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 | |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 22 | #include <vector> |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 23 | #include <unistd.h> |
| 24 | |
| 25 | #include "base/stl_util.h" |
| 26 | #include "base/timing_logger.h" |
| 27 | #include "class_linker.h" |
| 28 | #include "dex_compilation_unit.h" |
| 29 | #include "dex_file-inl.h" |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 30 | #include "dex/verification_results.h" |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 31 | #include "dex/verified_method.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 32 | #include "dex/quick/dex_file_method_inliner.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 33 | #include "jni_internal.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 34 | #include "object_utils.h" |
| 35 | #include "runtime.h" |
| 36 | #include "gc/accounting/card_table-inl.h" |
| 37 | #include "gc/accounting/heap_bitmap.h" |
| 38 | #include "gc/space/space.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 39 | #include "mirror/art_field-inl.h" |
| 40 | #include "mirror/art_method-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 41 | #include "mirror/class_loader.h" |
| 42 | #include "mirror/class-inl.h" |
| 43 | #include "mirror/dex_cache-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 44 | #include "mirror/object-inl.h" |
| 45 | #include "mirror/object_array-inl.h" |
| 46 | #include "mirror/throwable.h" |
| 47 | #include "scoped_thread_state_change.h" |
| 48 | #include "ScopedLocalRef.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 49 | #include "thread.h" |
| 50 | #include "thread_pool.h" |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 51 | #include "trampolines/trampoline_compiler.h" |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame^] | 52 | #include "transaction.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 53 | #include "verifier/method_verifier.h" |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 54 | #include "verifier/method_verifier-inl.h" |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 55 | |
| 56 | #if defined(ART_USE_PORTABLE_COMPILER) |
| 57 | #include "elf_writer_mclinker.h" |
| 58 | #else |
| 59 | #include "elf_writer_quick.h" |
| 60 | #endif |
| 61 | |
| 62 | namespace art { |
| 63 | |
| 64 | static double Percentage(size_t x, size_t y) { |
| 65 | return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); |
| 66 | } |
| 67 | |
| 68 | static void DumpStat(size_t x, size_t y, const char* str) { |
| 69 | if (x == 0 && y == 0) { |
| 70 | return; |
| 71 | } |
Ian Rogers | e732ef1 | 2013-10-09 15:22:24 -0700 | [diff] [blame] | 72 | LOG(INFO) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | class AOTCompilationStats { |
| 76 | public: |
| 77 | AOTCompilationStats() |
| 78 | : stats_lock_("AOT compilation statistics lock"), |
| 79 | types_in_dex_cache_(0), types_not_in_dex_cache_(0), |
| 80 | strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), |
| 81 | resolved_types_(0), unresolved_types_(0), |
| 82 | resolved_instance_fields_(0), unresolved_instance_fields_(0), |
| 83 | resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), |
| 84 | type_based_devirtualization_(0), |
| 85 | safe_casts_(0), not_safe_casts_(0) { |
| 86 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 87 | resolved_methods_[i] = 0; |
| 88 | unresolved_methods_[i] = 0; |
| 89 | virtual_made_direct_[i] = 0; |
| 90 | direct_calls_to_boot_[i] = 0; |
| 91 | direct_methods_to_boot_[i] = 0; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | void Dump() { |
| 96 | DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); |
| 97 | DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); |
| 98 | DumpStat(resolved_types_, unresolved_types_, "types resolved"); |
| 99 | DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); |
| 100 | DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, |
| 101 | "static fields resolved"); |
| 102 | DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, |
| 103 | "static fields local to a class"); |
| 104 | DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); |
| 105 | // Note, the code below subtracts the stat value so that when added to the stat value we have |
| 106 | // 100% of samples. TODO: clean this up. |
| 107 | DumpStat(type_based_devirtualization_, |
| 108 | resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + |
| 109 | resolved_methods_[kInterface] + unresolved_methods_[kInterface] - |
| 110 | type_based_devirtualization_, |
| 111 | "virtual/interface calls made direct based on type information"); |
| 112 | |
| 113 | for (size_t i = 0; i <= kMaxInvokeType; i++) { |
| 114 | std::ostringstream oss; |
| 115 | oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; |
| 116 | DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); |
| 117 | if (virtual_made_direct_[i] > 0) { |
| 118 | std::ostringstream oss2; |
| 119 | oss2 << static_cast<InvokeType>(i) << " methods made direct"; |
| 120 | DumpStat(virtual_made_direct_[i], |
| 121 | resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], |
| 122 | oss2.str().c_str()); |
| 123 | } |
| 124 | if (direct_calls_to_boot_[i] > 0) { |
| 125 | std::ostringstream oss2; |
| 126 | oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; |
| 127 | DumpStat(direct_calls_to_boot_[i], |
| 128 | resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], |
| 129 | oss2.str().c_str()); |
| 130 | } |
| 131 | if (direct_methods_to_boot_[i] > 0) { |
| 132 | std::ostringstream oss2; |
| 133 | oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; |
| 134 | DumpStat(direct_methods_to_boot_[i], |
| 135 | resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], |
| 136 | oss2.str().c_str()); |
| 137 | } |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | // Allow lossy statistics in non-debug builds. |
| 142 | #ifndef NDEBUG |
| 143 | #define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) |
| 144 | #else |
| 145 | #define STATS_LOCK() |
| 146 | #endif |
| 147 | |
| 148 | void TypeInDexCache() { |
| 149 | STATS_LOCK(); |
| 150 | types_in_dex_cache_++; |
| 151 | } |
| 152 | |
| 153 | void TypeNotInDexCache() { |
| 154 | STATS_LOCK(); |
| 155 | types_not_in_dex_cache_++; |
| 156 | } |
| 157 | |
| 158 | void StringInDexCache() { |
| 159 | STATS_LOCK(); |
| 160 | strings_in_dex_cache_++; |
| 161 | } |
| 162 | |
| 163 | void StringNotInDexCache() { |
| 164 | STATS_LOCK(); |
| 165 | strings_not_in_dex_cache_++; |
| 166 | } |
| 167 | |
| 168 | void TypeDoesntNeedAccessCheck() { |
| 169 | STATS_LOCK(); |
| 170 | resolved_types_++; |
| 171 | } |
| 172 | |
| 173 | void TypeNeedsAccessCheck() { |
| 174 | STATS_LOCK(); |
| 175 | unresolved_types_++; |
| 176 | } |
| 177 | |
| 178 | void ResolvedInstanceField() { |
| 179 | STATS_LOCK(); |
| 180 | resolved_instance_fields_++; |
| 181 | } |
| 182 | |
| 183 | void UnresolvedInstanceField() { |
| 184 | STATS_LOCK(); |
| 185 | unresolved_instance_fields_++; |
| 186 | } |
| 187 | |
| 188 | void ResolvedLocalStaticField() { |
| 189 | STATS_LOCK(); |
| 190 | resolved_local_static_fields_++; |
| 191 | } |
| 192 | |
| 193 | void ResolvedStaticField() { |
| 194 | STATS_LOCK(); |
| 195 | resolved_static_fields_++; |
| 196 | } |
| 197 | |
| 198 | void UnresolvedStaticField() { |
| 199 | STATS_LOCK(); |
| 200 | unresolved_static_fields_++; |
| 201 | } |
| 202 | |
| 203 | // Indicate that type information from the verifier led to devirtualization. |
| 204 | void PreciseTypeDevirtualization() { |
| 205 | STATS_LOCK(); |
| 206 | type_based_devirtualization_++; |
| 207 | } |
| 208 | |
| 209 | // Indicate that a method of the given type was resolved at compile time. |
| 210 | void ResolvedMethod(InvokeType type) { |
| 211 | DCHECK_LE(type, kMaxInvokeType); |
| 212 | STATS_LOCK(); |
| 213 | resolved_methods_[type]++; |
| 214 | } |
| 215 | |
| 216 | // Indicate that a method of the given type was unresolved at compile time as it was in an |
| 217 | // unknown dex file. |
| 218 | void UnresolvedMethod(InvokeType type) { |
| 219 | DCHECK_LE(type, kMaxInvokeType); |
| 220 | STATS_LOCK(); |
| 221 | unresolved_methods_[type]++; |
| 222 | } |
| 223 | |
| 224 | // Indicate that a type of virtual method dispatch has been converted into a direct method |
| 225 | // dispatch. |
| 226 | void VirtualMadeDirect(InvokeType type) { |
| 227 | DCHECK(type == kVirtual || type == kInterface || type == kSuper); |
| 228 | STATS_LOCK(); |
| 229 | virtual_made_direct_[type]++; |
| 230 | } |
| 231 | |
| 232 | // Indicate that a method of the given type was able to call directly into boot. |
| 233 | void DirectCallsToBoot(InvokeType type) { |
| 234 | DCHECK_LE(type, kMaxInvokeType); |
| 235 | STATS_LOCK(); |
| 236 | direct_calls_to_boot_[type]++; |
| 237 | } |
| 238 | |
| 239 | // Indicate that a method of the given type was able to be resolved directly from boot. |
| 240 | void DirectMethodsToBoot(InvokeType type) { |
| 241 | DCHECK_LE(type, kMaxInvokeType); |
| 242 | STATS_LOCK(); |
| 243 | direct_methods_to_boot_[type]++; |
| 244 | } |
| 245 | |
| 246 | // A check-cast could be eliminated due to verifier type analysis. |
| 247 | void SafeCast() { |
| 248 | STATS_LOCK(); |
| 249 | safe_casts_++; |
| 250 | } |
| 251 | |
| 252 | // A check-cast couldn't be eliminated due to verifier type analysis. |
| 253 | void NotASafeCast() { |
| 254 | STATS_LOCK(); |
| 255 | not_safe_casts_++; |
| 256 | } |
| 257 | |
| 258 | private: |
| 259 | Mutex stats_lock_; |
| 260 | |
| 261 | size_t types_in_dex_cache_; |
| 262 | size_t types_not_in_dex_cache_; |
| 263 | |
| 264 | size_t strings_in_dex_cache_; |
| 265 | size_t strings_not_in_dex_cache_; |
| 266 | |
| 267 | size_t resolved_types_; |
| 268 | size_t unresolved_types_; |
| 269 | |
| 270 | size_t resolved_instance_fields_; |
| 271 | size_t unresolved_instance_fields_; |
| 272 | |
| 273 | size_t resolved_local_static_fields_; |
| 274 | size_t resolved_static_fields_; |
| 275 | size_t unresolved_static_fields_; |
| 276 | // Type based devirtualization for invoke interface and virtual. |
| 277 | size_t type_based_devirtualization_; |
| 278 | |
| 279 | size_t resolved_methods_[kMaxInvokeType + 1]; |
| 280 | size_t unresolved_methods_[kMaxInvokeType + 1]; |
| 281 | size_t virtual_made_direct_[kMaxInvokeType + 1]; |
| 282 | size_t direct_calls_to_boot_[kMaxInvokeType + 1]; |
| 283 | size_t direct_methods_to_boot_[kMaxInvokeType + 1]; |
| 284 | |
| 285 | size_t safe_casts_; |
| 286 | size_t not_safe_casts_; |
| 287 | |
| 288 | DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); |
| 289 | }; |
| 290 | |
| 291 | extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver); |
Vladimir Marko | e13717e | 2013-11-20 12:44:55 +0000 | [diff] [blame] | 292 | extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& driver); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 293 | |
| 294 | extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver); |
Vladimir Marko | e13717e | 2013-11-20 12:44:55 +0000 | [diff] [blame] | 295 | extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& driver); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 296 | |
| 297 | extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver, |
| 298 | const art::DexFile::CodeItem* code_item, |
| 299 | uint32_t access_flags, |
| 300 | art::InvokeType invoke_type, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 301 | uint16_t class_def_idx, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 302 | uint32_t method_idx, |
| 303 | jobject class_loader, |
| 304 | const art::DexFile& dex_file); |
| 305 | extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler, |
| 306 | const art::DexFile::CodeItem* code_item, |
| 307 | uint32_t access_flags, |
| 308 | art::InvokeType invoke_type, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 309 | uint16_t class_def_idx, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 310 | uint32_t method_idx, |
| 311 | jobject class_loader, |
| 312 | const art::DexFile& dex_file); |
| 313 | |
| 314 | extern "C" art::CompiledMethod* ArtCompileDEX(art::CompilerDriver& compiler, |
| 315 | const art::DexFile::CodeItem* code_item, |
| 316 | uint32_t access_flags, |
| 317 | art::InvokeType invoke_type, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 318 | uint16_t class_def_idx, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 319 | uint32_t method_idx, |
| 320 | jobject class_loader, |
| 321 | const art::DexFile& dex_file); |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 322 | #ifdef ART_SEA_IR_MODE |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 323 | extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler, |
| 324 | const art::DexFile::CodeItem* code_item, |
| 325 | uint32_t access_flags, |
| 326 | art::InvokeType invoke_type, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 327 | uint16_t class_def_idx, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 328 | uint32_t method_idx, |
| 329 | jobject class_loader, |
| 330 | const art::DexFile& dex_file); |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 331 | #endif |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 332 | extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver, |
| 333 | uint32_t access_flags, uint32_t method_idx, |
| 334 | const art::DexFile& dex_file); |
| 335 | |
| 336 | extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler, |
| 337 | uint32_t access_flags, uint32_t method_idx, |
| 338 | const art::DexFile& dex_file); |
| 339 | |
| 340 | extern "C" void compilerLLVMSetBitcodeFileName(art::CompilerDriver& driver, |
| 341 | std::string const& filename); |
| 342 | |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 343 | CompilerDriver::CompilerDriver(VerificationResults* verification_results, |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 344 | DexFileToMethodInlinerMap* method_inliner_map, |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame] | 345 | CompilerBackend compiler_backend, InstructionSet instruction_set, |
Dave Allison | 7020278 | 2013-10-22 17:52:19 -0700 | [diff] [blame] | 346 | InstructionSetFeatures instruction_set_features, |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 347 | bool image, DescriptorSet* image_classes, size_t thread_count, |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 348 | bool dump_stats, bool dump_passes, CumulativeLogger* timer) |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 349 | : verification_results_(verification_results), |
Vladimir Marko | 5816ed4 | 2013-11-27 17:04:20 +0000 | [diff] [blame] | 350 | method_inliner_map_(method_inliner_map), |
