blob: 4cc3b4f11b5114de903d1dd2d5110f022dd29425 [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 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;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700367 parsed->is_concurrent_gc_enabled_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700368
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700369 parsed->jni_globals_max_ = 0;
Elliott Hughesfc861622011-10-17 17:57:47 -0700370 parsed->lock_profiling_threshold_ = 0;
371 parsed->hook_is_sensitive_thread_ = NULL;
372
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700373 parsed->hook_vfprintf_ = vfprintf;
374 parsed->hook_exit_ = exit;
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700375 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700376
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800377// gLogVerbosity.class_linker = true; // TODO: don't check this in!
378// gLogVerbosity.compiler = true; // TODO: don't check this in!
379// gLogVerbosity.heap = true; // TODO: don't check this in!
380// gLogVerbosity.gc = true; // TODO: don't check this in!
381// gLogVerbosity.jdwp = true; // TODO: don't check this in!
382// gLogVerbosity.jni = true; // TODO: don't check this in!
383// gLogVerbosity.monitor = true; // TODO: don't check this in!
384// gLogVerbosity.startup = true; // TODO: don't check this in!
385// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
386// gLogVerbosity.threads = true; // TODO: don't check this in!
387
jeffhaob5e81852012-03-12 11:15:45 -0700388 parsed->method_trace_ = false;
389 parsed->method_trace_file_ = "/data/method-trace-file.bin";
390 parsed->method_trace_file_size_ = 10 * MB;
391
Brian Carlstrom8a436592011-08-15 21:27:23 -0700392 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800393 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700394 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700395 LOG(INFO) << "option[" << i << "]=" << option;
396 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800397 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800398 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700399 } else if (option == "-classpath" || option == "-cp") {
400 // TODO: support -Djava.class.path
401 i++;
402 if (i == options.size()) {
403 // TODO: usage
404 LOG(FATAL) << "Missing required class path value for " << option;
405 return NULL;
406 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800407 const StringPiece& value = options[i].first;
408 parsed->class_path_string_ = value.data();
409 } else if (option == "bootclasspath") {
410 parsed->boot_class_path_
411 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800412 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800413 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800414 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700415 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800416 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
417 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700418 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
419 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
420 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
421 return NULL;
422 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800423 } else if (StartsWith(option, "-Xms")) {
424 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700425 if (size == 0) {
426 if (ignore_unrecognized) {
427 continue;
428 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700429 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700430 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700431 return NULL;
432 }
433 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800434 } else if (StartsWith(option, "-Xmx")) {
435 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700436 if (size == 0) {
437 if (ignore_unrecognized) {
438 continue;
439 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700440 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700441 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700442 return NULL;
443 }
444 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800445 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
446 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700447 if (size == 0) {
448 if (ignore_unrecognized) {
449 continue;
450 }
451 // TODO: usage
452 LOG(FATAL) << "Failed to parse " << option;
453 return NULL;
454 }
455 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700456 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
457 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
458 if (size == 0) {
459 if (ignore_unrecognized) {
460 continue;
461 }
462 // TODO: usage
463 LOG(FATAL) << "Failed to parse " << option;
464 return NULL;
465 }
466 parsed->heap_min_free_ = size;
467 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
468 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
469 if (size == 0) {
470 if (ignore_unrecognized) {
471 continue;
472 }
473 // TODO: usage
474 LOG(FATAL) << "Failed to parse " << option;
475 return NULL;
476 }
477 parsed->heap_max_free_ = size;
478 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
479 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
480 double value;
481 iss >> value;
482 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range.
