blob: 51edc85b104074b4dca7c7ac26019406b366b47f [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>
Brian Carlstromdbf05b72011-12-15 00:55:24 -080025
Elliott Hughesffe67362011-07-17 12:09:27 -070026#include <cstdio>
27#include <cstdlib>
Brian Carlstrom8a436592011-08-15 21:27:23 -070028#include <limits>
Carl Shapiro2ed144c2011-07-26 16:52:08 -070029#include <vector>
Dave Allison39c3bfb2014-01-28 18:33:52 -080030#include <fcntl.h>
Elliott Hughesffe67362011-07-17 12:09:27 -070031
Ian Rogers166db042013-07-26 12:05:57 -070032#include "arch/arm/registers_arm.h"
33#include "arch/mips/registers_mips.h"
34#include "arch/x86/registers_x86.h"
Ian Rogersef7d42f2014-01-06 12:55:46 -080035#include "arch/x86_64/registers_x86_64.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080036#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070037#include "class_linker.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070038#include "debugger.h"
Ian Rogers1d54e732013-05-02 21:10:01 -070039#include "gc/accounting/card_table-inl.h"
40#include "gc/heap.h"
41#include "gc/space/space.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070042#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080043#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070044#include "intern_table.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070045#include "jni_internal.h"
Brian Carlstromea46f952013-07-30 01:26:50 -070046#include "mirror/art_field-inl.h"
47#include "mirror/art_method-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080048#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080049#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080050#include "mirror/class_loader.h"
Mathieu Chartierc528dba2013-11-26 12:00:11 -080051#include "mirror/stack_trace_element.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080052#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070053#include "monitor.h"
Brian Carlstrom491ca9e2014-03-02 18:24:38 -080054#include "parsed_options.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070055#include "oat_file.h"
Ian Rogers53b8b092014-03-13 23:45:53 -070056#include "reflection.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070057#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070058#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070059#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070060#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070061#include "sirt_ref.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070062#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070063#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070064#include "trace.h"
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +010065#include "transaction.h"
Dave Allison0aded082013-11-07 13:15:11 -080066#include "profiler.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070067#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070068#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070069#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070070
Brian Carlstrom7934ac22013-07-26 10:54:15 -070071#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070072
Dave Allison39c3bfb2014-01-28 18:33:52 -080073#ifdef HAVE_ANDROID_OS
74#include "cutils/properties.h"
75#endif
76
Carl Shapiro1fb86202011-06-27 17:43:13 -070077namespace art {
78
Carl Shapiro2ed144c2011-07-26 16:52:08 -070079Runtime* Runtime::instance_ = NULL;
80
Elliott Hughesdcc24742011-09-07 14:02:44 -070081Runtime::Runtime()
Vladimir Marko2b5eaa22013-12-13 13:59:30 +000082 : compiler_callbacks_(nullptr),
Elliott Hughesd9c67be2012-02-02 19:54:06 -080083 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070084 is_concurrent_gc_enabled_(true),
Anwar Ghuloum87183592013-08-14 12:12:19 -070085 is_explicit_gc_disabled_(false),
Elliott Hughes6cf23882012-06-15 15:42:07 -070086 default_stack_size_(0),
Ian Rogersef7d42f2014-01-06 12:55:46 -080087 heap_(nullptr),
Ian Rogersd9c4fc92013-10-01 19:45:43 -070088 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation),
Ian Rogersef7d42f2014-01-06 12:55:46 -080089 monitor_list_(nullptr),
90 monitor_pool_(nullptr),
91 thread_list_(nullptr),
92 intern_table_(nullptr),
93 class_linker_(nullptr),
94 signal_catcher_(nullptr),
95 java_vm_(nullptr),
96 pre_allocated_OutOfMemoryError_(nullptr),
97 resolution_method_(nullptr),
98 imt_conflict_method_(nullptr),
99 default_imt_(nullptr),
Mathieu Chartier15d34022014-02-26 17:16:38 -0800100 fault_message_lock_("Fault message lock"),
101 fault_message_(""),
Ian Rogers719d1a32014-03-06 12:13:39 -0800102 method_verifier_lock_("Method verifiers lock"),
Ian Rogers120f1c72012-09-28 17:17:10 -0700103 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -0700104 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -0800105 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -0700106 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -0700107 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700108 finished_starting_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800109 vfprintf_(nullptr),
110 exit_(nullptr),
111 abort_(nullptr),
jeffhao2692b572011-12-16 15:42:28 -0800112 stats_enabled_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800113 profile_(false),
114 profile_period_s_(0),
115 profile_duration_s_(0),
116 profile_interval_us_(0),
117 profile_backoff_coefficient_(0),
118 method_trace_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -0700119 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -0800120 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700121 use_compile_time_class_path_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800122 main_thread_group_(nullptr),
123 system_thread_group_(nullptr),
124 system_class_loader_(nullptr),
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100125 dump_gc_performance_on_shutdown_(false),
Dave Allisonb373e092014-02-20 16:06:36 -0800126 preinitialization_transaction(nullptr),
127 null_pointer_handler_(nullptr),
128 suspend_handler_(nullptr),
129 stack_overflow_handler_(nullptr) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700130 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800131 callee_save_methods_[i] = nullptr;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700132 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700133}
134
Carl Shapiro61e019d2011-07-14 16:53:09 -0700135Runtime::~Runtime() {
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800136 if (dump_gc_performance_on_shutdown_) {
137 // This can't be called from the Heap destructor below because it
138 // could call RosAlloc::InspectAll() which needs the thread_list
139 // to be still alive.
140 heap_->DumpGcPerformanceInfo(LOG(INFO));
141 }
142
Ian Rogers120f1c72012-09-28 17:17:10 -0700143 Thread* self = Thread::Current();
144 {
145 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
146 shutting_down_started_ = true;
147 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700148 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700149 }
150 shutting_down_ = true;
151 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800152 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700153
Mathieu Chartiera6399032012-06-11 18:49:50 -0700154 // Make sure to let the GC complete if it is running.
