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Elliott Hughes2faa5f12012-01-30 14:42:07 -08001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
Carl Shapiro1fb86202011-06-27 17:43:13 -070016
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070017#include "runtime.h"
Carl Shapiro1fb86202011-06-27 17:43:13 -070018
Brian Carlstrombd86bcc2013-03-10 20:26:16 -070019// sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc
20#include <sys/mount.h>
21#include <linux/fs.h>
22
Brian Carlstromdbf05b72011-12-15 00:55:24 -080023#include <signal.h>
Elliott Hughesd06a6c72012-05-30 17:59:06 -070024#include <sys/syscall.h>
Brian Carlstromdbf05b72011-12-15 00:55:24 -080025
Elliott Hughesffe67362011-07-17 12:09:27 -070026#include <cstdio>
27#include <cstdlib>
Brian Carlstrom8a436592011-08-15 21:27:23 -070028#include <limits>
Carl Shapiro2ed144c2011-07-26 16:52:08 -070029#include <vector>
Elliott Hughesffe67362011-07-17 12:09:27 -070030
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080031#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070032#include "class_linker.h"
Elliott Hughes0f3c5532012-03-30 14:51:51 -070033#include "constants_arm.h"
jeffhao7fbee072012-08-24 17:56:54 -070034#include "constants_mips.h"
Elliott Hughes0f3c5532012-03-30 14:51:51 -070035#include "constants_x86.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070036#include "debugger.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080037#include "gc/card_table-inl.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070038#include "heap.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070039#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080040#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070041#include "intern_table.h"
Jeff Hao5d917302013-02-27 17:57:33 -080042#include "invoke_arg_array_builder.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070043#include "jni_internal.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080044#include "mirror/abstract_method-inl.h"
45#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080046#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080047#include "mirror/class_loader.h"
48#include "mirror/field.h"
Ian Rogersc0fa3ad2013-02-05 00:11:55 -080049#include "mirror/field-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080050#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070051#include "monitor.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070052#include "oat_file.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070053#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070054#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070055#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070056#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070057#include "sirt_ref.h"
Mathieu Chartier7469ebf2012-09-24 16:28:36 -070058#include "gc/space.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070059#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070060#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070061#include "trace.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070062#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070063#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070064#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070065
Elliott Hugheseac76672012-05-24 21:56:51 -070066#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070067
Carl Shapiro1fb86202011-06-27 17:43:13 -070068namespace art {
69
Carl Shapiro2ed144c2011-07-26 16:52:08 -070070Runtime* Runtime::instance_ = NULL;
71
Elliott Hughesdcc24742011-09-07 14:02:44 -070072Runtime::Runtime()
Elliott Hughesd9c67be2012-02-02 19:54:06 -080073 : is_compiler_(false),
74 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070075 is_concurrent_gc_enabled_(true),
Elliott Hughes6cf23882012-06-15 15:42:07 -070076 default_stack_size_(0),
Elliott Hughesb3bd5f02012-03-08 21:05:27 -080077 heap_(NULL),
Elliott Hughesc33a32b2011-10-11 18:18:07 -070078 monitor_list_(NULL),
Elliott Hughesdcc24742011-09-07 14:02:44 -070079 thread_list_(NULL),
80 intern_table_(NULL),
81 class_linker_(NULL),
82 signal_catcher_(NULL),
83 java_vm_(NULL),
Elliott Hughes225f5a12012-06-11 11:23:48 -070084 pre_allocated_OutOfMemoryError_(NULL),
Ian Rogers19846512012-02-24 11:42:47 -080085 resolution_method_(NULL),
Ian Rogers7c3757f2012-02-15 17:18:53 -080086 system_class_loader_(NULL),
Ian Rogers120f1c72012-09-28 17:17:10 -070087 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -070088 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -080089 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -070090 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070091 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -070092 finished_starting_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070093 vfprintf_(NULL),
94 exit_(NULL),
Elliott Hughes9d5ccec2011-09-19 13:19:50 -070095 abort_(NULL),
jeffhao2692b572011-12-16 15:42:28 -080096 stats_enabled_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -070097 method_trace_(0),
98 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -080099 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700100 use_compile_time_class_path_(false),
101 main_thread_group_(NULL),
Brian Carlstrom265091e2013-01-30 14:08:26 -0800102 system_thread_group_(NULL) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700103 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -0700104 callee_save_methods_[i] = NULL;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700105 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700106}
107
Carl Shapiro61e019d2011-07-14 16:53:09 -0700108Runtime::~Runtime() {
Ian Rogers120f1c72012-09-28 17:17:10 -0700109 Thread* self = Thread::Current();
110 {
111 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
112 shutting_down_started_ = true;
113 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700114 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700115 }
116 shutting_down_ = true;
117 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800118 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700119
Mathieu Chartiera6399032012-06-11 18:49:50 -0700120 // Make sure to let the GC complete if it is running.
