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 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 30 | #include "base/stl_util.h" |
| 31 | #include "base/timing_logger.h" |
| 32 | #include "class_linker.h" |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 33 | #include "compiled_class.h" |
Nicolas Geoffray | b34f69a | 2014-03-07 15:28:39 +0000 | [diff] [blame] | 34 | #include "compiler.h" |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 35 | #include "compiler_driver-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 36 | #include "dex_compilation_unit.h" |
| 37 | #include "dex_file-inl.h" |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 38 | #include "dex/verification_results.h" |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 39 | #include "dex/verified_method.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 40 | #include "dex/quick/dex_file_method_inliner.h" |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 41 | #include "driver/compiler_options.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 42 | #include "jni_internal.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 43 | #include "object_lock.h" |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 44 | #include "profiler.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 45 | #include "runtime.h" |
| 46 | #include "gc/accounting/card_table-inl.h" |
| 47 | #include "gc/accounting/heap_bitmap.h" |
| 48 | #include "gc/space/space.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 49 | #include "mirror/art_field-inl.h" |
| 50 | #include "mirror/art_method-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 51 | #include "mirror/class_loader.h" |
| 52 | #include "mirror/class-inl.h" |
| 53 | #include "mirror/dex_cache-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 54 | #include "mirror/object-inl.h" |
| 55 | #include "mirror/object_array-inl.h" |
| 56 | #include "mirror/throwable.h" |
| 57 | #include "scoped_thread_state_change.h" |
| 58 | #include "ScopedLocalRef.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 59 | #include "handle_scope-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 60 | #include "thread.h" |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 61 | #include "thread_list.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 62 | #include "thread_pool.h" |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 63 | #include "trampolines/trampoline_compiler.h" |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 64 | #include "transaction.h" |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 65 | #include "utils/swap_space.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 66 | #include "verifier/method_verifier.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 67 | #include "verifier/method_verifier-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 68 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 69 | namespace art { |
| 70 | |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 71 | static constexpr bool kTimeCompileMethod = !kIsDebugBuild; |
| 72 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 73 | static double Percentage(size_t x, size_t y) { |
| 74 | return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); |
| 75 | } |
| 76 | |
| 77 | static void DumpStat(size_t x, size_t y, const char* str) { |
| 78 | if (x == 0 && y == 0) { |
| 79 | return; |
| 80 | } |
Ian Rogers | e732ef1 | 2013-10-09 15:22:24 -0700 | [diff] [blame] | 81 | LOG(INFO) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 82 | } |
| 83 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 84 | class CompilerDriver::AOTCompilationStats { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 85 | public: |
| 86 | AOTCompilationStats() |
| 87 | : stats_lock_("AOT compilation statistics lock"), |
| 88 | types_in_dex_cache_(0), types_not_in_dex_cache_(0), |
| 89 | strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), |
| 90 | resolved_types_(0), unresolved_types_(0), |
| 91 | resolved_instance_fields_(0), unresolved_instance_fields_(0), |
| 92 | resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), |
| 93 | type_based_devirtualization_(0), |
| 94 | safe_casts_(0), not_safe_casts_(0) { |
| 95 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 96 | resolved_methods_[i] = 0; |
| 97 | unresolved_methods_[i] = 0; |
| 98 | virtual_made_direct_[i] = 0; |
| 99 | direct_calls_to_boot_[i] = 0; |
| 100 | direct_methods_to_boot_[i] = 0; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | void Dump() { |
| 105 | DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); |
| 106 | DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); |
| 107 | DumpStat(resolved_types_, unresolved_types_, "types resolved"); |
| 108 | DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); |
| 109 | DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, |
| 110 | "static fields resolved"); |
| 111 | DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, |
| 112 | "static fields local to a class"); |
| 113 | DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); |
| 114 | // Note, the code below subtracts the stat value so that when added to the stat value we have |
| 115 | // 100% of samples. TODO: clean this up. |
| 116 | DumpStat(type_based_devirtualization_, |
| 117 | resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + |
| 118 | resolved_methods_[kInterface] + unresolved_methods_[kInterface] - |
| 119 | type_based_devirtualization_, |
| 120 | "virtual/interface calls made direct based on type information"); |
| 121 | |
| 122 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 123 | std::ostringstream oss; |
| 124 | oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; |
| 125 | DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); |
| 126 | if (virtual_made_direct_[i] > 0) { |
| 127 | std::ostringstream oss2; |
| 128 | oss2 << static_cast<InvokeType>(i) << " methods made direct"; |
| 129 | DumpStat(virtual_made_direct_[i], |
| 130 | resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], |
| 131 | oss2.str().c_str()); |
| 132 | } |
| 133 | if (direct_calls_to_boot_[i] > 0) { |
| 134 | std::ostringstream oss2; |
| 135 | oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; |
| 136 | DumpStat(direct_calls_to_boot_[i], |
| 137 | resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], |
| 138 | oss2.str().c_str()); |
| 139 | } |
| 140 | if (direct_methods_to_boot_[i] > 0) { |
| 141 | std::ostringstream oss2; |
| 142 | oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; |
| 143 | DumpStat(direct_methods_to_boot_[i], |
| 144 | resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], |
| 145 | oss2.str().c_str()); |
| 146 | } |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | // Allow lossy statistics in non-debug builds. |
| 151 | #ifndef NDEBUG |
| 152 | #define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) |
| 153 | #else |
| 154 | #define STATS_LOCK() |
| 155 | #endif |
| 156 | |
| 157 | void TypeInDexCache() { |
| 158 | STATS_LOCK(); |
| 159 | types_in_dex_cache_++; |
| 160 | } |
| 161 | |
| 162 | void TypeNotInDexCache() { |
| 163 | STATS_LOCK(); |
| 164 | types_not_in_dex_cache_++; |
| 165 | } |
| 166 | |
| 167 | void StringInDexCache() { |
| 168 | STATS_LOCK(); |
| 169 | strings_in_dex_cache_++; |
| 170 | } |
| 171 | |
| 172 | void StringNotInDexCache() { |
| 173 | STATS_LOCK(); |
| 174 | strings_not_in_dex_cache_++; |
| 175 | } |
| 176 | |
| 177 | void TypeDoesntNeedAccessCheck() { |
| 178 | STATS_LOCK(); |
| 179 | resolved_types_++; |
| 180 | } |
| 181 | |
| 182 | void TypeNeedsAccessCheck() { |
| 183 | STATS_LOCK(); |
| 184 | unresolved_types_++; |
| 185 | } |
| 186 | |
| 187 | void ResolvedInstanceField() { |
| 188 | STATS_LOCK(); |
| 189 | resolved_instance_fields_++; |
| 190 | } |
| 191 | |
| 192 | void UnresolvedInstanceField() { |
| 193 | STATS_LOCK(); |
| 194 | unresolved_instance_fields_++; |
| 195 | } |
| 196 | |
| 197 | void ResolvedLocalStaticField() { |
| 198 | STATS_LOCK(); |
| 199 | resolved_local_static_fields_++; |
| 200 | } |
| 201 | |
| 202 | void ResolvedStaticField() { |
| 203 | STATS_LOCK(); |
| 204 | resolved_static_fields_++; |
| 205 | } |
| 206 | |
| 207 | void UnresolvedStaticField() { |
| 208 | STATS_LOCK(); |
| 209 | unresolved_static_fields_++; |
| 210 | } |
| 211 | |
| 212 | // Indicate that type information from the verifier led to devirtualization. |
| 213 | void PreciseTypeDevirtualization() { |
| 214 | STATS_LOCK(); |
| 215 | type_based_devirtualization_++; |
| 216 | } |
| 217 | |
| 218 | // Indicate that a method of the given type was resolved at compile time. |
| 219 | void ResolvedMethod(InvokeType type) { |
| 220 | DCHECK_LE(type, kMaxInvokeType); |
| 221 | STATS_LOCK(); |
| 222 | resolved_methods_[type]++; |
| 223 | } |
| 224 | |
| 225 | // Indicate that a method of the given type was unresolved at compile time as it was in an |
| 226 | // unknown dex file. |
| 227 | void UnresolvedMethod(InvokeType type) { |
| 228 | DCHECK_LE(type, kMaxInvokeType); |
| 229 | STATS_LOCK(); |
| 230 | unresolved_methods_[type]++; |
| 231 | } |
| 232 | |
| 233 | // Indicate that a type of virtual method dispatch has been converted into a direct method |
| 234 | // dispatch. |
| 235 | void VirtualMadeDirect(InvokeType type) { |
| 236 | DCHECK(type == kVirtual || type == kInterface || type == kSuper); |
| 237 | STATS_LOCK(); |
| 238 | virtual_made_direct_[type]++; |
| 239 | } |
| 240 | |
| 241 | // Indicate that a method of the given type was able to call directly into boot. |
| 242 | void DirectCallsToBoot(InvokeType type) { |
| 243 | DCHECK_LE(type, kMaxInvokeType); |
| 244 | STATS_LOCK(); |
| 245 | direct_calls_to_boot_[type]++; |
| 246 | } |
| 247 | |
| 248 | // Indicate that a method of the given type was able to be resolved directly from boot. |
| 249 | void DirectMethodsToBoot(InvokeType type) { |
| 250 | DCHECK_LE(type, kMaxInvokeType); |
| 251 | STATS_LOCK(); |
| 252 | direct_methods_to_boot_[type]++; |
| 253 | } |
| 254 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 255 | void ProcessedInvoke(InvokeType type, int flags) { |
| 256 | STATS_LOCK(); |
| 257 | if (flags == 0) { |
| 258 | unresolved_methods_[type]++; |
| 259 | } else { |
| 260 | DCHECK_NE((flags & kFlagMethodResolved), 0); |
| 261 | resolved_methods_[type]++; |
| 262 | if ((flags & kFlagVirtualMadeDirect) != 0) { |
| 263 | virtual_made_direct_[type]++; |
| 264 | if ((flags & kFlagPreciseTypeDevirtualization) != 0) { |
| 265 | type_based_devirtualization_++; |
| 266 | } |
| 267 | } else { |
| 268 | DCHECK_EQ((flags & kFlagPreciseTypeDevirtualization), 0); |
| 269 | } |
| 270 | if ((flags & kFlagDirectCallToBoot) != 0) { |
| 271 | direct_calls_to_boot_[type]++; |
| 272 | } |
| 273 | if ((flags & kFlagDirectMethodToBoot) != 0) { |
| 274 | direct_methods_to_boot_[type]++; |
| 275 | } |
| 276 | } |
| 277 | } |
| 278 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 279 | // A check-cast could be eliminated due to verifier type analysis. |
| 280 | void SafeCast() { |
| 281 | STATS_LOCK(); |
| 282 | safe_casts_++; |
| 283 | } |
| 284 | |
| 285 | // A check-cast couldn't be eliminated due to verifier type analysis. |
| 286 | void NotASafeCast() { |
| 287 | STATS_LOCK(); |
| 288 | not_safe_casts_++; |
| 289 | } |
| 290 | |
| 291 | private: |
| 292 | Mutex stats_lock_; |
| 293 | |
| 294 | size_t types_in_dex_cache_; |
| 295 | size_t types_not_in_dex_cache_; |
| 296 | |
| 297 | size_t strings_in_dex_cache_; |
| 298 | size_t strings_not_in_dex_cache_; |
| 299 | |
| 300 | size_t resolved_types_; |
| 301 | size_t unresolved_types_; |
| 302 | |
| 303 | size_t resolved_instance_fields_; |
| 304 | size_t unresolved_instance_fields_; |
| 305 | |
| 306 | size_t resolved_local_static_fields_; |
| 307 | size_t resolved_static_fields_; |
| 308 | size_t unresolved_static_fields_; |
| 309 | // Type based devirtualization for invoke interface and virtual. |
| 310 | size_t type_based_devirtualization_; |
| 311 | |
| 312 | size_t resolved_methods_[kMaxInvokeType + 1]; |
| 313 | size_t unresolved_methods_[kMaxInvokeType + 1]; |
| 314 | size_t virtual_made_direct_[kMaxInvokeType + 1]; |
| 315 | size_t direct_calls_to_boot_[kMaxInvokeType + 1]; |
| 316 | size_t direct_methods_to_boot_[kMaxInvokeType + 1]; |
| 317 | |
| 318 | size_t safe_casts_; |
| 319 | size_t not_safe_casts_; |
| 320 | |
| 321 | DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); |
| 322 | }; |
| 323 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 324 | |
| 325 | extern "C" art::CompiledMethod* ArtCompileDEX(art::CompilerDriver& compiler, |
| 326 | const art::DexFile::CodeItem* code_item, |
| 327 | uint32_t access_flags, |
| 328 | art::InvokeType invoke_type, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 329 | uint16_t class_def_idx, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 330 | uint32_t method_idx, |
| 331 | jobject class_loader, |
| 332 | const art::DexFile& dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 333 | |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 334 | CompilerDriver::CompilerDriver(const CompilerOptions* compiler_options, |
| 335 | VerificationResults* verification_results, |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 336 | DexFileToMethodInlinerMap* method_inliner_map, |
Nicolas Geoffray | b34f69a | 2014-03-07 15:28:39 +0000 | [diff] [blame] | 337 | Compiler::Kind compiler_kind, |
Nicolas Geoffray | f5df897 | 2014-02-14 18:37:08 +0000 | [diff] [blame] | 338 | InstructionSet instruction_set, |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 339 | const InstructionSetFeatures* instruction_set_features, |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 340 | bool image, std::set<std::string>* image_classes, |
| 341 | std::set<std::string>* compiled_classes, size_t thread_count, |
David Brazdil | 866c031 | 2015-01-13 21:21:31 +0000 | [diff] [blame] | 342 | bool dump_stats, bool dump_passes, |
| 343 | const std::string& dump_cfg_file_name, CumulativeLogger* timer, |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 344 | int swap_fd, const std::string& profile_file) |
| 345 | : swap_space_(swap_fd == -1 ? nullptr : new SwapSpace(swap_fd, 10 * MB)), |
| 346 | swap_space_allocator_(new SwapAllocator<void>(swap_space_.get())), |
| 347 | profile_present_(false), compiler_options_(compiler_options), |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 348 | verification_results_(verification_results), |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 349 | method_inliner_map_(method_inliner_map), |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 350 | compiler_(Compiler::Create(this, compiler_kind)), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 351 | instruction_set_(instruction_set), |
Dave Allison | 7020278 | 2013-10-22 17:52:19 -0700 | [diff] [blame] | 352 | instruction_set_features_(instruction_set_features), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 353 | freezing_constructor_lock_("freezing constructor lock"), |
| 354 | compiled_classes_lock_("compiled classes lock"), |
| 355 | compiled_methods_lock_("compiled method lock"), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 356 | compiled_methods_(MethodTable::key_compare()), |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 357 | non_relative_linker_patch_count_(0u), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 358 | image_(image), |
| 359 | image_classes_(image_classes), |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 360 | classes_to_compile_(compiled_classes), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 361 | thread_count_(thread_count), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 362 | stats_(new AOTCompilationStats), |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 363 | dedupe_enabled_(true), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 364 | dump_stats_(dump_stats), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 365 | dump_passes_(dump_passes), |
David Brazdil | 866c031 | 2015-01-13 21:21:31 +0000 | [diff] [blame] | 366 | dump_cfg_file_name_(dump_cfg_file_name), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 367 | timings_logger_(timer), |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 368 | compiler_context_(nullptr), |
Andreas Gampe | 57b3429 | 2015-01-14 15:45:59 -0800 | [diff] [blame] | 369 | support_boot_image_fixup_(instruction_set != kMips && instruction_set != kMips64), |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 370 | dedupe_code_("dedupe code", *swap_space_allocator_), |
| 371 | dedupe_src_mapping_table_("dedupe source mapping table", *swap_space_allocator_), |
| 372 | dedupe_mapping_table_("dedupe mapping table", *swap_space_allocator_), |
| 373 | dedupe_vmap_table_("dedupe vmap table", *swap_space_allocator_), |
| 374 | dedupe_gc_map_("dedupe gc map", *swap_space_allocator_), |
| 375 | dedupe_cfi_info_("dedupe cfi info", *swap_space_allocator_) { |
Brian Carlstrom | 6449c62 | 2014-02-10 23:48:36 -0800 | [diff] [blame] | 376 | DCHECK(compiler_options_ != nullptr); |
| 377 | DCHECK(verification_results_ != nullptr); |
| 378 | DCHECK(method_inliner_map_ != nullptr); |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 379 | |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 380 | dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 381 | |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 382 | compiler_->Init(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 383 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 384 | CHECK_EQ(image_, image_classes_.get() != nullptr); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 385 | |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 386 | // Read the profile file if one is provided. |
