jit.cc revision ffc87076dda9878cb2cc098149bae441d38b9268
1e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier/* 2e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * Copyright 2014 The Android Open Source Project 3e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * 4e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * Licensed under the Apache License, Version 2.0 (the "License"); 5e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * you may not use this file except in compliance with the License. 6e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * You may obtain a copy of the License at 7e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * 8e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * http://www.apache.org/licenses/LICENSE-2.0 9e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * 10e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * Unless required by applicable law or agreed to in writing, software 11e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * distributed under the License is distributed on an "AS IS" BASIS, 12e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * See the License for the specific language governing permissions and 14e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier * limitations under the License. 15e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier */ 16e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 17e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "jit.h" 18e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 19e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include <dlfcn.h> 20e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 21e401d146407d61eeb99f8d6176b2ac13c4df1e33Mathieu Chartier#include "art_method-inl.h" 222a5c4681ba19411c1cb22e9a7ab446dab910af1cAndreas Gampe#include "debugger.h" 23e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "entrypoints/runtime_asm_entrypoints.h" 24e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "interpreter/interpreter.h" 25e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "jit_code_cache.h" 2631f2c155975c5794d481df03eb0947cb48d2c6b5Calin Juravle#include "oat_file_manager.h" 27b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray#include "oat_quick_method_header.h" 2831f2c155975c5794d481df03eb0947cb48d2c6b5Calin Juravle#include "offline_profiling_info.h" 294d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle#include "profile_saver.h" 30e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "runtime.h" 31e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "runtime_options.h" 32b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray#include "stack_map.h" 33274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray#include "thread_list.h" 34e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier#include "utils.h" 35e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 36e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartiernamespace art { 37e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartiernamespace jit { 38e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 39d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffraystatic constexpr bool kEnableOnStackReplacement = true; 40274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray// At what priority to schedule jit threads. 9 is the lowest foreground priority on device. 41274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffraystatic constexpr int kJitPoolThreadPthreadPriority = 9; 42e86621386d18a3a7178af6cfc2c05d1b34c3b995Nicolas Geoffray 4372918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartier// JIT compiler 4472918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartiervoid* Jit::jit_library_handle_= nullptr; 4572918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartiervoid* Jit::jit_compiler_handle_ = nullptr; 4672918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartiervoid* (*Jit::jit_load_)(bool*) = nullptr; 4772918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartiervoid (*Jit::jit_unload_)(void*) = nullptr; 4872918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartierbool (*Jit::jit_compile_method_)(void*, ArtMethod*, Thread*, bool) = nullptr; 4972918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartiervoid (*Jit::jit_types_loaded_)(void*, mirror::Class**, size_t count) = nullptr; 5072918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartierbool Jit::generate_debug_info_ = false; 5172918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartier 52e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu ChartierJitOptions* JitOptions::CreateFromRuntimeArguments(const RuntimeArgumentMap& options) { 53e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier auto* jit_options = new JitOptions; 54ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle jit_options->use_jit_compilation_ = options.GetOrDefault(RuntimeArgumentMap::UseJitCompilation); 5583f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray 560a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray jit_options->code_cache_initial_capacity_ = 570a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray options.GetOrDefault(RuntimeArgumentMap::JITCodeCacheInitialCapacity); 580a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray jit_options->code_cache_max_capacity_ = 590a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray options.GetOrDefault(RuntimeArgumentMap::JITCodeCacheMaxCapacity); 60a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier jit_options->dump_info_on_shutdown_ = 61a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier options.Exists(RuntimeArgumentMap::DumpJITInfoOnShutdown); 6231f2c155975c5794d481df03eb0947cb48d2c6b5Calin Juravle jit_options->save_profiling_info_ = 6383f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray options.GetOrDefault(RuntimeArgumentMap::JITSaveProfilingInfo); 6483f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray 6583f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray jit_options->compile_threshold_ = options.GetOrDefault(RuntimeArgumentMap::JITCompileThreshold); 6683f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray if (jit_options->compile_threshold_ > std::numeric_limits<uint16_t>::max()) { 6783f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray LOG(FATAL) << "Method compilation threshold is above its internal limit."; 6883f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } 6983f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray 7083f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray if (options.Exists(RuntimeArgumentMap::JITWarmupThreshold)) { 7183f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray jit_options->warmup_threshold_ = *options.Get(RuntimeArgumentMap::JITWarmupThreshold); 7283f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray if (jit_options->warmup_threshold_ > std::numeric_limits<uint16_t>::max()) { 7383f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray LOG(FATAL) << "Method warmup threshold is above its internal limit."; 7483f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } 7583f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } else { 7683f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray jit_options->warmup_threshold_ = jit_options->compile_threshold_ / 2; 7783f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } 7883f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray 7983f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray if (options.Exists(RuntimeArgumentMap::JITOsrThreshold)) { 8083f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray jit_options->osr_threshold_ = *options.Get(RuntimeArgumentMap::JITOsrThreshold); 8183f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray if (jit_options->osr_threshold_ > std::numeric_limits<uint16_t>::max()) { 8283f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray LOG(FATAL) << "Method on stack replacement threshold is above its internal limit."; 8383f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } 8483f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } else { 8583f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray jit_options->osr_threshold_ = jit_options->compile_threshold_ * 2; 8683f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray if (jit_options->osr_threshold_ > std::numeric_limits<uint16_t>::max()) { 8783f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray jit_options->osr_threshold_ = std::numeric_limits<uint16_t>::max(); 8883f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } 8983f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray } 9083f080ac824d0964941c3fbaa957cac874f827b0Nicolas Geoffray 91b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle if (options.Exists(RuntimeArgumentMap::JITPriorityThreadWeight)) { 92b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle jit_options->priority_thread_weight_ = 93b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle *options.Get(RuntimeArgumentMap::JITPriorityThreadWeight); 94b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle if (jit_options->priority_thread_weight_ > jit_options->warmup_threshold_) { 95b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle LOG(FATAL) << "Priority thread weight is above the warmup threshold."; 96b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle } else if (jit_options->priority_thread_weight_ == 0) { 97b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle LOG(FATAL) << "Priority thread weight cannot be 0."; 98b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle } 99b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle } else { 10071cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray jit_options->priority_thread_weight_ = std::max( 10171cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray jit_options->warmup_threshold_ / Jit::kDefaultPriorityThreadWeightRatio, 10271cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray static_cast<size_t>(1)); 103b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle } 104b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle 105e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return jit_options; 106e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 107e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 108b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravlebool Jit::ShouldUsePriorityThreadWeight() { 10997cbc9206e9adc473a90650ebdb5d620f517ff04Calin Juravle return Runtime::Current()->InJankPerceptibleProcessState() 11097cbc9206e9adc473a90650ebdb5d620f517ff04Calin Juravle && Thread::Current()->IsJitSensitiveThread(); 111b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle} 112b2771b41a956b50266d4d83fbb067f99faf7b7dcCalin Juravle 113a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartiervoid Jit::DumpInfo(std::ostream& os) { 114bcd94c8ea9bde4e075c25fbdfb3a2ef6858eed7bNicolas Geoffray code_cache_->Dump(os); 115a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier cumulative_timings_.Dump(os); 116a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray MutexLock mu(Thread::Current(), lock_); 117a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray memory_use_.PrintMemoryUse(os); 118a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier} 119a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier 120b8e69994d10534e0f4f96878725bc53e531f2c6fCalin Juravlevoid Jit::DumpForSigQuit(std::ostream& os) { 121b8e69994d10534e0f4f96878725bc53e531f2c6fCalin Juravle DumpInfo(os); 122b8e69994d10534e0f4f96878725bc53e531f2c6fCalin Juravle ProfileSaver::DumpInstanceInfo(os); 123b8e69994d10534e0f4f96878725bc53e531f2c6fCalin Juravle} 124b8e69994d10534e0f4f96878725bc53e531f2c6fCalin Juravle 125a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartiervoid Jit::AddTimingLogger(const TimingLogger& logger) { 126a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier cumulative_timings_.AddLogger(logger); 127a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier} 128a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier 12972918ea854d182ef25b2352bfe1c46c1e916a141Mathieu ChartierJit::Jit() : dump_info_on_shutdown_(false), 130a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray cumulative_timings_("JIT timings"), 131a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray memory_use_("Memory used for compilation", 16), 132a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray lock_("JIT memory use lock"), 133ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle use_jit_compilation_(true), 13472918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartier save_profiling_info_(false) {} 135e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 136e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu ChartierJit* Jit::Create(JitOptions* options, std::string* error_msg) { 137ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle DCHECK(options->UseJitCompilation() || options->GetSaveProfilingInfo()); 138e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier std::unique_ptr<Jit> jit(new Jit); 139a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier jit->dump_info_on_shutdown_ = options->DumpJitInfoOnShutdown(); 14072918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartier if (jit_compiler_handle_ == nullptr && !LoadCompiler(error_msg)) { 141e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return nullptr; 142e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 1430a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray jit->code_cache_.reset(JitCodeCache::Create( 144a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray options->GetCodeCacheInitialCapacity(), 145a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray options->GetCodeCacheMaxCapacity(), 146a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray jit->generate_debug_info_, 147a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray error_msg)); 148e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit->GetCodeCache() == nullptr) { 149e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return nullptr; 150e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 151ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle jit->use_jit_compilation_ = options->UseJitCompilation(); 1524d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle jit->save_profiling_info_ = options->GetSaveProfilingInfo(); 153bcd94c8ea9bde4e075c25fbdfb3a2ef6858eed7bNicolas Geoffray VLOG(jit) << "JIT created with initial_capacity=" 1540a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray << PrettySize(options->GetCodeCacheInitialCapacity()) 1550a3be1620a3560253cfa789cb9819013293c5654Nicolas Geoffray << ", max_capacity=" << PrettySize(options->GetCodeCacheMaxCapacity()) 1564d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle << ", compile_threshold=" << options->GetCompileThreshold() 1574d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle << ", save_profiling_info=" << options->GetSaveProfilingInfo(); 158274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 159274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 160274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray jit->hot_method_threshold_ = options->GetCompileThreshold(); 161274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray jit->warm_method_threshold_ = options->GetWarmupThreshold(); 162274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray jit->osr_method_threshold_ = options->GetOsrThreshold(); 163ba6aae0b49932a0ae3050d1fc22c6571e51f8180Nicolas Geoffray jit->priority_thread_weight_ = options->GetPriorityThreadWeight(); 16471cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray jit->transition_weight_ = std::max( 16571cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray jit->warm_method_threshold_ / kDefaultTransitionRatio, static_cast<size_t>(1)); 166274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 167274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray jit->CreateThreadPool(); 168274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 169274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Notify native debugger about the classes already loaded before the creation of the jit. 170274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray jit->DumpTypeInfoForLoadedTypes(Runtime::Current()->GetClassLinker()); 171e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return jit.release(); 172e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 173e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 174c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartierbool Jit::LoadCompilerLibrary(std::string* error_msg) { 175e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier jit_library_handle_ = dlopen( 176e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier kIsDebugBuild ? "libartd-compiler.so" : "libart-compiler.so", RTLD_NOW); 177e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_library_handle_ == nullptr) { 178e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier std::ostringstream oss; 179e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier oss << "JIT could not load libart-compiler.so: " << dlerror(); 180e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier *error_msg = oss.str(); 181e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return false; 182e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 1835b82d339955d1a0dc23eeb8d2d5659459ff987baNicolas Geoffray jit_load_ = reinterpret_cast<void* (*)(bool*)>(dlsym(jit_library_handle_, "jit_load")); 184e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_load_ == nullptr) { 185e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlclose(jit_library_handle_); 186e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier *error_msg = "JIT couldn't find jit_load entry point"; 187e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return false; 188e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 189e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier jit_unload_ = reinterpret_cast<void (*)(void*)>( 190e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlsym(jit_library_handle_, "jit_unload")); 191e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_unload_ == nullptr) { 192e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlclose(jit_library_handle_); 193e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier *error_msg = "JIT couldn't find jit_unload entry point"; 194e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return false; 195e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 196b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray jit_compile_method_ = reinterpret_cast<bool (*)(void*, ArtMethod*, Thread*, bool)>( 197e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlsym(jit_library_handle_, "jit_compile_method")); 198e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_compile_method_ == nullptr) { 199e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlclose(jit_library_handle_); 200e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier *error_msg = "JIT couldn't find jit_compile_method entry point"; 201e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return false; 202e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 203fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer jit_types_loaded_ = reinterpret_cast<void (*)(void*, mirror::Class**, size_t)>( 204fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer dlsym(jit_library_handle_, "jit_types_loaded")); 205fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer if (jit_types_loaded_ == nullptr) { 206160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer dlclose(jit_library_handle_); 207fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer *error_msg = "JIT couldn't find jit_types_loaded entry point"; 208160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer return false; 209160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer } 210c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartier return true; 211c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartier} 212c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartier 213c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartierbool Jit::LoadCompiler(std::string* error_msg) { 214c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartier if (jit_library_handle_ == nullptr && !LoadCompilerLibrary(error_msg)) { 215c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartier return false; 216c1bc4150415686e6240343c7345c49d80e351df3Mathieu Chartier } 217a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray bool will_generate_debug_symbols = false; 218e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier VLOG(jit) << "Calling JitLoad interpreter_only=" 219e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier << Runtime::Current()->GetInstrumentation()->InterpretOnly(); 2205b82d339955d1a0dc23eeb8d2d5659459ff987baNicolas Geoffray jit_compiler_handle_ = (jit_load_)(&will_generate_debug_symbols); 221e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_compiler_handle_ == nullptr) { 222e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlclose(jit_library_handle_); 223e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier *error_msg = "JIT couldn't load compiler"; 224e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return false; 225e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 226a25dce9b452ba17ef7cef768926c884177a3025eNicolas Geoffray generate_debug_info_ = will_generate_debug_symbols; 227e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier return true; 228e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 229e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 230b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffraybool Jit::CompileMethod(ArtMethod* method, Thread* self, bool osr) { 231ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle DCHECK(Runtime::Current()->UseJitCompilation()); 232e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier DCHECK(!method->IsRuntimeMethod()); 233d9994f069dfeaa32ba929ca78816b5b83e2a4134Nicolas Geoffray 23473be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray // Don't compile the method if it has breakpoints. 235d8565456d29f4ad05f11cf84d2d2dac488508e06Mathieu Chartier if (Dbg::IsDebuggerActive() && Dbg::MethodHasAnyBreakpoints(method)) { 236d8565456d29f4ad05f11cf84d2d2dac488508e06Mathieu Chartier VLOG(jit) << "JIT not compiling " << PrettyMethod(method) << " due to breakpoint"; 237d8565456d29f4ad05f11cf84d2d2dac488508e06Mathieu Chartier return false; 238d8565456d29f4ad05f11cf84d2d2dac488508e06Mathieu Chartier } 23973be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray 24073be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray // Don't compile the method if we are supposed to be deoptimized. 24173be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); 24273be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray if (instrumentation->AreAllMethodsDeoptimized() || instrumentation->IsDeoptimized(method)) { 243a42363f79832a6e14f348514664dc6dc3edf9da2Nicolas Geoffray VLOG(jit) << "JIT not compiling " << PrettyMethod(method) << " due to deoptimization"; 24473be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray return false; 24573be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray } 24673be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray 247d9994f069dfeaa32ba929ca78816b5b83e2a4134Nicolas Geoffray // If we get a request to compile a proxy method, we pass the actual Java method 248d9994f069dfeaa32ba929ca78816b5b83e2a4134Nicolas Geoffray // of that proxy method, as the compiler does not expect a proxy method. 