Vladimir Marko | 2b5eaa2 | 2013-12-13 13:59:30 +0000 | [diff] [blame] | 351 | compiler_backend_(compiler_backend), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 352 | instruction_set_(instruction_set), |
Dave Allison | 7020278 | 2013-10-22 17:52:19 -0700 | [diff] [blame] | 353 | instruction_set_features_(instruction_set_features), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 354 | freezing_constructor_lock_("freezing constructor lock"), |
| 355 | compiled_classes_lock_("compiled classes lock"), |
| 356 | compiled_methods_lock_("compiled method lock"), |
| 357 | image_(image), |
| 358 | image_classes_(image_classes), |
| 359 | thread_count_(thread_count), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 360 | start_ns_(0), |
| 361 | stats_(new AOTCompilationStats), |
| 362 | dump_stats_(dump_stats), |
Nicolas Geoffray | ea3fa0b | 2014-02-10 11:59:41 +0000 | [diff] [blame] | 363 | dump_passes_(dump_passes), |
| 364 | timings_logger_(timer), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 365 | compiler_library_(NULL), |
| 366 | compiler_(NULL), |
| 367 | compiler_context_(NULL), |
| 368 | jni_compiler_(NULL), |
| 369 | compiler_enable_auto_elf_loading_(NULL), |
| 370 | compiler_get_method_code_addr_(NULL), |
Mark Mendell | 55d0eac | 2014-02-06 11:02:52 -0800 | [diff] [blame] | 371 | support_boot_image_fixup_(instruction_set != kMips), |
Ian Rogers | d133b97 | 2013-09-05 11:01:30 -0700 | [diff] [blame] | 372 | dedupe_code_("dedupe code"), |
| 373 | dedupe_mapping_table_("dedupe mapping table"), |
| 374 | dedupe_vmap_table_("dedupe vmap table"), |
| 375 | dedupe_gc_map_("dedupe gc map") { |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 376 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 377 | CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key"); |
| 378 | |
| 379 | // TODO: more work needed to combine initializations and allow per-method backend selection |
| 380 | typedef void (*InitCompilerContextFn)(CompilerDriver&); |
| 381 | InitCompilerContextFn init_compiler_context; |
Brian Carlstrom | 2ce745c | 2013-07-17 17:44:30 -0700 | [diff] [blame] | 382 | if (compiler_backend_ == kPortable) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 383 | // Initialize compiler_context_ |
| 384 | init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext); |
| 385 | compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod); |
| 386 | } else { |
| 387 | init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext); |
| 388 | compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod); |
| 389 | } |
| 390 | |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 391 | dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 392 | |
| 393 | #ifdef ART_SEA_IR_MODE |
| 394 | sea_ir_compiler_ = NULL; |
| 395 | if (Runtime::Current()->IsSeaIRMode()) { |
| 396 | sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod); |
| 397 | } |
| 398 | #endif |
| 399 | |
| 400 | init_compiler_context(*this); |
| 401 | |
| 402 | if (compiler_backend_ == kPortable) { |
| 403 | jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod); |
| 404 | } else { |
| 405 | jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod); |
| 406 | } |
| 407 | |
| 408 | CHECK(!Runtime::Current()->IsStarted()); |
| 409 | if (!image_) { |
| 410 | CHECK(image_classes_.get() == NULL); |
| 411 | } |
| 412 | } |
| 413 | |
Mathieu Chartier | 193bad9 | 2013-08-29 18:46:00 -0700 | [diff] [blame] | 414 | std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) { |
| 415 | return dedupe_code_.Add(Thread::Current(), code); |
| 416 | } |
| 417 | |
| 418 | std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) { |
| 419 | return dedupe_mapping_table_.Add(Thread::Current(), code); |
| 420 | } |
| 421 | |
| 422 | std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) { |
| 423 | return dedupe_vmap_table_.Add(Thread::Current(), code); |
| 424 | } |
| 425 | |
| 426 | std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) { |
| 427 | return dedupe_gc_map_.Add(Thread::Current(), code); |
| 428 | } |
| 429 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 430 | CompilerDriver::~CompilerDriver() { |
| 431 | Thread* self = Thread::Current(); |
| 432 | { |
| 433 | MutexLock mu(self, compiled_classes_lock_); |
| 434 | STLDeleteValues(&compiled_classes_); |
| 435 | } |
| 436 | { |
| 437 | MutexLock mu(self, compiled_methods_lock_); |
| 438 | STLDeleteValues(&compiled_methods_); |
| 439 | } |
| 440 | { |
| 441 | MutexLock mu(self, compiled_methods_lock_); |
| 442 | STLDeleteElements(&code_to_patch_); |
| 443 | } |
| 444 | { |
| 445 | MutexLock mu(self, compiled_methods_lock_); |
| 446 | STLDeleteElements(&methods_to_patch_); |
| 447 | } |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 448 | { |
| 449 | MutexLock mu(self, compiled_methods_lock_); |
| 450 | STLDeleteElements(&classes_to_patch_); |
| 451 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 452 | CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key"); |
| 453 | typedef void (*UninitCompilerContextFn)(CompilerDriver&); |
| 454 | UninitCompilerContextFn uninit_compiler_context; |
| 455 | // Uninitialize compiler_context_ |
| 456 | // TODO: rework to combine initialization/uninitialization |
| 457 | if (compiler_backend_ == kPortable) { |
| 458 | uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext); |
| 459 | } else { |
| 460 | uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext); |
| 461 | } |
| 462 | uninit_compiler_context(*this); |
| 463 | } |
| 464 | |
| 465 | CompilerTls* CompilerDriver::GetTls() { |
| 466 | // Lazily create thread-local storage |
| 467 | CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_)); |
| 468 | if (res == NULL) { |
| 469 | res = new CompilerTls(); |
| 470 | CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls"); |
| 471 | } |
| 472 | return res; |
| 473 | } |
| 474 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 475 | const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { |
| 476 | return CreateTrampoline(instruction_set_, kInterpreterAbi, |
| 477 | INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge)); |
| 478 | } |
| 479 | |
| 480 | const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { |
| 481 | return CreateTrampoline(instruction_set_, kInterpreterAbi, |
| 482 | INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge)); |
| 483 | } |
| 484 | |
| 485 | const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { |
| 486 | return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup)); |
| 487 | } |
| 488 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 489 | const std::vector<uint8_t>* CompilerDriver::CreatePortableImtConflictTrampoline() const { |
| 490 | return CreateTrampoline(instruction_set_, kPortableAbi, |
| 491 | PORTABLE_ENTRYPOINT_OFFSET(pPortableImtConflictTrampoline)); |
| 492 | } |
| 493 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 494 | const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 495 | return CreateTrampoline(instruction_set_, kPortableAbi, |
| 496 | PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline)); |
| 497 | } |
| 498 | |
| 499 | const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const { |
| 500 | return CreateTrampoline(instruction_set_, kPortableAbi, |
| 501 | PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 502 | } |
| 503 | |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 504 | const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { |
| 505 | return CreateTrampoline(instruction_set_, kQuickAbi, |
| 506 | QUICK_ENTRYPOINT_OFFSET(pQuickImtConflictTrampoline)); |
| 507 | } |
| 508 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 509 | const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 510 | return CreateTrampoline(instruction_set_, kQuickAbi, |
| 511 | QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 512 | } |
| 513 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 514 | const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { |
| 515 | return CreateTrampoline(instruction_set_, kQuickAbi, |
| 516 | QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 517 | } |
| 518 | |
| 519 | void CompilerDriver::CompileAll(jobject class_loader, |
Brian Carlstrom | 4560248 | 2013-07-21 22:07:55 -0700 | [diff] [blame] | 520 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 521 | TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 522 | DCHECK(!Runtime::Current()->IsStarted()); |
Mathieu Chartier | bcd5e9d | 2013-11-13 14:33:28 -0800 | [diff] [blame] | 523 | UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 524 | PreCompile(class_loader, dex_files, *thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 525 | Compile(class_loader, dex_files, *thread_pool.get(), timings); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 526 | if (dump_stats_) { |
| 527 | stats_->Dump(); |
| 528 | } |
| 529 | } |
| 530 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 531 | static DexToDexCompilationLevel GetDexToDexCompilationlevel( |
| 532 | SirtRef<mirror::ClassLoader>& class_loader, const DexFile& dex_file, |
| 533 | const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 534 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 535 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 536 | mirror::Class* klass = class_linker->FindClass(descriptor, class_loader); |
| 537 | if (klass == NULL) { |
| 538 | Thread* self = Thread::Current(); |
| 539 | CHECK(self->IsExceptionPending()); |
| 540 | self->ClearException(); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 541 | return kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 542 | } |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 543 | // The verifier can only run on "quick" instructions at runtime (see usage of |
| 544 | // FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC |
| 545 | // function). Since image classes can be verified again while compiling an application, |
| 546 | // we must prevent the DEX-to-DEX compiler from introducing them. |
| 547 | // TODO: find a way to enable "quick" instructions for image classes and remove this check. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 548 | bool compiling_image_classes = class_loader.get() == nullptr; |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 549 | if (compiling_image_classes) { |
| 550 | return kRequired; |
| 551 | } else if (klass->IsVerified()) { |
| 552 | // Class is verified so we can enable DEX-to-DEX compilation for performance. |
| 553 | return kOptimize; |
| 554 | } else if (klass->IsCompileTimeVerified()) { |
| 555 | // Class verification has soft-failed. Anyway, ensure at least correctness. |
| 556 | DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); |
| 557 | return kRequired; |
| 558 | } else { |
| 559 | // Class verification has failed: do not run DEX-to-DEX compilation. |
| 560 | return kDontDexToDexCompile; |
| 561 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 562 | } |
| 563 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 564 | void CompilerDriver::CompileOne(mirror::ArtMethod* method, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 565 | DCHECK(!Runtime::Current()->IsStarted()); |
| 566 | Thread* self = Thread::Current(); |
| 567 | jobject jclass_loader; |
| 568 | const DexFile* dex_file; |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 569 | uint16_t class_def_idx; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 570 | uint32_t method_idx = method->GetDexMethodIndex(); |
| 571 | uint32_t access_flags = method->GetAccessFlags(); |
| 572 | InvokeType invoke_type = method->GetInvokeType(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 573 | { |
| 574 | ScopedObjectAccessUnchecked soa(self); |
| 575 | ScopedLocalRef<jobject> |
| 576 | local_class_loader(soa.Env(), |
| 577 | soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); |
| 578 | jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); |
| 579 | // Find the dex_file |
| 580 | MethodHelper mh(method); |
| 581 | dex_file = &mh.GetDexFile(); |
| 582 | class_def_idx = mh.GetClassDefIndex(); |
| 583 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 584 | const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 585 | self->TransitionFromRunnableToSuspended(kNative); |
| 586 | |
| 587 | std::vector<const DexFile*> dex_files; |
| 588 | dex_files.push_back(dex_file); |
| 589 | |
Mathieu Chartier | bcd5e9d | 2013-11-13 14:33:28 -0800 | [diff] [blame] | 590 | UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 591 | PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings); |
| 592 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 593 | // Can we run DEX-to-DEX compiler on this class ? |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 594 | DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 595 | { |
| 596 | ScopedObjectAccess soa(Thread::Current()); |
| 597 | const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 598 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), |
| 599 | soa.Decode<mirror::ClassLoader*>(jclass_loader)); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 600 | dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 601 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 602 | CompileMethod(code_item, access_flags, invoke_type, class_def_idx, method_idx, jclass_loader, |
| 603 | *dex_file, dex_to_dex_compilation_level); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 604 | |
| 605 | self->GetJniEnv()->DeleteGlobalRef(jclass_loader); |
| 606 | |
| 607 | self->TransitionFromSuspendedToRunnable(); |
| 608 | } |
| 609 | |
| 610 | void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 611 | ThreadPool& thread_pool, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 612 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 613 | const DexFile* dex_file = dex_files[i]; |
| 614 | CHECK(dex_file != NULL); |
| 615 | ResolveDexFile(class_loader, *dex_file, thread_pool, timings); |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 620 | ThreadPool& thread_pool, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 621 | LoadImageClasses(timings); |
| 622 | |
| 623 | Resolve(class_loader, dex_files, thread_pool, timings); |
| 624 | |
| 625 | Verify(class_loader, dex_files, thread_pool, timings); |
| 626 | |
| 627 | InitializeClasses(class_loader, dex_files, thread_pool, timings); |
| 628 | |
| 629 | UpdateImageClasses(timings); |
| 630 | } |
