blob: 8a20bbcac47b5da4b9f575c79c44695cafde543c [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>
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),
Ian Rogersd9c4fc92013-10-01 19:45:43 -070078 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation),
Elliott Hughesc33a32b2011-10-11 18:18:07 -070079 monitor_list_(NULL),
Elliott Hughesdcc24742011-09-07 14:02:44 -070080 thread_list_(NULL),
81 intern_table_(NULL),
82 class_linker_(NULL),
83 signal_catcher_(NULL),
84 java_vm_(NULL),
Elliott Hughes225f5a12012-06-11 11:23:48 -070085 pre_allocated_OutOfMemoryError_(NULL),
Ian Rogers19846512012-02-24 11:42:47 -080086 resolution_method_(NULL),
Ian Rogers7c3757f2012-02-15 17:18:53 -080087 system_class_loader_(NULL),
Ian Rogers120f1c72012-09-28 17:17:10 -070088 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -070089 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -080090 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -070091 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070092 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -070093 finished_starting_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070094 vfprintf_(NULL),
95 exit_(NULL),
Elliott Hughes9d5ccec2011-09-19 13:19:50 -070096 abort_(NULL),
jeffhao2692b572011-12-16 15:42:28 -080097 stats_enabled_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -070098 method_trace_(0),
99 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -0800100 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700101 use_compile_time_class_path_(false),
102 main_thread_group_(NULL),
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -0700103 system_thread_group_(NULL),
104 quick_alloc_entry_points_instrumentation_counter_(0) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700105 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -0700106 callee_save_methods_[i] = NULL;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700107 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700108}
109
Carl Shapiro61e019d2011-07-14 16:53:09 -0700110Runtime::~Runtime() {
Ian Rogers120f1c72012-09-28 17:17:10 -0700111 Thread* self = Thread::Current();
112 {
113 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
114 shutting_down_started_ = true;
115 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700116 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700117 }
118 shutting_down_ = true;
119 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800120 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700121
Mathieu Chartiera6399032012-06-11 18:49:50 -0700122 // Make sure to let the GC complete if it is running.
Ian Rogers120f1c72012-09-28 17:17:10 -0700123 heap_->WaitForConcurrentGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800124 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700125
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700126 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700127 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700128 delete signal_catcher_;
129
Elliott Hughes038a8062011-09-18 14:12:41 -0700130 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700131 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700132 delete monitor_list_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700133 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800134 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700135 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700136 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700137 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700138 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200139 verifier::MethodVerifier::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700140 // TODO: acquire a static mutex on Runtime to avoid racing.
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700141 CHECK(instance_ == NULL || instance_ == this);
Carl Shapiro4acf4642011-07-26 18:54:13 -0700142 instance_ = NULL;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700143}
144
Elliott Hughese0918552011-10-28 17:18:29 -0700145struct AbortState {
146 void Dump(std::ostream& os) {
Ian Rogersf08e4732013-04-09 09:45:49 -0700147 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700148 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
149 return;
150 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700151 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700152 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800153 if (Runtime::Current() == NULL) {
154 os << "(Runtime does not yet exist!)\n";
155 return;
156 }
Elliott Hughese0918552011-10-28 17:18:29 -0700157 Thread* self = Thread::Current();
158 if (self == NULL) {
159 os << "(Aborting thread was not attached to runtime!)\n";
160 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700161 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
162 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
163 // The code below should be made robust to this.
164 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700165 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800166 self->Dump(os);
167 if (self->IsExceptionPending()) {
Ian Rogers62d6c772013-02-27 08:32:07 -0800168 ThrowLocation throw_location;
169 mirror::Throwable* exception = self->GetException(&throw_location);
170 os << "Pending exception " << PrettyTypeOf(exception)
Ian Rogersbc939662013-08-15 10:26:54 -0700171 << " thrown by '" << throw_location.Dump() << "'\n"
Ian Rogers62d6c772013-02-27 08:32:07 -0800172 << exception->Dump();
Elliott Hughes899e7892012-01-24 14:57:32 -0800173 }
Elliott Hughese0918552011-10-28 17:18:29 -0700174 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700175 DumpAllThreads(os, self);
176 }
177
178 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
179 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
180 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700181 if (!tll_already_held || !ml_already_held) {
182 os << "Dumping all threads without appropriate locks held:"
183 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700184 << (!ml_already_held ? " mutator lock" : "")
185 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700186 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700187 os << "All threads:\n";
188 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700189 }
190};
191
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700192void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700193 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800194
Elliott Hughes131aef82012-01-27 11:53:35 -0800195 // Ensure that we don't have multiple threads trying to abort at once,
196 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700197 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800198
Elliott Hughesffe67362011-07-17 12:09:27 -0700199 // Get any pending output out of the way.
200 fflush(NULL);
201
202 // Many people have difficulty distinguish aborts from crashes,
203 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700204 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800205 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700206
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700207 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700208 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700209 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700210 Runtime::Current()->abort_();
211 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700212 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700213 }
214
Elliott Hughesdd623db2013-06-11 11:20:23 -0700215#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700216 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
217 // which POSIX defines in terms of raise(3), which POSIX defines in terms
218 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
219 // libpthread, which means the stacks we dump would be useless. Calling
220 // tgkill(2) directly avoids that.
221 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700222 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
223 // 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 -0800224 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700225#else
226 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700227#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700228 // notreached
229}
230
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700231bool Runtime::PreZygoteFork() {
232 heap_->PreZygoteFork();
233 return true;
234}
235
Elliott Hughesbf86d042011-08-31 17:53:14 -0700236void Runtime::CallExitHook(jint status) {
237 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700238 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700239 exit_(status);
240 LOG(WARNING) << "Exit hook returned instead of exiting!";
241 }
242}
243
Brian Carlstrom8a436592011-08-15 21:27:23 -0700244// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
245// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
246// [gG] gigabytes.
