blob: 48322f0a169c70b99de076f587d0ab84c1a78e00 [file] [log] [blame]
Elliott Hughes2faa5f12012-01-30 14:42:07 -08001/*
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 */
Carl Shapiro1fb86202011-06-27 17:43:13 -070016
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070017#include "runtime.h"
Carl Shapiro1fb86202011-06-27 17:43:13 -070018
Brian Carlstrombd86bcc2013-03-10 20:26:16 -070019// sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc
20#include <sys/mount.h>
21#include <linux/fs.h>
22
Brian Carlstromdbf05b72011-12-15 00:55:24 -080023#include <signal.h>
Elliott Hughesd06a6c72012-05-30 17:59:06 -070024#include <sys/syscall.h>
Mathieu Chartierda44d772014-04-01 15:01:46 -070025#include <valgrind.h>
Brian Carlstromdbf05b72011-12-15 00:55:24 -080026
Elliott Hughesffe67362011-07-17 12:09:27 -070027#include <cstdio>
28#include <cstdlib>
Brian Carlstrom8a436592011-08-15 21:27:23 -070029#include <limits>
Carl Shapiro2ed144c2011-07-26 16:52:08 -070030#include <vector>
Dave Allison39c3bfb2014-01-28 18:33:52 -080031#include <fcntl.h>
Elliott Hughesffe67362011-07-17 12:09:27 -070032
Vladimir Marko7624d252014-05-02 14:40:15 +010033#include "arch/arm/quick_method_frame_info_arm.h"
Ian Rogers166db042013-07-26 12:05:57 -070034#include "arch/arm/registers_arm.h"
Vladimir Marko7624d252014-05-02 14:40:15 +010035#include "arch/arm64/quick_method_frame_info_arm64.h"
Stuart Monteithb95a5342014-03-12 13:32:32 +000036#include "arch/arm64/registers_arm64.h"
Vladimir Marko7624d252014-05-02 14:40:15 +010037#include "arch/mips/quick_method_frame_info_mips.h"
Ian Rogers166db042013-07-26 12:05:57 -070038#include "arch/mips/registers_mips.h"
Vladimir Marko7624d252014-05-02 14:40:15 +010039#include "arch/x86/quick_method_frame_info_x86.h"
Ian Rogers166db042013-07-26 12:05:57 -070040#include "arch/x86/registers_x86.h"
Vladimir Marko7624d252014-05-02 14:40:15 +010041#include "arch/x86_64/quick_method_frame_info_x86_64.h"
Ian Rogersef7d42f2014-01-06 12:55:46 -080042#include "arch/x86_64/registers_x86_64.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080043#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070044#include "class_linker.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070045#include "debugger.h"
Ian Rogers1d54e732013-05-02 21:10:01 -070046#include "gc/accounting/card_table-inl.h"
47#include "gc/heap.h"
48#include "gc/space/space.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070049#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080050#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070051#include "intern_table.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070052#include "jni_internal.h"
Brian Carlstromea46f952013-07-30 01:26:50 -070053#include "mirror/art_field-inl.h"
54#include "mirror/art_method-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080055#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080056#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080057#include "mirror/class_loader.h"
Mathieu Chartierc528dba2013-11-26 12:00:11 -080058#include "mirror/stack_trace_element.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080059#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070060#include "monitor.h"
Brian Carlstrom491ca9e2014-03-02 18:24:38 -080061#include "parsed_options.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070062#include "oat_file.h"
Vladimir Marko7624d252014-05-02 14:40:15 +010063#include "quick/quick_method_frame_info.h"
Ian Rogers53b8b092014-03-13 23:45:53 -070064#include "reflection.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070065#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070066#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070067#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070068#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070069#include "sirt_ref.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070070#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070071#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070072#include "trace.h"
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +010073#include "transaction.h"
Dave Allison0aded082013-11-07 13:15:11 -080074#include "profiler.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070075#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070076#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070077#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070078
Brian Carlstrom7934ac22013-07-26 10:54:15 -070079#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070080
Dave Allison39c3bfb2014-01-28 18:33:52 -080081#ifdef HAVE_ANDROID_OS
82#include "cutils/properties.h"
83#endif
84
Carl Shapiro1fb86202011-06-27 17:43:13 -070085namespace art {
86
Mathieu Chartierc751fdc2014-03-30 15:25:44 -070087static constexpr bool kEnableJavaStackTraceHandler = true;
Ian Rogers8afeb852014-04-02 14:55:49 -070088const char* Runtime::kDefaultInstructionSetFeatures =
89 STRINGIFY(ART_DEFAULT_INSTRUCTION_SET_FEATURES);
Carl Shapiro2ed144c2011-07-26 16:52:08 -070090Runtime* Runtime::instance_ = NULL;
91
Elliott Hughesdcc24742011-09-07 14:02:44 -070092Runtime::Runtime()
Ian Rogers6ed19fd2014-03-20 08:10:17 -070093 : pre_allocated_OutOfMemoryError_(nullptr),
94 resolution_method_(nullptr),
95 imt_conflict_method_(nullptr),
96 default_imt_(nullptr),
Vladimir Marko7624d252014-05-02 14:40:15 +010097 instruction_set_(kNone),
Ian Rogers6ed19fd2014-03-20 08:10:17 -070098 compiler_callbacks_(nullptr),
Elliott Hughesd9c67be2012-02-02 19:54:06 -080099 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -0700100 is_concurrent_gc_enabled_(true),
Anwar Ghuloum87183592013-08-14 12:12:19 -0700101 is_explicit_gc_disabled_(false),
Elliott Hughes6cf23882012-06-15 15:42:07 -0700102 default_stack_size_(0),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800103 heap_(nullptr),
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700104 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800105 monitor_list_(nullptr),
106 monitor_pool_(nullptr),
107 thread_list_(nullptr),
108 intern_table_(nullptr),
109 class_linker_(nullptr),
110 signal_catcher_(nullptr),
111 java_vm_(nullptr),
Mathieu Chartier15d34022014-02-26 17:16:38 -0800112 fault_message_lock_("Fault message lock"),
113 fault_message_(""),
Ian Rogers719d1a32014-03-06 12:13:39 -0800114 method_verifier_lock_("Method verifiers lock"),
Ian Rogers120f1c72012-09-28 17:17:10 -0700115 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -0700116 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -0800117 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -0700118 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -0700119 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700120 finished_starting_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800121 vfprintf_(nullptr),
122 exit_(nullptr),
123 abort_(nullptr),
jeffhao2692b572011-12-16 15:42:28 -0800124 stats_enabled_(false),
Mathieu Chartierda44d772014-04-01 15:01:46 -0700125 running_on_valgrind_(RUNNING_ON_VALGRIND > 0),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800126 profile_(false),
127 profile_period_s_(0),
128 profile_duration_s_(0),
129 profile_interval_us_(0),
130 profile_backoff_coefficient_(0),
Calin Juravle16590062014-04-07 18:07:43 +0300131 profile_start_immediately_(true),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800132 method_trace_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -0700133 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -0800134 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700135 use_compile_time_class_path_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800136 main_thread_group_(nullptr),
137 system_thread_group_(nullptr),
138 system_class_loader_(nullptr),
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100139 dump_gc_performance_on_shutdown_(false),
Sebastien Hertzee1d79a2014-02-21 15:46:30 +0100140 preinitialization_transaction_(nullptr),
Dave Allisonb373e092014-02-20 16:06:36 -0800141 null_pointer_handler_(nullptr),
142 suspend_handler_(nullptr),
Jeff Hao4a200f52014-04-01 14:58:49 -0700143 stack_overflow_handler_(nullptr),
144 verify_(false) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700145 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800146 callee_save_methods_[i] = nullptr;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700147 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700148}
149
Carl Shapiro61e019d2011-07-14 16:53:09 -0700150Runtime::~Runtime() {
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800151 if (dump_gc_performance_on_shutdown_) {
152 // This can't be called from the Heap destructor below because it
153 // could call RosAlloc::InspectAll() which needs the thread_list
154 // to be still alive.