Mathieu Chartier590fee92013-09-13 13:46:47 -0700155 heap_->WaitForGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800156 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700157
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700158 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700159 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700160 delete signal_catcher_;
161
Elliott Hughes038a8062011-09-18 14:12:41 -0700162 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700163 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700164 delete monitor_list_;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800165 delete monitor_pool_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700166 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800167 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700168 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700169 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700170 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700171 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200172 verifier::MethodVerifier::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700173 // TODO: acquire a static mutex on Runtime to avoid racing.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800174 CHECK(instance_ == nullptr || instance_ == this);
175 instance_ = nullptr;
Dave Allisonb373e092014-02-20 16:06:36 -0800176
177 delete null_pointer_handler_;
178 delete suspend_handler_;
179 delete stack_overflow_handler_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700180}
181
Elliott Hughese0918552011-10-28 17:18:29 -0700182struct AbortState {
183 void Dump(std::ostream& os) {
Ian Rogersf08e4732013-04-09 09:45:49 -0700184 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700185 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
186 return;
187 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700188 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700189 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800190 if (Runtime::Current() == NULL) {
191 os << "(Runtime does not yet exist!)\n";
192 return;
193 }
Elliott Hughese0918552011-10-28 17:18:29 -0700194 Thread* self = Thread::Current();
195 if (self == NULL) {
196 os << "(Aborting thread was not attached to runtime!)\n";
197 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700198 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
199 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
200 // The code below should be made robust to this.
201 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700202 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800203 self->Dump(os);
204 if (self->IsExceptionPending()) {
Ian Rogers62d6c772013-02-27 08:32:07 -0800205 ThrowLocation throw_location;
206 mirror::Throwable* exception = self->GetException(&throw_location);
207 os << "Pending exception " << PrettyTypeOf(exception)
Ian Rogersbc939662013-08-15 10:26:54 -0700208 << " thrown by '" << throw_location.Dump() << "'\n"
Ian Rogers62d6c772013-02-27 08:32:07 -0800209 << exception->Dump();
Elliott Hughes899e7892012-01-24 14:57:32 -0800210 }
Elliott Hughese0918552011-10-28 17:18:29 -0700211 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700212 DumpAllThreads(os, self);
213 }
214
215 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
216 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
217 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700218 if (!tll_already_held || !ml_already_held) {
219 os << "Dumping all threads without appropriate locks held:"
220 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700221 << (!ml_already_held ? " mutator lock" : "")
222 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700223 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700224 os << "All threads:\n";
225 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700226 }
227};
228
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700229void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700230 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800231
Elliott Hughes131aef82012-01-27 11:53:35 -0800232 // Ensure that we don't have multiple threads trying to abort at once,
233 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700234 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800235
Elliott Hughesffe67362011-07-17 12:09:27 -0700236 // Get any pending output out of the way.
237 fflush(NULL);
238
239 // Many people have difficulty distinguish aborts from crashes,
240 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700241 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800242 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700243
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700244 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700245 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700246 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700247 Runtime::Current()->abort_();
248 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700249 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700250 }
251
Elliott Hughesdd623db2013-06-11 11:20:23 -0700252#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700253 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
254 // which POSIX defines in terms of raise(3), which POSIX defines in terms
255 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
256 // libpthread, which means the stacks we dump would be useless. Calling
257 // tgkill(2) directly avoids that.
258 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700259 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
260 // 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 -0800261 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700262#else
263 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700264#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700265 // notreached
266}
267
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700268bool Runtime::PreZygoteFork() {
269 heap_->PreZygoteFork();
270 return true;
271}
272
Elliott Hughesbf86d042011-08-31 17:53:14 -0700273void Runtime::CallExitHook(jint status) {
274 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700275 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700276 exit_(status);
277 LOG(WARNING) << "Exit hook returned instead of exiting!";
278 }
279}
280
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800281void Runtime::SweepSystemWeaks(IsMarkedCallback* visitor, void* arg) {
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700282 GetInternTable()->SweepInternTableWeaks(visitor, arg);
283 GetMonitorList()->SweepMonitorList(visitor, arg);
284 GetJavaVM()->SweepJniWeakGlobals(visitor, arg);
Mathieu Chartier412c7fc2014-02-07 12:18:39 -0800285 Dbg::UpdateObjectPointers(visitor, arg);
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700286}
287
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700288bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700289 // TODO: acquire a static mutex on Runtime to avoid racing.
290 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700291 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700292 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700293 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700294 instance_ = new Runtime;
295 if (!instance_->Init(options, ignore_unrecognized)) {
296 delete instance_;
297 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700298 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700299 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700300 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700301}
Elliott Hughes0af55432011-08-17 18:37:28 -0700302
Brian Carlstromce888532013-10-10 00:32:58 -0700303jobject CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800304 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromce888532013-10-10 00:32:58 -0700305 return NULL;
Brian Carlstromaded5f72011-10-07 17:15:04 -0700306 }
307
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700308 ScopedObjectAccess soa(Thread::Current());
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800309 ClassLinker* cl = Runtime::Current()->GetClassLinker();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700310
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800311 SirtRef<mirror::Class> class_loader_class(
312 soa.Self(), soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader));
313 CHECK(cl->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700314
Brian Carlstromea46f952013-07-30 01:26:50 -0700315 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800316 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700317 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700318
Ian Rogers53b8b092014-03-13 23:45:53 -0700319 JValue result = InvokeWithJValues(soa, nullptr, soa.EncodeMethod(getSystemClassLoader), nullptr);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800320 SirtRef<mirror::ClassLoader> class_loader(soa.Self(),
321 down_cast<mirror::ClassLoader*>(result.GetL()));
322 CHECK(class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700323 JNIEnv* env = soa.Self()->GetJniEnv();
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800324 ScopedLocalRef<jobject> system_class_loader(env,
325 soa.AddLocalReference<jobject>(class_loader.get()));
326 CHECK(system_class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700327
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800328 soa.Self()->SetClassLoaderOverride(class_loader.get());
Ian Rogers365c1022012-06-22 15:05:28 -0700329
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800330 SirtRef<mirror::Class> thread_class(
331 soa.Self(),
332 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread));
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800333 CHECK(cl->EnsureInitialized(thread_class, true, true));
Ian Rogers365c1022012-06-22 15:05:28 -0700334
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800335 mirror::ArtField* contextClassLoader =
336 thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500337 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700338
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100339 // We can't run in a transaction yet.