Ian Rogers120f1c72012-09-28 17:17:10 -0700121 heap_->WaitForConcurrentGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800122 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700123
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700124 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700125 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700126 delete signal_catcher_;
127
Elliott Hughes038a8062011-09-18 14:12:41 -0700128 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700129 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700130 delete monitor_list_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700131 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800132 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700133 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700134 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700135 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700136 QuasiAtomic::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700137 // TODO: acquire a static mutex on Runtime to avoid racing.
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700138 CHECK(instance_ == NULL || instance_ == this);
Carl Shapiro4acf4642011-07-26 18:54:13 -0700139 instance_ = NULL;
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800140 verifier::MethodVerifier::Shutdown();
Carl Shapiro61e019d2011-07-14 16:53:09 -0700141}
142
Elliott Hughese0918552011-10-28 17:18:29 -0700143struct AbortState {
144 void Dump(std::ostream& os) {
Ian Rogersf08e4732013-04-09 09:45:49 -0700145 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700146 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
147 return;
148 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700149 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700150 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800151 if (Runtime::Current() == NULL) {
152 os << "(Runtime does not yet exist!)\n";
153 return;
154 }
Elliott Hughese0918552011-10-28 17:18:29 -0700155 Thread* self = Thread::Current();
156 if (self == NULL) {
157 os << "(Aborting thread was not attached to runtime!)\n";
158 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700159 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
160 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
161 // The code below should be made robust to this.
162 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700163 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800164 self->Dump(os);
165 if (self->IsExceptionPending()) {
Ian Rogers62d6c772013-02-27 08:32:07 -0800166 ThrowLocation throw_location;
167 mirror::Throwable* exception = self->GetException(&throw_location);
168 os << "Pending exception " << PrettyTypeOf(exception)
169 << " thrown by '" << throw_location.Dump() << "\n"
170 << exception->Dump();
Elliott Hughes899e7892012-01-24 14:57:32 -0800171 }
Elliott Hughese0918552011-10-28 17:18:29 -0700172 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700173 DumpAllThreads(os, self);
174 }
175
176 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
177 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
178 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700179 if (!tll_already_held || !ml_already_held) {
180 os << "Dumping all threads without appropriate locks held:"
181 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700182 << (!ml_already_held ? " mutator lock" : "")
183 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700184 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700185 os << "All threads:\n";
186 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700187 }
188};
189
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700190void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700191 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800192
Elliott Hughes131aef82012-01-27 11:53:35 -0800193 // Ensure that we don't have multiple threads trying to abort at once,
194 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700195 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800196
Elliott Hughesffe67362011-07-17 12:09:27 -0700197 // Get any pending output out of the way.
198 fflush(NULL);
199
200 // Many people have difficulty distinguish aborts from crashes,
201 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700202 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800203 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700204
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700205 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700206 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700207 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700208 Runtime::Current()->abort_();
209 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700210 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700211 }
212
Elliott Hughesdd623db2013-06-11 11:20:23 -0700213#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700214 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
215 // which POSIX defines in terms of raise(3), which POSIX defines in terms
216 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
217 // libpthread, which means the stacks we dump would be useless. Calling
218 // tgkill(2) directly avoids that.
219 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700220 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
221 // If not, we could use sigaction(3) before calling tgkill(2) and lose this call to exit(3).
Brian Carlstrom700c8d32012-11-05 10:42:02 -0800222 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700223#else
224 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700225#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700226 // notreached
227}
228
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700229bool Runtime::PreZygoteFork() {
230 heap_->PreZygoteFork();
231 return true;
232}
233
Elliott Hughesbf86d042011-08-31 17:53:14 -0700234void Runtime::CallExitHook(jint status) {
235 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700236 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700237 exit_(status);
238 LOG(WARNING) << "Exit hook returned instead of exiting!";
239 }
240}
241
Brian Carlstrom8a436592011-08-15 21:27:23 -0700242// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
243// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
244// [gG] gigabytes.
245//
246// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700247// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
248// of 1024.
249//
250// The spec says the -Xmx and -Xms options must be multiples of 1024. It
251// doesn't say anything about -Xss.
252//
253// Returns 0 (a useless size) if "s" is malformed or specifies a low or
254// non-evenly-divisible value.
255//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800256size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700257 // strtoul accepts a leading [+-], which we don't want,
258 // so make sure our string starts with a decimal digit.
259 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700260 char* s2;
261 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700262 if (s2 != s) {
263 // s2 should be pointing just after the number.
264 // If this is the end of the string, the user
265 // has specified a number of bytes. Otherwise,
266 // there should be exactly one more character
267 // that specifies a multiplier.