155 heap_->DumpGcPerformanceInfo(LOG(INFO));
156 }
157
Ian Rogers120f1c72012-09-28 17:17:10 -0700158 Thread* self = Thread::Current();
159 {
160 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
161 shutting_down_started_ = true;
162 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700163 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700164 }
165 shutting_down_ = true;
166 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800167 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700168
Mathieu Chartiera6399032012-06-11 18:49:50 -0700169 // Make sure to let the GC complete if it is running.
Mathieu Chartier89a201e2014-05-02 10:27:26 -0700170 heap_->WaitForGcToComplete(gc::kGcCauseBackground, self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800171 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700172
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700173 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700174 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700175 delete signal_catcher_;
176
Elliott Hughes038a8062011-09-18 14:12:41 -0700177 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700178 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700179 delete monitor_list_;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800180 delete monitor_pool_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700181 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800182 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700183 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700184 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700185 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700186 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200187 verifier::MethodVerifier::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700188 // TODO: acquire a static mutex on Runtime to avoid racing.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800189 CHECK(instance_ == nullptr || instance_ == this);
190 instance_ = nullptr;
Dave Allisonb373e092014-02-20 16:06:36 -0800191
192 delete null_pointer_handler_;
193 delete suspend_handler_;
194 delete stack_overflow_handler_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700195}
196
Elliott Hughese0918552011-10-28 17:18:29 -0700197struct AbortState {
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700198 void Dump(std::ostream& os) NO_THREAD_SAFETY_ANALYSIS {
Ian Rogersf08e4732013-04-09 09:45:49 -0700199 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700200 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
201 return;
202 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700203 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700204 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800205 if (Runtime::Current() == NULL) {
206 os << "(Runtime does not yet exist!)\n";
207 return;
208 }
Elliott Hughese0918552011-10-28 17:18:29 -0700209 Thread* self = Thread::Current();
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700210 if (self == nullptr) {
Elliott Hughese0918552011-10-28 17:18:29 -0700211 os << "(Aborting thread was not attached to runtime!)\n";
212 } else {
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700213 os << "Aborting thread:\n";
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700214 if (Locks::mutator_lock_->IsExclusiveHeld(self) || Locks::mutator_lock_->IsSharedHeld(self)) {
215 DumpThread(os, self);
216 } else {
217 if (Locks::mutator_lock_->SharedTryLock(self)) {
218 DumpThread(os, self);
219 Locks::mutator_lock_->SharedUnlock(self);
220 }
Elliott Hughes899e7892012-01-24 14:57:32 -0800221 }
Elliott Hughese0918552011-10-28 17:18:29 -0700222 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700223 DumpAllThreads(os, self);
224 }
225
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700226 void DumpThread(std::ostream& os, Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
227 self->Dump(os);
228 if (self->IsExceptionPending()) {
229 ThrowLocation throw_location;
230 mirror::Throwable* exception = self->GetException(&throw_location);
231 os << "Pending exception " << PrettyTypeOf(exception)
232 << " thrown by '" << throw_location.Dump() << "'\n"
233 << exception->Dump();
234 }
235 }
236
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700237 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
238 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
239 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700240 if (!tll_already_held || !ml_already_held) {
241 os << "Dumping all threads without appropriate locks held:"
242 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700243 << (!ml_already_held ? " mutator lock" : "")
244 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700245 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700246 os << "All threads:\n";
247 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700248 }
249};
250
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700251void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700252 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800253
Elliott Hughes131aef82012-01-27 11:53:35 -0800254 // Ensure that we don't have multiple threads trying to abort at once,
255 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700256 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800257
Elliott Hughesffe67362011-07-17 12:09:27 -0700258 // Get any pending output out of the way.
259 fflush(NULL);
260
261 // Many people have difficulty distinguish aborts from crashes,
262 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700263 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800264 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700265
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700266 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700267 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700268 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700269 Runtime::Current()->abort_();
270 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700271 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700272 }
273
Elliott Hughesdd623db2013-06-11 11:20:23 -0700274#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700275 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
276 // which POSIX defines in terms of raise(3), which POSIX defines in terms
277 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
278 // libpthread, which means the stacks we dump would be useless. Calling
279 // tgkill(2) directly avoids that.
280 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700281 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
282 // If not, we could use sigaction(3) before calling tgkill(2) and lose this call to exit(3).
Brian Carlstrom700c8d32012-11-05 10:42:02 -0800283 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700284#else
285 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700286#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700287 // notreached
288}
289
Narayan Kamath3de95a72014-04-02 12:54:23 +0100290void Runtime::PreZygoteFork() {
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700291 heap_->PreZygoteFork();
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700292}
293
Elliott Hughesbf86d042011-08-31 17:53:14 -0700294void Runtime::CallExitHook(jint status) {
295 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700296 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700297 exit_(status);
298 LOG(WARNING) << "Exit hook returned instead of exiting!";
299 }
300}
301
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800302void Runtime::SweepSystemWeaks(IsMarkedCallback* visitor, void* arg) {
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700303 GetInternTable()->SweepInternTableWeaks(visitor, arg);
304 GetMonitorList()->SweepMonitorList(visitor, arg);
305 GetJavaVM()->SweepJniWeakGlobals(visitor, arg);
Mathieu Chartier412c7fc2014-02-07 12:18:39 -0800306 Dbg::UpdateObjectPointers(visitor, arg);
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700307}
308
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700309bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700310 // TODO: acquire a static mutex on Runtime to avoid racing.
