 2258 | } |
| 2259 | ++depth_; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2260 | return true; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2261 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2262 | |
| 2263 | private: |
| 2264 | size_t depth_; |
| 2265 | const size_t start_frame_; |
| 2266 | const size_t frame_count_; |
| 2267 | JDWP::ExpandBuf* buf_; |
Elliott Hughes | 03181a8 | 2011-11-17 17:22:21 -0800 | [diff] [blame] | 2268 | }; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2269 | |
| 2270 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 2271 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2272 | JDWP::JdwpError error; |
| 2273 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2274 | if (error != JDWP::ERR_NONE) { |
| 2275 | return error; |
| 2276 | } |
Elliott Hughes | f15f4a0 | 2013-01-09 10:09:38 -0800 | [diff] [blame] | 2277 | if (!IsSuspendedForDebugger(soa, thread)) { |
| 2278 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 2279 | } |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2280 | GetFrameVisitor visitor(thread, start_frame, frame_count, buf); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2281 | visitor.WalkStack(); |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2282 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2283 | } |
| 2284 | |
| 2285 | JDWP::ObjectId Dbg::GetThreadSelfId() { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2286 | return GetThreadId(Thread::Current()); |
| 2287 | } |
| 2288 | |
| 2289 | JDWP::ObjectId Dbg::GetThreadId(Thread* thread) { |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 2290 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2291 | return gRegistry->Add(thread->GetPeer()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2292 | } |
| 2293 | |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 2294 | void Dbg::SuspendVM() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2295 | Runtime::Current()->GetThreadList()->SuspendAllForDebugger(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2296 | } |
| 2297 | |
| 2298 | void Dbg::ResumeVM() { |
Sebastien Hertz | 253fa55 | 2014-10-14 17:27:15 +0200 | [diff] [blame] | 2299 | Runtime::Current()->GetThreadList()->ResumeAllForDebugger(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2300 | } |
| 2301 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2302 | JDWP::JdwpError Dbg::SuspendThread(JDWP::ObjectId thread_id, bool request_suspension) { |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 2303 | Thread* self = Thread::Current(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2304 | ScopedLocalRef<jobject> peer(self->GetJniEnv(), nullptr); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2305 | { |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 2306 | ScopedObjectAccess soa(self); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2307 | JDWP::JdwpError error; |
| 2308 | peer.reset(soa.AddLocalReference<jobject>(gRegistry->Get<mirror::Object*>(thread_id, &error))); |
Elliott Hughes | 4e23531 | 2011-12-02 11:34:15 -0800 | [diff] [blame] | 2309 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2310 | if (peer.get() == nullptr) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2311 | return JDWP::ERR_THREAD_NOT_ALIVE; |
| 2312 | } |
Ian Rogers | 4ad5cd3 | 2014-11-11 23:08:07 -0800 | [diff] [blame] | 2313 | // Suspend thread to build stack trace. |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 2314 | bool timed_out; |
Brian Carlstrom | ba32de4 | 2014-08-27 23:43:46 -0700 | [diff] [blame] | 2315 | ThreadList* thread_list = Runtime::Current()->GetThreadList(); |
| 2316 | Thread* thread = thread_list->SuspendThreadByPeer(peer.get(), request_suspension, true, |
| 2317 | &timed_out); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2318 | if (thread != nullptr) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2319 | return JDWP::ERR_NONE; |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 2320 | } else if (timed_out) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2321 | return JDWP::ERR_INTERNAL; |
| 2322 | } else { |
| 2323 | return JDWP::ERR_THREAD_NOT_ALIVE; |
| 2324 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2325 | } |
| 2326 | |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2327 | void Dbg::ResumeThread(JDWP::ObjectId thread_id) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2328 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2329 | JDWP::JdwpError error; |
| 2330 | mirror::Object* peer = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 2331 | CHECK(peer != nullptr) << error; |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 2332 | Thread* thread; |
| 2333 | { |
| 2334 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
| 2335 | thread = Thread::FromManagedThread(soa, peer); |
| 2336 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2337 | if (thread == nullptr) { |
Elliott Hughes | 4e23531 | 2011-12-02 11:34:15 -0800 | [diff] [blame] | 2338 | LOG(WARNING) << "No such thread for resume: " << peer; |
| 2339 | return; |
| 2340 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2341 | bool needs_resume; |
| 2342 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2343 | MutexLock mu2(soa.Self(), *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2344 | needs_resume = thread->GetSuspendCount() > 0; |
| 2345 | } |
| 2346 | if (needs_resume) { |
Elliott Hughes | 546b986 | 2012-06-20 16:06:13 -0700 | [diff] [blame] | 2347 | Runtime::Current()->GetThreadList()->Resume(thread, true); |
| 2348 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2349 | } |
| 2350 | |
| 2351 | void Dbg::SuspendSelf() { |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 2352 | Runtime::Current()->GetThreadList()->SuspendSelfForDebugger(); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2353 | } |
| 2354 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2355 | struct GetThisVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2356 | GetThisVisitor(Thread* thread, Context* context, JDWP::FrameId frame_id_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2357 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 2358 | : StackVisitor(thread, context), this_object(nullptr), frame_id(frame_id_in) {} |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2359 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2360 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2361 | // annotalysis. |
| 2362 | virtual bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2363 | if (frame_id != GetFrameId()) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2364 | return true; // continue |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2365 | } else { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2366 | this_object = GetThisObject(); |
| 2367 | return false; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2368 | } |
Elliott Hughes | 86b0010 | 2011-12-05 17:54:26 -0800 | [diff] [blame] | 2369 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2370 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2371 | mirror::Object* this_object; |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2372 | JDWP::FrameId frame_id; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2373 | }; |
| 2374 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2375 | JDWP::JdwpError Dbg::GetThisObject(JDWP::ObjectId thread_id, JDWP::FrameId frame_id, |
| 2376 | JDWP::ObjectId* result) { |
| 2377 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 2378 | Thread* thread; |
| 2379 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2380 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2381 | JDWP::JdwpError error; |
| 2382 | thread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2383 | if (error != JDWP::ERR_NONE) { |
| 2384 | return error; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2385 | } |
Elliott Hughes | 9e0c175 | 2013-01-09 14:02:58 -0800 | [diff] [blame] | 2386 | if (!IsSuspendedForDebugger(soa, thread)) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2387 | return JDWP::ERR_THREAD_NOT_SUSPENDED; |
| 2388 | } |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2389 | } |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2390 | std::unique_ptr<Context> context(Context::Create()); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2391 | GetThisVisitor visitor(thread, context.get(), frame_id); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2392 | visitor.WalkStack(); |
Elliott Hughes | 6e9d22c | 2012-06-22 15:02:37 -0700 | [diff] [blame] | 2393 | *result = gRegistry->Add(visitor.this_object); |
| 2394 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2395 | } |
| 2396 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2397 | // Walks the stack until we find the frame with the given FrameId. |
| 2398 | class FindFrameVisitor FINAL : public StackVisitor { |
| 2399 | public: |
| 2400 | FindFrameVisitor(Thread* thread, Context* context, JDWP::FrameId frame_id) |
| 2401 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
| 2402 | : StackVisitor(thread, context), frame_id_(frame_id), error_(JDWP::ERR_INVALID_FRAMEID) {} |
Ian Rogers | ca19066 | 2012-06-26 15:45:57 -0700 | [diff] [blame] | 2403 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2404 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 2405 | // annotalysis. |
| 2406 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
| 2407 | if (GetFrameId() != frame_id_) { |
| 2408 | return true; // Not our frame, carry on. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2409 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2410 | mirror::ArtMethod* m = GetMethod(); |
| 2411 | if (m->IsNative()) { |
| 2412 | // We can't read/write local value from/into native method. |
| 2413 | error_ = JDWP::ERR_OPAQUE_FRAME; |
| 2414 | } else { |
| 2415 | // We found our frame. |
| 2416 | error_ = JDWP::ERR_NONE; |
| 2417 | } |
| 2418 | return false; |
| 2419 | } |
| 2420 | |
| 2421 | JDWP::JdwpError GetError() const { |
| 2422 | return error_; |
| 2423 | } |
| 2424 | |
| 2425 | private: |
| 2426 | const JDWP::FrameId frame_id_; |
| 2427 | JDWP::JdwpError error_; |
| 2428 | }; |
| 2429 | |
| 2430 | JDWP::JdwpError Dbg::GetLocalValues(JDWP::Request* request, JDWP::ExpandBuf* pReply) { |
| 2431 | JDWP::ObjectId thread_id = request->ReadThreadId(); |
| 2432 | JDWP::FrameId frame_id = request->ReadFrameId(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2433 | |
| 2434 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2435 | Thread* thread; |
| 2436 | { |
| 2437 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
| 2438 | JDWP::JdwpError error; |
| 2439 | thread = DecodeThread(soa, thread_id, &error); |
| 2440 | if (error != JDWP::ERR_NONE) { |
| 2441 | return error; |
| 2442 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2443 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2444 | // Find the frame with the given frame_id. |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2445 | std::unique_ptr<Context> context(Context::Create()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2446 | FindFrameVisitor visitor(thread, context.get(), frame_id); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2447 | visitor.WalkStack(); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2448 | if (visitor.GetError() != JDWP::ERR_NONE) { |
| 2449 | return visitor.GetError(); |
| 2450 | } |
| 2451 | |
| 2452 | // Read the values from visitor's context. |
| 2453 | int32_t slot_count = request->ReadSigned32("slot count"); |
| 2454 | expandBufAdd4BE(pReply, slot_count); /* "int values" */ |
| 2455 | for (int32_t i = 0; i < slot_count; ++i) { |
| 2456 | uint32_t slot = request->ReadUnsigned32("slot"); |
| 2457 | JDWP::JdwpTag reqSigByte = request->ReadTag(); |
| 2458 | |
| 2459 | VLOG(jdwp) << " --> slot " << slot << " " << reqSigByte; |
| 2460 | |
| 2461 | size_t width = Dbg::GetTagWidth(reqSigByte); |
Sebastien Hertz | 7d95565 | 2014-10-22 10:57:10 +0200 | [diff] [blame] | 2462 | uint8_t* ptr = expandBufAddSpace(pReply, width + 1); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2463 | JDWP::JdwpError error = Dbg::GetLocalValue(visitor, soa, slot, reqSigByte, ptr, width); |
| 2464 | if (error != JDWP::ERR_NONE) { |
| 2465 | return error; |
| 2466 | } |
| 2467 | } |
| 2468 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2469 | } |
| 2470 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2471 | JDWP::JdwpError Dbg::GetLocalValue(const StackVisitor& visitor, ScopedObjectAccessUnchecked& soa, |
| 2472 | int slot, JDWP::JdwpTag tag, uint8_t* buf, size_t width) { |
| 2473 | mirror::ArtMethod* m = visitor.GetMethod(); |
| 2474 | uint16_t reg = DemangleSlot(slot, m); |
| 2475 | // TODO: check that the tag is compatible with the actual type of the slot! |
| 2476 | // TODO: check slot is valid for this method or return INVALID_SLOT error. |
| 2477 | constexpr JDWP::JdwpError kFailureErrorCode = JDWP::ERR_ABSENT_INFORMATION; |
| 2478 | switch (tag) { |
| 2479 | case JDWP::JT_BOOLEAN: { |
| 2480 | CHECK_EQ(width, 1U); |
| 2481 | uint32_t intVal; |
| 2482 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2483 | VLOG(jdwp) << "get boolean local " << reg << " = " << intVal; |
| 2484 | JDWP::Set1(buf + 1, intVal != 0); |
| 2485 | } else { |
| 2486 | VLOG(jdwp) << "failed to get boolean local " << reg; |
| 2487 | return kFailureErrorCode; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2488 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2489 | break; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2490 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2491 | case JDWP::JT_BYTE: { |
| 2492 | CHECK_EQ(width, 1U); |
| 2493 | uint32_t intVal; |
| 2494 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2495 | VLOG(jdwp) << "get byte local " << reg << " = " << intVal; |
| 2496 | JDWP::Set1(buf + 1, intVal); |
| 2497 | } else { |
| 2498 | VLOG(jdwp) << "failed to get byte local " << reg; |
| 2499 | return kFailureErrorCode; |
| 2500 | } |
| 2501 | break; |
| 2502 | } |
| 2503 | case JDWP::JT_SHORT: |
| 2504 | case JDWP::JT_CHAR: { |
| 2505 | CHECK_EQ(width, 2U); |
| 2506 | uint32_t intVal; |
| 2507 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2508 | VLOG(jdwp) << "get short/char local " << reg << " = " << intVal; |
| 2509 | JDWP::Set2BE(buf + 1, intVal); |
| 2510 | } else { |
| 2511 | VLOG(jdwp) << "failed to get short/char local " << reg; |
| 2512 | return kFailureErrorCode; |
| 2513 | } |
| 2514 | break; |
| 2515 | } |
| 2516 | case JDWP::JT_INT: { |
| 2517 | CHECK_EQ(width, 4U); |
| 2518 | uint32_t intVal; |
| 2519 | if (visitor.GetVReg(m, reg, kIntVReg, &intVal)) { |
| 2520 | VLOG(jdwp) << "get int local " << reg << " = " << intVal; |
| 2521 | JDWP::Set4BE(buf + 1, intVal); |
| 2522 | } else { |
| 2523 | VLOG(jdwp) << "failed to get int local " << reg; |
| 2524 | return kFailureErrorCode; |
| 2525 | } |
| 2526 | break; |
| 2527 | } |
| 2528 | case JDWP::JT_FLOAT: { |
| 2529 | CHECK_EQ(width, 4U); |
| 2530 | uint32_t intVal; |
| 2531 | if (visitor.GetVReg(m, reg, kFloatVReg, &intVal)) { |
| 2532 | VLOG(jdwp) << "get float local " << reg << " = " << intVal; |
| 2533 | JDWP::Set4BE(buf + 1, intVal); |
| 2534 | } else { |
| 2535 | VLOG(jdwp) << "failed to get float local " << reg; |
| 2536 | return kFailureErrorCode; |
| 2537 | } |
| 2538 | break; |
| 2539 | } |
| 2540 | case JDWP::JT_ARRAY: |
| 2541 | case JDWP::JT_CLASS_LOADER: |
| 2542 | case JDWP::JT_CLASS_OBJECT: |
| 2543 | case JDWP::JT_OBJECT: |
| 2544 | case JDWP::JT_STRING: |
| 2545 | case JDWP::JT_THREAD: |
| 2546 | case JDWP::JT_THREAD_GROUP: { |
| 2547 | CHECK_EQ(width, sizeof(JDWP::ObjectId)); |
| 2548 | uint32_t intVal; |
| 2549 | if (visitor.GetVReg(m, reg, kReferenceVReg, &intVal)) { |
| 2550 | mirror::Object* o = reinterpret_cast<mirror::Object*>(intVal); |
| 2551 | VLOG(jdwp) << "get " << tag << " object local " << reg << " = " << o; |
| 2552 | if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(o)) { |
| 2553 | LOG(FATAL) << "Register " << reg << " expected to hold " << tag << " object: " << o; |
| 2554 | } |
| 2555 | tag = TagFromObject(soa, o); |
| 2556 | JDWP::SetObjectId(buf + 1, gRegistry->Add(o)); |
| 2557 | } else { |
| 2558 | VLOG(jdwp) << "failed to get " << tag << " object local " << reg; |
| 2559 | return kFailureErrorCode; |
| 2560 | } |
| 2561 | break; |
| 2562 | } |
| 2563 | case JDWP::JT_DOUBLE: { |
| 2564 | CHECK_EQ(width, 8U); |
| 2565 | uint64_t longVal; |
| 2566 | if (visitor.GetVRegPair(m, reg, kDoubleLoVReg, kDoubleHiVReg, &longVal)) { |
| 2567 | VLOG(jdwp) << "get double local " << reg << " = " << longVal; |
| 2568 | JDWP::Set8BE(buf + 1, longVal); |
| 2569 | } else { |
| 2570 | VLOG(jdwp) << "failed to get double local " << reg; |
| 2571 | return kFailureErrorCode; |
| 2572 | } |
| 2573 | break; |
| 2574 | } |
| 2575 | case JDWP::JT_LONG: { |
| 2576 | CHECK_EQ(width, 8U); |
| 2577 | uint64_t longVal; |
| 2578 | if (visitor.GetVRegPair(m, reg, kLongLoVReg, kLongHiVReg, &longVal)) { |
| 2579 | VLOG(jdwp) << "get long local " << reg << " = " << longVal; |
| 2580 | JDWP::Set8BE(buf + 1, longVal); |
| 2581 | } else { |
| 2582 | VLOG(jdwp) << "failed to get long local " << reg; |
| 2583 | return kFailureErrorCode; |
| 2584 | } |
| 2585 | break; |
| 2586 | } |
| 2587 | default: |
| 2588 | LOG(FATAL) << "Unknown tag " << tag; |
| 2589 | break; |
| 2590 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2591 | |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2592 | // Prepend tag, which may have been updated. |
| 2593 | JDWP::Set1(buf, tag); |
| 2594 | return JDWP::ERR_NONE; |
| 2595 | } |
| 2596 | |
| 2597 | JDWP::JdwpError Dbg::SetLocalValues(JDWP::Request* request) { |
| 2598 | JDWP::ObjectId thread_id = request->ReadThreadId(); |
| 2599 | JDWP::FrameId frame_id = request->ReadFrameId(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2600 | |
| 2601 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2602 | Thread* thread; |
| 2603 | { |
| 2604 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
| 2605 | JDWP::JdwpError error; |
| 2606 | thread = DecodeThread(soa, thread_id, &error); |
| 2607 | if (error != JDWP::ERR_NONE) { |
| 2608 | return error; |
| 2609 | } |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 2610 | } |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2611 | // Find the frame with the given frame_id. |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2612 | std::unique_ptr<Context> context(Context::Create()); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2613 | FindFrameVisitor visitor(thread, context.get(), frame_id); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2614 | visitor.WalkStack(); |
Sebastien Hertz | 8009f39 | 2014-09-01 17:07:11 +0200 | [diff] [blame] | 2615 | if (visitor.GetError() != JDWP::ERR_NONE) { |
| 2616 | return visitor.GetError(); |
| 2617 | } |
| 2618 | |
| 2619 | // Writes the values into visitor's context. |
| 2620 | int32_t slot_count = request->ReadSigned32("slot count"); |
| 2621 | for (int32_t i = 0; i < slot_count; ++i) { |
| 2622 | uint32_t slot = request->ReadUnsigned32("slot"); |
| 2623 | JDWP::JdwpTag sigByte = request->ReadTag(); |
| 2624 | size_t width = Dbg::GetTagWidth(sigByte); |
| 2625 | uint64_t value = request->ReadValue(width); |
| 2626 | |
| 2627 | VLOG(jdwp) << " --> slot " << slot << " " << sigByte << " " << value; |
| 2628 | JDWP::JdwpError error = Dbg::SetLocalValue(visitor, slot, sigByte, value, width); |
| 2629 | if (error != JDWP::ERR_NONE) { |
| 2630 | return error; |
| 2631 | } |
