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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 Carlstromdbf05b72011-12-15 00:55:24 -080019#include <signal.h>
Elliott Hughesd06a6c72012-05-30 17:59:06 -070020#include <sys/syscall.h>
Brian Carlstromdbf05b72011-12-15 00:55:24 -080021
Elliott Hughesffe67362011-07-17 12:09:27 -070022#include <cstdio>
23#include <cstdlib>
Brian Carlstrom8a436592011-08-15 21:27:23 -070024#include <limits>
Carl Shapiro2ed144c2011-07-26 16:52:08 -070025#include <vector>
Elliott Hughesffe67362011-07-17 12:09:27 -070026
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070027#include "class_linker.h"
Brian Carlstromaded5f72011-10-07 17:15:04 -070028#include "class_loader.h"
Elliott Hughes0f3c5532012-03-30 14:51:51 -070029#include "constants_arm.h"
jeffhao7fbee072012-08-24 17:56:54 -070030#include "constants_mips.h"
Elliott Hughes0f3c5532012-03-30 14:51:51 -070031#include "constants_x86.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070032#include "debugger.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070033#include "heap.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070034#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080035#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070036#include "intern_table.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070037#include "jni_internal.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070038#include "monitor.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070039#include "oat_file.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070040#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070041#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070042#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070043#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070044#include "sirt_ref.h"
Mathieu Chartier7469ebf2012-09-24 16:28:36 -070045#include "gc/space.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070046#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070047#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070048#include "trace.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070049#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070050#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070051#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070052
Logan Chien971bf3f2012-05-01 15:47:55 +080053#if defined(ART_USE_LLVM_COMPILER)
54#include "compiler_llvm/procedure_linkage_table.h"
55#endif
56
Elliott Hugheseac76672012-05-24 21:56:51 -070057#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070058
Carl Shapiro1fb86202011-06-27 17:43:13 -070059namespace art {
60
Carl Shapiro2ed144c2011-07-26 16:52:08 -070061Runtime* Runtime::instance_ = NULL;
62
Elliott Hughesdcc24742011-09-07 14:02:44 -070063Runtime::Runtime()
Elliott Hughesd9c67be2012-02-02 19:54:06 -080064 : is_compiler_(false),
65 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070066 is_concurrent_gc_enabled_(true),
Elliott Hughes6cf23882012-06-15 15:42:07 -070067 default_stack_size_(0),
Elliott Hughesb3bd5f02012-03-08 21:05:27 -080068 heap_(NULL),
Elliott Hughesc33a32b2011-10-11 18:18:07 -070069 monitor_list_(NULL),
Elliott Hughesdcc24742011-09-07 14:02:44 -070070 thread_list_(NULL),
71 intern_table_(NULL),
72 class_linker_(NULL),
73 signal_catcher_(NULL),
74 java_vm_(NULL),
Elliott Hughes225f5a12012-06-11 11:23:48 -070075 pre_allocated_OutOfMemoryError_(NULL),
Brian Carlstrom16192862011-09-12 17:50:06 -070076 jni_stub_array_(NULL),
Brian Carlstrome24fa612011-09-29 00:53:55 -070077 abstract_method_error_stub_array_(NULL),
Ian Rogers19846512012-02-24 11:42:47 -080078 resolution_method_(NULL),
Ian Rogers7c3757f2012-02-15 17:18:53 -080079 system_class_loader_(NULL),
Ian Rogers120f1c72012-09-28 17:17:10 -070080 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -070081 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -080082 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -070083 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070084 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -070085 finished_starting_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070086 vfprintf_(NULL),
87 exit_(NULL),
Elliott Hughes9d5ccec2011-09-19 13:19:50 -070088 abort_(NULL),
jeffhao2692b572011-12-16 15:42:28 -080089 stats_enabled_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -070090 method_trace_(0),
91 method_trace_file_size_(0),
jeffhao725a9572012-11-13 18:20:12 -080092 instrumentation_(NULL),
Ian Rogers365c1022012-06-22 15:05:28 -070093 use_compile_time_class_path_(false),
94 main_thread_group_(NULL),
Logan Chien971bf3f2012-05-01 15:47:55 +080095 system_thread_group_(NULL)
96#if defined(ART_USE_LLVM_COMPILER)
97#if defined(__arm__)
98 , plt_(kArm)
99#elif defined(__mips__)
100 , plt_(kMips)
101#elif defined(__i386__)
102 , plt_(kX86)
103#endif
104#endif
105 {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700106 for (int i = 0; i < Runtime::kLastTrampolineMethodType; i++) {
107 resolution_stub_array_[i] = NULL;
108 }
109 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -0700110 callee_save_methods_[i] = NULL;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700111 }
Logan Chien971bf3f2012-05-01 15:47:55 +0800112
113#if defined(ART_USE_LLVM_COMPILER)
114 CHECK(plt_.AllocateTable()) << "Failed to allocate PLT";
115#endif
Elliott Hughesdcc24742011-09-07 14:02:44 -0700116}
117
Carl Shapiro61e019d2011-07-14 16:53:09 -0700118Runtime::~Runtime() {
Ian Rogers120f1c72012-09-28 17:17:10 -0700119 Thread* self = Thread::Current();
120 {
121 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
122 shutting_down_started_ = true;
123 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700124 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700125 }
126 shutting_down_ = true;
127 }
Elliott Hughes6b355752012-01-13 16:49:08 -0800128
jeffhaob5e81852012-03-12 11:15:45 -0700129 if (IsMethodTracingActive()) {
130 Trace::Shutdown();
131 }
jeffhao725a9572012-11-13 18:20:12 -0800132 delete instrumentation_;
jeffhaob5e81852012-03-12 11:15:45 -0700133
Mathieu Chartiera6399032012-06-11 18:49:50 -0700134 // Make sure to let the GC complete if it is running.