311 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700312 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700313 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700314 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700315 instance_ = new Runtime;
316 if (!instance_->Init(options, ignore_unrecognized)) {
317 delete instance_;
318 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700319 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700320 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700321 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700322}
Elliott Hughes0af55432011-08-17 18:37:28 -0700323
Brian Carlstromce888532013-10-10 00:32:58 -0700324jobject CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800325 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromce888532013-10-10 00:32:58 -0700326 return NULL;
Brian Carlstromaded5f72011-10-07 17:15:04 -0700327 }
328
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700329 ScopedObjectAccess soa(Thread::Current());
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800330 ClassLinker* cl = Runtime::Current()->GetClassLinker();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700331
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800332 SirtRef<mirror::Class> class_loader_class(
333 soa.Self(), soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader));
334 CHECK(cl->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700335
Brian Carlstromea46f952013-07-30 01:26:50 -0700336 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800337 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700338 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700339
Ian Rogers53b8b092014-03-13 23:45:53 -0700340 JValue result = InvokeWithJValues(soa, nullptr, soa.EncodeMethod(getSystemClassLoader), nullptr);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800341 SirtRef<mirror::ClassLoader> class_loader(soa.Self(),
342 down_cast<mirror::ClassLoader*>(result.GetL()));
343 CHECK(class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700344 JNIEnv* env = soa.Self()->GetJniEnv();
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800345 ScopedLocalRef<jobject> system_class_loader(env,
346 soa.AddLocalReference<jobject>(class_loader.get()));
347 CHECK(system_class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700348
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800349 soa.Self()->SetClassLoaderOverride(class_loader.get());
Ian Rogers365c1022012-06-22 15:05:28 -0700350
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800351 SirtRef<mirror::Class> thread_class(
352 soa.Self(),
353 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread));
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800354 CHECK(cl->EnsureInitialized(thread_class, true, true));
Ian Rogers365c1022012-06-22 15:05:28 -0700355
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800356 mirror::ArtField* contextClassLoader =
357 thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500358 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700359
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100360 // We can't run in a transaction yet.
361 contextClassLoader->SetObject<false>(soa.Self()->GetPeer(), class_loader.get());
Brian Carlstromce888532013-10-10 00:32:58 -0700362
363 return env->NewGlobalRef(system_class_loader.get());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700364}
365
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700366bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800367 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700368
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700369 // Restore main thread state to kNative as expected by native code.
Ian Rogersa436fde2013-08-27 23:34:06 -0700370 Thread* self = Thread::Current();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700371 self->TransitionFromRunnableToSuspended(kNative);
372
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700373 started_ = true;
374
Brian Carlstromae826982011-11-09 01:33:42 -0800375 // InitNativeMethods needs to be after started_ so that the classes
376 // it touches will have methods linked to the oat file if necessary.
377 InitNativeMethods();
378
Ian Rogers365c1022012-06-22 15:05:28 -0700379 // Initialize well known thread group values that may be accessed threads while attaching.
380 InitThreadGroups(self);
381
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500382 Thread::FinishStartup();
383
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700384 if (is_zygote_) {
385 if (!InitZygote()) {
386 return false;
387 }
388 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700389 DidForkFromZygote();
390 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700391
Elliott Hughes85d15452011-09-16 17:33:01 -0700392 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700393
Brian Carlstromce888532013-10-10 00:32:58 -0700394 system_class_loader_ = CreateSystemClassLoader();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700395
Elliott Hughes225f5a12012-06-11 11:23:48 -0700396 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700397
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800398 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700399
400 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700401
Dave Allison0aded082013-11-07 13:15:11 -0800402 if (profile_) {
403 // User has asked for a profile using -Xprofile
Dave Allison39c3bfb2014-01-28 18:33:52 -0800404 // Create the profile file if it doesn't exist.
405 int fd = open(profile_output_filename_.c_str(), O_RDWR|O_CREAT|O_EXCL, 0660);
406 if (fd >= 0) {
407 close(fd);
408 }
Calin Juravle16590062014-04-07 18:07:43 +0300409 StartProfiler(profile_output_filename_.c_str(), "");
Dave Allison0aded082013-11-07 13:15:11 -0800410 }
411
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700412 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700413}
414
Ian Rogers120f1c72012-09-28 17:17:10 -0700415void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
416 DCHECK_GT(threads_being_born_, 0U);
417 threads_being_born_--;
418 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700419 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700420 }
421}
422
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700423// Do zygote-mode-only initialization.
424bool Runtime::InitZygote() {
425 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700426 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700427
428 // See storage config details at http://source.android.com/tech/storage/
429 // Create private mount namespace shared by all children
430 if (unshare(CLONE_NEWNS) == -1) {
431 PLOG(WARNING) << "Failed to unshare()";
432 return false;
433 }
434
435 // Mark rootfs as being a slave so that changes from default
436 // namespace only flow into our children.
437 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
438 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
439 return false;
440 }
441
442 // Create a staging tmpfs that is shared by our children; they will
443 // bind mount storage into their respective private namespaces, which
444 // are isolated from each other.
445 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
446 if (target_base != NULL) {
447 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
Jeff Sharkey52cd1e82013-09-17 16:25:12 -0700448 "uid=0,gid=1028,mode=0751") == -1) {
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700449 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
450 return false;
451 }
452 }
453
454 return true;
455}
456
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700457void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700458 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700459
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700460 // Create the thread pool.
461 heap_->CreateThreadPool();
462
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700463 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700464
465 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
466 // this will pause the runtime, so we probably want this to come last.
