Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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 "compiler_driver.h" |
| 18 | |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 19 | #define ATRACE_TAG ATRACE_TAG_DALVIK |
| 20 | #include <utils/Trace.h> |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 21 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 22 | #include <unordered_set> |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 23 | #include <vector> |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 24 | #include <unistd.h> |
| 25 | |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 26 | #ifndef __APPLE__ |
| 27 | #include <malloc.h> // For mallinfo |
| 28 | #endif |
| 29 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 30 | #include "art_field-inl.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 31 | #include "art_method-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 32 | #include "base/stl_util.h" |
Vladimir Marko | 80afd02 | 2015-05-19 18:08:00 +0100 | [diff] [blame] | 33 | #include "base/time_utils.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 34 | #include "base/timing_logger.h" |
Vladimir Marko | 3481ba2 | 2015-04-13 12:22:36 +0100 | [diff] [blame] | 35 | #include "class_linker-inl.h" |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 36 | #include "compiled_class.h" |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 37 | #include "compiled_method.h" |
Nicolas Geoffray | b34f69a | 2014-03-07 15:28:39 +0000 | [diff] [blame] | 38 | #include "compiler.h" |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 39 | #include "compiler_driver-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 40 | #include "dex_compilation_unit.h" |
| 41 | #include "dex_file-inl.h" |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 42 | #include "dex/dex_to_dex_compiler.h" |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 43 | #include "dex/verification_results.h" |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 44 | #include "dex/verified_method.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 45 | #include "dex/quick/dex_file_method_inliner.h" |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 46 | #include "dex/quick/dex_file_to_method_inliner_map.h" |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 47 | #include "driver/compiler_options.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 48 | #include "jni_internal.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 49 | #include "object_lock.h" |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 50 | #include "profiler.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 51 | #include "runtime.h" |
| 52 | #include "gc/accounting/card_table-inl.h" |
| 53 | #include "gc/accounting/heap_bitmap.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 54 | #include "gc/space/image_space.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 55 | #include "gc/space/space.h" |
| 56 | #include "mirror/class_loader.h" |
| 57 | #include "mirror/class-inl.h" |
| 58 | #include "mirror/dex_cache-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 59 | #include "mirror/object-inl.h" |
| 60 | #include "mirror/object_array-inl.h" |
| 61 | #include "mirror/throwable.h" |
| 62 | #include "scoped_thread_state_change.h" |
| 63 | #include "ScopedLocalRef.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 64 | #include "handle_scope-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 65 | #include "thread.h" |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 66 | #include "thread_list.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 67 | #include "thread_pool.h" |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 68 | #include "trampolines/trampoline_compiler.h" |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 69 | #include "transaction.h" |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 70 | #include "utils/dex_cache_arrays_layout-inl.h" |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 71 | #include "utils/swap_space.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 72 | #include "verifier/method_verifier.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 73 | #include "verifier/method_verifier-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 74 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 75 | namespace art { |
| 76 | |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 77 | static constexpr bool kTimeCompileMethod = !kIsDebugBuild; |
| 78 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 79 | // Whether classes-to-compile and methods-to-compile are only applied to the boot image, or, when |
| 80 | // given, too all compilations. |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 81 | static constexpr bool kRestrictCompilationFiltersToImage = true; |
| 82 | |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 83 | // Print additional info during profile guided compilation. |
| 84 | static constexpr bool kDebugProfileGuidedCompilation = false; |
| 85 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 86 | static double Percentage(size_t x, size_t y) { |
| 87 | return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); |
| 88 | } |
| 89 | |
| 90 | static void DumpStat(size_t x, size_t y, const char* str) { |
| 91 | if (x == 0 && y == 0) { |
| 92 | return; |
| 93 | } |
Ian Rogers | e732ef1 | 2013-10-09 15:22:24 -0700 | [diff] [blame] | 94 | LOG(INFO) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 95 | } |
| 96 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 97 | class CompilerDriver::AOTCompilationStats { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 98 | public: |
| 99 | AOTCompilationStats() |
| 100 | : stats_lock_("AOT compilation statistics lock"), |
| 101 | types_in_dex_cache_(0), types_not_in_dex_cache_(0), |
| 102 | strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), |
| 103 | resolved_types_(0), unresolved_types_(0), |
| 104 | resolved_instance_fields_(0), unresolved_instance_fields_(0), |
| 105 | resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), |
| 106 | type_based_devirtualization_(0), |
| 107 | safe_casts_(0), not_safe_casts_(0) { |
| 108 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 109 | resolved_methods_[i] = 0; |
| 110 | unresolved_methods_[i] = 0; |
| 111 | virtual_made_direct_[i] = 0; |
| 112 | direct_calls_to_boot_[i] = 0; |
| 113 | direct_methods_to_boot_[i] = 0; |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | void Dump() { |
| 118 | DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); |
| 119 | DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); |
| 120 | DumpStat(resolved_types_, unresolved_types_, "types resolved"); |
| 121 | DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); |
| 122 | DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, |
| 123 | "static fields resolved"); |
| 124 | DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, |
| 125 | "static fields local to a class"); |
| 126 | DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); |
| 127 | // Note, the code below subtracts the stat value so that when added to the stat value we have |
| 128 | // 100% of samples. TODO: clean this up. |
| 129 | DumpStat(type_based_devirtualization_, |
| 130 | resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + |
| 131 | resolved_methods_[kInterface] + unresolved_methods_[kInterface] - |
| 132 | type_based_devirtualization_, |
| 133 | "virtual/interface calls made direct based on type information"); |
| 134 | |
| 135 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 136 | std::ostringstream oss; |
| 137 | oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; |
| 138 | DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); |
| 139 | if (virtual_made_direct_[i] > 0) { |
| 140 | std::ostringstream oss2; |
| 141 | oss2 << static_cast<InvokeType>(i) << " methods made direct"; |
| 142 | DumpStat(virtual_made_direct_[i], |
| 143 | resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], |
| 144 | oss2.str().c_str()); |
| 145 | } |
| 146 | if (direct_calls_to_boot_[i] > 0) { |
| 147 | std::ostringstream oss2; |
| 148 | oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; |
| 149 | DumpStat(direct_calls_to_boot_[i], |
| 150 | resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], |
| 151 | oss2.str().c_str()); |
| 152 | } |
| 153 | if (direct_methods_to_boot_[i] > 0) { |
| 154 | std::ostringstream oss2; |
| 155 | oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; |
| 156 | DumpStat(direct_methods_to_boot_[i], |
| 157 | resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], |
| 158 | oss2.str().c_str()); |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | // Allow lossy statistics in non-debug builds. |
| 164 | #ifndef NDEBUG |
| 165 | #define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) |
| 166 | #else |
| 167 | #define STATS_LOCK() |
| 168 | #endif |
| 169 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 170 | void TypeInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 171 | STATS_LOCK(); |
| 172 | types_in_dex_cache_++; |
| 173 | } |
| 174 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 175 | void TypeNotInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 176 | STATS_LOCK(); |
| 177 | types_not_in_dex_cache_++; |
| 178 | } |
| 179 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 180 | void StringInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 181 | STATS_LOCK(); |
| 182 | strings_in_dex_cache_++; |
| 183 | } |
| 184 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 185 | void StringNotInDexCache() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 186 | STATS_LOCK(); |
| 187 | strings_not_in_dex_cache_++; |
| 188 | } |
| 189 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 190 | void TypeDoesntNeedAccessCheck() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 191 | STATS_LOCK(); |
| 192 | resolved_types_++; |
| 193 | } |
| 194 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 195 | void TypeNeedsAccessCheck() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 196 | STATS_LOCK(); |
| 197 | unresolved_types_++; |
| 198 | } |
| 199 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 200 | void ResolvedInstanceField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 201 | STATS_LOCK(); |
| 202 | resolved_instance_fields_++; |
| 203 | } |
| 204 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 205 | void UnresolvedInstanceField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 206 | STATS_LOCK(); |
| 207 | unresolved_instance_fields_++; |
| 208 | } |
| 209 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 210 | void ResolvedLocalStaticField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 211 | STATS_LOCK(); |
| 212 | resolved_local_static_fields_++; |
| 213 | } |
| 214 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 215 | void ResolvedStaticField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 216 | STATS_LOCK(); |
| 217 | resolved_static_fields_++; |
| 218 | } |
| 219 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 220 | void UnresolvedStaticField() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 221 | STATS_LOCK(); |
| 222 | unresolved_static_fields_++; |
| 223 | } |
| 224 | |
| 225 | // Indicate that type information from the verifier led to devirtualization. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 226 | void PreciseTypeDevirtualization() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 227 | STATS_LOCK(); |
| 228 | type_based_devirtualization_++; |
| 229 | } |
| 230 | |
| 231 | // Indicate that a method of the given type was resolved at compile time. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 232 | void ResolvedMethod(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 233 | DCHECK_LE(type, kMaxInvokeType); |
| 234 | STATS_LOCK(); |
| 235 | resolved_methods_[type]++; |
| 236 | } |
| 237 | |
| 238 | // Indicate that a method of the given type was unresolved at compile time as it was in an |
| 239 | // unknown dex file. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 240 | void UnresolvedMethod(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 241 | DCHECK_LE(type, kMaxInvokeType); |
| 242 | STATS_LOCK(); |
| 243 | unresolved_methods_[type]++; |
| 244 | } |
| 245 | |
| 246 | // Indicate that a type of virtual method dispatch has been converted into a direct method |
| 247 | // dispatch. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 248 | void VirtualMadeDirect(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 249 | DCHECK(type == kVirtual || type == kInterface || type == kSuper); |
| 250 | STATS_LOCK(); |
| 251 | virtual_made_direct_[type]++; |
| 252 | } |
| 253 | |
| 254 | // Indicate that a method of the given type was able to call directly into boot. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 255 | void DirectCallsToBoot(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 256 | DCHECK_LE(type, kMaxInvokeType); |
| 257 | STATS_LOCK(); |
| 258 | direct_calls_to_boot_[type]++; |
| 259 | } |
| 260 | |
| 261 | // Indicate that a method of the given type was able to be resolved directly from boot. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 262 | void DirectMethodsToBoot(InvokeType type) REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 263 | DCHECK_LE(type, kMaxInvokeType); |
| 264 | STATS_LOCK(); |
| 265 | direct_methods_to_boot_[type]++; |
| 266 | } |
| 267 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 268 | void ProcessedInvoke(InvokeType type, int flags) REQUIRES(!stats_lock_) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 269 | STATS_LOCK(); |
| 270 | if (flags == 0) { |
| 271 | unresolved_methods_[type]++; |
| 272 | } else { |
| 273 | DCHECK_NE((flags & kFlagMethodResolved), 0); |
| 274 | resolved_methods_[type]++; |
| 275 | if ((flags & kFlagVirtualMadeDirect) != 0) { |
| 276 | virtual_made_direct_[type]++; |
| 277 | if ((flags & kFlagPreciseTypeDevirtualization) != 0) { |
| 278 | type_based_devirtualization_++; |
| 279 | } |
| 280 | } else { |
| 281 | DCHECK_EQ((flags & kFlagPreciseTypeDevirtualization), 0); |
| 282 | } |
| 283 | if ((flags & kFlagDirectCallToBoot) != 0) { |
| 284 | direct_calls_to_boot_[type]++; |
| 285 | } |
| 286 | if ((flags & kFlagDirectMethodToBoot) != 0) { |
| 287 | direct_methods_to_boot_[type]++; |
| 288 | } |
| 289 | } |
| 290 | } |
| 291 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 292 | // A check-cast could be eliminated due to verifier type analysis. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 293 | void SafeCast() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 294 | STATS_LOCK(); |
| 295 | safe_casts_++; |
| 296 | } |
| 297 | |
| 298 | // A check-cast couldn't be eliminated due to verifier type analysis. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 299 | void NotASafeCast() REQUIRES(!stats_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 300 | STATS_LOCK(); |
| 301 | not_safe_casts_++; |
| 302 | } |
| 303 | |
| 304 | private: |
| 305 | Mutex stats_lock_; |
| 306 | |
| 307 | size_t types_in_dex_cache_; |
| 308 | size_t types_not_in_dex_cache_; |
| 309 | |
| 310 | size_t strings_in_dex_cache_; |
| 311 | size_t strings_not_in_dex_cache_; |
| 312 | |
| 313 | size_t resolved_types_; |
| 314 | size_t unresolved_types_; |
| 315 | |
| 316 | size_t resolved_instance_fields_; |
| 317 | size_t unresolved_instance_fields_; |
| 318 | |
| 319 | size_t resolved_local_static_fields_; |
| 320 | size_t resolved_static_fields_; |
| 321 | size_t unresolved_static_fields_; |
| 322 | // Type based devirtualization for invoke interface and virtual. |
| 323 | size_t type_based_devirtualization_; |
| 324 | |
| 325 | size_t resolved_methods_[kMaxInvokeType + 1]; |
| 326 | size_t unresolved_methods_[kMaxInvokeType + 1]; |
| 327 | size_t virtual_made_direct_[kMaxInvokeType + 1]; |
| 328 | size_t direct_calls_to_boot_[kMaxInvokeType + 1]; |
| 329 | size_t direct_methods_to_boot_[kMaxInvokeType + 1]; |
| 330 | |
| 331 | size_t safe_casts_; |
| 332 | size_t not_safe_casts_; |
| 333 | |
| 334 | DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); |
| 335 | }; |
| 336 | |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 337 | CompilerDriver::CompilerDriver( |
| 338 | const CompilerOptions* compiler_options, |
| 339 | VerificationResults* verification_results, |
| 340 | DexFileToMethodInlinerMap* method_inliner_map, |
| 341 | Compiler::Kind compiler_kind, |
| 342 | InstructionSet instruction_set, |
| 343 | const InstructionSetFeatures* instruction_set_features, |
| 344 | bool boot_image, std::unordered_set<std::string>* image_classes, |
| 345 | std::unordered_set<std::string>* compiled_classes, |
| 346 | std::unordered_set<std::string>* compiled_methods, |
| 347 | size_t thread_count, bool dump_stats, bool dump_passes, |
| 348 | const std::string& dump_cfg_file_name, bool dump_cfg_append, |
| 349 | CumulativeLogger* timer, int swap_fd, |
| 350 | const std::string& profile_file, |
| 351 | const std::unordered_map<const DexFile*, const char*>* dex_to_oat_map) |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 352 | : compiler_options_(compiler_options), |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 353 | verification_results_(verification_results), |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 354 | method_inliner_map_(method_inliner_map), |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 355 | compiler_(Compiler::Create(this, compiler_kind)), |
Jeff Hao | 48699fb | 2015-04-06 14:21:37 -0700 | [diff] [blame] | 356 | compiler_kind_(compiler_kind), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 357 | instruction_set_(instruction_set), |
Dave Allison | 7020278 | 2013-10-22 17:52:19 -0700 | [diff] [blame] | 358 | instruction_set_features_(instruction_set_features), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 359 | freezing_constructor_lock_("freezing constructor lock"), |
| 360 | compiled_classes_lock_("compiled classes lock"), |
| 361 | compiled_methods_lock_("compiled method lock"), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 362 | compiled_methods_(MethodTable::key_compare()), |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 363 | non_relative_linker_patch_count_(0u), |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 364 | boot_image_(boot_image), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 365 | image_classes_(image_classes), |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 366 | classes_to_compile_(compiled_classes), |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 367 | methods_to_compile_(compiled_methods), |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 368 | had_hard_verifier_failure_(false), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 369 | thread_count_(thread_count), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 370 | stats_(new AOTCompilationStats), |