| 387 | if (!profile_file.empty()) { |
| 388 | profile_present_ = profile_file_.LoadFile(profile_file); |
| 389 | if (profile_present_) { |
| 390 | LOG(INFO) << "Using profile data form file " << profile_file; |
| 391 | } else { |
| 392 | LOG(INFO) << "Failed to load profile file " << profile_file; |
| 393 | } |
| 394 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 395 | } |
| 396 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 397 | SwapVector<uint8_t>* CompilerDriver::DeduplicateCode(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 398 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 399 | return dedupe_code_.Add(Thread::Current(), code); |
| 400 | } |
| 401 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 402 | SwapSrcMap* CompilerDriver::DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 403 | DCHECK(dedupe_enabled_); |
Yevgeny Rouban | e3ea838 | 2014-08-08 16:29:38 +0700 | [diff] [blame] | 404 | return dedupe_src_mapping_table_.Add(Thread::Current(), src_map); |
| 405 | } |
| 406 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 407 | SwapVector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 408 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 409 | return dedupe_mapping_table_.Add(Thread::Current(), code); |
| 410 | } |
| 411 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 412 | SwapVector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 413 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 414 | return dedupe_vmap_table_.Add(Thread::Current(), code); |
| 415 | } |
| 416 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 417 | SwapVector<uint8_t>* CompilerDriver::DeduplicateGCMap(const ArrayRef<const uint8_t>& code) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 418 | DCHECK(dedupe_enabled_); |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 419 | return dedupe_gc_map_.Add(Thread::Current(), code); |
| 420 | } |
| 421 | |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 422 | SwapVector<uint8_t>* CompilerDriver::DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 423 | DCHECK(dedupe_enabled_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 424 | return dedupe_cfi_info_.Add(Thread::Current(), cfi_info); |
Mark Mendell | ae9fd93 | 2014-02-10 16:14:35 -0800 | [diff] [blame] | 425 | } |
| 426 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 427 | CompilerDriver::~CompilerDriver() { |
| 428 | Thread* self = Thread::Current(); |
| 429 | { |
| 430 | MutexLock mu(self, compiled_classes_lock_); |
| 431 | STLDeleteValues(&compiled_classes_); |
| 432 | } |
| 433 | { |
| 434 | MutexLock mu(self, compiled_methods_lock_); |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 435 | for (auto& pair : compiled_methods_) { |
| 436 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, pair.second); |
| 437 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 438 | } |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 439 | compiler_->UnInit(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 442 | #define CREATE_TRAMPOLINE(type, abi, offset) \ |
Andreas Gampe | af13ad9 | 2014-04-11 12:07:48 -0700 | [diff] [blame] | 443 | if (Is64BitInstructionSet(instruction_set_)) { \ |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 444 | return CreateTrampoline64(instruction_set_, abi, \ |
| 445 | type ## _ENTRYPOINT_OFFSET(8, offset)); \ |
| 446 | } else { \ |
| 447 | return CreateTrampoline32(instruction_set_, abi, \ |
| 448 | type ## _ENTRYPOINT_OFFSET(4, offset)); \ |
| 449 | } |
| 450 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 451 | const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 452 | CREATE_TRAMPOLINE(INTERPRETER, kInterpreterAbi, pInterpreterToInterpreterBridge) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 456 | CREATE_TRAMPOLINE(INTERPRETER, kInterpreterAbi, pInterpreterToCompiledCodeBridge) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 460 | CREATE_TRAMPOLINE(JNI, kJniAbi, pDlsymLookup) |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 461 | } |
| 462 | |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 463 | const std::vector<uint8_t>* CompilerDriver::CreateQuickGenericJniTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 464 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickGenericJniTrampoline) |
Andreas Gampe | 2da8823 | 2014-02-27 12:26:20 -0800 | [diff] [blame] | 465 | } |
| 466 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 467 | const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 468 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickImtConflictTrampoline) |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 469 | } |
| 470 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 471 | const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 472 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickResolutionTrampoline) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 473 | } |
| 474 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 475 | const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 476 | CREATE_TRAMPOLINE(QUICK, kQuickAbi, pQuickToInterpreterBridge) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 477 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 478 | #undef CREATE_TRAMPOLINE |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 479 | |
| 480 | void CompilerDriver::CompileAll(jobject class_loader, |
Brian Carlstrom | 4560248 | 2013-07-21 22:07:55 -0700 | [diff] [blame] | 481 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 482 | TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 483 | DCHECK(!Runtime::Current()->IsStarted()); |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 484 | std::unique_ptr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 485 | VLOG(compiler) << "Before precompile " << GetMemoryUsageString(false); |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 486 | PreCompile(class_loader, dex_files, thread_pool.get(), timings); |
| 487 | Compile(class_loader, dex_files, thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 488 | if (dump_stats_) { |
| 489 | stats_->Dump(); |
| 490 | } |
| 491 | } |
| 492 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 493 | static DexToDexCompilationLevel GetDexToDexCompilationlevel( |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 494 | Thread* self, Handle<mirror::ClassLoader> class_loader, const DexFile& dex_file, |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 495 | const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 496 | auto* const runtime = Runtime::Current(); |
| 497 | if (runtime->UseJit()) { |
| 498 | return kDontDexToDexCompile; |
| 499 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 500 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 501 | ClassLinker* class_linker = runtime->GetClassLinker(); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 502 | mirror::Class* klass = class_linker->FindClass(self, descriptor, class_loader); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 503 | if (klass == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 504 | CHECK(self->IsExceptionPending()); |
| 505 | self->ClearException(); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 506 | return kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 507 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 508 | // DexToDex at the kOptimize level may introduce quickened opcodes, which replace symbolic |
| 509 | // references with actual offsets. We cannot re-verify such instructions. |
| 510 | // |
| 511 | // We store the verification information in the class status in the oat file, which the linker |
| 512 | // can validate (checksums) and use to skip load-time verification. It is thus safe to |
| 513 | // optimize when a class has been fully verified before. |
| 514 | if (klass->IsVerified()) { |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 515 | // Class is verified so we can enable DEX-to-DEX compilation for performance. |
| 516 | return kOptimize; |
| 517 | } else if (klass->IsCompileTimeVerified()) { |
| 518 | // Class verification has soft-failed. Anyway, ensure at least correctness. |
| 519 | DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
| 520 | return kRequired; |
| 521 | } else { |
| 522 | // Class verification has failed: do not run DEX-to-DEX compilation. |
| 523 | return kDontDexToDexCompile; |
| 524 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 525 | } |
| 526 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 527 | void CompilerDriver::CompileOne(Thread* self, mirror::ArtMethod* method, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 528 | DCHECK(!Runtime::Current()->IsStarted()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 529 | jobject jclass_loader; |
| 530 | const DexFile* dex_file; |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 531 | uint16_t class_def_idx; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 532 | uint32_t method_idx = method->GetDexMethodIndex(); |
| 533 | uint32_t access_flags = method->GetAccessFlags(); |
| 534 | InvokeType invoke_type = method->GetInvokeType(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 535 | { |
| 536 | ScopedObjectAccessUnchecked soa(self); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 537 | ScopedLocalRef<jobject> local_class_loader( |
| 538 | soa.Env(), soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 539 | jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); |
| 540 | // Find the dex_file |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 541 | dex_file = method->GetDexFile(); |
| 542 | class_def_idx = method->GetClassDefIndex(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 543 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 544 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 545 | self->TransitionFromRunnableToSuspended(kNative); |
| 546 | |
| 547 | std::vector<const DexFile*> dex_files; |
| 548 | dex_files.push_back(dex_file); |
| 549 | |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 550 | 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] | 551 | PreCompile(jclass_loader, dex_files, thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 552 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 553 | // Can we run DEX-to-DEX compiler on this class ? |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 554 | DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 555 | { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 556 | ScopedObjectAccess soa(self); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 557 | const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 558 | StackHandleScope<1> hs(soa.Self()); |
| 559 | Handle<mirror::ClassLoader> class_loader( |
| 560 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 561 | dex_to_dex_compilation_level = GetDexToDexCompilationlevel(self, class_loader, *dex_file, |
| 562 | class_def); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 563 | } |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 564 | CompileMethod(self, code_item, access_flags, invoke_type, class_def_idx, method_idx, |
| 565 | jclass_loader, *dex_file, dex_to_dex_compilation_level, true); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 566 | |
| 567 | self->GetJniEnv()->DeleteGlobalRef(jclass_loader); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 568 | self->TransitionFromSuspendedToRunnable(); |
Mathieu Chartier | 2535abe | 2015-02-17 10:38:49 -0800 | [diff] [blame] | 569 | } |
| 570 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 571 | CompiledMethod* CompilerDriver::CompileMethod(Thread* self, mirror::ArtMethod* method) { |
| 572 | const uint32_t method_idx = method->GetDexMethodIndex(); |
| 573 | const uint32_t access_flags = method->GetAccessFlags(); |
| 574 | const InvokeType invoke_type = method->GetInvokeType(); |
| 575 | StackHandleScope<1> hs(self); |
| 576 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 577 | method->GetDeclaringClass()->GetClassLoader())); |
| 578 | jobject jclass_loader = class_loader.ToJObject(); |
| 579 | const DexFile* dex_file = method->GetDexFile(); |
| 580 | const uint16_t class_def_idx = method->GetClassDefIndex(); |
| 581 | const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); |
| 582 | DexToDexCompilationLevel dex_to_dex_compilation_level = |
| 583 | GetDexToDexCompilationlevel(self, class_loader, *dex_file, class_def); |
| 584 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
| 585 | self->TransitionFromRunnableToSuspended(kNative); |
| 586 | CompileMethod(self, code_item, access_flags, invoke_type, class_def_idx, method_idx, |
| 587 | jclass_loader, *dex_file, dex_to_dex_compilation_level, true); |
| 588 | auto* compiled_method = GetCompiledMethod(MethodReference(dex_file, method_idx)); |
| 589 | self->TransitionFromSuspendedToRunnable(); |
| 590 | return compiled_method; |
| 591 | } |
| 592 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 593 | 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] | 594 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 595 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 596 | const DexFile* dex_file = dex_files[i]; |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 597 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 598 | ResolveDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 599 | } |
| 600 | } |
| 601 | |
| 602 | 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] | 603 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 604 | LoadImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 605 | VLOG(compiler) << "LoadImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 606 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 607 | Resolve(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 608 | VLOG(compiler) << "Resolve: " << GetMemoryUsageString(false); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 609 | |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 610 | if (!compiler_options_->IsVerificationEnabled()) { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 611 | VLOG(compiler) << "Verify none mode specified, skipping verification."; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 612 | SetVerified(class_loader, dex_files, thread_pool, timings); |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 613 | return; |
| 614 | } |
| 615 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 616 | Verify(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 617 | VLOG(compiler) << "Verify: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 618 | |
| 619 | InitializeClasses(class_loader, dex_files, thread_pool, timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 620 | VLOG(compiler) << "InitializeClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 621 | |
| 622 | UpdateImageClasses(timings); |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 623 | VLOG(compiler) << "UpdateImageClasses: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 624 | } |
| 625 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 626 | bool CompilerDriver::IsImageClass(const char* descriptor) const { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 627 | if (!IsImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 628 | return true; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 629 | } else { |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 630 | return image_classes_->find(descriptor) != image_classes_->end(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 631 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 632 | } |
| 633 | |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 634 | bool CompilerDriver::IsClassToCompile(const char* descriptor) const { |
| 635 | if (!IsImage()) { |
| 636 | return true; |
| 637 | } else { |
| 638 | if (classes_to_compile_ == nullptr) { |
| 639 | return true; |
| 640 | } |
| 641 | return classes_to_compile_->find(descriptor) != classes_to_compile_->end(); |
| 642 | } |
| 643 | } |
| 644 | |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 645 | static void ResolveExceptionsForMethod(MutableHandle<mirror::ArtMethod> method_handle, |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 646 | std::set<std::pair<uint16_t, const DexFile*>>& exceptions_to_resolve) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 647 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 648 | const DexFile::CodeItem* code_item = method_handle->GetCodeItem(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 649 | if (code_item == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 650 | return; // native or abstract method |
| 651 | } |
| 652 | if (code_item->tries_size_ == 0) { |
| 653 | return; // nothing to process |
| 654 | } |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 655 | const uint8_t* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 656 | size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 657 | for (size_t i = 0; i < num_encoded_catch_handlers; i++) { |
| 658 | int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); |
| 659 | bool has_catch_all = false; |
| 660 | if (encoded_catch_handler_size <= 0) { |