268 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700269 // The remainder of the string is either a single multiplier
270 // character, or nothing to indicate that the value is in
271 // bytes.
272 char c = *s2++;
273 if (*s2 == '\0') {
274 size_t mul;
275 if (c == '\0') {
276 mul = 1;
277 } else if (c == 'k' || c == 'K') {
278 mul = KB;
279 } else if (c == 'm' || c == 'M') {
280 mul = MB;
281 } else if (c == 'g' || c == 'G') {
282 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700283 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700284 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700285 return 0;
286 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700287
288 if (val <= std::numeric_limits<size_t>::max() / mul) {
289 val *= mul;
290 } else {
291 // Clamp to a multiple of 1024.
292 val = std::numeric_limits<size_t>::max() & ~(1024-1);
293 }
294 } else {
295 // There's more than one character after the numeric part.
296 return 0;
297 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700298 }
299 // The man page says that a -Xm value must be a multiple of 1024.
300 if (val % div == 0) {
301 return val;
302 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700303 }
304 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700305 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700306}
307
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800308size_t ParseIntegerOrDie(const std::string& s) {
309 std::string::size_type colon = s.find(':');
310 if (colon == std::string::npos) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700311 LOG(FATAL) << "Missing integer: " << s;
312 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800313 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700314 char* end;
315 size_t result = strtoul(begin, &end, 10);
316 if (begin == end || *end != '\0') {
317 LOG(FATAL) << "Failed to parse integer in: " << s;
318 }
319 return result;
320}
321
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700322Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700323 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800324 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
325 if (boot_class_path_string != NULL) {
326 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700327 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800328 const char* class_path_string = getenv("CLASSPATH");
329 if (class_path_string != NULL) {
330 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700331 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700332 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
333 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700334
Mathieu Chartier0051be62012-10-12 17:47:11 -0700335 parsed->heap_initial_size_ = Heap::kDefaultInitialSize;
336 parsed->heap_maximum_size_ = Heap::kDefaultMaximumSize;
337 parsed->heap_min_free_ = Heap::kDefaultMinFree;
338 parsed->heap_max_free_ = Heap::kDefaultMaxFree;
339 parsed->heap_target_utilization_ = Heap::kDefaultTargetUtilization;
Elliott Hughes6cf23882012-06-15 15:42:07 -0700340 parsed->heap_growth_limit_ = 0; // 0 means no growth limit.
341 parsed->stack_size_ = 0; // 0 means default.
Brian Carlstromf734cf52011-08-17 16:28:14 -0700342
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800343 parsed->is_compiler_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700344 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800345 parsed->interpreter_only_ = false;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700346 parsed->is_concurrent_gc_enabled_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700347
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700348 parsed->jni_globals_max_ = 0;
Elliott Hughesfc861622011-10-17 17:57:47 -0700349 parsed->lock_profiling_threshold_ = 0;
350 parsed->hook_is_sensitive_thread_ = NULL;
351
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700352 parsed->hook_vfprintf_ = vfprintf;
353 parsed->hook_exit_ = exit;
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700354 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700355
Anwar Ghuloumb3eb9eb2013-05-02 16:17:45 -0700356 parsed->small_mode_ = false;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700357 parsed->small_mode_method_threshold_ = Runtime::kDefaultSmallModeMethodThreshold;
358 parsed->small_mode_method_dex_size_limit_ = Runtime::kDefaultSmallModeMethodDexSizeLimit;
359
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800360// gLogVerbosity.class_linker = true; // TODO: don't check this in!
361// gLogVerbosity.compiler = true; // TODO: don't check this in!
362// gLogVerbosity.heap = true; // TODO: don't check this in!
363// gLogVerbosity.gc = true; // TODO: don't check this in!
364// gLogVerbosity.jdwp = true; // TODO: don't check this in!
365// gLogVerbosity.jni = true; // TODO: don't check this in!
366// gLogVerbosity.monitor = true; // TODO: don't check this in!
367// gLogVerbosity.startup = true; // TODO: don't check this in!
368// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
369// gLogVerbosity.threads = true; // TODO: don't check this in!