| 371 | dump_stats_(dump_stats), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 372 | dump_passes_(dump_passes), |
David Brazdil | 866c031 | 2015-01-13 21:21:31 +0000 | [diff] [blame] | 373 | dump_cfg_file_name_(dump_cfg_file_name), |
Calin Juravle | 87000a9 | 2015-08-24 15:34:44 +0100 | [diff] [blame] | 374 | dump_cfg_append_(dump_cfg_append), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 375 | timings_logger_(timer), |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 376 | compiler_context_(nullptr), |
Andreas Gampe | 57b3429 | 2015-01-14 15:45:59 -0800 | [diff] [blame] | 377 | support_boot_image_fixup_(instruction_set != kMips && instruction_set != kMips64), |
Vladimir Marko | d1eaf0d | 2015-10-29 12:18:29 +0000 | [diff] [blame] | 378 | dex_files_for_oat_file_(nullptr), |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 379 | dex_file_oat_filename_map_(dex_to_oat_map), |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 380 | compiled_method_storage_(swap_fd) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 381 | DCHECK(compiler_options_ != nullptr); |
| 382 | DCHECK(verification_results_ != nullptr); |
| 383 | DCHECK(method_inliner_map_ != nullptr); |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 384 | |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 385 | compiler_->Init(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 386 | |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 387 | CHECK_EQ(boot_image_, image_classes_.get() != nullptr); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 388 | |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 389 | // Read the profile file if one is provided. |
| 390 | if (!profile_file.empty()) { |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 391 | profile_compilation_info_.reset(new ProfileCompilationInfo(profile_file)); |
| 392 | LOG(INFO) << "Using profile data from file " << profile_file; |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 393 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 394 | } |
| 395 | |
| 396 | CompilerDriver::~CompilerDriver() { |
| 397 | Thread* self = Thread::Current(); |
| 398 | { |
| 399 | MutexLock mu(self, compiled_classes_lock_); |
| 400 | STLDeleteValues(&compiled_classes_); |
| 401 | } |
| 402 | { |
| 403 | MutexLock mu(self, compiled_methods_lock_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 404 | for (auto& pair : compiled_methods_) { |
| 405 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, pair.second); |
| 406 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 407 | } |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 408 | compiler_->UnInit(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 409 | } |
| 410 | |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 411 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 412 | #define CREATE_TRAMPOLINE(type, abi, offset) \ |
Andreas Gampe | af13ad9 | 2014-04-11 12:07:48 -0700 | [diff] [blame] | 413 | if (Is64BitInstructionSet(instruction_set_)) { \ |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 414 | return CreateTrampoline64(instruction_set_, abi, \ |
| 415 | type ## _ENTRYPOINT_OFFSET(8, offset)); \ |
| 416 | } else { \ |
| 417 | return CreateTrampoline32(instruction_set_, abi, \ |
| 418 | type ## _ENTRYPOINT_OFFSET(4, offset)); \ |
| 419 | } |
| 420 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 421 | const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 422 | CREATE_TRAMPOLINE(JNI, kJniAbi, pDlsymLookup) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 423 | } |
| 424 | |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 425 | const std::vector<uint8_t>* CompilerDriver::CreateQuickGenericJniTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 426 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickGenericJniTrampoline) |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 427 | } |
| 428 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 429 | const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 430 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickImtConflictTrampoline) |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 431 | } |
| 432 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 433 | const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 434 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickResolutionTrampoline) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 435 | } |
| 436 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 437 | const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 438 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickToInterpreterBridge) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 439 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 440 | #undef CREATE_TRAMPOLINE |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 441 | |
| 442 | void CompilerDriver::CompileAll(jobject class_loader, |
Brian Carlstrom | 4560248 | 2013-07-21 22:07:55 -0700 | [diff] [blame] | 443 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 444 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 445 | DCHECK(!Runtime::Current()->IsStarted()); |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 446 | std::unique_ptr<ThreadPool> thread_pool( |
| 447 | new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 448 | VLOG(compiler) << "Before precompile " << GetMemoryUsageString(false); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 449 | // Precompile: |
| 450 | // 1) Load image classes |
| 451 | // 2) Resolve all classes |
| 452 | // 3) Attempt to verify all classes |
| 453 | // 4) Attempt to initialize image classes, and trivially initialized classes |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 454 | PreCompile(class_loader, dex_files, thread_pool.get(), timings); |
Andreas Gampe | 740667a | 2015-09-15 17:55:06 -0700 | [diff] [blame] | 455 | // Compile: |
| 456 | // 1) Compile all classes and methods enabled for compilation. May fall back to dex-to-dex |
| 457 | // compilation. |
| 458 | if (!GetCompilerOptions().VerifyAtRuntime()) { |
| 459 | Compile(class_loader, dex_files, thread_pool.get(), timings); |
| 460 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 461 | if (dump_stats_) { |
| 462 | stats_->Dump(); |
| 463 | } |
| 464 | } |
| 465 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 466 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 467 | Thread* self, const CompilerDriver& driver, Handle<mirror::ClassLoader> class_loader, |
| 468 | const DexFile& dex_file, const DexFile::ClassDef& class_def) |
| 469 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 470 | auto* const runtime = Runtime::Current(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 471 | if (runtime->UseJit() || driver.GetCompilerOptions().VerifyAtRuntime()) { |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 472 | // Verify at runtime shouldn't dex to dex since we didn't resolve of verify. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 473 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 474 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 475 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 476 | ClassLinker* class_linker = runtime->GetClassLinker(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 477 | mirror::Class* klass = class_linker->FindClass(self, descriptor, class_loader); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 478 | if (klass == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 479 | CHECK(self->IsExceptionPending()); |
| 480 | self->ClearException(); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 481 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 482 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 483 | // DexToDex at the kOptimize level may introduce quickened opcodes, which replace symbolic |
| 484 | // references with actual offsets. We cannot re-verify such instructions. |
| 485 | // |
| 486 | // We store the verification information in the class status in the oat file, which the linker |
| 487 | // can validate (checksums) and use to skip load-time verification. It is thus safe to |
| 488 | // optimize when a class has been fully verified before. |
| 489 | if (klass->IsVerified()) { |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 490 | // Class is verified so we can enable DEX-to-DEX compilation for performance. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 491 | return optimizer::DexToDexCompilationLevel::kOptimize; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 492 | } else if (klass->IsCompileTimeVerified()) { |
| 493 | // Class verification has soft-failed. Anyway, ensure at least correctness. |
| 494 | DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 495 | return optimizer::DexToDexCompilationLevel::kRequired; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 496 | } else { |
| 497 | // Class verification has failed: do not run DEX-to-DEX compilation. |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 498 | return optimizer::DexToDexCompilationLevel::kDontDexToDexCompile; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | static optimizer::DexToDexCompilationLevel GetDexToDexCompilationLevel( |
| 503 | Thread* self, |
| 504 | const CompilerDriver& driver, |
| 505 | jobject jclass_loader, |
| 506 | const DexFile& dex_file, |
| 507 | const DexFile::ClassDef& class_def) { |
| 508 | ScopedObjectAccess soa(self); |
| 509 | StackHandleScope<1> hs(soa.Self()); |
| 510 | Handle<mirror::ClassLoader> class_loader( |
| 511 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 512 | return GetDexToDexCompilationLevel(self, driver, class_loader, dex_file, class_def); |
| 513 | } |
| 514 | |
| 515 | // Does the runtime for the InstructionSet provide an implementation returned by |
| 516 | // GetQuickGenericJniStub allowing down calls that aren't compiled using a JNI compiler? |
| 517 | static bool InstructionSetHasGenericJniStub(InstructionSet isa) { |
| 518 | switch (isa) { |
| 519 | case kArm: |
| 520 | case kArm64: |
| 521 | case kThumb2: |
| 522 | case kMips: |
| 523 | case kMips64: |
| 524 | case kX86: |
| 525 | case kX86_64: return true; |
| 526 | default: return false; |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | static void CompileMethod(Thread* self, |
| 531 | CompilerDriver* driver, |
| 532 | const DexFile::CodeItem* code_item, |
| 533 | uint32_t access_flags, |
| 534 | InvokeType invoke_type, |
| 535 | uint16_t class_def_idx, |
| 536 | uint32_t method_idx, |
| 537 | jobject class_loader, |
| 538 | const DexFile& dex_file, |
| 539 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 540 | bool compilation_enabled, |
| 541 | Handle<mirror::DexCache> dex_cache) |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 542 | REQUIRES(!driver->compiled_methods_lock_) { |
| 543 | DCHECK(driver != nullptr); |
| 544 | CompiledMethod* compiled_method = nullptr; |
| 545 | uint64_t start_ns = kTimeCompileMethod ? NanoTime() : 0; |
| 546 | MethodReference method_ref(&dex_file, method_idx); |
| 547 | |
| 548 | if ((access_flags & kAccNative) != 0) { |
| 549 | // Are we interpreting only and have support for generic JNI down calls? |
| 550 | if (!driver->GetCompilerOptions().IsCompilationEnabled() && |
| 551 | InstructionSetHasGenericJniStub(driver->GetInstructionSet())) { |
| 552 | // Leaving this empty will trigger the generic JNI version |
| 553 | } else { |
| 554 | compiled_method = driver->GetCompiler()->JniCompile(access_flags, method_idx, dex_file); |
| 555 | CHECK(compiled_method != nullptr); |
| 556 | } |
| 557 | } else if ((access_flags & kAccAbstract) != 0) { |
| 558 | // Abstract methods don't have code. |
Nicolas Geoffray | d28b969 | 2015-11-04 14:36:55 +0000 | [diff] [blame] | 559 | } else { |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 560 | const VerifiedMethod* verified_method = |
| 561 | driver->GetVerificationResults()->GetVerifiedMethod(method_ref); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 562 | bool compile = compilation_enabled && |
| 563 | // Basic checks, e.g., not <clinit>. |
| 564 | driver->GetVerificationResults() |
| 565 | ->IsCandidateForCompilation(method_ref, access_flags) && |
| 566 | // Did not fail to create VerifiedMethod metadata. |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 567 | verified_method != nullptr && |
| 568 | // Do not have failures that should punt to the interpreter. |
| 569 | !verified_method->HasRuntimeThrow() && |
| 570 | (verified_method->GetEncounteredVerificationFailures() & |
Andreas Gampe | a727e37 | 2015-08-25 09:22:37 -0700 | [diff] [blame] | 571 | (verifier::VERIFY_ERROR_FORCE_INTERPRETER | verifier::VERIFY_ERROR_LOCKING)) == 0 && |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 572 | // Is eligable for compilation by methods-to-compile filter. |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 573 | driver->IsMethodToCompile(method_ref) && |
| 574 | driver->ShouldCompileBasedOnProfile(method_ref); |
| 575 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 576 | if (compile) { |
| 577 | // NOTE: if compiler declines to compile this method, it will return null. |
| 578 | compiled_method = driver->GetCompiler()->Compile(code_item, access_flags, invoke_type, |
| 579 | class_def_idx, method_idx, class_loader, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 580 | dex_file, dex_cache); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 581 | } |
| 582 | if (compiled_method == nullptr && |
| 583 | dex_to_dex_compilation_level != optimizer::DexToDexCompilationLevel::kDontDexToDexCompile) { |
| 584 | // TODO: add a command-line option to disable DEX-to-DEX compilation ? |
| 585 | // Do not optimize if a VerifiedMethod is missing. SafeCast elision, for example, relies on |
| 586 | // it. |
| 587 | compiled_method = optimizer::ArtCompileDEX( |
| 588 | driver, |
| 589 | code_item, |
| 590 | access_flags, |
| 591 | invoke_type, |
| 592 | class_def_idx, |
| 593 | method_idx, |
| 594 | class_loader, |
| 595 | dex_file, |
Andreas Gampe | 0760a81 | 2015-08-26 17:12:51 -0700 | [diff] [blame] | 596 | (verified_method != nullptr) |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 597 | ? dex_to_dex_compilation_level |
| 598 | : optimizer::DexToDexCompilationLevel::kRequired); |
| 599 | } |
| 600 | } |
| 601 | if (kTimeCompileMethod) { |
| 602 | uint64_t duration_ns = NanoTime() - start_ns; |
| 603 | if (duration_ns > MsToNs(driver->GetCompiler()->GetMaximumCompilationTimeBeforeWarning())) { |
| 604 | LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) |
| 605 | << " took " << PrettyDuration(duration_ns); |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | if (compiled_method != nullptr) { |
| 610 | // Count non-relative linker patches. |
| 611 | size_t non_relative_linker_patch_count = 0u; |
| 612 | for (const LinkerPatch& patch : compiled_method->GetPatches()) { |
| 613 | if (!patch.IsPcRelative()) { |
| 614 | ++non_relative_linker_patch_count; |
| 615 | } |
| 616 | } |
| 617 | bool compile_pic = driver->GetCompilerOptions().GetCompilePic(); // Off by default |
| 618 | // When compiling with PIC, there should be zero non-relative linker patches |
| 619 | CHECK(!compile_pic || non_relative_linker_patch_count == 0u); |
| 620 | |
| 621 | driver->AddCompiledMethod(method_ref, compiled_method, non_relative_linker_patch_count); |
| 622 | } |
| 623 | |
| 624 | // Done compiling, delete the verified method to reduce native memory usage. Do not delete in |
| 625 | // optimizing compiler, which may need the verified method again for inlining. |
| 626 | if (driver->GetCompilerKind() != Compiler::kOptimizing) { |
| 627 | driver->GetVerificationResults()->RemoveVerifiedMethod(method_ref); |
| 628 | } |
| 629 | |
| 630 | if (self->IsExceptionPending()) { |
| 631 | ScopedObjectAccess soa(self); |
| 632 | LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" |
| 633 | << self->GetException()->Dump(); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 634 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 635 | } |
| 636 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 637 | void CompilerDriver::CompileOne(Thread* self, ArtMethod* method, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 638 | DCHECK(!Runtime::Current()->IsStarted()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 639 | jobject jclass_loader; |
| 640 | const DexFile* dex_file; |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 641 | uint16_t class_def_idx; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 642 | uint32_t method_idx = method->GetDexMethodIndex(); |
| 643 | uint32_t access_flags = method->GetAccessFlags(); |
| 644 | InvokeType invoke_type = method->GetInvokeType(); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 645 | StackHandleScope<1> hs(self); |
| 646 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(method->GetDexCache())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 647 | { |
| 648 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 649 | ScopedLocalRef<jobject> local_class_loader( |
| 650 | soa.Env(), soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 651 | jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); |
| 652 | // Find the dex_file |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 653 | dex_file = method->GetDexFile(); |
| 654 | class_def_idx = method->GetClassDefIndex(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 655 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 656 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 657 | |
| 658 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 659 | ScopedThreadSuspension sts(self, kNative); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 660 | |
| 661 | std::vector<const DexFile*> dex_files; |
| 662 | dex_files.push_back(dex_file); |
| 663 | |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 664 | std::unique_ptr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 665 | PreCompile(jclass_loader, dex_files, thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 666 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 667 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 668 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 669 | GetDexToDexCompilationLevel(self, |
| 670 | *this, |
| 671 | jclass_loader, |
| 672 | *dex_file, |
| 673 | dex_file->GetClassDef(class_def_idx)); |
| 674 | |
| 675 | CompileMethod(self, |
| 676 | this, |
| 677 | code_item, |
| 678 | access_flags, |
| 679 | invoke_type, |
| 680 | class_def_idx, |
| 681 | method_idx, |
| 682 | jclass_loader, |
| 683 | *dex_file, |