| 631 | |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 632 | bool CompilerDriver::IsImageClass(const char* descriptor) const { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 633 | if (!IsImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 634 | return true; |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 635 | } else { |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 636 | return image_classes_->find(descriptor) != image_classes_->end(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 637 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | static void ResolveExceptionsForMethod(MethodHelper* mh, |
| 641 | std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve) |
| 642 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 643 | const DexFile::CodeItem* code_item = mh->GetCodeItem(); |
| 644 | if (code_item == NULL) { |
| 645 | return; // native or abstract method |
| 646 | } |
| 647 | if (code_item->tries_size_ == 0) { |
| 648 | return; // nothing to process |
| 649 | } |
| 650 | const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); |
| 651 | size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 652 | for (size_t i = 0; i < num_encoded_catch_handlers; i++) { |
| 653 | int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); |
| 654 | bool has_catch_all = false; |
| 655 | if (encoded_catch_handler_size <= 0) { |
| 656 | encoded_catch_handler_size = -encoded_catch_handler_size; |
| 657 | has_catch_all = true; |
| 658 | } |
| 659 | for (int32_t j = 0; j < encoded_catch_handler_size; j++) { |
| 660 | uint16_t encoded_catch_handler_handlers_type_idx = |
| 661 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 662 | // Add to set of types to resolve if not already in the dex cache resolved types |
| 663 | if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { |
| 664 | exceptions_to_resolve.insert( |
| 665 | std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, |
| 666 | &mh->GetDexFile())); |
| 667 | } |
| 668 | // ignore address associated with catch handler |
| 669 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 670 | } |
| 671 | if (has_catch_all) { |
| 672 | // ignore catch all address |
| 673 | DecodeUnsignedLeb128(&encoded_catch_handler_list); |
| 674 | } |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) |
| 679 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 680 | std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve = |
| 681 | reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg); |
| 682 | MethodHelper mh; |
| 683 | for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 684 | mirror::ArtMethod* m = c->GetVirtualMethod(i); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 685 | mh.ChangeMethod(m); |
| 686 | ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); |
| 687 | } |
| 688 | for (size_t i = 0; i < c->NumDirectMethods(); ++i) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 689 | mirror::ArtMethod* m = c->GetDirectMethod(i); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 690 | mh.ChangeMethod(m); |
| 691 | ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); |
| 692 | } |
| 693 | return true; |
| 694 | } |
| 695 | |
| 696 | static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) |
| 697 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 698 | CompilerDriver::DescriptorSet* image_classes = |
| 699 | reinterpret_cast<CompilerDriver::DescriptorSet*>(arg); |
| 700 | image_classes->insert(ClassHelper(klass).GetDescriptor()); |
| 701 | return true; |
| 702 | } |
| 703 | |
| 704 | // Make a list of descriptors for classes to include in the image |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 705 | void CompilerDriver::LoadImageClasses(TimingLogger& timings) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 706 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 707 | if (!IsImage()) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 708 | return; |
| 709 | } |
| 710 | |
Anwar Ghuloum | 6f28d91 | 2013-07-24 15:02:53 -0700 | [diff] [blame] | 711 | timings.NewSplit("LoadImageClasses"); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 712 | // Make a first class to load all classes explicitly listed in the file |
| 713 | Thread* self = Thread::Current(); |
| 714 | ScopedObjectAccess soa(self); |
| 715 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 716 | for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 717 | const std::string& descriptor(*it); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 718 | SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str())); |
| 719 | if (klass.get() == NULL) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 720 | VLOG(compiler) << "Failed to find class " << descriptor; |
Vladimir Marko | e9c36b3 | 2013-11-21 15:49:16 +0000 | [diff] [blame] | 721 | image_classes_->erase(it++); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 722 | self->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 723 | } else { |
| 724 | ++it; |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | // Resolve exception classes referenced by the loaded classes. The catch logic assumes |
| 729 | // exceptions are resolved by the verifier when there is a catch block in an interested method. |
| 730 | // Do this here so that exception classes appear to have been specified image classes. |
| 731 | std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types; |
| 732 | SirtRef<mirror::Class> java_lang_Throwable(self, |
| 733 | class_linker->FindSystemClass("Ljava/lang/Throwable;")); |
| 734 | do { |
| 735 | unresolved_exception_types.clear(); |
| 736 | class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, |
| 737 | &unresolved_exception_types); |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 738 | for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { |
| 739 | uint16_t exception_type_idx = exception_type.first; |
| 740 | const DexFile* dex_file = exception_type.second; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 741 | SirtRef<mirror::DexCache> dex_cache(self, class_linker->FindDexCache(*dex_file)); |
| 742 | SirtRef<mirror::ClassLoader> class_loader(self, nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 743 | SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx, |
| 744 | dex_cache, class_loader)); |
| 745 | if (klass.get() == NULL) { |
| 746 | const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); |
| 747 | const char* descriptor = dex_file->GetTypeDescriptor(type_id); |
| 748 | LOG(FATAL) << "Failed to resolve class " << descriptor; |
| 749 | } |
| 750 | DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get())); |
| 751 | } |
| 752 | // Resolving exceptions may load classes that reference more exceptions, iterate until no |
| 753 | // more are found |
| 754 | } while (!unresolved_exception_types.empty()); |
| 755 | |
| 756 | // We walk the roots looking for classes so that we'll pick up the |
| 757 | // above classes plus any classes them depend on such super |
| 758 | // classes, interfaces, and the required ClassLinker roots. |
| 759 | class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); |
| 760 | |
| 761 | CHECK_NE(image_classes_->size(), 0U); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes) |
| 765 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 766 | while (!klass->IsObjectClass()) { |
| 767 | ClassHelper kh(klass); |
| 768 | const char* descriptor = kh.GetDescriptor(); |
| 769 | std::pair<CompilerDriver::DescriptorSet::iterator, bool> result = |
| 770 | image_classes->insert(descriptor); |
| 771 | if (result.second) { |
Anwar Ghuloum | 75a43f1 | 2013-08-13 17:22:14 -0700 | [diff] [blame] | 772 | VLOG(compiler) << "Adding " << descriptor << " to image classes"; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 773 | } else { |
| 774 | return; |
| 775 | } |
| 776 | for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) { |
| 777 | MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes); |
| 778 | } |
| 779 | if (klass->IsArrayClass()) { |
| 780 | MaybeAddToImageClasses(klass->GetComponentType(), image_classes); |
| 781 | } |
| 782 | klass = klass->GetSuperClass(); |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) { |
| 787 | DCHECK(object != NULL); |
| 788 | DCHECK(arg != NULL); |
| 789 | CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg); |
| 790 | MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get()); |
| 791 | } |
| 792 | |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 793 | void CompilerDriver::UpdateImageClasses(TimingLogger& timings) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 794 | if (IsImage()) { |
| 795 | timings.NewSplit("UpdateImageClasses"); |
| 796 | |
| 797 | // Update image_classes_ with classes for objects created by <clinit> methods. |
| 798 | Thread* self = Thread::Current(); |
| 799 | const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter"); |
| 800 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
| 801 | // TODO: Image spaces only? |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 802 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 803 | WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 804 | heap->VisitObjects(FindClinitImageClassesCallback, this); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 805 | self->EndAssertNoThreadSuspension(old_cause); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 806 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 807 | } |
| 808 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 809 | bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 810 | if (IsImage() && |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 811 | IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 812 | if (kIsDebugBuild) { |
| 813 | ScopedObjectAccess soa(Thread::Current()); |
| 814 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 815 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 816 | CHECK(resolved_class != NULL); |
| 817 | } |
| 818 | stats_->TypeInDexCache(); |
| 819 | return true; |
| 820 | } else { |
| 821 | stats_->TypeNotInDexCache(); |
| 822 | return false; |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, |
| 827 | uint32_t string_idx) { |
| 828 | // See also Compiler::ResolveDexFile |
| 829 | |
| 830 | bool result = false; |
| 831 | if (IsImage()) { |
| 832 | // We resolve all const-string strings when building for the image. |
| 833 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 834 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), Runtime::Current()->GetClassLinker()->FindDexCache(dex_file)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 835 | Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); |
| 836 | result = true; |
| 837 | } |
| 838 | if (result) { |
| 839 | stats_->StringInDexCache(); |
| 840 | } else { |
| 841 | stats_->StringNotInDexCache(); |
| 842 | } |
| 843 | return result; |
| 844 | } |
| 845 | |
| 846 | bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, |
| 847 | uint32_t type_idx, |
| 848 | bool* type_known_final, bool* type_known_abstract, |
| 849 | bool* equals_referrers_class) { |
| 850 | if (type_known_final != NULL) { |
| 851 | *type_known_final = false; |
| 852 | } |
| 853 | if (type_known_abstract != NULL) { |
| 854 | *type_known_abstract = false; |
| 855 | } |
| 856 | if (equals_referrers_class != NULL) { |
| 857 | *equals_referrers_class = false; |
| 858 | } |
| 859 | ScopedObjectAccess soa(Thread::Current()); |
| 860 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 861 | // Get type from dex cache assuming it was populated by the verifier |
| 862 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 863 | if (resolved_class == NULL) { |
| 864 | stats_->TypeNeedsAccessCheck(); |
| 865 | return false; // Unknown class needs access checks. |
| 866 | } |
| 867 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
| 868 | if (equals_referrers_class != NULL) { |
| 869 | *equals_referrers_class = (method_id.class_idx_ == type_idx); |
| 870 | } |
| 871 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
| 872 | if (referrer_class == NULL) { |
| 873 | stats_->TypeNeedsAccessCheck(); |
| 874 | return false; // Incomplete referrer knowledge needs access check. |
| 875 | } |
| 876 | // Perform access check, will return true if access is ok or false if we're going to have to |
| 877 | // check this at runtime (for example for class loaders). |
| 878 | bool result = referrer_class->CanAccess(resolved_class); |
| 879 | if (result) { |
| 880 | stats_->TypeDoesntNeedAccessCheck(); |
| 881 | if (type_known_final != NULL) { |
| 882 | *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); |
| 883 | } |
| 884 | if (type_known_abstract != NULL) { |
| 885 | *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); |
| 886 | } |
| 887 | } else { |
| 888 | stats_->TypeNeedsAccessCheck(); |
| 889 | } |
| 890 | return result; |
| 891 | } |
| 892 | |
| 893 | bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, |
| 894 | const DexFile& dex_file, |
| 895 | uint32_t type_idx) { |
| 896 | ScopedObjectAccess soa(Thread::Current()); |
| 897 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 898 | // Get type from dex cache assuming it was populated by the verifier. |
| 899 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 900 | if (resolved_class == NULL) { |
| 901 | stats_->TypeNeedsAccessCheck(); |
| 902 | return false; // Unknown class needs access checks. |
| 903 | } |
| 904 | const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); |
| 905 | mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); |
| 906 | if (referrer_class == NULL) { |
| 907 | stats_->TypeNeedsAccessCheck(); |
| 908 | return false; // Incomplete referrer knowledge needs access check. |
| 909 | } |
| 910 | // Perform access and instantiable checks, will return true if access is ok or false if we're |
| 911 | // going to have to check this at runtime (for example for class loaders). |
| 912 | bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); |
| 913 | if (result) { |
| 914 | stats_->TypeDoesntNeedAccessCheck(); |
| 915 | } else { |
| 916 | stats_->TypeNeedsAccessCheck(); |
| 917 | } |
| 918 | return result; |
| 919 | } |
| 920 | |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 921 | bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, |
| 922 | bool* is_type_initialized, bool* use_direct_type_ptr, |
| 923 | uintptr_t* direct_type_ptr) { |
| 924 | ScopedObjectAccess soa(Thread::Current()); |
| 925 | mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); |
| 926 | mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); |
| 927 | if (resolved_class == nullptr) { |
| 928 | return false; |
| 929 | } |
| 930 | const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); |
| 931 | if (compiling_boot) { |
| 932 | // boot -> boot class pointers. |
