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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
Ian Rogers166db042013-07-26 12:05:57 -070033#include "arch/arm/registers_arm.h"
Stuart Monteithb95a5342014-03-12 13:32:32 +000034#include "arch/arm64/registers_arm64.h"
Ian Rogers166db042013-07-26 12:05:57 -070035#include "arch/mips/registers_mips.h"
36#include "arch/x86/registers_x86.h"
Ian Rogersef7d42f2014-01-06 12:55:46 -080037#include "arch/x86_64/registers_x86_64.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080038#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070039#include "class_linker.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070040#include "debugger.h"
Ian Rogers1d54e732013-05-02 21:10:01 -070041#include "gc/accounting/card_table-inl.h"
42#include "gc/heap.h"
43#include "gc/space/space.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070044#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080045#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070046#include "intern_table.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070047#include "jni_internal.h"
Brian Carlstromea46f952013-07-30 01:26:50 -070048#include "mirror/art_field-inl.h"
49#include "mirror/art_method-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080050#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080051#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080052#include "mirror/class_loader.h"
Mathieu Chartierc528dba2013-11-26 12:00:11 -080053#include "mirror/stack_trace_element.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080054#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070055#include "monitor.h"
Brian Carlstrom491ca9e2014-03-02 18:24:38 -080056#include "parsed_options.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070057#include "oat_file.h"
Ian Rogers53b8b092014-03-13 23:45:53 -070058#include "reflection.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070059#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070060#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070061#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070062#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070063#include "sirt_ref.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070064#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070065#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070066#include "trace.h"
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +010067#include "transaction.h"
Dave Allison0aded082013-11-07 13:15:11 -080068#include "profiler.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070069#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070070#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070071#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070072
Brian Carlstrom7934ac22013-07-26 10:54:15 -070073#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070074
Dave Allison39c3bfb2014-01-28 18:33:52 -080075#ifdef HAVE_ANDROID_OS
76#include "cutils/properties.h"
77#endif
78
Carl Shapiro1fb86202011-06-27 17:43:13 -070079namespace art {
80
Mathieu Chartierc751fdc2014-03-30 15:25:44 -070081static constexpr bool kEnableJavaStackTraceHandler = true;
Ian Rogers8afeb852014-04-02 14:55:49 -070082const char* Runtime::kDefaultInstructionSetFeatures =
83 STRINGIFY(ART_DEFAULT_INSTRUCTION_SET_FEATURES);
Carl Shapiro2ed144c2011-07-26 16:52:08 -070084Runtime* Runtime::instance_ = NULL;
85
Elliott Hughesdcc24742011-09-07 14:02:44 -070086Runtime::Runtime()
Ian Rogers6ed19fd2014-03-20 08:10:17 -070087 : pre_allocated_OutOfMemoryError_(nullptr),
88 resolution_method_(nullptr),
89 imt_conflict_method_(nullptr),
90 default_imt_(nullptr),
91 compiler_callbacks_(nullptr),
Elliott Hughesd9c67be2012-02-02 19:54:06 -080092 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070093 is_concurrent_gc_enabled_(true),
Anwar Ghuloum87183592013-08-14 12:12:19 -070094 is_explicit_gc_disabled_(false),
Elliott Hughes6cf23882012-06-15 15:42:07 -070095 default_stack_size_(0),
Ian Rogersef7d42f2014-01-06 12:55:46 -080096 heap_(nullptr),
Ian Rogersd9c4fc92013-10-01 19:45:43 -070097 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation),
Ian Rogersef7d42f2014-01-06 12:55:46 -080098 monitor_list_(nullptr),
99 monitor_pool_(nullptr),
100 thread_list_(nullptr),
101 intern_table_(nullptr),
102 class_linker_(nullptr),
103 signal_catcher_(nullptr),
104 java_vm_(nullptr),
Mathieu Chartier15d34022014-02-26 17:16:38 -0800105 fault_message_lock_("Fault message lock"),
106 fault_message_(""),
Ian Rogers719d1a32014-03-06 12:13:39 -0800107 method_verifier_lock_("Method verifiers lock"),
Ian Rogers120f1c72012-09-28 17:17:10 -0700108 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -0700109 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -0800110 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -0700111 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -0700112 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700113 finished_starting_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800114 vfprintf_(nullptr),
115 exit_(nullptr),
116 abort_(nullptr),
jeffhao2692b572011-12-16 15:42:28 -0800117 stats_enabled_(false),
Mathieu Chartierda44d772014-04-01 15:01:46 -0700118 running_on_valgrind_(RUNNING_ON_VALGRIND > 0),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800119 profile_(false),
120 profile_period_s_(0),
121 profile_duration_s_(0),
122 profile_interval_us_(0),
123 profile_backoff_coefficient_(0),
Calin Juravle16590062014-04-07 18:07:43 +0300124 profile_start_immediately_(true),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800125 method_trace_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -0700126 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -0800127 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700128 use_compile_time_class_path_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800129 main_thread_group_(nullptr),
130 system_thread_group_(nullptr),
131 system_class_loader_(nullptr),
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100132 dump_gc_performance_on_shutdown_(false),
Sebastien Hertzee1d79a2014-02-21 15:46:30 +0100133 preinitialization_transaction_(nullptr),
Dave Allisonb373e092014-02-20 16:06:36 -0800134 null_pointer_handler_(nullptr),
135 suspend_handler_(nullptr),
Jeff Hao4a200f52014-04-01 14:58:49 -0700136 stack_overflow_handler_(nullptr),
137 verify_(false) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700138 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800139 callee_save_methods_[i] = nullptr;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700140 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700141}
142
Carl Shapiro61e019d2011-07-14 16:53:09 -0700143Runtime::~Runtime() {
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800144 if (dump_gc_performance_on_shutdown_) {
145 // This can't be called from the Heap destructor below because it
146 // could call RosAlloc::InspectAll() which needs the thread_list
147 // to be still alive.
148 heap_->DumpGcPerformanceInfo(LOG(INFO));
149 }
150
Ian Rogers120f1c72012-09-28 17:17:10 -0700151 Thread* self = Thread::Current();
152 {
153 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
154 shutting_down_started_ = true;
155 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700156 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700157 }
158 shutting_down_ = true;
159 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800160 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700161
Mathieu Chartiera6399032012-06-11 18:49:50 -0700162 // Make sure to let the GC complete if it is running.
