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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>
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>
Elliott Hughesffe67362011-07-17 12:09:27 -070030
Ian Rogers166db042013-07-26 12:05:57 -070031#include "arch/arm/registers_arm.h"
32#include "arch/mips/registers_mips.h"
33#include "arch/x86/registers_x86.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080034#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070035#include "class_linker.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070036#include "debugger.h"
Ian Rogers1d54e732013-05-02 21:10:01 -070037#include "gc/accounting/card_table-inl.h"
38#include "gc/heap.h"
39#include "gc/space/space.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070040#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080041#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070042#include "intern_table.h"
Jeff Hao5d917302013-02-27 17:57:33 -080043#include "invoke_arg_array_builder.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070044#include "jni_internal.h"
Brian Carlstromea46f952013-07-30 01:26:50 -070045#include "mirror/art_field-inl.h"
46#include "mirror/art_method-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080047#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080048#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080049#include "mirror/class_loader.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080050#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070051#include "monitor.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070052#include "oat_file.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070053#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070054#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070055#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070056#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070057#include "sirt_ref.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070058#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070059#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070060#include "trace.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070061#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070062#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070063#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070064
Brian Carlstrom7934ac22013-07-26 10:54:15 -070065#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070066
Carl Shapiro1fb86202011-06-27 17:43:13 -070067namespace art {
68
Carl Shapiro2ed144c2011-07-26 16:52:08 -070069Runtime* Runtime::instance_ = NULL;
70
Elliott Hughesdcc24742011-09-07 14:02:44 -070071Runtime::Runtime()
Elliott Hughesd9c67be2012-02-02 19:54:06 -080072 : is_compiler_(false),
73 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070074 is_concurrent_gc_enabled_(true),
Anwar Ghuloum87183592013-08-14 12:12:19 -070075 is_explicit_gc_disabled_(false),
Elliott Hughes6cf23882012-06-15 15:42:07 -070076 default_stack_size_(0),
Elliott Hughesb3bd5f02012-03-08 21:05:27 -080077 heap_(NULL),
Elliott Hughesc33a32b2011-10-11 18:18:07 -070078 monitor_list_(NULL),
Elliott Hughesdcc24742011-09-07 14:02:44 -070079 thread_list_(NULL),
80 intern_table_(NULL),
81 class_linker_(NULL),
82 signal_catcher_(NULL),
83 java_vm_(NULL),
Elliott Hughes225f5a12012-06-11 11:23:48 -070084 pre_allocated_OutOfMemoryError_(NULL),
Ian Rogers19846512012-02-24 11:42:47 -080085 resolution_method_(NULL),
Ian Rogers7c3757f2012-02-15 17:18:53 -080086 system_class_loader_(NULL),
Ian Rogers120f1c72012-09-28 17:17:10 -070087 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -070088 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -080089 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -070090 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070091 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -070092 finished_starting_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070093 vfprintf_(NULL),
94 exit_(NULL),
Elliott Hughes9d5ccec2011-09-19 13:19:50 -070095 abort_(NULL),
jeffhao2692b572011-12-16 15:42:28 -080096 stats_enabled_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -070097 method_trace_(0),
98 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -080099 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700100 use_compile_time_class_path_(false),
101 main_thread_group_(NULL),
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -0700102 system_thread_group_(NULL),
103 quick_alloc_entry_points_instrumentation_counter_(0) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700104 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -0700105 callee_save_methods_[i] = NULL;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700106 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700107}
108
Carl Shapiro61e019d2011-07-14 16:53:09 -0700109Runtime::~Runtime() {
Ian Rogers120f1c72012-09-28 17:17:10 -0700110 Thread* self = Thread::Current();
111 {
112 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
113 shutting_down_started_ = true;
114 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700115 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700116 }
117 shutting_down_ = true;
118 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800119 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700120
Mathieu Chartiera6399032012-06-11 18:49:50 -0700121 // Make sure to let the GC complete if it is running.
Ian Rogers120f1c72012-09-28 17:17:10 -0700122 heap_->WaitForConcurrentGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800123 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700124
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700125 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700126 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700127 delete signal_catcher_;
128
Elliott Hughes038a8062011-09-18 14:12:41 -0700129 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700130 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700131 delete monitor_list_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700132 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800133 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700134 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700135 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700136 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700137 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200138 verifier::MethodVerifier::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700139 // TODO: acquire a static mutex on Runtime to avoid racing.
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700140 CHECK(instance_ == NULL || instance_ == this);
Carl Shapiro4acf4642011-07-26 18:54:13 -0700141 instance_ = NULL;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700142}
143
Elliott Hughese0918552011-10-28 17:18:29 -0700144struct AbortState {
145 void Dump(std::ostream& os) {
Ian Rogersf08e4732013-04-09 09:45:49 -0700146 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700147 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
148 return;
149 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700150 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700151 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800152 if (Runtime::Current() == NULL) {
153 os << "(Runtime does not yet exist!)\n";
154 return;
155 }
Elliott Hughese0918552011-10-28 17:18:29 -0700156 Thread* self = Thread::Current();
157 if (self == NULL) {
158 os << "(Aborting thread was not attached to runtime!)\n";
159 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700160 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
161 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
162 // The code below should be made robust to this.