| 933 | // True if the class is in the image at boot compiling time. |
| 934 | const bool is_image_class = IsImage() && IsImageClass( |
| 935 | dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); |
| 936 | // True if pc relative load works. |
| 937 | const bool support_boot_image_fixup = GetSupportBootImageFixup(); |
| 938 | if (is_image_class && support_boot_image_fixup) { |
| 939 | *is_type_initialized = resolved_class->IsInitialized(); |
| 940 | *use_direct_type_ptr = false; |
| 941 | *direct_type_ptr = 0; |
| 942 | return true; |
| 943 | } else { |
| 944 | return false; |
| 945 | } |
| 946 | } else { |
| 947 | // True if the class is in the image at app compiling time. |
| 948 | const bool class_in_image = |
| 949 | Runtime::Current()->GetHeap()->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); |
| 950 | if (class_in_image) { |
| 951 | // boot -> app class pointers. |
| 952 | *is_type_initialized = resolved_class->IsInitialized(); |
| 953 | *use_direct_type_ptr = true; |
| 954 | *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); |
| 955 | return true; |
| 956 | } else { |
| 957 | // app -> app class pointers. |
| 958 | // Give up because app does not have an image and class |
| 959 | // isn't created at compile time. TODO: implement this |
| 960 | // if/when each app gets an image. |
| 961 | return false; |
| 962 | } |
| 963 | } |
| 964 | } |
| 965 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 966 | static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa, |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 967 | SirtRef<mirror::DexCache>& dex_cache, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 968 | const DexCompilationUnit* mUnit) |
| 969 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 970 | // The passed dex_cache is a hint, sanity check before asking the class linker that will take a |
| 971 | // lock. |
| 972 | if (dex_cache->GetDexFile() != mUnit->GetDexFile()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 973 | dex_cache.reset(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 974 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 975 | SirtRef<mirror::ClassLoader> |
| 976 | class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); |
| 977 | const DexFile::MethodId& referrer_method_id = |
| 978 | mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 979 | return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_, |
| 980 | dex_cache, class_loader); |
| 981 | } |
| 982 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 983 | static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod( |
Vladimir Marko | e549da5 | 2014-02-12 19:19:58 +0000 | [diff] [blame] | 984 | ScopedObjectAccess& soa, const DexCompilationUnit* mUnit, uint32_t field_idx, bool is_static) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 985 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 986 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); |
| 987 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 988 | return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache, |
Vladimir Marko | e549da5 | 2014-02-12 19:19:58 +0000 | [diff] [blame] | 989 | class_loader, is_static); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 990 | } |
| 991 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 992 | static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 993 | const DexCompilationUnit* mUnit, |
| 994 | uint32_t method_idx, |
| 995 | InvokeType type) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 996 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 997 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); |
| 998 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 999 | return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache, |
| 1000 | class_loader, NULL, type); |
| 1001 | } |
| 1002 | |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 1003 | bool CompilerDriver::ComputeSpecialAccessorInfo(uint32_t field_idx, bool is_put, |
| 1004 | verifier::MethodVerifier* verifier, |
| 1005 | InlineIGetIPutData* result) { |
| 1006 | mirror::DexCache* dex_cache = verifier->GetDexCache(); |
| 1007 | uint32_t method_idx = verifier->GetMethodReference().dex_method_index; |
| 1008 | mirror::ArtMethod* method = dex_cache->GetResolvedMethod(method_idx); |
| 1009 | mirror::ArtField* field = dex_cache->GetResolvedField(field_idx); |
Vladimir Marko | c7ac649 | 2014-02-12 10:17:09 +0000 | [diff] [blame] | 1010 | if (method == nullptr || field == nullptr || field->IsStatic()) { |
Vladimir Marko | 2bc4780 | 2014-02-10 09:43:07 +0000 | [diff] [blame] | 1011 | return false; |
| 1012 | } |
| 1013 | mirror::Class* method_class = method->GetDeclaringClass(); |
| 1014 | mirror::Class* field_class = field->GetDeclaringClass(); |
| 1015 | if (!method_class->CanAccessResolvedField(field_class, field, dex_cache, field_idx) || |
| 1016 | (is_put && field->IsFinal() && method_class != field_class)) { |
| 1017 | return false; |
| 1018 | } |
| 1019 | DCHECK_GE(field->GetOffset().Int32Value(), 0); |
| 1020 | result->method_is_static = method->IsStatic(); |
| 1021 | result->field_idx = field_idx; |
| 1022 | result->field_offset = field->GetOffset().Int32Value(); |
| 1023 | result->is_volatile = field->IsVolatile(); |
| 1024 | return true; |
| 1025 | } |
| 1026 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1027 | bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1028 | bool is_put, int* field_offset, bool* is_volatile) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1029 | ScopedObjectAccess soa(Thread::Current()); |
| 1030 | // Conservative defaults. |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1031 | *field_offset = -1; |
| 1032 | *is_volatile = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1033 | // Try to resolve field and ignore if an Incompatible Class Change Error (ie is static). |
Vladimir Marko | e549da5 | 2014-02-12 19:19:58 +0000 | [diff] [blame] | 1034 | mirror::ArtField* resolved_field = |
| 1035 | ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1036 | if (resolved_field != NULL && !resolved_field->IsStatic()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1037 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), |
| 1038 | resolved_field->GetDeclaringClass()->GetDexCache()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1039 | mirror::Class* referrer_class = |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1040 | ComputeCompilingMethodsClass(soa, dex_cache, mUnit); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1041 | if (referrer_class != NULL) { |
| 1042 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 1043 | bool access_ok = referrer_class->CanAccessResolvedField(fields_class, resolved_field, |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1044 | dex_cache.get(), field_idx); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1045 | bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() && |
| 1046 | fields_class != referrer_class; |
| 1047 | if (access_ok && !is_write_to_final_from_wrong_class) { |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1048 | *field_offset = resolved_field->GetOffset().Int32Value(); |
| 1049 | *is_volatile = resolved_field->IsVolatile(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1050 | stats_->ResolvedInstanceField(); |
| 1051 | return true; // Fast path. |
| 1052 | } |
| 1053 | } |
| 1054 | } |
| 1055 | // Clean up any exception left by field/type resolution |
| 1056 | if (soa.Self()->IsExceptionPending()) { |
| 1057 | soa.Self()->ClearException(); |
| 1058 | } |
| 1059 | stats_->UnresolvedInstanceField(); |
| 1060 | return false; // Incomplete knowledge needs slow path. |
| 1061 | } |
| 1062 | |
| 1063 | bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1064 | bool is_put, int* field_offset, int* storage_index, |
| 1065 | bool* is_referrers_class, bool* is_volatile, |
| 1066 | bool* is_initialized) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1067 | ScopedObjectAccess soa(Thread::Current()); |
| 1068 | // Conservative defaults. |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1069 | *field_offset = -1; |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1070 | *storage_index = -1; |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1071 | *is_referrers_class = false; |
| 1072 | *is_volatile = true; |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1073 | *is_initialized = false; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1074 | // Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static). |
Vladimir Marko | e549da5 | 2014-02-12 19:19:58 +0000 | [diff] [blame] | 1075 | mirror::ArtField* resolved_field = |
| 1076 | ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx, true); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1077 | if (resolved_field != NULL && resolved_field->IsStatic()) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1078 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_field->GetDeclaringClass()->GetDexCache()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1079 | mirror::Class* referrer_class = |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1080 | ComputeCompilingMethodsClass(soa, dex_cache, mUnit); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1081 | if (referrer_class != NULL) { |
| 1082 | mirror::Class* fields_class = resolved_field->GetDeclaringClass(); |
| 1083 | if (fields_class == referrer_class) { |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1084 | *is_referrers_class = true; // implies no worrying about class initialization |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1085 | *is_initialized = true; |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1086 | *field_offset = resolved_field->GetOffset().Int32Value(); |
| 1087 | *is_volatile = resolved_field->IsVolatile(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1088 | stats_->ResolvedLocalStaticField(); |
| 1089 | return true; // fast path |
| 1090 | } else { |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 1091 | bool access_ok = referrer_class->CanAccessResolvedField(fields_class, resolved_field, |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1092 | dex_cache.get(), field_idx); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1093 | bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal(); |
| 1094 | if (access_ok && !is_write_to_final_from_wrong_class) { |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1095 | // We have the resolved field, we must make it into a index for the referrer |
| 1096 | // in its static storage (which may fail if it doesn't have a slot for it) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1097 | // TODO: for images we can elide the static storage base null check |
| 1098 | // if we know there's a non-null entry in the image |
| 1099 | mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); |
| 1100 | if (fields_class->GetDexCache() == dex_cache) { |
| 1101 | // common case where the dex cache of both the referrer and the field are the same, |
| 1102 | // no need to search the dex file |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1103 | *storage_index = fields_class->GetDexTypeIndex(); |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1104 | *field_offset = resolved_field->GetOffset().Int32Value(); |
| 1105 | *is_volatile = resolved_field->IsVolatile(); |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1106 | *is_initialized = fields_class->IsInitialized() && |
| 1107 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1108 | stats_->ResolvedStaticField(); |
| 1109 | return true; |
| 1110 | } |
| 1111 | // Search dex file for localized ssb index, may fail if field's class is a parent |
| 1112 | // of the class mentioned in the dex file and there is no dex cache entry. |
| 1113 | const DexFile::StringId* string_id = |
| 1114 | mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor()); |
| 1115 | if (string_id != NULL) { |
| 1116 | const DexFile::TypeId* type_id = |
| 1117 | mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id)); |
| 1118 | if (type_id != NULL) { |
| 1119 | // medium path, needs check of static storage base being initialized |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1120 | *storage_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id); |
Ian Rogers | 9b297bf | 2013-09-06 11:11:25 -0700 | [diff] [blame] | 1121 | *field_offset = resolved_field->GetOffset().Int32Value(); |
| 1122 | *is_volatile = resolved_field->IsVolatile(); |
Ian Rogers | 5ddb410 | 2014-01-07 08:58:46 -0800 | [diff] [blame] | 1123 | *is_initialized = fields_class->IsInitialized() && |
| 1124 | CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1125 | stats_->ResolvedStaticField(); |
| 1126 | return true; |
| 1127 | } |
| 1128 | } |
| 1129 | } |
| 1130 | } |
| 1131 | } |
| 1132 | } |
| 1133 | // Clean up any exception left by field/type resolution |
| 1134 | if (soa.Self()->IsExceptionPending()) { |
| 1135 | soa.Self()->ClearException(); |
| 1136 | } |
| 1137 | stats_->UnresolvedStaticField(); |
| 1138 | return false; // Incomplete knowledge needs slow path. |
| 1139 | } |
| 1140 | |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1141 | void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, |
| 1142 | bool no_guarantee_of_dex_cache_entry, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1143 | mirror::Class* referrer_class, |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1144 | mirror::ArtMethod* method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1145 | bool update_stats, |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1146 | MethodReference* target_method, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1147 | uintptr_t* direct_code, |
| 1148 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1149 | // For direct and static methods compute possible direct_code and direct_method values, ie |
| 1150 | // an address for the Method* being invoked and an address of the code for that Method*. |
| 1151 | // For interface calls compute a value for direct_method that is the interface method being |
| 1152 | // 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] | 1153 | *direct_code = 0; |
| 1154 | *direct_method = 0; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1155 | bool use_dex_cache = false; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1156 | const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1157 | if (compiler_backend_ == kPortable) { |
| 1158 | if (sharp_type != kStatic && sharp_type != kDirect) { |
| 1159 | return; |