Mathieu Chartier89a201e2014-05-02 10:27:26 -0700163 heap_->WaitForGcToComplete(gc::kGcCauseBackground, self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800164 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700165
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700166 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700167 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700168 delete signal_catcher_;
169
Elliott Hughes038a8062011-09-18 14:12:41 -0700170 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700171 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700172 delete monitor_list_;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800173 delete monitor_pool_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700174 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800175 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700176 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700177 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700178 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700179 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200180 verifier::MethodVerifier::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700181 // TODO: acquire a static mutex on Runtime to avoid racing.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800182 CHECK(instance_ == nullptr || instance_ == this);
183 instance_ = nullptr;
Dave Allisonb373e092014-02-20 16:06:36 -0800184
185 delete null_pointer_handler_;
186 delete suspend_handler_;
187 delete stack_overflow_handler_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700188}
189
Elliott Hughese0918552011-10-28 17:18:29 -0700190struct AbortState {
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700191 void Dump(std::ostream& os) NO_THREAD_SAFETY_ANALYSIS {
Ian Rogersf08e4732013-04-09 09:45:49 -0700192 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700193 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
194 return;
195 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700196 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700197 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800198 if (Runtime::Current() == NULL) {
199 os << "(Runtime does not yet exist!)\n";
200 return;
201 }
Elliott Hughese0918552011-10-28 17:18:29 -0700202 Thread* self = Thread::Current();
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700203 if (self == nullptr) {
Elliott Hughese0918552011-10-28 17:18:29 -0700204 os << "(Aborting thread was not attached to runtime!)\n";
Ian Rogers37eecbd2014-05-11 02:08:15 -0700205 DumpKernelStack(os, GetTid(), " kernel: ", false);
206 DumpNativeStack(os, GetTid(), " native: ", nullptr);
Elliott Hughese0918552011-10-28 17:18:29 -0700207 } else {
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700208 os << "Aborting thread:\n";
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700209 if (Locks::mutator_lock_->IsExclusiveHeld(self) || Locks::mutator_lock_->IsSharedHeld(self)) {
210 DumpThread(os, self);
211 } else {
212 if (Locks::mutator_lock_->SharedTryLock(self)) {
213 DumpThread(os, self);
214 Locks::mutator_lock_->SharedUnlock(self);
215 }
Elliott Hughes899e7892012-01-24 14:57:32 -0800216 }
Elliott Hughese0918552011-10-28 17:18:29 -0700217 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700218 DumpAllThreads(os, self);
219 }
220
Mathieu Chartierc7a966d2014-04-10 18:06:32 -0700221 void DumpThread(std::ostream& os, Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
222 self->Dump(os);
223 if (self->IsExceptionPending()) {
224 ThrowLocation throw_location;
225 mirror::Throwable* exception = self->GetException(&throw_location);
226 os << "Pending exception " << PrettyTypeOf(exception)
227 << " thrown by '" << throw_location.Dump() << "'\n"
228 << exception->Dump();
229 }
230 }
231
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700232 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
233 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
234 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700235 if (!tll_already_held || !ml_already_held) {
236 os << "Dumping all threads without appropriate locks held:"
237 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700238 << (!ml_already_held ? " mutator lock" : "")
239 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700240 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700241 os << "All threads:\n";
242 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700243 }
244};
245
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700246void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700247 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800248
Elliott Hughes131aef82012-01-27 11:53:35 -0800249 // Ensure that we don't have multiple threads trying to abort at once,
250 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700251 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800252
Elliott Hughesffe67362011-07-17 12:09:27 -0700253 // Get any pending output out of the way.
254 fflush(NULL);
255
256 // Many people have difficulty distinguish aborts from crashes,
257 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700258 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800259 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700260
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700261 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700262 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700263 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700264 Runtime::Current()->abort_();
265 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700266 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700267 }
268
Elliott Hughesdd623db2013-06-11 11:20:23 -0700269#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700270 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
271 // which POSIX defines in terms of raise(3), which POSIX defines in terms
272 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
273 // libpthread, which means the stacks we dump would be useless. Calling
274 // tgkill(2) directly avoids that.
275 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700276 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
277 // 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 -0800278 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700279#else
280 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700281#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700282 // notreached
283}
284
Narayan Kamath3de95a72014-04-02 12:54:23 +0100285void Runtime::PreZygoteFork() {
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700286 heap_->PreZygoteFork();
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700287}
288
Elliott Hughesbf86d042011-08-31 17:53:14 -0700289void Runtime::CallExitHook(jint status) {
290 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700291 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700292 exit_(status);
293 LOG(WARNING) << "Exit hook returned instead of exiting!";
294 }
295}
296
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800297void Runtime::SweepSystemWeaks(IsMarkedCallback* visitor, void* arg) {
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700298 GetInternTable()->SweepInternTableWeaks(visitor, arg);
299 GetMonitorList()->SweepMonitorList(visitor, arg);
300 GetJavaVM()->SweepJniWeakGlobals(visitor, arg);
Mathieu Chartier412c7fc2014-02-07 12:18:39 -0800301 Dbg::UpdateObjectPointers(visitor, arg);
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700302}
303
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700304bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700305 // TODO: acquire a static mutex on Runtime to avoid racing.
306 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700307 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700308 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700309 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700310 instance_ = new Runtime;
311 if (!instance_->Init(options, ignore_unrecognized)) {
312 delete instance_;
313 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700314 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700315 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700316 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700317}
Elliott Hughes0af55432011-08-17 18:37:28 -0700318
Brian Carlstromce888532013-10-10 00:32:58 -0700319jobject CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800320 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromce888532013-10-10 00:32:58 -0700321 return NULL;
Brian Carlstromaded5f72011-10-07 17:15:04 -0700322 }
323
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700324 ScopedObjectAccess soa(Thread::Current());
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800325 ClassLinker* cl = Runtime::Current()->GetClassLinker();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700326
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800327 SirtRef<mirror::Class> class_loader_class(
328 soa.Self(), soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader));
329 CHECK(cl->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700330
Brian Carlstromea46f952013-07-30 01:26:50 -0700331 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800332 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700333 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700334
Ian Rogers53b8b092014-03-13 23:45:53 -0700335 JValue result = InvokeWithJValues(soa, nullptr, soa.EncodeMethod(getSystemClassLoader), nullptr);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800336 SirtRef<mirror::ClassLoader> class_loader(soa.Self(),
337 down_cast<mirror::ClassLoader*>(result.GetL()));
338 CHECK(class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700339 JNIEnv* env = soa.Self()->GetJniEnv();
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800340 ScopedLocalRef<jobject> system_class_loader(env,
341 soa.AddLocalReference<jobject>(class_loader.get()));
342 CHECK(system_class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700343
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800344 soa.Self()->SetClassLoaderOverride(class_loader.get());
Ian Rogers365c1022012-06-22 15:05:28 -0700345
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800346 SirtRef<mirror::Class> thread_class(
347 soa.Self(),
348 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread));
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800349 CHECK(cl->EnsureInitialized(thread_class, true, true));
Ian Rogers365c1022012-06-22 15:05:28 -0700350
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800351 mirror::ArtField* contextClassLoader =
352 thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500353 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700354
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100355 // We can't run in a transaction yet.
356 contextClassLoader->SetObject<false>(soa.Self()->GetPeer(), class_loader.get());
Brian Carlstromce888532013-10-10 00:32:58 -0700357
358 return env->NewGlobalRef(system_class_loader.get());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700359}
360
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700361bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800362 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700363
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700364 // Restore main thread state to kNative as expected by native code.
Ian Rogersa436fde2013-08-27 23:34:06 -0700365 Thread* self = Thread::Current();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700366 self->TransitionFromRunnableToSuspended(kNative);
367
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700368 started_ = true;
369
Brian Carlstromae826982011-11-09 01:33:42 -0800370 // InitNativeMethods needs to be after started_ so that the classes
371 // it touches will have methods linked to the oat file if necessary.