163 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700164 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800165 self->Dump(os);
166 if (self->IsExceptionPending()) {
Ian Rogers62d6c772013-02-27 08:32:07 -0800167 ThrowLocation throw_location;
168 mirror::Throwable* exception = self->GetException(&throw_location);
169 os << "Pending exception " << PrettyTypeOf(exception)
Ian Rogersbc939662013-08-15 10:26:54 -0700170 << " thrown by '" << throw_location.Dump() << "'\n"
Ian Rogers62d6c772013-02-27 08:32:07 -0800171 << exception->Dump();
Elliott Hughes899e7892012-01-24 14:57:32 -0800172 }
Elliott Hughese0918552011-10-28 17:18:29 -0700173 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700174 DumpAllThreads(os, self);
175 }
176
177 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
178 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
179 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700180 if (!tll_already_held || !ml_already_held) {
181 os << "Dumping all threads without appropriate locks held:"
182 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700183 << (!ml_already_held ? " mutator lock" : "")
184 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700185 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700186 os << "All threads:\n";
187 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700188 }
189};
190
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700191void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700192 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800193
Elliott Hughes131aef82012-01-27 11:53:35 -0800194 // Ensure that we don't have multiple threads trying to abort at once,
195 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700196 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800197
Elliott Hughesffe67362011-07-17 12:09:27 -0700198 // Get any pending output out of the way.
199 fflush(NULL);
200
201 // Many people have difficulty distinguish aborts from crashes,
202 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700203 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800204 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700205
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700206 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700207 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700208 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700209 Runtime::Current()->abort_();
210 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700211 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700212 }
213
Elliott Hughesdd623db2013-06-11 11:20:23 -0700214#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700215 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
216 // which POSIX defines in terms of raise(3), which POSIX defines in terms
217 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
218 // libpthread, which means the stacks we dump would be useless. Calling
219 // tgkill(2) directly avoids that.
220 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700221 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
222 // 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 -0800223 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700224#else
225 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700226#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700227 // notreached
228}
229
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700230bool Runtime::PreZygoteFork() {
231 heap_->PreZygoteFork();
232 return true;
233}
234
Elliott Hughesbf86d042011-08-31 17:53:14 -0700235void Runtime::CallExitHook(jint status) {
236 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700237 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700238 exit_(status);
239 LOG(WARNING) << "Exit hook returned instead of exiting!";
240 }
241}
242
Brian Carlstrom8a436592011-08-15 21:27:23 -0700243// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
244// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
245// [gG] gigabytes.
246//
247// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700248// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
249// of 1024.
250//
251// The spec says the -Xmx and -Xms options must be multiples of 1024. It
252// doesn't say anything about -Xss.
253//
254// Returns 0 (a useless size) if "s" is malformed or specifies a low or
255// non-evenly-divisible value.
256//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800257size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700258 // strtoul accepts a leading [+-], which we don't want,
259 // so make sure our string starts with a decimal digit.
260 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700261 char* s2;
262 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700263 if (s2 != s) {
264 // s2 should be pointing just after the number.
265 // If this is the end of the string, the user
266 // has specified a number of bytes. Otherwise,
267 // there should be exactly one more character
268 // that specifies a multiplier.
269 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700270 // The remainder of the string is either a single multiplier
271 // character, or nothing to indicate that the value is in
272 // bytes.
273 char c = *s2++;
274 if (*s2 == '\0') {
275 size_t mul;
276 if (c == '\0') {
277 mul = 1;
278 } else if (c == 'k' || c == 'K') {
279 mul = KB;
280 } else if (c == 'm' || c == 'M') {
281 mul = MB;
282 } else if (c == 'g' || c == 'G') {
283 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700284 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700285 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700286 return 0;
287 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700288
289 if (val <= std::numeric_limits<size_t>::max() / mul) {
290 val *= mul;
291 } else {
292 // Clamp to a multiple of 1024.
293 val = std::numeric_limits<size_t>::max() & ~(1024-1);
294 }
295 } else {
296 // There's more than one character after the numeric part.
297 return 0;
298 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700299 }
300 // The man page says that a -Xm value must be a multiple of 1024.
301 if (val % div == 0) {
302 return val;
303 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700304 }
305 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700306 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700307}
308
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800309size_t ParseIntegerOrDie(const std::string& s) {
310 std::string::size_type colon = s.find(':');
311 if (colon == std::string::npos) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700312 LOG(FATAL) << "Missing integer: " << s;
313 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800314 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700315 char* end;
316 size_t result = strtoul(begin, &end, 10);
317 if (begin == end || *end != '\0') {
318 LOG(FATAL) << "Failed to parse integer in: " << s;
319 }
320 return result;
321}
322
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700323void Runtime::SweepSystemWeaks(RootVisitor* visitor, void* arg) {
324 GetInternTable()->SweepInternTableWeaks(visitor, arg);
325 GetMonitorList()->SweepMonitorList(visitor, arg);
326 GetJavaVM()->SweepJniWeakGlobals(visitor, arg);
327}
328
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700329Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700330 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800331 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
332 if (boot_class_path_string != NULL) {
333 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700334 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800335 const char* class_path_string = getenv("CLASSPATH");
336 if (class_path_string != NULL) {
337 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700338 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700339 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
340 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700341
Ian Rogers1d54e732013-05-02 21:10:01 -0700342 parsed->heap_initial_size_ = gc::Heap::kDefaultInitialSize;
343 parsed->heap_maximum_size_ = gc::Heap::kDefaultMaximumSize;
344 parsed->heap_min_free_ = gc::Heap::kDefaultMinFree;
345 parsed->heap_max_free_ = gc::Heap::kDefaultMaxFree;
346 parsed->heap_target_utilization_ = gc::Heap::kDefaultTargetUtilization;
Elliott Hughes6cf23882012-06-15 15:42:07 -0700347 parsed->heap_growth_limit_ = 0; // 0 means no growth limit.
Mathieu Chartier63a54342013-07-23 13:17:59 -0700348 // Default to number of processors minus one since the main GC thread also does work.
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700349 parsed->parallel_gc_threads_ = sysconf(_SC_NPROCESSORS_CONF) - 1;
350 // Only the main GC thread, no workers.
351 parsed->conc_gc_threads_ = 0;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700352 parsed->stack_size_ = 0; // 0 means default.