483 const bool sane_val = iss.good() && (value >= 0.1) && (value <= 0.9);
484 if (!sane_val) {
485 if (ignore_unrecognized) {
486 continue;
487 }
488 LOG(FATAL) << "Invalid option '" << option << "'";
489 return NULL;
490 }
491 parsed->heap_target_utilization_ = value;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800492 } else if (StartsWith(option, "-Xss")) {
493 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700494 if (size == 0) {
495 if (ignore_unrecognized) {
496 continue;
497 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700498 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700499 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700500 return NULL;
501 }
502 parsed->stack_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800503 } else if (StartsWith(option, "-D")) {
504 parsed->properties_.push_back(option.substr(strlen("-D")));
505 } else if (StartsWith(option, "-Xjnitrace:")) {
506 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700507 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800508 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700509 } else if (option == "-Xzygote") {
510 parsed->is_zygote_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700511 } else if (StartsWith(option, "-Xgc:")) {
512 std::vector<std::string> gc_options;
513 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
514 for (size_t i = 0; i < gc_options.size(); ++i) {
515 if (gc_options[i] == "noconcurrent") {
516 parsed->is_concurrent_gc_enabled_ = false;
517 } else if (gc_options[i] == "concurrent") {
518 parsed->is_concurrent_gc_enabled_ = true;
519 } else {
520 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
521 }
522 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800523 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700524 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800525 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700526 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800527 if (verbose_options[i] == "class") {
528 gLogVerbosity.class_linker = true;
529 } else if (verbose_options[i] == "compiler") {
530 gLogVerbosity.compiler = true;
531 } else if (verbose_options[i] == "heap") {
532 gLogVerbosity.heap = true;
533 } else if (verbose_options[i] == "gc") {
534 gLogVerbosity.gc = true;
535 } else if (verbose_options[i] == "jdwp") {
536 gLogVerbosity.jdwp = true;
537 } else if (verbose_options[i] == "jni") {
538 gLogVerbosity.jni = true;
539 } else if (verbose_options[i] == "monitor") {
540 gLogVerbosity.monitor = true;
541 } else if (verbose_options[i] == "startup") {
542 gLogVerbosity.startup = true;
543 } else if (verbose_options[i] == "third-party-jni") {
544 gLogVerbosity.third_party_jni = true;
545 } else if (verbose_options[i] == "threads") {
546 gLogVerbosity.threads = true;
547 } else {
548 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
549 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700550 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800551 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700552 parsed->jni_globals_max_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800553 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700554 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800555 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700556 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700557 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700558 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700559 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700560 parsed->hook_vfprintf_ =
561 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700562 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700563 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700564 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700565 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700566 } else if (option == "host-prefix") {
567 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800568 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
569 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700570 } else if (option == "-Xmethod-trace") {
571 parsed->method_trace_ = true;
572 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
573 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
574 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
575 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700576 } else if (option == "-Xprofile:threadcpuclock") {
577 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
578 } else if (option == "-Xprofile:wallclock") {
579 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
580 } else if (option == "-Xprofile:dualclock") {
581 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700582 } else {
583 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700584 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700585 LOG(ERROR) << "Unrecognized option " << option;
586 // TODO: this should exit, but for now tolerate unknown options
587 //return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700588 }
589 }
590 }
591
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800592 if (!parsed->is_compiler_ && parsed->image_.empty()) {
593 parsed->image_ += GetAndroidRoot();
594 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700595 }
jeffhaoc1160702011-10-27 15:48:45 -0700596 if (parsed->heap_growth_limit_ == 0) {
597 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
598 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700599
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700600 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700601}
602
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700603bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700604 // TODO: acquire a static mutex on Runtime to avoid racing.
605 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700606 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700607 }
Ian Rogersb726dcb2012-09-05 08:57:23 -0700608 Locks::Init();
Elliott Hughesdcc24742011-09-07 14:02:44 -0700609 instance_ = new Runtime;
610 if (!instance_->Init(options, ignore_unrecognized)) {
611 delete instance_;
612 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700613 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700614 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700615 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700616}
Elliott Hughes0af55432011-08-17 18:37:28 -0700617
Ian Rogers365c1022012-06-22 15:05:28 -0700618static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800619 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700620 return;
621 }
622
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700623 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700624
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700625 Class* class_loader_class = soa.Decode<Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700626 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700627
Mathieu Chartier66f19252012-09-18 08:57:04 -0700628 AbstractMethod* getSystemClassLoader = class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700629 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700630
Ian Rogers365c1022012-06-22 15:05:28 -0700631 ClassLoader* class_loader =
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700632 down_cast<ClassLoader*>(InvokeWithJValues(soa, NULL, getSystemClassLoader, NULL).GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700633 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500634
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700635 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700636
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700637 Class* thread_class = soa.Decode<Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700638 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
639
640 Field* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
641 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500642 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700643
Mathieu Chartierdbe6f462012-09-25 16:54:50 -0700644 contextClassLoader->SetObject(soa.Decode<Object*>(soa.Self()->GetPeer()), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700645}
646
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700647void Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800648 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700649
650 CHECK(host_prefix_.empty()) << host_prefix_;
651
Elliott Hughes225f5a12012-06-11 11:23:48 -0700652 // Relocate the OatFiles (ELF images).