247//
248// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700249// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
250// of 1024.
251//
252// The spec says the -Xmx and -Xms options must be multiples of 1024. It
253// doesn't say anything about -Xss.
254//
255// Returns 0 (a useless size) if "s" is malformed or specifies a low or
256// non-evenly-divisible value.
257//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800258size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700259 // strtoul accepts a leading [+-], which we don't want,
260 // so make sure our string starts with a decimal digit.
261 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700262 char* s2;
263 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700264 if (s2 != s) {
265 // s2 should be pointing just after the number.
266 // If this is the end of the string, the user
267 // has specified a number of bytes. Otherwise,
268 // there should be exactly one more character
269 // that specifies a multiplier.
270 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700271 // The remainder of the string is either a single multiplier
272 // character, or nothing to indicate that the value is in
273 // bytes.
274 char c = *s2++;
275 if (*s2 == '\0') {
276 size_t mul;
277 if (c == '\0') {
278 mul = 1;
279 } else if (c == 'k' || c == 'K') {
280 mul = KB;
281 } else if (c == 'm' || c == 'M') {
282 mul = MB;
283 } else if (c == 'g' || c == 'G') {
284 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700285 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700286 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700287 return 0;
288 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700289
290 if (val <= std::numeric_limits<size_t>::max() / mul) {
291 val *= mul;
292 } else {
293 // Clamp to a multiple of 1024.
294 val = std::numeric_limits<size_t>::max() & ~(1024-1);
295 }
296 } else {
297 // There's more than one character after the numeric part.
298 return 0;
299 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700300 }
301 // The man page says that a -Xm value must be a multiple of 1024.
302 if (val % div == 0) {
303 return val;
304 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700305 }
306 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700307 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700308}
309
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800310size_t ParseIntegerOrDie(const std::string& s) {
311 std::string::size_type colon = s.find(':');
312 if (colon == std::string::npos) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700313 LOG(FATAL) << "Missing integer: " << s;
314 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800315 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700316 char* end;
317 size_t result = strtoul(begin, &end, 10);
318 if (begin == end || *end != '\0') {
319 LOG(FATAL) << "Failed to parse integer in: " << s;
320 }
321 return result;
322}
323
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700324void Runtime::SweepSystemWeaks(RootVisitor* visitor, void* arg) {
325 GetInternTable()->SweepInternTableWeaks(visitor, arg);
326 GetMonitorList()->SweepMonitorList(visitor, arg);
327 GetJavaVM()->SweepJniWeakGlobals(visitor, arg);
328}
329
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700330Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700331 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800332 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
333 if (boot_class_path_string != NULL) {
334 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700335 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800336 const char* class_path_string = getenv("CLASSPATH");
337 if (class_path_string != NULL) {
338 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700339 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700340 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
341 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700342
Ian Rogers1d54e732013-05-02 21:10:01 -0700343 parsed->heap_initial_size_ = gc::Heap::kDefaultInitialSize;
344 parsed->heap_maximum_size_ = gc::Heap::kDefaultMaximumSize;
345 parsed->heap_min_free_ = gc::Heap::kDefaultMinFree;
346 parsed->heap_max_free_ = gc::Heap::kDefaultMaxFree;
347 parsed->heap_target_utilization_ = gc::Heap::kDefaultTargetUtilization;
Elliott Hughes6cf23882012-06-15 15:42:07 -0700348 parsed->heap_growth_limit_ = 0; // 0 means no growth limit.
Mathieu Chartier63a54342013-07-23 13:17:59 -0700349 // Default to number of processors minus one since the main GC thread also does work.
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700350 parsed->parallel_gc_threads_ = sysconf(_SC_NPROCESSORS_CONF) - 1;
351 // Only the main GC thread, no workers.
352 parsed->conc_gc_threads_ = 0;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700353 parsed->stack_size_ = 0; // 0 means default.
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700354 parsed->max_spins_before_thin_lock_inflation_ = Monitor::kDefaultMaxSpinsBeforeThinLockInflation;
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700355 parsed->low_memory_mode_ = false;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700356
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800357 parsed->is_compiler_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700358 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800359 parsed->interpreter_only_ = false;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700360 parsed->is_concurrent_gc_enabled_ = true;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700361 parsed->is_explicit_gc_disabled_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700362
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700363 parsed->long_pause_log_threshold_ = gc::Heap::kDefaultLongPauseLogThreshold;
364 parsed->long_gc_log_threshold_ = gc::Heap::kDefaultLongGCLogThreshold;
365 parsed->ignore_max_footprint_ = false;
366
Elliott Hughesfc861622011-10-17 17:57:47 -0700367 parsed->lock_profiling_threshold_ = 0;
368 parsed->hook_is_sensitive_thread_ = NULL;
369
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700370 parsed->hook_vfprintf_ = vfprintf;
371 parsed->hook_exit_ = exit;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700372 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700373
buzbeea024a062013-07-31 10:47:37 -0700374 parsed->compiler_filter_ = Runtime::kDefaultCompilerFilter;
375 parsed->huge_method_threshold_ = Runtime::kDefaultHugeMethodThreshold;
376 parsed->large_method_threshold_ = Runtime::kDefaultLargeMethodThreshold;
377 parsed->small_method_threshold_ = Runtime::kDefaultSmallMethodThreshold;
378 parsed->tiny_method_threshold_ = Runtime::kDefaultTinyMethodThreshold;
379 parsed->num_dex_methods_threshold_ = Runtime::kDefaultNumDexMethodsThreshold;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700380
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700381 parsed->sea_ir_mode_ = false;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700382// gLogVerbosity.class_linker = true; // TODO: don't check this in!