340 contextClassLoader->SetObject<false>(soa.Self()->GetPeer(), class_loader.get());
Brian Carlstromce888532013-10-10 00:32:58 -0700341
342 return env->NewGlobalRef(system_class_loader.get());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700343}
344
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700345bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800346 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700347
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700348 // Restore main thread state to kNative as expected by native code.
Ian Rogersa436fde2013-08-27 23:34:06 -0700349 Thread* self = Thread::Current();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700350 self->TransitionFromRunnableToSuspended(kNative);
351
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700352 started_ = true;
353
Brian Carlstromae826982011-11-09 01:33:42 -0800354 // InitNativeMethods needs to be after started_ so that the classes
355 // it touches will have methods linked to the oat file if necessary.
356 InitNativeMethods();
357
Ian Rogers365c1022012-06-22 15:05:28 -0700358 // Initialize well known thread group values that may be accessed threads while attaching.
359 InitThreadGroups(self);
360
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500361 Thread::FinishStartup();
362
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700363 if (is_zygote_) {
364 if (!InitZygote()) {
365 return false;
366 }
367 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700368 DidForkFromZygote();
369 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700370
Elliott Hughes85d15452011-09-16 17:33:01 -0700371 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700372
Brian Carlstromce888532013-10-10 00:32:58 -0700373 system_class_loader_ = CreateSystemClassLoader();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700374
Elliott Hughes225f5a12012-06-11 11:23:48 -0700375 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700376
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800377 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700378
379 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700380
Dave Allison0aded082013-11-07 13:15:11 -0800381 if (profile_) {
382 // User has asked for a profile using -Xprofile
Dave Allison39c3bfb2014-01-28 18:33:52 -0800383 // Create the profile file if it doesn't exist.
384 int fd = open(profile_output_filename_.c_str(), O_RDWR|O_CREAT|O_EXCL, 0660);
385 if (fd >= 0) {
386 close(fd);
387 }
388 StartProfiler(profile_output_filename_.c_str(), "", true);
Dave Allison0aded082013-11-07 13:15:11 -0800389 }
390
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700391 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700392}
393
Ian Rogers120f1c72012-09-28 17:17:10 -0700394void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
395 DCHECK_GT(threads_being_born_, 0U);
396 threads_being_born_--;
397 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700398 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700399 }
400}
401
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700402// Do zygote-mode-only initialization.
403bool Runtime::InitZygote() {
404 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700405 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700406
407 // See storage config details at http://source.android.com/tech/storage/
408 // Create private mount namespace shared by all children
409 if (unshare(CLONE_NEWNS) == -1) {
410 PLOG(WARNING) << "Failed to unshare()";
411 return false;
412 }
413
414 // Mark rootfs as being a slave so that changes from default
415 // namespace only flow into our children.
416 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
417 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
418 return false;
419 }
420
421 // Create a staging tmpfs that is shared by our children; they will
422 // bind mount storage into their respective private namespaces, which
423 // are isolated from each other.
424 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
425 if (target_base != NULL) {
426 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
Jeff Sharkey52cd1e82013-09-17 16:25:12 -0700427 "uid=0,gid=1028,mode=0751") == -1) {
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700428 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
429 return false;
430 }
431 }
432
433 return true;
434}
435
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700436void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700437 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700438
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700439 // Create the thread pool.
440 heap_->CreateThreadPool();
441
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700442 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700443
444 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
445 // this will pause the runtime, so we probably want this to come last.
446 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700447}
448
449void Runtime::StartSignalCatcher() {
450 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700451 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700452 }
453}
454
Mathieu Chartier590fee92013-09-13 13:46:47 -0700455bool Runtime::IsShuttingDown(Thread* self) {
456 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
457 return IsShuttingDownLocked();
458}
459
Elliott Hughes85d15452011-09-16 17:33:01 -0700460void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800461 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700462
Elliott Hughes719b3232011-09-25 17:42:19 -0700463 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700464
465 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700466 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700467
Elliott Hughes719b3232011-09-25 17:42:19 -0700468 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700469 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
470 WellKnownClasses::java_lang_Daemons_start);
471 if (env->ExceptionCheck()) {
472 env->ExceptionDescribe();
473 LOG(FATAL) << "Error starting java.lang.Daemons";
474 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700475
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800476 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700477}
478
Elliott Hughes0af55432011-08-17 18:37:28 -0700479bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700480 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700481
Elliott Hughes90a33692011-08-30 13:27:07 -0700482 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
483 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700484 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700485 return false;
486 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800487 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700488
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700489 QuasiAtomic::Startup();
490
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800491 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700492
Brian Carlstroma004aa92012-02-08 18:05:09 -0800493 boot_class_path_string_ = options->boot_class_path_string_;
494 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700495 properties_ = options->properties_;
496
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000497 compiler_callbacks_ = options->compiler_callbacks_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700498 is_zygote_ = options->is_zygote_;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700499 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700500
Elliott Hughes0af55432011-08-17 18:37:28 -0700501 vfprintf_ = options->hook_vfprintf_;
502 exit_ = options->hook_exit_;
503 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700504
Elliott Hughesbe759c62011-09-08 19:38:21 -0700505 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700506 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700507
Brian Carlstrom2ec65202014-03-03 15:16:37 -0800508 compiler_options_ = options->compiler_options_;
509 image_compiler_options_ = options->image_compiler_options_;
510
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700511 max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_;
512
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700513 monitor_list_ = new MonitorList;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800514 monitor_pool_ = MonitorPool::Create();
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800515 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700516 intern_table_ = new InternTable;
517
Logan Chiendd361c92012-04-10 23:40:37 +0800518
Ian Rogers62d6c772013-02-27 08:32:07 -0800519 if (options->interpreter_only_) {
520 GetInstrumentation()->ForceInterpretOnly();
521 }
522
Dave Allisonb373e092014-02-20 16:06:36 -0800523 if (options->explicit_checks_ != (ParsedOptions::kExplicitSuspendCheck |
524 ParsedOptions::kExplicitNullCheck |
525 ParsedOptions::kExplicitStackOverflowCheck)) {
526 // Initialize the fault manager.