467 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700468}
469
470void Runtime::StartSignalCatcher() {
471 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700472 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700473 }
474}
475
Mathieu Chartier590fee92013-09-13 13:46:47 -0700476bool Runtime::IsShuttingDown(Thread* self) {
477 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
478 return IsShuttingDownLocked();
479}
480
Elliott Hughes85d15452011-09-16 17:33:01 -0700481void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800482 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700483
Elliott Hughes719b3232011-09-25 17:42:19 -0700484 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700485
486 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700487 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700488
Elliott Hughes719b3232011-09-25 17:42:19 -0700489 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700490 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
491 WellKnownClasses::java_lang_Daemons_start);
492 if (env->ExceptionCheck()) {
493 env->ExceptionDescribe();
494 LOG(FATAL) << "Error starting java.lang.Daemons";
495 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700496
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800497 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700498}
499
Elliott Hughes0af55432011-08-17 18:37:28 -0700500bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700501 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700502
Elliott Hughes90a33692011-08-30 13:27:07 -0700503 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
504 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700505 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700506 return false;
507 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800508 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700509
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700510 QuasiAtomic::Startup();
511
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800512 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700513
Brian Carlstroma004aa92012-02-08 18:05:09 -0800514 boot_class_path_string_ = options->boot_class_path_string_;
515 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700516 properties_ = options->properties_;
517
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000518 compiler_callbacks_ = options->compiler_callbacks_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700519 is_zygote_ = options->is_zygote_;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700520 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700521
Elliott Hughes0af55432011-08-17 18:37:28 -0700522 vfprintf_ = options->hook_vfprintf_;
523 exit_ = options->hook_exit_;
524 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700525
Elliott Hughesbe759c62011-09-08 19:38:21 -0700526 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700527 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700528
Brian Carlstrom2ec65202014-03-03 15:16:37 -0800529 compiler_options_ = options->compiler_options_;
530 image_compiler_options_ = options->image_compiler_options_;
531
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700532 max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_;
533
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700534 monitor_list_ = new MonitorList;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800535 monitor_pool_ = MonitorPool::Create();
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800536 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700537 intern_table_ = new InternTable;
538
Jeff Hao4a200f52014-04-01 14:58:49 -0700539 verify_ = options->verify_;
Logan Chiendd361c92012-04-10 23:40:37 +0800540
Ian Rogers62d6c772013-02-27 08:32:07 -0800541 if (options->interpreter_only_) {
542 GetInstrumentation()->ForceInterpretOnly();
543 }
544
Dave Allisonad9697a2014-05-09 21:42:36 +0000545 if (options->explicit_checks_ != (ParsedOptions::kExplicitSuspendCheck |
Dave Allisonb373e092014-02-20 16:06:36 -0800546 ParsedOptions::kExplicitNullCheck |
Dave Allisonad9697a2014-05-09 21:42:36 +0000547 ParsedOptions::kExplicitStackOverflowCheck) || kEnableJavaStackTraceHandler) {
Dave Allisonb373e092014-02-20 16:06:36 -0800548 fault_manager.Init();
549
Mathieu Chartierc751fdc2014-03-30 15:25:44 -0700550 // These need to be in a specific order. The null point check handler must be
551 // after the suspend check and stack overflow check handlers.
Dave Allisonb373e092014-02-20 16:06:36 -0800552 if ((options->explicit_checks_ & ParsedOptions::kExplicitSuspendCheck) == 0) {
553 suspend_handler_ = new SuspensionHandler(&fault_manager);
554 }
555
556 if ((options->explicit_checks_ & ParsedOptions::kExplicitStackOverflowCheck) == 0) {
557 stack_overflow_handler_ = new StackOverflowHandler(&fault_manager);
558 }
559
560 if ((options->explicit_checks_ & ParsedOptions::kExplicitNullCheck) == 0) {
561 null_pointer_handler_ = new NullPointerHandler(&fault_manager);
562 }
Mathieu Chartierc751fdc2014-03-30 15:25:44 -0700563
564 if (kEnableJavaStackTraceHandler) {
565 new JavaStackTraceHandler(&fault_manager);
566 }
Dave Allisonb373e092014-02-20 16:06:36 -0800567 }
568
Ian Rogers1d54e732013-05-02 21:10:01 -0700569 heap_ = new gc::Heap(options->heap_initial_size_,
570 options->heap_growth_limit_,
571 options->heap_min_free_,
572 options->heap_max_free_,
573 options->heap_target_utilization_,
Mathieu Chartier2f8da3e2014-04-15 15:37:02 -0700574 options->foreground_heap_growth_multiplier_,
Ian Rogers1d54e732013-05-02 21:10:01 -0700575 options->heap_maximum_size_,
576 options->image_,
Narayan Kamath11d9f062014-04-23 20:24:57 +0100577 options->image_isa_,
Mathieu Chartier0de9f732013-11-22 17:58:48 -0800578 options->collector_type_,
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800579 options->background_collector_type_,
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700580 options->parallel_gc_threads_,
581 options->conc_gc_threads_,
582 options->low_memory_mode_,
583 options->long_pause_log_threshold_,
584 options->long_gc_log_threshold_,
Mathieu Chartier692fafd2013-11-29 17:24:40 -0800585 options->ignore_max_footprint_,
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800586 options->use_tlab_,
587 options->verify_pre_gc_heap_,
Mathieu Chartier6f365cc2014-04-23 12:42:27 -0700588 options->verify_pre_sweeping_heap_,
Hiroshi Yamauchia4adbfd2014-02-04 18:12:17 -0800589 options->verify_post_gc_heap_,
590 options->verify_pre_gc_rosalloc_,
Mathieu Chartier6f365cc2014-04-23 12:42:27 -0700591 options->verify_pre_sweeping_rosalloc_,
Hiroshi Yamauchia4adbfd2014-02-04 18:12:17 -0800592 options->verify_post_gc_rosalloc_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700593
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800594 dump_gc_performance_on_shutdown_ = options->dump_gc_performance_on_shutdown_;
595
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700596 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700597 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700598
Elliott Hughesa0957642011-09-02 14:27:33 -0700599 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700600
Elliott Hughesbe759c62011-09-08 19:38:21 -0700601 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700602
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800603 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
604 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
605 // thread, we do not get a java peer.
606 Thread* self = Thread::Attach("main", false, NULL, false);
Ian Rogersdd7624d2014-03-14 17:43:00 -0700607 CHECK_EQ(self->GetThreadId(), ThreadList::kMainThreadId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700608 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700609
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700610 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700611 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700612
Ian Rogersa436fde2013-08-27 23:34:06 -0700613 // Now we're attached, we can take the heap locks and validate the heap.
Ian Rogers141d6222012-04-05 12:23:06 -0700614 GetHeap()->EnableObjectValidation();
615
Ian Rogers1d54e732013-05-02 21:10:01 -0700616 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700617 class_linker_ = new ClassLinker(intern_table_);
618 if (GetHeap()->HasImageSpace()) {
619 class_linker_->InitFromImage();
Brian Carlstroma004aa92012-02-08 18:05:09 -0800620 } else {
621 CHECK(options->boot_class_path_ != NULL);
622 CHECK_NE(options->boot_class_path_->size(), 0U);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700623 class_linker_->InitFromCompiler(*options->boot_class_path_);
Brian Carlstroma004aa92012-02-08 18:05:09 -0800624 }
625 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800626 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700627
jeffhaob5e81852012-03-12 11:15:45 -0700628 method_trace_ = options->method_trace_;
629 method_trace_file_ = options->method_trace_file_;
630 method_trace_file_size_ = options->method_trace_file_size_;
631
Dave Allison0aded082013-11-07 13:15:11 -0800632 // Extract the profile options.