| 684 | dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 685 | true, |
| 686 | dex_cache); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 687 | |
| 688 | self->GetJniEnv()->DeleteGlobalRef(jclass_loader); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 689 | } |
| 690 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 691 | void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 692 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 693 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 694 | const DexFile* dex_file = dex_files[i]; |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 695 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 696 | ResolveDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 697 | } |
| 698 | } |
| 699 | |
| 700 | void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 701 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 702 | LoadImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 703 | VLOG(compiler) << "LoadImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 704 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 705 | const bool verification_enabled = compiler_options_->IsVerificationEnabled(); |
| 706 | const bool never_verify = compiler_options_->NeverVerify(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 707 | |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 708 | // We need to resolve for never_verify since it needs to run dex to dex to add the |
| 709 | // RETURN_VOID_NO_BARRIER. |
| 710 | if (never_verify || verification_enabled) { |
| 711 | Resolve(class_loader, dex_files, thread_pool, timings); |
| 712 | VLOG(compiler) << "Resolve: " << GetMemoryUsageString(false); |
| 713 | } |
| 714 | |
| 715 | if (never_verify) { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 716 | VLOG(compiler) << "Verify none mode specified, skipping verification."; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 717 | SetVerified(class_loader, dex_files, thread_pool, timings); |
Mathieu Chartier | e86deef | 2015-03-19 13:43:37 -0700 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | if (!verification_enabled) { |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 721 | return; |
| 722 | } |
| 723 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 724 | Verify(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 725 | VLOG(compiler) << "Verify: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 726 | |
Andreas Gampe | 6cf49e5 | 2015-03-05 13:08:45 -0800 | [diff] [blame] | 727 | if (had_hard_verifier_failure_ && GetCompilerOptions().AbortOnHardVerifierFailure()) { |
| 728 | LOG(FATAL) << "Had a hard failure verifying all classes, and was asked to abort in such " |
| 729 | << "situations. Please check the log."; |
| 730 | } |
| 731 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 732 | InitializeClasses(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 733 | VLOG(compiler) << "InitializeClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 734 | |
| 735 | UpdateImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 736 | VLOG(compiler) << "UpdateImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 737 | } |
| 738 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 739 | bool CompilerDriver::IsImageClass(const char* descriptor) const { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 740 | if (!IsBootImage()) { |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 741 | // NOTE: Currently unreachable, all callers check IsImage(). |
| 742 | return false; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 743 | } else { |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 744 | return image_classes_->find(descriptor) != image_classes_->end(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 745 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 746 | } |
| 747 | |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 748 | bool CompilerDriver::IsClassToCompile(const char* descriptor) const { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 749 | if (kRestrictCompilationFiltersToImage && !IsBootImage()) { |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 750 | return true; |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 751 | } |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 752 | |
| 753 | if (classes_to_compile_ == nullptr) { |
| 754 | return true; |
| 755 | } |
| 756 | return classes_to_compile_->find(descriptor) != classes_to_compile_->end(); |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 757 | } |
| 758 | |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 759 | bool CompilerDriver::IsMethodToCompile(const MethodReference& method_ref) const { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 760 | if (kRestrictCompilationFiltersToImage && !IsBootImage()) { |
Andreas Gampe | 70bef0d | 2015-04-15 02:37:28 -0700 | [diff] [blame] | 761 | return true; |
| 762 | } |
| 763 | |
| 764 | if (methods_to_compile_ == nullptr) { |
| 765 | return true; |
| 766 | } |
| 767 | |
| 768 | std::string tmp = PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file, true); |
| 769 | return methods_to_compile_->find(tmp.c_str()) != methods_to_compile_->end(); |
| 770 | } |
| 771 | |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 772 | bool CompilerDriver::ShouldCompileBasedOnProfile(const MethodReference& method_ref) const { |
| 773 | if (profile_compilation_info_ == nullptr) { |
| 774 | // If we miss profile information it means that we don't do a profile guided compilation. |
| 775 | // Return true, and let the other filters decide if the method should be compiled. |
| 776 | return true; |
| 777 | } |
| 778 | bool result = profile_compilation_info_->ContainsMethod(method_ref); |
| 779 | |
| 780 | if (kDebugProfileGuidedCompilation) { |
| 781 | LOG(INFO) << "[ProfileGuidedCompilation] " |
| 782 | << (result ? "Compiled" : "Skipped") << " method:" |
| 783 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file, true); |
| 784 | } |
| 785 | return result; |
| 786 | } |
| 787 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 788 | class ResolveCatchBlockExceptionsClassVisitor : public ClassVisitor { |
| 789 | public: |
| 790 | ResolveCatchBlockExceptionsClassVisitor( |
| 791 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve) |
| 792 | : exceptions_to_resolve_(exceptions_to_resolve) {} |
| 793 | |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 794 | virtual bool Visit(mirror::Class* c) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 795 | const auto pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 796 | for (auto& m : c->GetMethods(pointer_size)) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 797 | ResolveExceptionsForMethod(&m, pointer_size); |
Mathieu Chartier | e4275c0 | 2015-08-06 15:34:15 -0700 | [diff] [blame] | 798 | } |
| 799 | return true; |
| 800 | } |
| 801 | |
| 802 | private: |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 803 | void ResolveExceptionsForMethod(ArtMethod* method_handle, size_t pointer_size) |
| 804 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 805 | const DexFile::CodeItem* code_item = method_handle->GetCodeItem(); |
| 806 | if (code_item == nullptr) { |
| 807 | return; // native or abstract method |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 808 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 809 | if (code_item->tries_size_ == 0) { |
| 810 | return; // nothing to process |
| 811 | } |
| 812 | const uint8_t* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); |
| 813 | size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 814 | for (size_t i = 0; i < num_encoded_catch_handlers; i++) { |
| 815 | int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); |
| 816 | bool has_catch_all = false; |
| 817 | if (encoded_catch_handler_size <= 0) { |
| 818 | encoded_catch_handler_size = -encoded_catch_handler_size; |
| 819 | has_catch_all = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 820 | } |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 821 | for (int32_t j = 0; j < encoded_catch_handler_size; j++) { |
| 822 | uint16_t encoded_catch_handler_handlers_type_idx = |
| 823 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 824 | // Add to set of types to resolve if not already in the dex cache resolved types |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 825 | if (!method_handle->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx, |
| 826 | pointer_size)) { |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 827 | exceptions_to_resolve_.emplace(encoded_catch_handler_handlers_type_idx, |
| 828 | method_handle->GetDexFile()); |
| 829 | } |
| 830 | // ignore address associated with catch handler |
| 831 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 832 | } |
| 833 | if (has_catch_all) { |
| 834 | // ignore catch all address |
| 835 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 836 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 837 | } |
| 838 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 839 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 840 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve_; |
| 841 | }; |
| 842 | |
| 843 | class RecordImageClassesVisitor : public ClassVisitor { |
| 844 | public: |
| 845 | explicit RecordImageClassesVisitor(std::unordered_set<std::string>* image_classes) |
| 846 | : image_classes_(image_classes) {} |
| 847 | |
| 848 | bool Visit(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 849 | std::string temp; |
| 850 | image_classes_->insert(klass->GetDescriptor(&temp)); |
| 851 | return true; |
| 852 | } |
| 853 | |
| 854 | private: |
| 855 | std::unordered_set<std::string>* const image_classes_; |
| 856 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 857 | |
| 858 | // Make a list of descriptors for classes to include in the image |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 859 | void CompilerDriver::LoadImageClasses(TimingLogger* timings) { |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 860 | CHECK(timings != nullptr); |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 861 | if (!IsBootImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 862 | return; |
| 863 | } |
| 864 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 865 | TimingLogger::ScopedTiming t("LoadImageClasses", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 866 | // Make a first class to load all classes explicitly listed in the file |
| 867 | Thread* self = Thread::Current(); |
| 868 | ScopedObjectAccess soa(self); |
| 869 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 870 | CHECK(image_classes_.get() != nullptr); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 871 | for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 872 | const std::string& descriptor(*it); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 873 | StackHandleScope<1> hs(self); |
| 874 | Handle<mirror::Class> klass( |
| 875 | hs.NewHandle(class_linker->FindSystemClass(self, descriptor.c_str()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 876 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 877 | VLOG(compiler) << "Failed to find class " << descriptor; |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 878 | image_classes_->erase(it++); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 879 | self->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 880 | } else { |
| 881 | ++it; |
| 882 | } |
| 883 | } |
| 884 | |
| 885 | // Resolve exception classes referenced by the loaded classes. The catch logic assumes |
| 886 | // exceptions are resolved by the verifier when there is a catch block in an interested method. |
| 887 | // Do this here so that exception classes appear to have been specified image classes. |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 888 | std::set<std::pair<uint16_t, const DexFile*>> unresolved_exception_types; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 889 | StackHandleScope<1> hs(self); |
| 890 | Handle<mirror::Class> java_lang_Throwable( |
| 891 | hs.NewHandle(class_linker->FindSystemClass(self, "Ljava/lang/Throwable;"))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 892 | do { |
| 893 | unresolved_exception_types.clear(); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 894 | ResolveCatchBlockExceptionsClassVisitor visitor(unresolved_exception_types); |
| 895 | class_linker->VisitClasses(&visitor); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 896 | for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { |
| 897 | uint16_t exception_type_idx = exception_type.first; |
| 898 | const DexFile* dex_file = exception_type.second; |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 899 | StackHandleScope<2> hs2(self); |
Mathieu Chartier | d57d454 | 2015-10-14 10:55:30 -0700 | [diff] [blame] | 900 | Handle<mirror::DexCache> dex_cache(hs2.NewHandle(class_linker->RegisterDexFile( |
| 901 | *dex_file, |
| 902 | Runtime::Current()->GetLinearAlloc()))); |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 903 | Handle<mirror::Class> klass(hs2.NewHandle( |
Mathieu Chartier | 9865bde | 2015-12-21 09:58:16 -0800 | [diff] [blame] | 904 | class_linker->ResolveType(*dex_file, |
| 905 | exception_type_idx, |
| 906 | dex_cache, |
| 907 | ScopedNullHandle<mirror::ClassLoader>()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 908 | if (klass.Get() == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 909 | const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); |
| 910 | const char* descriptor = dex_file->GetTypeDescriptor(type_id); |
| 911 | LOG(FATAL) << "Failed to resolve class " << descriptor; |
| 912 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 913 | DCHECK(java_lang_Throwable->IsAssignableFrom(klass.Get())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 914 | } |
| 915 | // Resolving exceptions may load classes that reference more exceptions, iterate until no |
| 916 | // more are found |
| 917 | } while (!unresolved_exception_types.empty()); |
| 918 | |
| 919 | // We walk the roots looking for classes so that we'll pick up the |
| 920 | // above classes plus any classes them depend on such super |
| 921 | // classes, interfaces, and the required ClassLinker roots. |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 922 | RecordImageClassesVisitor visitor(image_classes_.get()); |
| 923 | class_linker->VisitClasses(&visitor); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 924 | |
| 925 | CHECK_NE(image_classes_->size(), 0U); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 926 | } |
| 927 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 928 | static void MaybeAddToImageClasses(Handle<mirror::Class> c, |
| 929 | std::unordered_set<std::string>* image_classes) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 930 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 931 | Thread* self = Thread::Current(); |
| 932 | StackHandleScope<1> hs(self); |
| 933 | // Make a copy of the handle so that we don't clobber it doing Assign. |
Andreas Gampe | 5a4b8a2 | 2014-09-11 08:30:08 -0700 | [diff] [blame] | 934 | MutableHandle<mirror::Class> klass(hs.NewHandle(c.Get())); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 935 | std::string temp; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 936 | const size_t pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 937 | while (!klass->IsObjectClass()) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 938 | const char* descriptor = klass->GetDescriptor(&temp); |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 939 | std::pair<std::unordered_set<std::string>::iterator, bool> result = |
| 940 | image_classes->insert(descriptor); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 941 | if (!result.second) { // Previously inserted. |
| 942 | break; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 943 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 944 | VLOG(compiler) << "Adding " << descriptor << " to image classes"; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 945 | for (size_t i = 0; i < klass->NumDirectInterfaces(); ++i) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 946 | StackHandleScope<1> hs2(self); |
| 947 | MaybeAddToImageClasses(hs2.NewHandle(mirror::Class::GetDirectInterface(self, klass, i)), |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 948 | image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 949 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 950 | for (auto& m : c->GetVirtualMethods(pointer_size)) { |
| 951 | if (m.IsMiranda() || (true)) { |
| 952 | StackHandleScope<1> hs2(self); |
| 953 | MaybeAddToImageClasses(hs2.NewHandle(m.GetDeclaringClass()), image_classes); |
| 954 | } |
| 955 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 956 | if (klass->IsArrayClass()) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 957 | StackHandleScope<1> hs2(self); |
| 958 | MaybeAddToImageClasses(hs2.NewHandle(klass->GetComponentType()), image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 959 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 960 | klass.Assign(klass->GetSuperClass()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 961 | } |
| 962 | } |
| 963 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 964 | // Keeps all the data for the update together. Also doubles as the reference visitor. |
| 965 | // Note: we can use object pointers because we suspend all threads. |
| 966 | class ClinitImageUpdate { |
| 967 | public: |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 968 | static ClinitImageUpdate* Create(std::unordered_set<std::string>* image_class_descriptors, |
| 969 | Thread* self, ClassLinker* linker, std::string* error_msg) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 970 | std::unique_ptr<ClinitImageUpdate> res(new ClinitImageUpdate(image_class_descriptors, self, |
| 971 | linker)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 972 | if (res->dex_cache_class_ == nullptr) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 973 | *error_msg = "Could not find DexCache class."; |
| 974 | return nullptr; |
| 975 | } |
| 976 | |
| 977 | return res.release(); |
| 978 | } |
| 979 | |
| 980 | ~ClinitImageUpdate() { |
| 981 | // Allow others to suspend again. |
| 982 | self_->EndAssertNoThreadSuspension(old_cause_); |
| 983 | } |
| 984 | |
| 985 | // Visitor for VisitReferences. |
| 986 | void operator()(mirror::Object* object, MemberOffset field_offset, bool /* is_static */) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 987 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 988 | mirror::Object* ref = object->GetFieldObject<mirror::Object>(field_offset); |
| 989 | if (ref != nullptr) { |
| 990 | VisitClinitClassesObject(ref); |
| 991 | } |
| 992 | } |
| 993 | |