370
jeffhaob5e81852012-03-12 11:15:45 -0700371 parsed->method_trace_ = false;
372 parsed->method_trace_file_ = "/data/method-trace-file.bin";
373 parsed->method_trace_file_size_ = 10 * MB;
374
Brian Carlstrom8a436592011-08-15 21:27:23 -0700375 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800376 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700377 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700378 LOG(INFO) << "option[" << i << "]=" << option;
379 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800380 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800381 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700382 } else if (option == "-classpath" || option == "-cp") {
383 // TODO: support -Djava.class.path
384 i++;
385 if (i == options.size()) {
386 // TODO: usage
387 LOG(FATAL) << "Missing required class path value for " << option;
388 return NULL;
389 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800390 const StringPiece& value = options[i].first;
391 parsed->class_path_string_ = value.data();
392 } else if (option == "bootclasspath") {
393 parsed->boot_class_path_
394 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800395 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800396 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800397 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700398 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800399 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
400 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700401 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
402 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
403 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
404 return NULL;
405 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800406 } else if (StartsWith(option, "-Xms")) {
407 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700408 if (size == 0) {
409 if (ignore_unrecognized) {
410 continue;
411 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700412 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700413 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700414 return NULL;
415 }
416 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800417 } else if (StartsWith(option, "-Xmx")) {
418 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700419 if (size == 0) {
420 if (ignore_unrecognized) {
421 continue;
422 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700423 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700424 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700425 return NULL;
426 }
427 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800428 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
429 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700430 if (size == 0) {
431 if (ignore_unrecognized) {
432 continue;
433 }
434 // TODO: usage
435 LOG(FATAL) << "Failed to parse " << option;
436 return NULL;
437 }
438 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700439 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
440 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
441 if (size == 0) {
442 if (ignore_unrecognized) {
443 continue;
444 }
445 // TODO: usage
446 LOG(FATAL) << "Failed to parse " << option;
447 return NULL;
448 }
449 parsed->heap_min_free_ = size;
450 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
451 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
452 if (size == 0) {
453 if (ignore_unrecognized) {
454 continue;
455 }
456 // TODO: usage
457 LOG(FATAL) << "Failed to parse " << option;
458 return NULL;
459 }
460 parsed->heap_max_free_ = size;
461 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
462 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
463 double value;
464 iss >> value;
465 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range.
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700466 const bool sane_val = iss.eof() && (value >= 0.1) && (value <= 0.9);
Mathieu Chartier0051be62012-10-12 17:47:11 -0700467 if (!sane_val) {
468 if (ignore_unrecognized) {
469 continue;
470 }
471 LOG(FATAL) << "Invalid option '" << option << "'";
472 return NULL;
473 }
474 parsed->heap_target_utilization_ = value;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800475 } else if (StartsWith(option, "-Xss")) {
476 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700477 if (size == 0) {
478 if (ignore_unrecognized) {
479 continue;
480 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700481 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700482 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700483 return NULL;
484 }
485 parsed->stack_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800486 } else if (StartsWith(option, "-D")) {
487 parsed->properties_.push_back(option.substr(strlen("-D")));
488 } else if (StartsWith(option, "-Xjnitrace:")) {
489 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700490 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800491 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700492 } else if (option == "-Xzygote") {
493 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800494 } else if (option == "-Xint") {
495 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700496 } else if (StartsWith(option, "-Xgc:")) {
497 std::vector<std::string> gc_options;
498 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
499 for (size_t i = 0; i < gc_options.size(); ++i) {
500 if (gc_options[i] == "noconcurrent") {
501 parsed->is_concurrent_gc_enabled_ = false;
502 } else if (gc_options[i] == "concurrent") {
503 parsed->is_concurrent_gc_enabled_ = true;
504 } else {
505 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
506 }
507 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800508 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700509 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800510 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700511 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800512 if (verbose_options[i] == "class") {
513 gLogVerbosity.class_linker = true;
514 } else if (verbose_options[i] == "compiler") {
515 gLogVerbosity.compiler = true;
516 } else if (verbose_options[i] == "heap") {
517 gLogVerbosity.heap = true;
518 } else if (verbose_options[i] == "gc") {
519 gLogVerbosity.gc = true;
520 } else if (verbose_options[i] == "jdwp") {
521 gLogVerbosity.jdwp = true;
522 } else if (verbose_options[i] == "jni") {
523 gLogVerbosity.jni = true;
524 } else if (verbose_options[i] == "monitor") {
525 gLogVerbosity.monitor = true;
526 } else if (verbose_options[i] == "startup") {
527 gLogVerbosity.startup = true;
528 } else if (verbose_options[i] == "third-party-jni") {
529 gLogVerbosity.third_party_jni = true;
530 } else if (verbose_options[i] == "threads") {
531 gLogVerbosity.threads = true;
532 } else {
533 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
534 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700535 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800536 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700537 parsed->jni_globals_max_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800538 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700539 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800540 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700541 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700542 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700543 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700544 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700545 parsed->hook_vfprintf_ =
546 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700547 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700548 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700549 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700550 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700551 } else if (option == "host-prefix") {
552 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800553 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
554 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700555 } else if (option == "-Xmethod-trace") {
556 parsed->method_trace_ = true;
557 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
558 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
559 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
560 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700561 } else if (option == "-Xprofile:threadcpuclock") {
562 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
563 } else if (option == "-Xprofile:wallclock") {
564 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
565 } else if (option == "-Xprofile:dualclock") {
566 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700567 } else if (option == "-small") {
568 parsed->small_mode_ = true;
569 } else if (StartsWith(option, "-small-mode-methods-max:")) {
570 parsed->small_mode_method_threshold_ = ParseIntegerOrDie(option);
571 } else if (StartsWith(option, "-small-mode-methods-size-max:")) {
572 parsed->small_mode_method_dex_size_limit_ = ParseIntegerOrDie(option);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700573 } else {
574 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700575 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700576 LOG(ERROR) << "Unrecognized option " << option;
577 // TODO: this should exit, but for now tolerate unknown options
578 //return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700579 }
580 }
581 }
582
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800583 if (!parsed->is_compiler_ && parsed->image_.empty()) {
584 parsed->image_ += GetAndroidRoot();
585 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700586 }
jeffhaoc1160702011-10-27 15:48:45 -0700587 if (parsed->heap_growth_limit_ == 0) {
588 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
589 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700590
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700591 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700592}
593
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700594bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700595 // TODO: acquire a static mutex on Runtime to avoid racing.