| 661 | encoded_catch_handler_size = -encoded_catch_handler_size; |
| 662 | has_catch_all = true; |
| 663 | } |
| 664 | for (int32_t j = 0; j < encoded_catch_handler_size; j++) { |
| 665 | uint16_t encoded_catch_handler_handlers_type_idx = |
| 666 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 667 | // Add to set of types to resolve if not already in the dex cache resolved types |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 668 | if (!method_handle->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 669 | exceptions_to_resolve.insert( |
| 670 | std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 671 | method_handle->GetDexFile())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 672 | } |
| 673 | // ignore address associated with catch handler |
| 674 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 675 | } |
| 676 | if (has_catch_all) { |
| 677 | // ignore catch all address |
| 678 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 679 | } |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) |
| 684 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 685 | std::set<std::pair<uint16_t, const DexFile*>>* exceptions_to_resolve = |
| 686 | reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*>>*>(arg); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 687 | StackHandleScope<1> hs(Thread::Current()); |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 688 | MutableHandle<mirror::ArtMethod> method_handle(hs.NewHandle<mirror::ArtMethod>(nullptr)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 689 | for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 690 | method_handle.Assign(c->GetVirtualMethod(i)); |
| 691 | ResolveExceptionsForMethod(method_handle, *exceptions_to_resolve); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 692 | } |
| 693 | for (size_t i = 0; i < c->NumDirectMethods(); ++i) { |
Ian Rogers | e94652f | 2014-12-02 11:13:19 -0800 | [diff] [blame] | 694 | method_handle.Assign(c->GetDirectMethod(i)); |
| 695 | ResolveExceptionsForMethod(method_handle, *exceptions_to_resolve); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 696 | } |
| 697 | return true; |
| 698 | } |
| 699 | |
| 700 | static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) |
| 701 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 702 | std::set<std::string>* image_classes = reinterpret_cast<std::set<std::string>*>(arg); |
| 703 | std::string temp; |
| 704 | image_classes->insert(klass->GetDescriptor(&temp)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 705 | return true; |
| 706 | } |
| 707 | |
| 708 | // Make a list of descriptors for classes to include in the image |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 709 | void CompilerDriver::LoadImageClasses(TimingLogger* timings) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 710 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 711 | CHECK(timings != nullptr); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 712 | if (!IsImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 713 | return; |
| 714 | } |
| 715 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 716 | TimingLogger::ScopedTiming t("LoadImageClasses", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 717 | // Make a first class to load all classes explicitly listed in the file |
| 718 | Thread* self = Thread::Current(); |
| 719 | ScopedObjectAccess soa(self); |
| 720 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Kenny Root | d518534 | 2014-05-13 14:47:05 -0700 | [diff] [blame] | 721 | CHECK(image_classes_.get() != nullptr); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 722 | for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 723 | const std::string& descriptor(*it); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 724 | StackHandleScope<1> hs(self); |
| 725 | Handle<mirror::Class> klass( |
| 726 | hs.NewHandle(class_linker->FindSystemClass(self, descriptor.c_str()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 727 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 728 | VLOG(compiler) << "Failed to find class " << descriptor; |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 729 | image_classes_->erase(it++); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 730 | self->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 731 | } else { |
| 732 | ++it; |
| 733 | } |
| 734 | } |
| 735 | |
| 736 | // Resolve exception classes referenced by the loaded classes. The catch logic assumes |
| 737 | // exceptions are resolved by the verifier when there is a catch block in an interested method. |
| 738 | // 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] | 739 | std::set<std::pair<uint16_t, const DexFile*>> unresolved_exception_types; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 740 | StackHandleScope<1> hs(self); |
| 741 | Handle<mirror::Class> java_lang_Throwable( |
| 742 | hs.NewHandle(class_linker->FindSystemClass(self, "Ljava/lang/Throwable;"))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 743 | do { |
| 744 | unresolved_exception_types.clear(); |
| 745 | class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, |
| 746 | &unresolved_exception_types); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 747 | for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { |
| 748 | uint16_t exception_type_idx = exception_type.first; |
| 749 | const DexFile* dex_file = exception_type.second; |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 750 | StackHandleScope<2> hs2(self); |
| 751 | Handle<mirror::DexCache> dex_cache(hs2.NewHandle(class_linker->FindDexCache(*dex_file))); |
| 752 | Handle<mirror::Class> klass(hs2.NewHandle( |
Mathieu Chartier | 0cd8135 | 2014-05-22 16:48:55 -0700 | [diff] [blame] | 753 | class_linker->ResolveType(*dex_file, exception_type_idx, dex_cache, |
| 754 | NullHandle<mirror::ClassLoader>()))); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 755 | if (klass.Get() == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 756 | const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); |
| 757 | const char* descriptor = dex_file->GetTypeDescriptor(type_id); |
| 758 | LOG(FATAL) << "Failed to resolve class " << descriptor; |
| 759 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 760 | DCHECK(java_lang_Throwable->IsAssignableFrom(klass.Get())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 761 | } |
| 762 | // Resolving exceptions may load classes that reference more exceptions, iterate until no |
| 763 | // more are found |
| 764 | } while (!unresolved_exception_types.empty()); |
| 765 | |
| 766 | // We walk the roots looking for classes so that we'll pick up the |
| 767 | // above classes plus any classes them depend on such super |
| 768 | // classes, interfaces, and the required ClassLinker roots. |
| 769 | class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); |
| 770 | |
| 771 | CHECK_NE(image_classes_->size(), 0U); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 772 | } |
| 773 | |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 774 | static void MaybeAddToImageClasses(Handle<mirror::Class> c, std::set<std::string>* image_classes) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 775 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 776 | Thread* self = Thread::Current(); |
| 777 | StackHandleScope<1> hs(self); |
| 778 | // 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] | 779 | MutableHandle<mirror::Class> klass(hs.NewHandle(c.Get())); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 780 | std::string temp; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 781 | while (!klass->IsObjectClass()) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 782 | const char* descriptor = klass->GetDescriptor(&temp); |
| 783 | std::pair<std::set<std::string>::iterator, bool> result = image_classes->insert(descriptor); |
| 784 | if (!result.second) { // Previously inserted. |
| 785 | break; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 786 | } |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 787 | VLOG(compiler) << "Adding " << descriptor << " to image classes"; |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 788 | for (size_t i = 0; i < klass->NumDirectInterfaces(); ++i) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 789 | StackHandleScope<1> hs2(self); |
| 790 | MaybeAddToImageClasses(hs2.NewHandle(mirror::Class::GetDirectInterface(self, klass, i)), |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 791 | image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 792 | } |
| 793 | if (klass->IsArrayClass()) { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 794 | StackHandleScope<1> hs2(self); |
| 795 | MaybeAddToImageClasses(hs2.NewHandle(klass->GetComponentType()), image_classes); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 796 | } |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 797 | klass.Assign(klass->GetSuperClass()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 798 | } |
| 799 | } |
| 800 | |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 801 | // Keeps all the data for the update together. Also doubles as the reference visitor. |
| 802 | // Note: we can use object pointers because we suspend all threads. |
| 803 | class ClinitImageUpdate { |
| 804 | public: |
| 805 | static ClinitImageUpdate* Create(std::set<std::string>* image_class_descriptors, Thread* self, |
| 806 | ClassLinker* linker, std::string* error_msg) { |
| 807 | std::unique_ptr<ClinitImageUpdate> res(new ClinitImageUpdate(image_class_descriptors, self, |
| 808 | linker)); |
| 809 | if (res->art_method_class_ == nullptr) { |
| 810 | *error_msg = "Could not find ArtMethod class."; |
| 811 | return nullptr; |
| 812 | } else if (res->dex_cache_class_ == nullptr) { |
| 813 | *error_msg = "Could not find DexCache class."; |
| 814 | return nullptr; |
| 815 | } |
| 816 | |
| 817 | return res.release(); |
| 818 | } |
| 819 | |
| 820 | ~ClinitImageUpdate() { |
| 821 | // Allow others to suspend again. |
| 822 | self_->EndAssertNoThreadSuspension(old_cause_); |
| 823 | } |
| 824 | |
| 825 | // Visitor for VisitReferences. |
| 826 | void operator()(mirror::Object* object, MemberOffset field_offset, bool /* is_static */) const |
| 827 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 828 | mirror::Object* ref = object->GetFieldObject<mirror::Object>(field_offset); |
| 829 | if (ref != nullptr) { |
| 830 | VisitClinitClassesObject(ref); |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | // java.lang.Reference visitor for VisitReferences. |
Andreas Gampe | dc8b63c | 2014-12-02 14:39:52 -0800 | [diff] [blame] | 835 | void operator()(mirror::Class* /* klass */, mirror::Reference* /* ref */) const { |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | void Walk() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 839 | // Use the initial classes as roots for a search. |
| 840 | for (mirror::Class* klass_root : image_classes_) { |
| 841 | VisitClinitClassesObject(klass_root); |
| 842 | } |
| 843 | } |
| 844 | |
| 845 | private: |
| 846 | ClinitImageUpdate(std::set<std::string>* image_class_descriptors, Thread* self, |
| 847 | ClassLinker* linker) |
| 848 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) : |
| 849 | image_class_descriptors_(image_class_descriptors), self_(self) { |
| 850 | CHECK(linker != nullptr); |
| 851 | CHECK(image_class_descriptors != nullptr); |
| 852 | |
| 853 | // Make sure nobody interferes with us. |
| 854 | old_cause_ = self->StartAssertNoThreadSuspension("Boot image closure"); |
| 855 | |
| 856 | // Find the interesting classes. |
Andreas Gampe | dc8b63c | 2014-12-02 14:39:52 -0800 | [diff] [blame] | 857 | art_method_class_ = linker->LookupClass(self, "Ljava/lang/reflect/ArtMethod;", |
| 858 | ComputeModifiedUtf8Hash("Ljava/lang/reflect/ArtMethod;"), nullptr); |
| 859 | dex_cache_class_ = linker->LookupClass(self, "Ljava/lang/DexCache;", |
| 860 | ComputeModifiedUtf8Hash("Ljava/lang/DexCache;"), nullptr); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 861 | |
| 862 | // Find all the already-marked classes. |
| 863 | WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
| 864 | linker->VisitClasses(FindImageClasses, this); |
| 865 | } |
| 866 | |
| 867 | static bool FindImageClasses(mirror::Class* klass, void* arg) |
| 868 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 869 | ClinitImageUpdate* data = reinterpret_cast<ClinitImageUpdate*>(arg); |
| 870 | std::string temp; |
| 871 | const char* name = klass->GetDescriptor(&temp); |
| 872 | if (data->image_class_descriptors_->find(name) != data->image_class_descriptors_->end()) { |
| 873 | data->image_classes_.push_back(klass); |
| 874 | } |
| 875 | |
| 876 | return true; |
| 877 | } |
| 878 | |
| 879 | void VisitClinitClassesObject(mirror::Object* object) const |
| 880 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 881 | DCHECK(object != nullptr); |
| 882 | if (marked_objects_.find(object) != marked_objects_.end()) { |
| 883 | // Already processed. |
| 884 | return; |
| 885 | } |
| 886 | |
| 887 | // Mark it. |
| 888 | marked_objects_.insert(object); |
| 889 | |
| 890 | if (object->IsClass()) { |
| 891 | // If it is a class, add it. |
| 892 | StackHandleScope<1> hs(self_); |
| 893 | MaybeAddToImageClasses(hs.NewHandle(object->AsClass()), image_class_descriptors_); |
| 894 | } else { |
| 895 | // Else visit the object's class. |
| 896 | VisitClinitClassesObject(object->GetClass()); |
| 897 | } |
| 898 | |
| 899 | // If it is not a dex cache or an ArtMethod, visit all references. |
| 900 | mirror::Class* klass = object->GetClass(); |
| 901 | if (klass != art_method_class_ && klass != dex_cache_class_) { |
| 902 | object->VisitReferences<false /* visit class */>(*this, *this); |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | mutable std::unordered_set<mirror::Object*> marked_objects_; |
| 907 | std::set<std::string>* const image_class_descriptors_; |
| 908 | std::vector<mirror::Class*> image_classes_; |
| 909 | const mirror::Class* art_method_class_; |
| 910 | const mirror::Class* dex_cache_class_; |
| 911 | Thread* const self_; |
| 912 | const char* old_cause_; |
| 913 | |
| 914 | DISALLOW_COPY_AND_ASSIGN(ClinitImageUpdate); |
| 915 | }; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 916 | |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 917 | void CompilerDriver::UpdateImageClasses(TimingLogger* timings) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 918 | if (IsImage()) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 919 | TimingLogger::ScopedTiming t("UpdateImageClasses", timings); |
Andreas Gampe | b0f370e | 2014-09-25 22:51:40 -0700 | [diff] [blame] | 920 | |
| 921 | Runtime* current = Runtime::Current(); |
| 922 | |
| 923 | // Suspend all threads. |
| 924 | current->GetThreadList()->SuspendAll(); |
| 925 | |
| 926 | std::string error_msg; |
| 927 | std::unique_ptr<ClinitImageUpdate> update(ClinitImageUpdate::Create(image_classes_.get(), |
| 928 | Thread::Current(), |
| 929 | current->GetClassLinker(), |
| 930 | &error_msg)); |
| 931 | CHECK(update.get() != nullptr) << error_msg; // TODO: Soft failure? |
| 932 | |
| 933 | // Do the marking. |
| 934 | update->Walk(); |
| 935 | |
| 936 | // Resume threads. |
| 937 | current->GetThreadList()->ResumeAll(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 938 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 939 | } |
| 940 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 941 | bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 942 | if (IsImage() && |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 943 | IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { |
Andreas Gampe | 58a5af8 | 2014-07-31 16:23:49 -0700 | [diff] [blame] | 944 | { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 945 | ScopedObjectAccess soa(Thread::Current()); |
| 946 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 947 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 58a5af8 | 2014-07-31 16:23:49 -0700 | [diff] [blame] | 948 | if (resolved_class == nullptr) { |
| 949 | // Erroneous class. |
| 950 | stats_->TypeNotInDexCache(); |
| 951 | return false; |
| 952 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 953 | } |
| 954 | stats_->TypeInDexCache(); |
| 955 | return true; |
| 956 | } else { |
| 957 | stats_->TypeNotInDexCache(); |
| 958 | return false; |
| 959 | } |
| 960 | } |
| 961 | |
| 962 | bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, |
| 963 | uint32_t string_idx) { |
| 964 | // See also Compiler::ResolveDexFile |
| 965 | |
| 966 | bool result = false; |
| 967 | if (IsImage()) { |
| 968 | // We resolve all const-string strings when building for the image. |
| 969 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 970 | StackHandleScope<1> hs(soa.Self()); |
| 971 | Handle<mirror::DexCache> dex_cache( |
| 972 | hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(dex_file))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 973 | Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); |
| 974 | result = true; |
| 975 | } |
| 976 | if (result) { |
| 977 | stats_->StringInDexCache(); |
| 978 | } else { |
| 979 | stats_->StringNotInDexCache(); |
| 980 | } |
| 981 | return result; |
| 982 | } |
| 983 | |
| 984 | bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, |
| 985 | uint32_t type_idx, |
| 986 | bool* type_known_final, bool* type_known_abstract, |