| 994 | // java.lang.Reference visitor for VisitReferences. |
Mathieu Chartier | da7c650 | 2015-07-23 16:01:26 -0700 | [diff] [blame] | 995 | void operator()(mirror::Class* klass ATTRIBUTE_UNUSED, mirror::Reference* ref ATTRIBUTE_UNUSED) |
| 996 | const {} |
| 997 | |
| 998 | // Ignore class native roots. |
| 999 | void VisitRootIfNonNull(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) |
| 1000 | const {} |
| 1001 | void VisitRoot(mirror::CompressedReference<mirror::Object>* root ATTRIBUTE_UNUSED) const {} |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1002 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1003 | void Walk() SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1004 | // Use the initial classes as roots for a search. |
| 1005 | for (mirror::Class* klass_root : image_classes_) { |
| 1006 | VisitClinitClassesObject(klass_root); |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | private: |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1011 | class FindImageClassesVisitor : public ClassVisitor { |
| 1012 | public: |
| 1013 | explicit FindImageClassesVisitor(ClinitImageUpdate* data) : data_(data) {} |
| 1014 | |
| 1015 | bool Visit(mirror::Class* klass) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| 1016 | std::string temp; |
| 1017 | const char* name = klass->GetDescriptor(&temp); |
| 1018 | if (data_->image_class_descriptors_->find(name) != data_->image_class_descriptors_->end()) { |
| 1019 | data_->image_classes_.push_back(klass); |
| 1020 | } else { |
| 1021 | // Check whether it is initialized and has a clinit. They must be kept, too. |
| 1022 | if (klass->IsInitialized() && klass->FindClassInitializer( |
| 1023 | Runtime::Current()->GetClassLinker()->GetImagePointerSize()) != nullptr) { |
| 1024 | data_->image_classes_.push_back(klass); |
| 1025 | } |
| 1026 | } |
| 1027 | return true; |
| 1028 | } |
| 1029 | |
| 1030 | private: |
| 1031 | ClinitImageUpdate* const data_; |
| 1032 | }; |
| 1033 | |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1034 | ClinitImageUpdate(std::unordered_set<std::string>* image_class_descriptors, Thread* self, |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1035 | ClassLinker* linker) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1036 | SHARED_REQUIRES(Locks::mutator_lock_) : |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1037 | image_class_descriptors_(image_class_descriptors), self_(self) { |
| 1038 | CHECK(linker != nullptr); |
| 1039 | CHECK(image_class_descriptors != nullptr); |
| 1040 | |
| 1041 | // Make sure nobody interferes with us. |
| 1042 | old_cause_ = self->StartAssertNoThreadSuspension("Boot image closure"); |
| 1043 | |
| 1044 | // Find the interesting classes. |
Andreas Gampe | dc8b63c | 2014-12-02 14:39:52 -0800 | [diff] [blame] | 1045 | dex_cache_class_ = linker->LookupClass(self, "Ljava/lang/DexCache;", |
| 1046 | ComputeModifiedUtf8Hash("Ljava/lang/DexCache;"), nullptr); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1047 | |
| 1048 | // Find all the already-marked classes. |
| 1049 | WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1050 | FindImageClassesVisitor visitor(this); |
| 1051 | linker->VisitClasses(&visitor); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1052 | } |
| 1053 | |
| 1054 | void VisitClinitClassesObject(mirror::Object* object) const |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1055 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1056 | DCHECK(object != nullptr); |
| 1057 | if (marked_objects_.find(object) != marked_objects_.end()) { |
| 1058 | // Already processed. |
| 1059 | return; |
| 1060 | } |
| 1061 | |
| 1062 | // Mark it. |
| 1063 | marked_objects_.insert(object); |
| 1064 | |
| 1065 | if (object->IsClass()) { |
| 1066 | // If it is a class, add it. |
| 1067 | StackHandleScope<1> hs(self_); |
| 1068 | MaybeAddToImageClasses(hs.NewHandle(object->AsClass()), image_class_descriptors_); |
| 1069 | } else { |
| 1070 | // Else visit the object's class. |
| 1071 | VisitClinitClassesObject(object->GetClass()); |
| 1072 | } |
| 1073 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1074 | // If it is not a DexCache, visit all references. |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1075 | mirror::Class* klass = object->GetClass(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1076 | if (klass != dex_cache_class_) { |
Mathieu Chartier | 059ef3d | 2015-08-18 13:54:21 -0700 | [diff] [blame] | 1077 | object->VisitReferences(*this, *this); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1078 | } |
| 1079 | } |
| 1080 | |
| 1081 | mutable std::unordered_set<mirror::Object*> marked_objects_; |
Andreas Gampe | b1fcead | 2015-04-20 18:53:51 -0700 | [diff] [blame] | 1082 | std::unordered_set<std::string>* const image_class_descriptors_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1083 | std::vector<mirror::Class*> image_classes_; |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1084 | const mirror::Class* dex_cache_class_; |
| 1085 | Thread* const self_; |
| 1086 | const char* old_cause_; |
| 1087 | |
| 1088 | DISALLOW_COPY_AND_ASSIGN(ClinitImageUpdate); |
| 1089 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1090 | |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1091 | void CompilerDriver::UpdateImageClasses(TimingLogger* timings) { |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1092 | if (IsBootImage()) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1093 | TimingLogger::ScopedTiming t("UpdateImageClasses", timings); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1094 | |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1095 | Runtime* runtime = Runtime::Current(); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1096 | |
| 1097 | // Suspend all threads. |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1098 | ScopedSuspendAll ssa(__FUNCTION__); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1099 | |
| 1100 | std::string error_msg; |
| 1101 | std::unique_ptr<ClinitImageUpdate> update(ClinitImageUpdate::Create(image_classes_.get(), |
| 1102 | Thread::Current(), |
Mathieu Chartier | 4f55e22 | 2015-09-04 13:26:21 -0700 | [diff] [blame] | 1103 | runtime->GetClassLinker(), |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 1104 | &error_msg)); |
| 1105 | CHECK(update.get() != nullptr) << error_msg; // TODO: Soft failure? |
| 1106 | |
| 1107 | // Do the marking. |
| 1108 | update->Walk(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1109 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1110 | } |
| 1111 | |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 1112 | bool CompilerDriver::CanAssumeClassIsLoaded(mirror::Class* klass) { |
| 1113 | Runtime* runtime = Runtime::Current(); |
| 1114 | if (!runtime->IsAotCompiler()) { |
| 1115 | DCHECK(runtime->UseJit()); |
| 1116 | // Having the klass reference here implies that the klass is already loaded. |
| 1117 | return true; |
| 1118 | } |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1119 | if (!IsBootImage()) { |
Vladimir Marko | 07785bb | 2015-06-15 18:52:54 +0100 | [diff] [blame] | 1120 | // Assume loaded only if klass is in the boot image. App classes cannot be assumed |
| 1121 | // loaded because we don't even know what class loader will be used to load them. |
| 1122 | bool class_in_image = runtime->GetHeap()->FindSpaceFromObject(klass, false)->IsImageSpace(); |
| 1123 | return class_in_image; |
| 1124 | } |
| 1125 | std::string temp; |
| 1126 | const char* descriptor = klass->GetDescriptor(&temp); |
| 1127 | return IsImageClass(descriptor); |
| 1128 | } |
| 1129 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1130 | bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { |
Nicolas Geoffray | 42e372e | 2015-11-24 15:48:56 +0000 | [diff] [blame] | 1131 | bool result = false; |
| 1132 | if ((IsBootImage() && |
| 1133 | IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) || |
| 1134 | Runtime::Current()->UseJit()) { |
| 1135 | ScopedObjectAccess soa(Thread::Current()); |
| 1136 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1137 | soa.Self(), dex_file, false); |
| 1138 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1139 | result = (resolved_class != nullptr); |
| 1140 | } |
| 1141 | |
| 1142 | if (result) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1143 | stats_->TypeInDexCache(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1144 | } else { |
| 1145 | stats_->TypeNotInDexCache(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1146 | } |
Nicolas Geoffray | 42e372e | 2015-11-24 15:48:56 +0000 | [diff] [blame] | 1147 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1148 | } |
| 1149 | |
| 1150 | bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, |
| 1151 | uint32_t string_idx) { |
| 1152 | // See also Compiler::ResolveDexFile |
| 1153 | |
| 1154 | bool result = false; |
Nicolas Geoffray | 917d016 | 2015-11-24 18:25:35 +0000 | [diff] [blame] | 1155 | if (IsBootImage() || Runtime::Current()->UseJit()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1156 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1157 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1158 | ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
| 1159 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 1160 | soa.Self(), dex_file, false))); |
Nicolas Geoffray | 917d016 | 2015-11-24 18:25:35 +0000 | [diff] [blame] | 1161 | if (IsBootImage()) { |
| 1162 | // We resolve all const-string strings when building for the image. |
| 1163 | class_linker->ResolveString(dex_file, string_idx, dex_cache); |
| 1164 | result = true; |
| 1165 | } else { |
| 1166 | // Just check whether the dex cache already has the string. |
| 1167 | DCHECK(Runtime::Current()->UseJit()); |
| 1168 | result = (dex_cache->GetResolvedString(string_idx) != nullptr); |
| 1169 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1170 | } |
| 1171 | if (result) { |
| 1172 | stats_->StringInDexCache(); |
| 1173 | } else { |
| 1174 | stats_->StringNotInDexCache(); |
| 1175 | } |
| 1176 | return result; |
| 1177 | } |
| 1178 | |
| 1179 | bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, |
| 1180 | uint32_t type_idx, |
| 1181 | bool* type_known_final, bool* type_known_abstract, |
| 1182 | bool* equals_referrers_class) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1183 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1184 | *type_known_final = false; |
| 1185 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1186 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1187 | *type_known_abstract = false; |
| 1188 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1189 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1190 | *equals_referrers_class = false; |
| 1191 | } |
| 1192 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1193 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1194 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1195 | // Get type from dex cache assuming it was populated by the verifier |
| 1196 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1197 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1198 | stats_->TypeNeedsAccessCheck(); |
| 1199 | return false; // Unknown class needs access checks. |
| 1200 | } |
| 1201 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1202 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1203 | *equals_referrers_class = (method_id.class_idx_ == type_idx); |
| 1204 | } |
| 1205 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1206 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1207 | stats_->TypeNeedsAccessCheck(); |
| 1208 | return false; // Incomplete referrer knowledge needs access check. |
| 1209 | } |
| 1210 | // Perform access check, will return true if access is ok or false if we're going to have to |
| 1211 | // check this at runtime (for example for class loaders). |
| 1212 | bool result = referrer_class->CanAccess(resolved_class); |
| 1213 | if (result) { |
| 1214 | stats_->TypeDoesntNeedAccessCheck(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1215 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1216 | *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); |
| 1217 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1218 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1219 | *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); |
| 1220 | } |
| 1221 | } else { |
| 1222 | stats_->TypeNeedsAccessCheck(); |
| 1223 | } |
| 1224 | return result; |
| 1225 | } |
| 1226 | |
| 1227 | bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, |
| 1228 | const DexFile& dex_file, |
Mingyao Yang | fb8464a | 2015-11-02 10:56:59 -0800 | [diff] [blame] | 1229 | uint32_t type_idx, |
| 1230 | bool* finalizable) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1231 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1232 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache( |
| 1233 | soa.Self(), dex_file, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1234 | // Get type from dex cache assuming it was populated by the verifier. |
| 1235 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1236 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1237 | stats_->TypeNeedsAccessCheck(); |
Mingyao Yang | fb8464a | 2015-11-02 10:56:59 -0800 | [diff] [blame] | 1238 | // Be conservative. |
| 1239 | *finalizable = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1240 | return false; // Unknown class needs access checks. |
| 1241 | } |
Mingyao Yang | fb8464a | 2015-11-02 10:56:59 -0800 | [diff] [blame] | 1242 | *finalizable = resolved_class->IsFinalizable(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1243 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
| 1244 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1245 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1246 | stats_->TypeNeedsAccessCheck(); |
| 1247 | return false; // Incomplete referrer knowledge needs access check. |
| 1248 | } |
| 1249 | // Perform access and instantiable checks, will return true if access is ok or false if we're |
| 1250 | // going to have to check this at runtime (for example for class loaders). |
| 1251 | bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); |
| 1252 | if (result) { |
| 1253 | stats_->TypeDoesntNeedAccessCheck(); |
| 1254 | } else { |
| 1255 | stats_->TypeNeedsAccessCheck(); |
| 1256 | } |
| 1257 | return result; |
| 1258 | } |
| 1259 | |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1260 | bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, |
| 1261 | bool* is_type_initialized, bool* use_direct_type_ptr, |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1262 | uintptr_t* direct_type_ptr, bool* out_is_finalizable) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1263 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1264 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1265 | mirror::DexCache* dex_cache = runtime->GetClassLinker()->FindDexCache( |
| 1266 | soa.Self(), dex_file, false); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1267 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1268 | if (resolved_class == nullptr) { |
| 1269 | return false; |
| 1270 | } |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1271 | if (GetCompilerOptions().GetCompilePic()) { |
| 1272 | // Do not allow a direct class pointer to be used when compiling for position-independent |
| 1273 | return false; |
| 1274 | } |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1275 | *out_is_finalizable = resolved_class->IsFinalizable(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1276 | gc::Heap* heap = runtime->GetHeap(); |
| 1277 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1278 | const bool support_boot_image_fixup = GetSupportBootImageFixup(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1279 | if (compiling_boot) { |
| 1280 | // boot -> boot class pointers. |
| 1281 | // True if the class is in the image at boot compiling time. |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1282 | const bool is_image_class = IsBootImage() && IsImageClass( |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1283 | dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); |
| 1284 | // True if pc relative load works. |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1285 | if (is_image_class && support_boot_image_fixup) { |
| 1286 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1287 | *use_direct_type_ptr = false; |
| 1288 | *direct_type_ptr = 0; |
| 1289 | return true; |
| 1290 | } else { |
| 1291 | return false; |
| 1292 | } |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1293 | } else if (runtime->UseJit() && !heap->IsMovableObject(resolved_class)) { |
| 1294 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1295 | // If the class may move around, then don't embed it as a direct pointer. |
| 1296 | *use_direct_type_ptr = true; |
| 1297 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1298 | return true; |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1299 | } else { |
| 1300 | // True if the class is in the image at app compiling time. |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1301 | const bool class_in_image = heap->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1302 | if (class_in_image && support_boot_image_fixup) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1303 | // boot -> app class pointers. |
| 1304 | *is_type_initialized = resolved_class->IsInitialized(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1305 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1306 | *use_direct_type_ptr = !GetCompilerOptions().GetIncludePatchInformation(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1307 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1308 | return true; |
| 1309 | } else { |
| 1310 | // app -> app class pointers. |
| 1311 | // Give up because app does not have an image and class |
| 1312 | // isn't created at compile time. TODO: implement this |
| 1313 | // if/when each app gets an image. |
| 1314 | return false; |
| 1315 | } |
| 1316 | } |
| 1317 | } |
| 1318 | |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1319 | bool CompilerDriver::CanEmbedReferenceTypeInCode(ClassReference* ref, |
| 1320 | bool* use_direct_ptr, |
| 1321 | uintptr_t* direct_type_ptr) { |
| 1322 | CHECK(ref != nullptr); |
| 1323 | CHECK(use_direct_ptr != nullptr); |
| 1324 | CHECK(direct_type_ptr != nullptr); |
| 1325 | |
| 1326 | ScopedObjectAccess soa(Thread::Current()); |
| 1327 | mirror::Class* reference_class = mirror::Reference::GetJavaLangRefReference(); |
Andreas Gampe | 928f72b | 2014-09-09 19:53:48 -0700 | [diff] [blame] | 1328 | bool is_initialized = false; |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1329 | bool unused_finalizable; |