249d9994f069dfeaa32ba929ca78816b5b83e2a4134Nicolas Geoffray ArtMethod* method_to_compile = method->GetInterfaceMethodIfProxy(sizeof(void*)); 250d9994f069dfeaa32ba929ca78816b5b83e2a4134Nicolas Geoffray if (!code_cache_->NotifyCompilationOf(method_to_compile, self, osr)) { 25173be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray return false; 25273be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray } 25371cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray 25471cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray VLOG(jit) << "Compiling method " 25571cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray << PrettyMethod(method_to_compile) 25671cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray << " osr=" << std::boolalpha << osr; 257d9994f069dfeaa32ba929ca78816b5b83e2a4134Nicolas Geoffray bool success = jit_compile_method_(jit_compiler_handle_, method_to_compile, self, osr); 258454b3b6774fe07765273b917ccc97da2eba776acbuzbee code_cache_->DoneCompiling(method_to_compile, self, osr); 25971cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray if (!success) { 26071cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray VLOG(jit) << "Failed to compile method " 26171cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray << PrettyMethod(method_to_compile) 26271cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray << " osr=" << std::boolalpha << osr; 26371cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray } 26473be1e8f8609708f6624bb297c9628de44fd8b6fNicolas Geoffray return success; 265e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 266e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 267e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartiervoid Jit::CreateThreadPool() { 268274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // There is a DCHECK in the 'AddSamples' method to ensure the tread pool 269274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // is not null when we instrument. 270274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray thread_pool_.reset(new ThreadPool("Jit thread pool", 1)); 271274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray thread_pool_->SetPthreadPriority(kJitPoolThreadPthreadPriority); 272274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray thread_pool_->StartWorkers(Thread::Current()); 273e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 274e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 275e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartiervoid Jit::DeleteThreadPool() { 276274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray Thread* self = Thread::Current(); 277274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK(Runtime::Current()->IsShuttingDown(self)); 278274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (thread_pool_ != nullptr) { 279274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ThreadPool* cache = nullptr; 280274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray { 281274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ScopedSuspendAll ssa(__FUNCTION__); 282274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Clear thread_pool_ field while the threads are suspended. 283274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // A mutator in the 'AddSamples' method will check against it. 284274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray cache = thread_pool_.release(); 285274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 286274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray cache->StopWorkers(self); 287274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray cache->RemoveAllTasks(self); 288274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // We could just suspend all threads, but we know those threads 289274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // will finish in a short period, so it's not worth adding a suspend logic 290274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // here. Besides, this is only done for shutdown. 291274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray cache->Wait(self, false, false); 292274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray delete cache; 293e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 294e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 295e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 2964d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravlevoid Jit::StartProfileSaver(const std::string& filename, 297c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle const std::vector<std::string>& code_paths, 298c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle const std::string& foreign_dex_profile_path, 299c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle const std::string& app_dir) { 3004d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle if (save_profiling_info_) { 301c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle ProfileSaver::Start(filename, code_cache_.get(), code_paths, foreign_dex_profile_path, app_dir); 3024d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle } 3034d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle} 3044d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle 3054d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravlevoid Jit::StopProfileSaver() { 3064d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle if (save_profiling_info_ && ProfileSaver::IsStarted()) { 307b8e69994d10534e0f4f96878725bc53e531f2c6fCalin Juravle ProfileSaver::Stop(dump_info_on_shutdown_); 30831f2c155975c5794d481df03eb0947cb48d2c6b5Calin Juravle } 30931f2c155975c5794d481df03eb0947cb48d2c6b5Calin Juravle} 31031f2c155975c5794d481df03eb0947cb48d2c6b5Calin Juravle 31105d241565f36df825cf56a4f1b61bfb7e4dcb056Siva Chandrabool Jit::JitAtFirstUse() { 312274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray return HotMethodThreshold() == 0; 31305d241565f36df825cf56a4f1b61bfb7e4dcb056Siva Chandra} 31405d241565f36df825cf56a4f1b61bfb7e4dcb056Siva Chandra 31535122443e5f8606cc5a660ac32745a06aefb341bNicolas Geoffraybool Jit::CanInvokeCompiledCode(ArtMethod* method) { 31635122443e5f8606cc5a660ac32745a06aefb341bNicolas Geoffray return code_cache_->ContainsPc(method->GetEntryPointFromQuickCompiledCode()); 31735122443e5f8606cc5a660ac32745a06aefb341bNicolas Geoffray} 31835122443e5f8606cc5a660ac32745a06aefb341bNicolas Geoffray 319e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu ChartierJit::~Jit() { 3204d77b6a511659f26fdc711e23825ffa6e7feed7aCalin Juravle DCHECK(!save_profiling_info_ || !ProfileSaver::IsStarted()); 321a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier if (dump_info_on_shutdown_) { 322a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier DumpInfo(LOG(INFO)); 323a4885cbaafd35fe9c60eb6cd95e41e2c86f54f66Mathieu Chartier } 324e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier DeleteThreadPool(); 325e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_compiler_handle_ != nullptr) { 326e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier jit_unload_(jit_compiler_handle_); 32772918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartier jit_compiler_handle_ = nullptr; 328e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 329e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier if (jit_library_handle_ != nullptr) { 330e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier dlclose(jit_library_handle_); 33172918ea854d182ef25b2352bfe1c46c1e916a141Mathieu Chartier jit_library_handle_ = nullptr; 332e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier } 333e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} 334e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier 335160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammervoid Jit::NewTypeLoadedIfUsingJit(mirror::Class* type) { 336ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if (!Runtime::Current()->UseJitCompilation()) { 337ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle // No need to notify if we only use the JIT to save profiles. 338ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle return; 339ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle } 340160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer jit::Jit* jit = Runtime::Current()->GetJit(); 341ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if (jit->generate_debug_info_) { 342fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer DCHECK(jit->jit_types_loaded_ != nullptr); 343fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer jit->jit_types_loaded_(jit->jit_compiler_handle_, &type, 1); 344fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer } 345fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer} 346fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer 347fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammervoid Jit::DumpTypeInfoForLoadedTypes(ClassLinker* linker) { 348fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer struct CollectClasses : public ClassVisitor { 3491aa8ec2ccdd7bedb6d30d91c89f1e94ab23c4439Mathieu Chartier bool operator()(mirror::Class* klass) override { 350fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer classes_.push_back(klass); 351fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer return true; 352fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer } 3539b1c9b761dea9bc48a2994e3d4de46fc10343a25Mathieu Chartier std::vector<mirror::Class*> classes_; 354fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer }; 355fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer 356fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer if (generate_debug_info_) { 357fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer ScopedObjectAccess so(Thread::Current()); 358fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer 359fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer CollectClasses visitor; 360fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer linker->VisitClasses(&visitor); 361fffbee4d158259633ec7b7f712eaf75be86bd4e5Tamas Berghammer jit_types_loaded_(jit_compiler_handle_, visitor.classes_.data(), visitor.classes_.size()); 362160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer } 363160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer} 364160e6df5debaf77223eebddb8a4e3f7c5e729ad0Tamas Berghammer 365b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffrayextern "C" void art_quick_osr_stub(void** stack, 366b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray uint32_t stack_size_in_bytes, 367b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray const uint8_t* native_pc, 368b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray JValue* result, 369b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray const char* shorty, 370b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray Thread* self); 371b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 372b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffraybool Jit::MaybeDoOnStackReplacement(Thread* thread, 373b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray ArtMethod* method, 374b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray uint32_t dex_pc, 375b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray int32_t dex_pc_offset, 376b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray JValue* result) { 377e86621386d18a3a7178af6cfc2c05d1b34c3b995Nicolas Geoffray if (!kEnableOnStackReplacement) { 378e86621386d18a3a7178af6cfc2c05d1b34c3b995Nicolas Geoffray return false; 379e86621386d18a3a7178af6cfc2c05d1b34c3b995Nicolas Geoffray } 380e86621386d18a3a7178af6cfc2c05d1b34c3b995Nicolas Geoffray 381b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray Jit* jit = Runtime::Current()->GetJit(); 382b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray if (jit == nullptr) { 383b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray return false; 384b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray } 385b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 386b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray if (UNLIKELY(__builtin_frame_address(0) < thread->GetStackEnd())) { 387b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray // Don't attempt to do an OSR if we are close to the stack limit. Since 388b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray // the interpreter frames are still on stack, OSR has the potential 389b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray // to stack overflow even for a simple loop. 390b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray // b/27094810. 391b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray return false; 392b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray } 393b88d59ef4fe611fe47e50a6a19785e03bbd5f93bNicolas Geoffray 394d9bc433a89c41a255d1b669d075f802597839bdcNicolas Geoffray // Get the actual Java method if this method is from a proxy class. The compiler 395d9bc433a89c41a255d1b669d075f802597839bdcNicolas Geoffray // and the JIT code cache do not expect methods from proxy classes. 396d9bc433a89c41a255d1b669d075f802597839bdcNicolas Geoffray method = method->GetInterfaceMethodIfProxy(sizeof(void*)); 397d9bc433a89c41a255d1b669d075f802597839bdcNicolas Geoffray 398b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray // Cheap check if the method has been compiled already. That's an indicator that we should 399b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray // osr into it. 400b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray if (!jit->GetCodeCache()->ContainsPc(method->GetEntryPointFromQuickCompiledCode())) { 401b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray return false; 402b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray } 403b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 404c0b2796ec2056a6ea15c67df1251db250ba7e9a2Nicolas Geoffray // Fetch some data before looking up for an OSR method. We don't want thread 405c0b2796ec2056a6ea15c67df1251db250ba7e9a2Nicolas Geoffray // suspension once we hold an OSR method, as the JIT code cache could delete the OSR 406c0b2796ec2056a6ea15c67df1251db250ba7e9a2Nicolas Geoffray // method while we are being suspended. 407b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray const size_t number_of_vregs = method->GetCodeItem()->registers_size_; 408d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray const char* shorty = method->GetShorty(); 409d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray std::string method_name(VLOG_IS_ON(jit) ? PrettyMethod(method) : ""); 410d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray void** memory = nullptr; 411d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray size_t frame_size = 0; 412d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray ShadowFrame* shadow_frame = nullptr; 413d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray const uint8_t* native_pc = nullptr; 414b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 415d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray { 416d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray ScopedAssertNoThreadSuspension sts(thread, "Holding OSR method"); 417d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray const OatQuickMethodHeader* osr_method = jit->GetCodeCache()->LookupOsrMethodHeader(method); 418d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray if (osr_method == nullptr) { 419d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // No osr method yet, just return to the interpreter. 