| 1160 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1161 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1162 | } else { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1163 | if (sharp_type != kStatic && sharp_type != kDirect) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1164 | return; |
| 1165 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1166 | // TODO: support patching on all architectures. |
| 1167 | use_dex_cache = compiling_boot && !support_boot_image_fixup_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1168 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1169 | bool method_code_in_boot = (method->GetDeclaringClass()->GetClassLoader() == nullptr); |
| 1170 | if (!use_dex_cache) { |
| 1171 | if (!method_code_in_boot) { |
| 1172 | use_dex_cache = true; |
| 1173 | } else { |
| 1174 | bool has_clinit_trampoline = |
| 1175 | method->IsStatic() && !method->GetDeclaringClass()->IsInitialized(); |
| 1176 | if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) { |
| 1177 | // Ensure we run the clinit trampoline unless we are invoking a static method in the same |
| 1178 | // class. |
| 1179 | use_dex_cache = true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1180 | } |
| 1181 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1182 | } |
| 1183 | if (update_stats && method_code_in_boot) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1184 | stats_->DirectCallsToBoot(*type); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1185 | stats_->DirectMethodsToBoot(*type); |
| 1186 | } |
| 1187 | if (!use_dex_cache && compiling_boot) { |
| 1188 | MethodHelper mh(method); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1189 | if (!IsImageClass(mh.GetDeclaringClassDescriptor())) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1190 | // We can only branch directly to Methods that are resolved in the DexCache. |
| 1191 | // Otherwise we won't invoke the resolution trampoline. |
| 1192 | use_dex_cache = true; |
| 1193 | } |
| 1194 | } |
| 1195 | // The method is defined not within this dex file. We need a dex cache slot within the current |
| 1196 | // dex file or direct pointers. |
| 1197 | bool must_use_direct_pointers = false; |
| 1198 | if (target_method->dex_file == method->GetDeclaringClass()->GetDexCache()->GetDexFile()) { |
| 1199 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1200 | } else { |
| 1201 | // TODO: support patching from one dex file to another in the boot image. |
| 1202 | use_dex_cache = use_dex_cache || compiling_boot; |
| 1203 | if (no_guarantee_of_dex_cache_entry) { |
| 1204 | // See if the method is also declared in this dex cache. |
| 1205 | uint32_t dex_method_idx = MethodHelper(method).FindDexMethodIndexInOtherDexFile( |
Vladimir Marko | bbcc0c0 | 2014-02-03 14:08:42 +0000 | [diff] [blame] | 1206 | *target_method->dex_file, target_method->dex_method_index); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1207 | if (dex_method_idx != DexFile::kDexNoIndex) { |
| 1208 | target_method->dex_method_index = dex_method_idx; |
| 1209 | } else { |
| 1210 | must_use_direct_pointers = true; |
| 1211 | } |
| 1212 | } |
| 1213 | } |
| 1214 | if (use_dex_cache) { |
| 1215 | if (must_use_direct_pointers) { |
| 1216 | // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct |
| 1217 | // pointers are required as the dex cache lacks an appropriate entry. |
| 1218 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1219 | } else { |
| 1220 | *type = sharp_type; |
| 1221 | } |
| 1222 | } else { |
| 1223 | if (compiling_boot) { |
| 1224 | *type = sharp_type; |
| 1225 | *direct_method = -1; |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1226 | *direct_code = -1; |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1227 | } else { |
| 1228 | bool method_in_image = |
| 1229 | Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace(); |
| 1230 | if (method_in_image) { |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1231 | CHECK(!method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1232 | *type = sharp_type; |
| 1233 | *direct_method = reinterpret_cast<uintptr_t>(method); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1234 | if (compiler_backend_ == kQuick) { |
| 1235 | *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); |
| 1236 | } else { |
| 1237 | CHECK_EQ(compiler_backend_, kPortable); |
| 1238 | *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); |
| 1239 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1240 | target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); |
| 1241 | target_method->dex_method_index = method->GetDexMethodIndex(); |
| 1242 | } else if (!must_use_direct_pointers) { |
| 1243 | // Set the code and rely on the dex cache for the method. |
| 1244 | *type = sharp_type; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1245 | if (compiler_backend_ == kQuick) { |
| 1246 | *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); |
| 1247 | } else { |
| 1248 | CHECK_EQ(compiler_backend_, kPortable); |
| 1249 | *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); |
| 1250 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1251 | } else { |
| 1252 | // Direct pointers were required but none were available. |
| 1253 | VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); |
| 1254 | } |
| 1255 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1256 | } |
| 1257 | } |
| 1258 | |
| 1259 | bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1260 | bool update_stats, bool enable_devirtualization, |
| 1261 | InvokeType* invoke_type, MethodReference* target_method, |
| 1262 | int* vtable_idx, uintptr_t* direct_code, |
| 1263 | uintptr_t* direct_method) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1264 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1265 | *vtable_idx = -1; |
| 1266 | *direct_code = 0; |
| 1267 | *direct_method = 0; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1268 | mirror::ArtMethod* resolved_method = |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1269 | ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method->dex_method_index, |
| 1270 | *invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1271 | if (resolved_method != NULL) { |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1272 | if (*invoke_type == kVirtual || *invoke_type == kSuper) { |
| 1273 | *vtable_idx = resolved_method->GetMethodIndex(); |
Jeff Hao | 88474b4 | 2013-10-23 16:24:40 -0700 | [diff] [blame] | 1274 | } else if (*invoke_type == kInterface) { |
| 1275 | *vtable_idx = resolved_method->GetDexMethodIndex(); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1276 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1277 | // Don't try to fast-path if we don't understand the caller's class or this appears to be an |
| 1278 | // Incompatible Class Change Error. |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1279 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_method->GetDeclaringClass()->GetDexCache()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1280 | mirror::Class* referrer_class = |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1281 | ComputeCompilingMethodsClass(soa, dex_cache, mUnit); |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1282 | bool icce = resolved_method->CheckIncompatibleClassChange(*invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1283 | if (referrer_class != NULL && !icce) { |
| 1284 | mirror::Class* methods_class = resolved_method->GetDeclaringClass(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1285 | if (referrer_class->CanAccessResolvedMethod(methods_class, resolved_method, dex_cache.get(), |
| 1286 | target_method->dex_method_index)) { |
Sebastien Hertz | 1e54d68 | 2013-09-06 14:52:10 +0200 | [diff] [blame] | 1287 | const bool enableFinalBasedSharpening = enable_devirtualization; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1288 | // Sharpen a virtual call into a direct call when the target is known not to have been |
| 1289 | // overridden (ie is final). |
| 1290 | bool can_sharpen_virtual_based_on_type = |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1291 | (*invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1292 | // For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of |
| 1293 | // the super class. |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1294 | bool can_sharpen_super_based_on_type = (*invoke_type == kSuper) && |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1295 | (referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) && |
| 1296 | resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() && |
| 1297 | (methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method); |
| 1298 | |
Sebastien Hertz | 1e54d68 | 2013-09-06 14:52:10 +0200 | [diff] [blame] | 1299 | if (enableFinalBasedSharpening && (can_sharpen_virtual_based_on_type || |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1300 | can_sharpen_super_based_on_type)) { |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 1301 | // Sharpen a virtual call into a direct call. The method_idx is into the DexCache |
| 1302 | // associated with target_method->dex_file. |
| 1303 | CHECK(target_method->dex_file == mUnit->GetDexFile()); |
| 1304 | DCHECK(dex_cache.get() == mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); |
| 1305 | CHECK(dex_cache->GetResolvedMethod(target_method->dex_method_index) == |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1306 | resolved_method) << PrettyMethod(resolved_method); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1307 | InvokeType orig_invoke_type = *invoke_type; |
| 1308 | GetCodeAndMethodForDirectCall(invoke_type, kDirect, false, referrer_class, resolved_method, |
| 1309 | update_stats, target_method, direct_code, direct_method); |
| 1310 | if (update_stats && (*invoke_type == kDirect)) { |
| 1311 | stats_->ResolvedMethod(orig_invoke_type); |
| 1312 | stats_->VirtualMadeDirect(orig_invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1313 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1314 | DCHECK_NE(*invoke_type, kSuper) << PrettyMethod(resolved_method); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1315 | return true; |
| 1316 | } |
Sebastien Hertz | 1e54d68 | 2013-09-06 14:52:10 +0200 | [diff] [blame] | 1317 | const bool enableVerifierBasedSharpening = enable_devirtualization; |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1318 | if (enableVerifierBasedSharpening && (*invoke_type == kVirtual || |
| 1319 | *invoke_type == kInterface)) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1320 | // Did the verifier record a more precise invoke target based on its type information? |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1321 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1322 | const MethodReference* devirt_map_target = |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1323 | mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1324 | if (devirt_map_target != NULL) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1325 | SirtRef<mirror::DexCache> target_dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file)); |
| 1326 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1327 | mirror::ArtMethod* called_method = |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1328 | mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file, |
| 1329 | devirt_map_target->dex_method_index, |
| 1330 | target_dex_cache, class_loader, NULL, |
| 1331 | kVirtual); |
| 1332 | CHECK(called_method != NULL); |
| 1333 | CHECK(!called_method->IsAbstract()); |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1334 | InvokeType orig_invoke_type = *invoke_type; |
| 1335 | GetCodeAndMethodForDirectCall(invoke_type, kDirect, true, referrer_class, called_method, |
| 1336 | update_stats, target_method, direct_code, direct_method); |
| 1337 | if (update_stats && (*invoke_type == kDirect)) { |
| 1338 | stats_->ResolvedMethod(orig_invoke_type); |
| 1339 | stats_->VirtualMadeDirect(orig_invoke_type); |
| 1340 | stats_->PreciseTypeDevirtualization(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1341 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1342 | DCHECK_NE(*invoke_type, kSuper); |
| 1343 | return true; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1344 | } |
| 1345 | } |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1346 | if (*invoke_type == kSuper) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1347 | // Unsharpened super calls are suspicious so go slow-path. |
| 1348 | } else { |
| 1349 | // Sharpening failed so generate a regular resolved method dispatch. |
| 1350 | if (update_stats) { |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1351 | stats_->ResolvedMethod(*invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1352 | } |
Ian Rogers | 83883d7 | 2013-10-21 21:07:24 -0700 | [diff] [blame] | 1353 | GetCodeAndMethodForDirectCall(invoke_type, *invoke_type, false, referrer_class, resolved_method, |
| 1354 | update_stats, target_method, direct_code, direct_method); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1355 | return true; |
| 1356 | } |
| 1357 | } |
| 1358 | } |
| 1359 | } |
| 1360 | // Clean up any exception left by method/invoke_type resolution |
| 1361 | if (soa.Self()->IsExceptionPending()) { |
| 1362 | soa.Self()->ClearException(); |
| 1363 | } |
| 1364 | if (update_stats) { |
Ian Rogers | 65ec92c | 2013-09-06 10:49:58 -0700 | [diff] [blame] | 1365 | stats_->UnresolvedMethod(*invoke_type); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1366 | } |
| 1367 | return false; // Incomplete knowledge needs slow path. |
| 1368 | } |
| 1369 | |
Vladimir Marko | 2730db0 | 2014-01-27 11:15:17 +0000 | [diff] [blame] | 1370 | const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, |
| 1371 | uint32_t method_idx) const { |
| 1372 | MethodReference ref(dex_file, method_idx); |
| 1373 | return verification_results_->GetVerifiedMethod(ref); |
| 1374 | } |
| 1375 | |
| 1376 | bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { |
| 1377 | DCHECK(mUnit->GetVerifiedMethod() != nullptr); |
| 1378 | bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1379 | if (result) { |
| 1380 | stats_->SafeCast(); |
| 1381 | } else { |
| 1382 | stats_->NotASafeCast(); |
| 1383 | } |
| 1384 | return result; |
| 1385 | } |
| 1386 | |
| 1387 | |
| 1388 | void CompilerDriver::AddCodePatch(const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1389 | uint16_t referrer_class_def_idx, |
| 1390 | uint32_t referrer_method_idx, |
| 1391 | InvokeType referrer_invoke_type, |
| 1392 | uint32_t target_method_idx, |
| 1393 | InvokeType target_invoke_type, |