Ian Rogers120f1c72012-09-28 17:17:10 -0700135 heap_->WaitForConcurrentGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800136 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700137
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700138 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700139 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700140 delete signal_catcher_;
141
Elliott Hughes038a8062011-09-18 14:12:41 -0700142 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700143 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700144 delete monitor_list_;
Elliott Hughes93e74e82011-09-13 11:07:03 -0700145
Carl Shapiro61e019d2011-07-14 16:53:09 -0700146 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800147 delete heap_;
Elliott Hughes0a1038b2012-06-14 16:24:17 -0700148 verifier::MethodVerifier::Shutdown();
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700149 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700150 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700151 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700152 QuasiAtomic::Shutdown();
153
Carl Shapiro4acf4642011-07-26 18:54:13 -0700154 // TODO: acquire a static mutex on Runtime to avoid racing.
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700155 CHECK(instance_ == NULL || instance_ == this);
Carl Shapiro4acf4642011-07-26 18:54:13 -0700156 instance_ = NULL;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700157}
158
Elliott Hughese0918552011-10-28 17:18:29 -0700159struct AbortState {
160 void Dump(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700161 if (gAborting) {
162 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
163 return;
164 }
165 gAborting = true;
Elliott Hughese0918552011-10-28 17:18:29 -0700166 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800167 if (Runtime::Current() == NULL) {
168 os << "(Runtime does not yet exist!)\n";
169 return;
170 }
Elliott Hughese0918552011-10-28 17:18:29 -0700171 Thread* self = Thread::Current();
172 if (self == NULL) {
173 os << "(Aborting thread was not attached to runtime!)\n";
174 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700175 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
176 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
177 // The code below should be made robust to this.
178 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700179 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800180 self->Dump(os);
181 if (self->IsExceptionPending()) {
182 os << "Pending " << PrettyTypeOf(self->GetException()) << " on thread:\n"
183 << self->GetException()->Dump();
184 }
Elliott Hughese0918552011-10-28 17:18:29 -0700185 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700186 DumpAllThreads(os, self);
187 }
188
189 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
190 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
191 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700192 if (!tll_already_held || !ml_already_held) {
193 os << "Dumping all threads without appropriate locks held:"
194 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700195 << (!ml_already_held ? " mutator lock" : "")
196 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700197 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700198 os << "All threads:\n";
199 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700200 }
201};
202
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700203void Runtime::Abort() {
Brian Carlstrom81b88712012-11-05 19:21:30 -0800204 gAborting = true; // set before taking any locks
205
Elliott Hughes131aef82012-01-27 11:53:35 -0800206 // Ensure that we don't have multiple threads trying to abort at once,
207 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700208 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800209
Elliott Hughesffe67362011-07-17 12:09:27 -0700210 // Get any pending output out of the way.
211 fflush(NULL);
212
213 // Many people have difficulty distinguish aborts from crashes,
214 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700215 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800216 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700217
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700218 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700219 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700220 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700221 Runtime::Current()->abort_();
222 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700223 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700224 }
225
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700226#if defined(__BIONIC__)
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700227 // TODO: finish merging patches to fix abort(3) in bionic, then lose this!
228 // Bionic doesn't implement POSIX semantics for abort(3) in a multi-threaded
229 // process, so if we call abort(3) on a device, all threads in the process
Carl Shapiro69759ea2011-07-21 18:13:35 -0700230 // receive SIGABRT. debuggerd dumps the stack trace of the main
231 // thread, whether or not that was the thread that failed. By
232 // stuffing a value into a bogus address, we cause a segmentation
Elliott Hughesffe67362011-07-17 12:09:27 -0700233 // fault in the current thread, and get a useful log from debuggerd.
Elliott Hughes81ff3182012-03-23 20:35:56 -0700234 // We can also trivially tell the difference between a crash and
Elliott Hughesffe67362011-07-17 12:09:27 -0700235 // a deliberate abort by looking at the fault address.
236 *reinterpret_cast<char*>(0xdeadd00d) = 38;
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700237#elif defined(__APPLE__)
238 // TODO: check that this actually gives good stack traces on the Mac!
239 pthread_kill(pthread_self(), SIGABRT);
240#else
241 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
242 // which POSIX defines in terms of raise(3), which POSIX defines in terms
243 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
244 // libpthread, which means the stacks we dump would be useless. Calling
245 // tgkill(2) directly avoids that.