| 987 | bool* equals_referrers_class) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 988 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 989 | *type_known_final = false; |
| 990 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 991 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 992 | *type_known_abstract = false; |
| 993 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 994 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 995 | *equals_referrers_class = false; |
| 996 | } |
| 997 | ScopedObjectAccess soa(Thread::Current()); |
| 998 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 999 | // Get type from dex cache assuming it was populated by the verifier |
| 1000 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1001 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1002 | stats_->TypeNeedsAccessCheck(); |
| 1003 | return false; // Unknown class needs access checks. |
| 1004 | } |
| 1005 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1006 | if (equals_referrers_class != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1007 | *equals_referrers_class = (method_id.class_idx_ == type_idx); |
| 1008 | } |
| 1009 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1010 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1011 | stats_->TypeNeedsAccessCheck(); |
| 1012 | return false; // Incomplete referrer knowledge needs access check. |
| 1013 | } |
| 1014 | // Perform access check, will return true if access is ok or false if we're going to have to |
| 1015 | // check this at runtime (for example for class loaders). |
| 1016 | bool result = referrer_class->CanAccess(resolved_class); |
| 1017 | if (result) { |
| 1018 | stats_->TypeDoesntNeedAccessCheck(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1019 | if (type_known_final != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1020 | *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); |
| 1021 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1022 | if (type_known_abstract != nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1023 | *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); |
| 1024 | } |
| 1025 | } else { |
| 1026 | stats_->TypeNeedsAccessCheck(); |
| 1027 | } |
| 1028 | return result; |
| 1029 | } |
| 1030 | |
| 1031 | bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, |
| 1032 | const DexFile& dex_file, |
| 1033 | uint32_t type_idx) { |
| 1034 | ScopedObjectAccess soa(Thread::Current()); |
| 1035 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 1036 | // Get type from dex cache assuming it was populated by the verifier. |
| 1037 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1038 | if (resolved_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1039 | stats_->TypeNeedsAccessCheck(); |
| 1040 | return false; // Unknown class needs access checks. |
| 1041 | } |
| 1042 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
| 1043 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1044 | if (referrer_class == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1045 | stats_->TypeNeedsAccessCheck(); |
| 1046 | return false; // Incomplete referrer knowledge needs access check. |
| 1047 | } |
| 1048 | // Perform access and instantiable checks, will return true if access is ok or false if we're |
| 1049 | // going to have to check this at runtime (for example for class loaders). |
| 1050 | bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); |
| 1051 | if (result) { |
| 1052 | stats_->TypeDoesntNeedAccessCheck(); |
| 1053 | } else { |
| 1054 | stats_->TypeNeedsAccessCheck(); |
| 1055 | } |
| 1056 | return result; |
| 1057 | } |
| 1058 | |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1059 | bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, |
| 1060 | bool* is_type_initialized, bool* use_direct_type_ptr, |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1061 | uintptr_t* direct_type_ptr, bool* out_is_finalizable) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1062 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1063 | Runtime* runtime = Runtime::Current(); |
| 1064 | mirror::DexCache* dex_cache = runtime->GetClassLinker()->FindDexCache(dex_file); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1065 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 1066 | if (resolved_class == nullptr) { |
| 1067 | return false; |
| 1068 | } |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1069 | if (GetCompilerOptions().GetCompilePic()) { |
| 1070 | // Do not allow a direct class pointer to be used when compiling for position-independent |
| 1071 | return false; |
| 1072 | } |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 1073 | *out_is_finalizable = resolved_class->IsFinalizable(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1074 | gc::Heap* heap = runtime->GetHeap(); |
| 1075 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1076 | const bool support_boot_image_fixup = GetSupportBootImageFixup(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1077 | if (compiling_boot) { |
| 1078 | // boot -> boot class pointers. |
| 1079 | // True if the class is in the image at boot compiling time. |
| 1080 | const bool is_image_class = IsImage() && IsImageClass( |
| 1081 | dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); |
| 1082 | // True if pc relative load works. |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1083 | if (is_image_class && support_boot_image_fixup) { |
| 1084 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1085 | *use_direct_type_ptr = false; |
| 1086 | *direct_type_ptr = 0; |
| 1087 | return true; |
| 1088 | } else { |
| 1089 | return false; |
| 1090 | } |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1091 | } else if (runtime->UseJit() && !heap->IsMovableObject(resolved_class)) { |
| 1092 | *is_type_initialized = resolved_class->IsInitialized(); |
| 1093 | // If the class may move around, then don't embed it as a direct pointer. |
| 1094 | *use_direct_type_ptr = true; |
| 1095 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1096 | return true; |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1097 | } else { |
| 1098 | // True if the class is in the image at app compiling time. |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1099 | const bool class_in_image = heap->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); |
Alex Light | 6e183f2 | 2014-07-18 14:57:04 -0700 | [diff] [blame] | 1100 | if (class_in_image && support_boot_image_fixup) { |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1101 | // boot -> app class pointers. |
| 1102 | *is_type_initialized = resolved_class->IsInitialized(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1103 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1104 | *use_direct_type_ptr = !GetCompilerOptions().GetIncludePatchInformation(); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1105 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 1106 | return true; |
| 1107 | } else { |
| 1108 | // app -> app class pointers. |
| 1109 | // Give up because app does not have an image and class |
| 1110 | // isn't created at compile time. TODO: implement this |
| 1111 | // if/when each app gets an image. |
| 1112 | return false; |
| 1113 | } |
| 1114 | } |
| 1115 | } |
| 1116 | |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1117 | bool CompilerDriver::CanEmbedReferenceTypeInCode(ClassReference* ref, |
| 1118 | bool* use_direct_ptr, |
| 1119 | uintptr_t* direct_type_ptr) { |
| 1120 | CHECK(ref != nullptr); |
| 1121 | CHECK(use_direct_ptr != nullptr); |
| 1122 | CHECK(direct_type_ptr != nullptr); |
| 1123 | |
| 1124 | ScopedObjectAccess soa(Thread::Current()); |
| 1125 | mirror::Class* reference_class = mirror::Reference::GetJavaLangRefReference(); |
Andreas Gampe | 928f72b | 2014-09-09 19:53:48 -0700 | [diff] [blame] | 1126 | bool is_initialized = false; |
Fred Shih | e7f82e2 | 2014-08-06 10:46:37 -0700 | [diff] [blame] | 1127 | bool unused_finalizable; |
| 1128 | // Make sure we have a finished Reference class object before attempting to use it. |
| 1129 | if (!CanEmbedTypeInCode(*reference_class->GetDexCache()->GetDexFile(), |
| 1130 | reference_class->GetDexTypeIndex(), &is_initialized, |
| 1131 | use_direct_ptr, direct_type_ptr, &unused_finalizable) || |
| 1132 | !is_initialized) { |
| 1133 | return false; |
| 1134 | } |
| 1135 | ref->first = &reference_class->GetDexFile(); |
| 1136 | ref->second = reference_class->GetDexClassDefIndex(); |
| 1137 | return true; |
| 1138 | } |
| 1139 | |
| 1140 | uint32_t CompilerDriver::GetReferenceSlowFlagOffset() const { |
| 1141 | ScopedObjectAccess soa(Thread::Current()); |
| 1142 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1143 | DCHECK(klass->IsInitialized()); |
| 1144 | return klass->GetSlowPathFlagOffset().Uint32Value(); |
| 1145 | } |
| 1146 | |
| 1147 | uint32_t CompilerDriver::GetReferenceDisableFlagOffset() const { |
| 1148 | ScopedObjectAccess soa(Thread::Current()); |
| 1149 | mirror::Class* klass = mirror::Reference::GetJavaLangRefReference(); |
| 1150 | DCHECK(klass->IsInitialized()); |
| 1151 | return klass->GetDisableIntrinsicFlagOffset().Uint32Value(); |
| 1152 | } |
| 1153 | |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1154 | void CompilerDriver::ProcessedInstanceField(bool resolved) { |
| 1155 | if (!resolved) { |
| 1156 | stats_->UnresolvedInstanceField(); |
| 1157 | } else { |
| 1158 | stats_->ResolvedInstanceField(); |
| 1159 | } |
| 1160 | } |
| 1161 | |
| 1162 | void CompilerDriver::ProcessedStaticField(bool resolved, bool local) { |
| 1163 | if (!resolved) { |
| 1164 | stats_->UnresolvedStaticField(); |
| 1165 | } else if (local) { |
| 1166 | stats_->ResolvedLocalStaticField(); |
| 1167 | } else { |
| 1168 | stats_->ResolvedStaticField(); |
| 1169 | } |
| 1170 | } |
| 1171 | |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1172 | void CompilerDriver::ProcessedInvoke(InvokeType invoke_type, int flags) { |
| 1173 | stats_->ProcessedInvoke(invoke_type, flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1174 | } |
| 1175 | |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1176 | mirror::ArtField* CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, |
| 1177 | const DexCompilationUnit* mUnit, |
| 1178 | bool is_put, |
| 1179 | const ScopedObjectAccess& soa) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1180 | // Try to resolve the field and compiling method's class. |
| 1181 | mirror::ArtField* resolved_field; |
| 1182 | mirror::Class* referrer_class; |
| 1183 | mirror::DexCache* dex_cache; |
| 1184 | { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1185 | StackHandleScope<3> hs(soa.Self()); |
| 1186 | Handle<mirror::DexCache> dex_cache_handle( |
| 1187 | hs.NewHandle(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()))); |
| 1188 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1189 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
| 1190 | Handle<mirror::ArtField> resolved_field_handle(hs.NewHandle( |
| 1191 | ResolveField(soa, dex_cache_handle, class_loader_handle, mUnit, field_idx, false))); |
| 1192 | referrer_class = (resolved_field_handle.Get() != nullptr) |
| 1193 | ? ResolveCompilingMethodsClass(soa, dex_cache_handle, class_loader_handle, mUnit) : nullptr; |
| 1194 | resolved_field = resolved_field_handle.Get(); |
| 1195 | dex_cache = dex_cache_handle.Get(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1196 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1197 | bool can_link = false; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1198 | if (resolved_field != nullptr && referrer_class != nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1199 | std::pair<bool, bool> fast_path = IsFastInstanceField( |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1200 | dex_cache, referrer_class, resolved_field, field_idx); |
| 1201 | can_link = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1202 | } |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1203 | ProcessedInstanceField(can_link); |
| 1204 | return can_link ? resolved_field : nullptr; |
| 1205 | } |
| 1206 | |
| 1207 | bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
| 1208 | bool is_put, MemberOffset* field_offset, |
| 1209 | bool* is_volatile) { |
| 1210 | ScopedObjectAccess soa(Thread::Current()); |
| 1211 | StackHandleScope<1> hs(soa.Self()); |
| 1212 | Handle<mirror::ArtField> resolved_field = |
| 1213 | hs.NewHandle(ComputeInstanceFieldInfo(field_idx, mUnit, is_put, soa)); |
| 1214 | |
| 1215 | if (resolved_field.Get() == nullptr) { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1216 | // Conservative defaults. |
| 1217 | *is_volatile = true; |
| 1218 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
Nicolas Geoffray | e503832 | 2014-07-04 09:41:32 +0100 | [diff] [blame] | 1219 | return false; |
| 1220 | } else { |
| 1221 | *is_volatile = resolved_field->IsVolatile(); |
| 1222 | *field_offset = resolved_field->GetOffset(); |
| 1223 | return true; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1224 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1225 | } |
| 1226 | |
| 1227 | bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1228 | bool is_put, MemberOffset* field_offset, |
| 1229 | uint32_t* storage_index, bool* is_referrers_class, |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1230 | bool* is_volatile, bool* is_initialized, |
| 1231 | Primitive::Type* type) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1232 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1233 | // Try to resolve the field and compiling method's class. |
| 1234 | mirror::ArtField* resolved_field; |
| 1235 | mirror::Class* referrer_class; |
| 1236 | mirror::DexCache* dex_cache; |
| 1237 | { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1238 | StackHandleScope<3> hs(soa.Self()); |
| 1239 | Handle<mirror::DexCache> dex_cache_handle( |
| 1240 | hs.NewHandle(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()))); |
| 1241 | Handle<mirror::ClassLoader> class_loader_handle( |
| 1242 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
| 1243 | Handle<mirror::ArtField> resolved_field_handle(hs.NewHandle( |
| 1244 | ResolveField(soa, dex_cache_handle, class_loader_handle, mUnit, field_idx, true))); |
| 1245 | referrer_class = (resolved_field_handle.Get() != nullptr) |
| 1246 | ? ResolveCompilingMethodsClass(soa, dex_cache_handle, class_loader_handle, mUnit) : nullptr; |
| 1247 | resolved_field = resolved_field_handle.Get(); |
| 1248 | dex_cache = dex_cache_handle.Get(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1249 | } |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1250 | bool result = false; |
| 1251 | if (resolved_field != nullptr && referrer_class != nullptr) { |
| 1252 | *is_volatile = IsFieldVolatile(resolved_field); |
| 1253 | std::pair<bool, bool> fast_path = IsFastStaticField( |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1254 | dex_cache, referrer_class, resolved_field, field_idx, storage_index); |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1255 | result = is_put ? fast_path.second : fast_path.first; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1256 | } |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1257 | if (result) { |
| 1258 | *field_offset = GetFieldOffset(resolved_field); |
| 1259 | *is_referrers_class = IsStaticFieldInReferrerClass(referrer_class, resolved_field); |
| 1260 | // *is_referrers_class == true implies no worrying about class initialization. |
| 1261 | *is_initialized = (*is_referrers_class) || |
| 1262 | (IsStaticFieldsClassInitialized(referrer_class, resolved_field) && |
| 1263 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index)); |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1264 | *type = resolved_field->GetTypeAsPrimitiveType(); |
Vladimir Marko | 66c6d7b | 2014-10-16 15:41:48 +0100 | [diff] [blame] | 1265 | } else { |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1266 | // Conservative defaults. |
| 1267 | *is_volatile = true; |
| 1268 | *field_offset = MemberOffset(static_cast<size_t>(-1)); |
| 1269 | *storage_index = -1; |
| 1270 | *is_referrers_class = false; |
| 1271 | *is_initialized = false; |
Nicolas Geoffray | 19a19cf | 2014-10-22 16:07:05 +0100 | [diff] [blame] | 1272 | *type = Primitive::kPrimVoid; |
Vladimir Marko | be0e546 | 2014-02-26 11:24:15 +0000 | [diff] [blame] | 1273 | } |
| 1274 | ProcessedStaticField(result, *is_referrers_class); |
| 1275 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1276 | } |
| 1277 | |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1278 | void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, |
| 1279 | bool no_guarantee_of_dex_cache_entry, |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1280 | const mirror::Class* referrer_class, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1281 | mirror::ArtMethod* method, |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1282 | int* stats_flags, |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1283 | MethodReference* target_method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1284 | uintptr_t* direct_code, |
| 1285 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1286 | // For direct and static methods compute possible direct_code and direct_method values, ie |
| 1287 | // an address for the Method* being invoked and an address of the code for that Method*. |
| 1288 | // For interface calls compute a value for direct_method that is the interface method being |