383// gLogVerbosity.compiler = true; // TODO: don't check this in!
Anwar Ghuloum75a43f12013-08-13 17:22:14 -0700384// gLogVerbosity.verifier = true; // TODO: don't check this in!
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700385// gLogVerbosity.heap = true; // TODO: don't check this in!
386// gLogVerbosity.gc = true; // TODO: don't check this in!
387// gLogVerbosity.jdwp = true; // TODO: don't check this in!
388// gLogVerbosity.jni = true; // TODO: don't check this in!
389// gLogVerbosity.monitor = true; // TODO: don't check this in!
390// gLogVerbosity.startup = true; // TODO: don't check this in!
391// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
392// gLogVerbosity.threads = true; // TODO: don't check this in!
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800393
jeffhaob5e81852012-03-12 11:15:45 -0700394 parsed->method_trace_ = false;
395 parsed->method_trace_file_ = "/data/method-trace-file.bin";
396 parsed->method_trace_file_size_ = 10 * MB;
397
Brian Carlstrom8a436592011-08-15 21:27:23 -0700398 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800399 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700400 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700401 LOG(INFO) << "option[" << i << "]=" << option;
402 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800403 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800404 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700405 } else if (option == "-classpath" || option == "-cp") {
406 // TODO: support -Djava.class.path
407 i++;
408 if (i == options.size()) {
409 // TODO: usage
410 LOG(FATAL) << "Missing required class path value for " << option;
411 return NULL;
412 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800413 const StringPiece& value = options[i].first;
414 parsed->class_path_string_ = value.data();
415 } else if (option == "bootclasspath") {
416 parsed->boot_class_path_
417 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800418 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800419 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800420 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700421 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800422 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
423 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700424 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
425 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
426 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
427 return NULL;
428 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800429 } else if (StartsWith(option, "-Xms")) {
430 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700431 if (size == 0) {
432 if (ignore_unrecognized) {
433 continue;
434 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700435 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700436 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700437 return NULL;
438 }
439 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800440 } else if (StartsWith(option, "-Xmx")) {
441 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700442 if (size == 0) {
443 if (ignore_unrecognized) {
444 continue;
445 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700446 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700447 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700448 return NULL;
449 }
450 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800451 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
452 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700453 if (size == 0) {
454 if (ignore_unrecognized) {
455 continue;
456 }
457 // TODO: usage
458 LOG(FATAL) << "Failed to parse " << option;
459 return NULL;
460 }
461 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700462 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
463 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
464 if (size == 0) {
465 if (ignore_unrecognized) {
466 continue;
467 }
468 // TODO: usage
469 LOG(FATAL) << "Failed to parse " << option;
470 return NULL;
471 }
472 parsed->heap_min_free_ = size;
473 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
474 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
475 if (size == 0) {
476 if (ignore_unrecognized) {
477 continue;
478 }
479 // TODO: usage
480 LOG(FATAL) << "Failed to parse " << option;
481 return NULL;
482 }
483 parsed->heap_max_free_ = size;
484 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
485 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
486 double value;
487 iss >> value;
488 // 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 -0700489 const bool sane_val = iss.eof() && (value >= 0.1) && (value <= 0.9);
Mathieu Chartier0051be62012-10-12 17:47:11 -0700490 if (!sane_val) {
491 if (ignore_unrecognized) {
492 continue;
493 }
494 LOG(FATAL) << "Invalid option '" << option << "'";
495 return NULL;
496 }
497 parsed->heap_target_utilization_ = value;
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700498 } else if (StartsWith(option, "-XX:ParallelGCThreads=")) {
499 parsed->parallel_gc_threads_ =
500 ParseMemoryOption(option.substr(strlen("-XX:ParallelGCThreads=")).c_str(), 1024);
501 } else if (StartsWith(option, "-XX:ConcGCThreads=")) {
502 parsed->conc_gc_threads_ =
503 ParseMemoryOption(option.substr(strlen("-XX:ConcGCThreads=")).c_str(), 1024);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800504 } else if (StartsWith(option, "-Xss")) {
505 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700506 if (size == 0) {
507 if (ignore_unrecognized) {
508 continue;
509 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700510 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700511 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700512 return NULL;
513 }
514 parsed->stack_size_ = size;
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700515 } else if (StartsWith(option, "-XX:MaxSpinsBeforeThinLockInflation=")) {
516 parsed->max_spins_before_thin_lock_inflation_ =
517 strtoul(option.substr(strlen("-XX:MaxSpinsBeforeThinLockInflation=")).c_str(),
518 nullptr, 10);
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700519 } else if (option == "-XX:LongPauseLogThreshold") {
520 parsed->long_pause_log_threshold_ =
521 ParseMemoryOption(option.substr(strlen("-XX:LongPauseLogThreshold=")).c_str(), 1024);
522 } else if (option == "-XX:LongGCLogThreshold") {
523 parsed->long_gc_log_threshold_ =
524 ParseMemoryOption(option.substr(strlen("-XX:LongGCLogThreshold")).c_str(), 1024);
525 } else if (option == "-XX:IgnoreMaxFootprint") {
526 parsed->ignore_max_footprint_ = true;
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700527 } else if (option == "-XX:LowMemoryMode") {
528 parsed->low_memory_mode_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800529 } else if (StartsWith(option, "-D")) {
530 parsed->properties_.push_back(option.substr(strlen("-D")));
531 } else if (StartsWith(option, "-Xjnitrace:")) {
532 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700533 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800534 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700535 } else if (option == "-Xzygote") {