372 InitNativeMethods();
373
Ian Rogers365c1022012-06-22 15:05:28 -0700374 // Initialize well known thread group values that may be accessed threads while attaching.
375 InitThreadGroups(self);
376
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500377 Thread::FinishStartup();
378
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700379 if (is_zygote_) {
380 if (!InitZygote()) {
381 return false;
382 }
383 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700384 DidForkFromZygote();
385 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700386
Elliott Hughes85d15452011-09-16 17:33:01 -0700387 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700388
Brian Carlstromce888532013-10-10 00:32:58 -0700389 system_class_loader_ = CreateSystemClassLoader();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700390
Elliott Hughes225f5a12012-06-11 11:23:48 -0700391 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700392
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800393 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700394
395 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700396
Dave Allison0aded082013-11-07 13:15:11 -0800397 if (profile_) {
398 // User has asked for a profile using -Xprofile
Dave Allison39c3bfb2014-01-28 18:33:52 -0800399 // Create the profile file if it doesn't exist.
400 int fd = open(profile_output_filename_.c_str(), O_RDWR|O_CREAT|O_EXCL, 0660);
401 if (fd >= 0) {
402 close(fd);
403 }
Calin Juravle16590062014-04-07 18:07:43 +0300404 StartProfiler(profile_output_filename_.c_str(), "");
Dave Allison0aded082013-11-07 13:15:11 -0800405 }
406
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700407 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700408}
409
Ian Rogers120f1c72012-09-28 17:17:10 -0700410void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
411 DCHECK_GT(threads_being_born_, 0U);
412 threads_being_born_--;
413 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700414 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700415 }
416}
417
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700418// Do zygote-mode-only initialization.
419bool Runtime::InitZygote() {
420 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700421 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700422
423 // See storage config details at http://source.android.com/tech/storage/
424 // Create private mount namespace shared by all children
425 if (unshare(CLONE_NEWNS) == -1) {
426 PLOG(WARNING) << "Failed to unshare()";
427 return false;
428 }
429
430 // Mark rootfs as being a slave so that changes from default
431 // namespace only flow into our children.
432 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
433 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
434 return false;
435 }
436
437 // Create a staging tmpfs that is shared by our children; they will
438 // bind mount storage into their respective private namespaces, which
439 // are isolated from each other.
440 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
441 if (target_base != NULL) {
442 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
Jeff Sharkey52cd1e82013-09-17 16:25:12 -0700443 "uid=0,gid=1028,mode=0751") == -1) {
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700444 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
445 return false;
446 }
447 }
448
449 return true;
450}
451
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700452void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700453 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700454
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700455 // Create the thread pool.
456 heap_->CreateThreadPool();
457
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700458 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700459
460 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
461 // this will pause the runtime, so we probably want this to come last.
462 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700463}
464
465void Runtime::StartSignalCatcher() {
466 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700467 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700468 }
469}
470
Mathieu Chartier590fee92013-09-13 13:46:47 -0700471bool Runtime::IsShuttingDown(Thread* self) {
472 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
473 return IsShuttingDownLocked();
474}
475
Elliott Hughes85d15452011-09-16 17:33:01 -0700476void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800477 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700478
Elliott Hughes719b3232011-09-25 17:42:19 -0700479 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700480
481 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700482 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700483
Elliott Hughes719b3232011-09-25 17:42:19 -0700484 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700485 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
486 WellKnownClasses::java_lang_Daemons_start);
487 if (env->ExceptionCheck()) {
488 env->ExceptionDescribe();
489 LOG(FATAL) << "Error starting java.lang.Daemons";
490 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700491
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800492 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700493}
494
Elliott Hughes0af55432011-08-17 18:37:28 -0700495bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700496 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700497
Elliott Hughes90a33692011-08-30 13:27:07 -0700498 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
499 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700500 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700501 return false;
502 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800503 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700504
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700505 QuasiAtomic::Startup();
506
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800507 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700508
Brian Carlstroma004aa92012-02-08 18:05:09 -0800509 boot_class_path_string_ = options->boot_class_path_string_;
510 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700511 properties_ = options->properties_;
512
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000513 compiler_callbacks_ = options->compiler_callbacks_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700514 is_zygote_ = options->is_zygote_;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700515 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700516
Elliott Hughes0af55432011-08-17 18:37:28 -0700517 vfprintf_ = options->hook_vfprintf_;
518 exit_ = options->hook_exit_;
519 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700520
Elliott Hughesbe759c62011-09-08 19:38:21 -0700521 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700522 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700523
Brian Carlstrom2ec65202014-03-03 15:16:37 -0800524 compiler_options_ = options->compiler_options_;
525 image_compiler_options_ = options->image_compiler_options_;
526
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700527 max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_;
528
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700529 monitor_list_ = new MonitorList;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800530 monitor_pool_ = MonitorPool::Create();
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800531 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700532 intern_table_ = new InternTable;
533
Jeff Hao4a200f52014-04-01 14:58:49 -0700534 verify_ = options->verify_;
Logan Chiendd361c92012-04-10 23:40:37 +0800535
Ian Rogers62d6c772013-02-27 08:32:07 -0800536 if (options->interpreter_only_) {
537 GetInstrumentation()->ForceInterpretOnly();
538 }
539
Dave Allisonad9697a2014-05-09 21:42:36 +0000540 if (options->explicit_checks_ != (ParsedOptions::kExplicitSuspendCheck |
Dave Allisonb373e092014-02-20 16:06:36 -0800541 ParsedOptions::kExplicitNullCheck |
Dave Allisonad9697a2014-05-09 21:42:36 +0000542 ParsedOptions::kExplicitStackOverflowCheck) || kEnableJavaStackTraceHandler) {
Dave Allisonb373e092014-02-20 16:06:36 -0800543 fault_manager.Init();
544
Mathieu Chartierc751fdc2014-03-30 15:25:44 -0700545 // These need to be in a specific order. The null point check handler must be
546 // after the suspend check and stack overflow check handlers.