| 2632 | } |
| 2633 | return JDWP::ERR_NONE; |
| 2634 | } |
| 2635 | |
| 2636 | JDWP::JdwpError Dbg::SetLocalValue(StackVisitor& visitor, int slot, JDWP::JdwpTag tag, |
| 2637 | uint64_t value, size_t width) { |
| 2638 | mirror::ArtMethod* m = visitor.GetMethod(); |
| 2639 | uint16_t reg = DemangleSlot(slot, m); |
| 2640 | // TODO: check that the tag is compatible with the actual type of the slot! |
| 2641 | // TODO: check slot is valid for this method or return INVALID_SLOT error. |
| 2642 | constexpr JDWP::JdwpError kFailureErrorCode = JDWP::ERR_ABSENT_INFORMATION; |
| 2643 | switch (tag) { |
| 2644 | case JDWP::JT_BOOLEAN: |
| 2645 | case JDWP::JT_BYTE: |
| 2646 | CHECK_EQ(width, 1U); |
| 2647 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kIntVReg)) { |
| 2648 | VLOG(jdwp) << "failed to set boolean/byte local " << reg << " = " |
| 2649 | << static_cast<uint32_t>(value); |
| 2650 | return kFailureErrorCode; |
| 2651 | } |
| 2652 | break; |
| 2653 | case JDWP::JT_SHORT: |
| 2654 | case JDWP::JT_CHAR: |
| 2655 | CHECK_EQ(width, 2U); |
| 2656 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kIntVReg)) { |
| 2657 | VLOG(jdwp) << "failed to set short/char local " << reg << " = " |
| 2658 | << static_cast<uint32_t>(value); |
| 2659 | return kFailureErrorCode; |
| 2660 | } |
| 2661 | break; |
| 2662 | case JDWP::JT_INT: |
| 2663 | CHECK_EQ(width, 4U); |
| 2664 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kIntVReg)) { |
| 2665 | VLOG(jdwp) << "failed to set int local " << reg << " = " |
| 2666 | << static_cast<uint32_t>(value); |
| 2667 | return kFailureErrorCode; |
| 2668 | } |
| 2669 | break; |
| 2670 | case JDWP::JT_FLOAT: |
| 2671 | CHECK_EQ(width, 4U); |
| 2672 | if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(value), kFloatVReg)) { |
| 2673 | VLOG(jdwp) << "failed to set float local " << reg << " = " |
| 2674 | << static_cast<uint32_t>(value); |
| 2675 | return kFailureErrorCode; |
| 2676 | } |
| 2677 | break; |
| 2678 | case JDWP::JT_ARRAY: |
| 2679 | case JDWP::JT_CLASS_LOADER: |
| 2680 | case JDWP::JT_CLASS_OBJECT: |
| 2681 | case JDWP::JT_OBJECT: |
| 2682 | case JDWP::JT_STRING: |
| 2683 | case JDWP::JT_THREAD: |
| 2684 | case JDWP::JT_THREAD_GROUP: { |
| 2685 | CHECK_EQ(width, sizeof(JDWP::ObjectId)); |
| 2686 | JDWP::JdwpError error; |
| 2687 | mirror::Object* o = gRegistry->Get<mirror::Object*>(static_cast<JDWP::ObjectId>(value), |
| 2688 | &error); |
| 2689 | if (error != JDWP::ERR_NONE) { |
| 2690 | VLOG(jdwp) << tag << " object " << o << " is an invalid object"; |
| 2691 | return JDWP::ERR_INVALID_OBJECT; |
| 2692 | } else if (!visitor.SetVReg(m, reg, static_cast<uint32_t>(reinterpret_cast<uintptr_t>(o)), |
| 2693 | kReferenceVReg)) { |
| 2694 | VLOG(jdwp) << "failed to set " << tag << " object local " << reg << " = " << o; |
| 2695 | return kFailureErrorCode; |
| 2696 | } |
| 2697 | break; |
| 2698 | } |
| 2699 | case JDWP::JT_DOUBLE: { |
| 2700 | CHECK_EQ(width, 8U); |
| 2701 | if (!visitor.SetVRegPair(m, reg, value, kDoubleLoVReg, kDoubleHiVReg)) { |
| 2702 | VLOG(jdwp) << "failed to set double local " << reg << " = " << value; |
| 2703 | return kFailureErrorCode; |
| 2704 | } |
| 2705 | break; |
| 2706 | } |
| 2707 | case JDWP::JT_LONG: { |
| 2708 | CHECK_EQ(width, 8U); |
| 2709 | if (!visitor.SetVRegPair(m, reg, value, kLongLoVReg, kLongHiVReg)) { |
| 2710 | VLOG(jdwp) << "failed to set double local " << reg << " = " << value; |
| 2711 | return kFailureErrorCode; |
| 2712 | } |
| 2713 | break; |
| 2714 | } |
| 2715 | default: |
| 2716 | LOG(FATAL) << "Unknown tag " << tag; |
| 2717 | break; |
| 2718 | } |
| 2719 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2720 | } |
| 2721 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2722 | static void SetEventLocation(JDWP::EventLocation* location, mirror::ArtMethod* m, uint32_t dex_pc) |
| 2723 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2724 | DCHECK(location != nullptr); |
| 2725 | if (m == nullptr) { |
| 2726 | memset(location, 0, sizeof(*location)); |
| 2727 | } else { |
| 2728 | location->method = m; |
| 2729 | 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] | 2730 | } |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2731 | } |
| 2732 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2733 | 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] | 2734 | int event_flags, const JValue* return_value) { |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2735 | if (!IsDebuggerActive()) { |
| 2736 | return; |
| 2737 | } |
| 2738 | DCHECK(m != nullptr); |
| 2739 | DCHECK_EQ(m->IsStatic(), this_object == nullptr); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2740 | JDWP::EventLocation location; |
| 2741 | SetEventLocation(&location, m, dex_pc); |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2742 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2743 | gJdwpState->PostLocationEvent(&location, this_object, event_flags, return_value); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2744 | } |
| 2745 | |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2746 | void Dbg::PostFieldAccessEvent(mirror::ArtMethod* m, int dex_pc, |
| 2747 | mirror::Object* this_object, mirror::ArtField* f) { |
| 2748 | if (!IsDebuggerActive()) { |
| 2749 | return; |
| 2750 | } |
| 2751 | DCHECK(m != nullptr); |
| 2752 | DCHECK(f != nullptr); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2753 | JDWP::EventLocation location; |
| 2754 | SetEventLocation(&location, m, dex_pc); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2755 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2756 | gJdwpState->PostFieldEvent(&location, f, this_object, nullptr, false); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2757 | } |
| 2758 | |
| 2759 | void Dbg::PostFieldModificationEvent(mirror::ArtMethod* m, int dex_pc, |
| 2760 | mirror::Object* this_object, mirror::ArtField* f, |
| 2761 | const JValue* field_value) { |
| 2762 | if (!IsDebuggerActive()) { |
| 2763 | return; |
| 2764 | } |
| 2765 | DCHECK(m != nullptr); |
| 2766 | DCHECK(f != nullptr); |
| 2767 | DCHECK(field_value != nullptr); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2768 | JDWP::EventLocation location; |
| 2769 | SetEventLocation(&location, m, dex_pc); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2770 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2771 | gJdwpState->PostFieldEvent(&location, f, this_object, field_value, true); |
Sebastien Hertz | 3f52eaf | 2014-04-04 17:50:18 +0200 | [diff] [blame] | 2772 | } |
| 2773 | |
| 2774 | void Dbg::PostException(const ThrowLocation& throw_location, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2775 | mirror::ArtMethod* catch_method, |
Elliott Hughes | 64f574f | 2013-02-20 14:57:12 -0800 | [diff] [blame] | 2776 | uint32_t catch_dex_pc, mirror::Throwable* exception_object) { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2777 | if (!IsDebuggerActive()) { |
Ian Rogers | 0ad5bb8 | 2011-12-07 10:16:32 -0800 | [diff] [blame] | 2778 | return; |
| 2779 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2780 | JDWP::EventLocation exception_throw_location; |
| 2781 | SetEventLocation(&exception_throw_location, throw_location.GetMethod(), throw_location.GetDexPc()); |
| 2782 | JDWP::EventLocation exception_catch_location; |
| 2783 | SetEventLocation(&exception_catch_location, catch_method, catch_dex_pc); |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 2784 | |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2785 | gJdwpState->PostException(&exception_throw_location, exception_object, &exception_catch_location, |
| 2786 | throw_location.GetThis()); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2787 | } |
| 2788 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2789 | void Dbg::PostClassPrepare(mirror::Class* c) { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2790 | if (!IsDebuggerActive()) { |
Elliott Hughes | 4740cdf | 2011-12-07 14:07:12 -0800 | [diff] [blame] | 2791 | return; |
| 2792 | } |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 2793 | gJdwpState->PostClassPrepare(c); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 2794 | } |
| 2795 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2796 | void Dbg::UpdateDebugger(Thread* thread, mirror::Object* this_object, |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 2797 | mirror::ArtMethod* m, uint32_t dex_pc, |
| 2798 | int event_flags, const JValue* return_value) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2799 | if (!IsDebuggerActive() || dex_pc == static_cast<uint32_t>(-2) /* fake method exit */) { |
Elliott Hughes | 2aa2e39 | 2012-02-17 17:15:43 -0800 | [diff] [blame] | 2800 | return; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2801 | } |
| 2802 | |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2803 | if (IsBreakpoint(m, dex_pc)) { |
| 2804 | event_flags |= kBreakpoint; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2805 | } |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2806 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2807 | // If the debugger is single-stepping one of our threads, check to |
| 2808 | // see if we're that thread and we've reached a step point. |
| 2809 | const SingleStepControl* single_step_control = thread->GetSingleStepControl(); |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2810 | if (single_step_control != nullptr) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2811 | CHECK(!m->IsNative()); |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2812 | if (single_step_control->GetStepDepth() == JDWP::SD_INTO) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2813 | // Step into method calls. We break when the line number |
| 2814 | // or method pointer changes. If we're in SS_MIN mode, we |
| 2815 | // always stop. |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2816 | if (single_step_control->GetMethod() != m) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2817 | event_flags |= kSingleStep; |
| 2818 | VLOG(jdwp) << "SS new method"; |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2819 | } else if (single_step_control->GetStepSize() == JDWP::SS_MIN) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2820 | event_flags |= kSingleStep; |
| 2821 | VLOG(jdwp) << "SS new instruction"; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 2822 | } else if (single_step_control->ContainsDexPc(dex_pc)) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2823 | event_flags |= kSingleStep; |
| 2824 | VLOG(jdwp) << "SS new line"; |
| 2825 | } |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2826 | } else if (single_step_control->GetStepDepth() == JDWP::SD_OVER) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2827 | // Step over method calls. We break when the line number is |
| 2828 | // different and the frame depth is <= the original frame |
| 2829 | // depth. (We can't just compare on the method, because we |
| 2830 | // might get unrolled past it by an exception, and it's tricky |
| 2831 | // to identify recursion.) |
| 2832 | |
| 2833 | int stack_depth = GetStackDepth(thread); |
| 2834 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2835 | if (stack_depth < single_step_control->GetStackDepth()) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2836 | // Popped up one or more frames, always trigger. |
| 2837 | event_flags |= kSingleStep; |
| 2838 | VLOG(jdwp) << "SS method pop"; |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2839 | } else if (stack_depth == single_step_control->GetStackDepth()) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2840 | // Same depth, see if we moved. |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2841 | if (single_step_control->GetStepSize() == JDWP::SS_MIN) { |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2842 | event_flags |= kSingleStep; |
| 2843 | VLOG(jdwp) << "SS new instruction"; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 2844 | } else if (single_step_control->ContainsDexPc(dex_pc)) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 2845 | event_flags |= kSingleStep; |
| 2846 | VLOG(jdwp) << "SS new line"; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2847 | } |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2848 | } |
| 2849 | } else { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2850 | CHECK_EQ(single_step_control->GetStepDepth(), JDWP::SD_OUT); |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2851 | // Return from the current method. We break when the frame |
| 2852 | // depth pops up. |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2853 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2854 | // This differs from the "method exit" break in that it stops |
| 2855 | // with the PC at the next instruction in the returned-to |
| 2856 | // function, rather than the end of the returning function. |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 2857 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2858 | int stack_depth = GetStackDepth(thread); |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2859 | if (stack_depth < single_step_control->GetStackDepth()) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 2860 | event_flags |= kSingleStep; |
| 2861 | VLOG(jdwp) << "SS method pop"; |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2862 | } |
| 2863 | } |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2864 | } |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2865 | |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2866 | // If there's something interesting going on, see if it matches one |
| 2867 | // of the debugger filters. |
| 2868 | if (event_flags != 0) { |
Sebastien Hertz | 8379b22 | 2014-02-24 17:38:15 +0100 | [diff] [blame] | 2869 | Dbg::PostLocationEvent(m, dex_pc, this_object, event_flags, return_value); |
Elliott Hughes | 91bf6cd | 2012-02-14 17:27:48 -0800 | [diff] [blame] | 2870 | } |
| 2871 | } |
| 2872 | |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2873 | size_t* Dbg::GetReferenceCounterForEvent(uint32_t instrumentation_event) { |
| 2874 | switch (instrumentation_event) { |
| 2875 | case instrumentation::Instrumentation::kMethodEntered: |
| 2876 | return &method_enter_event_ref_count_; |
| 2877 | case instrumentation::Instrumentation::kMethodExited: |
| 2878 | return &method_exit_event_ref_count_; |
| 2879 | case instrumentation::Instrumentation::kDexPcMoved: |
| 2880 | return &dex_pc_change_event_ref_count_; |
| 2881 | case instrumentation::Instrumentation::kFieldRead: |
| 2882 | return &field_read_event_ref_count_; |
| 2883 | case instrumentation::Instrumentation::kFieldWritten: |
| 2884 | return &field_write_event_ref_count_; |
| 2885 | case instrumentation::Instrumentation::kExceptionCaught: |
| 2886 | return &exception_catch_event_ref_count_; |
| 2887 | default: |
| 2888 | return nullptr; |
| 2889 | } |
| 2890 | } |
| 2891 | |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2892 | // Process request while all mutator threads are suspended. |
| 2893 | void Dbg::ProcessDeoptimizationRequest(const DeoptimizationRequest& request) { |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 2894 | instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2895 | switch (request.GetKind()) { |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2896 | case DeoptimizationRequest::kNothing: |
| 2897 | LOG(WARNING) << "Ignoring empty deoptimization request."; |
| 2898 | break; |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2899 | case DeoptimizationRequest::kRegisterForEvent: |
| 2900 | VLOG(jdwp) << StringPrintf("Add debugger as listener for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2901 | request.InstrumentationEvent()); |
| 2902 | instrumentation->AddListener(&gDebugInstrumentationListener, request.InstrumentationEvent()); |
| 2903 | instrumentation_events_ |= request.InstrumentationEvent(); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2904 | break; |
| 2905 | case DeoptimizationRequest::kUnregisterForEvent: |
| 2906 | VLOG(jdwp) << StringPrintf("Remove debugger as listener for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2907 | request.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2908 | instrumentation->RemoveListener(&gDebugInstrumentationListener, |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2909 | request.InstrumentationEvent()); |
| 2910 | instrumentation_events_ &= ~request.InstrumentationEvent(); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2911 | break; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2912 | case DeoptimizationRequest::kFullDeoptimization: |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2913 | VLOG(jdwp) << "Deoptimize the world ..."; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2914 | instrumentation->DeoptimizeEverything(); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2915 | VLOG(jdwp) << "Deoptimize the world DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2916 | break; |
| 2917 | case DeoptimizationRequest::kFullUndeoptimization: |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2918 | VLOG(jdwp) << "Undeoptimize the world ..."; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2919 | instrumentation->UndeoptimizeEverything(); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2920 | VLOG(jdwp) << "Undeoptimize the world DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2921 | break; |
| 2922 | case DeoptimizationRequest::kSelectiveDeoptimization: |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2923 | VLOG(jdwp) << "Deoptimize method " << PrettyMethod(request.Method()) << " ..."; |
| 2924 | instrumentation->Deoptimize(request.Method()); |
| 2925 | VLOG(jdwp) << "Deoptimize method " << PrettyMethod(request.Method()) << " DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2926 | break; |
| 2927 | case DeoptimizationRequest::kSelectiveUndeoptimization: |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2928 | VLOG(jdwp) << "Undeoptimize method " << PrettyMethod(request.Method()) << " ..."; |
| 2929 | instrumentation->Undeoptimize(request.Method()); |
| 2930 | VLOG(jdwp) << "Undeoptimize method " << PrettyMethod(request.Method()) << " DONE"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2931 | break; |
| 2932 | default: |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2933 | LOG(FATAL) << "Unsupported deoptimization request kind " << request.GetKind(); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2934 | break; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 2935 | } |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 2936 | } |
| 2937 | |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2938 | void Dbg::DelayFullUndeoptimization() { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 2939 | if (RequiresDeoptimization()) { |
| 2940 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
| 2941 | ++delayed_full_undeoptimization_count_; |
| 2942 | DCHECK_LE(delayed_full_undeoptimization_count_, full_deoptimization_event_count_); |
| 2943 | } |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2944 | } |
| 2945 | |
| 2946 | void Dbg::ProcessDelayedFullUndeoptimizations() { |
| 2947 | // TODO: avoid taking the lock twice (once here and once in ManageDeoptimization). |
| 2948 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 2949 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2950 | while (delayed_full_undeoptimization_count_ > 0) { |
| 2951 | DeoptimizationRequest req; |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2952 | req.SetKind(DeoptimizationRequest::kFullUndeoptimization); |