527 fault_manager.Init();
528
529 // These need to be in a specific order. The null point check must be
530 // the last in the list.
531 if ((options->explicit_checks_ & ParsedOptions::kExplicitSuspendCheck) == 0) {
532 suspend_handler_ = new SuspensionHandler(&fault_manager);
533 }
534
535 if ((options->explicit_checks_ & ParsedOptions::kExplicitStackOverflowCheck) == 0) {
536 stack_overflow_handler_ = new StackOverflowHandler(&fault_manager);
537 }
538
539 if ((options->explicit_checks_ & ParsedOptions::kExplicitNullCheck) == 0) {
540 null_pointer_handler_ = new NullPointerHandler(&fault_manager);
541 }
542 }
543
Ian Rogers1d54e732013-05-02 21:10:01 -0700544 heap_ = new gc::Heap(options->heap_initial_size_,
545 options->heap_growth_limit_,
546 options->heap_min_free_,
547 options->heap_max_free_,
548 options->heap_target_utilization_,
549 options->heap_maximum_size_,
550 options->image_,
Mathieu Chartier0de9f732013-11-22 17:58:48 -0800551 options->collector_type_,
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800552 options->background_collector_type_,
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700553 options->parallel_gc_threads_,
554 options->conc_gc_threads_,
555 options->low_memory_mode_,
556 options->long_pause_log_threshold_,
557 options->long_gc_log_threshold_,
Mathieu Chartier692fafd2013-11-29 17:24:40 -0800558 options->ignore_max_footprint_,
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800559 options->use_tlab_,
560 options->verify_pre_gc_heap_,
Hiroshi Yamauchia4adbfd2014-02-04 18:12:17 -0800561 options->verify_post_gc_heap_,
562 options->verify_pre_gc_rosalloc_,
563 options->verify_post_gc_rosalloc_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700564
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800565 dump_gc_performance_on_shutdown_ = options->dump_gc_performance_on_shutdown_;
566
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700567 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700568 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700569
Elliott Hughesa0957642011-09-02 14:27:33 -0700570 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700571
Elliott Hughesbe759c62011-09-08 19:38:21 -0700572 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700573
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800574 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
575 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
576 // thread, we do not get a java peer.
577 Thread* self = Thread::Attach("main", false, NULL, false);
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700578 CHECK_EQ(self->thin_lock_thread_id_, ThreadList::kMainThreadId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700579 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700580
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700581 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700582 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700583
Ian Rogersa436fde2013-08-27 23:34:06 -0700584 // Now we're attached, we can take the heap locks and validate the heap.
Ian Rogers141d6222012-04-05 12:23:06 -0700585 GetHeap()->EnableObjectValidation();
586
Ian Rogers1d54e732013-05-02 21:10:01 -0700587 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700588 class_linker_ = new ClassLinker(intern_table_);
589 if (GetHeap()->HasImageSpace()) {
590 class_linker_->InitFromImage();
Brian Carlstroma004aa92012-02-08 18:05:09 -0800591 } else {
592 CHECK(options->boot_class_path_ != NULL);
593 CHECK_NE(options->boot_class_path_->size(), 0U);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700594 class_linker_->InitFromCompiler(*options->boot_class_path_);
Brian Carlstroma004aa92012-02-08 18:05:09 -0800595 }
596 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800597 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700598
jeffhaob5e81852012-03-12 11:15:45 -0700599 method_trace_ = options->method_trace_;
600 method_trace_file_ = options->method_trace_file_;
601 method_trace_file_size_ = options->method_trace_file_size_;
602
Dave Allison0aded082013-11-07 13:15:11 -0800603 // Extract the profile options.
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800604 // TODO: move into a Trace options struct?
Dave Allison0aded082013-11-07 13:15:11 -0800605 profile_period_s_ = options->profile_period_s_;
606 profile_duration_s_ = options->profile_duration_s_;
607 profile_interval_us_ = options->profile_interval_us_;
608 profile_backoff_coefficient_ = options->profile_backoff_coefficient_;
609 profile_ = options->profile_;
610 profile_output_filename_ = options->profile_output_filename_;
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800611 // TODO: move this to just be an Trace::Start argument
612 Trace::SetDefaultClockSource(options->profile_clock_source_);
Dave Allison0aded082013-11-07 13:15:11 -0800613
jeffhaob5e81852012-03-12 11:15:45 -0700614 if (options->method_trace_) {
Jeff Hao23009dc2013-08-22 15:36:42 -0700615 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0,
616 false, false, 0);
jeffhaob5e81852012-03-12 11:15:45 -0700617 }
618
Ian Rogersa436fde2013-08-27 23:34:06 -0700619 // Pre-allocate an OutOfMemoryError for the double-OOME case.