Dave Allisonb373e092014-02-20 16:06:36 -0800547 if ((options->explicit_checks_ & ParsedOptions::kExplicitSuspendCheck) == 0) {
548 suspend_handler_ = new SuspensionHandler(&fault_manager);
549 }
550
551 if ((options->explicit_checks_ & ParsedOptions::kExplicitStackOverflowCheck) == 0) {
552 stack_overflow_handler_ = new StackOverflowHandler(&fault_manager);
553 }
554
555 if ((options->explicit_checks_ & ParsedOptions::kExplicitNullCheck) == 0) {
556 null_pointer_handler_ = new NullPointerHandler(&fault_manager);
557 }
Mathieu Chartierc751fdc2014-03-30 15:25:44 -0700558
559 if (kEnableJavaStackTraceHandler) {
560 new JavaStackTraceHandler(&fault_manager);
561 }
Dave Allisonb373e092014-02-20 16:06:36 -0800562 }
563
Ian Rogers1d54e732013-05-02 21:10:01 -0700564 heap_ = new gc::Heap(options->heap_initial_size_,
565 options->heap_growth_limit_,
566 options->heap_min_free_,
567 options->heap_max_free_,
568 options->heap_target_utilization_,
Mathieu Chartier2f8da3e2014-04-15 15:37:02 -0700569 options->foreground_heap_growth_multiplier_,
Ian Rogers1d54e732013-05-02 21:10:01 -0700570 options->heap_maximum_size_,
571 options->image_,
Narayan Kamath11d9f062014-04-23 20:24:57 +0100572 options->image_isa_,
Mathieu Chartier0de9f732013-11-22 17:58:48 -0800573 options->collector_type_,
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800574 options->background_collector_type_,
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700575 options->parallel_gc_threads_,
576 options->conc_gc_threads_,
577 options->low_memory_mode_,
578 options->long_pause_log_threshold_,
579 options->long_gc_log_threshold_,
Mathieu Chartier692fafd2013-11-29 17:24:40 -0800580 options->ignore_max_footprint_,
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800581 options->use_tlab_,
582 options->verify_pre_gc_heap_,
Mathieu Chartier6f365cc2014-04-23 12:42:27 -0700583 options->verify_pre_sweeping_heap_,
Hiroshi Yamauchia4adbfd2014-02-04 18:12:17 -0800584 options->verify_post_gc_heap_,
585 options->verify_pre_gc_rosalloc_,
Mathieu Chartier6f365cc2014-04-23 12:42:27 -0700586 options->verify_pre_sweeping_rosalloc_,
Hiroshi Yamauchia4adbfd2014-02-04 18:12:17 -0800587 options->verify_post_gc_rosalloc_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700588
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800589 dump_gc_performance_on_shutdown_ = options->dump_gc_performance_on_shutdown_;
590
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700591 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700592 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700593
Elliott Hughesa0957642011-09-02 14:27:33 -0700594 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700595
Elliott Hughesbe759c62011-09-08 19:38:21 -0700596 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700597
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800598 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
599 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
600 // thread, we do not get a java peer.
601 Thread* self = Thread::Attach("main", false, NULL, false);
Ian Rogersdd7624d2014-03-14 17:43:00 -0700602 CHECK_EQ(self->GetThreadId(), ThreadList::kMainThreadId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700603 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700604
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700605 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700606 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700607
Ian Rogersa436fde2013-08-27 23:34:06 -0700608 // Now we're attached, we can take the heap locks and validate the heap.
Ian Rogers141d6222012-04-05 12:23:06 -0700609 GetHeap()->EnableObjectValidation();
610
Ian Rogers1d54e732013-05-02 21:10:01 -0700611 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700612 class_linker_ = new ClassLinker(intern_table_);
613 if (GetHeap()->HasImageSpace()) {
614 class_linker_->InitFromImage();
Brian Carlstroma004aa92012-02-08 18:05:09 -0800615 } else {
616 CHECK(options->boot_class_path_ != NULL);
617 CHECK_NE(options->boot_class_path_->size(), 0U);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700618 class_linker_->InitFromCompiler(*options->boot_class_path_);
Brian Carlstroma004aa92012-02-08 18:05:09 -0800619 }
620 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800621 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700622
jeffhaob5e81852012-03-12 11:15:45 -0700623 method_trace_ = options->method_trace_;
624 method_trace_file_ = options->method_trace_file_;
625 method_trace_file_size_ = options->method_trace_file_size_;
626
Dave Allison0aded082013-11-07 13:15:11 -0800627 // Extract the profile options.
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800628 // TODO: move into a Trace options struct?
Dave Allison0aded082013-11-07 13:15:11 -0800629 profile_period_s_ = options->profile_period_s_;
630 profile_duration_s_ = options->profile_duration_s_;
631 profile_interval_us_ = options->profile_interval_us_;
632 profile_backoff_coefficient_ = options->profile_backoff_coefficient_;
Calin Juravle16590062014-04-07 18:07:43 +0300633 profile_start_immediately_ = options->profile_start_immediately_;
Dave Allison0aded082013-11-07 13:15:11 -0800634 profile_ = options->profile_;
635 profile_output_filename_ = options->profile_output_filename_;
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800636 // TODO: move this to just be an Trace::Start argument
637 Trace::SetDefaultClockSource(options->profile_clock_source_);
Dave Allison0aded082013-11-07 13:15:11 -0800638
jeffhaob5e81852012-03-12 11:15:45 -0700639 if (options->method_trace_) {
Jeff Hao23009dc2013-08-22 15:36:42 -0700640 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0,
641 false, false, 0);
jeffhaob5e81852012-03-12 11:15:45 -0700642 }
643
Ian Rogersa436fde2013-08-27 23:34:06 -0700644 // Pre-allocate an OutOfMemoryError for the double-OOME case.
645 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800646 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; "
647 "no stack available");
Ian Rogersa436fde2013-08-27 23:34:06 -0700648 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
649 self->ClearException();
650
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800651 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700652 return true;
653}
654
Elliott Hughes038a8062011-09-18 14:12:41 -0700655void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800656 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700657 Thread* self = Thread::Current();
658 JNIEnv* env = self->GetJniEnv();
659
Elliott Hughes418d20f2011-09-22 14:00:39 -0700660 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700661 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700662
Elliott Hughes418d20f2011-09-22 14:00:39 -0700663 // First set up JniConstants, which is used by both the runtime's built-in native
664 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700665 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700666 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700667
Elliott Hughes418d20f2011-09-22 14:00:39 -0700668 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700669 RegisterRuntimeNativeMethods(env);
670
Elliott Hughes418d20f2011-09-22 14:00:39 -0700671 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
672 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
673 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700674 {
675 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
676 std::string reason;
677 self->TransitionFromSuspendedToRunnable();
Mathieu Chartier055d46c2014-02-06 11:22:17 -0800678 SirtRef<mirror::ClassLoader> class_loader(self, nullptr);
679 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, class_loader, &reason)) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700680 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
681 }
682 self->TransitionFromRunnableToSuspended(kNative);
683 }
Ian Rogersef28b142012-11-30 14:22:18 -0800684
685 // Initialize well known classes that may invoke runtime native methods.