596 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700597 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700598 }
Ian Rogersb726dcb2012-09-05 08:57:23 -0700599 Locks::Init();
Elliott Hughesdcc24742011-09-07 14:02:44 -0700600 instance_ = new Runtime;
601 if (!instance_->Init(options, ignore_unrecognized)) {
602 delete instance_;
603 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700604 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700605 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700606 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700607}
Elliott Hughes0af55432011-08-17 18:37:28 -0700608
Ian Rogers365c1022012-06-22 15:05:28 -0700609static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800610 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700611 return;
612 }
613
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700614 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700615
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800616 mirror::Class* class_loader_class =
617 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700618 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700619
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800620 mirror::AbstractMethod* getSystemClassLoader =
621 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700622 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700623
Jeff Hao5d917302013-02-27 17:57:33 -0800624 JValue result;
Jeff Hao5d917302013-02-27 17:57:33 -0800625 ArgArray arg_array(NULL, 0);
Jeff Hao6474d192013-03-26 14:08:09 -0700626 InvokeWithArgArray(soa, getSystemClassLoader, &arg_array, &result, 'L');
Jeff Hao5d917302013-02-27 17:57:33 -0800627 mirror::ClassLoader* class_loader = down_cast<mirror::ClassLoader*>(result.GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700628 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500629
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700630 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700631
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800632 mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700633 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
634
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800635 mirror::Field* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
636 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500637 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700638
Ian Rogerscfaa4552012-11-26 21:00:08 -0800639 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700640}
641
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700642bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800643 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700644
645 CHECK(host_prefix_.empty()) << host_prefix_;
646
Elliott Hughes225f5a12012-06-11 11:23:48 -0700647 // Pre-allocate an OutOfMemoryError for the double-OOME case.
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700648 Thread* self = Thread::Current();
Ian Rogers62d6c772013-02-27 08:32:07 -0800649 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
Elliott Hughes225f5a12012-06-11 11:23:48 -0700650 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
Ian Rogers62d6c772013-02-27 08:32:07 -0800651 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
Elliott Hughes225f5a12012-06-11 11:23:48 -0700652 self->ClearException();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700653
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700654 // Restore main thread state to kNative as expected by native code.
655 self->TransitionFromRunnableToSuspended(kNative);
656
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700657 started_ = true;
658
Brian Carlstromae826982011-11-09 01:33:42 -0800659 // InitNativeMethods needs to be after started_ so that the classes
660 // it touches will have methods linked to the oat file if necessary.
661 InitNativeMethods();
662
Ian Rogers365c1022012-06-22 15:05:28 -0700663 // Initialize well known thread group values that may be accessed threads while attaching.
664 InitThreadGroups(self);
665
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500666 Thread::FinishStartup();
667
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700668 if (is_zygote_) {
669 if (!InitZygote()) {
670 return false;
671 }
672 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700673 DidForkFromZygote();
674 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700675
Elliott Hughes85d15452011-09-16 17:33:01 -0700676 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700677
Brian Carlstromaded5f72011-10-07 17:15:04 -0700678 CreateSystemClassLoader();
679
Elliott Hughes225f5a12012-06-11 11:23:48 -0700680 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700681
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800682 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700683
684 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700685
686 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700687}
688
Ian Rogers120f1c72012-09-28 17:17:10 -0700689void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
690 DCHECK_GT(threads_being_born_, 0U);
691 threads_being_born_--;
692 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700693 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700694 }
695}
696
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700697// Do zygote-mode-only initialization.
698bool Runtime::InitZygote() {
699 // zygote goes into its own process group
700 setpgid(0,0);
701
702 // See storage config details at http://source.android.com/tech/storage/
703 // Create private mount namespace shared by all children
704 if (unshare(CLONE_NEWNS) == -1) {
705 PLOG(WARNING) << "Failed to unshare()";
706 return false;
707 }
708
709 // Mark rootfs as being a slave so that changes from default
710 // namespace only flow into our children.