| 1289 | // 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] | 1290 | *direct_code = 0; |
| 1291 | *direct_method = 0; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1292 | Runtime* const runtime = Runtime::Current(); |
| 1293 | gc::Heap* const heap = runtime->GetHeap(); |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 1294 | bool use_dex_cache = GetCompilerOptions().GetCompilePic(); // Off by default |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1295 | const bool compiling_boot = heap->IsCompilingBoot(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1296 | // TODO This is somewhat hacky. We should refactor all of this invoke codepath. |
| 1297 | const bool force_relocations = (compiling_boot || |
| 1298 | GetCompilerOptions().GetIncludePatchInformation()); |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1299 | if (sharp_type != kStatic && sharp_type != kDirect) { |
| 1300 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1301 | } |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 1302 | // TODO: support patching on all architectures. |
| 1303 | use_dex_cache = use_dex_cache || (force_relocations && !support_boot_image_fixup_); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1304 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
| 1305 | bool method_code_in_boot = declaring_class->GetClassLoader() == nullptr; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1306 | if (!use_dex_cache) { |
| 1307 | if (!method_code_in_boot) { |
| 1308 | use_dex_cache = true; |
| 1309 | } else { |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1310 | bool has_clinit_trampoline = |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1311 | method->IsStatic() && !declaring_class->IsInitialized(); |
| 1312 | if (has_clinit_trampoline && declaring_class != referrer_class) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1313 | // Ensure we run the clinit trampoline unless we are invoking a static method in the same |
| 1314 | // class. |
| 1315 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1316 | } |
| 1317 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1318 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1319 | if (method_code_in_boot) { |
| 1320 | *stats_flags |= kFlagDirectCallToBoot | kFlagDirectMethodToBoot; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1321 | } |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1322 | if (!use_dex_cache && force_relocations) { |
Jeff Hao | a0acc2d | 2015-01-27 11:22:04 -0800 | [diff] [blame] | 1323 | bool is_in_image; |
| 1324 | if (IsImage()) { |
| 1325 | is_in_image = IsImageClass(method->GetDeclaringClassDescriptor()); |
| 1326 | } else { |
| 1327 | is_in_image = instruction_set_ != kX86 && instruction_set_ != kX86_64 && |
| 1328 | Runtime::Current()->GetHeap()->FindSpaceFromObject(method->GetDeclaringClass(), |
| 1329 | false)->IsImageSpace(); |
| 1330 | } |
| 1331 | if (!is_in_image) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1332 | // We can only branch directly to Methods that are resolved in the DexCache. |
| 1333 | // Otherwise we won't invoke the resolution trampoline. |
| 1334 | use_dex_cache = true; |
| 1335 | } |
| 1336 | } |
| 1337 | // The method is defined not within this dex file. We need a dex cache slot within the current |
| 1338 | // dex file or direct pointers. |
| 1339 | bool must_use_direct_pointers = false; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1340 | mirror::DexCache* dex_cache = declaring_class->GetDexCache(); |
| 1341 | if (target_method->dex_file == dex_cache->GetDexFile() && |
| 1342 | !(runtime->UseJit() && dex_cache->GetResolvedMethod(method->GetDexMethodIndex()) == nullptr)) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1343 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1344 | } else { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1345 | if (no_guarantee_of_dex_cache_entry) { |
| 1346 | // See if the method is also declared in this dex cache. |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 1347 | uint32_t dex_method_idx = |
| 1348 | method->FindDexMethodIndexInOtherDexFile(*target_method->dex_file, |
| 1349 | target_method->dex_method_index); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1350 | if (dex_method_idx != DexFile::kDexNoIndex) { |
| 1351 | target_method->dex_method_index = dex_method_idx; |
| 1352 | } else { |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1353 | if (force_relocations && !use_dex_cache) { |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1354 | target_method->dex_method_index = method->GetDexMethodIndex(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1355 | target_method->dex_file = dex_cache->GetDexFile(); |
Jeff Hao | 49161ce | 2014-03-12 11:05:25 -0700 | [diff] [blame] | 1356 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1357 | must_use_direct_pointers = true; |
| 1358 | } |
| 1359 | } |
| 1360 | } |
| 1361 | if (use_dex_cache) { |
| 1362 | if (must_use_direct_pointers) { |
| 1363 | // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct |
| 1364 | // pointers are required as the dex cache lacks an appropriate entry. |
| 1365 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1366 | } else { |
| 1367 | *type = sharp_type; |
| 1368 | } |
| 1369 | } else { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1370 | bool method_in_image = heap->FindSpaceFromObject(method, false)->IsImageSpace(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1371 | if (method_in_image || compiling_boot) { |
| 1372 | // We know we must be able to get to the method in the image, so use that pointer. |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1373 | CHECK(!method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1374 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1375 | *direct_method = force_relocations ? -1 : reinterpret_cast<uintptr_t>(method); |
| 1376 | *direct_code = force_relocations ? -1 : compiler_->GetEntryPointOf(method); |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1377 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1378 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1379 | } else if (!must_use_direct_pointers) { |
| 1380 | // Set the code and rely on the dex cache for the method. |
| 1381 | *type = sharp_type; |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1382 | if (force_relocations) { |
| 1383 | *direct_code = -1; |
Brian Carlstrom | 14247b6 | 2015-01-31 21:35:32 -0800 | [diff] [blame] | 1384 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
Alex Light | a59dd80 | 2014-07-02 16:28:08 -0700 | [diff] [blame] | 1385 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1386 | } else { |
| 1387 | *direct_code = compiler_->GetEntryPointOf(method); |
| 1388 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1389 | } else { |
Vladimir Marko | a51a0b0 | 2014-05-21 12:08:39 +0100 | [diff] [blame] | 1390 | // Direct pointers were required but none were available. |
| 1391 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1392 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1397 | bool update_stats, bool enable_devirtualization, |
| 1398 | InvokeType* invoke_type, MethodReference* target_method, |
| 1399 | int* vtable_idx, uintptr_t* direct_code, |
| 1400 | uintptr_t* direct_method) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1401 | InvokeType orig_invoke_type = *invoke_type; |
| 1402 | int stats_flags = 0; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1403 | ScopedObjectAccess soa(Thread::Current()); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1404 | // Try to resolve the method and compiling method's class. |
| 1405 | mirror::ArtMethod* resolved_method; |
| 1406 | mirror::Class* referrer_class; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1407 | StackHandleScope<3> hs(soa.Self()); |
| 1408 | Handle<mirror::DexCache> dex_cache( |
| 1409 | hs.NewHandle(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()))); |
| 1410 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle( |
| 1411 | soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()))); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1412 | { |
| 1413 | uint32_t method_idx = target_method->dex_method_index; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1414 | Handle<mirror::ArtMethod> resolved_method_handle(hs.NewHandle( |
| 1415 | ResolveMethod(soa, dex_cache, class_loader, mUnit, method_idx, orig_invoke_type))); |
| 1416 | referrer_class = (resolved_method_handle.Get() != nullptr) |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1417 | ? ResolveCompilingMethodsClass(soa, dex_cache, class_loader, mUnit) : nullptr; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1418 | resolved_method = resolved_method_handle.Get(); |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1419 | } |
| 1420 | bool result = false; |
| 1421 | if (resolved_method != nullptr) { |
| 1422 | *vtable_idx = GetResolvedMethodVTableIndex(resolved_method, orig_invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1423 | |
Nicolas Geoffray | e53798a | 2014-12-01 10:31:54 +0000 | [diff] [blame] | 1424 | if (enable_devirtualization && mUnit->GetVerifiedMethod() != nullptr) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1425 | const MethodReference* devirt_target = mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); |
| 1426 | |
| 1427 | stats_flags = IsFastInvoke( |
| 1428 | soa, dex_cache, class_loader, mUnit, referrer_class, resolved_method, |
| 1429 | invoke_type, target_method, devirt_target, direct_code, direct_method); |
| 1430 | result = stats_flags != 0; |
| 1431 | } else { |
| 1432 | // Devirtualization not enabled. Inline IsFastInvoke(), dropping the devirtualization parts. |
| 1433 | if (UNLIKELY(referrer_class == nullptr) || |
| 1434 | UNLIKELY(!referrer_class->CanAccessResolvedMethod(resolved_method->GetDeclaringClass(), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1435 | resolved_method, dex_cache.Get(), |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1436 | target_method->dex_method_index)) || |
| 1437 | *invoke_type == kSuper) { |
| 1438 | // Slow path. (Without devirtualization, all super calls go slow path as well.) |
| 1439 | } else { |
| 1440 | // Sharpening failed so generate a regular resolved method dispatch. |
| 1441 | stats_flags = kFlagMethodResolved; |
| 1442 | GetCodeAndMethodForDirectCall(invoke_type, *invoke_type, false, referrer_class, resolved_method, |
| 1443 | &stats_flags, target_method, direct_code, direct_method); |
| 1444 | result = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1445 | } |
| 1446 | } |
| 1447 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1448 | if (!result) { |
| 1449 | // Conservative defaults. |
| 1450 | *vtable_idx = -1; |
| 1451 | *direct_code = 0u; |
| 1452 | *direct_method = 0u; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1453 | } |
| 1454 | if (update_stats) { |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1455 | ProcessedInvoke(orig_invoke_type, stats_flags); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1456 | } |
Vladimir Marko | f096aad | 2014-01-23 15:51:58 +0000 | [diff] [blame] | 1457 | return result; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1458 | } |
| 1459 | |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1460 | const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, |
| 1461 | uint32_t method_idx) const { |
| 1462 | MethodReference ref(dex_file, method_idx); |
| 1463 | return verification_results_->GetVerifiedMethod(ref); |
| 1464 | } |
| 1465 | |
| 1466 | bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1467 | if (!compiler_options_->IsVerificationEnabled()) { |
| 1468 | // If we didn't verify, every cast has to be treated as non-safe. |
| 1469 | return false; |
| 1470 | } |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1471 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
| 1472 | bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1473 | if (result) { |
| 1474 | stats_->SafeCast(); |
| 1475 | } else { |
| 1476 | stats_->NotASafeCast(); |
| 1477 | } |
| 1478 | return result; |
| 1479 | } |
| 1480 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1481 | class ParallelCompilationManager { |
| 1482 | public: |
| 1483 | typedef void Callback(const ParallelCompilationManager* manager, size_t index); |
| 1484 | |
| 1485 | ParallelCompilationManager(ClassLinker* class_linker, |
| 1486 | jobject class_loader, |
| 1487 | CompilerDriver* compiler, |
| 1488 | const DexFile* dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1489 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1490 | ThreadPool* thread_pool) |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1491 | : index_(0), |
| 1492 | class_linker_(class_linker), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1493 | class_loader_(class_loader), |
| 1494 | compiler_(compiler), |
| 1495 | dex_file_(dex_file), |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1496 | dex_files_(dex_files), |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1497 | thread_pool_(thread_pool) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1498 | |
| 1499 | ClassLinker* GetClassLinker() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1500 | CHECK(class_linker_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1501 | return class_linker_; |
| 1502 | } |
| 1503 | |
| 1504 | jobject GetClassLoader() const { |
| 1505 | return class_loader_; |
| 1506 | } |
| 1507 | |
| 1508 | CompilerDriver* GetCompiler() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1509 | CHECK(compiler_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1510 | return compiler_; |
| 1511 | } |
| 1512 | |
| 1513 | const DexFile* GetDexFile() const { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1514 | CHECK(dex_file_ != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1515 | return dex_file_; |
| 1516 | } |
| 1517 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1518 | const std::vector<const DexFile*>& GetDexFiles() const { |
| 1519 | return dex_files_; |
| 1520 | } |
| 1521 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1522 | void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { |
| 1523 | Thread* self = Thread::Current(); |
| 1524 | self->AssertNoPendingException(); |
| 1525 | CHECK_GT(work_units, 0U); |
| 1526 | |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1527 | index_.StoreRelaxed(begin); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1528 | for (size_t i = 0; i < work_units; ++i) { |
Sebastien Hertz | 501baec | 2013-12-13 12:02:36 +0100 | [diff] [blame] | 1529 | thread_pool_->AddTask(self, new ForAllClosure(this, end, callback)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1530 | } |
| 1531 | thread_pool_->StartWorkers(self); |
| 1532 | |
| 1533 | // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker |
| 1534 | // thread destructor's called below perform join). |
| 1535 | CHECK_NE(self->GetState(), kRunnable); |
| 1536 | |
| 1537 | // Wait for all the worker threads to finish. |
| 1538 | thread_pool_->Wait(self, true, false); |
| 1539 | } |
| 1540 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1541 | size_t NextIndex() { |
Ian Rogers | 3e5cf30 | 2014-05-20 16:40:37 -0700 | [diff] [blame] | 1542 | return index_.FetchAndAddSequentiallyConsistent(1); |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1543 | } |
| 1544 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1545 | private: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1546 | class ForAllClosure : public Task { |
| 1547 | public: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1548 | ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1549 | : manager_(manager), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1550 | end_(end), |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1551 | callback_(callback) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1552 | |
| 1553 | virtual void Run(Thread* self) { |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1554 | while (true) { |
| 1555 | const size_t index = manager_->NextIndex(); |
| 1556 | if (UNLIKELY(index >= end_)) { |
| 1557 | break; |
| 1558 | } |
| 1559 | callback_(manager_, index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1560 | self->AssertNoPendingException(); |
| 1561 | } |
| 1562 | } |
| 1563 | |
| 1564 | virtual void Finalize() { |
| 1565 | delete this; |
| 1566 | } |
Brian Carlstrom | 0cd7ec2 | 2013-07-17 23:40:20 -0700 | [diff] [blame] | 1567 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1568 | private: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1569 | ParallelCompilationManager* const manager_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1570 | const size_t end_; |
Bernhard Rosenkränzer | 4605362 | 2013-12-12 02:15:52 +0100 | [diff] [blame] | 1571 | Callback* const callback_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1572 | }; |
| 1573 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1574 | AtomicInteger index_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1575 | ClassLinker* const class_linker_; |
| 1576 | const jobject class_loader_; |
| 1577 | CompilerDriver* const compiler_; |
| 1578 | const DexFile* const dex_file_; |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1579 | const std::vector<const DexFile*>& dex_files_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1580 | ThreadPool* const thread_pool_; |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1581 | |