Logan Chien0c717dd2012-03-28 18:31:07 +0800653 class_linker_->RelocateExecutable();
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_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700759 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700760
Elliott Hughes0af55432011-08-17 18:37:28 -0700761 vfprintf_ = options->hook_vfprintf_;
762 exit_ = options->hook_exit_;
763 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700764
Elliott Hughesbe759c62011-09-08 19:38:21 -0700765 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700766 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700767
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700768 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800769 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700770 intern_table_ = new InternTable;
771
Elliott Hughes0a1038b2012-06-14 16:24:17 -0700772 verifier::MethodVerifier::Init();
Logan Chiendd361c92012-04-10 23:40:37 +0800773
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800774 heap_ = new Heap(options->heap_initial_size_,
775 options->heap_growth_limit_,
Mathieu Chartier0051be62012-10-12 17:47:11 -0700776 options->heap_min_free_,
777 options->heap_max_free_,
778 options->heap_target_utilization_,
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800779 options->heap_maximum_size_,
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700780 options->image_,
781 options->is_concurrent_gc_enabled_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700782
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700783 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700784 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700785
Elliott Hughesa0957642011-09-02 14:27:33 -0700786 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700787
Elliott Hughesbe759c62011-09-08 19:38:21 -0700788 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700789
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800790 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
791 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
792 // thread, we do not get a java peer.
793 Thread* self = Thread::Attach("main", false, NULL, false);
794 CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700795 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700796
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700797 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700798 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700799
Ian Rogers141d6222012-04-05 12:23:06 -0700800 // Now we're attached, we can take the heap lock and validate the heap.
801 GetHeap()->EnableObjectValidation();
802
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800803 CHECK_GE(GetHeap()->GetSpaces().size(), 1U);
804 if (GetHeap()->GetSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800805 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
806 } else {
807 CHECK(options->boot_class_path_ != NULL);
808 CHECK_NE(options->boot_class_path_->size(), 0U);
809 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
810 }
811 CHECK(class_linker_ != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700812
jeffhaob5e81852012-03-12 11:15:45 -0700813 method_trace_ = options->method_trace_;
814 method_trace_file_ = options->method_trace_file_;
815 method_trace_file_size_ = options->method_trace_file_size_;
816
817 if (options->method_trace_) {
818 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, false);
819 }
820
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800821 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700822 return true;
823}
824
Elliott Hughes038a8062011-09-18 14:12:41 -0700825void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800826 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700827 Thread* self = Thread::Current();
828 JNIEnv* env = self->GetJniEnv();
829
Elliott Hughes418d20f2011-09-22 14:00:39 -0700830 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700831 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700832
Elliott Hughes418d20f2011-09-22 14:00:39 -0700833 // First set up JniConstants, which is used by both the runtime's built-in native
834 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700835 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700836 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700837
Elliott Hughes418d20f2011-09-22 14:00:39 -0700838 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700839 RegisterRuntimeNativeMethods(env);
840
Elliott Hughes418d20f2011-09-22 14:00:39 -0700841 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
842 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
843 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700844 {
845 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
846 std::string reason;
847 self->TransitionFromSuspendedToRunnable();
848 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
849 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
850 }
851 self->TransitionFromRunnableToSuspended(kNative);
852 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800853 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700854}
855
Ian Rogers365c1022012-06-22 15:05:28 -0700856void Runtime::InitThreadGroups(Thread* self) {
857 JNIEnvExt* env = self->GetJniEnv();
858 ScopedJniEnvLocalRefState env_state(env);
859 main_thread_group_ =
860 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
861 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700862 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700863 system_thread_group_ =