711 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
712 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
713 return false;
714 }
715
716 // Create a staging tmpfs that is shared by our children; they will
717 // bind mount storage into their respective private namespaces, which
718 // are isolated from each other.
719 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
720 if (target_base != NULL) {
721 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
722 "uid=0,gid=1028,mode=0050") == -1) {
723 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
724 return false;
725 }
726 }
727
728 return true;
729}
730
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700731void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700732 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700733
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700734 // Create the thread pool.
735 heap_->CreateThreadPool();
736
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700737 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700738
739 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
740 // this will pause the runtime, so we probably want this to come last.
741 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700742}
743
744void Runtime::StartSignalCatcher() {
745 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700746 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700747 }
748}
749
Elliott Hughes85d15452011-09-16 17:33:01 -0700750void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800751 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700752
Elliott Hughes719b3232011-09-25 17:42:19 -0700753 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700754
755 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700756 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700757
Elliott Hughes719b3232011-09-25 17:42:19 -0700758 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700759 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
760 WellKnownClasses::java_lang_Daemons_start);
761 if (env->ExceptionCheck()) {
762 env->ExceptionDescribe();
763 LOG(FATAL) << "Error starting java.lang.Daemons";
764 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700765
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800766 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700767}
768
Elliott Hughes0af55432011-08-17 18:37:28 -0700769bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700770 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700771
Elliott Hughes90a33692011-08-30 13:27:07 -0700772 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
773 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700774 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700775 return false;
776 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800777 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700778
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700779 QuasiAtomic::Startup();
780
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700781 SetJniGlobalsMax(options->jni_globals_max_);
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800782 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700783
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700784 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800785 boot_class_path_string_ = options->boot_class_path_string_;
786 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700787 properties_ = options->properties_;
788
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800789 is_compiler_ = options->is_compiler_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700790 is_zygote_ = options->is_zygote_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700791 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700792
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700793 small_mode_ = options->small_mode_;
794 small_mode_method_threshold_ = options->small_mode_method_threshold_;
795 small_mode_method_dex_size_limit_ = options->small_mode_method_dex_size_limit_;
796
Elliott Hughes0af55432011-08-17 18:37:28 -0700797 vfprintf_ = options->hook_vfprintf_;
798 exit_ = options->hook_exit_;
799 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700800
Elliott Hughesbe759c62011-09-08 19:38:21 -0700801 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700802 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700803
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700804 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800805 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700806 intern_table_ = new InternTable;
807
Logan Chiendd361c92012-04-10 23:40:37 +0800808
Ian Rogers62d6c772013-02-27 08:32:07 -0800809 if (options->interpreter_only_) {
810 GetInstrumentation()->ForceInterpretOnly();
811 }
812
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800813 heap_ = new Heap(options->heap_initial_size_,
814 options->heap_growth_limit_,
Mathieu Chartier0051be62012-10-12 17:47:11 -0700815 options->heap_min_free_,
816 options->heap_max_free_,
817 options->heap_target_utilization_,
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800818 options->heap_maximum_size_,
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700819 options->image_,
820 options->is_concurrent_gc_enabled_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700821
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700822 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700823 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700824
Elliott Hughesa0957642011-09-02 14:27:33 -0700825 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700826
Elliott Hughesbe759c62011-09-08 19:38:21 -0700827 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700828
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800829 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
830 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
831 // thread, we do not get a java peer.
832 Thread* self = Thread::Attach("main", false, NULL, false);
833 CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700834 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700835
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700836 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700837 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700838
Ian Rogers141d6222012-04-05 12:23:06 -0700839 // Now we're attached, we can take the heap lock and validate the heap.
840 GetHeap()->EnableObjectValidation();
841
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800842 CHECK_GE(GetHeap()->GetSpaces().size(), 1U);
843 if (GetHeap()->GetSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800844 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
845 } else {
846 CHECK(options->boot_class_path_ != NULL);
847 CHECK_NE(options->boot_class_path_->size(), 0U);
848 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
849 }
850 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800851 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700852
jeffhaob5e81852012-03-12 11:15:45 -0700853 method_trace_ = options->method_trace_;
854 method_trace_file_ = options->method_trace_file_;
855 method_trace_file_size_ = options->method_trace_file_size_;
856
857 if (options->method_trace_) {
858 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, false);
859 }
860
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800861 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700862 return true;
863}
864
Elliott Hughes038a8062011-09-18 14:12:41 -0700865void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800866 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700867 Thread* self = Thread::Current();
868 JNIEnv* env = self->GetJniEnv();
869
Elliott Hughes418d20f2011-09-22 14:00:39 -0700870 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700871 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700872
Elliott Hughes418d20f2011-09-22 14:00:39 -0700873 // First set up JniConstants, which is used by both the runtime's built-in native
874 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700875 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700876 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700877
Elliott Hughes418d20f2011-09-22 14:00:39 -0700878 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700879 RegisterRuntimeNativeMethods(env);
880
Elliott Hughes418d20f2011-09-22 14:00:39 -0700881 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
882 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
883 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700884 {
885 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
886 std::string reason;
887 self->TransitionFromSuspendedToRunnable();
888 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
889 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
890 }
891 self->TransitionFromRunnableToSuspended(kNative);
892 }
Ian Rogersef28b142012-11-30 14:22:18 -0800893
894 // Initialize well known classes that may invoke runtime native methods.