| 2953 | req.SetMethod(nullptr); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2954 | RequestDeoptimizationLocked(req); |
| 2955 | --delayed_full_undeoptimization_count_; |
| 2956 | } |
| 2957 | } |
| 2958 | ManageDeoptimization(); |
| 2959 | } |
| 2960 | |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2961 | void Dbg::RequestDeoptimization(const DeoptimizationRequest& req) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2962 | if (req.GetKind() == DeoptimizationRequest::kNothing) { |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2963 | // Nothing to do. |
| 2964 | return; |
| 2965 | } |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 2966 | MutexLock mu(Thread::Current(), *Locks::deoptimization_lock_); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 2967 | RequestDeoptimizationLocked(req); |
| 2968 | } |
| 2969 | |
| 2970 | void Dbg::RequestDeoptimizationLocked(const DeoptimizationRequest& req) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2971 | switch (req.GetKind()) { |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2972 | case DeoptimizationRequest::kRegisterForEvent: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2973 | DCHECK_NE(req.InstrumentationEvent(), 0u); |
| 2974 | size_t* counter = GetReferenceCounterForEvent(req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2975 | CHECK(counter != nullptr) << StringPrintf("No counter for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2976 | req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2977 | if (*counter == 0) { |
Sebastien Hertz | 7d2ae43 | 2014-05-15 11:26:34 +0200 | [diff] [blame] | 2978 | 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] | 2979 | deoptimization_requests_.size(), req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2980 | deoptimization_requests_.push_back(req); |
| 2981 | } |
| 2982 | *counter = *counter + 1; |
| 2983 | break; |
| 2984 | } |
| 2985 | case DeoptimizationRequest::kUnregisterForEvent: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2986 | DCHECK_NE(req.InstrumentationEvent(), 0u); |
| 2987 | size_t* counter = GetReferenceCounterForEvent(req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2988 | CHECK(counter != nullptr) << StringPrintf("No counter for instrumentation event 0x%x", |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2989 | req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2990 | *counter = *counter - 1; |
| 2991 | if (*counter == 0) { |
Sebastien Hertz | 7d2ae43 | 2014-05-15 11:26:34 +0200 | [diff] [blame] | 2992 | 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] | 2993 | deoptimization_requests_.size(), req.InstrumentationEvent()); |
Sebastien Hertz | 42cd43f | 2014-05-13 14:15:41 +0200 | [diff] [blame] | 2994 | deoptimization_requests_.push_back(req); |
| 2995 | } |
| 2996 | break; |
| 2997 | } |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 2998 | case DeoptimizationRequest::kFullDeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 2999 | DCHECK(req.Method() == nullptr); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3000 | if (full_deoptimization_event_count_ == 0) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3001 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
| 3002 | << " for full deoptimization"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3003 | deoptimization_requests_.push_back(req); |
| 3004 | } |
| 3005 | ++full_deoptimization_event_count_; |
| 3006 | break; |
| 3007 | } |
| 3008 | case DeoptimizationRequest::kFullUndeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3009 | DCHECK(req.Method() == nullptr); |
Sebastien Hertz | e713d93 | 2014-05-15 10:48:53 +0200 | [diff] [blame] | 3010 | DCHECK_GT(full_deoptimization_event_count_, 0U); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3011 | --full_deoptimization_event_count_; |
| 3012 | if (full_deoptimization_event_count_ == 0) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3013 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
| 3014 | << " for full undeoptimization"; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3015 | deoptimization_requests_.push_back(req); |
| 3016 | } |
| 3017 | break; |
| 3018 | } |
| 3019 | case DeoptimizationRequest::kSelectiveDeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3020 | DCHECK(req.Method() != nullptr); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3021 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3022 | << " for deoptimization of " << PrettyMethod(req.Method()); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3023 | deoptimization_requests_.push_back(req); |
| 3024 | break; |
| 3025 | } |
| 3026 | case DeoptimizationRequest::kSelectiveUndeoptimization: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3027 | DCHECK(req.Method() != nullptr); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3028 | VLOG(jdwp) << "Queue request #" << deoptimization_requests_.size() |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3029 | << " for undeoptimization of " << PrettyMethod(req.Method()); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3030 | deoptimization_requests_.push_back(req); |
| 3031 | break; |
| 3032 | } |
| 3033 | default: { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3034 | LOG(FATAL) << "Unknown deoptimization request kind " << req.GetKind(); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3035 | break; |
| 3036 | } |
| 3037 | } |
| 3038 | } |
| 3039 | |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3040 | void Dbg::ManageDeoptimization() { |
| 3041 | Thread* const self = Thread::Current(); |
| 3042 | { |
| 3043 | // Avoid suspend/resume if there is no pending request. |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 3044 | MutexLock mu(self, *Locks::deoptimization_lock_); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3045 | if (deoptimization_requests_.empty()) { |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3046 | return; |
| 3047 | } |
| 3048 | } |
| 3049 | CHECK_EQ(self->GetState(), kRunnable); |
| 3050 | self->TransitionFromRunnableToSuspended(kWaitingForDeoptimization); |
| 3051 | // We need to suspend mutator threads first. |
| 3052 | Runtime* const runtime = Runtime::Current(); |
| 3053 | runtime->GetThreadList()->SuspendAll(); |
| 3054 | const ThreadState old_state = self->SetStateUnsafe(kRunnable); |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3055 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 3056 | MutexLock mu(self, *Locks::deoptimization_lock_); |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3057 | size_t req_index = 0; |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3058 | for (DeoptimizationRequest& request : deoptimization_requests_) { |
Sebastien Hertz | 7ec2f1c | 2014-03-27 20:06:47 +0100 | [diff] [blame] | 3059 | VLOG(jdwp) << "Process deoptimization request #" << req_index++; |
Sebastien Hertz | 4d25df3 | 2014-03-21 17:44:46 +0100 | [diff] [blame] | 3060 | ProcessDeoptimizationRequest(request); |
| 3061 | } |
| 3062 | deoptimization_requests_.clear(); |
| 3063 | } |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3064 | CHECK_EQ(self->SetStateUnsafe(old_state), kRunnable); |
| 3065 | runtime->GetThreadList()->ResumeAll(); |
| 3066 | self->TransitionFromSuspendedToRunnable(); |
| 3067 | } |
| 3068 | |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3069 | static bool IsMethodPossiblyInlined(Thread* self, mirror::ArtMethod* m) |
| 3070 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3071 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3072 | if (code_item == nullptr) { |
| 3073 | // TODO We should not be asked to watch location in a native or abstract method so the code item |
| 3074 | // should never be null. We could just check we never encounter this case. |
| 3075 | return false; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3076 | } |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3077 | // Note: method verifier may cause thread suspension. |
| 3078 | self->AssertThreadSuspensionIsAllowable(); |
Hiroshi Yamauchi | dc37617 | 2014-08-22 11:13:12 -0700 | [diff] [blame] | 3079 | StackHandleScope<3> hs(self); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3080 | mirror::Class* declaring_class = m->GetDeclaringClass(); |
| 3081 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(declaring_class->GetDexCache())); |
| 3082 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(declaring_class->GetClassLoader())); |
Hiroshi Yamauchi | dc37617 | 2014-08-22 11:13:12 -0700 | [diff] [blame] | 3083 | Handle<mirror::ArtMethod> method(hs.NewHandle(m)); |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 3084 | verifier::MethodVerifier verifier(self, dex_cache->GetDexFile(), dex_cache, class_loader, |
Hiroshi Yamauchi | dc37617 | 2014-08-22 11:13:12 -0700 | [diff] [blame] | 3085 | &m->GetClassDef(), code_item, m->GetDexMethodIndex(), method, |
Mathieu Chartier | 4306ef8 | 2014-12-19 18:41:47 -0800 | [diff] [blame] | 3086 | m->GetAccessFlags(), false, true, false, true); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3087 | // Note: we don't need to verify the method. |
| 3088 | return InlineMethodAnalyser::AnalyseMethodCode(&verifier, nullptr); |
| 3089 | } |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3090 | |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3091 | static const Breakpoint* FindFirstBreakpointForMethod(mirror::ArtMethod* m) |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 3092 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, Locks::breakpoint_lock_) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3093 | for (Breakpoint& breakpoint : gBreakpoints) { |
| 3094 | if (breakpoint.Method() == m) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3095 | return &breakpoint; |
| 3096 | } |
| 3097 | } |
| 3098 | return nullptr; |
| 3099 | } |
| 3100 | |
| 3101 | // Sanity checks all existing breakpoints on the same method. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3102 | static void SanityCheckExistingBreakpoints(mirror::ArtMethod* m, |
| 3103 | DeoptimizationRequest::Kind deoptimization_kind) |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 3104 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, Locks::breakpoint_lock_) { |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3105 | for (const Breakpoint& breakpoint : gBreakpoints) { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3106 | if (breakpoint.Method() == m) { |
| 3107 | CHECK_EQ(deoptimization_kind, breakpoint.GetDeoptimizationKind()); |
| 3108 | } |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3109 | } |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3110 | instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 3111 | if (deoptimization_kind == DeoptimizationRequest::kFullDeoptimization) { |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3112 | // We should have deoptimized everything but not "selectively" deoptimized this method. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3113 | CHECK(instrumentation->AreAllMethodsDeoptimized()); |
| 3114 | CHECK(!instrumentation->IsDeoptimized(m)); |
| 3115 | } else if (deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization) { |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3116 | // We should have "selectively" deoptimized this method. |
| 3117 | // Note: while we have not deoptimized everything for this method, we may have done it for |
| 3118 | // another event. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3119 | CHECK(instrumentation->IsDeoptimized(m)); |
| 3120 | } else { |
| 3121 | // This method does not require deoptimization. |
| 3122 | CHECK_EQ(deoptimization_kind, DeoptimizationRequest::kNothing); |
| 3123 | CHECK(!instrumentation->IsDeoptimized(m)); |
| 3124 | } |
| 3125 | } |
| 3126 | |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3127 | // Returns the deoptimization kind required to set a breakpoint in a method. |
| 3128 | // If a breakpoint has already been set, we also return the first breakpoint |
| 3129 | // through the given 'existing_brkpt' pointer. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3130 | static DeoptimizationRequest::Kind GetRequiredDeoptimizationKind(Thread* self, |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3131 | mirror::ArtMethod* m, |
| 3132 | const Breakpoint** existing_brkpt) |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3133 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 3134 | if (!Dbg::RequiresDeoptimization()) { |
| 3135 | // We already run in interpreter-only mode so we don't need to deoptimize anything. |
| 3136 | VLOG(jdwp) << "No need for deoptimization when fully running with interpreter for method " |
| 3137 | << PrettyMethod(m); |
| 3138 | return DeoptimizationRequest::kNothing; |
| 3139 | } |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3140 | const Breakpoint* first_breakpoint; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3141 | { |
| 3142 | ReaderMutexLock mu(self, *Locks::breakpoint_lock_); |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3143 | first_breakpoint = FindFirstBreakpointForMethod(m); |
| 3144 | *existing_brkpt = first_breakpoint; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3145 | } |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3146 | |
| 3147 | if (first_breakpoint == nullptr) { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3148 | // There is no breakpoint on this method yet: we need to deoptimize. If this method may be |
| 3149 | // inlined, we deoptimize everything; otherwise we deoptimize only this method. |
| 3150 | // Note: IsMethodPossiblyInlined goes into the method verifier and may cause thread suspension. |
| 3151 | // Therefore we must not hold any lock when we call it. |
| 3152 | bool need_full_deoptimization = IsMethodPossiblyInlined(self, m); |
| 3153 | if (need_full_deoptimization) { |
| 3154 | VLOG(jdwp) << "Need full deoptimization because of possible inlining of method " |
| 3155 | << PrettyMethod(m); |
| 3156 | return DeoptimizationRequest::kFullDeoptimization; |
| 3157 | } else { |
| 3158 | // We don't need to deoptimize if the method has not been compiled. |
| 3159 | ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| 3160 | const bool is_compiled = class_linker->GetOatMethodQuickCodeFor(m) != nullptr; |
| 3161 | if (is_compiled) { |
Sebastien Hertz | 6963e44 | 2014-11-26 22:11:27 +0100 | [diff] [blame] | 3162 | // If the method may be called through its direct code pointer (without loading |
| 3163 | // its updated entrypoint), we need full deoptimization to not miss the breakpoint. |
| 3164 | if (class_linker->MayBeCalledWithDirectCodePointer(m)) { |
| 3165 | VLOG(jdwp) << "Need full deoptimization because of possible direct code call " |
| 3166 | << "into image for compiled method " << PrettyMethod(m); |
| 3167 | return DeoptimizationRequest::kFullDeoptimization; |
| 3168 | } else { |
| 3169 | VLOG(jdwp) << "Need selective deoptimization for compiled method " << PrettyMethod(m); |
| 3170 | return DeoptimizationRequest::kSelectiveDeoptimization; |
| 3171 | } |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3172 | } else { |
| 3173 | // Method is not compiled: we don't need to deoptimize. |
| 3174 | VLOG(jdwp) << "No need for deoptimization for non-compiled method " << PrettyMethod(m); |
| 3175 | return DeoptimizationRequest::kNothing; |
| 3176 | } |
| 3177 | } |
| 3178 | } else { |
| 3179 | // There is at least one breakpoint for this method: we don't need to deoptimize. |
| 3180 | // Let's check that all breakpoints are configured the same way for deoptimization. |
| 3181 | VLOG(jdwp) << "Breakpoint already set: no deoptimization is required"; |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3182 | DeoptimizationRequest::Kind deoptimization_kind = first_breakpoint->GetDeoptimizationKind(); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3183 | if (kIsDebugBuild) { |
| 3184 | ReaderMutexLock mu(self, *Locks::breakpoint_lock_); |
| 3185 | SanityCheckExistingBreakpoints(m, deoptimization_kind); |
| 3186 | } |
| 3187 | return DeoptimizationRequest::kNothing; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3188 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3189 | } |
| 3190 | |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3191 | // Installs a breakpoint at the specified location. Also indicates through the deoptimization |
| 3192 | // request if we need to deoptimize. |
| 3193 | void Dbg::WatchLocation(const JDWP::JdwpLocation* location, DeoptimizationRequest* req) { |
| 3194 | Thread* const self = Thread::Current(); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3195 | mirror::ArtMethod* m = FromMethodId(location->method_id); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3196 | DCHECK(m != nullptr) << "No method for method id " << location->method_id; |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3197 | |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3198 | const Breakpoint* existing_breakpoint = nullptr; |
| 3199 | const DeoptimizationRequest::Kind deoptimization_kind = |
| 3200 | GetRequiredDeoptimizationKind(self, m, &existing_breakpoint); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3201 | req->SetKind(deoptimization_kind); |
| 3202 | if (deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization) { |
| 3203 | req->SetMethod(m); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3204 | } else { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3205 | CHECK(deoptimization_kind == DeoptimizationRequest::kNothing || |
| 3206 | deoptimization_kind == DeoptimizationRequest::kFullDeoptimization); |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3207 | req->SetMethod(nullptr); |
Sebastien Hertz | 138dbfc | 2013-12-04 18:15:25 +0100 | [diff] [blame] | 3208 | } |
| 3209 | |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3210 | { |
| 3211 | WriterMutexLock mu(self, *Locks::breakpoint_lock_); |
Sebastien Hertz | abe93e0 | 2014-12-17 16:35:50 +0100 | [diff] [blame] | 3212 | // If there is at least one existing breakpoint on the same method, the new breakpoint |
| 3213 | // must have the same deoptimization kind than the existing breakpoint(s). |
| 3214 | DeoptimizationRequest::Kind breakpoint_deoptimization_kind; |
| 3215 | if (existing_breakpoint != nullptr) { |
| 3216 | breakpoint_deoptimization_kind = existing_breakpoint->GetDeoptimizationKind(); |
| 3217 | } else { |
| 3218 | breakpoint_deoptimization_kind = deoptimization_kind; |
| 3219 | } |
| 3220 | gBreakpoints.push_back(Breakpoint(m, location->dex_pc, breakpoint_deoptimization_kind)); |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3221 | VLOG(jdwp) << "Set breakpoint #" << (gBreakpoints.size() - 1) << ": " |
| 3222 | << gBreakpoints[gBreakpoints.size() - 1]; |
| 3223 | } |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3224 | } |
| 3225 | |
| 3226 | // Uninstalls a breakpoint at the specified location. Also indicates through the deoptimization |
| 3227 | // request if we need to undeoptimize. |
| 3228 | void Dbg::UnwatchLocation(const JDWP::JdwpLocation* location, DeoptimizationRequest* req) { |
Sebastien Hertz | ed2be17 | 2014-08-19 15:33:43 +0200 | [diff] [blame] | 3229 | WriterMutexLock mu(Thread::Current(), *Locks::breakpoint_lock_); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3230 | mirror::ArtMethod* m = FromMethodId(location->method_id); |