| 1394 | size_t literal_offset) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1395 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1396 | code_to_patch_.push_back(new CallPatchInformation(dex_file, |
| 1397 | referrer_class_def_idx, |
| 1398 | referrer_method_idx, |
| 1399 | referrer_invoke_type, |
| 1400 | target_method_idx, |
| 1401 | target_invoke_type, |
| 1402 | literal_offset)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1403 | } |
Mark Mendell | 55d0eac | 2014-02-06 11:02:52 -0800 | [diff] [blame] | 1404 | void CompilerDriver::AddRelativeCodePatch(const DexFile* dex_file, |
| 1405 | uint16_t referrer_class_def_idx, |
| 1406 | uint32_t referrer_method_idx, |
| 1407 | InvokeType referrer_invoke_type, |
| 1408 | uint32_t target_method_idx, |
| 1409 | InvokeType target_invoke_type, |
| 1410 | size_t literal_offset, |
| 1411 | int32_t pc_relative_offset) { |
| 1412 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 1413 | code_to_patch_.push_back(new RelativeCallPatchInformation(dex_file, |
| 1414 | referrer_class_def_idx, |
| 1415 | referrer_method_idx, |
| 1416 | referrer_invoke_type, |
| 1417 | target_method_idx, |
| 1418 | target_invoke_type, |
| 1419 | literal_offset, |
| 1420 | pc_relative_offset)); |
| 1421 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1422 | void CompilerDriver::AddMethodPatch(const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 1423 | uint16_t referrer_class_def_idx, |
| 1424 | uint32_t referrer_method_idx, |
| 1425 | InvokeType referrer_invoke_type, |
| 1426 | uint32_t target_method_idx, |
| 1427 | InvokeType target_invoke_type, |
| 1428 | size_t literal_offset) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1429 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
Hiroshi Yamauchi | be1ca55 | 2014-01-15 11:46:48 -0800 | [diff] [blame] | 1430 | methods_to_patch_.push_back(new CallPatchInformation(dex_file, |
| 1431 | referrer_class_def_idx, |
| 1432 | referrer_method_idx, |
| 1433 | referrer_invoke_type, |
| 1434 | target_method_idx, |
| 1435 | target_invoke_type, |
| 1436 | literal_offset)); |
| 1437 | } |
| 1438 | void CompilerDriver::AddClassPatch(const DexFile* dex_file, |
| 1439 | uint16_t referrer_class_def_idx, |
| 1440 | uint32_t referrer_method_idx, |
| 1441 | uint32_t target_type_idx, |
| 1442 | size_t literal_offset) { |
| 1443 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 1444 | classes_to_patch_.push_back(new TypePatchInformation(dex_file, |
| 1445 | referrer_class_def_idx, |
| 1446 | referrer_method_idx, |
| 1447 | target_type_idx, |
| 1448 | literal_offset)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1449 | } |
| 1450 | |
| 1451 | class ParallelCompilationManager { |
| 1452 | public: |
| 1453 | typedef void Callback(const ParallelCompilationManager* manager, size_t index); |
| 1454 | |
| 1455 | ParallelCompilationManager(ClassLinker* class_linker, |
| 1456 | jobject class_loader, |
| 1457 | CompilerDriver* compiler, |
| 1458 | const DexFile* dex_file, |
| 1459 | ThreadPool& thread_pool) |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1460 | : index_(0), |
| 1461 | class_linker_(class_linker), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1462 | class_loader_(class_loader), |
| 1463 | compiler_(compiler), |
| 1464 | dex_file_(dex_file), |
| 1465 | thread_pool_(&thread_pool) {} |
| 1466 | |
| 1467 | ClassLinker* GetClassLinker() const { |
| 1468 | CHECK(class_linker_ != NULL); |
| 1469 | return class_linker_; |
| 1470 | } |
| 1471 | |
| 1472 | jobject GetClassLoader() const { |
| 1473 | return class_loader_; |
| 1474 | } |
| 1475 | |
| 1476 | CompilerDriver* GetCompiler() const { |
| 1477 | CHECK(compiler_ != NULL); |
| 1478 | return compiler_; |
| 1479 | } |
| 1480 | |
| 1481 | const DexFile* GetDexFile() const { |
| 1482 | CHECK(dex_file_ != NULL); |
| 1483 | return dex_file_; |
| 1484 | } |
| 1485 | |
| 1486 | void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { |
| 1487 | Thread* self = Thread::Current(); |
| 1488 | self->AssertNoPendingException(); |
| 1489 | CHECK_GT(work_units, 0U); |
| 1490 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1491 | index_ = begin; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1492 | for (size_t i = 0; i < work_units; ++i) { |
Sebastien Hertz | 501baec | 2013-12-13 12:02:36 +0100 | [diff] [blame] | 1493 | thread_pool_->AddTask(self, new ForAllClosure(this, end, callback)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1494 | } |
| 1495 | thread_pool_->StartWorkers(self); |
| 1496 | |
| 1497 | // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker |
| 1498 | // thread destructor's called below perform join). |
| 1499 | CHECK_NE(self->GetState(), kRunnable); |
| 1500 | |
| 1501 | // Wait for all the worker threads to finish. |
| 1502 | thread_pool_->Wait(self, true, false); |
| 1503 | } |
| 1504 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1505 | size_t NextIndex() { |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 1506 | return index_.FetchAndAdd(1); |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1507 | } |
| 1508 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1509 | private: |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1510 | class ForAllClosure : public Task { |
| 1511 | public: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1512 | ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1513 | : manager_(manager), |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1514 | end_(end), |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1515 | callback_(callback) {} |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1516 | |
| 1517 | virtual void Run(Thread* self) { |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1518 | while (true) { |
| 1519 | const size_t index = manager_->NextIndex(); |
| 1520 | if (UNLIKELY(index >= end_)) { |
| 1521 | break; |
| 1522 | } |
| 1523 | callback_(manager_, index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1524 | self->AssertNoPendingException(); |
| 1525 | } |
| 1526 | } |
| 1527 | |
| 1528 | virtual void Finalize() { |
| 1529 | delete this; |
| 1530 | } |
Brian Carlstrom | 0cd7ec2 | 2013-07-17 23:40:20 -0700 | [diff] [blame] | 1531 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1532 | private: |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1533 | ParallelCompilationManager* const manager_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1534 | const size_t end_; |
Bernhard Rosenkränzer | 4605362 | 2013-12-12 02:15:52 +0100 | [diff] [blame] | 1535 | Callback* const callback_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1536 | }; |
| 1537 | |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1538 | AtomicInteger index_; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1539 | ClassLinker* const class_linker_; |
| 1540 | const jobject class_loader_; |
| 1541 | CompilerDriver* const compiler_; |
| 1542 | const DexFile* const dex_file_; |
| 1543 | ThreadPool* const thread_pool_; |
Mathieu Chartier | 0b3eb39 | 2013-08-23 14:56:59 -0700 | [diff] [blame] | 1544 | |
| 1545 | DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1546 | }; |
| 1547 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1548 | // Return true if the class should be skipped during compilation. |
| 1549 | // |
| 1550 | // The first case where we skip is for redundant class definitions in |
| 1551 | // the boot classpath. We skip all but the first definition in that case. |
| 1552 | // |
| 1553 | // The second case where we skip is when an app bundles classes found |
| 1554 | // in the boot classpath. Since at runtime we will select the class from |
| 1555 | // the boot classpath, we ignore the one from the app. |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1556 | static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file, |
| 1557 | const DexFile::ClassDef& class_def) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1558 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1559 | if (class_loader == NULL) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1560 | DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, class_linker->GetBootClassPath()); |
| 1561 | CHECK(pair.second != NULL); |
| 1562 | if (pair.first != &dex_file) { |
| 1563 | LOG(WARNING) << "Skipping class " << descriptor << " from " << dex_file.GetLocation() |
| 1564 | << " previously found in " << pair.first->GetLocation(); |
| 1565 | return true; |
| 1566 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1567 | return false; |
| 1568 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1569 | return class_linker->IsInBootClassPath(descriptor); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1570 | } |
| 1571 | |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1572 | // A fast version of SkipClass above if the class pointer is available |
| 1573 | // that avoids the expensive FindInClassPath search. |
| 1574 | static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) |
| 1575 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 1576 | DCHECK(klass != NULL); |
| 1577 | const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); |
| 1578 | if (&dex_file != &original_dex_file) { |
| 1579 | if (class_loader == NULL) { |
| 1580 | LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " |
| 1581 | << dex_file.GetLocation() << " previously found in " |
| 1582 | << original_dex_file.GetLocation(); |
| 1583 | } |
| 1584 | return true; |
| 1585 | } |
| 1586 | return false; |
| 1587 | } |
| 1588 | |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1589 | static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, |
| 1590 | size_t class_def_index) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1591 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1592 | ATRACE_CALL(); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1593 | Thread* self = Thread::Current(); |
| 1594 | jobject jclass_loader = manager->GetClassLoader(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1595 | const DexFile& dex_file = *manager->GetDexFile(); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1596 | ClassLinker* class_linker = manager->GetClassLinker(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1597 | |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1598 | // If an instance field is final then we need to have a barrier on the return, static final |
| 1599 | // fields are assigned within the lock held for class initialization. Conservatively assume |
| 1600 | // constructor barriers are always required. |
| 1601 | bool requires_constructor_barrier = true; |
| 1602 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1603 | // Method and Field are the worst. We can't resolve without either |
| 1604 | // context from the code use (to disambiguate virtual vs direct |
| 1605 | // method and instance vs static field) or from class |
| 1606 | // definitions. While the compiler will resolve what it can as it |
| 1607 | // needs it, here we try to resolve fields and methods used in class |
| 1608 | // definitions, since many of them many never be referenced by |
| 1609 | // generated code. |
| 1610 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1611 | if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) { |
Brian Carlstrom | cb5f5e5 | 2013-09-23 17:48:16 -0700 | [diff] [blame] | 1612 | ScopedObjectAccess soa(self); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1613 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); |
| 1614 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); |
Brian Carlstrom | cb5f5e5 | 2013-09-23 17:48:16 -0700 | [diff] [blame] | 1615 | // Resolve the class. |
| 1616 | mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, |
| 1617 | class_loader); |
Brian Carlstrom | cb5f5e5 | 2013-09-23 17:48:16 -0700 | [diff] [blame] | 1618 | bool resolve_fields_and_methods; |
| 1619 | if (klass == NULL) { |
| 1620 | // Class couldn't be resolved, for example, super-class is in a different dex file. Don't |
| 1621 | // attempt to resolve methods and fields when there is no declaring class. |
| 1622 | CHECK(soa.Self()->IsExceptionPending()); |
| 1623 | soa.Self()->ClearException(); |
| 1624 | resolve_fields_and_methods = false; |
| 1625 | } else { |
| 1626 | resolve_fields_and_methods = manager->GetCompiler()->IsImage(); |
| 1627 | } |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1628 | // Note the class_data pointer advances through the headers, |
| 1629 | // static fields, instance fields, direct methods, and virtual |
| 1630 | // methods. |
| 1631 | const byte* class_data = dex_file.GetClassData(class_def); |
| 1632 | if (class_data == NULL) { |
| 1633 | // Empty class such as a marker interface. |
| 1634 | requires_constructor_barrier = false; |
| 1635 | } else { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1636 | ClassDataItemIterator it(dex_file, class_data); |
| 1637 | while (it.HasNextStaticField()) { |
| 1638 | if (resolve_fields_and_methods) { |
| 1639 | mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1640 | dex_cache, class_loader, true); |
| 1641 | if (field == NULL) { |
| 1642 | CHECK(soa.Self()->IsExceptionPending()); |
| 1643 | soa.Self()->ClearException(); |
| 1644 | } |
| 1645 | } |
| 1646 | it.Next(); |
| 1647 | } |
| 1648 | // We require a constructor barrier if there are final instance fields. |
| 1649 | requires_constructor_barrier = false; |
| 1650 | while (it.HasNextInstanceField()) { |
| 1651 | if ((it.GetMemberAccessFlags() & kAccFinal) != 0) { |
| 1652 | requires_constructor_barrier = true; |
| 1653 | } |
| 1654 | if (resolve_fields_and_methods) { |
| 1655 | mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), |
| 1656 | dex_cache, class_loader, false); |
| 1657 | if (field == NULL) { |
| 1658 | CHECK(soa.Self()->IsExceptionPending()); |
| 1659 | soa.Self()->ClearException(); |
| 1660 | } |
| 1661 | } |
| 1662 | it.Next(); |
| 1663 | } |
| 1664 | if (resolve_fields_and_methods) { |
| 1665 | while (it.HasNextDirectMethod()) { |
| 1666 | mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), |
| 1667 | dex_cache, class_loader, NULL, |
| 1668 | it.GetMethodInvokeType(class_def)); |
| 1669 | if (method == NULL) { |
| 1670 | CHECK(soa.Self()->IsExceptionPending()); |
| 1671 | soa.Self()->ClearException(); |
| 1672 | } |
| 1673 | it.Next(); |
| 1674 | } |
| 1675 | while (it.HasNextVirtualMethod()) { |
| 1676 | mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), |
| 1677 | dex_cache, class_loader, NULL, |
| 1678 | it.GetMethodInvokeType(class_def)); |
| 1679 | if (method == NULL) { |
| 1680 | CHECK(soa.Self()->IsExceptionPending()); |
| 1681 | soa.Self()->ClearException(); |
| 1682 | } |
| 1683 | it.Next(); |
| 1684 | } |
| 1685 | DCHECK(!it.HasNext()); |