246 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
247#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700248 // notreached
249}
250
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700251bool Runtime::PreZygoteFork() {
252 heap_->PreZygoteFork();
253 return true;
254}
255
Elliott Hughesbf86d042011-08-31 17:53:14 -0700256void Runtime::CallExitHook(jint status) {
257 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700258 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700259 exit_(status);
260 LOG(WARNING) << "Exit hook returned instead of exiting!";
261 }
262}
263
Brian Carlstrom8a436592011-08-15 21:27:23 -0700264// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
265// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
266// [gG] gigabytes.
267//
268// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700269// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
270// of 1024.
271//
272// The spec says the -Xmx and -Xms options must be multiples of 1024. It
273// doesn't say anything about -Xss.
274//
275// Returns 0 (a useless size) if "s" is malformed or specifies a low or
276// non-evenly-divisible value.
277//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800278size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700279 // strtoul accepts a leading [+-], which we don't want,
280 // so make sure our string starts with a decimal digit.
281 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700282 char* s2;
283 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700284 if (s2 != s) {
285 // s2 should be pointing just after the number.
286 // If this is the end of the string, the user
287 // has specified a number of bytes. Otherwise,
288 // there should be exactly one more character
289 // that specifies a multiplier.
290 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700291 // The remainder of the string is either a single multiplier
292 // character, or nothing to indicate that the value is in
293 // bytes.
294 char c = *s2++;
295 if (*s2 == '\0') {
296 size_t mul;
297 if (c == '\0') {
298 mul = 1;
299 } else if (c == 'k' || c == 'K') {
300 mul = KB;
301 } else if (c == 'm' || c == 'M') {
302 mul = MB;
303 } else if (c == 'g' || c == 'G') {
304 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700305 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700306 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700307 return 0;
308 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700309
310 if (val <= std::numeric_limits<size_t>::max() / mul) {
311 val *= mul;
312 } else {
313 // Clamp to a multiple of 1024.
314 val = std::numeric_limits<size_t>::max() & ~(1024-1);
315 }
316 } else {
317 // There's more than one character after the numeric part.
318 return 0;
319 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700320 }
321 // The man page says that a -Xm value must be a multiple of 1024.
322 if (val % div == 0) {
323 return val;
324 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700325 }
326 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700327 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700328}
329
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800330size_t ParseIntegerOrDie(const std::string& s) {
331 std::string::size_type colon = s.find(':');
332 if (colon == std::string::npos) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700333 LOG(FATAL) << "Missing integer: " << s;
334 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800335 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700336 char* end;
337 size_t result = strtoul(begin, &end, 10);
338 if (begin == end || *end != '\0') {
339 LOG(FATAL) << "Failed to parse integer in: " << s;
340 }
341 return result;
342}
343
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700344Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700345 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800346 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
347 if (boot_class_path_string != NULL) {
348 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700349 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800350 const char* class_path_string = getenv("CLASSPATH");
351 if (class_path_string != NULL) {
352 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700353 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700354 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
355 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700356
Mathieu Chartier0051be62012-10-12 17:47:11 -0700357 parsed->heap_initial_size_ = Heap::kDefaultInitialSize;
358 parsed->heap_maximum_size_ = Heap::kDefaultMaximumSize;
359 parsed->heap_min_free_ = Heap::kDefaultMinFree;
360 parsed->heap_max_free_ = Heap::kDefaultMaxFree;
361 parsed->heap_target_utilization_ = Heap::kDefaultTargetUtilization;
Elliott Hughes6cf23882012-06-15 15:42:07 -0700362 parsed->heap_growth_limit_ = 0; // 0 means no growth limit.
363 parsed->stack_size_ = 0; // 0 means default.
Brian Carlstromf734cf52011-08-17 16:28:14 -0700364
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800365 parsed->is_compiler_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700366 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800367 parsed->interpreter_only_ = false;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700368 parsed->is_concurrent_gc_enabled_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700369
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700370 parsed->jni_globals_max_ = 0;
Elliott Hughesfc861622011-10-17 17:57:47 -0700371 parsed->lock_profiling_threshold_ = 0;
372 parsed->hook_is_sensitive_thread_ = NULL;
373
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700374 parsed->hook_vfprintf_ = vfprintf;
375 parsed->hook_exit_ = exit;
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700376 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700377
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800378// gLogVerbosity.class_linker = true; // TODO: don't check this in!
379// gLogVerbosity.compiler = true; // TODO: don't check this in!
380// gLogVerbosity.heap = true; // TODO: don't check this in!
381// gLogVerbosity.gc = true; // TODO: don't check this in!
382// gLogVerbosity.jdwp = true; // TODO: don't check this in!
383// gLogVerbosity.jni = true; // TODO: don't check this in!
384// gLogVerbosity.monitor = true; // TODO: don't check this in!
385// gLogVerbosity.startup = true; // TODO: don't check this in!
386// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
387// gLogVerbosity.threads = true; // TODO: don't check this in!