| 3231 | DCHECK(m != nullptr) << "No method for method id " << location->method_id; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3232 | DeoptimizationRequest::Kind deoptimization_kind = DeoptimizationRequest::kNothing; |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3233 | for (size_t i = 0, e = gBreakpoints.size(); i < e; ++i) { |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3234 | if (gBreakpoints[i].DexPc() == location->dex_pc && gBreakpoints[i].Method() == m) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3235 | VLOG(jdwp) << "Removed breakpoint #" << i << ": " << gBreakpoints[i]; |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3236 | deoptimization_kind = gBreakpoints[i].GetDeoptimizationKind(); |
| 3237 | DCHECK_EQ(deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization, |
| 3238 | Runtime::Current()->GetInstrumentation()->IsDeoptimized(m)); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3239 | gBreakpoints.erase(gBreakpoints.begin() + i); |
| 3240 | break; |
| 3241 | } |
| 3242 | } |
| 3243 | const Breakpoint* const existing_breakpoint = FindFirstBreakpointForMethod(m); |
| 3244 | if (existing_breakpoint == nullptr) { |
| 3245 | // There is no more breakpoint on this method: we need to undeoptimize. |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3246 | if (deoptimization_kind == DeoptimizationRequest::kFullDeoptimization) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3247 | // This method required full deoptimization: we need to undeoptimize everything. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3248 | req->SetKind(DeoptimizationRequest::kFullUndeoptimization); |
| 3249 | req->SetMethod(nullptr); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3250 | } else if (deoptimization_kind == DeoptimizationRequest::kSelectiveDeoptimization) { |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3251 | // This method required selective deoptimization: we need to undeoptimize only that method. |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 3252 | req->SetKind(DeoptimizationRequest::kSelectiveUndeoptimization); |
| 3253 | req->SetMethod(m); |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3254 | } else { |
| 3255 | // This method had no need for deoptimization: do nothing. |
| 3256 | CHECK_EQ(deoptimization_kind, DeoptimizationRequest::kNothing); |
| 3257 | req->SetKind(DeoptimizationRequest::kNothing); |
| 3258 | req->SetMethod(nullptr); |
Sebastien Hertz | a76a6d4 | 2014-03-20 16:40:17 +0100 | [diff] [blame] | 3259 | } |
| 3260 | } else { |
| 3261 | // 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] | 3262 | req->SetKind(DeoptimizationRequest::kNothing); |
| 3263 | req->SetMethod(nullptr); |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3264 | if (kIsDebugBuild) { |
Sebastien Hertz | f392879 | 2014-11-17 19:00:37 +0100 | [diff] [blame] | 3265 | SanityCheckExistingBreakpoints(m, deoptimization_kind); |
Sebastien Hertz | 4d1e9ab | 2014-09-18 16:03:34 +0200 | [diff] [blame] | 3266 | } |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3267 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3268 | } |
| 3269 | |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3270 | // Scoped utility class to suspend a thread so that we may do tasks such as walk its stack. Doesn't |
| 3271 | // cause suspension if the thread is the current thread. |
| 3272 | class ScopedThreadSuspension { |
| 3273 | public: |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 3274 | ScopedThreadSuspension(Thread* self, JDWP::ObjectId thread_id) |
Sebastien Hertz | 52d131d | 2014-03-13 16:17:40 +0100 | [diff] [blame] | 3275 | LOCKS_EXCLUDED(Locks::thread_list_lock_) |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 3276 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) : |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 3277 | thread_(nullptr), |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3278 | error_(JDWP::ERR_NONE), |
| 3279 | self_suspend_(false), |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 3280 | other_suspend_(false) { |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3281 | ScopedObjectAccessUnchecked soa(self); |
| 3282 | { |
| 3283 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3284 | thread_ = DecodeThread(soa, thread_id, &error_); |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3285 | } |
| 3286 | if (error_ == JDWP::ERR_NONE) { |
| 3287 | if (thread_ == soa.Self()) { |
| 3288 | self_suspend_ = true; |
| 3289 | } else { |
| 3290 | soa.Self()->TransitionFromRunnableToSuspended(kWaitingForDebuggerSuspension); |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 3291 | jobject thread_peer = Dbg::GetObjectRegistry()->GetJObject(thread_id); |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3292 | bool timed_out; |
Ian Rogers | 4ad5cd3 | 2014-11-11 23:08:07 -0800 | [diff] [blame] | 3293 | ThreadList* thread_list = Runtime::Current()->GetThreadList(); |
| 3294 | Thread* suspended_thread = thread_list->SuspendThreadByPeer(thread_peer, true, true, |
| 3295 | &timed_out); |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3296 | CHECK_EQ(soa.Self()->TransitionFromSuspendedToRunnable(), kWaitingForDebuggerSuspension); |
Ian Rogers | f3d874c | 2014-07-17 18:52:42 -0700 | [diff] [blame] | 3297 | if (suspended_thread == nullptr) { |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3298 | // Thread terminated from under us while suspending. |
| 3299 | error_ = JDWP::ERR_INVALID_THREAD; |
| 3300 | } else { |
| 3301 | CHECK_EQ(suspended_thread, thread_); |
| 3302 | other_suspend_ = true; |
| 3303 | } |
| 3304 | } |
| 3305 | } |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3306 | } |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3307 | |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3308 | Thread* GetThread() const { |
| 3309 | return thread_; |
| 3310 | } |
| 3311 | |
| 3312 | JDWP::JdwpError GetError() const { |
| 3313 | return error_; |
| 3314 | } |
| 3315 | |
| 3316 | ~ScopedThreadSuspension() { |
| 3317 | if (other_suspend_) { |
| 3318 | Runtime::Current()->GetThreadList()->Resume(thread_, true); |
| 3319 | } |
| 3320 | } |
| 3321 | |
| 3322 | private: |
| 3323 | Thread* thread_; |
| 3324 | JDWP::JdwpError error_; |
| 3325 | bool self_suspend_; |
| 3326 | bool other_suspend_; |
| 3327 | }; |
| 3328 | |
| 3329 | JDWP::JdwpError Dbg::ConfigureStep(JDWP::ObjectId thread_id, JDWP::JdwpStepSize step_size, |
| 3330 | JDWP::JdwpStepDepth step_depth) { |
| 3331 | Thread* self = Thread::Current(); |
| 3332 | ScopedThreadSuspension sts(self, thread_id); |
| 3333 | if (sts.GetError() != JDWP::ERR_NONE) { |
| 3334 | return sts.GetError(); |
| 3335 | } |
| 3336 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3337 | // Work out what ArtMethod* we're in, the current line number, and how deep the stack currently |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3338 | // is for step-out. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3339 | struct SingleStepStackVisitor : public StackVisitor { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3340 | explicit SingleStepStackVisitor(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
| 3341 | : StackVisitor(thread, nullptr), stack_depth(0), method(nullptr), line_number(-1) { |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3342 | } |
Ian Rogers | ca19066 | 2012-06-26 15:45:57 -0700 | [diff] [blame] | 3343 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3344 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 3345 | // annotalysis. |
| 3346 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3347 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3348 | if (!m->IsRuntimeMethod()) { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3349 | ++stack_depth; |
| 3350 | if (method == nullptr) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3351 | mirror::DexCache* dex_cache = m->GetDeclaringClass()->GetDexCache(); |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3352 | method = m; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3353 | if (dex_cache != nullptr) { |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 3354 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3355 | line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3356 | } |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3357 | } |
| 3358 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 3359 | return true; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3360 | } |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3361 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3362 | int stack_depth; |
| 3363 | mirror::ArtMethod* method; |
| 3364 | int32_t line_number; |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3365 | }; |
Jeff Hao | 449db33 | 2013-04-12 18:30:52 -0700 | [diff] [blame] | 3366 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3367 | Thread* const thread = sts.GetThread(); |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3368 | SingleStepStackVisitor visitor(thread); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3369 | visitor.WalkStack(); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3370 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3371 | // Find the dex_pc values that correspond to the current line, for line-based single-stepping. |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3372 | struct DebugCallbackContext { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3373 | explicit DebugCallbackContext(SingleStepControl* single_step_control_cb, |
| 3374 | int32_t line_number_cb, const DexFile::CodeItem* code_item) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3375 | : single_step_control_(single_step_control_cb), line_number_(line_number_cb), |
| 3376 | code_item_(code_item), last_pc_valid(false), last_pc(0) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3377 | } |
| 3378 | |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3379 | 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] | 3380 | DebugCallbackContext* context = reinterpret_cast<DebugCallbackContext*>(raw_context); |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 3381 | if (static_cast<int32_t>(line_number_cb) == context->line_number_) { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3382 | if (!context->last_pc_valid) { |
| 3383 | // Everything from this address until the next line change is ours. |
| 3384 | context->last_pc = address; |
| 3385 | context->last_pc_valid = true; |
| 3386 | } |
| 3387 | // Otherwise, if we're already in a valid range for this line, |
| 3388 | // just keep going (shouldn't really happen)... |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3389 | } else if (context->last_pc_valid) { // and the line number is new |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3390 | // Add everything from the last entry up until here to the set |
| 3391 | for (uint32_t dex_pc = context->last_pc; dex_pc < address; ++dex_pc) { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3392 | context->single_step_control_->AddDexPc(dex_pc); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3393 | } |
| 3394 | context->last_pc_valid = false; |
| 3395 | } |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3396 | return false; // There may be multiple entries for any given line. |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3397 | } |
| 3398 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3399 | ~DebugCallbackContext() { |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3400 | // If the line number was the last in the position table... |
| 3401 | if (last_pc_valid) { |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3402 | size_t end = code_item_->insns_size_in_code_units_; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3403 | for (uint32_t dex_pc = last_pc; dex_pc < end; ++dex_pc) { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3404 | single_step_control_->AddDexPc(dex_pc); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3405 | } |
| 3406 | } |
| 3407 | } |
| 3408 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3409 | SingleStepControl* const single_step_control_; |
| 3410 | const int32_t line_number_; |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3411 | const DexFile::CodeItem* const code_item_; |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3412 | bool last_pc_valid; |
| 3413 | uint32_t last_pc; |
| 3414 | }; |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3415 | |
| 3416 | // Allocate single step. |
| 3417 | SingleStepControl* single_step_control = new SingleStepControl(step_size, step_depth, |
| 3418 | visitor.stack_depth, |
| 3419 | visitor.method); |
| 3420 | CHECK(single_step_control != nullptr) << "Failed to allocate SingleStepControl"; |
| 3421 | mirror::ArtMethod* m = single_step_control->GetMethod(); |
| 3422 | const int32_t line_number = visitor.line_number; |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3423 | if (!m->IsNative()) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3424 | const DexFile::CodeItem* const code_item = m->GetCodeItem(); |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3425 | DebugCallbackContext context(single_step_control, line_number, code_item); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3426 | m->GetDexFile()->DecodeDebugInfo(code_item, m->IsStatic(), m->GetDexMethodIndex(), |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3427 | DebugCallbackContext::Callback, nullptr, &context); |
Elliott Hughes | 3e2e1a2 | 2012-02-21 11:33:41 -0800 | [diff] [blame] | 3428 | } |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3429 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3430 | // Activate single-step in the thread. |
| 3431 | thread->ActivateSingleStepControl(single_step_control); |
Elliott Hughes | 8696433 | 2012-02-15 19:37:42 -0800 | [diff] [blame] | 3432 | |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3433 | if (VLOG_IS_ON(jdwp)) { |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3434 | VLOG(jdwp) << "Single-step thread: " << *thread; |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3435 | VLOG(jdwp) << "Single-step step size: " << single_step_control->GetStepSize(); |
| 3436 | VLOG(jdwp) << "Single-step step depth: " << single_step_control->GetStepDepth(); |
| 3437 | VLOG(jdwp) << "Single-step current method: " << PrettyMethod(single_step_control->GetMethod()); |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3438 | VLOG(jdwp) << "Single-step current line: " << line_number; |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3439 | VLOG(jdwp) << "Single-step current stack depth: " << single_step_control->GetStackDepth(); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3440 | VLOG(jdwp) << "Single-step dex_pc values:"; |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3441 | for (uint32_t dex_pc : single_step_control->GetDexPcs()) { |
Sebastien Hertz | bb43b43 | 2014-04-14 11:59:08 +0200 | [diff] [blame] | 3442 | VLOG(jdwp) << StringPrintf(" %#x", dex_pc); |
Elliott Hughes | 2435a57 | 2012-02-17 16:07:41 -0800 | [diff] [blame] | 3443 | } |
| 3444 | } |
| 3445 | |
| 3446 | return JDWP::ERR_NONE; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3447 | } |
| 3448 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3449 | void Dbg::UnconfigureStep(JDWP::ObjectId thread_id) { |
| 3450 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 3451 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3452 | JDWP::JdwpError error; |
| 3453 | Thread* thread = DecodeThread(soa, thread_id, &error); |
Sebastien Hertz | 87118ed | 2013-11-26 17:57:18 +0100 | [diff] [blame] | 3454 | if (error == JDWP::ERR_NONE) { |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3455 | thread->DeactivateSingleStepControl(); |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 3456 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3457 | } |
| 3458 | |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3459 | static char JdwpTagToShortyChar(JDWP::JdwpTag tag) { |
| 3460 | switch (tag) { |
| 3461 | default: |
| 3462 | LOG(FATAL) << "unknown JDWP tag: " << PrintableChar(tag); |
Ian Rogers | fc787ec | 2014-10-09 21:56:44 -0700 | [diff] [blame] | 3463 | UNREACHABLE(); |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3464 | |
| 3465 | // Primitives. |
| 3466 | case JDWP::JT_BYTE: return 'B'; |
| 3467 | case JDWP::JT_CHAR: return 'C'; |
| 3468 | case JDWP::JT_FLOAT: return 'F'; |
| 3469 | case JDWP::JT_DOUBLE: return 'D'; |
| 3470 | case JDWP::JT_INT: return 'I'; |
| 3471 | case JDWP::JT_LONG: return 'J'; |
| 3472 | case JDWP::JT_SHORT: return 'S'; |
| 3473 | case JDWP::JT_VOID: return 'V'; |
| 3474 | case JDWP::JT_BOOLEAN: return 'Z'; |
| 3475 | |
| 3476 | // Reference types. |
| 3477 | case JDWP::JT_ARRAY: |
| 3478 | case JDWP::JT_OBJECT: |
| 3479 | case JDWP::JT_STRING: |
| 3480 | case JDWP::JT_THREAD: |
| 3481 | case JDWP::JT_THREAD_GROUP: |
| 3482 | case JDWP::JT_CLASS_LOADER: |
| 3483 | case JDWP::JT_CLASS_OBJECT: |
| 3484 | return 'L'; |
| 3485 | } |
| 3486 | } |
| 3487 | |
Elliott Hughes | 88d6309 | 2013-01-09 09:55:54 -0800 | [diff] [blame] | 3488 | JDWP::JdwpError Dbg::InvokeMethod(JDWP::ObjectId thread_id, JDWP::ObjectId object_id, |
| 3489 | JDWP::RefTypeId class_id, JDWP::MethodId method_id, |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3490 | uint32_t arg_count, uint64_t* arg_values, |
| 3491 | JDWP::JdwpTag* arg_types, uint32_t options, |
| 3492 | JDWP::JdwpTag* pResultTag, uint64_t* pResultValue, |
| 3493 | JDWP::ObjectId* pExceptionId) { |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3494 | ThreadList* thread_list = Runtime::Current()->GetThreadList(); |
| 3495 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3496 | Thread* targetThread = nullptr; |
| 3497 | DebugInvokeReq* req = nullptr; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3498 | Thread* self = Thread::Current(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3499 | { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3500 | ScopedObjectAccessUnchecked soa(self); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3501 | MutexLock mu(soa.Self(), *Locks::thread_list_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3502 | JDWP::JdwpError error; |
| 3503 | targetThread = DecodeThread(soa, thread_id, &error); |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 3504 | if (error != JDWP::ERR_NONE) { |
| 3505 | LOG(ERROR) << "InvokeMethod request for invalid thread id " << thread_id; |
| 3506 | return error; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3507 | } |
| 3508 | req = targetThread->GetInvokeReq(); |
| 3509 | if (!req->ready) { |
| 3510 | LOG(ERROR) << "InvokeMethod request for thread not stopped by event: " << *targetThread; |
| 3511 | return JDWP::ERR_INVALID_THREAD; |
| 3512 | } |
| 3513 | |
| 3514 | /* |
| 3515 | * We currently have a bug where we don't successfully resume the |
| 3516 | * target thread if the suspend count is too deep. We're expected to |
| 3517 | * require one "resume" for each "suspend", but when asked to execute |
| 3518 | * a method we have to resume fully and then re-suspend it back to the |
| 3519 | * same level. (The easiest way to cause this is to type "suspend" |
| 3520 | * multiple times in jdb.) |
| 3521 | * |
| 3522 | * It's unclear what this means when the event specifies "resume all" |
| 3523 | * and some threads are suspended more deeply than others. This is |
| 3524 | * a rare problem, so for now we just prevent it from hanging forever |
| 3525 | * by rejecting the method invocation request. Without this, we will |
| 3526 | * be stuck waiting on a suspended thread. |