536 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800537 } else if (option == "-Xint") {
538 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700539 } else if (StartsWith(option, "-Xgc:")) {
540 std::vector<std::string> gc_options;
541 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
542 for (size_t i = 0; i < gc_options.size(); ++i) {
543 if (gc_options[i] == "noconcurrent") {
544 parsed->is_concurrent_gc_enabled_ = false;
545 } else if (gc_options[i] == "concurrent") {
546 parsed->is_concurrent_gc_enabled_ = true;
547 } else {
548 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
549 }
550 }
Anwar Ghuloum87183592013-08-14 12:12:19 -0700551 } else if (option == "-XX:+DisableExplicitGC") {
552 parsed->is_explicit_gc_disabled_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800553 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700554 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800555 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700556 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800557 if (verbose_options[i] == "class") {
558 gLogVerbosity.class_linker = true;
Anwar Ghuloum75a43f12013-08-13 17:22:14 -0700559 } else if (verbose_options[i] == "verifier") {
560 gLogVerbosity.verifier = true;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800561 } else if (verbose_options[i] == "compiler") {
562 gLogVerbosity.compiler = true;
563 } else if (verbose_options[i] == "heap") {
564 gLogVerbosity.heap = true;
565 } else if (verbose_options[i] == "gc") {
566 gLogVerbosity.gc = true;
567 } else if (verbose_options[i] == "jdwp") {
568 gLogVerbosity.jdwp = true;
569 } else if (verbose_options[i] == "jni") {
570 gLogVerbosity.jni = true;
571 } else if (verbose_options[i] == "monitor") {
572 gLogVerbosity.monitor = true;
573 } else if (verbose_options[i] == "startup") {
574 gLogVerbosity.startup = true;
575 } else if (verbose_options[i] == "third-party-jni") {
576 gLogVerbosity.third_party_jni = true;
577 } else if (verbose_options[i] == "threads") {
578 gLogVerbosity.threads = true;
579 } else {
580 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
581 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700582 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800583 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughes2010a602013-07-02 14:17:23 -0700584 // Silently ignored for backwards compatibility.
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800585 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700586 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800587 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700588 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700589 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700590 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700591 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700592 parsed->hook_vfprintf_ =
593 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700594 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700595 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700596 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700597 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700598 } else if (option == "host-prefix") {
599 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800600 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
601 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700602 } else if (option == "-Xmethod-trace") {
603 parsed->method_trace_ = true;
604 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
605 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
606 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
607 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700608 } else if (option == "-Xprofile:threadcpuclock") {
609 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
610 } else if (option == "-Xprofile:wallclock") {
611 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
612 } else if (option == "-Xprofile:dualclock") {
613 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
buzbeea024a062013-07-31 10:47:37 -0700614 } else if (option == "-compiler-filter:interpret-only") {
615 parsed->compiler_filter_ = kInterpretOnly;
buzbeea024a062013-07-31 10:47:37 -0700616 } else if (option == "-compiler-filter:space") {
617 parsed->compiler_filter_ = kSpace;
618 } else if (option == "-compiler-filter:balanced") {
619 parsed->compiler_filter_ = kBalanced;
620 } else if (option == "-compiler-filter:speed") {
621 parsed->compiler_filter_ = kSpeed;
buzbeefe9ca402013-08-21 09:48:11 -0700622 } else if (option == "-compiler-filter:everything") {
623 parsed->compiler_filter_ = kEverything;
Brian Carlstrom2ce745c2013-07-17 17:44:30 -0700624 } else if (option == "-sea_ir") {
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700625 parsed->sea_ir_mode_ = true;
buzbeea024a062013-07-31 10:47:37 -0700626 } else if (StartsWith(option, "-huge-method-max:")) {
627 parsed->huge_method_threshold_ = ParseIntegerOrDie(option);
628 } else if (StartsWith(option, "-large-method-max:")) {
629 parsed->large_method_threshold_ = ParseIntegerOrDie(option);
630 } else if (StartsWith(option, "-small-method-max:")) {
631 parsed->small_method_threshold_ = ParseIntegerOrDie(option);
632 } else if (StartsWith(option, "-tiny-method-max:")) {
633 parsed->tiny_method_threshold_ = ParseIntegerOrDie(option);
634 } else if (StartsWith(option, "-num-dex-methods-max:")) {
635 parsed->num_dex_methods_threshold_ = ParseIntegerOrDie(option);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700636 } else {
637 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700638 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700639 LOG(ERROR) << "Unrecognized option " << option;
640 // TODO: this should exit, but for now tolerate unknown options
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700641 // return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700642 }
643 }
644 }
645
Brian Carlstromfb67b722013-06-24 23:41:51 -0700646 // If a reference to the dalvik core.jar snuck in, replace it with
647 // the art specific version. This can happen with on device
648 // boot.art/boot.oat generation by GenerateImage which relies on the
649 // value of BOOTCLASSPATH.
650 std::string core_jar("/core.jar");
651 size_t core_jar_pos = parsed->boot_class_path_string_.find(core_jar);
652 if (core_jar_pos != std::string::npos) {
653 parsed->boot_class_path_string_.replace(core_jar_pos, core_jar.size(), "/core-libart.jar");
654 }
655
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800656 if (!parsed->is_compiler_ && parsed->image_.empty()) {
657 parsed->image_ += GetAndroidRoot();
658 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700659 }
jeffhaoc1160702011-10-27 15:48:45 -0700660 if (parsed->heap_growth_limit_ == 0) {
661 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
662 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700663
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700664 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700665}
666
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700667bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700668 // TODO: acquire a static mutex on Runtime to avoid racing.