620 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800621 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; "
622 "no stack available");
Ian Rogersa436fde2013-08-27 23:34:06 -0700623 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
624 self->ClearException();
625
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800626 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700627 return true;
628}
629
Elliott Hughes038a8062011-09-18 14:12:41 -0700630void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800631 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700632 Thread* self = Thread::Current();
633 JNIEnv* env = self->GetJniEnv();
634
Elliott Hughes418d20f2011-09-22 14:00:39 -0700635 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700636 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700637
Elliott Hughes418d20f2011-09-22 14:00:39 -0700638 // First set up JniConstants, which is used by both the runtime's built-in native
639 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700640 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700641 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700642
Elliott Hughes418d20f2011-09-22 14:00:39 -0700643 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700644 RegisterRuntimeNativeMethods(env);
645
Elliott Hughes418d20f2011-09-22 14:00:39 -0700646 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
647 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
648 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700649 {
650 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
651 std::string reason;
652 self->TransitionFromSuspendedToRunnable();
Mathieu Chartier055d46c2014-02-06 11:22:17 -0800653 SirtRef<mirror::ClassLoader> class_loader(self, nullptr);
654 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, class_loader, &reason)) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700655 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
656 }
657 self->TransitionFromRunnableToSuspended(kNative);
658 }
Ian Rogersef28b142012-11-30 14:22:18 -0800659
660 // Initialize well known classes that may invoke runtime native methods.
661 WellKnownClasses::LateInit(env);
662
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800663 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700664}
665
Ian Rogers365c1022012-06-22 15:05:28 -0700666void Runtime::InitThreadGroups(Thread* self) {
667 JNIEnvExt* env = self->GetJniEnv();
668 ScopedJniEnvLocalRefState env_state(env);
669 main_thread_group_ =
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800670 env->NewGlobalRef(env->GetStaticObjectField(
671 WellKnownClasses::java_lang_ThreadGroup,
672 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700673 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700674 system_thread_group_ =
Brian Carlstrom491ca9e2014-03-02 18:24:38 -0800675 env->NewGlobalRef(env->GetStaticObjectField(
676 WellKnownClasses::java_lang_ThreadGroup,
677 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700678 CHECK(system_thread_group_ != NULL || IsCompiler());
679}
680
681jobject Runtime::GetMainThreadGroup() const {
682 CHECK(main_thread_group_ != NULL || IsCompiler());
683 return main_thread_group_;
684}
685
686jobject Runtime::GetSystemThreadGroup() const {
687 CHECK(system_thread_group_ != NULL || IsCompiler());
688 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700689}
690
Brian Carlstromce888532013-10-10 00:32:58 -0700691jobject Runtime::GetSystemClassLoader() const {
692 CHECK(system_class_loader_ != NULL || IsCompiler());
693 return system_class_loader_;
694}
695
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700696void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
697#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800698 // Register Throwable first so that registration of other native methods can throw exceptions
699 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700700 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700701 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700702 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700703 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -0700704 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700705 REGISTER(register_java_lang_Class);
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700706 REGISTER(register_java_lang_DexCache);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700707 REGISTER(register_java_lang_Object);
708 REGISTER(register_java_lang_Runtime);
709 REGISTER(register_java_lang_String);
710 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700711 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700712 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700713 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700714 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700715 REGISTER(register_java_lang_reflect_Field);
716 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400717 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700718 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700719 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700720 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700721 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700722#undef REGISTER
723}
724
Elliott Hughesc967f782012-04-16 10:23:15 -0700725void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700726 GetClassLinker()->DumpForSigQuit(os);
727 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700728 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700729 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700730 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700731
Elliott Hughesc967f782012-04-16 10:23:15 -0700732 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -0800733 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700734}
735
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800736void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700737 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800738 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
739 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
740 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700741 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
742 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800743 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
744 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
745 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
746 }
747}
748
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700749void Runtime::SetStatsEnabled(bool new_state) {
750 if (new_state == true) {
751 GetStats()->Clear(~0);
752 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
753 Thread::Current()->GetStats()->Clear(~0);
Ian Rogersfa824272013-11-05 16:12:57 -0800754 GetInstrumentation()->InstrumentQuickAllocEntryPoints();
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -0700755 } else {
Ian Rogersfa824272013-11-05 16:12:57 -0800756 GetInstrumentation()->UninstrumentQuickAllocEntryPoints();
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700757 }
758 stats_enabled_ = new_state;
759}
760
761void Runtime::ResetStats(int kinds) {
762 GetStats()->Clear(kinds & 0xffff);
763 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
764 Thread::Current()->GetStats()->Clear(kinds >> 16);
765}
766
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700767int32_t Runtime::GetStat(int kind) {
768 RuntimeStats* stats;
769 if (kind < (1<<16)) {
770 stats = GetStats();
771 } else {
772 stats = Thread::Current()->GetStats();
773 kind >>= 16;
774 }
775 switch (kind) {
776 case KIND_ALLOCATED_OBJECTS:
777 return stats->allocated_objects;
778 case KIND_ALLOCATED_BYTES:
779 return stats->allocated_bytes;
780 case KIND_FREED_OBJECTS:
781 return stats->freed_objects;
782 case KIND_FREED_BYTES:
783 return stats->freed_bytes;
784 case KIND_GC_INVOCATIONS:
785 return stats->gc_for_alloc_count;
786 case KIND_CLASS_INIT_COUNT:
787 return stats->class_init_count;
788 case KIND_CLASS_INIT_TIME:
789 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -0700790 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700791 case KIND_EXT_ALLOCATED_OBJECTS:
792 case KIND_EXT_ALLOCATED_BYTES:
793 case KIND_EXT_FREED_OBJECTS:
794 case KIND_EXT_FREED_BYTES:
795 return 0; // backward compatibility
796 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -0700797 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700798 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700799 }
800}
801
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700802void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -0700803 SignalSet signals;
804 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700805 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -0700806 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -0700807 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -0700808 signals.Add(SIGUSR1);
809 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700810}
811
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800812bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
813 bool create_peer) {
814 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -0700815 if (thread_name == NULL) {
816 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
817 }
Ian Rogers120f1c72012-09-28 17:17:10 -0700818 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700819}
820
Elliott Hughesd92bec42011-09-02 17:04:36 -0700821void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -0700822 Thread* self = Thread::Current();
823 if (self == NULL) {
824 LOG(FATAL) << "attempting to detach thread that is not attached";
825 }
Ian Rogers0399dde2012-06-06 17:09:28 -0700826 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -0700827 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
828 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700829 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -0700830}
831
Ian Rogersa436fde2013-08-27 23:34:06 -0700832 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const {
833 if (pre_allocated_OutOfMemoryError_ == NULL) {
834 LOG(ERROR) << "Failed to return pre-allocated OOME";
835 }
836 return pre_allocated_OutOfMemoryError_;
837}
838
Mathieu Chartier893263b2014-03-04 11:07:42 -0800839void Runtime::VisitConstantRoots(RootCallback* callback, void* arg) {
840 // Visit the classes held as static in mirror classes, these can be visited concurrently and only
841 // need to be visited once since they never change.