420d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray return false; 421d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray } 422b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 423d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray CodeInfo code_info = osr_method->GetOptimizedCodeInfo(); 42409ed09866da6d8c7448ef297c148bfa577a247c2David Srbecky CodeInfoEncoding encoding = code_info.ExtractEncoding(); 425b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 426d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // Find stack map starting at the target dex_pc. 427d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray StackMap stack_map = code_info.GetOsrStackMapForDexPc(dex_pc + dex_pc_offset, encoding); 428d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray if (!stack_map.IsValid()) { 429d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // There is no OSR stack map for this dex pc offset. Just return to the interpreter in the 430d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // hope that the next branch has one. 431d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray return false; 432d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray } 433b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 434d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // We found a stack map, now fill the frame with dex register values from the interpreter's 435d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // shadow frame. 436d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray DexRegisterMap vreg_map = 437d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_vregs); 438d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 439d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray frame_size = osr_method->GetFrameSizeInBytes(); 440d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 441d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // Allocate memory to put shadow frame values. The osr stub will copy that memory to 442d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // stack. 443d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // Note that we could pass the shadow frame to the stub, and let it copy the values there, 444d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // but that is engineering complexity not worth the effort for something like OSR. 445d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray memory = reinterpret_cast<void**>(malloc(frame_size)); 446d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray CHECK(memory != nullptr); 447d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray memset(memory, 0, frame_size); 448d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 449d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // Art ABI: ArtMethod is at the bottom of the stack. 450d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray memory[0] = method; 451d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 452d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray shadow_frame = thread->PopShadowFrame(); 453d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray if (!vreg_map.IsValid()) { 454d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // If we don't have a dex register map, then there are no live dex registers at 455d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // this dex pc. 456d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray } else { 457d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray for (uint16_t vreg = 0; vreg < number_of_vregs; ++vreg) { 458d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray DexRegisterLocation::Kind location = 459d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray vreg_map.GetLocationKind(vreg, number_of_vregs, code_info, encoding); 460d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray if (location == DexRegisterLocation::Kind::kNone) { 461c0b2796ec2056a6ea15c67df1251db250ba7e9a2Nicolas Geoffray // Dex register is dead or uninitialized. 462d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray continue; 463d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray } 464d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 465d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray if (location == DexRegisterLocation::Kind::kConstant) { 466d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray // We skip constants because the compiled code knows how to handle them. 467d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray continue; 468d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray } 469d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 4707dc11782ff0a5dffcd8108f256f8975f0b3e8076David Srbecky DCHECK_EQ(location, DexRegisterLocation::Kind::kInStack); 471d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 472d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray int32_t vreg_value = shadow_frame->GetVReg(vreg); 473d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray int32_t slot_offset = vreg_map.GetStackOffsetInBytes(vreg, 474d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray number_of_vregs, 475d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray code_info, 476d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray encoding); 477d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray DCHECK_LT(slot_offset, static_cast<int32_t>(frame_size)); 478d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray DCHECK_GT(slot_offset, 0); 479d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray (reinterpret_cast<int32_t*>(memory))[slot_offset / sizeof(int32_t)] = vreg_value; 480d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray } 481b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray } 482d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 48309ed09866da6d8c7448ef297c148bfa577a247c2David Srbecky native_pc = stack_map.GetNativePcOffset(encoding.stack_map_encoding) + 48409ed09866da6d8c7448ef297c148bfa577a247c2David Srbecky osr_method->GetEntryPoint(); 485d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray VLOG(jit) << "Jumping to " 486d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray << method_name 487d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray << "@" 488d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray << std::hex << reinterpret_cast<uintptr_t>(native_pc); 489b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray } 490b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 491b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray { 492b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray ManagedStack fragment; 493b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray thread->PushManagedStackFragment(&fragment); 494b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray (*art_quick_osr_stub)(memory, 495b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray frame_size, 496b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray native_pc, 497b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray result, 498d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray shorty, 499b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray thread); 500d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray 501b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray if (UNLIKELY(thread->GetException() == Thread::GetDeoptimizationException())) { 502b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray thread->DeoptimizeWithDeoptimizationException(result); 503b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray } 504b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray thread->PopManagedStackFragment(fragment); 505b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray } 506b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray free(memory); 507b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray thread->PushShadowFrame(shadow_frame); 508d186dd8ecb1f25d3786d6b27adcd6b0b9ca04ea0Nicolas Geoffray VLOG(jit) << "Done running OSR code for " << method_name; 509b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray return true; 510b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray} 511b331febbab8e916680faba722cc84b66b84218a3Nicolas Geoffray 