| 3527 | */ |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3528 | int suspend_count; |
| 3529 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3530 | MutexLock mu2(soa.Self(), *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3531 | suspend_count = targetThread->GetSuspendCount(); |
| 3532 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3533 | if (suspend_count > 1) { |
| 3534 | LOG(ERROR) << *targetThread << " suspend count too deep for method invocation: " << suspend_count; |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 3535 | return JDWP::ERR_THREAD_SUSPENDED; // Probably not expected here. |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3536 | } |
| 3537 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3538 | mirror::Object* receiver = gRegistry->Get<mirror::Object*>(object_id, &error); |
| 3539 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 3540 | return JDWP::ERR_INVALID_OBJECT; |
| 3541 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3542 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3543 | mirror::Object* thread = gRegistry->Get<mirror::Object*>(thread_id, &error); |
| 3544 | if (error != JDWP::ERR_NONE) { |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 3545 | return JDWP::ERR_INVALID_OBJECT; |
| 3546 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3547 | // TODO: check that 'thread' is actually a java.lang.Thread! |
| 3548 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3549 | mirror::Class* c = DecodeClass(class_id, &error); |
| 3550 | if (c == nullptr) { |
| 3551 | return error; |
Elliott Hughes | 3f4d58f | 2012-02-18 20:05:37 -0800 | [diff] [blame] | 3552 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3553 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 3554 | mirror::ArtMethod* m = FromMethodId(method_id); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3555 | if (m->IsStatic() != (receiver == nullptr)) { |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3556 | return JDWP::ERR_INVALID_METHODID; |
| 3557 | } |
| 3558 | if (m->IsStatic()) { |
| 3559 | if (m->GetDeclaringClass() != c) { |
| 3560 | return JDWP::ERR_INVALID_METHODID; |
| 3561 | } |
| 3562 | } else { |
| 3563 | if (!m->GetDeclaringClass()->IsAssignableFrom(c)) { |
| 3564 | return JDWP::ERR_INVALID_METHODID; |
| 3565 | } |
| 3566 | } |
| 3567 | |
| 3568 | // Check the argument list matches the method. |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3569 | uint32_t shorty_len = 0; |
| 3570 | const char* shorty = m->GetShorty(&shorty_len); |
| 3571 | if (shorty_len - 1 != arg_count) { |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3572 | return JDWP::ERR_ILLEGAL_ARGUMENT; |
| 3573 | } |
Elliott Hughes | 0920163 | 2013-04-15 15:50:07 -0700 | [diff] [blame] | 3574 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3575 | { |
| 3576 | StackHandleScope<3> hs(soa.Self()); |
Ian Rogers | a048560 | 2014-12-02 15:48:04 -0800 | [diff] [blame] | 3577 | HandleWrapper<mirror::ArtMethod> h_m(hs.NewHandleWrapper(&m)); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3578 | HandleWrapper<mirror::Object> h_obj(hs.NewHandleWrapper(&receiver)); |
| 3579 | HandleWrapper<mirror::Class> h_klass(hs.NewHandleWrapper(&c)); |
| 3580 | const DexFile::TypeList* types = m->GetParameterTypeList(); |
| 3581 | for (size_t i = 0; i < arg_count; ++i) { |
| 3582 | if (shorty[i + 1] != JdwpTagToShortyChar(arg_types[i])) { |
Elliott Hughes | 0920163 | 2013-04-15 15:50:07 -0700 | [diff] [blame] | 3583 | return JDWP::ERR_ILLEGAL_ARGUMENT; |
| 3584 | } |
| 3585 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3586 | if (shorty[i + 1] == 'L') { |
| 3587 | // Did we really get an argument of an appropriate reference type? |
Ian Rogers | a048560 | 2014-12-02 15:48:04 -0800 | [diff] [blame] | 3588 | mirror::Class* parameter_type = |
| 3589 | h_m->GetClassFromTypeIndex(types->GetTypeItem(i).type_idx_, true); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3590 | mirror::Object* argument = gRegistry->Get<mirror::Object*>(arg_values[i], &error); |
| 3591 | if (error != JDWP::ERR_NONE) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3592 | return JDWP::ERR_INVALID_OBJECT; |
| 3593 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3594 | if (argument != nullptr && !argument->InstanceOf(parameter_type)) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3595 | return JDWP::ERR_ILLEGAL_ARGUMENT; |
| 3596 | } |
| 3597 | |
| 3598 | // Turn the on-the-wire ObjectId into a jobject. |
| 3599 | jvalue& v = reinterpret_cast<jvalue&>(arg_values[i]); |
| 3600 | v.l = gRegistry->GetJObject(arg_values[i]); |
| 3601 | } |
Elliott Hughes | 0920163 | 2013-04-15 15:50:07 -0700 | [diff] [blame] | 3602 | } |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3603 | } |
| 3604 | |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3605 | req->receiver = receiver; |
| 3606 | req->thread = thread; |
| 3607 | req->klass = c; |
| 3608 | req->method = m; |
| 3609 | req->arg_count = arg_count; |
| 3610 | req->arg_values = arg_values; |
| 3611 | req->options = options; |
| 3612 | req->invoke_needed = true; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3613 | } |
| 3614 | |
| 3615 | // The fact that we've released the thread list lock is a bit risky --- if the thread goes |
| 3616 | // away we're sitting high and dry -- but we must release this before the ResumeAllThreads |
| 3617 | // call, and it's unwise to hold it during WaitForSuspend. |
| 3618 | |
| 3619 | { |
| 3620 | /* |
| 3621 | * We change our (JDWP thread) status, which should be THREAD_RUNNING, |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 3622 | * 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] | 3623 | * run out of memory. It's also a good idea to change it before locking |
| 3624 | * the invokeReq mutex, although that should never be held for long. |
| 3625 | */ |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3626 | self->TransitionFromRunnableToSuspended(kWaitingForDebuggerSend); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3627 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3628 | VLOG(jdwp) << " Transferring control to event thread"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3629 | { |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3630 | MutexLock mu(self, req->lock); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3631 | |
| 3632 | if ((options & JDWP::INVOKE_SINGLE_THREADED) == 0) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3633 | VLOG(jdwp) << " Resuming all threads"; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3634 | thread_list->UndoDebuggerSuspensions(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3635 | } else { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3636 | VLOG(jdwp) << " Resuming event thread only"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3637 | thread_list->Resume(targetThread, true); |
| 3638 | } |
| 3639 | |
| 3640 | // Wait for the request to finish executing. |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3641 | while (req->invoke_needed) { |
| 3642 | req->cond.Wait(self); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3643 | } |
| 3644 | } |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3645 | VLOG(jdwp) << " Control has returned from event thread"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3646 | |
| 3647 | /* wait for thread to re-suspend itself */ |
Brian Carlstrom | df62950 | 2013-07-17 22:39:56 -0700 | [diff] [blame] | 3648 | SuspendThread(thread_id, false /* request_suspension */); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3649 | self->TransitionFromSuspendedToRunnable(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3650 | } |
| 3651 | |
| 3652 | /* |
| 3653 | * Suspend the threads. We waited for the target thread to suspend |
| 3654 | * itself, so all we need to do is suspend the others. |
| 3655 | * |
| 3656 | * The suspendAllThreads() call will double-suspend the event thread, |
| 3657 | * so we want to resume the target thread once to keep the books straight. |
| 3658 | */ |
| 3659 | if ((options & JDWP::INVOKE_SINGLE_THREADED) == 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3660 | self->TransitionFromRunnableToSuspended(kWaitingForDebuggerSuspension); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3661 | VLOG(jdwp) << " Suspending all threads"; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3662 | thread_list->SuspendAllForDebugger(); |
| 3663 | self->TransitionFromSuspendedToRunnable(); |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3664 | VLOG(jdwp) << " Resuming event thread to balance the count"; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3665 | thread_list->Resume(targetThread, true); |
| 3666 | } |
| 3667 | |
| 3668 | // Copy the result. |
| 3669 | *pResultTag = req->result_tag; |
| 3670 | if (IsPrimitiveTag(req->result_tag)) { |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3671 | *pResultValue = req->result_value.GetJ(); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3672 | } else { |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3673 | *pResultValue = gRegistry->Add(req->result_value.GetL()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3674 | } |
| 3675 | *pExceptionId = req->exception; |
| 3676 | return req->error; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3677 | } |
| 3678 | |
| 3679 | void Dbg::ExecuteMethod(DebugInvokeReq* pReq) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3680 | ScopedObjectAccess soa(Thread::Current()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3681 | |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 3682 | // We can be called while an exception is pending. We need |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3683 | // to preserve that across the method invocation. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3684 | StackHandleScope<4> hs(soa.Self()); |
| 3685 | auto old_throw_this_object = hs.NewHandle<mirror::Object>(nullptr); |
| 3686 | auto old_throw_method = hs.NewHandle<mirror::ArtMethod>(nullptr); |
| 3687 | auto old_exception = hs.NewHandle<mirror::Throwable>(nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3688 | uint32_t old_throw_dex_pc; |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 3689 | bool old_exception_report_flag; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3690 | { |
| 3691 | ThrowLocation old_throw_location; |
| 3692 | mirror::Throwable* old_exception_obj = soa.Self()->GetException(&old_throw_location); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3693 | old_throw_this_object.Assign(old_throw_location.GetThis()); |
| 3694 | old_throw_method.Assign(old_throw_location.GetMethod()); |
| 3695 | old_exception.Assign(old_exception_obj); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3696 | old_throw_dex_pc = old_throw_location.GetDexPc(); |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 3697 | old_exception_report_flag = soa.Self()->IsExceptionReportedToInstrumentation(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3698 | soa.Self()->ClearException(); |
| 3699 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3700 | |
| 3701 | // 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] | 3702 | MutableHandle<mirror::ArtMethod> m(hs.NewHandle(pReq->method)); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3703 | if ((pReq->options & JDWP::INVOKE_NONVIRTUAL) == 0 && pReq->receiver != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3704 | mirror::ArtMethod* actual_method = pReq->klass->FindVirtualMethodForVirtualOrInterface(m.Get()); |
| 3705 | if (actual_method != m.Get()) { |
| 3706 | VLOG(jdwp) << "ExecuteMethod translated " << PrettyMethod(m.Get()) << " to " << PrettyMethod(actual_method); |
| 3707 | m.Assign(actual_method); |
Elliott Hughes | 45651fd | 2012-02-21 15:48:20 -0800 | [diff] [blame] | 3708 | } |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3709 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3710 | VLOG(jdwp) << "ExecuteMethod " << PrettyMethod(m.Get()) |
Sebastien Hertz | d38667a | 2013-11-25 15:43:54 +0100 | [diff] [blame] | 3711 | << " receiver=" << pReq->receiver |
| 3712 | << " arg_count=" << pReq->arg_count; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3713 | CHECK(m.Get() != nullptr); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3714 | |
| 3715 | CHECK_EQ(sizeof(jvalue), sizeof(uint64_t)); |
| 3716 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3717 | pReq->result_value = InvokeWithJValues(soa, pReq->receiver, soa.EncodeMethod(m.Get()), |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 3718 | reinterpret_cast<jvalue*>(pReq->arg_values)); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3719 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3720 | mirror::Throwable* exception = soa.Self()->GetException(nullptr); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3721 | soa.Self()->ClearException(); |
| 3722 | pReq->exception = gRegistry->Add(exception); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 3723 | pReq->result_tag = BasicTagFromDescriptor(m.Get()->GetShorty()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3724 | if (pReq->exception != 0) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3725 | VLOG(jdwp) << " JDWP invocation returning with exception=" << exception |
| 3726 | << " " << exception->Dump(); |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3727 | pReq->result_value.SetJ(0); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3728 | } else if (pReq->result_tag == JDWP::JT_OBJECT) { |
| 3729 | /* if no exception thrown, examine object result more closely */ |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 3730 | JDWP::JdwpTag new_tag = TagFromObject(soa, pReq->result_value.GetL()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3731 | if (new_tag != pReq->result_tag) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3732 | VLOG(jdwp) << " JDWP promoted result from " << pReq->result_tag << " to " << new_tag; |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3733 | pReq->result_tag = new_tag; |
| 3734 | } |
| 3735 | |
| 3736 | /* |
| 3737 | * Register the object. We don't actually need an ObjectId yet, |
| 3738 | * but we do need to be sure that the GC won't move or discard the |
| 3739 | * object when we switch out of RUNNING. The ObjectId conversion |
| 3740 | * will add the object to the "do not touch" list. |
| 3741 | * |
| 3742 | * We can't use the "tracked allocation" mechanism here because |
| 3743 | * the object is going to be handed off to a different thread. |
| 3744 | */ |
Elliott Hughes | f24d3ce | 2012-04-11 17:43:37 -0700 | [diff] [blame] | 3745 | gRegistry->Add(pReq->result_value.GetL()); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3746 | } |
| 3747 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3748 | if (old_exception.Get() != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3749 | 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] | 3750 | old_throw_dex_pc); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3751 | soa.Self()->SetException(gc_safe_throw_location, old_exception.Get()); |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 3752 | soa.Self()->SetExceptionReportedToInstrumentation(old_exception_report_flag); |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3753 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3754 | } |
| 3755 | |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 3756 | /* |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3757 | * "request" contains a full JDWP packet, possibly with multiple chunks. We |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3758 | * need to process each, accumulate the replies, and ship the whole thing |
| 3759 | * back. |
| 3760 | * |
| 3761 | * Returns "true" if we have a reply. The reply buffer is newly allocated, |
| 3762 | * and includes the chunk type/length, followed by the data. |
| 3763 | * |
Elliott Hughes | 3d30d9b | 2011-12-07 17:35:48 -0800 | [diff] [blame] | 3764 | * 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] | 3765 | * chunk. If this becomes inconvenient we will need to adapt. |
| 3766 | */ |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3767 | bool Dbg::DdmHandlePacket(JDWP::Request* request, uint8_t** pReplyBuf, int* pReplyLen) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3768 | Thread* self = Thread::Current(); |
| 3769 | JNIEnv* env = self->GetJniEnv(); |
| 3770 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3771 | uint32_t type = request->ReadUnsigned32("type"); |
| 3772 | uint32_t length = request->ReadUnsigned32("length"); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3773 | |
| 3774 | // Create a byte[] corresponding to 'request'. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3775 | size_t request_length = request->size(); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3776 | ScopedLocalRef<jbyteArray> dataArray(env, env->NewByteArray(request_length)); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3777 | if (dataArray.get() == nullptr) { |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3778 | LOG(WARNING) << "byte[] allocation failed: " << request_length; |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3779 | env->ExceptionClear(); |
| 3780 | return false; |
| 3781 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3782 | env->SetByteArrayRegion(dataArray.get(), 0, request_length, |
| 3783 | reinterpret_cast<const jbyte*>(request->data())); |
| 3784 | request->Skip(request_length); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3785 | |
| 3786 | // Run through and find all chunks. [Currently just find the first.] |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 3787 | ScopedByteArrayRO contents(env, dataArray.get()); |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3788 | if (length != request_length) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3789 | 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] | 3790 | return false; |
| 3791 | } |
| 3792 | |
| 3793 | // 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] | 3794 | ScopedLocalRef<jobject> chunk(env, env->CallStaticObjectMethod(WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer, |
| 3795 | WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer_dispatch, |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3796 | type, dataArray.get(), 0, length)); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3797 | if (env->ExceptionCheck()) { |
| 3798 | LOG(INFO) << StringPrintf("Exception thrown by dispatcher for 0x%08x", type); |
| 3799 | env->ExceptionDescribe(); |
| 3800 | env->ExceptionClear(); |
| 3801 | return false; |
| 3802 | } |
| 3803 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3804 | if (chunk.get() == nullptr) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3805 | return false; |
| 3806 | } |
| 3807 | |
| 3808 | /* |
| 3809 | * Pull the pieces out of the chunk. We copy the results into a |
| 3810 | * newly-allocated buffer that the caller can free. We don't want to |
| 3811 | * continue using the Chunk object because nothing has a reference to it. |
| 3812 | * |
| 3813 | * We could avoid this by returning type/data/offset/length and having |
| 3814 | * the caller be aware of the object lifetime issues, but that |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 3815 | * 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] | 3816 | * if we have responses for multiple chunks. |
| 3817 | * |
| 3818 | * So we're pretty much stuck with copying data around multiple times. |