| 1582 | DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1583 | }; |
| 1584 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1585 | // A fast version of SkipClass above if the class pointer is available |
| 1586 | // that avoids the expensive FindInClassPath search. |
| 1587 | static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) |
| 1588 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1589 | DCHECK(klass != nullptr); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1590 | const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); |
| 1591 | if (&dex_file != &original_dex_file) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1592 | if (class_loader == nullptr) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1593 | LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " |
| 1594 | << dex_file.GetLocation() << " previously found in " |
| 1595 | << original_dex_file.GetLocation(); |
| 1596 | } |
| 1597 | return true; |
| 1598 | } |
| 1599 | return false; |
| 1600 | } |
| 1601 | |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1602 | static void CheckAndClearResolveException(Thread* self) |
| 1603 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 1604 | CHECK(self->IsExceptionPending()); |
| 1605 | mirror::Throwable* exception = self->GetException(nullptr); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1606 | std::string temp; |
| 1607 | const char* descriptor = exception->GetClass()->GetDescriptor(&temp); |
| 1608 | const char* expected_exceptions[] = { |
| 1609 | "Ljava/lang/IllegalAccessError;", |
| 1610 | "Ljava/lang/IncompatibleClassChangeError;", |
| 1611 | "Ljava/lang/InstantiationError;", |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1612 | "Ljava/lang/LinkageError;", |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 1613 | "Ljava/lang/NoClassDefFoundError;", |
| 1614 | "Ljava/lang/NoSuchFieldError;", |
| 1615 | "Ljava/lang/NoSuchMethodError;" |
| 1616 | }; |
| 1617 | bool found = false; |
| 1618 | for (size_t i = 0; (found == false) && (i < arraysize(expected_exceptions)); ++i) { |
| 1619 | if (strcmp(descriptor, expected_exceptions[i]) == 0) { |
| 1620 | found = true; |
| 1621 | } |
| 1622 | } |
| 1623 | if (!found) { |
Brian Carlstrom | 898fcb5 | 2014-08-25 23:07:30 -0700 | [diff] [blame] | 1624 | LOG(FATAL) << "Unexpected exception " << exception->Dump(); |
Mathieu Chartier | 70b6348 | 2014-06-27 17:19:04 -0700 | [diff] [blame] | 1625 | } |
| 1626 | self->ClearException(); |
| 1627 | } |
| 1628 | |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1629 | static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, |
| 1630 | size_t class_def_index) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1631 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1632 | ATRACE_CALL(); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1633 | Thread* self = Thread::Current(); |
| 1634 | jobject jclass_loader = manager->GetClassLoader(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1635 | const DexFile& dex_file = *manager->GetDexFile(); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1636 | ClassLinker* class_linker = manager->GetClassLinker(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1637 | |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1638 | // If an instance field is final then we need to have a barrier on the return, static final |
| 1639 | // fields are assigned within the lock held for class initialization. Conservatively assume |
| 1640 | // constructor barriers are always required. |
| 1641 | bool requires_constructor_barrier = true; |
| 1642 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1643 | // Method and Field are the worst. We can't resolve without either |
| 1644 | // context from the code use (to disambiguate virtual vs direct |
| 1645 | // method and instance vs static field) or from class |
| 1646 | // definitions. While the compiler will resolve what it can as it |
| 1647 | // needs it, here we try to resolve fields and methods used in class |
| 1648 | // definitions, since many of them many never be referenced by |
| 1649 | // generated code. |
| 1650 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1651 | ScopedObjectAccess soa(self); |
| 1652 | StackHandleScope<2> hs(soa.Self()); |
| 1653 | Handle<mirror::ClassLoader> class_loader( |
| 1654 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 1655 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache(dex_file))); |
| 1656 | // Resolve the class. |
| 1657 | mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, |
| 1658 | class_loader); |
| 1659 | bool resolve_fields_and_methods; |
| 1660 | if (klass == nullptr) { |
| 1661 | // Class couldn't be resolved, for example, super-class is in a different dex file. Don't |
| 1662 | // attempt to resolve methods and fields when there is no declaring class. |
| 1663 | CheckAndClearResolveException(soa.Self()); |
| 1664 | resolve_fields_and_methods = false; |
| 1665 | } else { |
| 1666 | // We successfully resolved a class, should we skip it? |
| 1667 | if (SkipClass(jclass_loader, dex_file, klass)) { |
| 1668 | return; |
Brian Carlstrom | cb5f5e5 | 2013-09-23 17:48:16 -0700 | [diff] [blame] | 1669 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1670 | // We want to resolve the methods and fields eagerly. |
| 1671 | resolve_fields_and_methods = true; |
| 1672 | } |
| 1673 | // Note the class_data pointer advances through the headers, |
| 1674 | // static fields, instance fields, direct methods, and virtual |
| 1675 | // methods. |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 1676 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1677 | if (class_data == nullptr) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1678 | // Empty class such as a marker interface. |
| 1679 | requires_constructor_barrier = false; |
| 1680 | } else { |
| 1681 | ClassDataItemIterator it(dex_file, class_data); |
| 1682 | while (it.HasNextStaticField()) { |
| 1683 | if (resolve_fields_and_methods) { |
| 1684 | mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1685 | dex_cache, class_loader, true); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1686 | if (field == nullptr) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1687 | CheckAndClearResolveException(soa.Self()); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1688 | } |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1689 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1690 | it.Next(); |
| 1691 | } |
| 1692 | // We require a constructor barrier if there are final instance fields. |
| 1693 | requires_constructor_barrier = false; |
| 1694 | while (it.HasNextInstanceField()) { |
Andreas Gampe | 5182932 | 2014-08-25 15:05:04 -0700 | [diff] [blame] | 1695 | if (it.MemberIsFinal()) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1696 | requires_constructor_barrier = true; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1697 | } |
| 1698 | if (resolve_fields_and_methods) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1699 | mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1700 | dex_cache, class_loader, false); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1701 | if (field == nullptr) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1702 | CheckAndClearResolveException(soa.Self()); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1703 | } |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1704 | } |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1705 | it.Next(); |
| 1706 | } |
| 1707 | if (resolve_fields_and_methods) { |
| 1708 | while (it.HasNextDirectMethod()) { |
| 1709 | mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), |
| 1710 | dex_cache, class_loader, |
| 1711 | NullHandle<mirror::ArtMethod>(), |
| 1712 | it.GetMethodInvokeType(class_def)); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1713 | if (method == nullptr) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1714 | CheckAndClearResolveException(soa.Self()); |
| 1715 | } |
| 1716 | it.Next(); |
| 1717 | } |
| 1718 | while (it.HasNextVirtualMethod()) { |
| 1719 | mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), |
| 1720 | dex_cache, class_loader, |
| 1721 | NullHandle<mirror::ArtMethod>(), |
| 1722 | it.GetMethodInvokeType(class_def)); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1723 | if (method == nullptr) { |
Ian Rogers | 68b5685 | 2014-08-29 20:19:11 -0700 | [diff] [blame] | 1724 | CheckAndClearResolveException(soa.Self()); |
| 1725 | } |
| 1726 | it.Next(); |
| 1727 | } |
| 1728 | DCHECK(!it.HasNext()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1729 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1730 | } |
| 1731 | if (requires_constructor_barrier) { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1732 | manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1733 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1734 | } |
| 1735 | |
| 1736 | static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) |
| 1737 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
| 1738 | // Class derived values are more complicated, they require the linker and loader. |
| 1739 | ScopedObjectAccess soa(Thread::Current()); |
| 1740 | ClassLinker* class_linker = manager->GetClassLinker(); |
| 1741 | const DexFile& dex_file = *manager->GetDexFile(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1742 | StackHandleScope<2> hs(soa.Self()); |
| 1743 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache(dex_file))); |
| 1744 | Handle<mirror::ClassLoader> class_loader( |
| 1745 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader()))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1746 | mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); |
| 1747 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1748 | if (klass == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1749 | CHECK(soa.Self()->IsExceptionPending()); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1750 | mirror::Throwable* exception = soa.Self()->GetException(nullptr); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1751 | VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 1752 | if (exception->GetClass()->DescriptorEquals("Ljava/lang/OutOfMemoryError;")) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1753 | // There's little point continuing compilation if the heap is exhausted. |
| 1754 | LOG(FATAL) << "Out of memory during type resolution for compilation"; |
| 1755 | } |
| 1756 | soa.Self()->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1757 | } |
| 1758 | } |
| 1759 | |
| 1760 | void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1761 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1762 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1763 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1764 | |
| 1765 | // TODO: we could resolve strings here, although the string table is largely filled with class |
| 1766 | // and method names. |
| 1767 | |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1768 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 1769 | thread_pool); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1770 | if (IsImage()) { |
| 1771 | // For images we resolve all types, such as array, whereas for applications just those with |
| 1772 | // classdefs are resolved by ResolveClassFieldsAndMethods. |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1773 | TimingLogger::ScopedTiming t("Resolve Types", timings); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1774 | context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); |
| 1775 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1776 | |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1777 | TimingLogger::ScopedTiming t("Resolve MethodsAndFields", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1778 | context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1779 | } |
| 1780 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1781 | void CompilerDriver::SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
| 1782 | ThreadPool* thread_pool, TimingLogger* timings) { |
| 1783 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 1784 | const DexFile* dex_file = dex_files[i]; |
| 1785 | CHECK(dex_file != nullptr); |
| 1786 | SetVerifiedDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
| 1787 | } |
| 1788 | } |
| 1789 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1790 | 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] | 1791 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1792 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 1793 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1794 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1795 | VerifyDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1796 | } |
| 1797 | } |
| 1798 | |
| 1799 | static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) |
| 1800 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 1801 | ATRACE_CALL(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1802 | ScopedObjectAccess soa(Thread::Current()); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1803 | const DexFile& dex_file = *manager->GetDexFile(); |
| 1804 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 1805 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 1806 | ClassLinker* class_linker = manager->GetClassLinker(); |
| 1807 | jobject jclass_loader = manager->GetClassLoader(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1808 | StackHandleScope<3> hs(soa.Self()); |
| 1809 | Handle<mirror::ClassLoader> class_loader( |
| 1810 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 1811 | Handle<mirror::Class> klass( |
| 1812 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 1813 | if (klass.Get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1814 | CHECK(soa.Self()->IsExceptionPending()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1815 | soa.Self()->ClearException(); |
| 1816 | |
| 1817 | /* |
| 1818 | * At compile time, we can still structurally verify the class even if FindClass fails. |
| 1819 | * This is to ensure the class is structurally sound for compilation. An unsound class |
| 1820 | * will be rejected by the verifier and later skipped during compilation in the compiler. |
| 1821 | */ |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1822 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(class_linker->FindDexCache(dex_file))); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1823 | std::string error_msg; |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1824 | if (verifier::MethodVerifier::VerifyClass(soa.Self(), &dex_file, dex_cache, class_loader, |
| 1825 | &class_def, true, &error_msg) == |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1826 | verifier::MethodVerifier::kHardFailure) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1827 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1828 | << " because: " << error_msg; |
| 1829 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1830 | } else if (!SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 1831 | CHECK(klass->IsResolved()) << PrettyClass(klass.Get()); |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1832 | class_linker->VerifyClass(soa.Self(), klass); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1833 | |
| 1834 | if (klass->IsErroneous()) { |
| 1835 | // ClassLinker::VerifyClass throws, which isn't useful in the compiler. |
| 1836 | CHECK(soa.Self()->IsExceptionPending()); |
| 1837 | soa.Self()->ClearException(); |
| 1838 | } |
| 1839 | |
| 1840 | CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1841 | << PrettyDescriptor(klass.Get()) << ": state=" << klass->GetStatus(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1842 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1843 | soa.Self()->AssertNoPendingException(); |
| 1844 | } |
| 1845 | |
| 1846 | void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1847 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1848 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1849 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1850 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1851 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 1852 | thread_pool); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1853 | context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1854 | } |
| 1855 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1856 | static void SetVerifiedClass(const ParallelCompilationManager* manager, size_t class_def_index) |
| 1857 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
| 1858 | ATRACE_CALL(); |
| 1859 | ScopedObjectAccess soa(Thread::Current()); |
| 1860 | const DexFile& dex_file = *manager->GetDexFile(); |
| 1861 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 1862 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 1863 | ClassLinker* class_linker = manager->GetClassLinker(); |
| 1864 | jobject jclass_loader = manager->GetClassLoader(); |
| 1865 | StackHandleScope<3> hs(soa.Self()); |
| 1866 | Handle<mirror::ClassLoader> class_loader( |
| 1867 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 1868 | Handle<mirror::Class> klass( |
| 1869 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 1870 | // Class might have failed resolution. Then don't set it to verified. |
| 1871 | if (klass.Get() != nullptr) { |