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700353 parsed->low_memory_mode_ = false;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700354
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800355 parsed->is_compiler_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700356 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800357 parsed->interpreter_only_ = false;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700358 parsed->is_concurrent_gc_enabled_ = true;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700359 parsed->is_explicit_gc_disabled_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700360
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700361 parsed->long_pause_log_threshold_ = gc::Heap::kDefaultLongPauseLogThreshold;
362 parsed->long_gc_log_threshold_ = gc::Heap::kDefaultLongGCLogThreshold;
363 parsed->ignore_max_footprint_ = false;
364
Elliott Hughesfc861622011-10-17 17:57:47 -0700365 parsed->lock_profiling_threshold_ = 0;
366 parsed->hook_is_sensitive_thread_ = NULL;
367
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700368 parsed->hook_vfprintf_ = vfprintf;
369 parsed->hook_exit_ = exit;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700370 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700371
buzbeea024a062013-07-31 10:47:37 -0700372 parsed->compiler_filter_ = Runtime::kDefaultCompilerFilter;
373 parsed->huge_method_threshold_ = Runtime::kDefaultHugeMethodThreshold;
374 parsed->large_method_threshold_ = Runtime::kDefaultLargeMethodThreshold;
375 parsed->small_method_threshold_ = Runtime::kDefaultSmallMethodThreshold;
376 parsed->tiny_method_threshold_ = Runtime::kDefaultTinyMethodThreshold;
377 parsed->num_dex_methods_threshold_ = Runtime::kDefaultNumDexMethodsThreshold;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700378
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700379 parsed->sea_ir_mode_ = false;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700380// gLogVerbosity.class_linker = true; // TODO: don't check this in!
381// gLogVerbosity.compiler = true; // TODO: don't check this in!
Anwar Ghuloum75a43f12013-08-13 17:22:14 -0700382// gLogVerbosity.verifier = true; // TODO: don't check this in!
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700383// gLogVerbosity.heap = true; // TODO: don't check this in!
384// gLogVerbosity.gc = true; // TODO: don't check this in!
385// gLogVerbosity.jdwp = true; // TODO: don't check this in!
386// gLogVerbosity.jni = true; // TODO: don't check this in!
387// gLogVerbosity.monitor = true; // TODO: don't check this in!
388// gLogVerbosity.startup = true; // TODO: don't check this in!
389// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
390// gLogVerbosity.threads = true; // TODO: don't check this in!
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800391
jeffhaob5e81852012-03-12 11:15:45 -0700392 parsed->method_trace_ = false;
393 parsed->method_trace_file_ = "/data/method-trace-file.bin";
394 parsed->method_trace_file_size_ = 10 * MB;
395
Brian Carlstrom8a436592011-08-15 21:27:23 -0700396 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800397 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700398 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700399 LOG(INFO) << "option[" << i << "]=" << option;
400 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800401 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800402 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700403 } else if (option == "-classpath" || option == "-cp") {
404 // TODO: support -Djava.class.path
405 i++;
406 if (i == options.size()) {
407 // TODO: usage
408 LOG(FATAL) << "Missing required class path value for " << option;
409 return NULL;
410 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800411 const StringPiece& value = options[i].first;
412 parsed->class_path_string_ = value.data();
413 } else if (option == "bootclasspath") {
414 parsed->boot_class_path_
415 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800416 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800417 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800418 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700419 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800420 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
421 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700422 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
423 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
424 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
425 return NULL;
426 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800427 } else if (StartsWith(option, "-Xms")) {
428 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700429 if (size == 0) {
430 if (ignore_unrecognized) {
431 continue;
432 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700433 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700434 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700435 return NULL;
436 }
437 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800438 } else if (StartsWith(option, "-Xmx")) {
439 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700440 if (size == 0) {
441 if (ignore_unrecognized) {
442 continue;
443 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700444 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700445 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700446 return NULL;
447 }
448 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800449 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
450 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700451 if (size == 0) {
452 if (ignore_unrecognized) {
453 continue;
454 }
455 // TODO: usage
456 LOG(FATAL) << "Failed to parse " << option;
457 return NULL;
458 }
459 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700460 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
461 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
462 if (size == 0) {
463 if (ignore_unrecognized) {
464 continue;
465 }
466 // TODO: usage
467 LOG(FATAL) << "Failed to parse " << option;
468 return NULL;
469 }
470 parsed->heap_min_free_ = size;
471 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
472 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
473 if (size == 0) {
474 if (ignore_unrecognized) {
475 continue;
476 }
477 // TODO: usage
478 LOG(FATAL) << "Failed to parse " << option;
479 return NULL;
480 }
481 parsed->heap_max_free_ = size;
482 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
483 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
484 double value;
485 iss >> value;
486 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range.