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800842 mirror::ArtField::VisitRoots(callback, arg);
843 mirror::ArtMethod::VisitRoots(callback, arg);
844 mirror::Class::VisitRoots(callback, arg);
845 mirror::StackTraceElement::VisitRoots(callback, arg);
846 mirror::String::VisitRoots(callback, arg);
847 mirror::Throwable::VisitRoots(callback, arg);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800848 // Visit all the primitive array types classes.
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800849 mirror::PrimitiveArray<uint8_t>::VisitRoots(callback, arg); // BooleanArray
850 mirror::PrimitiveArray<int8_t>::VisitRoots(callback, arg); // ByteArray
851 mirror::PrimitiveArray<uint16_t>::VisitRoots(callback, arg); // CharArray
852 mirror::PrimitiveArray<double>::VisitRoots(callback, arg); // DoubleArray
853 mirror::PrimitiveArray<float>::VisitRoots(callback, arg); // FloatArray
854 mirror::PrimitiveArray<int32_t>::VisitRoots(callback, arg); // IntArray
855 mirror::PrimitiveArray<int64_t>::VisitRoots(callback, arg); // LongArray
856 mirror::PrimitiveArray<int16_t>::VisitRoots(callback, arg); // ShortArray
Mathieu Chartier893263b2014-03-04 11:07:42 -0800857}
858
859void Runtime::VisitConcurrentRoots(RootCallback* callback, void* arg, VisitRootFlags flags) {
860 intern_table_->VisitRoots(callback, arg, flags);
861 class_linker_->VisitRoots(callback, arg, flags);
862 if ((flags & kVisitRootFlagNewRoots) == 0) {
863 // Guaranteed to have no new roots in the constant roots.
864 VisitConstantRoots(callback, arg);
865 }
866}
867
868void Runtime::VisitNonThreadRoots(RootCallback* callback, void* arg) {
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800869 java_vm_->VisitRoots(callback, arg);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700870 if (pre_allocated_OutOfMemoryError_ != nullptr) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800871 callback(reinterpret_cast<mirror::Object**>(&pre_allocated_OutOfMemoryError_), arg, 0,
872 kRootVMInternal);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700873 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr);
Elliott Hughes225f5a12012-06-11 11:23:48 -0700874 }
Mathieu Chartier815873e2014-02-13 18:02:13 -0800875 callback(reinterpret_cast<mirror::Object**>(&resolution_method_), arg, 0, kRootVMInternal);
Mathieu Chartier423d2a32013-09-12 17:33:56 -0700876 DCHECK(resolution_method_ != nullptr);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700877 if (HasImtConflictMethod()) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800878 callback(reinterpret_cast<mirror::Object**>(&imt_conflict_method_), arg, 0, kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700879 }
880 if (HasDefaultImt()) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800881 callback(reinterpret_cast<mirror::Object**>(&default_imt_), arg, 0, kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700882 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700883 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Mathieu Chartier590fee92013-09-13 13:46:47 -0700884 if (callee_save_methods_[i] != nullptr) {
Mathieu Chartier815873e2014-02-13 18:02:13 -0800885 callback(reinterpret_cast<mirror::Object**>(&callee_save_methods_[i]), arg, 0,
886 kRootVMInternal);
Mathieu Chartier590fee92013-09-13 13:46:47 -0700887 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700888 }
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800889 {
Ian Rogers719d1a32014-03-06 12:13:39 -0800890 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800891 for (verifier::MethodVerifier* verifier : method_verifiers_) {
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800892 verifier->VisitRoots(callback, arg);
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800893 }
894 }
Mathieu Chartier893263b2014-03-04 11:07:42 -0800895 if (preinitialization_transaction != nullptr) {
896 preinitialization_transaction->VisitRoots(callback, arg);
897 }
Brian Carlstrome24fa612011-09-29 00:53:55 -0700898}
899
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800900void Runtime::VisitNonConcurrentRoots(RootCallback* callback, void* arg) {
901 thread_list_->VisitRoots(callback, arg);
902 VisitNonThreadRoots(callback, arg);
Mathieu Chartier858f1c52012-10-17 17:45:55 -0700903}
904
Mathieu Chartier893263b2014-03-04 11:07:42 -0800905void Runtime::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) {
906 VisitConcurrentRoots(callback, arg, flags);
Mathieu Chartier83c8ee02014-01-28 14:50:23 -0800907 VisitNonConcurrentRoots(callback, arg);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -0700908}
909
Jeff Hao88474b42013-10-23 16:24:40 -0700910mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) {
911 Thread* self = Thread::Current();
912 SirtRef<mirror::ObjectArray<mirror::ArtMethod> > imtable(self, cl->AllocArtMethodArray(self, 64));
913 mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod();
Mathieu Chartier590fee92013-09-13 13:46:47 -0700914 for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) {
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100915 imtable->Set<false>(i, imt_conflict_method);
Jeff Hao88474b42013-10-23 16:24:40 -0700916 }
917 return imtable.get();
918}
919
920mirror::ArtMethod* Runtime::CreateImtConflictMethod() {
Jeff Hao88474b42013-10-23 16:24:40 -0700921 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800922 Runtime* runtime = Runtime::Current();
923 ClassLinker* class_linker = runtime->GetClassLinker();
924 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700925 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogersef7d42f2014-01-06 12:55:46 -0800926 // TODO: use a special method for imt conflict method saves.