686 WellKnownClasses::LateInit(env);
687
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800688 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700689}
690
Ian Rogers365c1022012-06-22 15:05:28 -0700691void Runtime::InitThreadGroups(Thread* self) {
692 JNIEnvExt* env = self->GetJniEnv();
693 ScopedJniEnvLocalRefState env_state(env);
694 main_thread_group_ =
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800695 env->NewGlobalRef(env->GetStaticObjectField(
696 WellKnownClasses::java_lang_ThreadGroup,
697 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700698 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700699 system_thread_group_ =
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800700 env->NewGlobalRef(env->GetStaticObjectField(
701 WellKnownClasses::java_lang_ThreadGroup,
702 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700703 CHECK(system_thread_group_ != NULL || IsCompiler());
704}
705
706jobject Runtime::GetMainThreadGroup() const {
707 CHECK(main_thread_group_ != NULL || IsCompiler());
708 return main_thread_group_;
709}
710
711jobject Runtime::GetSystemThreadGroup() const {
712 CHECK(system_thread_group_ != NULL || IsCompiler());
713 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700714}
715
Brian Carlstromce888532013-10-10 00:32:58 -0700716jobject Runtime::GetSystemClassLoader() const {
717 CHECK(system_class_loader_ != NULL || IsCompiler());
718 return system_class_loader_;
719}
720
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700721void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
722#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800723 // Register Throwable first so that registration of other native methods can throw exceptions
724 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700725 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700726 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700727 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700728 REGISTER(register_dalvik_system_VMStack);
Narayan Kamath8b2c8b92014-03-31 16:44:54 +0100729 REGISTER(register_dalvik_system_ZygoteHooks);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700730 REGISTER(register_java_lang_Class);
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700731 REGISTER(register_java_lang_DexCache);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700732 REGISTER(register_java_lang_Object);
733 REGISTER(register_java_lang_Runtime);
734 REGISTER(register_java_lang_String);
735 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700736 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700737 REGISTER(register_java_lang_VMClassLoader);
Mathieu Chartier78f7b4c2014-05-06 10:57:27 -0700738 REGISTER(register_java_lang_ref_Reference);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700739 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700740 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700741 REGISTER(register_java_lang_reflect_Field);
742 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400743 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700744 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700745 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700746 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700747 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700748#undef REGISTER
749}
750
Elliott Hughesc967f782012-04-16 10:23:15 -0700751void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700752 GetClassLinker()->DumpForSigQuit(os);
753 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700754 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700755 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700756 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700757
Elliott Hughesc967f782012-04-16 10:23:15 -0700758 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -0800759 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700760}
761
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800762void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700763 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800764 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
765 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
766 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700767 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
768 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800769 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
770 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
771 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
772 }
773}
774
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700775void Runtime::SetStatsEnabled(bool new_state) {
776 if (new_state == true) {
777 GetStats()->Clear(~0);
778 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
779 Thread::Current()->GetStats()->Clear(~0);
Ian Rogersfa824272013-11-05 16:12:57 -0800780 GetInstrumentation()->InstrumentQuickAllocEntryPoints();
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -0700781 } else {
Ian Rogersfa824272013-11-05 16:12:57 -0800782 GetInstrumentation()->UninstrumentQuickAllocEntryPoints();
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700783 }
784 stats_enabled_ = new_state;
785}
786
787void Runtime::ResetStats(int kinds) {
788 GetStats()->Clear(kinds & 0xffff);
789 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
790 Thread::Current()->GetStats()->Clear(kinds >> 16);
791}
792
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700793int32_t Runtime::GetStat(int kind) {
794 RuntimeStats* stats;
795 if (kind < (1<<16)) {
796 stats = GetStats();
797 } else {
798 stats = Thread::Current()->GetStats();
799 kind >>= 16;
800 }
801 switch (kind) {
802 case KIND_ALLOCATED_OBJECTS:
803 return stats->allocated_objects;
804 case KIND_ALLOCATED_BYTES:
805 return stats->allocated_bytes;
806 case KIND_FREED_OBJECTS:
807 return stats->freed_objects;
808 case KIND_FREED_BYTES:
809 return stats->freed_bytes;
810 case KIND_GC_INVOCATIONS:
811 return stats->gc_for_alloc_count;
812 case KIND_CLASS_INIT_COUNT:
813 return stats->class_init_count;
814 case KIND_CLASS_INIT_TIME:
815 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -0700816 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700817 case KIND_EXT_ALLOCATED_OBJECTS:
818 case KIND_EXT_ALLOCATED_BYTES:
819 case KIND_EXT_FREED_OBJECTS:
820 case KIND_EXT_FREED_BYTES:
821 return 0; // backward compatibility
822 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -0700823 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700824 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700825 }
826}
827
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700828void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -0700829 SignalSet signals;
830 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700831 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -0700832 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -0700833 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -0700834 signals.Add(SIGUSR1);
835 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700836}
837
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800838bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
839 bool create_peer) {
840 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -0700841 if (thread_name == NULL) {
842 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
843 }
Ian Rogers120f1c72012-09-28 17:17:10 -0700844 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700845}
846
Elliott Hughesd92bec42011-09-02 17:04:36 -0700847void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -0700848 Thread* self = Thread::Current();
849 if (self == NULL) {
850 LOG(FATAL) << "attempting to detach thread that is not attached";
851 }
Ian Rogers0399dde2012-06-06 17:09:28 -0700852 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -0700853 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
854 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700855 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -0700856}
857
Ian Rogersa436fde2013-08-27 23:34:06 -0700858 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const {
859 if (pre_allocated_OutOfMemoryError_ == NULL) {
860 LOG(ERROR) << "Failed to return pre-allocated OOME";
861 }
862 return pre_allocated_OutOfMemoryError_;
863}
864
Mathieu Chartier893263b2014-03-04 11:07:42 -0800865void Runtime::VisitConstantRoots(RootCallback* callback, void* arg) {
866 // Visit the classes held as static in mirror classes, these can be visited concurrently and only
Mathieu Chartier3b05e9b2014-03-25 09:29:43 -0700867 // need to be visited once per GC since they never change.
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800868 mirror::ArtField::VisitRoots(callback, arg);
869 mirror::ArtMethod::VisitRoots(callback, arg);
870 mirror::Class::VisitRoots(callback, arg);
871 mirror::StackTraceElement::VisitRoots(callback, arg);
872 mirror::String::VisitRoots(callback, arg);
873 mirror::Throwable::VisitRoots(callback, arg);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800874 // Visit all the primitive array types classes.
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800875 mirror::PrimitiveArray<uint8_t>::VisitRoots(callback, arg); // BooleanArray
876 mirror::PrimitiveArray<int8_t>::VisitRoots(callback, arg); // ByteArray
877 mirror::PrimitiveArray<uint16_t>::VisitRoots(callback, arg); // CharArray
878 mirror::PrimitiveArray<double>::VisitRoots(callback, arg); // DoubleArray
879 mirror::PrimitiveArray<float>::VisitRoots(callback, arg); // FloatArray
880 mirror::PrimitiveArray<int32_t>::VisitRoots(callback, arg); // IntArray
881 mirror::PrimitiveArray<int64_t>::VisitRoots(callback, arg); // LongArray
882 mirror::PrimitiveArray<int16_t>::VisitRoots(callback, arg); // ShortArray
Mathieu Chartier893263b2014-03-04 11:07:42 -0800883}
884
885void Runtime::VisitConcurrentRoots(RootCallback* callback, void* arg, VisitRootFlags flags) {
886 intern_table_->VisitRoots(callback, arg, flags);
887 class_linker_->VisitRoots(callback, arg, flags);
Mathieu Chartier3b05e9b2014-03-25 09:29:43 -0700888 Dbg::VisitRoots(callback, arg);
Mathieu Chartier893263b2014-03-04 11:07:42 -0800889 if ((flags & kVisitRootFlagNewRoots) == 0) {
890 // Guaranteed to have no new roots in the constant roots.