| 1872 | // Only do this if the class is resolved. If even resolution fails, quickening will go very, |
| 1873 | // very wrong. |
| 1874 | if (klass->IsResolved()) { |
| 1875 | if (klass->GetStatus() < mirror::Class::kStatusVerified) { |
| 1876 | ObjectLock<mirror::Class> lock(soa.Self(), klass); |
| 1877 | klass->SetStatus(mirror::Class::kStatusVerified, soa.Self()); |
| 1878 | } |
| 1879 | // Record the final class status if necessary. |
| 1880 | ClassReference ref(manager->GetDexFile(), class_def_index); |
| 1881 | manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
| 1882 | } |
Andreas Gampe | 61ff009 | 2014-09-16 11:23:23 -0700 | [diff] [blame] | 1883 | } else { |
| 1884 | Thread* self = soa.Self(); |
| 1885 | DCHECK(self->IsExceptionPending()); |
| 1886 | self->ClearException(); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1887 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 1888 | } |
| 1889 | |
| 1890 | void CompilerDriver::SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, |
| 1891 | const std::vector<const DexFile*>& dex_files, |
| 1892 | ThreadPool* thread_pool, TimingLogger* timings) { |
| 1893 | TimingLogger::ScopedTiming t("Verify Dex File", timings); |
| 1894 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1895 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, dex_files, |
| 1896 | thread_pool); |
| 1897 | context.ForAll(0, dex_file.NumClassDefs(), SetVerifiedClass, thread_count_); |
| 1898 | } |
| 1899 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1900 | static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) |
| 1901 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1902 | ATRACE_CALL(); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1903 | jobject jclass_loader = manager->GetClassLoader(); |
| 1904 | const DexFile& dex_file = *manager->GetDexFile(); |
| 1905 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
Jeff Hao | bcdbbfe | 2013-11-08 18:03:22 -0800 | [diff] [blame] | 1906 | const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); |
| 1907 | const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 1908 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1909 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1910 | StackHandleScope<3> hs(soa.Self()); |
| 1911 | Handle<mirror::ClassLoader> class_loader( |
| 1912 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 1913 | Handle<mirror::Class> klass( |
| 1914 | hs.NewHandle(manager->GetClassLinker()->FindClass(soa.Self(), descriptor, class_loader))); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1915 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1916 | if (klass.Get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.Get())) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1917 | // Only try to initialize classes that were successfully verified. |
| 1918 | if (klass->IsVerified()) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1919 | // Attempt to initialize the class but bail if we either need to initialize the super-class |
| 1920 | // or static fields. |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1921 | manager->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1922 | if (!klass->IsInitialized()) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1923 | // We don't want non-trivial class initialization occurring on multiple threads due to |
| 1924 | // deadlock problems. For example, a parent class is initialized (holding its lock) that |
| 1925 | // refers to a sub-class in its static/class initializer causing it to try to acquire the |
| 1926 | // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) |
| 1927 | // after first initializing its parents, whose locks are acquired. This leads to a |
| 1928 | // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. |
| 1929 | // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather |
| 1930 | // than use a special Object for the purpose we use the Class of java.lang.Class. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1931 | Handle<mirror::Class> h_klass(hs.NewHandle(klass->GetClass())); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 1932 | ObjectLock<mirror::Class> lock(soa.Self(), h_klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1933 | // Attempt to initialize allowing initialization of parent classes but still not static |
| 1934 | // fields. |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1935 | manager->GetClassLinker()->EnsureInitialized(soa.Self(), klass, false, true); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1936 | if (!klass->IsInitialized()) { |
| 1937 | // We need to initialize static fields, we only do this for image classes that aren't |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1938 | // marked with the $NoPreloadHolder (which implies this should not be initialized early). |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1939 | bool can_init_static_fields = manager->GetCompiler()->IsImage() && |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1940 | manager->GetCompiler()->IsImageClass(descriptor) && |
| 1941 | !StringPiece(descriptor).ends_with("$NoPreloadHolder;"); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1942 | if (can_init_static_fields) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1943 | VLOG(compiler) << "Initializing: " << descriptor; |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1944 | // TODO multithreading support. We should ensure the current compilation thread has |
| 1945 | // exclusive access to the runtime and the transaction. To achieve this, we could use |
| 1946 | // a ReaderWriterMutex but we're holding the mutator lock so we fail mutex sanity |
| 1947 | // checks in Thread::AssertThreadSuspensionIsAllowable. |
| 1948 | Runtime* const runtime = Runtime::Current(); |
| 1949 | Transaction transaction; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1950 | |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1951 | // Run the class initializer in transaction mode. |
| 1952 | runtime->EnterTransactionMode(&transaction); |
| 1953 | const mirror::Class::Status old_status = klass->GetStatus(); |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1954 | bool success = manager->GetClassLinker()->EnsureInitialized(soa.Self(), klass, true, |
| 1955 | true); |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1956 | // TODO we detach transaction from runtime to indicate we quit the transactional |
| 1957 | // mode which prevents the GC from visiting objects modified during the transaction. |
| 1958 | // 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] | 1959 | |
| 1960 | ScopedAssertNoThreadSuspension ants(soa.Self(), "Transaction end"); |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1961 | runtime->ExitTransactionMode(); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1962 | |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1963 | if (!success) { |
| 1964 | CHECK(soa.Self()->IsExceptionPending()); |
| 1965 | ThrowLocation throw_location; |
| 1966 | mirror::Throwable* exception = soa.Self()->GetException(&throw_location); |
| 1967 | VLOG(compiler) << "Initialization of " << descriptor << " aborted because of " |
| 1968 | << exception->Dump(); |
Andreas Gampe | dbfe254 | 2014-11-25 22:21:42 -0800 | [diff] [blame] | 1969 | std::ostream* file_log = manager->GetCompiler()-> |
| 1970 | GetCompilerOptions().GetInitFailureOutput(); |
| 1971 | if (file_log != nullptr) { |
| 1972 | *file_log << descriptor << "\n"; |
| 1973 | *file_log << exception->Dump() << "\n"; |
| 1974 | } |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1975 | soa.Self()->ClearException(); |
Sebastien Hertz | 1c80bec | 2015-02-03 11:58:06 +0100 | [diff] [blame] | 1976 | transaction.Rollback(); |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1977 | CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1978 | } |
| 1979 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1980 | } |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1981 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1982 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1983 | } |
| 1984 | // Record the final class status if necessary. |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1985 | ClassReference ref(manager->GetDexFile(), class_def_index); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1986 | manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1987 | } |
| 1988 | // Clear any class not found or verification exceptions. |
| 1989 | soa.Self()->ClearException(); |
| 1990 | } |
| 1991 | |
| 1992 | void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1993 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 1994 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 1995 | TimingLogger::ScopedTiming t("InitializeNoClinit", timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1996 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 1997 | ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, dex_files, |
| 1998 | thread_pool); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1999 | size_t thread_count; |
| 2000 | if (IsImage()) { |
| 2001 | // TODO: remove this when transactional mode supports multithreading. |
| 2002 | thread_count = 1U; |
| 2003 | } else { |
| 2004 | thread_count = thread_count_; |
| 2005 | } |
| 2006 | context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2007 | } |
| 2008 | |
| 2009 | void CompilerDriver::InitializeClasses(jobject class_loader, |
| 2010 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2011 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2012 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2013 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2014 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2015 | InitializeClasses(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2016 | } |
Mathieu Chartier | 093ef21 | 2014-08-11 13:52:12 -0700 | [diff] [blame] | 2017 | if (IsImage()) { |
| 2018 | // Prune garbage objects created during aborted transactions. |
| 2019 | Runtime::Current()->GetHeap()->CollectGarbage(true); |
| 2020 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2021 | } |
| 2022 | |
| 2023 | 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] | 2024 | ThreadPool* thread_pool, TimingLogger* timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2025 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 2026 | const DexFile* dex_file = dex_files[i]; |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2027 | CHECK(dex_file != nullptr); |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2028 | CompileDexFile(class_loader, *dex_file, dex_files, thread_pool, timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2029 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2030 | VLOG(compiler) << "Compile: " << GetMemoryUsageString(false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2031 | } |
| 2032 | |
| 2033 | void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 2034 | ATRACE_CALL(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2035 | const DexFile& dex_file = *manager->GetDexFile(); |
| 2036 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2037 | ClassLinker* class_linker = manager->GetClassLinker(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2038 | jobject jclass_loader = manager->GetClassLoader(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2039 | Thread* self = Thread::Current(); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2040 | { |
| 2041 | // Use a scoped object access to perform to the quick SkipClass check. |
| 2042 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2043 | ScopedObjectAccess soa(self); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 2044 | StackHandleScope<3> hs(soa.Self()); |
| 2045 | Handle<mirror::ClassLoader> class_loader( |
| 2046 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| 2047 | Handle<mirror::Class> klass( |
| 2048 | hs.NewHandle(class_linker->FindClass(soa.Self(), descriptor, class_loader))); |
| 2049 | if (klass.Get() == nullptr) { |
| 2050 | CHECK(soa.Self()->IsExceptionPending()); |
| 2051 | soa.Self()->ClearException(); |
| 2052 | } else if (SkipClass(jclass_loader, dex_file, klass.Get())) { |
| 2053 | return; |
| 2054 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2055 | } |
| 2056 | ClassReference ref(&dex_file, class_def_index); |
| 2057 | // Skip compiling classes with generic verifier failures since they will still fail at runtime |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 2058 | if (manager->GetCompiler()->verification_results_->IsClassRejected(ref)) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2059 | return; |
| 2060 | } |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 2061 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2062 | if (class_data == nullptr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2063 | // empty class, probably a marker interface |
| 2064 | return; |
| 2065 | } |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 2066 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2067 | // Can we run DEX-to-DEX compiler on this class ? |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 2068 | DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2069 | { |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2070 | ScopedObjectAccess soa(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2071 | StackHandleScope<1> hs(soa.Self()); |
| 2072 | Handle<mirror::ClassLoader> class_loader( |
| 2073 | hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 2074 | dex_to_dex_compilation_level = GetDexToDexCompilationlevel(soa.Self(), class_loader, dex_file, |
| 2075 | class_def); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2076 | } |
| 2077 | ClassDataItemIterator it(dex_file, class_data); |
| 2078 | // Skip fields |
| 2079 | while (it.HasNextStaticField()) { |
| 2080 | it.Next(); |
| 2081 | } |
| 2082 | while (it.HasNextInstanceField()) { |
| 2083 | it.Next(); |
| 2084 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2085 | CompilerDriver* driver = manager->GetCompiler(); |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 2086 | |
| 2087 | bool compilation_enabled = driver->IsClassToCompile( |
| 2088 | dex_file.StringByTypeIdx(class_def.class_idx_)); |
| 2089 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2090 | // Compile direct methods |
| 2091 | int64_t previous_direct_method_idx = -1; |
| 2092 | while (it.HasNextDirectMethod()) { |
| 2093 | uint32_t method_idx = it.GetMemberIndex(); |
| 2094 | if (method_idx == previous_direct_method_idx) { |
| 2095 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2096 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2097 | it.Next(); |
| 2098 | continue; |
| 2099 | } |
| 2100 | previous_direct_method_idx = method_idx; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2101 | driver->CompileMethod(self, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2102 | it.GetMethodInvokeType(class_def), class_def_index, |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 2103 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
| 2104 | compilation_enabled); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2105 | it.Next(); |
| 2106 | } |
| 2107 | // Compile virtual methods |
| 2108 | int64_t previous_virtual_method_idx = -1; |
| 2109 | while (it.HasNextVirtualMethod()) { |
| 2110 | uint32_t method_idx = it.GetMemberIndex(); |
| 2111 | if (method_idx == previous_virtual_method_idx) { |
| 2112 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 2113 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 2114 | it.Next(); |
| 2115 | continue; |
| 2116 | } |
| 2117 | previous_virtual_method_idx = method_idx; |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2118 | driver->CompileMethod(self, it.GetMethodCodeItem(), it.GetMethodAccessFlags(), |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2119 | it.GetMethodInvokeType(class_def), class_def_index, |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 2120 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level, |
| 2121 | compilation_enabled); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2122 | it.Next(); |
| 2123 | } |
| 2124 | DCHECK(!it.HasNext()); |
| 2125 | } |
| 2126 | |
| 2127 | void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2128 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2129 | ThreadPool* thread_pool, TimingLogger* timings) { |
Mathieu Chartier | f5997b4 | 2014-06-20 10:37:54 -0700 | [diff] [blame] | 2130 | TimingLogger::ScopedTiming t("Compile Dex File", timings); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2131 | ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, |
Andreas Gampe | de7b436 | 2014-07-28 18:38:57 -0700 | [diff] [blame] | 2132 | &dex_file, dex_files, thread_pool); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2133 | context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2134 | } |
| 2135 | |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2136 | // Does the runtime for the InstructionSet provide an implementation returned by |
| 2137 | // GetQuickGenericJniStub allowing down calls that aren't compiled using a JNI compiler? |
| 2138 | static bool InstructionSetHasGenericJniStub(InstructionSet isa) { |
| 2139 | switch (isa) { |
| 2140 | case kArm: |
| 2141 | case kArm64: |
| 2142 | case kThumb2: |
Douglas Leung | 735b855 | 2014-10-31 12:21:40 -0700 | [diff] [blame] | 2143 | case kMips: |