| 1330 | // Make sure we have a finished Reference class object before attempting to use it. |
| 1331 | if (!CanEmbedTypeInCode(*reference_class->GetDexCache()->GetDexFile(), |
| 1332 | reference_class->GetDexTypeIndex(), &is_initialized, |
| 1333 | use_direct_ptr, direct_type_ptr, &unused_finalizable) || |
| 1334 | !is_initialized) { |
| 1335 | return false; |
| 1336 | } |
| 1337 | ref->first = &reference_class->GetDexFile(); |
| 1338 | ref->second = reference_class->GetDexClassDefIndex(); |
| 1339 | return true; |
| 1340 | } |
| 1341 | |
| 1342 | uint32_t CompilerDriver::GetReferenceSlowFlagOffset() const { |
| 1343 | ScopedObjectAccess soa(Thread::Current()); |
| 1344 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1345 | DCHECK(klass->IsInitialized()); |
| 1346 | return klass->GetSlowPathFlagOffset().Uint32Value(); |
| 1347 | } |
| 1348 | |
| 1349 | uint32_t CompilerDriver::GetReferenceDisableFlagOffset() const { |
| 1350 | ScopedObjectAccess soa(Thread::Current()); |
| 1351 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1352 | DCHECK(klass->IsInitialized()); |
| 1353 | return klass->GetDisableIntrinsicFlagOffset().Uint32Value(); |
| 1354 | } |
| 1355 | |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1356 | DexCacheArraysLayout CompilerDriver::GetDexCacheArraysLayout(const DexFile* dex_file) { |
Vladimir Marko | d1eaf0d | 2015-10-29 12:18:29 +0000 | [diff] [blame] | 1357 | return ContainsElement(GetDexFilesForOatFile(), dex_file) |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1358 | ? DexCacheArraysLayout(GetInstructionSetPointerSize(instruction_set_), dex_file) |
Vladimir Marko | 20f8559 | 2015-03-19 10:07:02 +0000 | [diff] [blame] | 1359 | : DexCacheArraysLayout(); |
| 1360 | } |
| 1361 | |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1362 | void CompilerDriver::ProcessedInstanceField(bool resolved) { |
| 1363 | if (!resolved) { |
| 1364 | stats_->UnresolvedInstanceField(); |
| 1365 | } else { |
| 1366 | stats_->ResolvedInstanceField(); |
| 1367 | } |
| 1368 | } |
| 1369 | |
| 1370 | void CompilerDriver::ProcessedStaticField(bool resolved, bool local) { |
| 1371 | if (!resolved) { |
| 1372 | stats_->UnresolvedStaticField(); |
| 1373 | } else if (local) { |
| 1374 | stats_->ResolvedLocalStaticField(); |
| 1375 | } else { |
| 1376 | stats_->ResolvedStaticField(); |
| 1377 | } |
| 1378 | } |
| 1379 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1380 | void CompilerDriver::ProcessedInvoke(InvokeType invoke_type, int flags) { |
| 1381 | stats_->ProcessedInvoke(invoke_type, flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1382 | } |
| 1383 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1384 | ArtField* CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, |
| 1385 | const DexCompilationUnit* mUnit, bool is_put, |
| 1386 | const ScopedObjectAccess& soa) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1387 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1388 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1389 | mirror::Class* referrer_class; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1390 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1391 | { |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1392 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1393 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1394 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1395 | resolved_field = ResolveField(soa, dex_cache, class_loader_handle, mUnit, field_idx, false); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1396 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1397 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader_handle, mUnit) : nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1398 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1399 | bool can_link = false; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1400 | if (resolved_field != nullptr && referrer_class != nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1401 | std::pair<bool, bool> fast_path = IsFastInstanceField( |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1402 | dex_cache.Get(), referrer_class, resolved_field, field_idx); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1403 | can_link = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1404 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1405 | ProcessedInstanceField(can_link); |
| 1406 | return can_link ? resolved_field : nullptr; |
| 1407 | } |
| 1408 | |
| 1409 | bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
| 1410 | bool is_put, MemberOffset* field_offset, |
| 1411 | bool* is_volatile) { |
| 1412 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1413 | ArtField* resolved_field = ComputeInstanceFieldInfo(field_idx, mUnit, is_put, soa); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1414 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1415 | if (resolved_field == nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1416 | // Conservative defaults. |
| 1417 | *is_volatile = true; |
| 1418 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1419 | return false; |
| 1420 | } else { |
| 1421 | *is_volatile = resolved_field->IsVolatile(); |
| 1422 | *field_offset = resolved_field->GetOffset(); |
| 1423 | return true; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1424 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1425 | } |
| 1426 | |
| 1427 | bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1428 | bool is_put, MemberOffset* field_offset, |
| 1429 | uint32_t* storage_index, bool* is_referrers_class, |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1430 | bool* is_volatile, bool* is_initialized, |
| 1431 | Primitive::Type* type) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1432 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1433 | // Try to resolve the field and compiling method's class. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1434 | ArtField* resolved_field; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1435 | mirror::Class* referrer_class; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1436 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1437 | { |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1438 | StackHandleScope<1> hs(soa.Self()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1439 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1440 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1441 | resolved_field = |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1442 | ResolveField(soa, dex_cache, class_loader_handle, mUnit, field_idx, true); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1443 | referrer_class = resolved_field != nullptr |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1444 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader_handle, mUnit) : nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1445 | } |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1446 | bool result = false; |
| 1447 | if (resolved_field != nullptr && referrer_class != nullptr) { |
| 1448 | *is_volatile = IsFieldVolatile(resolved_field); |
| 1449 | std::pair<bool, bool> fast_path = IsFastStaticField( |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1450 | dex_cache.Get(), referrer_class, resolved_field, field_idx, storage_index); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1451 | result = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1452 | } |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1453 | if (result) { |
| 1454 | *field_offset = GetFieldOffset(resolved_field); |
| 1455 | *is_referrers_class = IsStaticFieldInReferrerClass(referrer_class, resolved_field); |
| 1456 | // *is_referrers_class == true implies no worrying about class initialization. |
| 1457 | *is_initialized = (*is_referrers_class) || |
| 1458 | (IsStaticFieldsClassInitialized(referrer_class, resolved_field) && |
| 1459 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index)); |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1460 | *type = resolved_field->GetTypeAsPrimitiveType(); |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1461 | } else { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1462 | // Conservative defaults. |
| 1463 | *is_volatile = true; |
| 1464 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
| 1465 | *storage_index = -1; |
| 1466 | *is_referrers_class = false; |
| 1467 | *is_initialized = false; |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1468 | *type = Primitive::kPrimVoid; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1469 | } |
| 1470 | ProcessedStaticField(result, *is_referrers_class); |
| 1471 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1472 | } |
| 1473 | |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1474 | void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, |
| 1475 | bool no_guarantee_of_dex_cache_entry, |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1476 | const mirror::Class* referrer_class, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1477 | ArtMethod* method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1478 | int* stats_flags, |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1479 | MethodReference* target_method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1480 | uintptr_t* direct_code, |
| 1481 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1482 | // For direct and static methods compute possible direct_code and direct_method values, ie |
| 1483 | // an address for the Method* being invoked and an address of the code for that Method*. |
| 1484 | // For interface calls compute a value for direct_method that is the interface method being |
| 1485 | // invoked, so this can be passed to the out-of-line runtime support code. |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1486 | *direct_code = 0; |
| 1487 | *direct_method = 0; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1488 | Runtime* const runtime = Runtime::Current(); |
| 1489 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1490 | auto* cl = runtime->GetClassLinker(); |
| 1491 | const auto pointer_size = cl->GetImagePointerSize(); |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1492 | bool use_dex_cache = GetCompilerOptions().GetCompilePic(); // Off by default |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1493 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1494 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1495 | const bool force_relocations = (compiling_boot || |
| 1496 | GetCompilerOptions().GetIncludePatchInformation()); |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1497 | if (sharp_type != kStatic && sharp_type != kDirect) { |
| 1498 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1499 | } |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1500 | // TODO: support patching on all architectures. |
| 1501 | use_dex_cache = use_dex_cache || (force_relocations && !support_boot_image_fixup_); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1502 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
| 1503 | bool method_code_in_boot = declaring_class->GetClassLoader() == nullptr; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1504 | if (!use_dex_cache) { |
| 1505 | if (!method_code_in_boot) { |
| 1506 | use_dex_cache = true; |
| 1507 | } else { |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1508 | bool has_clinit_trampoline = |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1509 | method->IsStatic() && !declaring_class->IsInitialized(); |
| 1510 | if (has_clinit_trampoline && declaring_class != referrer_class) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1511 | // Ensure we run the clinit trampoline unless we are invoking a static method in the same |
| 1512 | // class. |
| 1513 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1514 | } |
| 1515 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1516 | } |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1517 | if (runtime->UseJit()) { |
| 1518 | // If we are the JIT, then don't allow a direct call to the interpreter bridge since this will |
| 1519 | // never be updated even after we compile the method. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1520 | if (cl->IsQuickToInterpreterBridge( |
Mathieu Chartier | 28a3588 | 2015-02-26 18:28:07 -0800 | [diff] [blame] | 1521 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method)))) { |
| 1522 | use_dex_cache = true; |
| 1523 | } |
| 1524 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1525 | if (method_code_in_boot) { |
| 1526 | *stats_flags |= kFlagDirectCallToBoot | kFlagDirectMethodToBoot; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1527 | } |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1528 | if (!use_dex_cache && force_relocations) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1529 | bool is_in_image; |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 1530 | if (IsBootImage()) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1531 | is_in_image = IsImageClass(method->GetDeclaringClassDescriptor()); |
| 1532 | } else { |
| 1533 | is_in_image = instruction_set_ != kX86 && instruction_set_ != kX86_64 && |
Vladimir Marko | c08ab29 | 2015-06-22 14:35:42 +0100 | [diff] [blame] | 1534 | heap->FindSpaceFromObject(method->GetDeclaringClass(), false)->IsImageSpace() && |
| 1535 | !cl->IsQuickToInterpreterBridge( |
| 1536 | reinterpret_cast<const void*>(compiler_->GetEntryPointOf(method))); |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1537 | } |
| 1538 | if (!is_in_image) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1539 | // We can only branch directly to Methods that are resolved in the DexCache. |
| 1540 | // Otherwise we won't invoke the resolution trampoline. |
| 1541 | use_dex_cache = true; |
| 1542 | } |
| 1543 | } |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 1544 | if (!use_dex_cache && IsBootImage()) { |
| 1545 | if (!AreInSameOatFile(&(const_cast<mirror::Class*>(referrer_class)->GetDexFile()), |
| 1546 | &declaring_class->GetDexFile())) { |
| 1547 | use_dex_cache = true; |
| 1548 | } |
| 1549 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1550 | // The method is defined not within this dex file. We need a dex cache slot within the current |
| 1551 | // dex file or direct pointers. |
| 1552 | bool must_use_direct_pointers = false; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1553 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
| 1554 | if (target_method->dex_file == dex_cache->GetDexFile() && |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1555 | !(runtime->UseJit() && dex_cache->GetResolvedMethod( |
| 1556 | method->GetDexMethodIndex(), pointer_size) == nullptr)) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1557 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1558 | } else { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1559 | if (no_guarantee_of_dex_cache_entry) { |
| 1560 | // See if the method is also declared in this dex cache. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1561 | uint32_t dex_method_idx = method->FindDexMethodIndexInOtherDexFile( |
| 1562 | *target_method->dex_file, target_method->dex_method_index); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1563 | if (dex_method_idx != DexFile::kDexNoIndex) { |
| 1564 | target_method->dex_method_index = dex_method_idx; |
| 1565 | } else { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1566 | if (force_relocations && !use_dex_cache) { |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1567 | target_method->dex_method_index = method->GetDexMethodIndex(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1568 | target_method->dex_file = dex_cache->GetDexFile(); |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1569 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1570 | must_use_direct_pointers = true; |
| 1571 | } |
| 1572 | } |
| 1573 | } |
| 1574 | if (use_dex_cache) { |
| 1575 | if (must_use_direct_pointers) { |
| 1576 | // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct |
| 1577 | // pointers are required as the dex cache lacks an appropriate entry. |
| 1578 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1579 | } else { |
| 1580 | *type = sharp_type; |
| 1581 | } |
| 1582 | } else { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1583 | bool method_in_image = false; |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 1584 | const std::vector<gc::space::ImageSpace*> image_spaces = heap->GetBootImageSpaces(); |
| 1585 | for (gc::space::ImageSpace* image_space : image_spaces) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1586 | const auto& method_section = image_space->GetImageHeader().GetMethodsSection(); |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 1587 | if (method_section.Contains(reinterpret_cast<uint8_t*>(method) - image_space->Begin())) { |
| 1588 | method_in_image = true; |
| 1589 | break; |
| 1590 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1591 | } |
Mathieu Chartier | 6ced409 | 2015-02-27 16:10:48 -0800 | [diff] [blame] | 1592 | if (method_in_image || compiling_boot || runtime->UseJit()) { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1593 | // We know we must be able to get to the method in the image, so use that pointer. |
Mathieu Chartier | 6ced409 | 2015-02-27 16:10:48 -0800 | [diff] [blame] | 1594 | // In the case where we are the JIT, we can always use direct pointers since we know where |
| 1595 | // the method and its code are / will be. We don't sharpen to interpreter bridge since we |
| 1596 | // check IsQuickToInterpreterBridge above. |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1597 | CHECK(!method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1598 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1599 | *direct_method = force_relocations ? -1 : reinterpret_cast<uintptr_t>(method); |
| 1600 | *direct_code = force_relocations ? -1 : compiler_->GetEntryPointOf(method); |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1601 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1602 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1603 | } else if (!must_use_direct_pointers) { |
| 1604 | // Set the code and rely on the dex cache for the method. |
| 1605 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1606 | if (force_relocations) { |
| 1607 | *direct_code = -1; |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1608 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1609 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1610 | } else { |
| 1611 | *direct_code = compiler_->GetEntryPointOf(method); |
| 1612 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1613 | } else { |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1614 | // Direct pointers were required but none were available. |