891 VisitConstantRoots(callback, arg);
892 }
893}
894
895void Runtime::VisitNonThreadRoots(RootCallback* callback, void* arg) {
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800896 java_vm_->VisitRoots(callback, arg);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700897 if (pre_allocated_OutOfMemoryError_ != nullptr) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800898 callback(reinterpret_cast<mirror::Object**>(&pre_allocated_OutOfMemoryError_), arg, 0,
899 kRootVMInternal);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700900 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr);
Elliott Hughes225f5a12012-06-11 11:23:48 -0700901 }
Mathieu Chartier815873e2014-02-13 18:02:13 -0800902 callback(reinterpret_cast<mirror::Object**>(&resolution_method_), arg, 0, kRootVMInternal);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700903 DCHECK(resolution_method_ != nullptr);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700904 if (HasImtConflictMethod()) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800905 callback(reinterpret_cast<mirror::Object**>(&imt_conflict_method_), arg, 0, kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700906 }
907 if (HasDefaultImt()) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800908 callback(reinterpret_cast<mirror::Object**>(&default_imt_), arg, 0, kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700909 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700910 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Mathieu Chartier590fee92013-09-13 13:46:47 -0700911 if (callee_save_methods_[i] != nullptr) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800912 callback(reinterpret_cast<mirror::Object**>(&callee_save_methods_[i]), arg, 0,
913 kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700914 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700915 }
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800916 {
Ian Rogers719d1a32014-03-06 12:13:39 -0800917 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800918 for (verifier::MethodVerifier* verifier : method_verifiers_) {
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800919 verifier->VisitRoots(callback, arg);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800920 }
921 }
Sebastien Hertzee1d79a2014-02-21 15:46:30 +0100922 if (preinitialization_transaction_ != nullptr) {
923 preinitialization_transaction_->VisitRoots(callback, arg);
Mathieu Chartier893263b2014-03-04 11:07:42 -0800924 }
Mathieu Chartier3b05e9b2014-03-25 09:29:43 -0700925 instrumentation_.VisitRoots(callback, arg);
Brian Carlstrome24fa612011-09-29 00:53:55 -0700926}
927
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800928void Runtime::VisitNonConcurrentRoots(RootCallback* callback, void* arg) {
929 thread_list_->VisitRoots(callback, arg);
930 VisitNonThreadRoots(callback, arg);
Mathieu Chartier858f1c52012-10-17 17:45:55 -0700931}
932
Mathieu Chartier893263b2014-03-04 11:07:42 -0800933void Runtime::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) {
934 VisitConcurrentRoots(callback, arg, flags);
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800935 VisitNonConcurrentRoots(callback, arg);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -0700936}
937
Jeff Hao88474b42013-10-23 16:24:40 -0700938mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) {
939 Thread* self = Thread::Current();
940 SirtRef<mirror::ObjectArray<mirror::ArtMethod> > imtable(self, cl->AllocArtMethodArray(self, 64));
941 mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod();
Mathieu Chartier590fee92013-09-13 13:46:47 -0700942 for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) {
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100943 imtable->Set<false>(i, imt_conflict_method);
Jeff Hao88474b42013-10-23 16:24:40 -0700944 }
945 return imtable.get();
946}
947
948mirror::ArtMethod* Runtime::CreateImtConflictMethod() {
Jeff Hao88474b42013-10-23 16:24:40 -0700949 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800950 Runtime* runtime = Runtime::Current();
951 ClassLinker* class_linker = runtime->GetClassLinker();
952 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700953 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogersef7d42f2014-01-06 12:55:46 -0800954 // TODO: use a special method for imt conflict method saves.
Jeff Hao88474b42013-10-23 16:24:40 -0700955 method->SetDexMethodIndex(DexFile::kDexNoIndex);
956 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800957 if (runtime->IsCompiler()) {
958 method->SetEntryPointFromPortableCompiledCode(nullptr);
959 method->SetEntryPointFromQuickCompiledCode(nullptr);
960 } else {
961 method->SetEntryPointFromPortableCompiledCode(GetPortableImtConflictTrampoline(class_linker));
962 method->SetEntryPointFromQuickCompiledCode(GetQuickImtConflictTrampoline(class_linker));
963 }
Jeff Hao88474b42013-10-23 16:24:40 -0700964 return method.get();
965}
966
Brian Carlstromea46f952013-07-30 01:26:50 -0700967mirror::ArtMethod* Runtime::CreateResolutionMethod() {
Ian Rogers50b35e22012-10-04 10:09:15 -0700968 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800969 Runtime* runtime = Runtime::Current();
970 ClassLinker* class_linker = runtime->GetClassLinker();
971 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700972 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers19846512012-02-24 11:42:47 -0800973 // TODO: use a special method for resolution method saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700974 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Hao58df3272013-04-22 15:28:53 -0700975 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800976 if (runtime->IsCompiler()) {
977 method->SetEntryPointFromPortableCompiledCode(nullptr);
978 method->SetEntryPointFromQuickCompiledCode(nullptr);
979 } else {
980 method->SetEntryPointFromPortableCompiledCode(GetPortableResolutionTrampoline(class_linker));
981 method->SetEntryPointFromQuickCompiledCode(GetQuickResolutionTrampoline(class_linker));
982 }
Ian Rogers19846512012-02-24 11:42:47 -0800983 return method.get();
984}
985
Brian Carlstromea46f952013-07-30 01:26:50 -0700986mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
Mathieu Chartier590fee92013-09-13 13:46:47 -0700987 CalleeSaveType type) {
Ian Rogers50b35e22012-10-04 10:09:15 -0700988 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800989 Runtime* runtime = Runtime::Current();
990 ClassLinker* class_linker = runtime->GetClassLinker();
991 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700992 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers6d4d9fc2011-11-30 16:24:48 -0800993 // TODO: use a special method for callee saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700994 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Ian Rogersef7d42f2014-01-06 12:55:46 -0800995 method->SetEntryPointFromPortableCompiledCode(nullptr);
996 method->SetEntryPointFromQuickCompiledCode(nullptr);
Brian Carlstromae826982011-11-09 01:33:42 -0800997 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700998 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
999 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1000 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1001 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001002 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1003 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001004 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1005 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1006 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1007 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1008 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1009 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1010 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1011 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1012 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1013 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1014 (1 << art::arm::S30) | (1 << art::arm::S31);
1015 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
Vladimir Marko81949632014-05-02 11:53:22 +01001016 size_t frame_size = RoundUp((POPCOUNT(core_spills) /* gprs */ +
1017 POPCOUNT(fp_spills) /* fprs */ +
Andreas Gampe242947d2014-04-03 13:31:32 -07001018 1 /* Method* */) * kArmPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001019 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001020 method->SetCoreSpillMask(core_spills);
1021 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001022 } else if (instruction_set == kMips) {
1023 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1024 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001025 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -07001026 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001027 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001028 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001029 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