895 WellKnownClasses::LateInit(env);
896
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800897 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700898}
899
Ian Rogers365c1022012-06-22 15:05:28 -0700900void Runtime::InitThreadGroups(Thread* self) {
901 JNIEnvExt* env = self->GetJniEnv();
902 ScopedJniEnvLocalRefState env_state(env);
903 main_thread_group_ =
904 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
905 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700906 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700907 system_thread_group_ =
908 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
909 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700910 CHECK(system_thread_group_ != NULL || IsCompiler());
911}
912
913jobject Runtime::GetMainThreadGroup() const {
914 CHECK(main_thread_group_ != NULL || IsCompiler());
915 return main_thread_group_;
916}
917
918jobject Runtime::GetSystemThreadGroup() const {
919 CHECK(system_thread_group_ != NULL || IsCompiler());
920 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700921}
922
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700923void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
924#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800925 // Register Throwable first so that registration of other native methods can throw exceptions
926 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700927 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700928 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700929 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700930 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -0700931 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700932 REGISTER(register_java_lang_Class);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700933 REGISTER(register_java_lang_Object);
934 REGISTER(register_java_lang_Runtime);
935 REGISTER(register_java_lang_String);
936 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700937 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700938 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700939 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700940 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700941 REGISTER(register_java_lang_reflect_Field);
942 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400943 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700944 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700945 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700946 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700947 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700948#undef REGISTER
949}
950
Elliott Hughesc967f782012-04-16 10:23:15 -0700951void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700952 GetClassLinker()->DumpForSigQuit(os);
953 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700954 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700955 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700956 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700957
Elliott Hughesc967f782012-04-16 10:23:15 -0700958 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -0800959 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700960}
961
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800962void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700963 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800964 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
965 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
966 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700967 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
968 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800969 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
970 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
971 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
972 }
973}
974
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700975void Runtime::SetStatsEnabled(bool new_state) {
976 if (new_state == true) {
977 GetStats()->Clear(~0);
978 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
979 Thread::Current()->GetStats()->Clear(~0);
980 }
981 stats_enabled_ = new_state;
982}
983
984void Runtime::ResetStats(int kinds) {
985 GetStats()->Clear(kinds & 0xffff);
986 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
987 Thread::Current()->GetStats()->Clear(kinds >> 16);
988}
989
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700990int32_t Runtime::GetStat(int kind) {
991 RuntimeStats* stats;
992 if (kind < (1<<16)) {
993 stats = GetStats();
994 } else {
995 stats = Thread::Current()->GetStats();
996 kind >>= 16;
997 }
998 switch (kind) {
999 case KIND_ALLOCATED_OBJECTS:
1000 return stats->allocated_objects;
1001 case KIND_ALLOCATED_BYTES:
1002 return stats->allocated_bytes;
1003 case KIND_FREED_OBJECTS:
1004 return stats->freed_objects;
1005 case KIND_FREED_BYTES:
1006 return stats->freed_bytes;
1007 case KIND_GC_INVOCATIONS:
1008 return stats->gc_for_alloc_count;
1009 case KIND_CLASS_INIT_COUNT:
1010 return stats->class_init_count;
1011 case KIND_CLASS_INIT_TIME:
1012 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -07001013 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001014 case KIND_EXT_ALLOCATED_OBJECTS:
1015 case KIND_EXT_ALLOCATED_BYTES:
1016 case KIND_EXT_FREED_OBJECTS:
1017 case KIND_EXT_FREED_BYTES:
1018 return 0; // backward compatibility
1019 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -07001020 LOG(FATAL) << "Unknown statistic " << kind;
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001021 return -1; // unreachable
1022 }
1023}
1024
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001025void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -07001026 SignalSet signals;
1027 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001028 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -07001029 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -07001030 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -07001031 signals.Add(SIGUSR1);
1032 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001033}
1034
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001035bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
1036 bool create_peer) {
1037 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -07001038 if (thread_name == NULL) {
1039 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1040 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001041 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001042}
1043
Elliott Hughesd92bec42011-09-02 17:04:36 -07001044void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001045 Thread* self = Thread::Current();
1046 if (self == NULL) {
1047 LOG(FATAL) << "attempting to detach thread that is not attached";
1048 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001049 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001050 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1051 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001052 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001053}
1054
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001055void Runtime::VisitConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001056 if (intern_table_->IsDirty()) {
1057 intern_table_->VisitRoots(visitor, arg);
1058 }
1059 if (class_linker_->IsDirty()) {
1060 class_linker_->VisitRoots(visitor, arg);
1061 }
1062}
1063