| 1615 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1616 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1617 | } |
| 1618 | } |
| 1619 | |
| 1620 | bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1621 | bool update_stats, bool enable_devirtualization, |
| 1622 | InvokeType* invoke_type, MethodReference* target_method, |
| 1623 | int* vtable_idx, uintptr_t* direct_code, |
| 1624 | uintptr_t* direct_method) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1625 | InvokeType orig_invoke_type = *invoke_type; |
| 1626 | int stats_flags = 0; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1627 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1628 | // Try to resolve the method and compiling method's class. |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 1629 | StackHandleScope<2> hs(soa.Self()); |
| 1630 | Handle<mirror::DexCache> dex_cache(mUnit->GetDexCache()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1631 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 1632 | soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1633 | uint32_t method_idx = target_method->dex_method_index; |
| 1634 | ArtMethod* resolved_method = ResolveMethod( |
| 1635 | soa, dex_cache, class_loader, mUnit, method_idx, orig_invoke_type); |
| 1636 | auto h_referrer_class = hs.NewHandle(resolved_method != nullptr ? |
| 1637 | ResolveCompilingMethodsClass(soa, dex_cache, class_loader, mUnit) : nullptr); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1638 | bool result = false; |
| 1639 | if (resolved_method != nullptr) { |
| 1640 | *vtable_idx = GetResolvedMethodVTableIndex(resolved_method, orig_invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1641 | |
Nicolas Geoffray | e53798a | 2014-12-01 10:31:54 +0000 | [diff] [blame] | 1642 | if (enable_devirtualization && mUnit->GetVerifiedMethod() != nullptr) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1643 | const MethodReference* devirt_target = mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); |
| 1644 | |
| 1645 | stats_flags = IsFastInvoke( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1646 | soa, dex_cache, class_loader, mUnit, h_referrer_class.Get(), resolved_method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1647 | invoke_type, target_method, devirt_target, direct_code, direct_method); |
| 1648 | result = stats_flags != 0; |
| 1649 | } else { |
| 1650 | // Devirtualization not enabled. Inline IsFastInvoke(), dropping the devirtualization parts. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1651 | if (UNLIKELY(h_referrer_class.Get() == nullptr) || |
| 1652 | UNLIKELY(!h_referrer_class->CanAccessResolvedMethod(resolved_method->GetDeclaringClass(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1653 | resolved_method, dex_cache.Get(), |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1654 | target_method->dex_method_index)) || |
| 1655 | *invoke_type == kSuper) { |
| 1656 | // Slow path. (Without devirtualization, all super calls go slow path as well.) |
| 1657 | } else { |
| 1658 | // Sharpening failed so generate a regular resolved method dispatch. |
| 1659 | stats_flags = kFlagMethodResolved; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1660 | GetCodeAndMethodForDirectCall( |
| 1661 | invoke_type, *invoke_type, false, h_referrer_class.Get(), resolved_method, &stats_flags, |
| 1662 | target_method, direct_code, direct_method); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1663 | result = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1664 | } |
| 1665 | } |
| 1666 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1667 | if (!result) { |
| 1668 | // Conservative defaults. |
| 1669 | *vtable_idx = -1; |
| 1670 | *direct_code = 0u; |
| 1671 | *direct_method = 0u; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1672 | } |
| 1673 | if (update_stats) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1674 | ProcessedInvoke(orig_invoke_type, stats_flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1675 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1676 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1677 | } |
| 1678 | |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1679 | const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, |
| 1680 | uint32_t method_idx) const { |
| 1681 | MethodReference ref(dex_file, method_idx); |
| 1682 | return verification_results_->GetVerifiedMethod(ref); |
| 1683 | } |
| 1684 | |
| 1685 | bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1686 | if (!compiler_options_->IsVerificationEnabled()) { |
| 1687 | // If we didn't verify, every cast has to be treated as non-safe. |
| 1688 | return false; |
| 1689 | } |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1690 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
| 1691 | bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1692 | if (result) { |
| 1693 | stats_->SafeCast(); |
| 1694 | } else { |
| 1695 | stats_->NotASafeCast(); |
| 1696 | } |
| 1697 | return result; |
| 1698 | } |
| 1699 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1700 | class CompilationVisitor { |
| 1701 | public: |
| 1702 | virtual ~CompilationVisitor() {} |
| 1703 | virtual void Visit(size_t index) = 0; |
| 1704 | }; |
| 1705 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1706 | class ParallelCompilationManager { |
| 1707 | public: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1708 | ParallelCompilationManager(ClassLinker* class_linker, |
| 1709 | jobject class_loader, |
| 1710 | CompilerDriver* compiler, |
| 1711 | const DexFile* dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1712 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1713 | ThreadPool* thread_pool) |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1714 | : index_(0), |
| 1715 | class_linker_(class_linker), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1716 | class_loader_(class_loader), |
| 1717 | compiler_(compiler), |
| 1718 | dex_file_(dex_file), |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1719 | dex_files_(dex_files), |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1720 | thread_pool_(thread_pool) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1721 | |
| 1722 | ClassLinker* GetClassLinker() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1723 | CHECK(class_linker_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1724 | return class_linker_; |
| 1725 | } |
| 1726 | |
| 1727 | jobject GetClassLoader() const { |
| 1728 | return class_loader_; |
| 1729 | } |
| 1730 | |
| 1731 | CompilerDriver* GetCompiler() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1732 | CHECK(compiler_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1733 | return compiler_; |
| 1734 | } |
| 1735 | |
| 1736 | const DexFile* GetDexFile() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1737 | CHECK(dex_file_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1738 | return dex_file_; |
| 1739 | } |
| 1740 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1741 | const std::vector<const DexFile*>& GetDexFiles() const { |
| 1742 | return dex_files_; |
| 1743 | } |
| 1744 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1745 | void ForAll(size_t begin, size_t end, CompilationVisitor* visitor, size_t work_units) |
| 1746 | REQUIRES(!*Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1747 | Thread* self = Thread::Current(); |
| 1748 | self->AssertNoPendingException(); |
| 1749 | CHECK_GT(work_units, 0U); |
| 1750 | |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1751 | index_.StoreRelaxed(begin); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1752 | for (size_t i = 0; i < work_units; ++i) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1753 | thread_pool_->AddTask(self, new ForAllClosure(this, end, visitor)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1754 | } |
| 1755 | thread_pool_->StartWorkers(self); |
| 1756 | |
| 1757 | // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker |
| 1758 | // thread destructor's called below perform join). |
| 1759 | CHECK_NE(self->GetState(), kRunnable); |
| 1760 | |
| 1761 | // Wait for all the worker threads to finish. |
| 1762 | thread_pool_->Wait(self, true, false); |
| 1763 | } |
| 1764 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1765 | size_t NextIndex() { |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1766 | return index_.FetchAndAddSequentiallyConsistent(1); |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1767 | } |
| 1768 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1769 | private: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1770 | class ForAllClosure : public Task { |
| 1771 | public: |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1772 | ForAllClosure(ParallelCompilationManager* manager, size_t end, CompilationVisitor* visitor) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1773 | : manager_(manager), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1774 | end_(end), |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1775 | visitor_(visitor) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1776 | |
| 1777 | virtual void Run(Thread* self) { |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1778 | while (true) { |
| 1779 | const size_t index = manager_->NextIndex(); |
| 1780 | if (UNLIKELY(index >= end_)) { |
| 1781 | break; |
| 1782 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1783 | visitor_->Visit(index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1784 | self->AssertNoPendingException(); |
| 1785 | } |
| 1786 | } |
| 1787 | |
| 1788 | virtual void Finalize() { |
| 1789 | delete this; |
| 1790 | } |
Brian Carlstrom | 0cd7ec2 | 2013-07-17 23:40:20 -0700 | [diff] [blame] | 1791 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1792 | private: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1793 | ParallelCompilationManager* const manager_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1794 | const size_t end_; |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1795 | CompilationVisitor* const visitor_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1796 | }; |
| 1797 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1798 | AtomicInteger index_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1799 | ClassLinker* const class_linker_; |
| 1800 | const jobject class_loader_; |
| 1801 | CompilerDriver* const compiler_; |
| 1802 | const DexFile* const dex_file_; |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1803 | const std::vector<const DexFile*>& dex_files_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1804 | ThreadPool* const thread_pool_; |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1805 | |
| 1806 | DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1807 | }; |
| 1808 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1809 | // A fast version of SkipClass above if the class pointer is available |
| 1810 | // that avoids the expensive FindInClassPath search. |
| 1811 | static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1812 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1813 | DCHECK(klass != nullptr); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1814 | const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); |
| 1815 | if (&dex_file != &original_dex_file) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1816 | if (class_loader == nullptr) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1817 | LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " |
| 1818 | << dex_file.GetLocation() << " previously found in " |
| 1819 | << original_dex_file.GetLocation(); |
| 1820 | } |
| 1821 | return true; |
| 1822 | } |
| 1823 | return false; |
| 1824 | } |
| 1825 | |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1826 | static void CheckAndClearResolveException(Thread* self) |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1827 | SHARED_REQUIRES(Locks::mutator_lock_) { |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1828 | CHECK(self->IsExceptionPending()); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1829 | mirror::Throwable* exception = self->GetException(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1830 | std::string temp; |
| 1831 | const char* descriptor = exception->GetClass()->GetDescriptor(&temp); |
| 1832 | const char* expected_exceptions[] = { |
| 1833 | "Ljava/lang/IllegalAccessError;", |
| 1834 | "Ljava/lang/IncompatibleClassChangeError;", |
| 1835 | "Ljava/lang/InstantiationError;", |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1836 | "Ljava/lang/LinkageError;", |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1837 | "Ljava/lang/NoClassDefFoundError;", |
| 1838 | "Ljava/lang/NoSuchFieldError;", |
| 1839 | "Ljava/lang/NoSuchMethodError;" |
| 1840 | }; |
| 1841 | bool found = false; |
| 1842 | for (size_t i = 0; (found == false) && (i < arraysize(expected_exceptions)); ++i) { |
| 1843 | if (strcmp(descriptor, expected_exceptions[i]) == 0) { |
| 1844 | found = true; |
| 1845 | } |
| 1846 | } |
| 1847 | if (!found) { |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1848 | LOG(FATAL) << "Unexpected exception " << exception->Dump(); |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1849 | } |
| 1850 | self->ClearException(); |
| 1851 | } |
| 1852 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1853 | class ResolveClassFieldsAndMethodsVisitor : public CompilationVisitor { |
| 1854 | public: |
| 1855 | explicit ResolveClassFieldsAndMethodsVisitor(const ParallelCompilationManager* manager) |
| 1856 | : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1857 | |
Mathieu Chartier | e0671ce | 2015-07-28 17:23:28 -0700 | [diff] [blame] | 1858 | void Visit(size_t class_def_index) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1859 | ATRACE_CALL(); |
| 1860 | Thread* const self = Thread::Current(); |
| 1861 | jobject jclass_loader = manager_->GetClassLoader(); |
| 1862 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 1863 | ClassLinker* class_linker = manager_->GetClassLinker(); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1864 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1865 | // If an instance field is final then we need to have a barrier on the return, static final |
| 1866 | // fields are assigned within the lock held for class initialization. Conservatively assume |
| 1867 | // constructor barriers are always required. |
| 1868 | bool requires_constructor_barrier = true; |
| 1869 | |
| 1870 | // Method and Field are the worst. We can't resolve without either |
| 1871 | // context from the code use (to disambiguate virtual vs direct |
| 1872 | // method and instance vs static field) or from class |
| 1873 | // definitions. While the compiler will resolve what it can as it |
| 1874 | // needs it, here we try to resolve fields and methods used in class |
| 1875 | // definitions, since many of them many never be referenced by |
| 1876 | // generated code. |
| 1877 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 1878 | ScopedObjectAccess soa(self); |
| 1879 | StackHandleScope<2> hs(soa.Self()); |
| 1880 | Handle<mirror::ClassLoader> class_loader( |
| 1881 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 1882 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 1883 | soa.Self(), dex_file, false))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1884 | // Resolve the class. |
| 1885 | mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, |
| 1886 | class_loader); |
| 1887 | bool resolve_fields_and_methods; |
| 1888 | if (klass == nullptr) { |
| 1889 | // Class couldn't be resolved, for example, super-class is in a different dex file. Don't |
| 1890 | // attempt to resolve methods and fields when there is no declaring class. |
| 1891 | CheckAndClearResolveException(soa.Self()); |
| 1892 | resolve_fields_and_methods = false; |
| 1893 | } else { |
| 1894 | // We successfully resolved a class, should we skip it? |
| 1895 | if (SkipClass(jclass_loader, dex_file, klass)) { |
| 1896 | return; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1897 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1898 | // We want to resolve the methods and fields eagerly. |
| 1899 | resolve_fields_and_methods = true; |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1900 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1901 | // Note the class_data pointer advances through the headers, |
| 1902 | // static fields, instance fields, direct methods, and virtual |
| 1903 | // methods. |
| 1904 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 1905 | if (class_data == nullptr) { |
| 1906 | // Empty class such as a marker interface. |
| 1907 | requires_constructor_barrier = false; |
| 1908 | } else { |
| 1909 | ClassDataItemIterator it(dex_file, class_data); |
| 1910 | while (it.HasNextStaticField()) { |
| 1911 | if (resolve_fields_and_methods) { |
| 1912 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1913 | dex_cache, class_loader, true); |
| 1914 | if (field == nullptr) { |
| 1915 | CheckAndClearResolveException(soa.Self()); |
| 1916 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1917 | } |
| 1918 | it.Next(); |
| 1919 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1920 | // We require a constructor barrier if there are final instance fields. |
| 1921 | requires_constructor_barrier = false; |
| 1922 | while (it.HasNextInstanceField()) { |
| 1923 | if (it.MemberIsFinal()) { |
| 1924 | requires_constructor_barrier = true; |
| 1925 | } |
| 1926 | if (resolve_fields_and_methods) { |
| 1927 | ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1928 | dex_cache, class_loader, false); |
| 1929 | if (field == nullptr) { |
| 1930 | CheckAndClearResolveException(soa.Self()); |
| 1931 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1932 | } |
| 1933 | it.Next(); |
| 1934 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1935 | if (resolve_fields_and_methods) { |
| 1936 | while (it.HasNextDirectMethod()) { |
Andreas Gampe | 42ef8ab | 2015-12-03 17:27:32 -0800 | [diff] [blame] | 1937 | ArtMethod* method = class_linker->ResolveMethod<ClassLinker::kNoICCECheckForCache>( |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1938 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 1939 | it.GetMethodInvokeType(class_def)); |
| 1940 | if (method == nullptr) { |
| 1941 | CheckAndClearResolveException(soa.Self()); |
| 1942 | } |
| 1943 | it.Next(); |
| 1944 | } |
| 1945 | while (it.HasNextVirtualMethod()) { |
Andreas Gampe | 42ef8ab | 2015-12-03 17:27:32 -0800 | [diff] [blame] | 1946 | ArtMethod* method = class_linker->ResolveMethod<ClassLinker::kNoICCECheckForCache>( |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1947 | dex_file, it.GetMemberIndex(), dex_cache, class_loader, nullptr, |