388
jeffhaob5e81852012-03-12 11:15:45 -0700389 parsed->method_trace_ = false;
390 parsed->method_trace_file_ = "/data/method-trace-file.bin";
391 parsed->method_trace_file_size_ = 10 * MB;
392
Brian Carlstrom8a436592011-08-15 21:27:23 -0700393 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800394 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700395 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700396 LOG(INFO) << "option[" << i << "]=" << option;
397 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800398 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800399 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700400 } else if (option == "-classpath" || option == "-cp") {
401 // TODO: support -Djava.class.path
402 i++;
403 if (i == options.size()) {
404 // TODO: usage
405 LOG(FATAL) << "Missing required class path value for " << option;
406 return NULL;
407 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800408 const StringPiece& value = options[i].first;
409 parsed->class_path_string_ = value.data();
410 } else if (option == "bootclasspath") {
411 parsed->boot_class_path_
412 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800413 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800414 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800415 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700416 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800417 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
418 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700419 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
420 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
421 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
422 return NULL;
423 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800424 } else if (StartsWith(option, "-Xms")) {
425 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700426 if (size == 0) {
427 if (ignore_unrecognized) {
428 continue;
429 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700430 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700431 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700432 return NULL;
433 }
434 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800435 } else if (StartsWith(option, "-Xmx")) {
436 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700437 if (size == 0) {
438 if (ignore_unrecognized) {
439 continue;
440 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700441 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700442 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700443 return NULL;
444 }
445 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800446 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
447 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700448 if (size == 0) {
449 if (ignore_unrecognized) {
450 continue;
451 }
452 // TODO: usage
453 LOG(FATAL) << "Failed to parse " << option;
454 return NULL;
455 }
456 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700457 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
458 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
459 if (size == 0) {
460 if (ignore_unrecognized) {
461 continue;
462 }
463 // TODO: usage
464 LOG(FATAL) << "Failed to parse " << option;
465 return NULL;
466 }
467 parsed->heap_min_free_ = size;
468 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
469 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
470 if (size == 0) {
471 if (ignore_unrecognized) {
472 continue;
473 }
474 // TODO: usage
475 LOG(FATAL) << "Failed to parse " << option;
476 return NULL;
477 }
478 parsed->heap_max_free_ = size;
479 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
480 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
481 double value;
482 iss >> value;
483 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range.
484 const bool sane_val = iss.good() && (value >= 0.1) && (value <= 0.9);
485 if (!sane_val) {
486 if (ignore_unrecognized) {
487 continue;
488 }
489 LOG(FATAL) << "Invalid option '" << option << "'";
490 return NULL;
491 }
492 parsed->heap_target_utilization_ = value;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800493 } else if (StartsWith(option, "-Xss")) {
494 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700495 if (size == 0) {
496 if (ignore_unrecognized) {
497 continue;
498 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700499 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700500 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700501 return NULL;
502 }
503 parsed->stack_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800504 } else if (StartsWith(option, "-D")) {
505 parsed->properties_.push_back(option.substr(strlen("-D")));
506 } else if (StartsWith(option, "-Xjnitrace:")) {
507 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700508 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800509 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700510 } else if (option == "-Xzygote") {
511 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800512 } else if (option == "-Xint") {
513 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700514 } else if (StartsWith(option, "-Xgc:")) {
515 std::vector<std::string> gc_options;
516 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
517 for (size_t i = 0; i < gc_options.size(); ++i) {
518 if (gc_options[i] == "noconcurrent") {
519 parsed->is_concurrent_gc_enabled_ = false;
520 } else if (gc_options[i] == "concurrent") {
521 parsed->is_concurrent_gc_enabled_ = true;
522 } else {
523 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
524 }
525 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800526 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700527 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800528 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700529 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800530 if (verbose_options[i] == "class") {
531 gLogVerbosity.class_linker = true;
532 } else if (verbose_options[i] == "compiler") {
533 gLogVerbosity.compiler = true;
534 } else if (verbose_options[i] == "heap") {
535 gLogVerbosity.heap = true;
536 } else if (verbose_options[i] == "gc") {
537 gLogVerbosity.gc = true;
538 } else if (verbose_options[i] == "jdwp") {
539 gLogVerbosity.jdwp = true;
540 } else if (verbose_options[i] == "jni") {
541 gLogVerbosity.jni = true;
542 } else if (verbose_options[i] == "monitor") {
543 gLogVerbosity.monitor = true;
544 } else if (verbose_options[i] == "startup") {
545 gLogVerbosity.startup = true;
546 } else if (verbose_options[i] == "third-party-jni") {
547 gLogVerbosity.third_party_jni = true;
548 } else if (verbose_options[i] == "threads") {
549 gLogVerbosity.threads = true;
550 } else {
551 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
552 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700553 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800554 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700555 parsed->jni_globals_max_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800556 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700557 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800558 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700559 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700560 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700561 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700562 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700563 parsed->hook_vfprintf_ =
564 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700565 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700566 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700567 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700568 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700569 } else if (option == "host-prefix") {
570 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800571 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
572 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700573 } else if (option == "-Xmethod-trace") {
574 parsed->method_trace_ = true;
575 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
576 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
577 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
578 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700579 } else if (option == "-Xprofile:threadcpuclock") {
580 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
581 } else if (option == "-Xprofile:wallclock") {
582 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
583 } else if (option == "-Xprofile:dualclock") {
584 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700585 } else {
586 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700587 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700588 LOG(ERROR) << "Unrecognized option " << option;
589 // TODO: this should exit, but for now tolerate unknown options
590 //return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700591 }
592 }
593 }
594
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800595 if (!parsed->is_compiler_ && parsed->image_.empty()) {
596 parsed->image_ += GetAndroidRoot();
597 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700598 }
jeffhaoc1160702011-10-27 15:48:45 -0700599 if (parsed->heap_growth_limit_ == 0) {
600 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
601 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700602
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700603 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700604}
605
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700606bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700607 // TODO: acquire a static mutex on Runtime to avoid racing.