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700487 const bool sane_val = iss.eof() && (value >= 0.1) && (value <= 0.9);
Mathieu Chartier0051be62012-10-12 17:47:11 -0700488 if (!sane_val) {
489 if (ignore_unrecognized) {
490 continue;
491 }
492 LOG(FATAL) << "Invalid option '" << option << "'";
493 return NULL;
494 }
495 parsed->heap_target_utilization_ = value;
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700496 } else if (StartsWith(option, "-XX:ParallelGCThreads=")) {
497 parsed->parallel_gc_threads_ =
498 ParseMemoryOption(option.substr(strlen("-XX:ParallelGCThreads=")).c_str(), 1024);
499 } else if (StartsWith(option, "-XX:ConcGCThreads=")) {
500 parsed->conc_gc_threads_ =
501 ParseMemoryOption(option.substr(strlen("-XX:ConcGCThreads=")).c_str(), 1024);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800502 } else if (StartsWith(option, "-Xss")) {
503 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700504 if (size == 0) {
505 if (ignore_unrecognized) {
506 continue;
507 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700508 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700509 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700510 return NULL;
511 }
512 parsed->stack_size_ = size;
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700513 } else if (option == "-XX:LongPauseLogThreshold") {
514 parsed->long_pause_log_threshold_ =
515 ParseMemoryOption(option.substr(strlen("-XX:LongPauseLogThreshold=")).c_str(), 1024);
516 } else if (option == "-XX:LongGCLogThreshold") {
517 parsed->long_gc_log_threshold_ =
518 ParseMemoryOption(option.substr(strlen("-XX:LongGCLogThreshold")).c_str(), 1024);
519 } else if (option == "-XX:IgnoreMaxFootprint") {
520 parsed->ignore_max_footprint_ = true;
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700521 } else if (option == "-XX:LowMemoryMode") {
522 parsed->low_memory_mode_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800523 } else if (StartsWith(option, "-D")) {
524 parsed->properties_.push_back(option.substr(strlen("-D")));
525 } else if (StartsWith(option, "-Xjnitrace:")) {
526 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700527 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800528 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700529 } else if (option == "-Xzygote") {
530 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800531 } else if (option == "-Xint") {
532 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700533 } else if (StartsWith(option, "-Xgc:")) {
534 std::vector<std::string> gc_options;
535 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
536 for (size_t i = 0; i < gc_options.size(); ++i) {
537 if (gc_options[i] == "noconcurrent") {
538 parsed->is_concurrent_gc_enabled_ = false;
539 } else if (gc_options[i] == "concurrent") {
540 parsed->is_concurrent_gc_enabled_ = true;
541 } else {
542 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
543 }
544 }
Anwar Ghuloum87183592013-08-14 12:12:19 -0700545 } else if (option == "-XX:+DisableExplicitGC") {
546 parsed->is_explicit_gc_disabled_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800547 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700548 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800549 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700550 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800551 if (verbose_options[i] == "class") {
552 gLogVerbosity.class_linker = true;
Anwar Ghuloum75a43f12013-08-13 17:22:14 -0700553 } else if (verbose_options[i] == "verifier") {
554 gLogVerbosity.verifier = true;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800555 } else if (verbose_options[i] == "compiler") {
556 gLogVerbosity.compiler = true;
557 } else if (verbose_options[i] == "heap") {
558 gLogVerbosity.heap = true;
559 } else if (verbose_options[i] == "gc") {
560 gLogVerbosity.gc = true;
561 } else if (verbose_options[i] == "jdwp") {
562 gLogVerbosity.jdwp = true;
563 } else if (verbose_options[i] == "jni") {
564 gLogVerbosity.jni = true;
565 } else if (verbose_options[i] == "monitor") {
566 gLogVerbosity.monitor = true;
567 } else if (verbose_options[i] == "startup") {
568 gLogVerbosity.startup = true;
569 } else if (verbose_options[i] == "third-party-jni") {
570 gLogVerbosity.third_party_jni = true;
571 } else if (verbose_options[i] == "threads") {
572 gLogVerbosity.threads = true;
573 } else {
574 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
575 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700576 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800577 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughes2010a602013-07-02 14:17:23 -0700578 // Silently ignored for backwards compatibility.
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800579 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700580 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800581 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700582 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700583 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700584 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700585 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700586 parsed->hook_vfprintf_ =
587 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700588 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700589 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700590 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700591 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700592 } else if (option == "host-prefix") {
593 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800594 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
595 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700596 } else if (option == "-Xmethod-trace") {
597 parsed->method_trace_ = true;
598 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
599 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
600 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
601 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700602 } else if (option == "-Xprofile:threadcpuclock") {
603 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
604 } else if (option == "-Xprofile:wallclock") {
605 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
606 } else if (option == "-Xprofile:dualclock") {
607 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
buzbeea024a062013-07-31 10:47:37 -0700608 } else if (option == "-compiler-filter:interpret-only") {
609 parsed->compiler_filter_ = kInterpretOnly;
buzbeea024a062013-07-31 10:47:37 -0700610 } else if (option == "-compiler-filter:space") {
611 parsed->compiler_filter_ = kSpace;
612 } else if (option == "-compiler-filter:balanced") {
613 parsed->compiler_filter_ = kBalanced;
614 } else if (option == "-compiler-filter:speed") {
615 parsed->compiler_filter_ = kSpeed;
buzbeefe9ca402013-08-21 09:48:11 -0700616 } else if (option == "-compiler-filter:everything") {
617 parsed->compiler_filter_ = kEverything;
Brian Carlstrom2ce745c2013-07-17 17:44:30 -0700618 } else if (option == "-sea_ir") {
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700619 parsed->sea_ir_mode_ = true;
buzbeea024a062013-07-31 10:47:37 -0700620 } else if (StartsWith(option, "-huge-method-max:")) {
621 parsed->huge_method_threshold_ = ParseIntegerOrDie(option);
622 } else if (StartsWith(option, "-large-method-max:")) {
623 parsed->large_method_threshold_ = ParseIntegerOrDie(option);
624 } else if (StartsWith(option, "-small-method-max:")) {
625 parsed->small_method_threshold_ = ParseIntegerOrDie(option);
626 } else if (StartsWith(option, "-tiny-method-max:")) {
627 parsed->tiny_method_threshold_ = ParseIntegerOrDie(option);
628 } else if (StartsWith(option, "-num-dex-methods-max:")) {
629 parsed->num_dex_methods_threshold_ = ParseIntegerOrDie(option);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700630 } else {
631 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700632 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700633 LOG(ERROR) << "Unrecognized option " << option;
634 // TODO: this should exit, but for now tolerate unknown options
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700635 // return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700636 }
637 }
638 }
639
Brian Carlstromfb67b722013-06-24 23:41:51 -0700640 // If a reference to the dalvik core.jar snuck in, replace it with
641 // the art specific version. This can happen with on device
642 // boot.art/boot.oat generation by GenerateImage which relies on the
643 // value of BOOTCLASSPATH.