864 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
865 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700866 CHECK(system_thread_group_ != NULL || IsCompiler());
867}
868
869jobject Runtime::GetMainThreadGroup() const {
870 CHECK(main_thread_group_ != NULL || IsCompiler());
871 return main_thread_group_;
872}
873
874jobject Runtime::GetSystemThreadGroup() const {
875 CHECK(system_thread_group_ != NULL || IsCompiler());
876 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700877}
878
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700879void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
880#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800881 // Register Throwable first so that registration of other native methods can throw exceptions
882 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700883 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700884 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700885 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700886 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -0700887 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700888 REGISTER(register_java_lang_Class);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700889 REGISTER(register_java_lang_Object);
890 REGISTER(register_java_lang_Runtime);
891 REGISTER(register_java_lang_String);
892 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700893 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700894 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700895 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700896 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700897 REGISTER(register_java_lang_reflect_Field);
898 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400899 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700900 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700901 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700902 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700903 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700904#undef REGISTER
905}
906
Elliott Hughesc967f782012-04-16 10:23:15 -0700907void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700908 GetClassLinker()->DumpForSigQuit(os);
909 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700910 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700911 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700912 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700913
Elliott Hughesc967f782012-04-16 10:23:15 -0700914 thread_list_->DumpForSigQuit(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700915}
916
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800917void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700918 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800919 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
920 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
921 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700922 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
923 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800924 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
925 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
926 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
927 }
928}
929
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700930void Runtime::SetStatsEnabled(bool new_state) {
931 if (new_state == true) {
932 GetStats()->Clear(~0);
933 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
934 Thread::Current()->GetStats()->Clear(~0);
935 }
936 stats_enabled_ = new_state;
937}
938
939void Runtime::ResetStats(int kinds) {
940 GetStats()->Clear(kinds & 0xffff);
941 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
942 Thread::Current()->GetStats()->Clear(kinds >> 16);
943}
944
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700945int32_t Runtime::GetStat(int kind) {
946 RuntimeStats* stats;
947 if (kind < (1<<16)) {
948 stats = GetStats();
949 } else {
950 stats = Thread::Current()->GetStats();
951 kind >>= 16;
952 }
953 switch (kind) {
954 case KIND_ALLOCATED_OBJECTS:
955 return stats->allocated_objects;
956 case KIND_ALLOCATED_BYTES:
957 return stats->allocated_bytes;
958 case KIND_FREED_OBJECTS:
959 return stats->freed_objects;
960 case KIND_FREED_BYTES:
961 return stats->freed_bytes;
962 case KIND_GC_INVOCATIONS:
963 return stats->gc_for_alloc_count;
964 case KIND_CLASS_INIT_COUNT:
965 return stats->class_init_count;
966 case KIND_CLASS_INIT_TIME:
967 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -0700968 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700969 case KIND_EXT_ALLOCATED_OBJECTS:
970 case KIND_EXT_ALLOCATED_BYTES:
971 case KIND_EXT_FREED_OBJECTS:
972 case KIND_EXT_FREED_BYTES:
973 return 0; // backward compatibility
974 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -0700975 LOG(FATAL) << "Unknown statistic " << kind;
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700976 return -1; // unreachable
977 }
978}
979
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700980void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -0700981 SignalSet signals;
982 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700983 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -0700984 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -0700985 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -0700986 signals.Add(SIGUSR1);