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001064void Runtime::VisitNonThreadRoots(RootVisitor* visitor, void* arg) {
Brian Carlstrome24fa612011-09-29 00:53:55 -07001065 java_vm_->VisitRoots(visitor, arg);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001066 if (pre_allocated_OutOfMemoryError_ != NULL) {
1067 visitor(pre_allocated_OutOfMemoryError_, arg);
1068 }
Ian Rogers19846512012-02-24 11:42:47 -08001069 visitor(resolution_method_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001070 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -07001071 visitor(callee_save_methods_[i], arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001072 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001073}
1074
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001075void Runtime::VisitNonConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001076 thread_list_->VisitRoots(visitor, arg);
1077 VisitNonThreadRoots(visitor, arg);
1078}
1079
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001080void Runtime::DirtyRoots() {
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001081 CHECK(intern_table_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001082 intern_table_->Dirty();
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001083 CHECK(class_linker_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001084 class_linker_->Dirty();
1085}
1086
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001087void Runtime::VisitRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001088 VisitConcurrentRoots(visitor, arg);
1089 VisitNonConcurrentRoots(visitor, arg);
1090}
1091
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001092mirror::AbstractMethod* Runtime::CreateResolutionMethod() {
1093 mirror::Class* method_class = mirror::AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001094 Thread* self = Thread::Current();
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001095 SirtRef<mirror::AbstractMethod>
1096 method(self, down_cast<mirror::AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001097 method->SetDeclaringClass(method_class);
1098 // TODO: use a special method for resolution method saves
1099 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Jeff Hao58df3272013-04-22 15:28:53 -07001100 // When compiling, the code pointer will get set later when the image is loaded.
Jeff Hao0aba0ba2013-06-03 14:49:28 -07001101 Runtime* r = Runtime::Current();
1102 ClassLinker* cl = r->GetClassLinker();
1103 method->SetEntryPointFromCompiledCode(r->IsCompiler() ? NULL : GetResolutionTrampoline(cl));
Ian Rogers19846512012-02-24 11:42:47 -08001104 return method.get();
1105}
1106
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001107mirror::AbstractMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
1108 CalleeSaveType type) {
1109 mirror::Class* method_class = mirror::AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001110 Thread* self = Thread::Current();
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001111 SirtRef<mirror::AbstractMethod>
1112 method(self, down_cast<mirror::AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001113 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001114 // TODO: use a special method for callee saves
Ian Rogers19846512012-02-24 11:42:47 -08001115 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Jeff Haoaa4a7932013-05-13 11:28:27 -07001116 method->SetEntryPointFromCompiledCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001117 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001118 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1119 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1120 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1121 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001122 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1123 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001124 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1125 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1126 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1127 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1128 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1129 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1130 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1131 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1132 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1133 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1134 (1 << art::arm::S30) | (1 << art::arm::S31);
1135 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1136 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1137 __builtin_popcount(fp_spills) /* fprs */ +
1138 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001139 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001140 method->SetCoreSpillMask(core_spills);
1141 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001142 } else if (instruction_set == kMips) {
1143 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1144 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001145 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -07001146 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001147 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001148 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001149 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001150 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001151 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
1152 kPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001153 method->SetFrameSizeInBytes(frame_size);
1154 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001155 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001156 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001157 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1158 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1159 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1160 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1161 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1162 1 /* Method* */) * kPointerSize, kStackAlignment);
1163 method->SetFrameSizeInBytes(frame_size);
1164 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001165 method->SetFpSpillMask(0);
1166 } else {
1167 UNIMPLEMENTED(FATAL);
1168 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001169 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001170}
1171
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001172void Runtime::SetCalleeSaveMethod(mirror::AbstractMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001173 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001174 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001175}
1176
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001177const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001178 if (class_loader == NULL) {
1179 return GetClassLinker()->GetBootClassPath();
1180 }
1181 CHECK(UseCompileTimeClassPath());
1182 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1183 CHECK(it != compile_time_class_paths_.end());
1184 return it->second;
1185}
1186
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001187void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001188 CHECK(!IsStarted());
1189 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001190 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001191}
1192
Carl Shapiro1fb86202011-06-27 17:43:13 -07001193} // namespace art