608 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700609 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700610 }
Ian Rogersb726dcb2012-09-05 08:57:23 -0700611 Locks::Init();
Elliott Hughesdcc24742011-09-07 14:02:44 -0700612 instance_ = new Runtime;
613 if (!instance_->Init(options, ignore_unrecognized)) {
614 delete instance_;
615 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700616 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700617 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700618 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700619}
Elliott Hughes0af55432011-08-17 18:37:28 -0700620
Ian Rogers365c1022012-06-22 15:05:28 -0700621static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800622 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700623 return;
624 }
625
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700626 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700627
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700628 Class* class_loader_class = soa.Decode<Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700629 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700630
Mathieu Chartier66f19252012-09-18 08:57:04 -0700631 AbstractMethod* getSystemClassLoader = class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700632 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700633
Ian Rogers365c1022012-06-22 15:05:28 -0700634 ClassLoader* class_loader =
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700635 down_cast<ClassLoader*>(InvokeWithJValues(soa, NULL, getSystemClassLoader, NULL).GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700636 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500637
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700638 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700639
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700640 Class* thread_class = soa.Decode<Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700641 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
642
643 Field* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
644 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500645 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700646
Ian Rogerscfaa4552012-11-26 21:00:08 -0800647 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700648}
649
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700650void Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800651 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700652
653 CHECK(host_prefix_.empty()) << host_prefix_;
654
Elliott Hughes225f5a12012-06-11 11:23:48 -0700655 // Pre-allocate an OutOfMemoryError for the double-OOME case.
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700656 Thread* self = Thread::Current();
Elliott Hughes225f5a12012-06-11 11:23:48 -0700657 self->ThrowNewException("Ljava/lang/OutOfMemoryError;",
658 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
659 pre_allocated_OutOfMemoryError_ = self->GetException();
660 self->ClearException();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700661
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700662 // Restore main thread state to kNative as expected by native code.
663 self->TransitionFromRunnableToSuspended(kNative);
664
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700665 started_ = true;
666
Brian Carlstromae826982011-11-09 01:33:42 -0800667 // InitNativeMethods needs to be after started_ so that the classes
668 // it touches will have methods linked to the oat file if necessary.
669 InitNativeMethods();
670
Ian Rogers365c1022012-06-22 15:05:28 -0700671 // Initialize well known thread group values that may be accessed threads while attaching.
672 InitThreadGroups(self);
673
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500674 Thread::FinishStartup();
675
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700676 if (!is_zygote_) {
677 DidForkFromZygote();
678 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700679
Elliott Hughes85d15452011-09-16 17:33:01 -0700680 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700681
Brian Carlstromaded5f72011-10-07 17:15:04 -0700682 CreateSystemClassLoader();
683
Elliott Hughes225f5a12012-06-11 11:23:48 -0700684 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700685
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800686 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700687
688 finished_starting_ = true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700689}
690
Ian Rogers120f1c72012-09-28 17:17:10 -0700691void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
692 DCHECK_GT(threads_being_born_, 0U);
693 threads_being_born_--;
694 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700695 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700696 }
697}
698
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700699void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700700 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700701
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700702 // Create the thread pool.
703 heap_->CreateThreadPool();
704
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700705 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700706
707 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
708 // this will pause the runtime, so we probably want this to come last.
709 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700710}
711
712void Runtime::StartSignalCatcher() {
713 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700714 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700715 }
716}
717
Elliott Hughes85d15452011-09-16 17:33:01 -0700718void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800719 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700720
Elliott Hughes719b3232011-09-25 17:42:19 -0700721 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700722
723 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700724 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700725
Elliott Hughes719b3232011-09-25 17:42:19 -0700726 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700727 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
728 WellKnownClasses::java_lang_Daemons_start);
729 if (env->ExceptionCheck()) {
730 env->ExceptionDescribe();
731 LOG(FATAL) << "Error starting java.lang.Daemons";
732 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700733
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800734 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700735}
736
Elliott Hughes0af55432011-08-17 18:37:28 -0700737bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700738 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700739
Elliott Hughes90a33692011-08-30 13:27:07 -0700740 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
741 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700742 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700743 return false;
744 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800745 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700746
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700747 QuasiAtomic::Startup();
748
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700749 SetJniGlobalsMax(options->jni_globals_max_);
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800750 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700751
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700752 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800753 boot_class_path_string_ = options->boot_class_path_string_;
754 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700755 properties_ = options->properties_;
756
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800757 is_compiler_ = options->is_compiler_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700758 is_zygote_ = options->is_zygote_;
Ian Rogers50ffee22012-11-20 11:47:44 -0800759 interpreter_only_ = options->interpreter_only_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700760 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700761
Elliott Hughes0af55432011-08-17 18:37:28 -0700762 vfprintf_ = options->hook_vfprintf_;
763 exit_ = options->hook_exit_;
764 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700765
Elliott Hughesbe759c62011-09-08 19:38:21 -0700766 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700767 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700768
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700769 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800770 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700771 intern_table_ = new InternTable;
772
Elliott Hughes0a1038b2012-06-14 16:24:17 -0700773 verifier::MethodVerifier::Init();
Logan Chiendd361c92012-04-10 23:40:37 +0800774
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800775 heap_ = new Heap(options->heap_initial_size_,
776 options->heap_growth_limit_,
Mathieu Chartier0051be62012-10-12 17:47:11 -0700777 options->heap_min_free_,
778 options->heap_max_free_,
779 options->heap_target_utilization_,
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800780 options->heap_maximum_size_,
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700781 options->image_,
782 options->is_concurrent_gc_enabled_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700783
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700784 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700785 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700786
Elliott Hughesa0957642011-09-02 14:27:33 -0700787 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700788
Elliott Hughesbe759c62011-09-08 19:38:21 -0700789 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700790
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800791 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
792 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
793 // thread, we do not get a java peer.