512a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffrayvoid Jit::AddMemoryUsage(ArtMethod* method, size_t bytes) { 513a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray if (bytes > 4 * MB) { 514a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray LOG(INFO) << "Compiler allocated " 515a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray << PrettySize(bytes) 516a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray << " to compile " 517a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray << PrettyMethod(method); 518a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray } 519a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray MutexLock mu(Thread::Current(), lock_); 520a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray memory_use_.AddValue(bytes); 521a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray} 522a4f81546373f4cb5fa6dfc135307ee0a1d930872Nicolas Geoffray 523274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffrayclass JitCompileTask FINAL : public Task { 524274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray public: 525274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray enum TaskKind { 526274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray kAllocateProfile, 527274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray kCompile, 528274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray kCompileOsr 529274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray }; 530274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 531274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray JitCompileTask(ArtMethod* method, TaskKind kind) : method_(method), kind_(kind) { 532274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ScopedObjectAccess soa(Thread::Current()); 533274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Add a global ref to the class to prevent class unloading until compilation is done. 534274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray klass_ = soa.Vm()->AddGlobalRef(soa.Self(), method_->GetDeclaringClass()); 535274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray CHECK(klass_ != nullptr); 536274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 537274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 538274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ~JitCompileTask() { 539274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ScopedObjectAccess soa(Thread::Current()); 540274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray soa.Vm()->DeleteGlobalRef(soa.Self(), klass_); 541274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 542274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 543274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray void Run(Thread* self) OVERRIDE { 544274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ScopedObjectAccess soa(self); 545274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (kind_ == kCompile) { 54671cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray Runtime::Current()->GetJit()->CompileMethod(method_, self, /* osr */ false); 547274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } else if (kind_ == kCompileOsr) { 54871cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray Runtime::Current()->GetJit()->CompileMethod(method_, self, /* osr */ true); 549274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } else { 550274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK(kind_ == kAllocateProfile); 551274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (ProfilingInfo::Create(self, method_, /* retry_allocation */ true)) { 552274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray VLOG(jit) << "Start profiling " << PrettyMethod(method_); 553274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 554274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 555274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 556274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 557274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray void Finalize() OVERRIDE { 558274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray delete this; 559274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 560274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 561274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray private: 562274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ArtMethod* const method_; 563274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray const TaskKind kind_; 564274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray jobject klass_; 565274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 566274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DISALLOW_IMPLICIT_CONSTRUCTORS(JitCompileTask); 567274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray}; 568274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 56971cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffrayvoid Jit::AddSamples(Thread* self, ArtMethod* method, uint16_t count, bool with_backedges) { 570274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (thread_pool_ == nullptr) { 571274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Should only see this when shutting down. 572274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK(Runtime::Current()->IsShuttingDown(self)); 573274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray return; 574274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 575274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 576250a378d5a2152662e0fa820f2b38f794ddd3596Nicolas Geoffray if (method->IsClassInitializer() || method->IsNative() || !method->IsCompilable()) { 577274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // We do not want to compile such methods. 578274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray return; 579274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 580274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK(thread_pool_ != nullptr); 581274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK_GT(warm_method_threshold_, 0); 582274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK_GT(hot_method_threshold_, warm_method_threshold_); 583274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK_GT(osr_method_threshold_, hot_method_threshold_); 584274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK_GE(priority_thread_weight_, 1); 585274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK_LE(priority_thread_weight_, hot_method_threshold_); 586274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 587274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray int32_t starting_count = method->GetCounter(); 588274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (Jit::ShouldUsePriorityThreadWeight()) { 589274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray count *= priority_thread_weight_; 590274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 591274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray int32_t new_count = starting_count + count; // int32 here to avoid wrap-around; 592274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (starting_count < warm_method_threshold_) { 59371cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray if ((new_count >= warm_method_threshold_) && 59471cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray (method->GetProfilingInfo(sizeof(void*)) == nullptr)) { 595274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray bool success = ProfilingInfo::Create(self, method, /* retry_allocation */ false); 596274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (success) { 597274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray VLOG(jit) << "Start profiling " << PrettyMethod(method); 598274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 599274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 600274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (thread_pool_ == nullptr) { 601274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Calling ProfilingInfo::Create might put us in a suspended state, which could 602274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // lead to the thread pool being deleted when we are shutting down. 603274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK(Runtime::Current()->IsShuttingDown(self)); 604274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray return; 605274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 606274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 607274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (!success) { 608274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // We failed allocating. Instead of doing the collection on the Java thread, we push 609274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // an allocation to a compiler thread, that will do the collection. 