644 std::string core_jar("/core.jar");
645 size_t core_jar_pos = parsed->boot_class_path_string_.find(core_jar);
646 if (core_jar_pos != std::string::npos) {
647 parsed->boot_class_path_string_.replace(core_jar_pos, core_jar.size(), "/core-libart.jar");
648 }
649
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800650 if (!parsed->is_compiler_ && parsed->image_.empty()) {
651 parsed->image_ += GetAndroidRoot();
652 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700653 }
jeffhaoc1160702011-10-27 15:48:45 -0700654 if (parsed->heap_growth_limit_ == 0) {
655 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
656 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700657
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700658 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700659}
660
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700661bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700662 // TODO: acquire a static mutex on Runtime to avoid racing.
663 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700664 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700665 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700666 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700667 instance_ = new Runtime;
668 if (!instance_->Init(options, ignore_unrecognized)) {
669 delete instance_;
670 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700671 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700672 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700673 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700674}
Elliott Hughes0af55432011-08-17 18:37:28 -0700675
Ian Rogers365c1022012-06-22 15:05:28 -0700676static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800677 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700678 return;
679 }
680
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700681 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700682
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800683 mirror::Class* class_loader_class =
684 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700685 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700686
Brian Carlstromea46f952013-07-30 01:26:50 -0700687 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800688 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700689 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700690
Jeff Hao5d917302013-02-27 17:57:33 -0800691 JValue result;
Jeff Hao5d917302013-02-27 17:57:33 -0800692 ArgArray arg_array(NULL, 0);
Jeff Hao6474d192013-03-26 14:08:09 -0700693 InvokeWithArgArray(soa, getSystemClassLoader, &arg_array, &result, 'L');
Jeff Hao5d917302013-02-27 17:57:33 -0800694 mirror::ClassLoader* class_loader = down_cast<mirror::ClassLoader*>(result.GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700695 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500696
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700697 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700698
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800699 mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700700 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
701
Brian Carlstromea46f952013-07-30 01:26:50 -0700702 mirror::ArtField* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
703 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500704 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700705
Ian Rogerscfaa4552012-11-26 21:00:08 -0800706 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700707}
708
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700709bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800710 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700711
712 CHECK(host_prefix_.empty()) << host_prefix_;
713
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700714 // Restore main thread state to kNative as expected by native code.
Ian Rogersa436fde2013-08-27 23:34:06 -0700715 Thread* self = Thread::Current();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700716 self->TransitionFromRunnableToSuspended(kNative);
717
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700718 started_ = true;
719
Brian Carlstromae826982011-11-09 01:33:42 -0800720 // InitNativeMethods needs to be after started_ so that the classes
721 // it touches will have methods linked to the oat file if necessary.
722 InitNativeMethods();
723
Ian Rogers365c1022012-06-22 15:05:28 -0700724 // Initialize well known thread group values that may be accessed threads while attaching.
725 InitThreadGroups(self);
726
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500727 Thread::FinishStartup();
728
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700729 if (is_zygote_) {
730 if (!InitZygote()) {
731 return false;
732 }
733 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700734 DidForkFromZygote();
735 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700736
Elliott Hughes85d15452011-09-16 17:33:01 -0700737 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700738
Brian Carlstromaded5f72011-10-07 17:15:04 -0700739 CreateSystemClassLoader();
740
Elliott Hughes225f5a12012-06-11 11:23:48 -0700741 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700742
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800743 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700744
745 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700746
747 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700748}
749
Ian Rogers120f1c72012-09-28 17:17:10 -0700750void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
751 DCHECK_GT(threads_being_born_, 0U);
752 threads_being_born_--;
753 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700754 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700755 }
756}
757
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700758// Do zygote-mode-only initialization.
759bool Runtime::InitZygote() {
760 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700761 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700762
763 // See storage config details at http://source.android.com/tech/storage/
764 // Create private mount namespace shared by all children
765 if (unshare(CLONE_NEWNS) == -1) {
766 PLOG(WARNING) << "Failed to unshare()";
767 return false;
768 }
769
770 // Mark rootfs as being a slave so that changes from default
771 // namespace only flow into our children.
772 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
773 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
774 return false;
775 }
776
777 // Create a staging tmpfs that is shared by our children; they will
778 // bind mount storage into their respective private namespaces, which
779 // are isolated from each other.
780 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
781 if (target_base != NULL) {
782 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
Jeff Sharkey52cd1e82013-09-17 16:25:12 -0700783 "uid=0,gid=1028,mode=0751") == -1) {
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700784 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
785 return false;
786 }
787 }
788
789 return true;
790}
791
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700792void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700793 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700794
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700795 // Create the thread pool.
796 heap_->CreateThreadPool();
797
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700798 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700799
800 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
801 // this will pause the runtime, so we probably want this to come last.