794 Thread* self = Thread::Attach("main", false, NULL, false);
795 CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700796 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700797
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700798 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700799 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700800
Ian Rogers141d6222012-04-05 12:23:06 -0700801 // Now we're attached, we can take the heap lock and validate the heap.
802 GetHeap()->EnableObjectValidation();
803
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800804 CHECK_GE(GetHeap()->GetSpaces().size(), 1U);
805 if (GetHeap()->GetSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800806 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
807 } else {
808 CHECK(options->boot_class_path_ != NULL);
809 CHECK_NE(options->boot_class_path_->size(), 0U);
810 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
811 }
812 CHECK(class_linker_ != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700813
jeffhaob5e81852012-03-12 11:15:45 -0700814 method_trace_ = options->method_trace_;
815 method_trace_file_ = options->method_trace_file_;
816 method_trace_file_size_ = options->method_trace_file_size_;
817
818 if (options->method_trace_) {
819 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, false);
820 }
821
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800822 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700823 return true;
824}
825
Elliott Hughes038a8062011-09-18 14:12:41 -0700826void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800827 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700828 Thread* self = Thread::Current();
829 JNIEnv* env = self->GetJniEnv();
830
Elliott Hughes418d20f2011-09-22 14:00:39 -0700831 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700832 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700833
Elliott Hughes418d20f2011-09-22 14:00:39 -0700834 // First set up JniConstants, which is used by both the runtime's built-in native
835 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700836 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700837 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700838
Elliott Hughes418d20f2011-09-22 14:00:39 -0700839 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700840 RegisterRuntimeNativeMethods(env);
841
Elliott Hughes418d20f2011-09-22 14:00:39 -0700842 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
843 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
844 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700845 {
846 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
847 std::string reason;
848 self->TransitionFromSuspendedToRunnable();
849 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
850 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
851 }
852 self->TransitionFromRunnableToSuspended(kNative);
853 }
Ian Rogersef28b142012-11-30 14:22:18 -0800854
855 // Initialize well known classes that may invoke runtime native methods.
856 WellKnownClasses::LateInit(env);
857
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800858 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700859}
860
Ian Rogers365c1022012-06-22 15:05:28 -0700861void Runtime::InitThreadGroups(Thread* self) {
862 JNIEnvExt* env = self->GetJniEnv();
863 ScopedJniEnvLocalRefState env_state(env);
864 main_thread_group_ =
865 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
866 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700867 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700868 system_thread_group_ =
869 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
870 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700871 CHECK(system_thread_group_ != NULL || IsCompiler());
872}
873
874jobject Runtime::GetMainThreadGroup() const {
875 CHECK(main_thread_group_ != NULL || IsCompiler());
876 return main_thread_group_;
877}
878
879jobject Runtime::GetSystemThreadGroup() const {
880 CHECK(system_thread_group_ != NULL || IsCompiler());
881 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700882}
883
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700884void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
885#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800886 // Register Throwable first so that registration of other native methods can throw exceptions
887 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700888 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700889 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700890 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700891 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -0700892 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700893 REGISTER(register_java_lang_Class);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700894 REGISTER(register_java_lang_Object);
895 REGISTER(register_java_lang_Runtime);
896 REGISTER(register_java_lang_String);
897 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700898 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700899 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700900 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700901 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700902 REGISTER(register_java_lang_reflect_Field);
903 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400904 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700905 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700906 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700907 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700908 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700909#undef REGISTER
910}
911
Elliott Hughesc967f782012-04-16 10:23:15 -0700912void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700913 GetClassLinker()->DumpForSigQuit(os);
914 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700915 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700916 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700917 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700918
Elliott Hughesc967f782012-04-16 10:23:15 -0700919 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -0800920 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700921}
922
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800923void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700924 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800925 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
926 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
927 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700928 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