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800633 // TODO: move into a Trace options struct?
Dave Allison0aded082013-11-07 13:15:11 -0800634 profile_period_s_ = options->profile_period_s_;
635 profile_duration_s_ = options->profile_duration_s_;
636 profile_interval_us_ = options->profile_interval_us_;
637 profile_backoff_coefficient_ = options->profile_backoff_coefficient_;
Calin Juravle16590062014-04-07 18:07:43 +0300638 profile_start_immediately_ = options->profile_start_immediately_;
Dave Allison0aded082013-11-07 13:15:11 -0800639 profile_ = options->profile_;
640 profile_output_filename_ = options->profile_output_filename_;
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800641 // TODO: move this to just be an Trace::Start argument
642 Trace::SetDefaultClockSource(options->profile_clock_source_);
Dave Allison0aded082013-11-07 13:15:11 -0800643
jeffhaob5e81852012-03-12 11:15:45 -0700644 if (options->method_trace_) {
Jeff Hao23009dc2013-08-22 15:36:42 -0700645 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0,
646 false, false, 0);
jeffhaob5e81852012-03-12 11:15:45 -0700647 }
648
Ian Rogersa436fde2013-08-27 23:34:06 -0700649 // Pre-allocate an OutOfMemoryError for the double-OOME case.
650 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800651 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; "
652 "no stack available");
Ian Rogersa436fde2013-08-27 23:34:06 -0700653 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
654 self->ClearException();
655
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800656 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700657 return true;
658}
659
Elliott Hughes038a8062011-09-18 14:12:41 -0700660void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800661 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700662 Thread* self = Thread::Current();
663 JNIEnv* env = self->GetJniEnv();
664
Elliott Hughes418d20f2011-09-22 14:00:39 -0700665 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700666 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700667
Elliott Hughes418d20f2011-09-22 14:00:39 -0700668 // First set up JniConstants, which is used by both the runtime's built-in native
669 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700670 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700671 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700672
Elliott Hughes418d20f2011-09-22 14:00:39 -0700673 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700674 RegisterRuntimeNativeMethods(env);
675
Elliott Hughes418d20f2011-09-22 14:00:39 -0700676 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
677 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
678 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700679 {
680 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
681 std::string reason;
682 self->TransitionFromSuspendedToRunnable();
Mathieu Chartier055d46c2014-02-06 11:22:17 -0800683 SirtRef<mirror::ClassLoader> class_loader(self, nullptr);
684 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, class_loader, &reason)) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700685 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
686 }
687 self->TransitionFromRunnableToSuspended(kNative);
688 }
Ian Rogersef28b142012-11-30 14:22:18 -0800689
690 // Initialize well known classes that may invoke runtime native methods.
691 WellKnownClasses::LateInit(env);
692
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800693 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700694}
695
Ian Rogers365c1022012-06-22 15:05:28 -0700696void Runtime::InitThreadGroups(Thread* self) {
697 JNIEnvExt* env = self->GetJniEnv();
698 ScopedJniEnvLocalRefState env_state(env);
699 main_thread_group_ =
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800700 env->NewGlobalRef(env->GetStaticObjectField(
701 WellKnownClasses::java_lang_ThreadGroup,
702 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700703 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700704 system_thread_group_ =
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800705 env->NewGlobalRef(env->GetStaticObjectField(
706 WellKnownClasses::java_lang_ThreadGroup,
707 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700708 CHECK(system_thread_group_ != NULL || IsCompiler());
709}
710
711jobject Runtime::GetMainThreadGroup() const {
712 CHECK(main_thread_group_ != NULL || IsCompiler());
713 return main_thread_group_;
714}
715
716jobject Runtime::GetSystemThreadGroup() const {
717 CHECK(system_thread_group_ != NULL || IsCompiler());
718 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700719}
720
Brian Carlstromce888532013-10-10 00:32:58 -0700721jobject Runtime::GetSystemClassLoader() const {
722 CHECK(system_class_loader_ != NULL || IsCompiler());
723 return system_class_loader_;
724}
725
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700726void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
727#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800728 // Register Throwable first so that registration of other native methods can throw exceptions
729 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700730 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700731 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700732 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700733 REGISTER(register_dalvik_system_VMStack);
Narayan Kamath8b2c8b92014-03-31 16:44:54 +0100734 REGISTER(register_dalvik_system_ZygoteHooks);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700735 REGISTER(register_java_lang_Class);
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700736 REGISTER(register_java_lang_DexCache);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700737 REGISTER(register_java_lang_Object);
738 REGISTER(register_java_lang_Runtime);
739 REGISTER(register_java_lang_String);
740 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700741 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700742 REGISTER(register_java_lang_VMClassLoader);
Mathieu Chartier78f7b4c2014-05-06 10:57:27 -0700743 REGISTER(register_java_lang_ref_Reference);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700744 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700745 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700746 REGISTER(register_java_lang_reflect_Field);
747 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400748 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700749 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700750 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700751 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700752 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700753#undef REGISTER
754}
755
Elliott Hughesc967f782012-04-16 10:23:15 -0700756void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700757 GetClassLinker()->DumpForSigQuit(os);
758 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700759 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700760 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700761 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700762
Elliott Hughesc967f782012-04-16 10:23:15 -0700763 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -0800764 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700765}
766
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800767void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700768 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800769 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
770 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
771 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700772 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
773 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800774 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
775 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
776 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
777 }
778}
779
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700780void Runtime::SetStatsEnabled(bool new_state) {
781 if (new_state == true) {
782 GetStats()->Clear(~0);
783 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
784 Thread::Current()->GetStats()->Clear(~0);
Ian Rogersfa824272013-11-05 16:12:57 -0800785 GetInstrumentation()->InstrumentQuickAllocEntryPoints();
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -0700786 } else {
Ian Rogersfa824272013-11-05 16:12:57 -0800787 GetInstrumentation()->UninstrumentQuickAllocEntryPoints();
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700788 }
789 stats_enabled_ = new_state;
790}
791
792void Runtime::ResetStats(int kinds) {
793 GetStats()->Clear(kinds & 0xffff);
794 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
795 Thread::Current()->GetStats()->Clear(kinds >> 16);
796}
797
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700798int32_t Runtime::GetStat(int kind) {
799 RuntimeStats* stats;
800 if (kind < (1<<16)) {
801 stats = GetStats();
802 } else {