| 3819 | */ |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3820 | 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] | 3821 | 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] | 3822 | 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] | 3823 | 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] | 3824 | |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3825 | 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] | 3826 | if (length == 0 || replyData.get() == nullptr) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3827 | return false; |
| 3828 | } |
| 3829 | |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3830 | const int kChunkHdrLen = 8; |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3831 | uint8_t* reply = new uint8_t[length + kChunkHdrLen]; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3832 | if (reply == nullptr) { |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3833 | LOG(WARNING) << "malloc failed: " << (length + kChunkHdrLen); |
| 3834 | return false; |
| 3835 | } |
Elliott Hughes | f7c3b66 | 2011-10-27 12:04:56 -0700 | [diff] [blame] | 3836 | JDWP::Set4BE(reply + 0, type); |
| 3837 | JDWP::Set4BE(reply + 4, length); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 3838 | env->GetByteArrayRegion(replyData.get(), offset, length, reinterpret_cast<jbyte*>(reply + kChunkHdrLen)); |
Elliott Hughes | f6a1e1e | 2011-10-25 16:28:04 -0700 | [diff] [blame] | 3839 | |
| 3840 | *pReplyBuf = reply; |
| 3841 | *pReplyLen = length + kChunkHdrLen; |
| 3842 | |
Elliott Hughes | 4b9702c | 2013-02-20 18:13:24 -0800 | [diff] [blame] | 3843 | 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] | 3844 | return true; |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3845 | } |
| 3846 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3847 | void Dbg::DdmBroadcast(bool connect) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3848 | VLOG(jdwp) << "Broadcasting DDM " << (connect ? "connect" : "disconnect") << "..."; |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3849 | |
| 3850 | Thread* self = Thread::Current(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3851 | if (self->GetState() != kRunnable) { |
| 3852 | LOG(ERROR) << "DDM broadcast in thread state " << self->GetState(); |
| 3853 | /* try anyway? */ |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3854 | } |
| 3855 | |
| 3856 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3857 | jint event = connect ? 1 /*DdmServer.CONNECTED*/ : 2 /*DdmServer.DISCONNECTED*/; |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 3858 | env->CallStaticVoidMethod(WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer, |
| 3859 | WellKnownClasses::org_apache_harmony_dalvik_ddmc_DdmServer_broadcast, |
| 3860 | event); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3861 | if (env->ExceptionCheck()) { |
| 3862 | LOG(ERROR) << "DdmServer.broadcast " << event << " failed"; |
| 3863 | env->ExceptionDescribe(); |
| 3864 | env->ExceptionClear(); |
| 3865 | } |
| 3866 | } |
| 3867 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3868 | void Dbg::DdmConnected() { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3869 | Dbg::DdmBroadcast(true); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3870 | } |
| 3871 | |
| 3872 | void Dbg::DdmDisconnected() { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3873 | Dbg::DdmBroadcast(false); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3874 | gDdmThreadNotification = false; |
| 3875 | } |
| 3876 | |
| 3877 | /* |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3878 | * Send a notification when a thread starts, stops, or changes its name. |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3879 | * |
| 3880 | * Because we broadcast the full set of threads when the notifications are |
| 3881 | * first enabled, it's possible for "thread" to be actively executing. |
| 3882 | */ |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3883 | void Dbg::DdmSendThreadNotification(Thread* t, uint32_t type) { |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3884 | if (!gDdmThreadNotification) { |
| 3885 | return; |
| 3886 | } |
| 3887 | |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3888 | if (type == CHUNK_TYPE("THDE")) { |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3889 | uint8_t buf[4]; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 3890 | JDWP::Set4BE(&buf[0], t->GetThreadId()); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3891 | Dbg::DdmSendChunk(CHUNK_TYPE("THDE"), 4, buf); |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3892 | } else { |
| 3893 | CHECK(type == CHUNK_TYPE("THCR") || type == CHUNK_TYPE("THNM")) << type; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3894 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 3895 | StackHandleScope<1> hs(soa.Self()); |
| 3896 | Handle<mirror::String> name(hs.NewHandle(t->GetThreadName(soa))); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3897 | size_t char_count = (name.Get() != nullptr) ? name->GetLength() : 0; |
| 3898 | const jchar* chars = (name.Get() != nullptr) ? name->GetCharArray()->GetData() : nullptr; |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3899 | |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 3900 | std::vector<uint8_t> bytes; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 3901 | JDWP::Append4BE(bytes, t->GetThreadId()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 3902 | JDWP::AppendUtf16BE(bytes, chars, char_count); |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 3903 | CHECK_EQ(bytes.size(), char_count*2 + sizeof(uint32_t)*2); |
| 3904 | Dbg::DdmSendChunk(type, bytes); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3905 | } |
| 3906 | } |
| 3907 | |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3908 | void Dbg::DdmSetThreadNotification(bool enable) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3909 | // Enable/disable thread notifications. |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3910 | gDdmThreadNotification = enable; |
| 3911 | if (enable) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3912 | // Suspend the VM then post thread start notifications for all threads. Threads attaching will |
| 3913 | // see a suspension in progress and block until that ends. They then post their own start |
| 3914 | // notification. |
| 3915 | SuspendVM(); |
| 3916 | std::list<Thread*> threads; |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3917 | Thread* self = Thread::Current(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3918 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3919 | MutexLock mu(self, *Locks::thread_list_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3920 | threads = Runtime::Current()->GetThreadList()->GetList(); |
| 3921 | } |
| 3922 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 3923 | ScopedObjectAccess soa(self); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 3924 | for (Thread* thread : threads) { |
| 3925 | Dbg::DdmSendThreadNotification(thread, CHUNK_TYPE("THCR")); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3926 | } |
| 3927 | } |
| 3928 | ResumeVM(); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3929 | } |
| 3930 | } |
| 3931 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3932 | void Dbg::PostThreadStartOrStop(Thread* t, uint32_t type) { |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 3933 | if (IsDebuggerActive()) { |
Sebastien Hertz | 6995c60 | 2014-09-09 12:10:13 +0200 | [diff] [blame] | 3934 | gJdwpState->PostThreadChange(t, type == CHUNK_TYPE("THCR")); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3935 | } |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3936 | Dbg::DdmSendThreadNotification(t, type); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3937 | } |
| 3938 | |
| 3939 | void Dbg::PostThreadStart(Thread* t) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3940 | Dbg::PostThreadStartOrStop(t, CHUNK_TYPE("THCR")); |
Elliott Hughes | 47fce01 | 2011-10-25 18:37:19 -0700 | [diff] [blame] | 3941 | } |
| 3942 | |
| 3943 | void Dbg::PostThreadDeath(Thread* t) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 3944 | Dbg::PostThreadStartOrStop(t, CHUNK_TYPE("THDE")); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3945 | } |
| 3946 | |
Elliott Hughes | 8218847 | 2011-11-07 18:11:48 -0800 | [diff] [blame] | 3947 | 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] | 3948 | CHECK(buf != nullptr); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 3949 | iovec vec[1]; |
| 3950 | vec[0].iov_base = reinterpret_cast<void*>(const_cast<uint8_t*>(buf)); |
| 3951 | vec[0].iov_len = byte_count; |
| 3952 | Dbg::DdmSendChunkV(type, vec, 1); |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3953 | } |
| 3954 | |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 3955 | void Dbg::DdmSendChunk(uint32_t type, const std::vector<uint8_t>& bytes) { |
| 3956 | DdmSendChunk(type, bytes.size(), &bytes[0]); |
| 3957 | } |
| 3958 | |
Brian Carlstrom | f529352 | 2013-07-19 00:24:00 -0700 | [diff] [blame] | 3959 | void Dbg::DdmSendChunkV(uint32_t type, const iovec* iov, int iov_count) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 3960 | if (gJdwpState == nullptr) { |
Elliott Hughes | 4dd9b4d | 2011-12-12 18:29:24 -0800 | [diff] [blame] | 3961 | VLOG(jdwp) << "Debugger thread not active, ignoring DDM send: " << type; |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 3962 | } else { |
Elliott Hughes | cccd84f | 2011-12-05 16:51:54 -0800 | [diff] [blame] | 3963 | gJdwpState->DdmSendChunkV(type, iov, iov_count); |
Elliott Hughes | 3bb8156 | 2011-10-21 18:52:59 -0700 | [diff] [blame] | 3964 | } |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 3965 | } |
| 3966 | |
Mathieu Chartier | ad466ad | 2015-01-08 16:28:08 -0800 | [diff] [blame] | 3967 | JDWP::JdwpState* Dbg::GetJdwpState() { |
| 3968 | return gJdwpState; |
| 3969 | } |
| 3970 | |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 3971 | int Dbg::DdmHandleHpifChunk(HpifWhen when) { |
| 3972 | if (when == HPIF_WHEN_NOW) { |
Elliott Hughes | 7162ad9 | 2011-10-27 14:08:42 -0700 | [diff] [blame] | 3973 | DdmSendHeapInfo(when); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 3974 | return true; |
| 3975 | } |
| 3976 | |
| 3977 | if (when != HPIF_WHEN_NEVER && when != HPIF_WHEN_NEXT_GC && when != HPIF_WHEN_EVERY_GC) { |
| 3978 | LOG(ERROR) << "invalid HpifWhen value: " << static_cast<int>(when); |
| 3979 | return false; |
| 3980 | } |
| 3981 | |
| 3982 | gDdmHpifWhen = when; |
| 3983 | return true; |
| 3984 | } |
| 3985 | |
| 3986 | bool Dbg::DdmHandleHpsgNhsgChunk(Dbg::HpsgWhen when, Dbg::HpsgWhat what, bool native) { |
| 3987 | if (when != HPSG_WHEN_NEVER && when != HPSG_WHEN_EVERY_GC) { |
| 3988 | LOG(ERROR) << "invalid HpsgWhen value: " << static_cast<int>(when); |
| 3989 | return false; |
| 3990 | } |
| 3991 | |
| 3992 | if (what != HPSG_WHAT_MERGED_OBJECTS && what != HPSG_WHAT_DISTINCT_OBJECTS) { |
| 3993 | LOG(ERROR) << "invalid HpsgWhat value: " << static_cast<int>(what); |
| 3994 | return false; |
| 3995 | } |
| 3996 | |
| 3997 | if (native) { |
| 3998 | gDdmNhsgWhen = when; |
| 3999 | gDdmNhsgWhat = what; |
| 4000 | } else { |
| 4001 | gDdmHpsgWhen = when; |
| 4002 | gDdmHpsgWhat = what; |
| 4003 | } |
| 4004 | return true; |
| 4005 | } |
| 4006 | |
Elliott Hughes | 7162ad9 | 2011-10-27 14:08:42 -0700 | [diff] [blame] | 4007 | void Dbg::DdmSendHeapInfo(HpifWhen reason) { |
| 4008 | // If there's a one-shot 'when', reset it. |
| 4009 | if (reason == gDdmHpifWhen) { |
| 4010 | if (gDdmHpifWhen == HPIF_WHEN_NEXT_GC) { |
| 4011 | gDdmHpifWhen = HPIF_WHEN_NEVER; |
| 4012 | } |
| 4013 | } |
| 4014 | |
| 4015 | /* |
| 4016 | * Chunk HPIF (client --> server) |
| 4017 | * |
| 4018 | * Heap Info. General information about the heap, |
| 4019 | * suitable for a summary display. |
| 4020 | * |
| 4021 | * [u4]: number of heaps |
| 4022 | * |
| 4023 | * For each heap: |
| 4024 | * [u4]: heap ID |
| 4025 | * [u8]: timestamp in ms since Unix epoch |
| 4026 | * [u1]: capture reason (same as 'when' value from server) |
| 4027 | * [u4]: max heap size in bytes (-Xmx) |
| 4028 | * [u4]: current heap size in bytes |
| 4029 | * [u4]: current number of bytes allocated |
| 4030 | * [u4]: current number of objects allocated |
| 4031 | */ |
| 4032 | uint8_t heap_count = 1; |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 4033 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4034 | std::vector<uint8_t> bytes; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4035 | JDWP::Append4BE(bytes, heap_count); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4036 | JDWP::Append4BE(bytes, 1); // Heap id (bogus; we only have one heap). |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4037 | JDWP::Append8BE(bytes, MilliTime()); |
| 4038 | JDWP::Append1BE(bytes, reason); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4039 | JDWP::Append4BE(bytes, heap->GetMaxMemory()); // Max allowed heap size in bytes. |
| 4040 | JDWP::Append4BE(bytes, heap->GetTotalMemory()); // Current heap size in bytes. |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 4041 | JDWP::Append4BE(bytes, heap->GetBytesAllocated()); |
| 4042 | JDWP::Append4BE(bytes, heap->GetObjectsAllocated()); |
Elliott Hughes | 21f32d7 | 2011-11-09 17:44:13 -0800 | [diff] [blame] | 4043 | CHECK_EQ(bytes.size(), 4U + (heap_count * (4 + 8 + 1 + 4 + 4 + 4 + 4))); |
| 4044 | Dbg::DdmSendChunk(CHUNK_TYPE("HPIF"), bytes); |
Elliott Hughes | 767a147 | 2011-10-26 18:49:02 -0700 | [diff] [blame] | 4045 | } |
| 4046 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4047 | enum HpsgSolidity { |
| 4048 | SOLIDITY_FREE = 0, |
| 4049 | SOLIDITY_HARD = 1, |
| 4050 | SOLIDITY_SOFT = 2, |
| 4051 | SOLIDITY_WEAK = 3, |
| 4052 | SOLIDITY_PHANTOM = 4, |
| 4053 | SOLIDITY_FINALIZABLE = 5, |
| 4054 | SOLIDITY_SWEEP = 6, |
| 4055 | }; |
| 4056 | |
| 4057 | enum HpsgKind { |
| 4058 | KIND_OBJECT = 0, |
| 4059 | KIND_CLASS_OBJECT = 1, |
| 4060 | KIND_ARRAY_1 = 2, |
| 4061 | KIND_ARRAY_2 = 3, |
| 4062 | KIND_ARRAY_4 = 4, |
| 4063 | KIND_ARRAY_8 = 5, |
| 4064 | KIND_UNKNOWN = 6, |
| 4065 | KIND_NATIVE = 7, |
| 4066 | }; |
| 4067 | |
| 4068 | #define HPSG_PARTIAL (1<<7) |
| 4069 | #define HPSG_STATE(solidity, kind) ((uint8_t)((((kind) & 0x7) << 3) | ((solidity) & 0x7))) |
| 4070 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4071 | class HeapChunkContext { |
| 4072 | public: |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4073 | // Maximum chunk size. Obtain this from the formula: |
| 4074 | // (((maximum_heap_size / ALLOCATION_UNIT_SIZE) + 255) / 256) * 2 |
| 4075 | HeapChunkContext(bool merge, bool native) |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4076 | : buf_(16384 - 16), |
| 4077 | type_(0), |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4078 | chunk_overhead_(0) { |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4079 | Reset(); |
| 4080 | if (native) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4081 | type_ = CHUNK_TYPE("NHSG"); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4082 | } else { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4083 | type_ = merge ? CHUNK_TYPE("HPSG") : CHUNK_TYPE("HPSO"); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4084 | } |
| 4085 | } |
| 4086 | |
| 4087 | ~HeapChunkContext() { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4088 | if (p_ > &buf_[0]) { |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4089 | Flush(); |
| 4090 | } |
| 4091 | } |
| 4092 | |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4093 | void SetChunkOverhead(size_t chunk_overhead) { |
| 4094 | chunk_overhead_ = chunk_overhead; |
| 4095 | } |
| 4096 | |
| 4097 | void ResetStartOfNextChunk() { |
| 4098 | startOfNextMemoryChunk_ = nullptr; |
| 4099 | } |
| 4100 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4101 | void EnsureHeader(const void* chunk_ptr) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4102 | if (!needHeader_) { |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4103 | return; |
| 4104 | } |
| 4105 | |
| 4106 | // Start a new HPSx chunk. |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4107 | JDWP::Write4BE(&p_, 1); // Heap id (bogus; we only have one heap). |
| 4108 | JDWP::Write1BE(&p_, 8); // Size of allocation unit, in bytes. |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4109 | |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4110 | JDWP::Write4BE(&p_, reinterpret_cast<uintptr_t>(chunk_ptr)); // virtual address of segment start. |
| 4111 | 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] | 4112 | // [u4]: length of piece, in allocation units |
| 4113 | // 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] | 4114 | pieceLenField_ = p_; |
| 4115 | JDWP::Write4BE(&p_, 0x55555555); |
| 4116 | needHeader_ = false; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4117 | } |
| 4118 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4119 | void Flush() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4120 | if (pieceLenField_ == nullptr) { |
Ian Rogers | d636b06 | 2013-01-18 17:51:18 -0800 | [diff] [blame] | 4121 | // Flush immediately post Reset (maybe back-to-back Flush). Ignore. |
| 4122 | CHECK(needHeader_); |
| 4123 | return; |
| 4124 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4125 | // Patch the "length of piece" field. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4126 | CHECK_LE(&buf_[0], pieceLenField_); |
| 4127 | CHECK_LE(pieceLenField_, p_); |
| 4128 | JDWP::Set4BE(pieceLenField_, totalAllocationUnits_); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4129 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4130 | Dbg::DdmSendChunk(type_, p_ - &buf_[0], &buf_[0]); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4131 | Reset(); |
| 4132 | } |
| 4133 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4134 | 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] | 4135 | SHARED_LOCKS_REQUIRED(Locks::heap_bitmap_lock_, |
| 4136 | Locks::mutator_lock_) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4137 | reinterpret_cast<HeapChunkContext*>(arg)->HeapChunkJavaCallback(start, end, used_bytes); |
| 4138 | } |
| 4139 | |
| 4140 | static void HeapChunkNativeCallback(void* start, void* end, size_t used_bytes, void* arg) |
| 4141 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4142 | reinterpret_cast<HeapChunkContext*>(arg)->HeapChunkNativeCallback(start, end, used_bytes); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4143 | } |
| 4144 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4145 | private: |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4146 | enum { ALLOCATION_UNIT_SIZE = 8 }; |
| 4147 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4148 | void Reset() { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4149 | p_ = &buf_[0]; |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4150 | ResetStartOfNextChunk(); |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4151 | totalAllocationUnits_ = 0; |
| 4152 | needHeader_ = true; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4153 | pieceLenField_ = nullptr; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4154 | } |
| 4155 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4156 | bool IsNative() const { |
| 4157 | return type_ == CHUNK_TYPE("NHSG"); |
| 4158 | } |
| 4159 | |
| 4160 | // Returns true if the object is not an empty chunk. |