Vladimir Marko81949632014-05-02 11:53:22 +01001030 size_t frame_size = RoundUp((POPCOUNT(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001031 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
Andreas Gampe242947d2014-04-03 13:31:32 -07001032 kMipsPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001033 method->SetFrameSizeInBytes(frame_size);
1034 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001035 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001036 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001037 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1038 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1039 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1040 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
Vladimir Marko81949632014-05-02 11:53:22 +01001041 size_t frame_size = RoundUp((POPCOUNT(core_spills) /* gprs */ +
Andreas Gampe242947d2014-04-03 13:31:32 -07001042 1 /* Method* */) * kX86PointerSize, kStackAlignment);
Ian Rogers7caad772012-03-30 01:07:54 -07001043 method->SetFrameSizeInBytes(frame_size);
1044 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001045 method->SetFpSpillMask(0);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001046 } else if (instruction_set == kX86_64) {
1047 uint32_t ref_spills =
Ian Rogers0177e532014-02-11 16:30:46 -08001048 (1 << art::x86_64::RBX) | (1 << art::x86_64::RBP) | (1 << art::x86_64::R12) |
1049 (1 << art::x86_64::R13) | (1 << art::x86_64::R14) | (1 << art::x86_64::R15);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001050 uint32_t arg_spills =
Ian Rogers0177e532014-02-11 16:30:46 -08001051 (1 << art::x86_64::RSI) | (1 << art::x86_64::RDX) | (1 << art::x86_64::RCX) |
1052 (1 << art::x86_64::R8) | (1 << art::x86_64::R9);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001053 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001054 (1 << art::x86_64::kNumberOfCpuRegisters); // fake return address callee save
Ian Rogers936b37f2014-02-14 00:52:24 -08001055 uint32_t fp_arg_spills =
1056 (1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) | (1 << art::x86_64::XMM2) |
1057 (1 << art::x86_64::XMM3) | (1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) |
1058 (1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7);
1059 uint32_t fp_spills = (type == kRefsAndArgs ? fp_arg_spills : 0);
Vladimir Marko81949632014-05-02 11:53:22 +01001060 size_t frame_size = RoundUp((POPCOUNT(core_spills) /* gprs */ +
1061 POPCOUNT(fp_spills) /* fprs */ +
Andreas Gampe242947d2014-04-03 13:31:32 -07001062 1 /* Method* */) * kX86_64PointerSize, kStackAlignment);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001063 method->SetFrameSizeInBytes(frame_size);
1064 method->SetCoreSpillMask(core_spills);
Ian Rogers936b37f2014-02-14 00:52:24 -08001065 method->SetFpSpillMask(fp_spills);
Stuart Monteithb95a5342014-03-12 13:32:32 +00001066 } else if (instruction_set == kArm64) {
1067 // Callee saved registers
1068 uint32_t ref_spills = (1 << art::arm64::X19) | (1 << art::arm64::X20) | (1 << art::arm64::X21) |
1069 (1 << art::arm64::X22) | (1 << art::arm64::X23) | (1 << art::arm64::X24) |
1070 (1 << art::arm64::X25) | (1 << art::arm64::X26) | (1 << art::arm64::X27) |
1071 (1 << art::arm64::X28);
1072 // X0 is the method pointer. Not saved.
1073 uint32_t arg_spills = (1 << art::arm64::X1) | (1 << art::arm64::X2) | (1 << art::arm64::X3) |
1074 (1 << art::arm64::X4) | (1 << art::arm64::X5) | (1 << art::arm64::X6) |
1075 (1 << art::arm64::X7);
1076 // TODO This is conservative. Only ALL should include the thread register.
1077 // The thread register is not preserved by the aapcs64.
1078 // LR is always saved.
1079 uint32_t all_spills = 0; // (1 << art::arm64::LR);
1080 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1081 (type == kSaveAll ? all_spills : 0) | (1 << art::arm64::FP)
1082 | (1 << art::arm64::X18) | (1 << art::arm64::LR);
1083
1084 // Save callee-saved floating point registers. Rest are scratch/parameters.
1085 uint32_t fp_arg_spills = (1 << art::arm64::D0) | (1 << art::arm64::D1) | (1 << art::arm64::D2) |
1086 (1 << art::arm64::D3) | (1 << art::arm64::D4) | (1 << art::arm64::D5) |
1087 (1 << art::arm64::D6) | (1 << art::arm64::D7);
1088 uint32_t fp_ref_spills = (1 << art::arm64::D8) | (1 << art::arm64::D9) | (1 << art::arm64::D10) |
1089 (1 << art::arm64::D11) | (1 << art::arm64::D12) | (1 << art::arm64::D13) |
1090 (1 << art::arm64::D14) | (1 << art::arm64::D15);
1091 uint32_t fp_all_spills = fp_arg_spills |
1092 (1 << art::arm64::D16) | (1 << art::arm64::D17) | (1 << art::arm64::D18) |
1093 (1 << art::arm64::D19) | (1 << art::arm64::D20) | (1 << art::arm64::D21) |
1094 (1 << art::arm64::D22) | (1 << art::arm64::D23) | (1 << art::arm64::D24) |
1095 (1 << art::arm64::D25) | (1 << art::arm64::D26) | (1 << art::arm64::D27) |
1096 (1 << art::arm64::D28) | (1 << art::arm64::D29) | (1 << art::arm64::D30) |
1097 (1 << art::arm64::D31);
1098 uint32_t fp_spills = fp_ref_spills | (type == kRefsAndArgs ? fp_arg_spills: 0)
1099 | (type == kSaveAll ? fp_all_spills : 0);
Vladimir Marko81949632014-05-02 11:53:22 +01001100 size_t frame_size = RoundUp((POPCOUNT(core_spills) /* gprs */ +
1101 POPCOUNT(fp_spills) /* fprs */ +
Andreas Gampe242947d2014-04-03 13:31:32 -07001102 1 /* Method* */) * kArm64PointerSize, kStackAlignment);
Stuart Monteithb95a5342014-03-12 13:32:32 +00001103 method->SetFrameSizeInBytes(frame_size);
1104 method->SetCoreSpillMask(core_spills);
1105 method->SetFpSpillMask(fp_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001106 } else {
Ian Rogersef7d42f2014-01-06 12:55:46 -08001107 UNIMPLEMENTED(FATAL) << instruction_set;
Ian Rogersff1ed472011-09-20 13:46:24 -07001108 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001109 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001110}
1111
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001112void Runtime::DisallowNewSystemWeaks() {
1113 monitor_list_->DisallowNewMonitors();
1114 intern_table_->DisallowNewInterns();
1115 java_vm_->DisallowNewWeakGlobals();
Mathieu Chartier412c7fc2014-02-07 12:18:39 -08001116 Dbg::DisallowNewObjectRegistryObjects();
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001117}
1118
1119void Runtime::AllowNewSystemWeaks() {
1120 monitor_list_->AllowNewMonitors();
1121 intern_table_->AllowNewInterns();
1122 java_vm_->AllowNewWeakGlobals();
Mathieu Chartier412c7fc2014-02-07 12:18:39 -08001123 Dbg::AllowNewObjectRegistryObjects();
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001124}
1125
Brian Carlstromea46f952013-07-30 01:26:50 -07001126void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001127 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001128 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001129}
1130
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001131const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001132 if (class_loader == NULL) {
1133 return GetClassLinker()->GetBootClassPath();
1134 }
1135 CHECK(UseCompileTimeClassPath());
1136 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1137 CHECK(it != compile_time_class_paths_.end());
1138 return it->second;
1139}
1140
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001141void Runtime::SetCompileTimeClassPath(jobject class_loader,
1142 std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001143 CHECK(!IsStarted());
1144 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001145 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001146}
1147
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001148void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) {
1149 DCHECK(verifier != nullptr);
Ian Rogers719d1a32014-03-06 12:13:39 -08001150 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001151 method_verifiers_.insert(verifier);
1152}
1153
1154void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) {
1155 DCHECK(verifier != nullptr);
Ian Rogers719d1a32014-03-06 12:13:39 -08001156 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001157 auto it = method_verifiers_.find(verifier);
1158 CHECK(it != method_verifiers_.end());
1159 method_verifiers_.erase(it);
1160}
1161
Calin Juravle16590062014-04-07 18:07:43 +03001162void Runtime::StartProfiler(const char* appDir, const char* procName) {
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001163 BackgroundMethodSamplingProfiler::Start(profile_period_s_, profile_duration_s_, appDir,
Calin Juravle16590062014-04-07 18:07:43 +03001164 procName, profile_interval_us_, profile_backoff_coefficient_, profile_start_immediately_);
Dave Allison0aded082013-11-07 13:15:11 -08001165}
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001166
1167// Transaction support.