803 stats = Thread::Current()->GetStats();
804 kind >>= 16;
805 }
806 switch (kind) {
807 case KIND_ALLOCATED_OBJECTS:
808 return stats->allocated_objects;
809 case KIND_ALLOCATED_BYTES:
810 return stats->allocated_bytes;
811 case KIND_FREED_OBJECTS:
812 return stats->freed_objects;
813 case KIND_FREED_BYTES:
814 return stats->freed_bytes;
815 case KIND_GC_INVOCATIONS:
816 return stats->gc_for_alloc_count;
817 case KIND_CLASS_INIT_COUNT:
818 return stats->class_init_count;
819 case KIND_CLASS_INIT_TIME:
820 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -0700821 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700822 case KIND_EXT_ALLOCATED_OBJECTS:
823 case KIND_EXT_ALLOCATED_BYTES:
824 case KIND_EXT_FREED_OBJECTS:
825 case KIND_EXT_FREED_BYTES:
826 return 0; // backward compatibility
827 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -0700828 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700829 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700830 }
831}
832
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700833void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -0700834 SignalSet signals;
835 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700836 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -0700837 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -0700838 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -0700839 signals.Add(SIGUSR1);
840 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700841}
842
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800843bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
844 bool create_peer) {
845 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -0700846 if (thread_name == NULL) {
847 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
848 }
Ian Rogers120f1c72012-09-28 17:17:10 -0700849 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700850}
851
Elliott Hughesd92bec42011-09-02 17:04:36 -0700852void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -0700853 Thread* self = Thread::Current();
854 if (self == NULL) {
855 LOG(FATAL) << "attempting to detach thread that is not attached";
856 }
Ian Rogers0399dde2012-06-06 17:09:28 -0700857 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -0700858 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
859 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700860 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -0700861}
862
Ian Rogersa436fde2013-08-27 23:34:06 -0700863 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const {
864 if (pre_allocated_OutOfMemoryError_ == NULL) {
865 LOG(ERROR) << "Failed to return pre-allocated OOME";
866 }
867 return pre_allocated_OutOfMemoryError_;
868}
869
Mathieu Chartier893263b2014-03-04 11:07:42 -0800870void Runtime::VisitConstantRoots(RootCallback* callback, void* arg) {
871 // Visit the classes held as static in mirror classes, these can be visited concurrently and only
Mathieu Chartier3b05e9b2014-03-25 09:29:43 -0700872 // need to be visited once per GC since they never change.
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800873 mirror::ArtField::VisitRoots(callback, arg);
874 mirror::ArtMethod::VisitRoots(callback, arg);
875 mirror::Class::VisitRoots(callback, arg);
876 mirror::StackTraceElement::VisitRoots(callback, arg);
877 mirror::String::VisitRoots(callback, arg);
878 mirror::Throwable::VisitRoots(callback, arg);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800879 // Visit all the primitive array types classes.
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800880 mirror::PrimitiveArray<uint8_t>::VisitRoots(callback, arg); // BooleanArray
881 mirror::PrimitiveArray<int8_t>::VisitRoots(callback, arg); // ByteArray
882 mirror::PrimitiveArray<uint16_t>::VisitRoots(callback, arg); // CharArray
883 mirror::PrimitiveArray<double>::VisitRoots(callback, arg); // DoubleArray
884 mirror::PrimitiveArray<float>::VisitRoots(callback, arg); // FloatArray
885 mirror::PrimitiveArray<int32_t>::VisitRoots(callback, arg); // IntArray
886 mirror::PrimitiveArray<int64_t>::VisitRoots(callback, arg); // LongArray
887 mirror::PrimitiveArray<int16_t>::VisitRoots(callback, arg); // ShortArray
Mathieu Chartier893263b2014-03-04 11:07:42 -0800888}
889
890void Runtime::VisitConcurrentRoots(RootCallback* callback, void* arg, VisitRootFlags flags) {
891 intern_table_->VisitRoots(callback, arg, flags);
892 class_linker_->VisitRoots(callback, arg, flags);
Mathieu Chartier3b05e9b2014-03-25 09:29:43 -0700893 Dbg::VisitRoots(callback, arg);
Mathieu Chartier893263b2014-03-04 11:07:42 -0800894 if ((flags & kVisitRootFlagNewRoots) == 0) {
895 // Guaranteed to have no new roots in the constant roots.
896 VisitConstantRoots(callback, arg);
897 }
898}
899
900void Runtime::VisitNonThreadRoots(RootCallback* callback, void* arg) {
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800901 java_vm_->VisitRoots(callback, arg);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700902 if (pre_allocated_OutOfMemoryError_ != nullptr) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800903 callback(reinterpret_cast<mirror::Object**>(&pre_allocated_OutOfMemoryError_), arg, 0,
904 kRootVMInternal);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700905 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr);
Elliott Hughes225f5a12012-06-11 11:23:48 -0700906 }
Mathieu Chartier815873e2014-02-13 18:02:13 -0800907 callback(reinterpret_cast<mirror::Object**>(&resolution_method_), arg, 0, kRootVMInternal);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700908 DCHECK(resolution_method_ != nullptr);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700909 if (HasImtConflictMethod()) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800910 callback(reinterpret_cast<mirror::Object**>(&imt_conflict_method_), arg, 0, kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700911 }
912 if (HasDefaultImt()) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800913 callback(reinterpret_cast<mirror::Object**>(&default_imt_), arg, 0, kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700914 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700915 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Mathieu Chartier590fee92013-09-13 13:46:47 -0700916 if (callee_save_methods_[i] != nullptr) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800917 callback(reinterpret_cast<mirror::Object**>(&callee_save_methods_[i]), arg, 0,
918 kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700919 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700920 }
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800921 {
Ian Rogers719d1a32014-03-06 12:13:39 -0800922 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800923 for (verifier::MethodVerifier* verifier : method_verifiers_) {
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800924 verifier->VisitRoots(callback, arg);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800925 }
926 }
Sebastien Hertzee1d79a2014-02-21 15:46:30 +0100927 if (preinitialization_transaction_ != nullptr) {
928 preinitialization_transaction_->VisitRoots(callback, arg);
Mathieu Chartier893263b2014-03-04 11:07:42 -0800929 }
Mathieu Chartier3b05e9b2014-03-25 09:29:43 -0700930 instrumentation_.VisitRoots(callback, arg);
Brian Carlstrome24fa612011-09-29 00:53:55 -0700931}
932
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800933void Runtime::VisitNonConcurrentRoots(RootCallback* callback, void* arg) {
934 thread_list_->VisitRoots(callback, arg);
935 VisitNonThreadRoots(callback, arg);
Mathieu Chartier858f1c52012-10-17 17:45:55 -0700936}
937
Mathieu Chartier893263b2014-03-04 11:07:42 -0800938void Runtime::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) {
939 VisitConcurrentRoots(callback, arg, flags);
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800940 VisitNonConcurrentRoots(callback, arg);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -0700941}
942
Jeff Hao88474b42013-10-23 16:24:40 -0700943mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) {
944 Thread* self = Thread::Current();
945 SirtRef<mirror::ObjectArray<mirror::ArtMethod> > imtable(self, cl->AllocArtMethodArray(self, 64));
946 mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod();
Mathieu Chartier590fee92013-09-13 13:46:47 -0700947 for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) {
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100948 imtable->Set<false>(i, imt_conflict_method);
Jeff Hao88474b42013-10-23 16:24:40 -0700949 }
950 return imtable.get();
951}
952
953mirror::ArtMethod* Runtime::CreateImtConflictMethod() {
Jeff Hao88474b42013-10-23 16:24:40 -0700954 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800955 Runtime* runtime = Runtime::Current();
956 ClassLinker* class_linker = runtime->GetClassLinker();
957 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700958 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogersef7d42f2014-01-06 12:55:46 -0800959 // TODO: use a special method for imt conflict method saves.