Andreas Gampe | 57b3429 | 2015-01-14 15:45:59 -0800 | [diff] [blame] | 2144 | case kMips64: |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2145 | case kX86: |
| 2146 | case kX86_64: return true; |
| 2147 | default: return false; |
| 2148 | } |
| 2149 | } |
| 2150 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2151 | void CompilerDriver::CompileMethod(Thread* self, const DexFile::CodeItem* code_item, |
| 2152 | uint32_t access_flags, InvokeType invoke_type, |
| 2153 | uint16_t class_def_idx, uint32_t method_idx, |
| 2154 | jobject class_loader, const DexFile& dex_file, |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 2155 | DexToDexCompilationLevel dex_to_dex_compilation_level, |
| 2156 | bool compilation_enabled) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2157 | CompiledMethod* compiled_method = nullptr; |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 2158 | uint64_t start_ns = kTimeCompileMethod ? NanoTime() : 0; |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2159 | MethodReference method_ref(&dex_file, method_idx); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2160 | |
| 2161 | if ((access_flags & kAccNative) != 0) { |
Ian Rogers | 0188ab7 | 2014-03-17 16:51:53 -0700 | [diff] [blame] | 2162 | // Are we interpreting only and have support for generic JNI down calls? |
Jeff Hao | 4a200f5 | 2014-04-01 14:58:49 -0700 | [diff] [blame] | 2163 | if (!compiler_options_->IsCompilationEnabled() && |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2164 | InstructionSetHasGenericJniStub(instruction_set_)) { |
Ian Rogers | 5b27149 | 2014-03-14 13:20:26 -0700 | [diff] [blame] | 2165 | // Leaving this empty will trigger the generic JNI version |
| 2166 | } else { |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 2167 | compiled_method = compiler_->JniCompile(access_flags, method_idx, dex_file); |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2168 | CHECK(compiled_method != nullptr); |
Ian Rogers | 5b27149 | 2014-03-14 13:20:26 -0700 | [diff] [blame] | 2169 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2170 | } else if ((access_flags & kAccAbstract) != 0) { |
Ian Rogers | a4a3f40 | 2014-10-20 18:10:34 -0700 | [diff] [blame] | 2171 | // Abstract methods don't have code. |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2172 | } else { |
Andreas Gampe | 6c170c9 | 2014-12-17 14:35:46 -0800 | [diff] [blame] | 2173 | bool has_verified_method = verification_results_->GetVerifiedMethod(method_ref) != nullptr; |
Andreas Gampe | 4bf3ae9 | 2014-11-11 13:28:29 -0800 | [diff] [blame] | 2174 | bool compile = compilation_enabled && |
Andreas Gampe | 6c170c9 | 2014-12-17 14:35:46 -0800 | [diff] [blame] | 2175 | // Basic checks, e.g., not <clinit>. |
| 2176 | verification_results_->IsCandidateForCompilation(method_ref, access_flags) && |
| 2177 | // Did not fail to create VerifiedMethod metadata. |
| 2178 | has_verified_method; |
Sebastien Hertz | 4d4adb1 | 2013-07-24 16:14:19 +0200 | [diff] [blame] | 2179 | if (compile) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2180 | // NOTE: if compiler declines to compile this method, it will return nullptr. |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 2181 | compiled_method = compiler_->Compile(code_item, access_flags, invoke_type, class_def_idx, |
| 2182 | method_idx, class_loader, dex_file); |
Sebastien Hertz | 17965ed | 2014-04-04 15:59:53 +0200 | [diff] [blame] | 2183 | } |
| 2184 | if (compiled_method == nullptr && dex_to_dex_compilation_level != kDontDexToDexCompile) { |
| 2185 | // TODO: add a command-line option to disable DEX-to-DEX compilation ? |
Andreas Gampe | 6c170c9 | 2014-12-17 14:35:46 -0800 | [diff] [blame] | 2186 | // Do not optimize if a VerifiedMethod is missing. SafeCast elision, for example, relies on |
| 2187 | // it. |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 2188 | (*dex_to_dex_compiler_)(*this, code_item, access_flags, |
| 2189 | invoke_type, class_def_idx, |
| 2190 | method_idx, class_loader, dex_file, |
Andreas Gampe | 6c170c9 | 2014-12-17 14:35:46 -0800 | [diff] [blame] | 2191 | has_verified_method ? dex_to_dex_compilation_level : kRequired); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2192 | } |
| 2193 | } |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 2194 | if (kTimeCompileMethod) { |
| 2195 | uint64_t duration_ns = NanoTime() - start_ns; |
| 2196 | if (duration_ns > MsToNs(compiler_->GetMaximumCompilationTimeBeforeWarning())) { |
| 2197 | LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) |
| 2198 | << " took " << PrettyDuration(duration_ns); |
| 2199 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2200 | } |
| 2201 | |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2202 | if (compiled_method != nullptr) { |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2203 | // Count non-relative linker patches. |
| 2204 | size_t non_relative_linker_patch_count = 0u; |
| 2205 | for (const LinkerPatch& patch : compiled_method->GetPatches()) { |
| 2206 | if (patch.Type() != kLinkerPatchCallRelative) { |
| 2207 | ++non_relative_linker_patch_count; |
| 2208 | } |
| 2209 | } |
Igor Murashkin | d6dee67 | 2014-10-16 18:36:16 -0700 | [diff] [blame] | 2210 | bool compile_pic = GetCompilerOptions().GetCompilePic(); // Off by default |
| 2211 | // When compiling with PIC, there should be zero non-relative linker patches |
| 2212 | CHECK(!compile_pic || non_relative_linker_patch_count == 0u); |
| 2213 | |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2214 | DCHECK(GetCompiledMethod(method_ref) == nullptr) << PrettyMethod(method_idx, dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2215 | { |
| 2216 | MutexLock mu(self, compiled_methods_lock_); |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2217 | compiled_methods_.Put(method_ref, compiled_method); |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2218 | non_relative_linker_patch_count_ += non_relative_linker_patch_count; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2219 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2220 | DCHECK(GetCompiledMethod(method_ref) != nullptr) << PrettyMethod(method_idx, dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2221 | } |
| 2222 | |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2223 | // Done compiling, delete the verified method to reduce native memory usage. |
| 2224 | verification_results_->RemoveVerifiedMethod(method_ref); |
| 2225 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2226 | if (self->IsExceptionPending()) { |
| 2227 | ScopedObjectAccess soa(self); |
| 2228 | LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2229 | << self->GetException(nullptr)->Dump(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2230 | } |
| 2231 | } |
| 2232 | |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 2233 | void CompilerDriver::RemoveCompiledMethod(const MethodReference& method_ref) { |
| 2234 | CompiledMethod* compiled_method = nullptr; |
| 2235 | { |
| 2236 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2237 | auto it = compiled_methods_.find(method_ref); |
| 2238 | if (it != compiled_methods_.end()) { |
| 2239 | compiled_method = it->second; |
| 2240 | compiled_methods_.erase(it); |
| 2241 | } |
| 2242 | } |
| 2243 | if (compiled_method != nullptr) { |
| 2244 | CompiledMethod::ReleaseSwapAllocatedCompiledMethod(this, compiled_method); |
| 2245 | } |
| 2246 | } |
| 2247 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2248 | CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { |
| 2249 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2250 | ClassTable::const_iterator it = compiled_classes_.find(ref); |
| 2251 | if (it == compiled_classes_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2252 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2253 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2254 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2255 | return it->second; |
| 2256 | } |
| 2257 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2258 | void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { |
| 2259 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2260 | auto it = compiled_classes_.find(ref); |
| 2261 | if (it == compiled_classes_.end() || it->second->GetStatus() != status) { |
| 2262 | // An entry doesn't exist or the status is lower than the new status. |
| 2263 | if (it != compiled_classes_.end()) { |
| 2264 | CHECK_GT(status, it->second->GetStatus()); |
| 2265 | delete it->second; |
| 2266 | } |
| 2267 | switch (status) { |
| 2268 | case mirror::Class::kStatusNotReady: |
| 2269 | case mirror::Class::kStatusError: |
| 2270 | case mirror::Class::kStatusRetryVerificationAtRuntime: |
| 2271 | case mirror::Class::kStatusVerified: |
| 2272 | case mirror::Class::kStatusInitialized: |
| 2273 | break; // Expected states. |
| 2274 | default: |
| 2275 | LOG(FATAL) << "Unexpected class status for class " |
| 2276 | << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) |
| 2277 | << " of " << status; |
| 2278 | } |
| 2279 | CompiledClass* compiled_class = new CompiledClass(status); |
| 2280 | compiled_classes_.Overwrite(ref, compiled_class); |
| 2281 | } |
| 2282 | } |
| 2283 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2284 | CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { |
| 2285 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2286 | MethodTable::const_iterator it = compiled_methods_.find(ref); |
| 2287 | if (it == compiled_methods_.end()) { |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2288 | return nullptr; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2289 | } |
Andreas Gampe | 2ed8def | 2014-08-28 14:41:02 -0700 | [diff] [blame] | 2290 | CHECK(it->second != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2291 | return it->second; |
| 2292 | } |
| 2293 | |
Vladimir Marko | f4da675 | 2014-08-01 19:04:18 +0100 | [diff] [blame] | 2294 | size_t CompilerDriver::GetNonRelativeLinkerPatchCount() const { |
| 2295 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2296 | return non_relative_linker_patch_count_; |
| 2297 | } |
| 2298 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2299 | void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2300 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2301 | WriterMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2302 | freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); |
| 2303 | } |
| 2304 | |
| 2305 | bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2306 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2307 | ReaderMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2308 | return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; |
| 2309 | } |
| 2310 | |
| 2311 | bool CompilerDriver::WriteElf(const std::string& android_root, |
| 2312 | bool is_host, |
| 2313 | const std::vector<const art::DexFile*>& dex_files, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2314 | OatWriter* oat_writer, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2315 | art::File* file) |
| 2316 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 72d3262 | 2014-05-06 16:20:11 -0700 | [diff] [blame] | 2317 | return compiler_->WriteElf(file, oat_writer, dex_files, android_root, is_host); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2318 | } |
| 2319 | void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2320 | std::string* target_triple, |
| 2321 | std::string* target_cpu, |
| 2322 | std::string* target_attr) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2323 | switch (instruction_set) { |
| 2324 | case kThumb2: |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2325 | *target_triple = "thumb-none-linux-gnueabi"; |
| 2326 | *target_cpu = "cortex-a9"; |
| 2327 | *target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2328 | break; |
| 2329 | |
| 2330 | case kArm: |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2331 | *target_triple = "armv7-none-linux-gnueabi"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2332 | // TODO: Fix for Nexus S. |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2333 | *target_cpu = "cortex-a9"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2334 | // TODO: Fix for Xoom. |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2335 | *target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2336 | break; |
| 2337 | |
| 2338 | case kX86: |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2339 | *target_triple = "i386-pc-linux-gnu"; |
| 2340 | *target_attr = ""; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2341 | break; |
| 2342 | |
Dmitry Petrochenko | 6a58cb1 | 2014-04-02 17:27:59 +0700 | [diff] [blame] | 2343 | case kX86_64: |
| 2344 | *target_triple = "x86_64-pc-linux-gnu"; |
| 2345 | *target_attr = ""; |
| 2346 | break; |
| 2347 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2348 | case kMips: |
Ian Rogers | 3d50407 | 2014-03-01 09:16:49 -0800 | [diff] [blame] | 2349 | *target_triple = "mipsel-unknown-linux"; |
| 2350 | *target_attr = "mips32r2"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2351 | break; |
| 2352 | |
| 2353 | default: |
| 2354 | LOG(FATAL) << "Unknown instruction set: " << instruction_set; |
| 2355 | } |
| 2356 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2357 | |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2358 | bool CompilerDriver::SkipCompilation(const std::string& method_name) { |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 2359 | if (!profile_present_) { |
Dave Allison | 644789f | 2014-04-10 13:06:10 -0700 | [diff] [blame] | 2360 | return false; |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2361 | } |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 2362 | // First find the method in the profile file. |
| 2363 | ProfileFile::ProfileData data; |
| 2364 | if (!profile_file_.GetProfileData(&data, method_name)) { |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2365 | // Not in profile, no information can be determined. |
Calin Juravle | 08f7a2d | 2014-06-23 15:22:29 +0100 | [diff] [blame] | 2366 | if (kIsDebugBuild) { |
| 2367 | VLOG(compiler) << "not compiling " << method_name << " because it's not in the profile"; |
| 2368 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2369 | return true; |
| 2370 | } |
Calin Juravle | bb0b53f | 2014-05-23 17:33:29 +0100 | [diff] [blame] | 2371 | |
| 2372 | // Methods that comprise top_k_threshold % of the total samples will be compiled. |
Calin Juravle | f6a4cee | 2014-04-02 17:03:08 +0100 | [diff] [blame] | 2373 | // Compare against the start of the topK percentage bucket just in case the threshold |
Calin Juravle | 04ff226 | 2014-04-02 19:08:47 +0100 | [diff] [blame] | 2374 | // falls inside a bucket. |
Calin Juravle | c1b643c | 2014-05-30 23:44:11 +0100 | [diff] [blame] | 2375 | bool compile = data.GetTopKUsedPercentage() - data.GetUsedPercent() |
| 2376 | <= compiler_options_->GetTopKProfileThreshold(); |
Calin Juravle | 08f7a2d | 2014-06-23 15:22:29 +0100 | [diff] [blame] | 2377 | if (kIsDebugBuild) { |
| 2378 | if (compile) { |
| 2379 | LOG(INFO) << "compiling method " << method_name << " because its usage is part of top " |
| 2380 | << data.GetTopKUsedPercentage() << "% with a percent of " << data.GetUsedPercent() << "%" |
| 2381 | << " (topKThreshold=" << compiler_options_->GetTopKProfileThreshold() << ")"; |
| 2382 | } else { |
| 2383 | VLOG(compiler) << "not compiling method " << method_name |
| 2384 | << " because it's not part of leading " << compiler_options_->GetTopKProfileThreshold() |
| 2385 | << "% samples)"; |
| 2386 | } |
Dave Allison | 39c3bfb | 2014-01-28 18:33:52 -0800 | [diff] [blame] | 2387 | } |
| 2388 | return !compile; |
| 2389 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2390 | |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2391 | std::string CompilerDriver::GetMemoryUsageString(bool extended) const { |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2392 | std::ostringstream oss; |
| 2393 | const ArenaPool* arena_pool = GetArenaPool(); |
| 2394 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 2395 | oss << "arena alloc=" << PrettySize(arena_pool->GetBytesAllocated()); |
| 2396 | oss << " java alloc=" << PrettySize(heap->GetBytesAllocated()); |
| 2397 | #ifdef HAVE_MALLOC_H |
| 2398 | struct mallinfo info = mallinfo(); |
| 2399 | const size_t allocated_space = static_cast<size_t>(info.uordblks); |
| 2400 | const size_t free_space = static_cast<size_t>(info.fordblks); |
| 2401 | oss << " native alloc=" << PrettySize(allocated_space) << " free=" |
| 2402 | << PrettySize(free_space); |
| 2403 | #endif |
Andreas Gampe | e21dc3d | 2014-12-08 16:59:43 -0800 | [diff] [blame] | 2404 | if (swap_space_.get() != nullptr) { |
| 2405 | oss << " swap=" << PrettySize(swap_space_->GetSize()); |
| 2406 | } |
Andreas Gampe | 8d295f8 | 2015-01-20 14:50:21 -0800 | [diff] [blame] | 2407 | if (extended) { |
| 2408 | oss << "\nCode dedupe: " << dedupe_code_.DumpStats(); |
| 2409 | oss << "\nMapping table dedupe: " << dedupe_mapping_table_.DumpStats(); |
| 2410 | oss << "\nVmap table dedupe: " << dedupe_vmap_table_.DumpStats(); |
| 2411 | oss << "\nGC map dedupe: " << dedupe_gc_map_.DumpStats(); |
| 2412 | oss << "\nCFI info dedupe: " << dedupe_cfi_info_.DumpStats(); |
| 2413 | } |
Mathieu Chartier | ab972ef | 2014-12-03 17:38:22 -0800 | [diff] [blame] | 2414 | return oss.str(); |
| 2415 | } |
| 2416 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2417 | } // namespace art |