802 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700803}
804
805void Runtime::StartSignalCatcher() {
806 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700807 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700808 }
809}
810
Elliott Hughes85d15452011-09-16 17:33:01 -0700811void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800812 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700813
Elliott Hughes719b3232011-09-25 17:42:19 -0700814 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700815
816 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700817 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700818
Elliott Hughes719b3232011-09-25 17:42:19 -0700819 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700820 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
821 WellKnownClasses::java_lang_Daemons_start);
822 if (env->ExceptionCheck()) {
823 env->ExceptionDescribe();
824 LOG(FATAL) << "Error starting java.lang.Daemons";
825 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700826
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800827 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700828}
829
Elliott Hughes0af55432011-08-17 18:37:28 -0700830bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700831 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700832
Elliott Hughes90a33692011-08-30 13:27:07 -0700833 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
834 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700835 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700836 return false;
837 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800838 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700839
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700840 QuasiAtomic::Startup();
841
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800842 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700843
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700844 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800845 boot_class_path_string_ = options->boot_class_path_string_;
846 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700847 properties_ = options->properties_;
848
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800849 is_compiler_ = options->is_compiler_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700850 is_zygote_ = options->is_zygote_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700851 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700852 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700853
buzbeea024a062013-07-31 10:47:37 -0700854 compiler_filter_ = options->compiler_filter_;
855 huge_method_threshold_ = options->huge_method_threshold_;
856 large_method_threshold_ = options->large_method_threshold_;
857 small_method_threshold_ = options->small_method_threshold_;
858 tiny_method_threshold_ = options->tiny_method_threshold_;
859 num_dex_methods_threshold_ = options->num_dex_methods_threshold_;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700860
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700861 sea_ir_mode_ = options->sea_ir_mode_;
Elliott Hughes0af55432011-08-17 18:37:28 -0700862 vfprintf_ = options->hook_vfprintf_;
863 exit_ = options->hook_exit_;
864 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700865
Elliott Hughesbe759c62011-09-08 19:38:21 -0700866 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700867 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700868
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700869 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800870 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700871 intern_table_ = new InternTable;
872
Logan Chiendd361c92012-04-10 23:40:37 +0800873
Ian Rogers62d6c772013-02-27 08:32:07 -0800874 if (options->interpreter_only_) {
875 GetInstrumentation()->ForceInterpretOnly();
876 }
877
Ian Rogers1d54e732013-05-02 21:10:01 -0700878 heap_ = new gc::Heap(options->heap_initial_size_,
879 options->heap_growth_limit_,
880 options->heap_min_free_,
881 options->heap_max_free_,
882 options->heap_target_utilization_,
883 options->heap_maximum_size_,
884 options->image_,
Mathieu Chartier63a54342013-07-23 13:17:59 -0700885 options->is_concurrent_gc_enabled_,
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700886 options->parallel_gc_threads_,
887 options->conc_gc_threads_,
888 options->low_memory_mode_,
889 options->long_pause_log_threshold_,
890 options->long_gc_log_threshold_,
891 options->ignore_max_footprint_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700892
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700893 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700894 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700895
Elliott Hughesa0957642011-09-02 14:27:33 -0700896 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700897
Elliott Hughesbe759c62011-09-08 19:38:21 -0700898 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700899
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800900 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
901 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
902 // thread, we do not get a java peer.
903 Thread* self = Thread::Attach("main", false, NULL, false);
904 CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700905 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700906
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700907 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700908 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700909
Ian Rogersa436fde2013-08-27 23:34:06 -0700910 // Now we're attached, we can take the heap locks and validate the heap.
Ian Rogers141d6222012-04-05 12:23:06 -0700911 GetHeap()->EnableObjectValidation();
912
Ian Rogers1d54e732013-05-02 21:10:01 -0700913 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
914 if (GetHeap()->GetContinuousSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800915 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
916 } else {
917 CHECK(options->boot_class_path_ != NULL);
918 CHECK_NE(options->boot_class_path_->size(), 0U);
919 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
920 }
921 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800922 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700923
jeffhaob5e81852012-03-12 11:15:45 -0700924 method_trace_ = options->method_trace_;
925 method_trace_file_ = options->method_trace_file_;
926 method_trace_file_size_ = options->method_trace_file_size_;
927
928 if (options->method_trace_) {
Jeff Hao23009dc2013-08-22 15:36:42 -0700929 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0,
930 false, false, 0);
jeffhaob5e81852012-03-12 11:15:45 -0700931 }
932
Ian Rogersa436fde2013-08-27 23:34:06 -0700933 // Pre-allocate an OutOfMemoryError for the double-OOME case.
934 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
935 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
936 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
937 self->ClearException();
938
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800939 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700940 return true;
941}
942
Elliott Hughes038a8062011-09-18 14:12:41 -0700943void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800944 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700945 Thread* self = Thread::Current();
946 JNIEnv* env = self->GetJniEnv();
947
Elliott Hughes418d20f2011-09-22 14:00:39 -0700948 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700949 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700950
Elliott Hughes418d20f2011-09-22 14:00:39 -0700951 // First set up JniConstants, which is used by both the runtime's built-in native
952 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700953 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700954 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700955
Elliott Hughes418d20f2011-09-22 14:00:39 -0700956 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700957 RegisterRuntimeNativeMethods(env);
958
Elliott Hughes418d20f2011-09-22 14:00:39 -0700959 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
960 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
961 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700962 {
963 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
964 std::string reason;
965 self->TransitionFromSuspendedToRunnable();
966 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
967 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
968 }
969 self->TransitionFromRunnableToSuspended(kNative);
970 }
Ian Rogersef28b142012-11-30 14:22:18 -0800971
972 // Initialize well known classes that may invoke runtime native methods.