| 1948 | it.GetMethodInvokeType(class_def)); |
| 1949 | if (method == nullptr) { |
| 1950 | CheckAndClearResolveException(soa.Self()); |
| 1951 | } |
| 1952 | it.Next(); |
| 1953 | } |
| 1954 | DCHECK(!it.HasNext()); |
| 1955 | } |
| 1956 | } |
| 1957 | if (requires_constructor_barrier) { |
| 1958 | manager_->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1959 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1960 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1961 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1962 | private: |
| 1963 | const ParallelCompilationManager* const manager_; |
| 1964 | }; |
| 1965 | |
| 1966 | class ResolveTypeVisitor : public CompilationVisitor { |
| 1967 | public: |
| 1968 | explicit ResolveTypeVisitor(const ParallelCompilationManager* manager) : manager_(manager) { |
| 1969 | } |
| 1970 | virtual void Visit(size_t type_idx) OVERRIDE REQUIRES(!Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1971 | // Class derived values are more complicated, they require the linker and loader. |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1972 | ScopedObjectAccess soa(Thread::Current()); |
| 1973 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 1974 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 1975 | StackHandleScope<2> hs(soa.Self()); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1976 | Handle<mirror::ClassLoader> class_loader( |
| 1977 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(manager_->GetClassLoader()))); |
Mathieu Chartier | d57d454 | 2015-10-14 10:55:30 -0700 | [diff] [blame] | 1978 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->RegisterDexFile( |
| 1979 | dex_file, |
| 1980 | class_linker->GetOrCreateAllocatorForClassLoader(class_loader.Get())))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1981 | mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1982 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1983 | if (klass == nullptr) { |
| 1984 | soa.Self()->AssertPendingException(); |
| 1985 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 1986 | VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); |
| 1987 | if (exception->GetClass()->DescriptorEquals("Ljava/lang/OutOfMemoryError;")) { |
| 1988 | // There's little point continuing compilation if the heap is exhausted. |
| 1989 | LOG(FATAL) << "Out of memory during type resolution for compilation"; |
| 1990 | } |
| 1991 | soa.Self()->ClearException(); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1992 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1993 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 1994 | |
| 1995 | private: |
| 1996 | const ParallelCompilationManager* const manager_; |
| 1997 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1998 | |
| 1999 | void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2000 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2001 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2002 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2003 | |
| 2004 | // TODO: we could resolve strings here, although the string table is largely filled with class |
| 2005 | // and method names. |
| 2006 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2007 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2008 | thread_pool); |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2009 | if (IsBootImage()) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2010 | // For images we resolve all types, such as array, whereas for applications just those with |
| 2011 | // classdefs are resolved by ResolveClassFieldsAndMethods. |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2012 | TimingLogger::ScopedTiming t("Resolve Types", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2013 | ResolveTypeVisitor visitor(&context); |
| 2014 | context.ForAll(0, dex_file.NumTypeIds(), &visitor, thread_count_); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2015 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2016 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2017 | TimingLogger::ScopedTiming t("Resolve MethodsAndFields", timings); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2018 | ResolveClassFieldsAndMethodsVisitor visitor(&context); |
| 2019 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2020 | } |
| 2021 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2022 | void CompilerDriver::SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
| 2023 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2024 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2025 | CHECK(dex_file != nullptr); |
| 2026 | SetVerifiedDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
| 2027 | } |
| 2028 | } |
| 2029 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2030 | void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2031 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2032 | for (const DexFile* dex_file : dex_files) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2033 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2034 | VerifyDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2035 | } |
| 2036 | } |
| 2037 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2038 | class VerifyClassVisitor : public CompilationVisitor { |
| 2039 | public: |
| 2040 | explicit VerifyClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2041 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2042 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2043 | ATRACE_CALL(); |
| 2044 | ScopedObjectAccess soa(Thread::Current()); |
| 2045 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2046 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2047 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2048 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2049 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2050 | StackHandleScope<3> hs(soa.Self()); |
| 2051 | Handle<mirror::ClassLoader> class_loader( |
| 2052 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2053 | Handle<mirror::Class> klass( |
| 2054 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2055 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2056 | CHECK(soa.Self()->IsExceptionPending()); |
| 2057 | soa.Self()->ClearException(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2058 | |
| 2059 | /* |
| 2060 | * At compile time, we can still structurally verify the class even if FindClass fails. |
| 2061 | * This is to ensure the class is structurally sound for compilation. An unsound class |
| 2062 | * will be rejected by the verifier and later skipped during compilation in the compiler. |
| 2063 | */ |
Mathieu Chartier | 673ed3d | 2015-08-28 14:56:43 -0700 | [diff] [blame] | 2064 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache( |
| 2065 | soa.Self(), dex_file, false))); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2066 | std::string error_msg; |
Andreas Gampe | ec6e6c1 | 2015-11-05 20:39:56 -0800 | [diff] [blame] | 2067 | if (verifier::MethodVerifier::VerifyClass(soa.Self(), |
| 2068 | &dex_file, |
| 2069 | dex_cache, |
| 2070 | class_loader, |
| 2071 | &class_def, |
Andreas Gampe | 53e32d1 | 2015-12-09 21:03:23 -0800 | [diff] [blame] | 2072 | Runtime::Current()->GetCompilerCallbacks(), |
Andreas Gampe | ec6e6c1 | 2015-11-05 20:39:56 -0800 | [diff] [blame] | 2073 | true /* allow soft failures */, |
| 2074 | true /* log hard failures */, |
| 2075 | &error_msg) == |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2076 | verifier::MethodVerifier::kHardFailure) { |
| 2077 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) |
| 2078 | << " because: " << error_msg; |
| 2079 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2080 | } |
| 2081 | } else if (!SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2082 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()); |
| 2083 | class_linker->VerifyClass(soa.Self(), klass); |
| 2084 | |
| 2085 | if (klass->IsErroneous()) { |
| 2086 | // ClassLinker::VerifyClass throws, which isn't useful in the compiler. |
| 2087 | CHECK(soa.Self()->IsExceptionPending()); |
| 2088 | soa.Self()->ClearException(); |
| 2089 | manager_->GetCompiler()->SetHadHardVerifierFailure(); |
| 2090 | } |
| 2091 | |
| 2092 | CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) |
| 2093 | << PrettyDescriptor(klass.Get()) << ": state=" << klass->GetStatus(); |
| 2094 | |
| 2095 | // It is *very* problematic if there are verification errors in the boot classpath. For example, |
| 2096 | // we rely on things working OK without verification when the decryption dialog is brought up. |
| 2097 | // So abort in a debug build if we find this violated. |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2098 | DCHECK(!manager_->GetCompiler()->IsBootImage() || klass->IsVerified()) |
| 2099 | << "Boot classpath class " << PrettyClass(klass.Get()) << " failed to fully verify."; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 2100 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2101 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2102 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2103 | |
| 2104 | private: |
| 2105 | const ParallelCompilationManager* const manager_; |
| 2106 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2107 | |
| 2108 | void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2109 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2110 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2111 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2112 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2113 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2114 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2115 | VerifyClassVisitor visitor(&context); |
| 2116 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2117 | } |
| 2118 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2119 | class SetVerifiedClassVisitor : public CompilationVisitor { |
| 2120 | public: |
| 2121 | explicit SetVerifiedClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2122 | |
| 2123 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2124 | ATRACE_CALL(); |
| 2125 | ScopedObjectAccess soa(Thread::Current()); |
| 2126 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2127 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2128 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2129 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2130 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2131 | StackHandleScope<3> hs(soa.Self()); |
| 2132 | Handle<mirror::ClassLoader> class_loader( |
| 2133 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2134 | Handle<mirror::Class> klass( |
| 2135 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2136 | // Class might have failed resolution. Then don't set it to verified. |
| 2137 | if (klass.Get() != nullptr) { |
| 2138 | // Only do this if the class is resolved. If even resolution fails, quickening will go very, |
| 2139 | // very wrong. |
| 2140 | if (klass->IsResolved()) { |
| 2141 | if (klass->GetStatus() < mirror::Class::kStatusVerified) { |
| 2142 | ObjectLock<mirror::Class> lock(soa.Self(), klass); |
| 2143 | // Set class status to verified. |
| 2144 | mirror::Class::SetStatus(klass, mirror::Class::kStatusVerified, soa.Self()); |
| 2145 | // Mark methods as pre-verified. If we don't do this, the interpreter will run with |
| 2146 | // access checks. |
| 2147 | klass->SetPreverifiedFlagOnAllMethods( |
| 2148 | GetInstructionSetPointerSize(manager_->GetCompiler()->GetInstructionSet())); |
| 2149 | klass->SetPreverified(); |
| 2150 | } |
| 2151 | // Record the final class status if necessary. |
| 2152 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2153 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2154 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2155 | } else { |
| 2156 | Thread* self = soa.Self(); |
| 2157 | DCHECK(self->IsExceptionPending()); |
| 2158 | self->ClearException(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2159 | } |
| 2160 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2161 | |
| 2162 | private: |
| 2163 | const ParallelCompilationManager* const manager_; |
| 2164 | }; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2165 | |
| 2166 | void CompilerDriver::SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, |
| 2167 | const std::vector<const DexFile*>& dex_files, |
| 2168 | ThreadPool* thread_pool, TimingLogger* timings) { |
| 2169 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
| 2170 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2171 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 2172 | thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2173 | SetVerifiedClassVisitor visitor(&context); |
| 2174 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2175 | } |
| 2176 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2177 | class InitializeClassVisitor : public CompilationVisitor { |
| 2178 | public: |
| 2179 | explicit InitializeClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 2180 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2181 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2182 | ATRACE_CALL(); |
| 2183 | jobject jclass_loader = manager_->GetClassLoader(); |
| 2184 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2185 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2186 | const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); |
| 2187 | const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 2188 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2189 | ScopedObjectAccess soa(Thread::Current()); |
| 2190 | StackHandleScope<3> hs(soa.Self()); |
| 2191 | Handle<mirror::ClassLoader> class_loader( |
| 2192 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2193 | Handle<mirror::Class> klass( |
| 2194 | hs.NewHandle(manager_->GetClassLinker()->FindClass(soa.Self(), descriptor, class_loader))); |
| 2195 | |
| 2196 | if (klass.Get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2197 | // Only try to initialize classes that were successfully verified. |
| 2198 | if (klass->IsVerified()) { |
| 2199 | // Attempt to initialize the class but bail if we either need to initialize the super-class |
| 2200 | // or static fields. |
| 2201 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, false); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2202 | if (!klass->IsInitialized()) { |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2203 | // We don't want non-trivial class initialization occurring on multiple threads due to |
| 2204 | // deadlock problems. For example, a parent class is initialized (holding its lock) that |
| 2205 | // refers to a sub-class in its static/class initializer causing it to try to acquire the |
| 2206 | // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) |
| 2207 | // after first initializing its parents, whose locks are acquired. This leads to a |
| 2208 | // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. |
| 2209 | // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather |
| 2210 | // than use a special Object for the purpose we use the Class of java.lang.Class. |
| 2211 | Handle<mirror::Class> h_klass(hs.NewHandle(klass->GetClass())); |
| 2212 | ObjectLock<mirror::Class> lock(soa.Self(), h_klass); |
| 2213 | // Attempt to initialize allowing initialization of parent classes but still not static |
| 2214 | // fields. |
| 2215 | manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, true); |
| 2216 | if (!klass->IsInitialized()) { |
| 2217 | // We need to initialize static fields, we only do this for image classes that aren't |
| 2218 | // marked with the $NoPreloadHolder (which implies this should not be initialized early). |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2219 | bool can_init_static_fields = manager_->GetCompiler()->IsBootImage() && |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2220 | manager_->GetCompiler()->IsImageClass(descriptor) && |
| 2221 | !StringPiece(descriptor).ends_with("$NoPreloadHolder;"); |
| 2222 | if (can_init_static_fields) { |
| 2223 | VLOG(compiler) << "Initializing: " << descriptor; |
| 2224 | // TODO multithreading support. We should ensure the current compilation thread has |
| 2225 | // exclusive access to the runtime and the transaction. To achieve this, we could use |
| 2226 | // a ReaderWriterMutex but we're holding the mutator lock so we fail mutex sanity |
| 2227 | // checks in Thread::AssertThreadSuspensionIsAllowable. |
| 2228 | Runtime* const runtime = Runtime::Current(); |
| 2229 | Transaction transaction; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2230 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2231 | // Run the class initializer in transaction mode. |
| 2232 | runtime->EnterTransactionMode(&transaction); |
| 2233 | const mirror::Class::Status old_status = klass->GetStatus(); |
| 2234 | bool success = manager_->GetClassLinker()->EnsureInitialized(soa.Self(), klass, true, |
| 2235 | true); |
| 2236 | // TODO we detach transaction from runtime to indicate we quit the transactional |
| 2237 | // mode which prevents the GC from visiting objects modified during the transaction. |
| 2238 | // Ensure GC is not run so don't access freed objects when aborting transaction. |
Mathieu Chartier | 2d5f39e | 2014-09-19 17:52:37 -0700 | [diff] [blame] | 2239 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2240 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Transaction end"); |
| 2241 | runtime->ExitTransactionMode(); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2242 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2243 | if (!success) { |
| 2244 | CHECK(soa.Self()->IsExceptionPending()); |
| 2245 | mirror::Throwable* exception = soa.Self()->GetException(); |
| 2246 | VLOG(compiler) << "Initialization of " << descriptor << " aborted because of " |
| 2247 | << exception->Dump(); |
| 2248 | std::ostream* file_log = manager_->GetCompiler()-> |
| 2249 | GetCompilerOptions().GetInitFailureOutput(); |
| 2250 | if (file_log != nullptr) { |
| 2251 | *file_log << descriptor << "\n"; |
| 2252 | *file_log << exception->Dump() << "\n"; |
| 2253 | } |
| 2254 | soa.Self()->ClearException(); |
| 2255 | transaction.Rollback(); |
| 2256 | CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored"; |
Andreas Gampe | dbfe254 | 2014-11-25 22:21:42 -0800 | [diff] [blame] | 2257 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2258 | } |
| 2259 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2260 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2261 | } |
| 2262 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2263 | // Record the final class status if necessary. |