929 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800930 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
931 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
932 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
933 }
934}
935
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700936void Runtime::SetStatsEnabled(bool new_state) {
937 if (new_state == true) {
938 GetStats()->Clear(~0);
939 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
940 Thread::Current()->GetStats()->Clear(~0);
941 }
942 stats_enabled_ = new_state;
943}
944
945void Runtime::ResetStats(int kinds) {
946 GetStats()->Clear(kinds & 0xffff);
947 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
948 Thread::Current()->GetStats()->Clear(kinds >> 16);
949}
950
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700951int32_t Runtime::GetStat(int kind) {
952 RuntimeStats* stats;
953 if (kind < (1<<16)) {
954 stats = GetStats();
955 } else {
956 stats = Thread::Current()->GetStats();
957 kind >>= 16;
958 }
959 switch (kind) {
960 case KIND_ALLOCATED_OBJECTS:
961 return stats->allocated_objects;
962 case KIND_ALLOCATED_BYTES:
963 return stats->allocated_bytes;
964 case KIND_FREED_OBJECTS:
965 return stats->freed_objects;
966 case KIND_FREED_BYTES:
967 return stats->freed_bytes;
968 case KIND_GC_INVOCATIONS:
969 return stats->gc_for_alloc_count;
970 case KIND_CLASS_INIT_COUNT:
971 return stats->class_init_count;
972 case KIND_CLASS_INIT_TIME:
973 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -0700974 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700975 case KIND_EXT_ALLOCATED_OBJECTS:
976 case KIND_EXT_ALLOCATED_BYTES:
977 case KIND_EXT_FREED_OBJECTS:
978 case KIND_EXT_FREED_BYTES:
979 return 0; // backward compatibility
980 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -0700981 LOG(FATAL) << "Unknown statistic " << kind;
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700982 return -1; // unreachable
983 }
984}
985
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700986void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -0700987 SignalSet signals;
988 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700989 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -0700990 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -0700991 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -0700992 signals.Add(SIGUSR1);
993 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700994}
995
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800996bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
997 bool create_peer) {
998 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -0700999 if (thread_name == NULL) {
1000 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1001 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001002 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001003}
1004
Elliott Hughesd92bec42011-09-02 17:04:36 -07001005void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001006 Thread* self = Thread::Current();
1007 if (self == NULL) {
1008 LOG(FATAL) << "attempting to detach thread that is not attached";
1009 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001010 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001011 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1012 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001013 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001014}
1015
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001016void Runtime::VisitConcurrentRoots(Heap::RootVisitor* visitor, void* arg) {
1017 if (intern_table_->IsDirty()) {
1018 intern_table_->VisitRoots(visitor, arg);
1019 }
1020 if (class_linker_->IsDirty()) {
1021 class_linker_->VisitRoots(visitor, arg);
1022 }
1023}
1024
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001025void Runtime::VisitNonThreadRoots(Heap::RootVisitor* visitor, void* arg) {
Elliott Hughesbfe487b2011-10-26 15:48:55 -07001026 Dbg::VisitRoots(visitor, arg);
Brian Carlstrome24fa612011-09-29 00:53:55 -07001027 java_vm_->VisitRoots(visitor, arg);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001028 if (pre_allocated_OutOfMemoryError_ != NULL) {
1029 visitor(pre_allocated_OutOfMemoryError_, arg);
1030 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001031 visitor(jni_stub_array_, arg);
1032 visitor(abstract_method_error_stub_array_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001033 for (int i = 0; i < Runtime::kLastTrampolineMethodType; i++) {
1034 visitor(resolution_stub_array_[i], arg);
1035 }
Ian Rogers19846512012-02-24 11:42:47 -08001036 visitor(resolution_method_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001037 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -07001038 visitor(callee_save_methods_[i], arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001039 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001040}
1041
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001042void Runtime::VisitNonConcurrentRoots(Heap::RootVisitor* visitor, void* arg) {
1043 thread_list_->VisitRoots(visitor, arg);
1044 VisitNonThreadRoots(visitor, arg);
1045}
1046
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001047void Runtime::DirtyRoots() {
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001048 CHECK(intern_table_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001049 intern_table_->Dirty();
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001050 CHECK(class_linker_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001051 class_linker_->Dirty();
1052}
1053
1054void Runtime::VisitRoots(Heap::RootVisitor* visitor, void* arg) {
1055 VisitConcurrentRoots(visitor, arg);
1056 VisitNonConcurrentRoots(visitor, arg);
1057}
1058
Ian Rogers169c9a72011-11-13 20:13:17 -08001059void Runtime::SetJniDlsymLookupStub(ByteArray* jni_stub_array) {
Brian Carlstromaded5f72011-10-07 17:15:04 -07001060 CHECK(jni_stub_array != NULL) << " jni_stub_array=" << jni_stub_array;
1061 CHECK(jni_stub_array_ == NULL || jni_stub_array_ == jni_stub_array)
1062 << "jni_stub_array_=" << jni_stub_array_ << " jni_stub_array=" << jni_stub_array;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001063 jni_stub_array_ = jni_stub_array;
1064}
1065
Brian Carlstrome24fa612011-09-29 00:53:55 -07001066void Runtime::SetAbstractMethodErrorStubArray(ByteArray* abstract_method_error_stub_array) {
1067 CHECK(abstract_method_error_stub_array != NULL);
1068 CHECK(abstract_method_error_stub_array_ == NULL || abstract_method_error_stub_array_ == abstract_method_error_stub_array);
1069 abstract_method_error_stub_array_ = abstract_method_error_stub_array;
1070}
1071
Ian Rogers1cb0a1d2011-10-06 15:24:35 -07001072void Runtime::SetResolutionStubArray(ByteArray* resolution_stub_array, TrampolineType type) {