| 4161 | 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] | 4162 | // Note: heap call backs cannot manipulate the heap upon which they are crawling, care is taken |
| 4163 | // 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] | 4164 | if (used_bytes == 0) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4165 | if (start == nullptr) { |
| 4166 | // Reset for start of new heap. |
| 4167 | startOfNextMemoryChunk_ = nullptr; |
| 4168 | Flush(); |
| 4169 | } |
| 4170 | // Only process in use memory so that free region information |
| 4171 | // also includes dlmalloc book keeping. |
| 4172 | return false; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4173 | } |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4174 | if (startOfNextMemoryChunk_ != nullptr) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4175 | // Transmit any pending free memory. Native free memory of over kMaxFreeLen could be because |
| 4176 | // of the use of mmaps, so don't report. If not free memory then start a new segment. |
| 4177 | bool flush = true; |
| 4178 | if (start > startOfNextMemoryChunk_) { |
| 4179 | const size_t kMaxFreeLen = 2 * kPageSize; |
| 4180 | void* free_start = startOfNextMemoryChunk_; |
| 4181 | void* free_end = start; |
| 4182 | const size_t free_len = |
| 4183 | reinterpret_cast<uintptr_t>(free_end) - reinterpret_cast<uintptr_t>(free_start); |
| 4184 | if (!IsNative() || free_len < kMaxFreeLen) { |
| 4185 | AppendChunk(HPSG_STATE(SOLIDITY_FREE, 0), free_start, free_len, IsNative()); |
| 4186 | flush = false; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4187 | } |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4188 | } |
| 4189 | if (flush) { |
| 4190 | startOfNextMemoryChunk_ = nullptr; |
| 4191 | Flush(); |
| 4192 | } |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4193 | } |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4194 | return true; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4195 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4196 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4197 | void HeapChunkNativeCallback(void* start, void* /*end*/, size_t used_bytes) |
| 4198 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4199 | if (ProcessRecord(start, used_bytes)) { |
| 4200 | uint8_t state = ExamineNativeObject(start); |
| 4201 | AppendChunk(state, start, used_bytes + chunk_overhead_, true /*is_native*/); |
| 4202 | startOfNextMemoryChunk_ = reinterpret_cast<char*>(start) + used_bytes + chunk_overhead_; |
| 4203 | } |
| 4204 | } |
| 4205 | |
| 4206 | void HeapChunkJavaCallback(void* start, void* /*end*/, size_t used_bytes) |
| 4207 | SHARED_LOCKS_REQUIRED(Locks::heap_bitmap_lock_, Locks::mutator_lock_) { |
| 4208 | if (ProcessRecord(start, used_bytes)) { |
| 4209 | // Determine the type of this chunk. |
| 4210 | // OLD-TODO: if context.merge, see if this chunk is different from the last chunk. |
| 4211 | // If it's the same, we should combine them. |
| 4212 | uint8_t state = ExamineJavaObject(reinterpret_cast<mirror::Object*>(start)); |
| 4213 | AppendChunk(state, start, used_bytes + chunk_overhead_, false /*is_native*/); |
| 4214 | startOfNextMemoryChunk_ = reinterpret_cast<char*>(start) + used_bytes + chunk_overhead_; |
| 4215 | } |
| 4216 | } |
| 4217 | |
| 4218 | 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] | 4219 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4220 | // Make sure there's enough room left in the buffer. |
| 4221 | // We need to use two bytes for every fractional 256 allocation units used by the chunk plus |
| 4222 | // 17 bytes for any header. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4223 | const size_t needed = ((RoundUp(length / ALLOCATION_UNIT_SIZE, 256) / 256) * 2) + 17; |
| 4224 | size_t byte_left = &buf_.back() - p_; |
| 4225 | if (byte_left < needed) { |
| 4226 | if (is_native) { |
Pavel Vyssotski | 7522c74 | 2014-12-08 13:38:26 +0600 | [diff] [blame] | 4227 | // Cannot trigger memory allocation while walking native heap. |
Pavel Vyssotski | 7522c74 | 2014-12-08 13:38:26 +0600 | [diff] [blame] | 4228 | return; |
| 4229 | } |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4230 | Flush(); |
| 4231 | } |
| 4232 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4233 | byte_left = &buf_.back() - p_; |
| 4234 | if (byte_left < needed) { |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4235 | LOG(WARNING) << "Chunk is too big to transmit (chunk_len=" << length << ", " |
| 4236 | << needed << " bytes)"; |
| 4237 | return; |
| 4238 | } |
| 4239 | EnsureHeader(ptr); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4240 | // Write out the chunk description. |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4241 | length /= ALLOCATION_UNIT_SIZE; // Convert to allocation units. |
| 4242 | totalAllocationUnits_ += length; |
| 4243 | while (length > 256) { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4244 | *p_++ = state | HPSG_PARTIAL; |
| 4245 | *p_++ = 255; // length - 1 |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4246 | length -= 256; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4247 | } |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4248 | *p_++ = state; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4249 | *p_++ = length - 1; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4250 | } |
| 4251 | |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4252 | uint8_t ExamineNativeObject(const void* p) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 4253 | return p == nullptr ? HPSG_STATE(SOLIDITY_FREE, 0) : HPSG_STATE(SOLIDITY_HARD, KIND_NATIVE); |
| 4254 | } |
| 4255 | |
| 4256 | uint8_t ExamineJavaObject(mirror::Object* o) |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 4257 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_, Locks::heap_bitmap_lock_) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4258 | if (o == nullptr) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4259 | return HPSG_STATE(SOLIDITY_FREE, 0); |
| 4260 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4261 | // It's an allocated chunk. Figure out what it is. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4262 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 4263 | if (!heap->IsLiveObjectLocked(o)) { |
| 4264 | LOG(ERROR) << "Invalid object in managed heap: " << o; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4265 | return HPSG_STATE(SOLIDITY_HARD, KIND_NATIVE); |
| 4266 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 4267 | mirror::Class* c = o->GetClass(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4268 | if (c == nullptr) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4269 | // The object was probably just created but hasn't been initialized yet. |
| 4270 | return HPSG_STATE(SOLIDITY_HARD, KIND_OBJECT); |
| 4271 | } |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4272 | if (!heap->IsValidObjectAddress(c)) { |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4273 | LOG(ERROR) << "Invalid class for managed heap object: " << o << " " << c; |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4274 | return HPSG_STATE(SOLIDITY_HARD, KIND_UNKNOWN); |
| 4275 | } |
Mathieu Chartier | f26e1b3 | 2015-01-29 10:47:10 -0800 | [diff] [blame] | 4276 | if (c->GetClass() == nullptr) { |
| 4277 | LOG(ERROR) << "Null class of class " << c << " for object " << o; |
| 4278 | return HPSG_STATE(SOLIDITY_HARD, KIND_UNKNOWN); |
| 4279 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4280 | if (c->IsClassClass()) { |
| 4281 | return HPSG_STATE(SOLIDITY_HARD, KIND_CLASS_OBJECT); |
| 4282 | } |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4283 | if (c->IsArrayClass()) { |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4284 | switch (c->GetComponentSize()) { |
| 4285 | case 1: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_1); |
| 4286 | case 2: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_2); |
| 4287 | case 4: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_4); |
| 4288 | case 8: return HPSG_STATE(SOLIDITY_HARD, KIND_ARRAY_8); |
| 4289 | } |
| 4290 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4291 | return HPSG_STATE(SOLIDITY_HARD, KIND_OBJECT); |
| 4292 | } |
| 4293 | |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4294 | std::vector<uint8_t> buf_; |
| 4295 | uint8_t* p_; |
| 4296 | uint8_t* pieceLenField_; |
Ian Rogers | 15bf2d3 | 2012-08-28 17:33:04 -0700 | [diff] [blame] | 4297 | void* startOfNextMemoryChunk_; |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4298 | size_t totalAllocationUnits_; |
| 4299 | uint32_t type_; |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4300 | bool needHeader_; |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4301 | size_t chunk_overhead_; |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 4302 | |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4303 | DISALLOW_COPY_AND_ASSIGN(HeapChunkContext); |
| 4304 | }; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4305 | |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4306 | static void BumpPointerSpaceCallback(mirror::Object* obj, void* arg) |
| 4307 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) EXCLUSIVE_LOCKS_REQUIRED(Locks::heap_bitmap_lock_) { |
| 4308 | const size_t size = RoundUp(obj->SizeOf(), kObjectAlignment); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4309 | HeapChunkContext::HeapChunkJavaCallback( |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4310 | obj, reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(obj) + size), size, arg); |
| 4311 | } |
| 4312 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4313 | void Dbg::DdmSendHeapSegments(bool native) { |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4314 | Dbg::HpsgWhen when = native ? gDdmNhsgWhen : gDdmHpsgWhen; |
| 4315 | Dbg::HpsgWhat what = native ? gDdmNhsgWhat : gDdmHpsgWhat; |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4316 | if (when == HPSG_WHEN_NEVER) { |
| 4317 | return; |
| 4318 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4319 | // Figure out what kind of chunks we'll be sending. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4320 | CHECK(what == HPSG_WHAT_MERGED_OBJECTS || what == HPSG_WHAT_DISTINCT_OBJECTS) |
| 4321 | << static_cast<int>(what); |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4322 | |
| 4323 | // First, send a heap start chunk. |
| 4324 | uint8_t heap_id[4]; |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4325 | 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] | 4326 | 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] | 4327 | Thread* self = Thread::Current(); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 4328 | Locks::mutator_lock_->AssertSharedHeld(self); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 4329 | |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4330 | // Send a series of heap segment chunks. |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4331 | HeapChunkContext context(what == HPSG_WHAT_MERGED_OBJECTS, native); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4332 | if (native) { |
Ian Rogers | 872dd82 | 2014-10-30 11:19:14 -0700 | [diff] [blame] | 4333 | #if defined(HAVE_ANDROID_OS) && defined(USE_DLMALLOC) |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4334 | dlmalloc_inspect_all(HeapChunkContext::HeapChunkNativeCallback, &context); |
| 4335 | HeapChunkContext::HeapChunkNativeCallback(nullptr, nullptr, 0, &context); // Indicate end of a space. |
Christopher Ferris | c4ddc04 | 2014-05-13 14:47:50 -0700 | [diff] [blame] | 4336 | #else |
| 4337 | UNIMPLEMENTED(WARNING) << "Native heap inspection is only supported with dlmalloc"; |
| 4338 | #endif |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4339 | } else { |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 4340 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4341 | for (const auto& space : heap->GetContinuousSpaces()) { |
| 4342 | if (space->IsDlMallocSpace()) { |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4343 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4344 | // dlmalloc's chunk header is 2 * sizeof(size_t), but if the previous chunk is in use for an |
| 4345 | // allocation then the first sizeof(size_t) may belong to it. |
| 4346 | context.SetChunkOverhead(sizeof(size_t)); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4347 | space->AsDlMallocSpace()->Walk(HeapChunkContext::HeapChunkJavaCallback, &context); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4348 | } else if (space->IsRosAllocSpace()) { |
| 4349 | context.SetChunkOverhead(0); |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4350 | // Need to acquire the mutator lock before the heap bitmap lock with exclusive access since |
| 4351 | // RosAlloc's internal logic doesn't know to release and reacquire the heap bitmap lock. |
| 4352 | self->TransitionFromRunnableToSuspended(kSuspended); |
| 4353 | ThreadList* tl = Runtime::Current()->GetThreadList(); |
| 4354 | tl->SuspendAll(); |
| 4355 | { |
| 4356 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4357 | space->AsRosAllocSpace()->Walk(HeapChunkContext::HeapChunkJavaCallback, &context); |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4358 | } |
| 4359 | tl->ResumeAll(); |
| 4360 | self->TransitionFromSuspendedToRunnable(); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4361 | } else if (space->IsBumpPointerSpace()) { |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4362 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4363 | context.SetChunkOverhead(0); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4364 | space->AsBumpPointerSpace()->Walk(BumpPointerSpaceCallback, &context); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4365 | HeapChunkContext::HeapChunkJavaCallback(nullptr, nullptr, 0, &context); |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 4366 | } else if (space->IsRegionSpace()) { |
| 4367 | heap->IncrementDisableMovingGC(self); |
| 4368 | self->TransitionFromRunnableToSuspended(kSuspended); |
| 4369 | ThreadList* tl = Runtime::Current()->GetThreadList(); |
| 4370 | tl->SuspendAll(); |
| 4371 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
| 4372 | context.SetChunkOverhead(0); |
| 4373 | space->AsRegionSpace()->Walk(BumpPointerSpaceCallback, &context); |
| 4374 | HeapChunkContext::HeapChunkJavaCallback(nullptr, nullptr, 0, &context); |
| 4375 | tl->ResumeAll(); |
| 4376 | self->TransitionFromSuspendedToRunnable(); |
| 4377 | heap->DecrementDisableMovingGC(self); |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4378 | } else { |
| 4379 | UNIMPLEMENTED(WARNING) << "Not counting objects in space " << *space; |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 4380 | } |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4381 | context.ResetStartOfNextChunk(); |
Mathieu Chartier | b062fdd | 2012-07-03 09:51:48 -0700 | [diff] [blame] | 4382 | } |
Mathieu Chartier | 4c69d7f | 2014-10-10 12:45:50 -0700 | [diff] [blame] | 4383 | ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | e0f0cb3 | 2012-08-28 11:26:00 -0700 | [diff] [blame] | 4384 | // Walk the large objects, these are not in the AllocSpace. |
Mathieu Chartier | 36dab36 | 2014-07-30 14:59:56 -0700 | [diff] [blame] | 4385 | context.SetChunkOverhead(0); |
Mathieu Chartier | bc689b7 | 2014-12-14 17:01:31 -0800 | [diff] [blame] | 4386 | heap->GetLargeObjectsSpace()->Walk(HeapChunkContext::HeapChunkJavaCallback, &context); |
Elliott Hughes | a215526 | 2011-11-16 16:26:58 -0800 | [diff] [blame] | 4387 | } |
Elliott Hughes | 6a5bd49 | 2011-10-28 14:33:57 -0700 | [diff] [blame] | 4388 | |
| 4389 | // Finally, send a heap end chunk. |
| 4390 | 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] | 4391 | } |
| 4392 | |
Elliott Hughes | b1a5879 | 2013-07-11 18:10:58 -0700 | [diff] [blame] | 4393 | static size_t GetAllocTrackerMax() { |
| 4394 | #ifdef HAVE_ANDROID_OS |
| 4395 | // Check whether there's a system property overriding the number of records. |
| 4396 | const char* propertyName = "dalvik.vm.allocTrackerMax"; |
| 4397 | char allocRecordMaxString[PROPERTY_VALUE_MAX]; |
| 4398 | if (property_get(propertyName, allocRecordMaxString, "") > 0) { |
| 4399 | char* end; |
| 4400 | size_t value = strtoul(allocRecordMaxString, &end, 10); |
| 4401 | if (*end != '\0') { |
Ruben Brunk | 3e47a74 | 2013-09-09 17:56:07 -0700 | [diff] [blame] | 4402 | LOG(ERROR) << "Ignoring " << propertyName << " '" << allocRecordMaxString |
| 4403 | << "' --- invalid"; |
Elliott Hughes | b1a5879 | 2013-07-11 18:10:58 -0700 | [diff] [blame] | 4404 | return kDefaultNumAllocRecords; |
| 4405 | } |
| 4406 | if (!IsPowerOfTwo(value)) { |
Ruben Brunk | 3e47a74 | 2013-09-09 17:56:07 -0700 | [diff] [blame] | 4407 | LOG(ERROR) << "Ignoring " << propertyName << " '" << allocRecordMaxString |
| 4408 | << "' --- not power of two"; |
Elliott Hughes | b1a5879 | 2013-07-11 18:10:58 -0700 | [diff] [blame] | 4409 | return kDefaultNumAllocRecords; |
| 4410 | } |
| 4411 | return value; |
| 4412 | } |
| 4413 | #endif |
| 4414 | return kDefaultNumAllocRecords; |
| 4415 | } |
| 4416 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4417 | void Dbg::SetAllocTrackingEnabled(bool enable) { |
| 4418 | Thread* self = Thread::Current(); |
| 4419 | if (enable) { |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4420 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4421 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
| 4422 | if (recent_allocation_records_ != nullptr) { |
| 4423 | return; // Already enabled, bail. |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4424 | } |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4425 | alloc_record_max_ = GetAllocTrackerMax(); |
| 4426 | LOG(INFO) << "Enabling alloc tracker (" << alloc_record_max_ << " entries of " |
| 4427 | << kMaxAllocRecordStackDepth << " frames, taking " |
| 4428 | << PrettySize(sizeof(AllocRecord) * alloc_record_max_) << ")"; |
| 4429 | DCHECK_EQ(alloc_record_head_, 0U); |
| 4430 | DCHECK_EQ(alloc_record_count_, 0U); |
| 4431 | recent_allocation_records_ = new AllocRecord[alloc_record_max_]; |
| 4432 | CHECK(recent_allocation_records_ != nullptr); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4433 | } |
Mathieu Chartier | 9ef78b5 | 2014-09-25 17:03:12 -0700 | [diff] [blame] | 4434 | Runtime::Current()->GetInstrumentation()->InstrumentQuickAllocEntryPoints(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4435 | } else { |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4436 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4437 | ScopedObjectAccess soa(self); // For type_cache_.Clear(); |
| 4438 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
| 4439 | if (recent_allocation_records_ == nullptr) { |
| 4440 | return; // Already disabled, bail. |
| 4441 | } |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 4442 | LOG(INFO) << "Disabling alloc tracker"; |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4443 | delete[] recent_allocation_records_; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4444 | recent_allocation_records_ = nullptr; |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4445 | alloc_record_head_ = 0; |
| 4446 | alloc_record_count_ = 0; |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 4447 | type_cache_.Clear(); |
Sebastien Hertz | b98063a | 2014-03-26 10:57:20 +0100 | [diff] [blame] | 4448 | } |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4449 | // 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] | 4450 | Runtime::Current()->GetInstrumentation()->UninstrumentQuickAllocEntryPoints(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4451 | } |