Jeff Hao88474b42013-10-23 16:24:40 -0700960 method->SetDexMethodIndex(DexFile::kDexNoIndex);
961 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800962 if (runtime->IsCompiler()) {
963 method->SetEntryPointFromPortableCompiledCode(nullptr);
964 method->SetEntryPointFromQuickCompiledCode(nullptr);
965 } else {
966 method->SetEntryPointFromPortableCompiledCode(GetPortableImtConflictTrampoline(class_linker));
967 method->SetEntryPointFromQuickCompiledCode(GetQuickImtConflictTrampoline(class_linker));
968 }
Jeff Hao88474b42013-10-23 16:24:40 -0700969 return method.get();
970}
971
Brian Carlstromea46f952013-07-30 01:26:50 -0700972mirror::ArtMethod* Runtime::CreateResolutionMethod() {
Ian Rogers50b35e22012-10-04 10:09:15 -0700973 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800974 Runtime* runtime = Runtime::Current();
975 ClassLinker* class_linker = runtime->GetClassLinker();
976 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700977 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers19846512012-02-24 11:42:47 -0800978 // TODO: use a special method for resolution method saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700979 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Hao58df3272013-04-22 15:28:53 -0700980 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800981 if (runtime->IsCompiler()) {
982 method->SetEntryPointFromPortableCompiledCode(nullptr);
983 method->SetEntryPointFromQuickCompiledCode(nullptr);
984 } else {
985 method->SetEntryPointFromPortableCompiledCode(GetPortableResolutionTrampoline(class_linker));
986 method->SetEntryPointFromQuickCompiledCode(GetQuickResolutionTrampoline(class_linker));
987 }
Ian Rogers19846512012-02-24 11:42:47 -0800988 return method.get();
989}
990
Vladimir Marko7624d252014-05-02 14:40:15 +0100991mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(CalleeSaveType type) {
Ian Rogers50b35e22012-10-04 10:09:15 -0700992 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800993 Runtime* runtime = Runtime::Current();
994 ClassLinker* class_linker = runtime->GetClassLinker();
995 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700996 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers6d4d9fc2011-11-30 16:24:48 -0800997 // TODO: use a special method for callee saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700998 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Ian Rogersef7d42f2014-01-06 12:55:46 -0800999 method->SetEntryPointFromPortableCompiledCode(nullptr);
1000 method->SetEntryPointFromQuickCompiledCode(nullptr);
Vladimir Marko7624d252014-05-02 14:40:15 +01001001 DCHECK_NE(instruction_set_, kNone);
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001002 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001003}
1004
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001005void Runtime::DisallowNewSystemWeaks() {
1006 monitor_list_->DisallowNewMonitors();
1007 intern_table_->DisallowNewInterns();
1008 java_vm_->DisallowNewWeakGlobals();
Mathieu Chartier412c7fc2014-02-07 12:18:39 -08001009 Dbg::DisallowNewObjectRegistryObjects();
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001010}
1011
1012void Runtime::AllowNewSystemWeaks() {
1013 monitor_list_->AllowNewMonitors();
1014 intern_table_->AllowNewInterns();
1015 java_vm_->AllowNewWeakGlobals();
Mathieu Chartier412c7fc2014-02-07 12:18:39 -08001016 Dbg::AllowNewObjectRegistryObjects();
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001017}
1018
Vladimir Marko7624d252014-05-02 14:40:15 +01001019void Runtime::SetInstructionSet(InstructionSet instruction_set) {
1020 instruction_set_ = instruction_set;
1021 if ((instruction_set_ == kThumb2) || (instruction_set_ == kArm)) {
1022 for (int i = 0; i != kLastCalleeSaveType; ++i) {
1023 CalleeSaveType type = static_cast<CalleeSaveType>(i);
1024 callee_save_method_frame_infos_[i] = arm::ArmCalleeSaveMethodFrameInfo(type);
1025 }
1026 } else if (instruction_set_ == kMips) {
1027 for (int i = 0; i != kLastCalleeSaveType; ++i) {
1028 CalleeSaveType type = static_cast<CalleeSaveType>(i);
1029 callee_save_method_frame_infos_[i] = mips::MipsCalleeSaveMethodFrameInfo(type);
1030 }
1031 } else if (instruction_set_ == kX86) {
1032 for (int i = 0; i != kLastCalleeSaveType; ++i) {
1033 CalleeSaveType type = static_cast<CalleeSaveType>(i);
1034 callee_save_method_frame_infos_[i] = x86::X86CalleeSaveMethodFrameInfo(type);
1035 }
1036 } else if (instruction_set_ == kX86_64) {
1037 for (int i = 0; i != kLastCalleeSaveType; ++i) {
1038 CalleeSaveType type = static_cast<CalleeSaveType>(i);
1039 callee_save_method_frame_infos_[i] = x86_64::X86_64CalleeSaveMethodFrameInfo(type);
1040 }
1041 } else if (instruction_set_ == kArm64) {
1042 for (int i = 0; i != kLastCalleeSaveType; ++i) {
1043 CalleeSaveType type = static_cast<CalleeSaveType>(i);
1044 callee_save_method_frame_infos_[i] = arm64::Arm64CalleeSaveMethodFrameInfo(type);
1045 }
1046 } else {
1047 UNIMPLEMENTED(FATAL) << instruction_set_;
1048 }
1049}
1050
Brian Carlstromea46f952013-07-30 01:26:50 -07001051void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001052 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001053 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001054}
1055
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001056const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001057 if (class_loader == NULL) {
1058 return GetClassLinker()->GetBootClassPath();
1059 }
1060 CHECK(UseCompileTimeClassPath());
1061 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1062 CHECK(it != compile_time_class_paths_.end());
1063 return it->second;
1064}
1065
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001066void Runtime::SetCompileTimeClassPath(jobject class_loader,
1067 std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001068 CHECK(!IsStarted());
1069 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001070 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001071}
1072
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001073void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) {
1074 DCHECK(verifier != nullptr);
Ian Rogers719d1a32014-03-06 12:13:39 -08001075 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001076 method_verifiers_.insert(verifier);
1077}
1078
1079void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) {
1080 DCHECK(verifier != nullptr);
Ian Rogers719d1a32014-03-06 12:13:39 -08001081 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001082 auto it = method_verifiers_.find(verifier);
1083 CHECK(it != method_verifiers_.end());
1084 method_verifiers_.erase(it);
1085}
1086
Calin Juravle16590062014-04-07 18:07:43 +03001087void Runtime::StartProfiler(const char* appDir, const char* procName) {
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001088 BackgroundMethodSamplingProfiler::Start(profile_period_s_, profile_duration_s_, appDir,
Calin Juravle16590062014-04-07 18:07:43 +03001089 procName, profile_interval_us_, profile_backoff_coefficient_, profile_start_immediately_);
Dave Allison0aded082013-11-07 13:15:11 -08001090}
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001091
1092// Transaction support.