669 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700670 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700671 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700672 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700673 instance_ = new Runtime;
674 if (!instance_->Init(options, ignore_unrecognized)) {
675 delete instance_;
676 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700677 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700678 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700679 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700680}
Elliott Hughes0af55432011-08-17 18:37:28 -0700681
Ian Rogers365c1022012-06-22 15:05:28 -0700682static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800683 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700684 return;
685 }
686
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700687 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700688
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800689 mirror::Class* class_loader_class =
690 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700691 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700692
Brian Carlstromea46f952013-07-30 01:26:50 -0700693 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800694 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700695 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700696
Jeff Hao5d917302013-02-27 17:57:33 -0800697 JValue result;
Jeff Hao5d917302013-02-27 17:57:33 -0800698 ArgArray arg_array(NULL, 0);
Jeff Hao6474d192013-03-26 14:08:09 -0700699 InvokeWithArgArray(soa, getSystemClassLoader, &arg_array, &result, 'L');
Jeff Hao5d917302013-02-27 17:57:33 -0800700 mirror::ClassLoader* class_loader = down_cast<mirror::ClassLoader*>(result.GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700701 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500702
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700703 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700704
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800705 mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700706 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
707
Brian Carlstromea46f952013-07-30 01:26:50 -0700708 mirror::ArtField* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
709 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500710 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700711
Ian Rogerscfaa4552012-11-26 21:00:08 -0800712 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700713}
714
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700715bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800716 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700717
718 CHECK(host_prefix_.empty()) << host_prefix_;
719
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700720 // Restore main thread state to kNative as expected by native code.
Ian Rogersa436fde2013-08-27 23:34:06 -0700721 Thread* self = Thread::Current();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700722 self->TransitionFromRunnableToSuspended(kNative);
723
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700724 started_ = true;
725
Brian Carlstromae826982011-11-09 01:33:42 -0800726 // InitNativeMethods needs to be after started_ so that the classes
727 // it touches will have methods linked to the oat file if necessary.
728 InitNativeMethods();
729
Ian Rogers365c1022012-06-22 15:05:28 -0700730 // Initialize well known thread group values that may be accessed threads while attaching.
731 InitThreadGroups(self);
732
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500733 Thread::FinishStartup();
734
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700735 if (is_zygote_) {
736 if (!InitZygote()) {
737 return false;
738 }
739 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700740 DidForkFromZygote();
741 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700742
Elliott Hughes85d15452011-09-16 17:33:01 -0700743 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700744
Brian Carlstromaded5f72011-10-07 17:15:04 -0700745 CreateSystemClassLoader();
746
Elliott Hughes225f5a12012-06-11 11:23:48 -0700747 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700748
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800749 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700750
751 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700752
753 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700754}
755
Ian Rogers120f1c72012-09-28 17:17:10 -0700756void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
757 DCHECK_GT(threads_being_born_, 0U);
758 threads_being_born_--;
759 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700760 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700761 }
762}
763
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700764// Do zygote-mode-only initialization.
765bool Runtime::InitZygote() {
766 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700767 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700768
769 // See storage config details at http://source.android.com/tech/storage/
770 // Create private mount namespace shared by all children
771 if (unshare(CLONE_NEWNS) == -1) {
772 PLOG(WARNING) << "Failed to unshare()";
773 return false;
774 }
775
776 // Mark rootfs as being a slave so that changes from default
777 // namespace only flow into our children.
778 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
779 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
780 return false;
781 }
782
783 // Create a staging tmpfs that is shared by our children; they will
784 // bind mount storage into their respective private namespaces, which
785 // are isolated from each other.
786 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
787 if (target_base != NULL) {
788 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
Jeff Sharkey52cd1e82013-09-17 16:25:12 -0700789 "uid=0,gid=1028,mode=0751") == -1) {
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700790 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
791 return false;
792 }
793 }
794
795 return true;
796}
797
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700798void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700799 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700800
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700801 // Create the thread pool.
802 heap_->CreateThreadPool();
803
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700804 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700805
806 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
807 // this will pause the runtime, so we probably want this to come last.