Jeff Hao88474b42013-10-23 16:24:40 -0700927 method->SetDexMethodIndex(DexFile::kDexNoIndex);
928 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800929 if (runtime->IsCompiler()) {
930 method->SetEntryPointFromPortableCompiledCode(nullptr);
931 method->SetEntryPointFromQuickCompiledCode(nullptr);
932 } else {
933 method->SetEntryPointFromPortableCompiledCode(GetPortableImtConflictTrampoline(class_linker));
934 method->SetEntryPointFromQuickCompiledCode(GetQuickImtConflictTrampoline(class_linker));
935 }
Jeff Hao88474b42013-10-23 16:24:40 -0700936 return method.get();
937}
938
Brian Carlstromea46f952013-07-30 01:26:50 -0700939mirror::ArtMethod* Runtime::CreateResolutionMethod() {
Ian Rogers50b35e22012-10-04 10:09:15 -0700940 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800941 Runtime* runtime = Runtime::Current();
942 ClassLinker* class_linker = runtime->GetClassLinker();
943 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700944 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers19846512012-02-24 11:42:47 -0800945 // TODO: use a special method for resolution method saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700946 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Hao58df3272013-04-22 15:28:53 -0700947 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800948 if (runtime->IsCompiler()) {
949 method->SetEntryPointFromPortableCompiledCode(nullptr);
950 method->SetEntryPointFromQuickCompiledCode(nullptr);
951 } else {
952 method->SetEntryPointFromPortableCompiledCode(GetPortableResolutionTrampoline(class_linker));
953 method->SetEntryPointFromQuickCompiledCode(GetQuickResolutionTrampoline(class_linker));
954 }
Ian Rogers19846512012-02-24 11:42:47 -0800955 return method.get();
956}
957
Brian Carlstromea46f952013-07-30 01:26:50 -0700958mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
Mathieu Chartier590fee92013-09-13 13:46:47 -0700959 CalleeSaveType type) {
Ian Rogers50b35e22012-10-04 10:09:15 -0700960 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -0800961 Runtime* runtime = Runtime::Current();
962 ClassLinker* class_linker = runtime->GetClassLinker();
963 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -0700964 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers6d4d9fc2011-11-30 16:24:48 -0800965 // TODO: use a special method for callee saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -0700966 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Ian Rogersef7d42f2014-01-06 12:55:46 -0800967 method->SetEntryPointFromPortableCompiledCode(nullptr);
968 method->SetEntryPointFromQuickCompiledCode(nullptr);
Brian Carlstromae826982011-11-09 01:33:42 -0800969 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700970 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
971 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
972 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
973 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -0700974 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
975 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700976 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
977 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
978 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
979 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
980 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
981 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
982 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
983 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
984 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
985 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
986 (1 << art::arm::S30) | (1 << art::arm::S31);
987 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
988 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
989 __builtin_popcount(fp_spills) /* fprs */ +
990 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -0700991 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700992 method->SetCoreSpillMask(core_spills);
993 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -0700994 } else if (instruction_set == kMips) {
995 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
996 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -0700997 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -0700998 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -0700999 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001000 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001001 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001002 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001003 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
1004 kPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001005 method->SetFrameSizeInBytes(frame_size);
1006 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001007 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001008 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001009 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1010 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1011 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1012 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1013 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1014 1 /* Method* */) * kPointerSize, kStackAlignment);
1015 method->SetFrameSizeInBytes(frame_size);
1016 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001017 method->SetFpSpillMask(0);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001018 } else if (instruction_set == kX86_64) {
1019 uint32_t ref_spills =
Ian Rogers0177e532014-02-11 16:30:46 -08001020 (1 << art::x86_64::RBX) | (1 << art::x86_64::RBP) | (1 << art::x86_64::R12) |
1021 (1 << art::x86_64::R13) | (1 << art::x86_64::R14) | (1 << art::x86_64::R15);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001022 uint32_t arg_spills =
Ian Rogers0177e532014-02-11 16:30:46 -08001023 (1 << art::x86_64::RSI) | (1 << art::x86_64::RDX) | (1 << art::x86_64::RCX) |
1024 (1 << art::x86_64::R8) | (1 << art::x86_64::R9);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001025 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001026 (1 << art::x86_64::kNumberOfCpuRegisters); // fake return address callee save
Ian Rogers936b37f2014-02-14 00:52:24 -08001027 uint32_t fp_arg_spills =
1028 (1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) | (1 << art::x86_64::XMM2) |
1029 (1 << art::x86_64::XMM3) | (1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) |
1030 (1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7);
1031 uint32_t fp_spills = (type == kRefsAndArgs ? fp_arg_spills : 0);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001032 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Ian Rogers936b37f2014-02-14 00:52:24 -08001033 __builtin_popcount(fp_spills) /* fprs */ +