| 2264 | ClassReference ref(manager_->GetDexFile(), class_def_index); |
| 2265 | manager_->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2266 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2267 | // Clear any class not found or verification exceptions. |
| 2268 | soa.Self()->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2269 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2270 | |
| 2271 | private: |
| 2272 | const ParallelCompilationManager* const manager_; |
| 2273 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2274 | |
| 2275 | void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2276 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2277 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2278 | TimingLogger::ScopedTiming t("InitializeNoClinit", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2279 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2280 | ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, dex_files, |
| 2281 | thread_pool); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2282 | size_t thread_count; |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2283 | if (IsBootImage()) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2284 | // TODO: remove this when transactional mode supports multithreading. |
| 2285 | thread_count = 1U; |
| 2286 | } else { |
| 2287 | thread_count = thread_count_; |
| 2288 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2289 | InitializeClassVisitor visitor(&context); |
| 2290 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2291 | } |
| 2292 | |
| 2293 | void CompilerDriver::InitializeClasses(jobject class_loader, |
| 2294 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2295 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2296 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2297 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2298 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2299 | InitializeClasses(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2300 | } |
Mathieu Chartier | da5b28a | 2015-11-05 08:03:47 -0800 | [diff] [blame] | 2301 | if (IsBootImage()) { |
Mathieu Chartier | 093ef21 | 2014-08-11 13:52:12 -0700 | [diff] [blame] | 2302 | // Prune garbage objects created during aborted transactions. |
| 2303 | Runtime::Current()->GetHeap()->CollectGarbage(true); |
| 2304 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2305 | } |
| 2306 | |
| 2307 | void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2308 | ThreadPool* thread_pool, TimingLogger* timings) { |
Calin Juravle | 226501b | 2015-12-11 14:41:31 +0000 | [diff] [blame] | 2309 | if (profile_compilation_info_ != nullptr) { |
| 2310 | if (!profile_compilation_info_->Load(dex_files)) { |
| 2311 | LOG(WARNING) << "Failed to load offline profile info from " |
| 2312 | << profile_compilation_info_->GetFilename() |
| 2313 | << ". No methods will be compiled"; |
| 2314 | } else if (kDebugProfileGuidedCompilation) { |
| 2315 | LOG(INFO) << "[ProfileGuidedCompilation] " |
| 2316 | << profile_compilation_info_->DumpInfo(); |
| 2317 | } |
| 2318 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2319 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2320 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2321 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2322 | CompileDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2323 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2324 | VLOG(compiler) << "Compile: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2325 | } |
| 2326 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2327 | class CompileClassVisitor : public CompilationVisitor { |
| 2328 | public: |
| 2329 | explicit CompileClassVisitor(const ParallelCompilationManager* manager) : manager_(manager) {} |
| 2330 | |
| 2331 | virtual void Visit(size_t class_def_index) REQUIRES(!Locks::mutator_lock_) OVERRIDE { |
| 2332 | ATRACE_CALL(); |
| 2333 | const DexFile& dex_file = *manager_->GetDexFile(); |
| 2334 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 2335 | ClassLinker* class_linker = manager_->GetClassLinker(); |
| 2336 | jobject jclass_loader = manager_->GetClassLoader(); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2337 | ClassReference ref(&dex_file, class_def_index); |
| 2338 | // Skip compiling classes with generic verifier failures since they will still fail at runtime |
| 2339 | if (manager_->GetCompiler()->verification_results_->IsClassRejected(ref)) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2340 | return; |
| 2341 | } |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2342 | // Use a scoped object access to perform to the quick SkipClass check. |
| 2343 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 2344 | ScopedObjectAccess soa(Thread::Current()); |
| 2345 | StackHandleScope<3> hs(soa.Self()); |
| 2346 | Handle<mirror::ClassLoader> class_loader( |
| 2347 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2348 | Handle<mirror::Class> klass( |
| 2349 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2350 | Handle<mirror::DexCache> dex_cache; |
| 2351 | if (klass.Get() == nullptr) { |
| 2352 | soa.Self()->AssertPendingException(); |
| 2353 | soa.Self()->ClearException(); |
| 2354 | dex_cache = hs.NewHandle(class_linker->FindDexCache(soa.Self(), dex_file)); |
| 2355 | } else if (SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2356 | return; |
| 2357 | } else { |
| 2358 | dex_cache = hs.NewHandle(klass->GetDexCache()); |
| 2359 | } |
| 2360 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2361 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 2362 | if (class_data == nullptr) { |
| 2363 | // empty class, probably a marker interface |
| 2364 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2365 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2366 | |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2367 | // Go to native so that we don't block GC during compilation. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 2368 | ScopedThreadSuspension sts(soa.Self(), kNative); |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2369 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2370 | CompilerDriver* const driver = manager_->GetCompiler(); |
| 2371 | |
| 2372 | // Can we run DEX-to-DEX compiler on this class ? |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2373 | optimizer::DexToDexCompilationLevel dex_to_dex_compilation_level = |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2374 | GetDexToDexCompilationLevel(soa.Self(), *driver, jclass_loader, dex_file, class_def); |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2375 | |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2376 | ClassDataItemIterator it(dex_file, class_data); |
| 2377 | // Skip fields |
| 2378 | while (it.HasNextStaticField()) { |
| 2379 | it.Next(); |
| 2380 | } |
| 2381 | while (it.HasNextInstanceField()) { |
| 2382 | it.Next(); |
| 2383 | } |
| 2384 | |
| 2385 | bool compilation_enabled = driver->IsClassToCompile( |
| 2386 | dex_file.StringByTypeIdx(class_def.class_idx_)); |
| 2387 | |
| 2388 | // Compile direct methods |
| 2389 | int64_t previous_direct_method_idx = -1; |
| 2390 | while (it.HasNextDirectMethod()) { |
| 2391 | uint32_t method_idx = it.GetMemberIndex(); |
| 2392 | if (method_idx == previous_direct_method_idx) { |
| 2393 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2394 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2395 | it.Next(); |
| 2396 | continue; |
| 2397 | } |
| 2398 | previous_direct_method_idx = method_idx; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2399 | CompileMethod(soa.Self(), driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2400 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2401 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2402 | compilation_enabled, dex_cache); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2403 | it.Next(); |
| 2404 | } |
| 2405 | // Compile virtual methods |
| 2406 | int64_t previous_virtual_method_idx = -1; |
| 2407 | while (it.HasNextVirtualMethod()) { |
| 2408 | uint32_t method_idx = it.GetMemberIndex(); |
| 2409 | if (method_idx == previous_virtual_method_idx) { |
| 2410 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2411 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2412 | it.Next(); |
| 2413 | continue; |
| 2414 | } |
| 2415 | previous_virtual_method_idx = method_idx; |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2416 | CompileMethod(soa.Self(), driver, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2417 | it.GetMethodInvokeType(class_def), class_def_index, |
| 2418 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
Mathieu Chartier | 736b560 | 2015-09-02 14:54:11 -0700 | [diff] [blame] | 2419 | compilation_enabled, dex_cache); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2420 | it.Next(); |
| 2421 | } |
| 2422 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2423 | } |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2424 | |
| 2425 | private: |
| 2426 | const ParallelCompilationManager* const manager_; |
| 2427 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2428 | |
| 2429 | void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2430 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2431 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2432 | TimingLogger::ScopedTiming t("Compile Dex File", timings); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2433 | ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2434 | &dex_file, dex_files, thread_pool); |
Mathieu Chartier | 9044347 | 2015-07-16 20:32:27 -0700 | [diff] [blame] | 2435 | CompileClassVisitor visitor(&context); |
| 2436 | context.ForAll(0, dex_file.NumClassDefs(), &visitor, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2437 | } |
| 2438 | |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2439 | void CompilerDriver::AddCompiledMethod(const MethodReference& method_ref, |
| 2440 | CompiledMethod* const compiled_method, |
| 2441 | size_t non_relative_linker_patch_count) { |
| 2442 | DCHECK(GetCompiledMethod(method_ref) == nullptr) |
| 2443 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
| 2444 | { |
| 2445 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2446 | compiled_methods_.Put(method_ref, compiled_method); |
| 2447 | non_relative_linker_patch_count_ += non_relative_linker_patch_count; |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2448 | } |
Andreas Gampe | 5eb0d38 | 2015-07-23 01:19:26 -0700 | [diff] [blame] | 2449 | DCHECK(GetCompiledMethod(method_ref) != nullptr) |
| 2450 | << PrettyMethod(method_ref.dex_method_index, *method_ref.dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2451 | } |
| 2452 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2453 | void CompilerDriver::RemoveCompiledMethod(const MethodReference& method_ref) { |
| 2454 | CompiledMethod* compiled_method = nullptr; |
| 2455 | { |
| 2456 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2457 | auto it = compiled_methods_.find(method_ref); |
| 2458 | if (it != compiled_methods_.end()) { |
| 2459 | compiled_method = it->second; |
| 2460 | compiled_methods_.erase(it); |
| 2461 | } |
| 2462 | } |
| 2463 | if (compiled_method != nullptr) { |
| 2464 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, compiled_method); |
| 2465 | } |
| 2466 | } |
| 2467 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2468 | CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { |
| 2469 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2470 | ClassTable::const_iterator it = compiled_classes_.find(ref); |
| 2471 | if (it == compiled_classes_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2472 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2473 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2474 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2475 | return it->second; |
| 2476 | } |
| 2477 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2478 | void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { |
| 2479 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2480 | auto it = compiled_classes_.find(ref); |
| 2481 | if (it == compiled_classes_.end() || it->second->GetStatus() != status) { |
| 2482 | // An entry doesn't exist or the status is lower than the new status. |
| 2483 | if (it != compiled_classes_.end()) { |
| 2484 | CHECK_GT(status, it->second->GetStatus()); |
| 2485 | delete it->second; |
| 2486 | } |
| 2487 | switch (status) { |
| 2488 | case mirror::Class::kStatusNotReady: |
| 2489 | case mirror::Class::kStatusError: |
| 2490 | case mirror::Class::kStatusRetryVerificationAtRuntime: |
| 2491 | case mirror::Class::kStatusVerified: |
| 2492 | case mirror::Class::kStatusInitialized: |
| 2493 | break; // Expected states. |
| 2494 | default: |
| 2495 | LOG(FATAL) << "Unexpected class status for class " |
| 2496 | << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) |
| 2497 | << " of " << status; |
| 2498 | } |
| 2499 | CompiledClass* compiled_class = new CompiledClass(status); |
| 2500 | compiled_classes_.Overwrite(ref, compiled_class); |
| 2501 | } |
| 2502 | } |
| 2503 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2504 | CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { |
| 2505 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2506 | MethodTable::const_iterator it = compiled_methods_.find(ref); |
| 2507 | if (it == compiled_methods_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2508 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2509 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2510 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2511 | return it->second; |
| 2512 | } |
| 2513 | |
Calin Juravle | f1c6d9e | 2015-04-13 18:42:21 +0100 | [diff] [blame] | 2514 | bool CompilerDriver::IsMethodVerifiedWithoutFailures(uint32_t method_idx, |
| 2515 | uint16_t class_def_idx, |
| 2516 | const DexFile& dex_file) const { |
| 2517 | const VerifiedMethod* verified_method = GetVerifiedMethod(&dex_file, method_idx); |
| 2518 | if (verified_method != nullptr) { |
| 2519 | return !verified_method->HasVerificationFailures(); |
| 2520 | } |
| 2521 | |
| 2522 | // If we can't find verification metadata, check if this is a system class (we trust that system |
| 2523 | // classes have their methods verified). If it's not, be conservative and assume the method |
| 2524 | // has not been verified successfully. |
| 2525 | |
| 2526 | // TODO: When compiling the boot image it should be safe to assume that everything is verified, |
| 2527 | // even if methods are not found in the verification cache. |
| 2528 | const char* descriptor = dex_file.GetClassDescriptor(dex_file.GetClassDef(class_def_idx)); |
| 2529 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2530 | Thread* self = Thread::Current(); |
| 2531 | ScopedObjectAccess soa(self); |
| 2532 | bool is_system_class = class_linker->FindSystemClass(self, descriptor) != nullptr; |
| 2533 | if (!is_system_class) { |
| 2534 | self->ClearException(); |
| 2535 | } |
| 2536 | return is_system_class; |
| 2537 | } |
| 2538 | |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2539 | size_t CompilerDriver::GetNonRelativeLinkerPatchCount() const { |
| 2540 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2541 | return non_relative_linker_patch_count_; |
| 2542 | } |
| 2543 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2544 | void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2545 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2546 | WriterMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2547 | freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); |
| 2548 | } |
| 2549 | |
| 2550 | bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Calin Juravle | 27df758 | 2015-04-17 19:12:31 +0100 | [diff] [blame] | 2551 | uint16_t class_def_index) const { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2552 | ReaderMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2553 | return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; |
| 2554 | } |
| 2555 | |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2556 | std::string CompilerDriver::GetMemoryUsageString(bool extended) const { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2557 | std::ostringstream oss; |
Mathieu Chartier | 9b34b24 | 2015-03-09 11:30:17 -0700 | [diff] [blame] | 2558 | Runtime* const runtime = Runtime::Current(); |
| 2559 | const ArenaPool* arena_pool = runtime->GetArenaPool(); |
| 2560 | gc::Heap* const heap = runtime->GetHeap(); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2561 | oss << "arena alloc=" << PrettySize(arena_pool->GetBytesAllocated()); |
| 2562 | oss << " java alloc=" << PrettySize(heap->GetBytesAllocated()); |
Elliott Hughes | 7bf5a26 | 2015-04-02 20:55:07 -0700 | [diff] [blame] | 2563 | #if defined(__BIONIC__) || defined(__GLIBC__) |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2564 | struct mallinfo info = mallinfo(); |
| 2565 | const size_t allocated_space = static_cast<size_t>(info.uordblks); |
| 2566 | const size_t free_space = static_cast<size_t>(info.fordblks); |
| 2567 | oss << " native alloc=" << PrettySize(allocated_space) << " free=" |
| 2568 | << PrettySize(free_space); |
| 2569 | #endif |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 2570 | compiled_method_storage_.DumpMemoryUsage(oss, extended); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2571 | return oss.str(); |
| 2572 | } |
| 2573 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 2574 | bool CompilerDriver::IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file) { |
| 2575 | const char* type = dex_file->GetTypeDescriptor(dex_file->GetTypeId(type_index)); |
| 2576 | return strcmp(type, "Ljava/lang/String;") == 0; |
| 2577 | } |
| 2578 | |
| 2579 | bool CompilerDriver::IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset) { |
| 2580 | DexFileMethodInliner* inliner = GetMethodInlinerMap()->GetMethodInliner(dex_file); |
| 2581 | size_t pointer_size = InstructionSetPointerSize(GetInstructionSet()); |
| 2582 | *offset = inliner->GetOffsetForStringInit(method_index, pointer_size); |
| 2583 | return inliner->IsStringInitMethodIndex(method_index); |
| 2584 | } |
| 2585 | |
Jeff Hao | dcdc85b | 2015-12-04 14:06:18 -0800 | [diff] [blame] | 2586 | bool CompilerDriver::MayInlineInternal(const DexFile* inlined_from, |
| 2587 | const DexFile* inlined_into) const { |
| 2588 | // We're not allowed to inline across dex files if we're the no-inline-from dex file. |
| 2589 | if (inlined_from != inlined_into && |
| 2590 | compiler_options_->GetNoInlineFromDexFile() == inlined_from) { |
| 2591 | return false; |
| 2592 | } |
| 2593 | |
| 2594 | return true; |
| 2595 | } |
| 2596 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2597 | } // namespace art |