973 WellKnownClasses::LateInit(env);
974
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800975 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700976}
977
Ian Rogers365c1022012-06-22 15:05:28 -0700978void Runtime::InitThreadGroups(Thread* self) {
979 JNIEnvExt* env = self->GetJniEnv();
980 ScopedJniEnvLocalRefState env_state(env);
981 main_thread_group_ =
982 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
983 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700984 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700985 system_thread_group_ =
986 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
987 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700988 CHECK(system_thread_group_ != NULL || IsCompiler());
989}
990
991jobject Runtime::GetMainThreadGroup() const {
992 CHECK(main_thread_group_ != NULL || IsCompiler());
993 return main_thread_group_;
994}
995
996jobject Runtime::GetSystemThreadGroup() const {
997 CHECK(system_thread_group_ != NULL || IsCompiler());
998 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700999}
1000
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001001void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
1002#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -08001003 // Register Throwable first so that registration of other native methods can throw exceptions
1004 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -07001005 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001006 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -07001007 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -07001008 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -07001009 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -07001010 REGISTER(register_java_lang_Class);
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001011 REGISTER(register_java_lang_DexCache);
Elliott Hughesbf86d042011-08-31 17:53:14 -07001012 REGISTER(register_java_lang_Object);
1013 REGISTER(register_java_lang_Runtime);
1014 REGISTER(register_java_lang_String);
1015 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -07001016 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -07001017 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -07001018 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -07001019 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -07001020 REGISTER(register_java_lang_reflect_Field);
1021 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -04001022 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -07001023 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -07001024 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -07001025 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -07001026 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001027#undef REGISTER
1028}
1029
Elliott Hughesc967f782012-04-16 10:23:15 -07001030void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -07001031 GetClassLinker()->DumpForSigQuit(os);
1032 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -07001033 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -07001034 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -07001035 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -07001036
Elliott Hughesc967f782012-04-16 10:23:15 -07001037 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -08001038 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -07001039}
1040
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001041void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -07001042 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001043 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
1044 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
1045 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001046 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
1047 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001048 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
1049 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
1050 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
1051 }
1052}
1053
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001054void Runtime::SetStatsEnabled(bool new_state) {
1055 if (new_state == true) {
1056 GetStats()->Clear(~0);
1057 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1058 Thread::Current()->GetStats()->Clear(~0);
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -07001059 InstrumentQuickAllocEntryPoints();
1060 } else {
1061 UninstrumentQuickAllocEntryPoints();
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001062 }
1063 stats_enabled_ = new_state;
1064}
1065
1066void Runtime::ResetStats(int kinds) {
1067 GetStats()->Clear(kinds & 0xffff);
1068 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1069 Thread::Current()->GetStats()->Clear(kinds >> 16);
1070}
1071
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001072int32_t Runtime::GetStat(int kind) {
1073 RuntimeStats* stats;
1074 if (kind < (1<<16)) {
1075 stats = GetStats();
1076 } else {
1077 stats = Thread::Current()->GetStats();
1078 kind >>= 16;
1079 }
1080 switch (kind) {
1081 case KIND_ALLOCATED_OBJECTS:
1082 return stats->allocated_objects;
1083 case KIND_ALLOCATED_BYTES:
1084 return stats->allocated_bytes;
1085 case KIND_FREED_OBJECTS:
1086 return stats->freed_objects;
1087 case KIND_FREED_BYTES:
1088 return stats->freed_bytes;
1089 case KIND_GC_INVOCATIONS:
1090 return stats->gc_for_alloc_count;
1091 case KIND_CLASS_INIT_COUNT:
1092 return stats->class_init_count;
1093 case KIND_CLASS_INIT_TIME:
1094 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -07001095 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001096 case KIND_EXT_ALLOCATED_OBJECTS:
1097 case KIND_EXT_ALLOCATED_BYTES:
1098 case KIND_EXT_FREED_OBJECTS:
1099 case KIND_EXT_FREED_BYTES:
1100 return 0; // backward compatibility
1101 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -07001102 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -07001103 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001104 }
1105}
1106
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001107void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -07001108 SignalSet signals;
1109 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001110 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -07001111 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -07001112 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -07001113 signals.Add(SIGUSR1);
1114 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001115}
1116
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001117bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
1118 bool create_peer) {
1119 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -07001120 if (thread_name == NULL) {
1121 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1122 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001123 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001124}
1125
Elliott Hughesd92bec42011-09-02 17:04:36 -07001126void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001127 Thread* self = Thread::Current();
1128 if (self == NULL) {
1129 LOG(FATAL) << "attempting to detach thread that is not attached";
1130 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001131 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001132 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1133 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001134 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001135}
1136
Ian Rogersa436fde2013-08-27 23:34:06 -07001137 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const {
1138 if (pre_allocated_OutOfMemoryError_ == NULL) {
1139 LOG(ERROR) << "Failed to return pre-allocated OOME";
1140 }
1141 return pre_allocated_OutOfMemoryError_;
1142}
1143
Ian Rogers1d54e732013-05-02 21:10:01 -07001144void Runtime::VisitConcurrentRoots(RootVisitor* visitor, void* arg, bool only_dirty,
1145 bool clean_dirty) {
Mathieu Chartierc4621982013-09-16 19:43:47 -07001146 intern_table_->VisitRoots(visitor, arg, only_dirty, clean_dirty);
1147 class_linker_->VisitRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001148}
1149
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001150void Runtime::VisitNonThreadRoots(RootVisitor* visitor, void* arg) {
Brian Carlstrome24fa612011-09-29 00:53:55 -07001151 java_vm_->VisitRoots(visitor, arg);
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001152 if (pre_allocated_OutOfMemoryError_ != nullptr) {
1153 pre_allocated_OutOfMemoryError_ = reinterpret_cast<mirror::Throwable*>(
1154 visitor(pre_allocated_OutOfMemoryError_, arg));
1155 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001156 }
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001157 resolution_method_ = reinterpret_cast<mirror::ArtMethod*>(visitor(resolution_method_, arg));
1158 DCHECK(resolution_method_ != nullptr);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001159 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001160 callee_save_methods_[i] = reinterpret_cast<mirror::ArtMethod*>(
1161 visitor(callee_save_methods_[i], arg));
1162 DCHECK(callee_save_methods_[i] != nullptr);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001163 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001164}
1165
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001166void Runtime::VisitNonConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001167 thread_list_->VisitRoots(visitor, arg);
1168 VisitNonThreadRoots(visitor, arg);
1169}
1170
Ian Rogers1d54e732013-05-02 21:10:01 -07001171void Runtime::VisitRoots(RootVisitor* visitor, void* arg, bool only_dirty, bool clean_dirty) {
1172 VisitConcurrentRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001173 VisitNonConcurrentRoots(visitor, arg);
1174}
1175
Brian Carlstromea46f952013-07-30 01:26:50 -07001176mirror::ArtMethod* Runtime::CreateResolutionMethod() {
1177 mirror::Class* method_class = mirror::ArtMethod::GetJavaLangReflectArtMethod();
Ian Rogers50b35e22012-10-04 10:09:15 -07001178 Thread* self = Thread::Current();
Brian Carlstromea46f952013-07-30 01:26:50 -07001179 SirtRef<mirror::ArtMethod>
1180 method(self, down_cast<mirror::ArtMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001181 method->SetDeclaringClass(method_class);
1182 // TODO: use a special method for resolution method saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001183 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Hao58df3272013-04-22 15:28:53 -07001184 // When compiling, the code pointer will get set later when the image is loaded.