Ian Rogersad25ac52011-10-04 19:13:33 -07001073 CHECK(resolution_stub_array != NULL);
Ian Rogers1cb0a1d2011-10-06 15:24:35 -07001074 CHECK(!HasResolutionStubArray(type) || resolution_stub_array_[type] == resolution_stub_array);
1075 resolution_stub_array_[type] = resolution_stub_array;
Ian Rogersad25ac52011-10-04 19:13:33 -07001076}
1077
Mathieu Chartier66f19252012-09-18 08:57:04 -07001078AbstractMethod* Runtime::CreateResolutionMethod() {
1079 Class* method_class = AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001080 Thread* self = Thread::Current();
1081 SirtRef<AbstractMethod> method(self, down_cast<AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001082 method->SetDeclaringClass(method_class);
1083 // TODO: use a special method for resolution method saves
1084 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
1085 ByteArray* unknown_resolution_stub = GetResolutionStubArray(kUnknownMethod);
1086 CHECK(unknown_resolution_stub != NULL);
1087 method->SetCode(unknown_resolution_stub->GetData());
1088 return method.get();
1089}
1090
Ian Rogers1f539342012-10-03 21:09:42 -07001091AbstractMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
1092 CalleeSaveType type) {
Mathieu Chartier66f19252012-09-18 08:57:04 -07001093 Class* method_class = AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001094 Thread* self = Thread::Current();
1095 SirtRef<AbstractMethod> method(self, down_cast<AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001096 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001097 // TODO: use a special method for callee saves
Ian Rogers19846512012-02-24 11:42:47 -08001098 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Brian Carlstrom3320cf42011-10-04 14:58:28 -07001099 method->SetCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001100 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001101 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1102 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1103 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1104 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001105 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1106 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001107 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1108 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1109 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1110 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1111 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1112 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1113 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1114 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1115 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1116 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1117 (1 << art::arm::S30) | (1 << art::arm::S31);
1118 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1119 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1120 __builtin_popcount(fp_spills) /* fprs */ +
1121 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001122 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001123 method->SetCoreSpillMask(core_spills);
1124 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001125 } else if (instruction_set == kMips) {
1126 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1127 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
1128 (1 << art::mips::FP);
1129 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001130 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001131 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001132 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001133 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
jeffhao4eb68ed2012-10-17 16:41:07 -07001134 (type == kRefsAndArgs ? 0 : 5) /* reserve arg space */ +
jeffhao7fbee072012-08-24 17:56:54 -07001135 1 /* Method* */) * kPointerSize, kStackAlignment);
1136 method->SetFrameSizeInBytes(frame_size);
1137 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001138 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001139 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001140 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1141 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1142 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1143 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1144 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1145 1 /* Method* */) * kPointerSize, kStackAlignment);
1146 method->SetFrameSizeInBytes(frame_size);
1147 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001148 method->SetFpSpillMask(0);
1149 } else {
1150 UNIMPLEMENTED(FATAL);
1151 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001152 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001153}
1154
Mathieu Chartier66f19252012-09-18 08:57:04 -07001155void Runtime::SetCalleeSaveMethod(AbstractMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001156 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001157 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001158}
1159
jeffhao725a9572012-11-13 18:20:12 -08001160void Runtime::EnableMethodTracing(Trace* trace) {
jeffhao2692b572011-12-16 15:42:28 -08001161 CHECK(!IsMethodTracingActive());
jeffhao725a9572012-11-13 18:20:12 -08001162 if (instrumentation_ == NULL) {
1163 instrumentation_ = new Instrumentation();
1164 }
1165 instrumentation_->SetTrace(trace);
jeffhao2692b572011-12-16 15:42:28 -08001166}
1167
1168void Runtime::DisableMethodTracing() {
1169 CHECK(IsMethodTracingActive());
jeffhao725a9572012-11-13 18:20:12 -08001170 instrumentation_->RemoveTrace();
1171}
1172
1173bool Runtime::IsMethodTracingActive() const {
1174 return instrumentation_ != NULL && instrumentation_->GetTrace() != NULL;
1175}
1176
1177Instrumentation* Runtime::GetInstrumentation() const {
1178 CHECK(IsMethodTracingActive());
1179 return instrumentation_;
jeffhao2692b572011-12-16 15:42:28 -08001180}
1181
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001182const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001183 if (class_loader == NULL) {
1184 return GetClassLinker()->GetBootClassPath();
1185 }
1186 CHECK(UseCompileTimeClassPath());
1187 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1188 CHECK(it != compile_time_class_paths_.end());
1189 return it->second;
1190}
1191
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001192void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001193 CHECK(!IsStarted());
1194 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001195 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001196}
1197
Carl Shapiro1fb86202011-06-27 17:43:13 -07001198} // namespace art