808 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700809}
810
811void Runtime::StartSignalCatcher() {
812 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700813 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700814 }
815}
816
Elliott Hughes85d15452011-09-16 17:33:01 -0700817void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800818 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700819
Elliott Hughes719b3232011-09-25 17:42:19 -0700820 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700821
822 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700823 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700824
Elliott Hughes719b3232011-09-25 17:42:19 -0700825 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700826 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
827 WellKnownClasses::java_lang_Daemons_start);
828 if (env->ExceptionCheck()) {
829 env->ExceptionDescribe();
830 LOG(FATAL) << "Error starting java.lang.Daemons";
831 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700832
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800833 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700834}
835
Elliott Hughes0af55432011-08-17 18:37:28 -0700836bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700837 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700838
Elliott Hughes90a33692011-08-30 13:27:07 -0700839 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
840 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700841 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700842 return false;
843 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800844 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700845
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700846 QuasiAtomic::Startup();
847
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800848 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700849
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700850 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800851 boot_class_path_string_ = options->boot_class_path_string_;
852 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700853 properties_ = options->properties_;
854
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800855 is_compiler_ = options->is_compiler_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700856 is_zygote_ = options->is_zygote_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700857 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700858 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700859
buzbeea024a062013-07-31 10:47:37 -0700860 compiler_filter_ = options->compiler_filter_;
861 huge_method_threshold_ = options->huge_method_threshold_;
862 large_method_threshold_ = options->large_method_threshold_;
863 small_method_threshold_ = options->small_method_threshold_;
864 tiny_method_threshold_ = options->tiny_method_threshold_;
865 num_dex_methods_threshold_ = options->num_dex_methods_threshold_;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700866
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700867 sea_ir_mode_ = options->sea_ir_mode_;
Elliott Hughes0af55432011-08-17 18:37:28 -0700868 vfprintf_ = options->hook_vfprintf_;
869 exit_ = options->hook_exit_;
870 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700871
Elliott Hughesbe759c62011-09-08 19:38:21 -0700872 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700873 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700874
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700875 max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_;
876
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700877 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800878 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700879 intern_table_ = new InternTable;
880
Logan Chiendd361c92012-04-10 23:40:37 +0800881
Ian Rogers62d6c772013-02-27 08:32:07 -0800882 if (options->interpreter_only_) {
883 GetInstrumentation()->ForceInterpretOnly();
884 }
885
Ian Rogers1d54e732013-05-02 21:10:01 -0700886 heap_ = new gc::Heap(options->heap_initial_size_,
887 options->heap_growth_limit_,
888 options->heap_min_free_,
889 options->heap_max_free_,
890 options->heap_target_utilization_,
891 options->heap_maximum_size_,
892 options->image_,
Mathieu Chartier63a54342013-07-23 13:17:59 -0700893 options->is_concurrent_gc_enabled_,
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700894 options->parallel_gc_threads_,
895 options->conc_gc_threads_,
896 options->low_memory_mode_,
897 options->long_pause_log_threshold_,
898 options->long_gc_log_threshold_,
899 options->ignore_max_footprint_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700900
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700901 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700902 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700903
Elliott Hughesa0957642011-09-02 14:27:33 -0700904 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700905
Elliott Hughesbe759c62011-09-08 19:38:21 -0700906 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700907
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800908 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
909 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
910 // thread, we do not get a java peer.
911 Thread* self = Thread::Attach("main", false, NULL, false);
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700912 CHECK_EQ(self->thin_lock_thread_id_, ThreadList::kMainThreadId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700913 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700914
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700915 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700916 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700917
Ian Rogersa436fde2013-08-27 23:34:06 -0700918 // Now we're attached, we can take the heap locks and validate the heap.
Ian Rogers141d6222012-04-05 12:23:06 -0700919 GetHeap()->EnableObjectValidation();
920
Ian Rogers1d54e732013-05-02 21:10:01 -0700921 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
922 if (GetHeap()->GetContinuousSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800923 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
924 } else {
925 CHECK(options->boot_class_path_ != NULL);
926 CHECK_NE(options->boot_class_path_->size(), 0U);
927 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
928 }
929 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800930 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700931
jeffhaob5e81852012-03-12 11:15:45 -0700932 method_trace_ = options->method_trace_;
933 method_trace_file_ = options->method_trace_file_;
934 method_trace_file_size_ = options->method_trace_file_size_;
935
936 if (options->method_trace_) {
Jeff Hao23009dc2013-08-22 15:36:42 -0700937 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0,
938 false, false, 0);
jeffhaob5e81852012-03-12 11:15:45 -0700939 }
940
Ian Rogersa436fde2013-08-27 23:34:06 -0700941 // Pre-allocate an OutOfMemoryError for the double-OOME case.
942 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
943 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
944 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
945 self->ClearException();
946
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800947 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700948 return true;
949}
950
Elliott Hughes038a8062011-09-18 14:12:41 -0700951void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800952 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700953 Thread* self = Thread::Current();
954 JNIEnv* env = self->GetJniEnv();
955
Elliott Hughes418d20f2011-09-22 14:00:39 -0700956 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700957 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700958
Elliott Hughes418d20f2011-09-22 14:00:39 -0700959 // First set up JniConstants, which is used by both the runtime's built-in native
960 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700961 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700962 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700963
Elliott Hughes418d20f2011-09-22 14:00:39 -0700964 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700965 RegisterRuntimeNativeMethods(env);
966
Elliott Hughes418d20f2011-09-22 14:00:39 -0700967 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
968 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
969 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700970 {
971 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
972 std::string reason;
973 self->TransitionFromSuspendedToRunnable();
974 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
975 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
976 }
977 self->TransitionFromRunnableToSuspended(kNative);
978 }
Ian Rogersef28b142012-11-30 14:22:18 -0800979
980 // Initialize well known classes that may invoke runtime native methods.