| 1686 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1687 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1688 | } |
| 1689 | if (requires_constructor_barrier) { |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1690 | manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1691 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1692 | } |
| 1693 | |
| 1694 | static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) |
| 1695 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
| 1696 | // Class derived values are more complicated, they require the linker and loader. |
| 1697 | ScopedObjectAccess soa(Thread::Current()); |
| 1698 | ClassLinker* class_linker = manager->GetClassLinker(); |
| 1699 | const DexFile& dex_file = *manager->GetDexFile(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1700 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1701 | SirtRef<mirror::ClassLoader> class_loader( |
| 1702 | soa.Self(), soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader())); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1703 | mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); |
| 1704 | |
| 1705 | if (klass == NULL) { |
| 1706 | CHECK(soa.Self()->IsExceptionPending()); |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1707 | mirror::Throwable* exception = soa.Self()->GetException(NULL); |
| 1708 | VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); |
Ian Rogers | dfb325e | 2013-10-30 01:00:44 -0700 | [diff] [blame] | 1709 | if (strcmp("Ljava/lang/OutOfMemoryError;", |
| 1710 | ClassHelper(exception->GetClass()).GetDescriptor()) == 0) { |
Ian Rogers | a436fde | 2013-08-27 23:34:06 -0700 | [diff] [blame] | 1711 | // There's little point continuing compilation if the heap is exhausted. |
| 1712 | LOG(FATAL) << "Out of memory during type resolution for compilation"; |
| 1713 | } |
| 1714 | soa.Self()->ClearException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1715 | } |
| 1716 | } |
| 1717 | |
| 1718 | void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 1719 | ThreadPool& thread_pool, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1720 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1721 | |
| 1722 | // TODO: we could resolve strings here, although the string table is largely filled with class |
| 1723 | // and method names. |
| 1724 | |
| 1725 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1726 | if (IsImage()) { |
| 1727 | // For images we resolve all types, such as array, whereas for applications just those with |
| 1728 | // classdefs are resolved by ResolveClassFieldsAndMethods. |
Anwar Ghuloum | df69314 | 2013-09-04 12:22:30 -0700 | [diff] [blame] | 1729 | timings.NewSplit("Resolve Types"); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1730 | context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); |
| 1731 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1732 | |
Anwar Ghuloum | df69314 | 2013-09-04 12:22:30 -0700 | [diff] [blame] | 1733 | timings.NewSplit("Resolve MethodsAndFields"); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1734 | context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1735 | } |
| 1736 | |
| 1737 | void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 1738 | ThreadPool& thread_pool, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1739 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 1740 | const DexFile* dex_file = dex_files[i]; |
| 1741 | CHECK(dex_file != NULL); |
| 1742 | VerifyDexFile(class_loader, *dex_file, thread_pool, timings); |
| 1743 | } |
| 1744 | } |
| 1745 | |
| 1746 | static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) |
| 1747 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 1748 | ATRACE_CALL(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1749 | ScopedObjectAccess soa(Thread::Current()); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1750 | const DexFile& dex_file = *manager->GetDexFile(); |
| 1751 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| 1752 | const char* descriptor = dex_file.GetClassDescriptor(class_def); |
| 1753 | ClassLinker* class_linker = manager->GetClassLinker(); |
| 1754 | jobject jclass_loader = manager->GetClassLoader(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1755 | SirtRef<mirror::ClassLoader> class_loader( |
| 1756 | soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1757 | SirtRef<mirror::Class> klass(soa.Self(), class_linker->FindClass(descriptor, class_loader)); |
| 1758 | if (klass.get() == nullptr) { |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1759 | CHECK(soa.Self()->IsExceptionPending()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1760 | soa.Self()->ClearException(); |
| 1761 | |
| 1762 | /* |
| 1763 | * At compile time, we can still structurally verify the class even if FindClass fails. |
| 1764 | * This is to ensure the class is structurally sound for compilation. An unsound class |
| 1765 | * will be rejected by the verifier and later skipped during compilation in the compiler. |
| 1766 | */ |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1767 | SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1768 | std::string error_msg; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1769 | if (verifier::MethodVerifier::VerifyClass(&dex_file, dex_cache, class_loader, &class_def, true, |
| 1770 | &error_msg) == |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1771 | verifier::MethodVerifier::kHardFailure) { |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1772 | LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1773 | << " because: " << error_msg; |
| 1774 | } |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1775 | } else if (!SkipClass(jclass_loader, dex_file, klass.get())) { |
| 1776 | CHECK(klass->IsResolved()) << PrettyClass(klass.get()); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1777 | class_linker->VerifyClass(klass); |
Ian Rogers | e6bb3b2 | 2013-08-19 21:51:45 -0700 | [diff] [blame] | 1778 | |
| 1779 | if (klass->IsErroneous()) { |
| 1780 | // ClassLinker::VerifyClass throws, which isn't useful in the compiler. |
| 1781 | CHECK(soa.Self()->IsExceptionPending()); |
| 1782 | soa.Self()->ClearException(); |
| 1783 | } |
| 1784 | |
| 1785 | CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1786 | << PrettyDescriptor(klass.get()) << ": state=" << klass->GetStatus(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1787 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1788 | soa.Self()->AssertNoPendingException(); |
| 1789 | } |
| 1790 | |
| 1791 | void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 1792 | ThreadPool& thread_pool, TimingLogger& timings) { |
Anwar Ghuloum | df69314 | 2013-09-04 12:22:30 -0700 | [diff] [blame] | 1793 | timings.NewSplit("Verify Dex File"); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1794 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1795 | ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); |
| 1796 | context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1797 | } |
| 1798 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1799 | static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) |
| 1800 | LOCKS_EXCLUDED(Locks::mutator_lock_) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1801 | ATRACE_CALL(); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1802 | jobject jclass_loader = manager->GetClassLoader(); |
| 1803 | const DexFile& dex_file = *manager->GetDexFile(); |
| 1804 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
Jeff Hao | bcdbbfe | 2013-11-08 18:03:22 -0800 | [diff] [blame] | 1805 | const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); |
| 1806 | const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); |
Ian Rogers | fc0e94b | 2013-09-23 23:51:32 -0700 | [diff] [blame] | 1807 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1808 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1809 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), |
| 1810 | soa.Decode<mirror::ClassLoader*>(jclass_loader)); |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1811 | SirtRef<mirror::Class> klass(soa.Self(), |
| 1812 | manager->GetClassLinker()->FindClass(descriptor, class_loader)); |
Jeff Hao | 0e49b42 | 2013-11-08 12:16:56 -0800 | [diff] [blame] | 1813 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1814 | if (klass.get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.get())) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1815 | // Only try to initialize classes that were successfully verified. |
| 1816 | if (klass->IsVerified()) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1817 | // Attempt to initialize the class but bail if we either need to initialize the super-class |
| 1818 | // or static fields. |
| 1819 | manager->GetClassLinker()->EnsureInitialized(klass, false, false); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1820 | if (!klass->IsInitialized()) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1821 | // We don't want non-trivial class initialization occurring on multiple threads due to |
| 1822 | // deadlock problems. For example, a parent class is initialized (holding its lock) that |
| 1823 | // refers to a sub-class in its static/class initializer causing it to try to acquire the |
| 1824 | // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) |
| 1825 | // after first initializing its parents, whose locks are acquired. This leads to a |
| 1826 | // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. |
| 1827 | // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather |
| 1828 | // than use a special Object for the purpose we use the Class of java.lang.Class. |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1829 | SirtRef<mirror::Class> sirt_klass(soa.Self(), klass->GetClass()); |
| 1830 | ObjectLock<mirror::Class> lock(soa.Self(), &sirt_klass); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1831 | // Attempt to initialize allowing initialization of parent classes but still not static |
| 1832 | // fields. |
| 1833 | manager->GetClassLinker()->EnsureInitialized(klass, false, true); |
| 1834 | if (!klass->IsInitialized()) { |
| 1835 | // 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^] | 1836 | // marked with the $NoPreloadHolder (which implies this should not be initialized early). |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1837 | bool can_init_static_fields = manager->GetCompiler()->IsImage() && |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame^] | 1838 | manager->GetCompiler()->IsImageClass(descriptor) && |
| 1839 | !StringPiece(descriptor).ends_with("$NoPreloadHolder;"); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1840 | if (can_init_static_fields) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame^] | 1841 | VLOG(compiler) << "Initializing: " << descriptor; |
| 1842 | if (strcmp("Ljava/lang/Void;", descriptor) == 0) { |
| 1843 | // Hand initialize j.l.Void to avoid Dex file operations in un-started runtime. |
| 1844 | ObjectLock<mirror::Class> lock(soa.Self(), &klass); |
| 1845 | mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields(); |
| 1846 | CHECK_EQ(fields->GetLength(), 1); |
| 1847 | fields->Get(0)->SetObj<false>(klass.get(), |
| 1848 | manager->GetClassLinker()->FindPrimitiveClass('V')); |
| 1849 | klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self()); |
| 1850 | } else { |
| 1851 | // TODO multithreading support. We should ensure the current compilation thread has |
| 1852 | // exclusive access to the runtime and the transaction. To achieve this, we could use |
| 1853 | // a ReaderWriterMutex but we're holding the mutator lock so we fail mutex sanity |
| 1854 | // checks in Thread::AssertThreadSuspensionIsAllowable. |
| 1855 | Runtime* const runtime = Runtime::Current(); |
| 1856 | Transaction transaction; |
| 1857 | |
| 1858 | // Run the class initializer in transaction mode. |
| 1859 | runtime->EnterTransactionMode(&transaction); |
| 1860 | const mirror::Class::Status old_status = klass->GetStatus(); |
| 1861 | bool success = manager->GetClassLinker()->EnsureInitialized(klass, true, true); |
| 1862 | // TODO we detach transaction from runtime to indicate we quit the transactional |
| 1863 | // mode which prevents the GC from visiting objects modified during the transaction. |
| 1864 | // Ensure GC is not run so don't access freed objects when aborting transaction. |
| 1865 | const char* old_casue = soa.Self()->StartAssertNoThreadSuspension("Transaction end"); |
| 1866 | runtime->ExitTransactionMode(); |
| 1867 | |
| 1868 | if (!success) { |
| 1869 | CHECK(soa.Self()->IsExceptionPending()); |
| 1870 | ThrowLocation throw_location; |
| 1871 | mirror::Throwable* exception = soa.Self()->GetException(&throw_location); |
| 1872 | VLOG(compiler) << "Initialization of " << descriptor << " aborted because of " |
| 1873 | << exception->Dump(); |
| 1874 | soa.Self()->ClearException(); |
| 1875 | transaction.Abort(); |
| 1876 | CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored"; |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1877 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame^] | 1878 | soa.Self()->EndAssertNoThreadSuspension(old_casue); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1879 | } |
| 1880 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1881 | } |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1882 | soa.Self()->AssertNoPendingException(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1883 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1884 | } |
| 1885 | // Record the final class status if necessary. |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1886 | ClassReference ref(manager->GetDexFile(), class_def_index); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 1887 | manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1888 | } |
| 1889 | // Clear any class not found or verification exceptions. |
| 1890 | soa.Self()->ClearException(); |
| 1891 | } |
| 1892 | |
| 1893 | void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 1894 | ThreadPool& thread_pool, TimingLogger& timings) { |
Anwar Ghuloum | df69314 | 2013-09-04 12:22:30 -0700 | [diff] [blame] | 1895 | timings.NewSplit("InitializeNoClinit"); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1896 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1897 | ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame^] | 1898 | size_t thread_count; |
| 1899 | if (IsImage()) { |
| 1900 | // TODO: remove this when transactional mode supports multithreading. |
| 1901 | thread_count = 1U; |
| 1902 | } else { |
| 1903 | thread_count = thread_count_; |