987 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700988}
989
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800990bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
991 bool create_peer) {
992 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -0700993 if (thread_name == NULL) {
994 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
995 }
Ian Rogers120f1c72012-09-28 17:17:10 -0700996 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700997}
998
Elliott Hughesd92bec42011-09-02 17:04:36 -0700999void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001000 Thread* self = Thread::Current();
1001 if (self == NULL) {
1002 LOG(FATAL) << "attempting to detach thread that is not attached";
1003 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001004 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001005 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1006 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001007 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001008}
1009
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001010void Runtime::VisitConcurrentRoots(Heap::RootVisitor* visitor, void* arg) {
1011 if (intern_table_->IsDirty()) {
1012 intern_table_->VisitRoots(visitor, arg);
1013 }
1014 if (class_linker_->IsDirty()) {
1015 class_linker_->VisitRoots(visitor, arg);
1016 }
1017}
1018
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001019void Runtime::VisitNonThreadRoots(Heap::RootVisitor* visitor, void* arg) {
Elliott Hughesbfe487b2011-10-26 15:48:55 -07001020 Dbg::VisitRoots(visitor, arg);
Brian Carlstrome24fa612011-09-29 00:53:55 -07001021 java_vm_->VisitRoots(visitor, arg);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001022 if (pre_allocated_OutOfMemoryError_ != NULL) {
1023 visitor(pre_allocated_OutOfMemoryError_, arg);
1024 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001025 visitor(jni_stub_array_, arg);
1026 visitor(abstract_method_error_stub_array_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001027 for (int i = 0; i < Runtime::kLastTrampolineMethodType; i++) {
1028 visitor(resolution_stub_array_[i], arg);
1029 }
Ian Rogers19846512012-02-24 11:42:47 -08001030 visitor(resolution_method_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001031 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -07001032 visitor(callee_save_methods_[i], arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001033 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001034}
1035
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001036void Runtime::VisitNonConcurrentRoots(Heap::RootVisitor* visitor, void* arg) {
1037 thread_list_->VisitRoots(visitor, arg);
1038 VisitNonThreadRoots(visitor, arg);
1039}
1040
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001041void Runtime::DirtyRoots() {
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001042 CHECK(intern_table_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001043 intern_table_->Dirty();
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001044 CHECK(class_linker_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001045 class_linker_->Dirty();
1046}
1047
1048void Runtime::VisitRoots(Heap::RootVisitor* visitor, void* arg) {
1049 VisitConcurrentRoots(visitor, arg);
1050 VisitNonConcurrentRoots(visitor, arg);
1051}
1052
Ian Rogers169c9a72011-11-13 20:13:17 -08001053void Runtime::SetJniDlsymLookupStub(ByteArray* jni_stub_array) {
Brian Carlstromaded5f72011-10-07 17:15:04 -07001054 CHECK(jni_stub_array != NULL) << " jni_stub_array=" << jni_stub_array;
1055 CHECK(jni_stub_array_ == NULL || jni_stub_array_ == jni_stub_array)
1056 << "jni_stub_array_=" << jni_stub_array_ << " jni_stub_array=" << jni_stub_array;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001057 jni_stub_array_ = jni_stub_array;
1058}
1059
Brian Carlstrome24fa612011-09-29 00:53:55 -07001060void Runtime::SetAbstractMethodErrorStubArray(ByteArray* abstract_method_error_stub_array) {
1061 CHECK(abstract_method_error_stub_array != NULL);
1062 CHECK(abstract_method_error_stub_array_ == NULL || abstract_method_error_stub_array_ == abstract_method_error_stub_array);
1063 abstract_method_error_stub_array_ = abstract_method_error_stub_array;
1064}
1065
Ian Rogers1cb0a1d2011-10-06 15:24:35 -07001066void Runtime::SetResolutionStubArray(ByteArray* resolution_stub_array, TrampolineType type) {
Ian Rogersad25ac52011-10-04 19:13:33 -07001067 CHECK(resolution_stub_array != NULL);
Ian Rogers1cb0a1d2011-10-06 15:24:35 -07001068 CHECK(!HasResolutionStubArray(type) || resolution_stub_array_[type] == resolution_stub_array);
1069 resolution_stub_array_[type] = resolution_stub_array;
Ian Rogersad25ac52011-10-04 19:13:33 -07001070}
1071
Mathieu Chartier66f19252012-09-18 08:57:04 -07001072AbstractMethod* Runtime::CreateResolutionMethod() {
1073 Class* method_class = AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001074 Thread* self = Thread::Current();
1075 SirtRef<AbstractMethod> method(self, down_cast<AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001076 method->SetDeclaringClass(method_class);
1077 // TODO: use a special method for resolution method saves
1078 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
1079 ByteArray* unknown_resolution_stub = GetResolutionStubArray(kUnknownMethod);
1080 CHECK(unknown_resolution_stub != NULL);
1081 method->SetCode(unknown_resolution_stub->GetData());
1082 return method.get();
1083}
1084
Ian Rogers1f539342012-10-03 21:09:42 -07001085AbstractMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