981 WellKnownClasses::LateInit(env);
982
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800983 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700984}
985
Ian Rogers365c1022012-06-22 15:05:28 -0700986void Runtime::InitThreadGroups(Thread* self) {
987 JNIEnvExt* env = self->GetJniEnv();
988 ScopedJniEnvLocalRefState env_state(env);
989 main_thread_group_ =
990 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
991 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700992 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700993 system_thread_group_ =
994 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
995 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700996 CHECK(system_thread_group_ != NULL || IsCompiler());
997}
998
999jobject Runtime::GetMainThreadGroup() const {
1000 CHECK(main_thread_group_ != NULL || IsCompiler());
1001 return main_thread_group_;
1002}
1003
1004jobject Runtime::GetSystemThreadGroup() const {
1005 CHECK(system_thread_group_ != NULL || IsCompiler());
1006 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -07001007}
1008
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001009void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
1010#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -08001011 // Register Throwable first so that registration of other native methods can throw exceptions
1012 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -07001013 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001014 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -07001015 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -07001016 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -07001017 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -07001018 REGISTER(register_java_lang_Class);
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001019 REGISTER(register_java_lang_DexCache);
Elliott Hughesbf86d042011-08-31 17:53:14 -07001020 REGISTER(register_java_lang_Object);
1021 REGISTER(register_java_lang_Runtime);
1022 REGISTER(register_java_lang_String);
1023 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -07001024 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -07001025 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -07001026 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -07001027 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -07001028 REGISTER(register_java_lang_reflect_Field);
1029 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -04001030 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -07001031 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -07001032 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -07001033 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -07001034 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001035#undef REGISTER
1036}
1037
Elliott Hughesc967f782012-04-16 10:23:15 -07001038void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -07001039 GetClassLinker()->DumpForSigQuit(os);
1040 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -07001041 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -07001042 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -07001043 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -07001044
Elliott Hughesc967f782012-04-16 10:23:15 -07001045 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -08001046 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -07001047}
1048
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001049void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -07001050 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001051 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
1052 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
1053 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001054 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
1055 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001056 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
1057 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
1058 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
1059 }
1060}
1061
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001062void Runtime::SetStatsEnabled(bool new_state) {
1063 if (new_state == true) {
1064 GetStats()->Clear(~0);
1065 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1066 Thread::Current()->GetStats()->Clear(~0);
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -07001067 InstrumentQuickAllocEntryPoints();
1068 } else {
1069 UninstrumentQuickAllocEntryPoints();
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001070 }
1071 stats_enabled_ = new_state;
1072}
1073
1074void Runtime::ResetStats(int kinds) {
1075 GetStats()->Clear(kinds & 0xffff);
1076 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1077 Thread::Current()->GetStats()->Clear(kinds >> 16);
1078}
1079
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001080int32_t Runtime::GetStat(int kind) {
1081 RuntimeStats* stats;
1082 if (kind < (1<<16)) {
1083 stats = GetStats();
1084 } else {
1085 stats = Thread::Current()->GetStats();
1086 kind >>= 16;
1087 }
1088 switch (kind) {
1089 case KIND_ALLOCATED_OBJECTS:
1090 return stats->allocated_objects;
1091 case KIND_ALLOCATED_BYTES:
1092 return stats->allocated_bytes;
1093 case KIND_FREED_OBJECTS:
1094 return stats->freed_objects;
1095 case KIND_FREED_BYTES:
1096 return stats->freed_bytes;
1097 case KIND_GC_INVOCATIONS:
1098 return stats->gc_for_alloc_count;
1099 case KIND_CLASS_INIT_COUNT:
1100 return stats->class_init_count;
1101 case KIND_CLASS_INIT_TIME:
1102 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -07001103 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001104 case KIND_EXT_ALLOCATED_OBJECTS:
1105 case KIND_EXT_ALLOCATED_BYTES:
1106 case KIND_EXT_FREED_OBJECTS:
1107 case KIND_EXT_FREED_BYTES:
1108 return 0; // backward compatibility
1109 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -07001110 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -07001111 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001112 }
1113}
1114
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001115void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -07001116 SignalSet signals;
1117 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001118 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -07001119 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -07001120 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -07001121 signals.Add(SIGUSR1);
1122 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001123}
1124
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001125bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
1126 bool create_peer) {
1127 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -07001128 if (thread_name == NULL) {
1129 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1130 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001131 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001132}
1133
Elliott Hughesd92bec42011-09-02 17:04:36 -07001134void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001135 Thread* self = Thread::Current();
1136 if (self == NULL) {
1137 LOG(FATAL) << "attempting to detach thread that is not attached";
1138 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001139 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001140 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1141 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001142 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001143}
1144
Ian Rogersa436fde2013-08-27 23:34:06 -07001145 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const {
1146 if (pre_allocated_OutOfMemoryError_ == NULL) {
1147 LOG(ERROR) << "Failed to return pre-allocated OOME";
1148 }
1149 return pre_allocated_OutOfMemoryError_;
1150}
1151
Ian Rogers1d54e732013-05-02 21:10:01 -07001152void Runtime::VisitConcurrentRoots(RootVisitor* visitor, void* arg, bool only_dirty,
1153 bool clean_dirty) {
Mathieu Chartierc4621982013-09-16 19:43:47 -07001154 intern_table_->VisitRoots(visitor, arg, only_dirty, clean_dirty);
1155 class_linker_->VisitRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001156}
1157
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001158void Runtime::VisitNonThreadRoots(RootVisitor* visitor, void* arg) {
Brian Carlstrome24fa612011-09-29 00:53:55 -07001159 java_vm_->VisitRoots(visitor, arg);
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001160 if (pre_allocated_OutOfMemoryError_ != nullptr) {
1161 pre_allocated_OutOfMemoryError_ = reinterpret_cast<mirror::Throwable*>(
1162 visitor(pre_allocated_OutOfMemoryError_, arg));
1163 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001164 }
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001165 resolution_method_ = reinterpret_cast<mirror::ArtMethod*>(visitor(resolution_method_, arg));
1166 DCHECK(resolution_method_ != nullptr);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001167 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001168 callee_save_methods_[i] = reinterpret_cast<mirror::ArtMethod*>(
1169 visitor(callee_save_methods_[i], arg));
1170 DCHECK(callee_save_methods_[i] != nullptr);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001171 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001172}
1173
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001174void Runtime::VisitNonConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001175 thread_list_->VisitRoots(visitor, arg);
1176 VisitNonThreadRoots(visitor, arg);
1177}
1178
Ian Rogers1d54e732013-05-02 21:10:01 -07001179void Runtime::VisitRoots(RootVisitor* visitor, void* arg, bool only_dirty, bool clean_dirty) {
1180 VisitConcurrentRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001181 VisitNonConcurrentRoots(visitor, arg);
1182}
1183
Brian Carlstromea46f952013-07-30 01:26:50 -07001184mirror::ArtMethod* Runtime::CreateResolutionMethod() {
1185 mirror::Class* method_class = mirror::ArtMethod::GetJavaLangReflectArtMethod();
Ian Rogers50b35e22012-10-04 10:09:15 -07001186 Thread* self = Thread::Current();
Brian Carlstromea46f952013-07-30 01:26:50 -07001187 SirtRef<mirror::ArtMethod>
1188 method(self, down_cast<mirror::ArtMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001189 method->SetDeclaringClass(method_class);
1190 // TODO: use a special method for resolution method saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001191 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Hao58df3272013-04-22 15:28:53 -07001192 // When compiling, the code pointer will get set later when the image is loaded.