| 1904 | } |
| 1905 | context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count); |
| 1906 | if (IsImage()) { |
| 1907 | // Prune garbage objects created during aborted transactions. |
| 1908 | Runtime::Current()->GetHeap()->CollectGarbage(true); |
| 1909 | } |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1910 | } |
| 1911 | |
| 1912 | void CompilerDriver::InitializeClasses(jobject class_loader, |
| 1913 | const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 1914 | ThreadPool& thread_pool, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1915 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 1916 | const DexFile* dex_file = dex_files[i]; |
| 1917 | CHECK(dex_file != NULL); |
| 1918 | InitializeClasses(class_loader, *dex_file, thread_pool, timings); |
| 1919 | } |
| 1920 | } |
| 1921 | |
| 1922 | void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 1923 | ThreadPool& thread_pool, TimingLogger& timings) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1924 | for (size_t i = 0; i != dex_files.size(); ++i) { |
| 1925 | const DexFile* dex_file = dex_files[i]; |
| 1926 | CHECK(dex_file != NULL); |
| 1927 | CompileDexFile(class_loader, *dex_file, thread_pool, timings); |
| 1928 | } |
| 1929 | } |
| 1930 | |
| 1931 | void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 1932 | ATRACE_CALL(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1933 | jobject jclass_loader = manager->GetClassLoader(); |
| 1934 | const DexFile& dex_file = *manager->GetDexFile(); |
| 1935 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1936 | ClassLinker* class_linker = manager->GetClassLinker(); |
| 1937 | if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) { |
| 1938 | return; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1939 | } |
| 1940 | ClassReference ref(&dex_file, class_def_index); |
| 1941 | // 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] | 1942 | if (manager->GetCompiler()->verification_results_->IsClassRejected(ref)) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1943 | return; |
| 1944 | } |
| 1945 | const byte* class_data = dex_file.GetClassData(class_def); |
| 1946 | if (class_data == NULL) { |
| 1947 | // empty class, probably a marker interface |
| 1948 | return; |
| 1949 | } |
Anwar Ghuloum | 67f9941 | 2013-08-12 14:19:48 -0700 | [diff] [blame] | 1950 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1951 | // Can we run DEX-to-DEX compiler on this class ? |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 1952 | DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1953 | { |
| 1954 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1955 | SirtRef<mirror::ClassLoader> class_loader(soa.Self(), |
| 1956 | soa.Decode<mirror::ClassLoader*>(jclass_loader)); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 1957 | dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1958 | } |
| 1959 | ClassDataItemIterator it(dex_file, class_data); |
| 1960 | // Skip fields |
| 1961 | while (it.HasNextStaticField()) { |
| 1962 | it.Next(); |
| 1963 | } |
| 1964 | while (it.HasNextInstanceField()) { |
| 1965 | it.Next(); |
| 1966 | } |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1967 | CompilerDriver* driver = manager->GetCompiler(); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1968 | // Compile direct methods |
| 1969 | int64_t previous_direct_method_idx = -1; |
| 1970 | while (it.HasNextDirectMethod()) { |
| 1971 | uint32_t method_idx = it.GetMemberIndex(); |
| 1972 | if (method_idx == previous_direct_method_idx) { |
| 1973 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 1974 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 1975 | it.Next(); |
| 1976 | continue; |
| 1977 | } |
| 1978 | previous_direct_method_idx = method_idx; |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1979 | driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), |
| 1980 | it.GetMethodInvokeType(class_def), class_def_index, |
| 1981 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1982 | it.Next(); |
| 1983 | } |
| 1984 | // Compile virtual methods |
| 1985 | int64_t previous_virtual_method_idx = -1; |
| 1986 | while (it.HasNextVirtualMethod()) { |
| 1987 | uint32_t method_idx = it.GetMemberIndex(); |
| 1988 | if (method_idx == previous_virtual_method_idx) { |
| 1989 | // smali can create dex files with two encoded_methods sharing the same method_idx |
| 1990 | // http://code.google.com/p/smali/issues/detail?id=119 |
| 1991 | it.Next(); |
| 1992 | continue; |
| 1993 | } |
| 1994 | previous_virtual_method_idx = method_idx; |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 1995 | driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), |
| 1996 | it.GetMethodInvokeType(class_def), class_def_index, |
| 1997 | method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 1998 | it.Next(); |
| 1999 | } |
| 2000 | DCHECK(!it.HasNext()); |
| 2001 | } |
| 2002 | |
| 2003 | void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, |
Ian Rogers | 5fe9af7 | 2013-11-14 00:17:20 -0800 | [diff] [blame] | 2004 | ThreadPool& thread_pool, TimingLogger& timings) { |
Anwar Ghuloum | df69314 | 2013-09-04 12:22:30 -0700 | [diff] [blame] | 2005 | timings.NewSplit("Compile Dex File"); |
Ian Rogers | be7149f | 2013-08-20 09:29:39 -0700 | [diff] [blame] | 2006 | ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, |
| 2007 | &dex_file, thread_pool); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2008 | context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2009 | } |
| 2010 | |
| 2011 | void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2012 | InvokeType invoke_type, uint16_t class_def_idx, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2013 | uint32_t method_idx, jobject class_loader, |
| 2014 | const DexFile& dex_file, |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 2015 | DexToDexCompilationLevel dex_to_dex_compilation_level) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2016 | CompiledMethod* compiled_method = NULL; |
| 2017 | uint64_t start_ns = NanoTime(); |
| 2018 | |
| 2019 | if ((access_flags & kAccNative) != 0) { |
| 2020 | compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file); |
| 2021 | CHECK(compiled_method != NULL); |
| 2022 | } else if ((access_flags & kAccAbstract) != 0) { |
| 2023 | } else { |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 2024 | MethodReference method_ref(&dex_file, method_idx); |
Vladimir Marko | c7f8320 | 2014-01-24 17:55:18 +0000 | [diff] [blame] | 2025 | bool compile = VerificationResults::IsCandidateForCompilation(method_ref, access_flags); |
Dragos Sbirlea | bd136a2 | 2013-08-13 18:07:04 -0700 | [diff] [blame] | 2026 | |
Sebastien Hertz | 4d4adb1 | 2013-07-24 16:14:19 +0200 | [diff] [blame] | 2027 | if (compile) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2028 | CompilerFn compiler = compiler_; |
| 2029 | #ifdef ART_SEA_IR_MODE |
Dragos Sbirlea | 90af14d | 2013-08-15 17:50:16 -0700 | [diff] [blame] | 2030 | bool use_sea = Runtime::Current()->IsSeaIRMode(); |
| 2031 | use_sea = use_sea && |
| 2032 | (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2033 | if (use_sea) { |
| 2034 | compiler = sea_ir_compiler_; |
Dragos Sbirlea | bd136a2 | 2013-08-13 18:07:04 -0700 | [diff] [blame] | 2035 | LOG(INFO) << "Using SEA IR to compile..." << std::endl; |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2036 | } |
| 2037 | #endif |
buzbee | a024a06 | 2013-07-31 10:47:37 -0700 | [diff] [blame] | 2038 | // NOTE: if compiler declines to compile this method, it will return NULL. |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2039 | compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx, |
| 2040 | method_idx, class_loader, dex_file); |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 2041 | } else if (dex_to_dex_compilation_level != kDontDexToDexCompile) { |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2042 | // TODO: add a mode to disable DEX-to-DEX compilation ? |
Sebastien Hertz | 7502122 | 2013-07-16 18:34:50 +0200 | [diff] [blame] | 2043 | (*dex_to_dex_compiler_)(*this, code_item, access_flags, |
| 2044 | invoke_type, class_def_idx, |
| 2045 | method_idx, class_loader, dex_file, |
| 2046 | dex_to_dex_compilation_level); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2047 | } |
| 2048 | } |
| 2049 | uint64_t duration_ns = NanoTime() - start_ns; |
| 2050 | #ifdef ART_USE_PORTABLE_COMPILER |
| 2051 | const uint64_t kWarnMilliSeconds = 1000; |
| 2052 | #else |
| 2053 | const uint64_t kWarnMilliSeconds = 100; |
| 2054 | #endif |
| 2055 | if (duration_ns > MsToNs(kWarnMilliSeconds)) { |
| 2056 | LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) |
| 2057 | << " took " << PrettyDuration(duration_ns); |
| 2058 | } |
| 2059 | |
| 2060 | Thread* self = Thread::Current(); |
| 2061 | if (compiled_method != NULL) { |
| 2062 | MethodReference ref(&dex_file, method_idx); |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2063 | DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2064 | { |
| 2065 | MutexLock mu(self, compiled_methods_lock_); |
| 2066 | compiled_methods_.Put(ref, compiled_method); |
| 2067 | } |
| 2068 | DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file); |
| 2069 | } |
| 2070 | |
| 2071 | if (self->IsExceptionPending()) { |
| 2072 | ScopedObjectAccess soa(self); |
| 2073 | LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" |
| 2074 | << self->GetException(NULL)->Dump(); |
| 2075 | } |
| 2076 | } |
| 2077 | |
| 2078 | CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { |
| 2079 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2080 | ClassTable::const_iterator it = compiled_classes_.find(ref); |
| 2081 | if (it == compiled_classes_.end()) { |
| 2082 | return NULL; |
| 2083 | } |
| 2084 | CHECK(it->second != NULL); |
| 2085 | return it->second; |
| 2086 | } |
| 2087 | |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2088 | void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { |
| 2089 | MutexLock mu(Thread::Current(), compiled_classes_lock_); |
| 2090 | auto it = compiled_classes_.find(ref); |
| 2091 | if (it == compiled_classes_.end() || it->second->GetStatus() != status) { |
| 2092 | // An entry doesn't exist or the status is lower than the new status. |
| 2093 | if (it != compiled_classes_.end()) { |
| 2094 | CHECK_GT(status, it->second->GetStatus()); |
| 2095 | delete it->second; |
| 2096 | } |
| 2097 | switch (status) { |
| 2098 | case mirror::Class::kStatusNotReady: |
| 2099 | case mirror::Class::kStatusError: |
| 2100 | case mirror::Class::kStatusRetryVerificationAtRuntime: |
| 2101 | case mirror::Class::kStatusVerified: |
| 2102 | case mirror::Class::kStatusInitialized: |
| 2103 | break; // Expected states. |
| 2104 | default: |
| 2105 | LOG(FATAL) << "Unexpected class status for class " |
| 2106 | << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) |
| 2107 | << " of " << status; |
| 2108 | } |
| 2109 | CompiledClass* compiled_class = new CompiledClass(status); |
| 2110 | compiled_classes_.Overwrite(ref, compiled_class); |
| 2111 | } |
| 2112 | } |
| 2113 | |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2114 | CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { |
| 2115 | MutexLock mu(Thread::Current(), compiled_methods_lock_); |
| 2116 | MethodTable::const_iterator it = compiled_methods_.find(ref); |
| 2117 | if (it == compiled_methods_.end()) { |
| 2118 | return NULL; |
| 2119 | } |
| 2120 | CHECK(it->second != NULL); |
| 2121 | return it->second; |
| 2122 | } |
| 2123 | |
| 2124 | void CompilerDriver::SetBitcodeFileName(std::string const& filename) { |
| 2125 | typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&); |
| 2126 | |
| 2127 | SetBitcodeFileNameFn set_bitcode_file_name = |
| 2128 | reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); |
| 2129 | |
| 2130 | set_bitcode_file_name(*this, filename); |
| 2131 | } |
| 2132 | |
| 2133 | |
| 2134 | void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2135 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2136 | WriterMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2137 | freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); |
| 2138 | } |
| 2139 | |
| 2140 | bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, |
Ian Rogers | 8b2c0b9 | 2013-09-19 02:56:49 -0700 | [diff] [blame] | 2141 | uint16_t class_def_index) { |
Ian Rogers | 8f3c9ae | 2013-08-20 17:26:41 -0700 | [diff] [blame] | 2142 | ReaderMutexLock mu(self, freezing_constructor_lock_); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2143 | return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; |
| 2144 | } |
| 2145 | |
| 2146 | bool CompilerDriver::WriteElf(const std::string& android_root, |
| 2147 | bool is_host, |
| 2148 | const std::vector<const art::DexFile*>& dex_files, |
Brian Carlstrom | c50d8e1 | 2013-07-23 22:35:16 -0700 | [diff] [blame] | 2149 | OatWriter& oat_writer, |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2150 | art::File* file) |
| 2151 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2152 | #if defined(ART_USE_PORTABLE_COMPILER) |
Brian Carlstrom | c50d8e1 | 2013-07-23 22:35:16 -0700 | [diff] [blame] | 2153 | return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2154 | #else |
Brian Carlstrom | c50d8e1 | 2013-07-23 22:35:16 -0700 | [diff] [blame] | 2155 | return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, *this); |
Brian Carlstrom | 7940e44 | 2013-07-12 13:46:57 -0700 | [diff] [blame] | 2156 | #endif |
| 2157 | } |
| 2158 | void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, |
| 2159 | std::string& target_triple, |
| 2160 | std::string& target_cpu, |
| 2161 | std::string& target_attr) { |
| 2162 | switch (instruction_set) { |
| 2163 | case kThumb2: |
| 2164 | target_triple = "thumb-none-linux-gnueabi"; |
| 2165 | target_cpu = "cortex-a9"; |
| 2166 | target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; |
| 2167 | break; |
| 2168 | |
| 2169 | case kArm: |
| 2170 | target_triple = "armv7-none-linux-gnueabi"; |
| 2171 | // TODO: Fix for Nexus S. |
| 2172 | target_cpu = "cortex-a9"; |
| 2173 | // TODO: Fix for Xoom. |
| 2174 | target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; |
| 2175 | break; |
| 2176 | |
| 2177 | case kX86: |
| 2178 | target_triple = "i386-pc-linux-gnu"; |
| 2179 | target_attr = ""; |
| 2180 | break; |
| 2181 | |
| 2182 | case kMips: |
| 2183 | target_triple = "mipsel-unknown-linux"; |
| 2184 | target_attr = "mips32r2"; |
| 2185 | break; |
| 2186 | |
| 2187 | default: |
| 2188 | LOG(FATAL) << "Unknown instruction set: " << instruction_set; |
| 2189 | } |
| 2190 | } |
| 2191 | } // namespace art |