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001168void Runtime::EnterTransactionMode(Transaction* transaction) {
1169 DCHECK(IsCompiler());
1170 DCHECK(transaction != nullptr);
1171 DCHECK(!IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001172 preinitialization_transaction_ = transaction;
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001173}
1174
1175void Runtime::ExitTransactionMode() {
1176 DCHECK(IsCompiler());
1177 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001178 preinitialization_transaction_ = nullptr;
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001179}
1180
1181void Runtime::RecordWriteField32(mirror::Object* obj, MemberOffset field_offset,
1182 uint32_t value, bool is_volatile) const {
1183 DCHECK(IsCompiler());
1184 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001185 preinitialization_transaction_->RecordWriteField32(obj, field_offset, value, is_volatile);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001186}
1187
1188void Runtime::RecordWriteField64(mirror::Object* obj, MemberOffset field_offset,
1189 uint64_t value, bool is_volatile) const {
1190 DCHECK(IsCompiler());
1191 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001192 preinitialization_transaction_->RecordWriteField64(obj, field_offset, value, is_volatile);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001193}
1194
1195void Runtime::RecordWriteFieldReference(mirror::Object* obj, MemberOffset field_offset,
1196 mirror::Object* value, bool is_volatile) const {
1197 DCHECK(IsCompiler());
1198 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001199 preinitialization_transaction_->RecordWriteFieldReference(obj, field_offset, value, is_volatile);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001200}
1201
1202void Runtime::RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const {
1203 DCHECK(IsCompiler());
1204 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001205 preinitialization_transaction_->RecordWriteArray(array, index, value);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001206}
1207
1208void Runtime::RecordStrongStringInsertion(mirror::String* s, uint32_t hash_code) const {
1209 DCHECK(IsCompiler());
1210 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001211 preinitialization_transaction_->RecordStrongStringInsertion(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001212}
1213
1214void Runtime::RecordWeakStringInsertion(mirror::String* s, uint32_t hash_code) const {
1215 DCHECK(IsCompiler());
1216 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001217 preinitialization_transaction_->RecordWeakStringInsertion(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001218}
1219
1220void Runtime::RecordStrongStringRemoval(mirror::String* s, uint32_t hash_code) const {
1221 DCHECK(IsCompiler());
1222 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001223 preinitialization_transaction_->RecordStrongStringRemoval(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001224}
1225
1226void Runtime::RecordWeakStringRemoval(mirror::String* s, uint32_t hash_code) const {
1227 DCHECK(IsCompiler());
1228 DCHECK(IsActiveTransaction());
Sebastien Hertzee1d79a2014-02-21 15:46:30 +01001229 preinitialization_transaction_->RecordWeakStringRemoval(s, hash_code);
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001230}
Mathieu Chartier15d34022014-02-26 17:16:38 -08001231
1232void Runtime::SetFaultMessage(const std::string& message) {
1233 MutexLock mu(Thread::Current(), fault_message_lock_);
1234 fault_message_ = message;
1235}
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001236
Ian Rogers8afeb852014-04-02 14:55:49 -07001237void Runtime::AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::string>* argv)
1238 const {
Ian Rogers9bc54402014-04-17 16:40:01 -07001239 if (GetInstrumentation()->InterpretOnly()) {
1240 argv->push_back("--compiler-filter=interpret-only");
1241 }
1242
Ian Rogers8afeb852014-04-02 14:55:49 -07001243 argv->push_back("--runtime-arg");
1244 std::string checkstr = "-implicit-checks";
1245
1246 int nchecks = 0;
1247 char checksep = ':';
1248
1249 if (!ExplicitNullChecks()) {
1250 checkstr += checksep;
1251 checksep = ',';
1252 checkstr += "null";
1253 ++nchecks;
1254 }
1255 if (!ExplicitSuspendChecks()) {
1256 checkstr += checksep;
1257 checksep = ',';
1258 checkstr += "suspend";
1259 ++nchecks;
1260 }
1261
1262 if (!ExplicitStackOverflowChecks()) {
1263 checkstr += checksep;
1264 checksep = ',';
1265 checkstr += "stack";
1266 ++nchecks;
1267 }
1268
1269 if (nchecks == 0) {
1270 checkstr += ":none";
1271 }
1272 argv->push_back(checkstr);
1273
1274 // Make the dex2oat instruction set match that of the launching runtime. If we have multiple
1275 // architecture support, dex2oat may be compiled as a different instruction-set than that
1276 // currently being executed.
1277#if defined(__arm__)
1278 argv->push_back("--instruction-set=arm");
1279#elif defined(__aarch64__)
1280 argv->push_back("--instruction-set=arm64");
1281#elif defined(__i386__)
1282 argv->push_back("--instruction-set=x86");
1283#elif defined(__x86_64__)
1284 argv->push_back("--instruction-set=x86_64");
1285#elif defined(__mips__)
1286 argv->push_back("--instruction-set=mips");
1287#endif
1288
1289 std::string features("--instruction-set-features=");
1290 features += GetDefaultInstructionSetFeatures();
1291 argv->push_back(features);
1292}
1293
Dave Allison39c3bfb2014-01-28 18:33:52 -08001294void Runtime::UpdateProfilerState(int state) {
Brian Carlstrom4d466a82014-05-08 19:05:29 -07001295 VLOG(profiler) << "Profiler state updated to " << state;
Dave Allison39c3bfb2014-01-28 18:33:52 -08001296}
Carl Shapiro1fb86202011-06-27 17:43:13 -07001297} // namespace art