Jeff Hao0aba0ba2013-06-03 14:49:28 -07001185 Runtime* r = Runtime::Current();
1186 ClassLinker* cl = r->GetClassLinker();
1187 method->SetEntryPointFromCompiledCode(r->IsCompiler() ? NULL : GetResolutionTrampoline(cl));
Ian Rogers19846512012-02-24 11:42:47 -08001188 return method.get();
1189}
1190
Brian Carlstromea46f952013-07-30 01:26:50 -07001191mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001192 CalleeSaveType type) {
Brian Carlstromea46f952013-07-30 01:26:50 -07001193 mirror::Class* method_class = mirror::ArtMethod::GetJavaLangReflectArtMethod();
Ian Rogers50b35e22012-10-04 10:09:15 -07001194 Thread* self = Thread::Current();
Brian Carlstromea46f952013-07-30 01:26:50 -07001195 SirtRef<mirror::ArtMethod>
1196 method(self, down_cast<mirror::ArtMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001197 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001198 // TODO: use a special method for callee saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001199 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Haoaa4a7932013-05-13 11:28:27 -07001200 method->SetEntryPointFromCompiledCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001201 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001202 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1203 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1204 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1205 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001206 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1207 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001208 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1209 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1210 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1211 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1212 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1213 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1214 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1215 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1216 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1217 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1218 (1 << art::arm::S30) | (1 << art::arm::S31);
1219 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1220 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1221 __builtin_popcount(fp_spills) /* fprs */ +
1222 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001223 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001224 method->SetCoreSpillMask(core_spills);
1225 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001226 } else if (instruction_set == kMips) {
1227 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1228 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001229 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -07001230 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001231 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001232 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001233 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001234 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001235 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
1236 kPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001237 method->SetFrameSizeInBytes(frame_size);
1238 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001239 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001240 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001241 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1242 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1243 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1244 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1245 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1246 1 /* Method* */) * kPointerSize, kStackAlignment);
1247 method->SetFrameSizeInBytes(frame_size);
1248 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001249 method->SetFpSpillMask(0);
1250 } else {
1251 UNIMPLEMENTED(FATAL);
1252 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001253 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001254}
1255
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001256void Runtime::DisallowNewSystemWeaks() {
1257 monitor_list_->DisallowNewMonitors();
1258 intern_table_->DisallowNewInterns();
1259 java_vm_->DisallowNewWeakGlobals();
1260}
1261
1262void Runtime::AllowNewSystemWeaks() {
1263 monitor_list_->AllowNewMonitors();
1264 intern_table_->AllowNewInterns();
1265 java_vm_->AllowNewWeakGlobals();
1266}
1267
Brian Carlstromea46f952013-07-30 01:26:50 -07001268void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001269 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001270 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001271}
1272
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001273const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001274 if (class_loader == NULL) {
1275 return GetClassLinker()->GetBootClassPath();
1276 }
1277 CHECK(UseCompileTimeClassPath());
1278 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1279 CHECK(it != compile_time_class_paths_.end());
1280 return it->second;
1281}
1282
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001283void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001284 CHECK(!IsStarted());
1285 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001286 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001287}
1288
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -07001289static void ResetQuickAllocEntryPointsForThread(Thread* thread, void* arg) {
1290 thread->ResetQuickAllocEntryPointsForThread();
1291}
1292
1293void SetQuickAllocEntryPointsInstrumented(bool instrumented);
1294
1295void Runtime::InstrumentQuickAllocEntryPoints() {
1296 ThreadList* tl = thread_list_;
1297 Thread* self = Thread::Current();
1298 tl->SuspendAll();
1299 {
1300 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
1301 MutexLock mu2(self, *Locks::thread_list_lock_);
1302 DCHECK_LE(quick_alloc_entry_points_instrumentation_counter_, 0);
1303 int old_counter = quick_alloc_entry_points_instrumentation_counter_++;
1304 if (old_counter == 0) {
1305 // If it was disabled, enable it.
1306 SetQuickAllocEntryPointsInstrumented(true);
1307 tl->ForEach(ResetQuickAllocEntryPointsForThread, NULL);
1308 }
1309 }
1310 tl->ResumeAll();
1311}
1312
1313void Runtime::UninstrumentQuickAllocEntryPoints() {
1314 ThreadList* tl = thread_list_;
1315 Thread* self = Thread::Current();
1316 tl->SuspendAll();
1317 {
1318 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
1319 MutexLock mu2(self, *Locks::thread_list_lock_);
1320 DCHECK_LT(quick_alloc_entry_points_instrumentation_counter_, 0);
1321 int new_counter = --quick_alloc_entry_points_instrumentation_counter_;
1322 if (new_counter == 0) {
1323 // Disable it if the counter becomes zero.
1324 SetQuickAllocEntryPointsInstrumented(false);
1325 tl->ForEach(ResetQuickAllocEntryPointsForThread, NULL);
1326 }
1327 }
1328 tl->ResumeAll();
1329}
1330
Carl Shapiro1fb86202011-06-27 17:43:13 -07001331} // namespace art