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001093void Runtime::EnterTransactionMode(Transaction* transaction) {
1094 DCHECK(IsCompiler());
1095 DCHECK(transaction != nullptr);
1096 DCHECK(!IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001097 preinitialization_transaction_ = transaction;
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001098}
1099
1100void Runtime::ExitTransactionMode() {
1101 DCHECK(IsCompiler());
1102 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001103 preinitialization_transaction_ = nullptr;
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001104}
1105
1106void Runtime::RecordWriteField32(mirror::Object* obj, MemberOffset field_offset,
1107 uint32_t value, bool is_volatile) const {
1108 DCHECK(IsCompiler());
1109 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001110 preinitialization_transaction_->RecordWriteField32(obj, field_offset, value, is_volatile);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001111}
1112
1113void Runtime::RecordWriteField64(mirror::Object* obj, MemberOffset field_offset,
1114 uint64_t value, bool is_volatile) const {
1115 DCHECK(IsCompiler());
1116 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001117 preinitialization_transaction_->RecordWriteField64(obj, field_offset, value, is_volatile);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001118}
1119
1120void Runtime::RecordWriteFieldReference(mirror::Object* obj, MemberOffset field_offset,
1121 mirror::Object* value, bool is_volatile) const {
1122 DCHECK(IsCompiler());
1123 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001124 preinitialization_transaction_->RecordWriteFieldReference(obj, field_offset, value, is_volatile);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001125}
1126
1127void Runtime::RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const {
1128 DCHECK(IsCompiler());
1129 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001130 preinitialization_transaction_->RecordWriteArray(array, index, value);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001131}
1132
1133void Runtime::RecordStrongStringInsertion(mirror::String* s, uint32_t hash_code) const {
1134 DCHECK(IsCompiler());
1135 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001136 preinitialization_transaction_->RecordStrongStringInsertion(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001137}
1138
1139void Runtime::RecordWeakStringInsertion(mirror::String* s, uint32_t hash_code) const {
1140 DCHECK(IsCompiler());
1141 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001142 preinitialization_transaction_->RecordWeakStringInsertion(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001143}
1144
1145void Runtime::RecordStrongStringRemoval(mirror::String* s, uint32_t hash_code) const {
1146 DCHECK(IsCompiler());
1147 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001148 preinitialization_transaction_->RecordStrongStringRemoval(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001149}
1150
1151void Runtime::RecordWeakStringRemoval(mirror::String* s, uint32_t hash_code) const {
1152 DCHECK(IsCompiler());
1153 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001154 preinitialization_transaction_->RecordWeakStringRemoval(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001155}
Mathieu Chartier15d34022014-02-26 17:16:38 -08001156
1157void Runtime::SetFaultMessage(const std::string& message) {
1158 MutexLock mu(Thread::Current(), fault_message_lock_);
1159 fault_message_ = message;
1160}
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001161
Ian Rogers8afeb852014-04-02 14:55:49 -07001162void Runtime::AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::string>* argv)
1163 const {
Ian Rogers9bc54402014-04-17 16:40:01 -07001164 if (GetInstrumentation()->InterpretOnly()) {
1165 argv->push_back("--compiler-filter=interpret-only");
1166 }
1167
Ian Rogers8afeb852014-04-02 14:55:49 -07001168 argv->push_back("--runtime-arg");
1169 std::string checkstr = "-implicit-checks";
1170
1171 int nchecks = 0;
1172 char checksep = ':';
1173
1174 if (!ExplicitNullChecks()) {
1175 checkstr += checksep;
1176 checksep = ',';
1177 checkstr += "null";
1178 ++nchecks;
1179 }
1180 if (!ExplicitSuspendChecks()) {
1181 checkstr += checksep;
1182 checksep = ',';
1183 checkstr += "suspend";
1184 ++nchecks;
1185 }
1186
1187 if (!ExplicitStackOverflowChecks()) {
1188 checkstr += checksep;
1189 checksep = ',';
1190 checkstr += "stack";
1191 ++nchecks;
1192 }
1193
1194 if (nchecks == 0) {
1195 checkstr += ":none";
1196 }
1197 argv->push_back(checkstr);
1198
1199 // Make the dex2oat instruction set match that of the launching runtime. If we have multiple
1200 // architecture support, dex2oat may be compiled as a different instruction-set than that
1201 // currently being executed.
1202#if defined(__arm__)
1203 argv->push_back("--instruction-set=arm");
1204#elif defined(__aarch64__)
1205 argv->push_back("--instruction-set=arm64");
1206#elif defined(__i386__)
1207 argv->push_back("--instruction-set=x86");
1208#elif defined(__x86_64__)
1209 argv->push_back("--instruction-set=x86_64");
1210#elif defined(__mips__)
1211 argv->push_back("--instruction-set=mips");
1212#endif
1213
1214 std::string features("--instruction-set-features=");
1215 features += GetDefaultInstructionSetFeatures();
1216 argv->push_back(features);
1217}
1218
Dave Allison39c3bfb2014-01-28 18:33:52 -08001219void Runtime::UpdateProfilerState(int state) {
Brian Carlstrom4d466a82014-05-08 19:05:29 -07001220 VLOG(profiler) << "Profiler state updated to " << state;
Dave Allison39c3bfb2014-01-28 18:33:52 -08001221}
Carl Shapiro1fb86202011-06-27 17:43:13 -07001222} // namespace art