1086 CalleeSaveType type) {
Mathieu Chartier66f19252012-09-18 08:57:04 -07001087 Class* method_class = AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001088 Thread* self = Thread::Current();
1089 SirtRef<AbstractMethod> method(self, down_cast<AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001090 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001091 // TODO: use a special method for callee saves
Ian Rogers19846512012-02-24 11:42:47 -08001092 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Brian Carlstrom3320cf42011-10-04 14:58:28 -07001093 method->SetCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001094 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001095 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1096 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1097 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1098 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001099 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1100 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001101 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1102 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1103 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1104 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1105 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1106 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1107 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1108 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1109 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1110 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1111 (1 << art::arm::S30) | (1 << art::arm::S31);
1112 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1113 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1114 __builtin_popcount(fp_spills) /* fprs */ +
1115 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001116 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001117 method->SetCoreSpillMask(core_spills);
1118 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001119 } else if (instruction_set == kMips) {
1120 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1121 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
1122 (1 << art::mips::FP);
1123 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001124 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001125 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001126 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001127 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
jeffhao4eb68ed2012-10-17 16:41:07 -07001128 (type == kRefsAndArgs ? 0 : 5) /* reserve arg space */ +
jeffhao7fbee072012-08-24 17:56:54 -07001129 1 /* Method* */) * kPointerSize, kStackAlignment);
1130 method->SetFrameSizeInBytes(frame_size);
1131 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001132 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001133 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001134 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1135 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1136 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1137 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1138 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1139 1 /* Method* */) * kPointerSize, kStackAlignment);
1140 method->SetFrameSizeInBytes(frame_size);
1141 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001142 method->SetFpSpillMask(0);
1143 } else {
1144 UNIMPLEMENTED(FATAL);
1145 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001146 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001147}
1148
Mathieu Chartier66f19252012-09-18 08:57:04 -07001149void Runtime::SetCalleeSaveMethod(AbstractMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001150 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001151 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001152}
1153
jeffhao725a9572012-11-13 18:20:12 -08001154void Runtime::EnableMethodTracing(Trace* trace) {
jeffhao2692b572011-12-16 15:42:28 -08001155 CHECK(!IsMethodTracingActive());
jeffhao725a9572012-11-13 18:20:12 -08001156 if (instrumentation_ == NULL) {
1157 instrumentation_ = new Instrumentation();
1158 }
1159 instrumentation_->SetTrace(trace);
jeffhao2692b572011-12-16 15:42:28 -08001160}
1161
1162void Runtime::DisableMethodTracing() {
1163 CHECK(IsMethodTracingActive());
jeffhao725a9572012-11-13 18:20:12 -08001164 instrumentation_->RemoveTrace();
1165}
1166
1167bool Runtime::IsMethodTracingActive() const {
1168 return instrumentation_ != NULL && instrumentation_->GetTrace() != NULL;
1169}
1170
1171Instrumentation* Runtime::GetInstrumentation() const {
1172 CHECK(IsMethodTracingActive());
1173 return instrumentation_;
jeffhao2692b572011-12-16 15:42:28 -08001174}
1175
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001176const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001177 if (class_loader == NULL) {
1178 return GetClassLinker()->GetBootClassPath();
1179 }
1180 CHECK(UseCompileTimeClassPath());
1181 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1182 CHECK(it != compile_time_class_paths_.end());
1183 return it->second;
1184}
1185
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001186void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001187 CHECK(!IsStarted());
1188 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001189 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001190}
1191
Carl Shapiro1fb86202011-06-27 17:43:13 -07001192} // namespace art