610274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kAllocateProfile)); 611274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 612274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 613274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Avoid jumping more than one state at a time. 614274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray new_count = std::min(new_count, hot_method_threshold_ - 1); 615ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle } else if (use_jit_compilation_) { 616ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if (starting_count < hot_method_threshold_) { 617ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if ((new_count >= hot_method_threshold_) && 618ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle !code_cache_->ContainsPc(method->GetEntryPointFromQuickCompiledCode())) { 619ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle DCHECK(thread_pool_ != nullptr); 620ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kCompile)); 621ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle } 622ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle // Avoid jumping more than one state at a time. 623ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle new_count = std::min(new_count, osr_method_threshold_ - 1); 624ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle } else if (starting_count < osr_method_threshold_) { 625ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if (!with_backedges) { 626ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle // If the samples don't contain any back edge, we don't increment the hotness. 627ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle return; 628ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle } 629ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if ((new_count >= osr_method_threshold_) && !code_cache_->IsOsrCompiled(method)) { 630ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle DCHECK(thread_pool_ != nullptr); 631ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle thread_pool_->AddTask(self, new JitCompileTask(method, JitCompileTask::kCompileOsr)); 632ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle } 633274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 634274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 635274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Update hotness counter 636274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray method->SetCounter(new_count); 637274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray} 638274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 639274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffrayvoid Jit::MethodEntered(Thread* thread, ArtMethod* method) { 640ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle Runtime* runtime = Runtime::Current(); 641ffc87076dda9878cb2cc098149bae441d38b9268Calin Juravle if (UNLIKELY(runtime->UseJitCompilation() && runtime->GetJit()->JitAtFirstUse())) { 642274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // The compiler requires a ProfilingInfo object. 643274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ProfilingInfo::Create(thread, method, /* retry_allocation */ true); 644274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray JitCompileTask compile_task(method, JitCompileTask::kCompile); 645274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray compile_task.Run(thread); 646274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray return; 647274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 648274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 649274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ProfilingInfo* profiling_info = method->GetProfilingInfo(sizeof(void*)); 650274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Update the entrypoint if the ProfilingInfo has one. The interpreter will call it 651274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // instead of interpreting the method. 652480d5108fa62f28cbc2e7072610f974953ff73a8Nicolas Geoffray if ((profiling_info != nullptr) && (profiling_info->GetSavedEntryPoint() != nullptr)) { 653480d5108fa62f28cbc2e7072610f974953ff73a8Nicolas Geoffray Runtime::Current()->GetInstrumentation()->UpdateMethodsCode( 654480d5108fa62f28cbc2e7072610f974953ff73a8Nicolas Geoffray method, profiling_info->GetSavedEntryPoint()); 655274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } else { 65671cd50fb67fa48667b0ab59aa436a582c04ba43dNicolas Geoffray AddSamples(thread, method, 1, /* with_backedges */false); 657274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 658274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray} 659274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 660274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffrayvoid Jit::InvokeVirtualOrInterface(Thread* thread, 661274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray mirror::Object* this_object, 662274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ArtMethod* caller, 663274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray uint32_t dex_pc, 664274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ArtMethod* callee ATTRIBUTE_UNUSED) { 665274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ScopedAssertNoThreadSuspension ants(thread, __FUNCTION__); 666274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray DCHECK(this_object != nullptr); 667274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray ProfilingInfo* info = caller->GetProfilingInfo(sizeof(void*)); 668274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (info != nullptr) { 669274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // Since the instrumentation is marked from the declaring class we need to mark the card so 670274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray // that mod-union tables and card rescanning know about the update. 671274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray Runtime::Current()->GetHeap()->WriteBarrierEveryFieldOf(caller->GetDeclaringClass()); 672274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray info->AddInvokeInfo(dex_pc, this_object->GetClass()); 673274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 674274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray} 675274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 676274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffrayvoid Jit::WaitForCompilationToFinish(Thread* self) { 677274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray if (thread_pool_ != nullptr) { 678274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray thread_pool_->Wait(self, false, false); 679274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray } 680274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray} 681274fe4adcb0610a9920be7814d9beb9cac6417ceNicolas Geoffray 682e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} // namespace jit 683e5f13e57ff8fa36342beb33830b3ec5942a61ccaMathieu Chartier} // namespace art 684