| 4452 | } |
| 4453 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 4454 | struct AllocRecordStackVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 4455 | AllocRecordStackVisitor(Thread* thread, AllocRecord* record_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 4456 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 4457 | : StackVisitor(thread, nullptr), record(record_in), depth(0) {} |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4458 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4459 | // TODO: Enable annotalysis. We know lock is held in constructor, but abstraction confuses |
| 4460 | // annotalysis. |
| 4461 | bool VisitFrame() NO_THREAD_SAFETY_ANALYSIS { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4462 | if (depth >= kMaxAllocRecordStackDepth) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 4463 | return false; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4464 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 4465 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 4466 | if (!m->IsRuntimeMethod()) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4467 | record->StackElement(depth)->SetMethod(m); |
| 4468 | record->StackElement(depth)->SetDexPc(GetDexPc()); |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 4469 | ++depth; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4470 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 4471 | return true; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4472 | } |
| 4473 | |
| 4474 | ~AllocRecordStackVisitor() { |
| 4475 | // Clear out any unused stack trace elements. |
| 4476 | for (; depth < kMaxAllocRecordStackDepth; ++depth) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4477 | record->StackElement(depth)->SetMethod(nullptr); |
| 4478 | record->StackElement(depth)->SetDexPc(0); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4479 | } |
| 4480 | } |
| 4481 | |
| 4482 | AllocRecord* record; |
| 4483 | size_t depth; |
| 4484 | }; |
| 4485 | |
Ian Rogers | 844506b | 2014-09-12 19:59:33 -0700 | [diff] [blame] | 4486 | void Dbg::RecordAllocation(Thread* self, mirror::Class* type, size_t byte_count) { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4487 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4488 | if (recent_allocation_records_ == nullptr) { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4489 | // In the process of shutting down recording, bail. |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4490 | return; |
| 4491 | } |
| 4492 | |
| 4493 | // Advance and clip. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4494 | if (++alloc_record_head_ == alloc_record_max_) { |
| 4495 | alloc_record_head_ = 0; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4496 | } |
| 4497 | |
| 4498 | // Fill in the basics. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4499 | AllocRecord* record = &recent_allocation_records_[alloc_record_head_]; |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4500 | record->SetType(type); |
| 4501 | record->SetByteCount(byte_count); |
| 4502 | record->SetThinLockId(self->GetThreadId()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4503 | |
| 4504 | // Fill in the stack trace. |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 4505 | AllocRecordStackVisitor visitor(self, record); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 4506 | visitor.WalkStack(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4507 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4508 | if (alloc_record_count_ < alloc_record_max_) { |
| 4509 | ++alloc_record_count_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4510 | } |
| 4511 | } |
| 4512 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4513 | // Returns the index of the head element. |
| 4514 | // |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4515 | // 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] | 4516 | // we want to use the current element. Take "head+1" and subtract count |
| 4517 | // from it. |
| 4518 | // |
| 4519 | // We need to handle underflow in our circular buffer, so we add |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4520 | // alloc_record_max_ and then mask it back down. |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4521 | size_t Dbg::HeadIndex() { |
| 4522 | return (Dbg::alloc_record_head_ + 1 + Dbg::alloc_record_max_ - Dbg::alloc_record_count_) & |
| 4523 | (Dbg::alloc_record_max_ - 1); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4524 | } |
| 4525 | |
| 4526 | void Dbg::DumpRecentAllocations() { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 4527 | ScopedObjectAccess soa(Thread::Current()); |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4528 | MutexLock mu(soa.Self(), *Locks::alloc_tracker_lock_); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4529 | if (recent_allocation_records_ == nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4530 | LOG(INFO) << "Not recording tracked allocations"; |
| 4531 | return; |
| 4532 | } |
| 4533 | |
| 4534 | // "i" is the head of the list. We want to start at the end of the |
| 4535 | // list and move forward to the tail. |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4536 | size_t i = HeadIndex(); |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4537 | const uint16_t capped_count = CappedAllocRecordCount(Dbg::alloc_record_count_); |
| 4538 | uint16_t count = capped_count; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4539 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4540 | LOG(INFO) << "Tracked allocations, (head=" << alloc_record_head_ << " count=" << count << ")"; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4541 | while (count--) { |
| 4542 | AllocRecord* record = &recent_allocation_records_[i]; |
| 4543 | |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4544 | LOG(INFO) << StringPrintf(" Thread %-2d %6zd bytes ", record->ThinLockId(), record->ByteCount()) |
| 4545 | << PrettyClass(record->Type()); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4546 | |
| 4547 | for (size_t stack_frame = 0; stack_frame < kMaxAllocRecordStackDepth; ++stack_frame) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4548 | AllocRecordStackTraceElement* stack_element = record->StackElement(stack_frame); |
| 4549 | mirror::ArtMethod* m = stack_element->Method(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4550 | if (m == nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4551 | break; |
| 4552 | } |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4553 | LOG(INFO) << " " << PrettyMethod(m) << " line " << stack_element->LineNumber(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4554 | } |
| 4555 | |
| 4556 | // pause periodically to help logcat catch up |
| 4557 | if ((count % 5) == 0) { |
| 4558 | usleep(40000); |
| 4559 | } |
| 4560 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4561 | i = (i + 1) & (alloc_record_max_ - 1); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4562 | } |
| 4563 | } |
| 4564 | |
| 4565 | class StringTable { |
| 4566 | public: |
| 4567 | StringTable() { |
| 4568 | } |
| 4569 | |
Mathieu Chartier | 4345c46 | 2014-06-27 10:20:14 -0700 | [diff] [blame] | 4570 | void Add(const std::string& str) { |
| 4571 | table_.insert(str); |
| 4572 | } |
| 4573 | |
| 4574 | void Add(const char* str) { |
| 4575 | table_.insert(str); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4576 | } |
| 4577 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4578 | size_t IndexOf(const char* s) const { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4579 | auto it = table_.find(s); |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4580 | if (it == table_.end()) { |
| 4581 | LOG(FATAL) << "IndexOf(\"" << s << "\") failed"; |
| 4582 | } |
| 4583 | return std::distance(table_.begin(), it); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4584 | } |
| 4585 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4586 | size_t Size() const { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4587 | return table_.size(); |
| 4588 | } |
| 4589 | |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4590 | void WriteTo(std::vector<uint8_t>& bytes) const { |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 4591 | for (const std::string& str : table_) { |
| 4592 | const char* s = str.c_str(); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4593 | size_t s_len = CountModifiedUtf8Chars(s); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 4594 | std::unique_ptr<uint16_t> s_utf16(new uint16_t[s_len]); |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 4595 | ConvertModifiedUtf8ToUtf16(s_utf16.get(), s); |
| 4596 | JDWP::AppendUtf16BE(bytes, s_utf16.get(), s_len); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4597 | } |
| 4598 | } |
| 4599 | |
| 4600 | private: |
Elliott Hughes | a8f93cb | 2012-06-08 17:08:48 -0700 | [diff] [blame] | 4601 | std::set<std::string> table_; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4602 | DISALLOW_COPY_AND_ASSIGN(StringTable); |
| 4603 | }; |
| 4604 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4605 | static const char* GetMethodSourceFile(mirror::ArtMethod* method) |
Sebastien Hertz | 280286a | 2014-04-28 09:26:50 +0200 | [diff] [blame] | 4606 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4607 | DCHECK(method != nullptr); |
| 4608 | const char* source_file = method->GetDeclaringClassSourceFile(); |
Sebastien Hertz | 280286a | 2014-04-28 09:26:50 +0200 | [diff] [blame] | 4609 | return (source_file != nullptr) ? source_file : ""; |
| 4610 | } |
| 4611 | |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4612 | /* |
| 4613 | * The data we send to DDMS contains everything we have recorded. |
| 4614 | * |
| 4615 | * Message header (all values big-endian): |
| 4616 | * (1b) message header len (to allow future expansion); includes itself |
| 4617 | * (1b) entry header len |
| 4618 | * (1b) stack frame len |
| 4619 | * (2b) number of entries |
| 4620 | * (4b) offset to string table from start of message |
| 4621 | * (2b) number of class name strings |
| 4622 | * (2b) number of method name strings |
| 4623 | * (2b) number of source file name strings |
| 4624 | * For each entry: |
| 4625 | * (4b) total allocation size |
Elliott Hughes | 221229c | 2013-01-08 18:17:50 -0800 | [diff] [blame] | 4626 | * (2b) thread id |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4627 | * (2b) allocated object's class name index |
| 4628 | * (1b) stack depth |
| 4629 | * For each stack frame: |
| 4630 | * (2b) method's class name |
| 4631 | * (2b) method name |
| 4632 | * (2b) method source file |
| 4633 | * (2b) line number, clipped to 32767; -2 if native; -1 if no source |
| 4634 | * (xb) class name strings |
| 4635 | * (xb) method name strings |
| 4636 | * (xb) source file strings |
| 4637 | * |
| 4638 | * As with other DDM traffic, strings are sent as a 4-byte length |
| 4639 | * followed by UTF-16 data. |
| 4640 | * |
| 4641 | * 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] | 4642 | * can be (kMaxAllocRecordStackDepth * alloc_record_max_) unique strings in |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4643 | * each table, but in practice there should be far fewer. |
| 4644 | * |
| 4645 | * The chief reason for using a string table here is to keep the size of |
| 4646 | * the DDMS message to a minimum. This is partly to make the protocol |
| 4647 | * efficient, but also because we have to form the whole thing up all at |
| 4648 | * once in a memory buffer. |
| 4649 | * |
| 4650 | * We use separate string tables for class names, method names, and source |
| 4651 | * files to keep the indexes small. There will generally be no overlap |
| 4652 | * between the contents of these tables. |
| 4653 | */ |
| 4654 | jbyteArray Dbg::GetRecentAllocations() { |
Ian Rogers | cf7f191 | 2014-10-22 22:06:39 -0700 | [diff] [blame] | 4655 | if ((false)) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4656 | DumpRecentAllocations(); |
| 4657 | } |
| 4658 | |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4659 | Thread* self = Thread::Current(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4660 | std::vector<uint8_t> bytes; |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4661 | { |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4662 | MutexLock mu(self, *Locks::alloc_tracker_lock_); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4663 | // |
| 4664 | // Part 1: generate string tables. |
| 4665 | // |
| 4666 | StringTable class_names; |
| 4667 | StringTable method_names; |
| 4668 | StringTable filenames; |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4669 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4670 | const uint16_t capped_count = CappedAllocRecordCount(Dbg::alloc_record_count_); |
| 4671 | uint16_t count = capped_count; |
| 4672 | size_t idx = HeadIndex(); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4673 | while (count--) { |
| 4674 | AllocRecord* record = &recent_allocation_records_[idx]; |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 4675 | std::string temp; |
| 4676 | class_names.Add(record->Type()->GetDescriptor(&temp)); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4677 | for (size_t i = 0; i < kMaxAllocRecordStackDepth; i++) { |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4678 | mirror::ArtMethod* m = record->StackElement(i)->Method(); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4679 | if (m != nullptr) { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4680 | class_names.Add(m->GetDeclaringClassDescriptor()); |
| 4681 | method_names.Add(m->GetName()); |
| 4682 | filenames.Add(GetMethodSourceFile(m)); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4683 | } |
| 4684 | } |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4685 | |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4686 | idx = (idx + 1) & (alloc_record_max_ - 1); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4687 | } |
| 4688 | |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4689 | LOG(INFO) << "allocation records: " << capped_count; |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4690 | |
| 4691 | // |
| 4692 | // Part 2: Generate the output and store it in the buffer. |
| 4693 | // |
| 4694 | |
| 4695 | // (1b) message header len (to allow future expansion); includes itself |
| 4696 | // (1b) entry header len |
| 4697 | // (1b) stack frame len |
| 4698 | const int kMessageHeaderLen = 15; |
| 4699 | const int kEntryHeaderLen = 9; |
| 4700 | const int kStackFrameLen = 8; |
| 4701 | JDWP::Append1BE(bytes, kMessageHeaderLen); |
| 4702 | JDWP::Append1BE(bytes, kEntryHeaderLen); |
| 4703 | JDWP::Append1BE(bytes, kStackFrameLen); |
| 4704 | |
| 4705 | // (2b) number of entries |
| 4706 | // (4b) offset to string table from start of message |
| 4707 | // (2b) number of class name strings |
| 4708 | // (2b) number of method name strings |
| 4709 | // (2b) number of source file name strings |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4710 | JDWP::Append2BE(bytes, capped_count); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4711 | size_t string_table_offset = bytes.size(); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 4712 | JDWP::Append4BE(bytes, 0); // We'll patch this later... |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4713 | JDWP::Append2BE(bytes, class_names.Size()); |
| 4714 | JDWP::Append2BE(bytes, method_names.Size()); |
| 4715 | JDWP::Append2BE(bytes, filenames.Size()); |
| 4716 | |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4717 | idx = HeadIndex(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 4718 | std::string temp; |
Brian Carlstrom | 306db81 | 2014-09-05 13:01:41 -0700 | [diff] [blame] | 4719 | for (count = capped_count; count != 0; --count) { |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4720 | // For each entry: |
| 4721 | // (4b) total allocation size |
| 4722 | // (2b) thread id |
| 4723 | // (2b) allocated object's class name index |
| 4724 | // (1b) stack depth |
| 4725 | AllocRecord* record = &recent_allocation_records_[idx]; |
| 4726 | size_t stack_depth = record->GetDepth(); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 4727 | size_t allocated_object_class_name_index = |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 4728 | class_names.IndexOf(record->Type()->GetDescriptor(&temp)); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4729 | JDWP::Append4BE(bytes, record->ByteCount()); |
| 4730 | JDWP::Append2BE(bytes, record->ThinLockId()); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4731 | JDWP::Append2BE(bytes, allocated_object_class_name_index); |
| 4732 | JDWP::Append1BE(bytes, stack_depth); |
| 4733 | |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4734 | for (size_t stack_frame = 0; stack_frame < stack_depth; ++stack_frame) { |
| 4735 | // For each stack frame: |
| 4736 | // (2b) method's class name |
| 4737 | // (2b) method name |
| 4738 | // (2b) method source file |
| 4739 | // (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] | 4740 | mirror::ArtMethod* m = record->StackElement(stack_frame)->Method(); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 4741 | size_t class_name_index = class_names.IndexOf(m->GetDeclaringClassDescriptor()); |
| 4742 | size_t method_name_index = method_names.IndexOf(m->GetName()); |
| 4743 | size_t file_name_index = filenames.IndexOf(GetMethodSourceFile(m)); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4744 | JDWP::Append2BE(bytes, class_name_index); |
| 4745 | JDWP::Append2BE(bytes, method_name_index); |
| 4746 | JDWP::Append2BE(bytes, file_name_index); |
Hiroshi Yamauchi | b5a9e3d | 2014-06-09 12:11:20 -0700 | [diff] [blame] | 4747 | JDWP::Append2BE(bytes, record->StackElement(stack_frame)->LineNumber()); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4748 | } |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 4749 | idx = (idx + 1) & (alloc_record_max_ - 1); |
Mathieu Chartier | 46e811b | 2013-07-10 17:09:14 -0700 | [diff] [blame] | 4750 | } |
| 4751 | |
| 4752 | // (xb) class name strings |
| 4753 | // (xb) method name strings |
| 4754 | // (xb) source file strings |
| 4755 | JDWP::Set4BE(&bytes[string_table_offset], bytes.size()); |
| 4756 | class_names.WriteTo(bytes); |
| 4757 | method_names.WriteTo(bytes); |
| 4758 | filenames.WriteTo(bytes); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4759 | } |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 4760 | JNIEnv* env = self->GetJniEnv(); |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4761 | jbyteArray result = env->NewByteArray(bytes.size()); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 4762 | if (result != nullptr) { |
Elliott Hughes | 545a064 | 2011-11-08 19:10:03 -0800 | [diff] [blame] | 4763 | env->SetByteArrayRegion(result, 0, bytes.size(), reinterpret_cast<const jbyte*>(&bytes[0])); |
| 4764 | } |
| 4765 | return result; |
| 4766 | } |
| 4767 | |
Hiroshi Yamauchi | 0ec17d2 | 2014-07-07 13:07:08 -0700 | [diff] [blame] | 4768 | mirror::ArtMethod* DeoptimizationRequest::Method() const { |
| 4769 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 4770 | return soa.DecodeMethod(method_); |
| 4771 | } |
| 4772 | |
| 4773 | void DeoptimizationRequest::SetMethod(mirror::ArtMethod* m) { |
| 4774 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 4775 | method_ = soa.EncodeMethod(m); |
| 4776 | } |
| 4777 | |
Elliott Hughes | 872d4ec | 2011-10-21 17:07:15 -0700 | [diff] [blame] | 4778 | } // namespace art |