Jeff Hao0aba0ba2013-06-03 14:49:28 -07001193 Runtime* r = Runtime::Current();
1194 ClassLinker* cl = r->GetClassLinker();
1195 method->SetEntryPointFromCompiledCode(r->IsCompiler() ? NULL : GetResolutionTrampoline(cl));
Ian Rogers19846512012-02-24 11:42:47 -08001196 return method.get();
1197}
1198
Brian Carlstromea46f952013-07-30 01:26:50 -07001199mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001200 CalleeSaveType type) {
Brian Carlstromea46f952013-07-30 01:26:50 -07001201 mirror::Class* method_class = mirror::ArtMethod::GetJavaLangReflectArtMethod();
Ian Rogers50b35e22012-10-04 10:09:15 -07001202 Thread* self = Thread::Current();
Brian Carlstromea46f952013-07-30 01:26:50 -07001203 SirtRef<mirror::ArtMethod>
1204 method(self, down_cast<mirror::ArtMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001205 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001206 // TODO: use a special method for callee saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001207 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Haoaa4a7932013-05-13 11:28:27 -07001208 method->SetEntryPointFromCompiledCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001209 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001210 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1211 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1212 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1213 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001214 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1215 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001216 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1217 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1218 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1219 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1220 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1221 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1222 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1223 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1224 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1225 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1226 (1 << art::arm::S30) | (1 << art::arm::S31);
1227 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1228 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1229 __builtin_popcount(fp_spills) /* fprs */ +
1230 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001231 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001232 method->SetCoreSpillMask(core_spills);
1233 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001234 } else if (instruction_set == kMips) {
1235 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1236 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001237 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -07001238 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001239 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001240 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001241 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001242 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001243 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
1244 kPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001245 method->SetFrameSizeInBytes(frame_size);
1246 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001247 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001248 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001249 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1250 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1251 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1252 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1253 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1254 1 /* Method* */) * kPointerSize, kStackAlignment);
1255 method->SetFrameSizeInBytes(frame_size);
1256 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001257 method->SetFpSpillMask(0);
1258 } else {
1259 UNIMPLEMENTED(FATAL);
1260 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001261 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001262}
1263
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001264void Runtime::DisallowNewSystemWeaks() {
1265 monitor_list_->DisallowNewMonitors();
1266 intern_table_->DisallowNewInterns();
1267 java_vm_->DisallowNewWeakGlobals();
1268}
1269
1270void Runtime::AllowNewSystemWeaks() {
1271 monitor_list_->AllowNewMonitors();
1272 intern_table_->AllowNewInterns();
1273 java_vm_->AllowNewWeakGlobals();
1274}
1275
Brian Carlstromea46f952013-07-30 01:26:50 -07001276void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001277 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001278 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001279}
1280
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001281const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001282 if (class_loader == NULL) {
1283 return GetClassLinker()->GetBootClassPath();
1284 }
1285 CHECK(UseCompileTimeClassPath());
1286 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1287 CHECK(it != compile_time_class_paths_.end());
1288 return it->second;
1289}
1290
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001291void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001292 CHECK(!IsStarted());
1293 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001294 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001295}
1296
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -07001297static void ResetQuickAllocEntryPointsForThread(Thread* thread, void* arg) {
1298 thread->ResetQuickAllocEntryPointsForThread();
1299}
1300
1301void SetQuickAllocEntryPointsInstrumented(bool instrumented);
1302
1303void Runtime::InstrumentQuickAllocEntryPoints() {
1304 ThreadList* tl = thread_list_;
1305 Thread* self = Thread::Current();
1306 tl->SuspendAll();
1307 {
1308 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
1309 MutexLock mu2(self, *Locks::thread_list_lock_);
1310 DCHECK_LE(quick_alloc_entry_points_instrumentation_counter_, 0);
1311 int old_counter = quick_alloc_entry_points_instrumentation_counter_++;
1312 if (old_counter == 0) {
1313 // If it was disabled, enable it.
1314 SetQuickAllocEntryPointsInstrumented(true);
1315 tl->ForEach(ResetQuickAllocEntryPointsForThread, NULL);
1316 }
1317 }
1318 tl->ResumeAll();
1319}
1320
1321void Runtime::UninstrumentQuickAllocEntryPoints() {
1322 ThreadList* tl = thread_list_;
1323 Thread* self = Thread::Current();
1324 tl->SuspendAll();
1325 {
1326 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
1327 MutexLock mu2(self, *Locks::thread_list_lock_);
1328 DCHECK_LT(quick_alloc_entry_points_instrumentation_counter_, 0);
1329 int new_counter = --quick_alloc_entry_points_instrumentation_counter_;
1330 if (new_counter == 0) {
1331 // Disable it if the counter becomes zero.
1332 SetQuickAllocEntryPointsInstrumented(false);
1333 tl->ForEach(ResetQuickAllocEntryPointsForThread, NULL);
1334 }
1335 }
1336 tl->ResumeAll();
1337}
1338
Carl Shapiro1fb86202011-06-27 17:43:13 -07001339} // namespace art