Ian Rogersef7d42f2014-01-06 12:55:46 -08001034 1 /* Method* */) * kPointerSize, kStackAlignment);
1035 method->SetFrameSizeInBytes(frame_size);
1036 method->SetCoreSpillMask(core_spills);
Ian Rogers936b37f2014-02-14 00:52:24 -08001037 method->SetFpSpillMask(fp_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001038 } else {
Ian Rogersef7d42f2014-01-06 12:55:46 -08001039 UNIMPLEMENTED(FATAL) << instruction_set;
Ian Rogersff1ed472011-09-20 13:46:24 -07001040 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001041 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001042}
1043
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001044void Runtime::DisallowNewSystemWeaks() {
1045 monitor_list_->DisallowNewMonitors();
1046 intern_table_->DisallowNewInterns();
1047 java_vm_->DisallowNewWeakGlobals();
Mathieu Chartier412c7fc2014-02-07 12:18:39 -08001048 Dbg::DisallowNewObjectRegistryObjects();
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001049}
1050
1051void Runtime::AllowNewSystemWeaks() {
1052 monitor_list_->AllowNewMonitors();
1053 intern_table_->AllowNewInterns();
1054 java_vm_->AllowNewWeakGlobals();
Mathieu Chartier412c7fc2014-02-07 12:18:39 -08001055 Dbg::AllowNewObjectRegistryObjects();
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001056}
1057
Brian Carlstromea46f952013-07-30 01:26:50 -07001058void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001059 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001060 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001061}
1062
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001063const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001064 if (class_loader == NULL) {
1065 return GetClassLinker()->GetBootClassPath();
1066 }
1067 CHECK(UseCompileTimeClassPath());
1068 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1069 CHECK(it != compile_time_class_paths_.end());
1070 return it->second;
1071}
1072
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001073void Runtime::SetCompileTimeClassPath(jobject class_loader,
1074 std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001075 CHECK(!IsStarted());
1076 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001077 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001078}
1079
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001080void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) {
1081 DCHECK(verifier != nullptr);
Ian Rogers719d1a32014-03-06 12:13:39 -08001082 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001083 method_verifiers_.insert(verifier);
1084}
1085
1086void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) {
1087 DCHECK(verifier != nullptr);
Ian Rogers719d1a32014-03-06 12:13:39 -08001088 MutexLock mu(Thread::Current(), method_verifier_lock_);
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001089 auto it = method_verifiers_.find(verifier);
1090 CHECK(it != method_verifiers_.end());
1091 method_verifiers_.erase(it);
1092}
1093
Dave Allison39c3bfb2014-01-28 18:33:52 -08001094void Runtime::StartProfiler(const char* appDir, const char* procName, bool startImmediately) {
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001095 BackgroundMethodSamplingProfiler::Start(profile_period_s_, profile_duration_s_, appDir,
Dave Allison39c3bfb2014-01-28 18:33:52 -08001096 procName, profile_interval_us_,
1097 profile_backoff_coefficient_, startImmediately);
Dave Allison0aded082013-11-07 13:15:11 -08001098}
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +01001099
1100// Transaction support.
1101// TODO move them to header file for inlining.
1102bool Runtime::IsActiveTransaction() const {
1103 return preinitialization_transaction != nullptr;
1104}
1105
1106void Runtime::EnterTransactionMode(Transaction* transaction) {
1107 DCHECK(IsCompiler());
1108 DCHECK(transaction != nullptr);
1109 DCHECK(!IsActiveTransaction());
1110 preinitialization_transaction = transaction;
1111}
1112
1113void Runtime::ExitTransactionMode() {
1114 DCHECK(IsCompiler());
1115 DCHECK(IsActiveTransaction());
1116 preinitialization_transaction = nullptr;
1117}
1118
1119void Runtime::RecordWriteField32(mirror::Object* obj, MemberOffset field_offset,
1120 uint32_t value, bool is_volatile) const {
1121 DCHECK(IsCompiler());
1122 DCHECK(IsActiveTransaction());
1123 preinitialization_transaction->RecordWriteField32(obj, field_offset, value, is_volatile);
1124}
1125
1126void Runtime::RecordWriteField64(mirror::Object* obj, MemberOffset field_offset,
1127 uint64_t value, bool is_volatile) const {
1128 DCHECK(IsCompiler());
1129 DCHECK(IsActiveTransaction());
1130 preinitialization_transaction->RecordWriteField64(obj, field_offset, value, is_volatile);
1131}
1132
1133void Runtime::RecordWriteFieldReference(mirror::Object* obj, MemberOffset field_offset,
1134 mirror::Object* value, bool is_volatile) const {
1135 DCHECK(IsCompiler());
1136 DCHECK(IsActiveTransaction());
1137 preinitialization_transaction->RecordWriteFieldReference(obj, field_offset, value, is_volatile);
1138}
1139
1140void Runtime::RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const {
1141 DCHECK(IsCompiler());
1142 DCHECK(IsActiveTransaction());
1143 preinitialization_transaction->RecordWriteArray(array, index, value);
1144}
1145
1146void Runtime::RecordStrongStringInsertion(mirror::String* s, uint32_t hash_code) const {
1147 DCHECK(IsCompiler());
1148 DCHECK(IsActiveTransaction());
1149 preinitialization_transaction->RecordStrongStringInsertion(s, hash_code);
1150}
1151
1152void Runtime::RecordWeakStringInsertion(mirror::String* s, uint32_t hash_code) const {
1153 DCHECK(IsCompiler());
1154 DCHECK(IsActiveTransaction());
1155 preinitialization_transaction->RecordWeakStringInsertion(s, hash_code);
1156}
1157
1158void Runtime::RecordStrongStringRemoval(mirror::String* s, uint32_t hash_code) const {
1159 DCHECK(IsCompiler());
1160 DCHECK(IsActiveTransaction());
1161 preinitialization_transaction->RecordStrongStringRemoval(s, hash_code);
1162}
1163
1164void Runtime::RecordWeakStringRemoval(mirror::String* s, uint32_t hash_code) const {
1165 DCHECK(IsCompiler());
1166 DCHECK(IsActiveTransaction());
1167 preinitialization_transaction->RecordWeakStringRemoval(s, hash_code);
1168}
Mathieu Chartier15d34022014-02-26 17:16:38 -08001169
1170void Runtime::SetFaultMessage(const std::string& message) {
1171 MutexLock mu(Thread::Current(), fault_message_lock_);
1172 fault_message_ = message;
1173}
Brian Carlstrom491ca9e2014-03-02 18:24:38 -08001174
Dave Allison39c3bfb2014-01-28 18:33:52 -08001175void Runtime::UpdateProfilerState(int state) {
1176 LOG(DEBUG) << "Profiler state updated to " << state;
1177}
Carl Shapiro1fb86202011-06-27 17:43:13 -07001178} // namespace art