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Elliott Hughes2faa5f12012-01-30 14:42:07 -08001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
Carl Shapiro1fb86202011-06-27 17:43:13 -070016
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070017#include "runtime.h"
Carl Shapiro1fb86202011-06-27 17:43:13 -070018
Brian Carlstrombd86bcc2013-03-10 20:26:16 -070019// sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc
20#include <sys/mount.h>
21#include <linux/fs.h>
22
Brian Carlstromdbf05b72011-12-15 00:55:24 -080023#include <signal.h>
Elliott Hughesd06a6c72012-05-30 17:59:06 -070024#include <sys/syscall.h>
Brian Carlstromdbf05b72011-12-15 00:55:24 -080025
Elliott Hughesffe67362011-07-17 12:09:27 -070026#include <cstdio>
27#include <cstdlib>
Brian Carlstrom8a436592011-08-15 21:27:23 -070028#include <limits>
Carl Shapiro2ed144c2011-07-26 16:52:08 -070029#include <vector>
Elliott Hughesffe67362011-07-17 12:09:27 -070030
Ian Rogers166db042013-07-26 12:05:57 -070031#include "arch/arm/registers_arm.h"
32#include "arch/mips/registers_mips.h"
33#include "arch/x86/registers_x86.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080034#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070035#include "class_linker.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070036#include "debugger.h"
Ian Rogers1d54e732013-05-02 21:10:01 -070037#include "gc/accounting/card_table-inl.h"
38#include "gc/heap.h"
39#include "gc/space/space.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070040#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080041#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070042#include "intern_table.h"
Jeff Hao5d917302013-02-27 17:57:33 -080043#include "invoke_arg_array_builder.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070044#include "jni_internal.h"
Brian Carlstromea46f952013-07-30 01:26:50 -070045#include "mirror/art_field-inl.h"
46#include "mirror/art_method-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080047#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080048#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080049#include "mirror/class_loader.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080050#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070051#include "monitor.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070052#include "oat_file.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070053#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070054#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070055#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070056#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070057#include "sirt_ref.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070058#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070059#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070060#include "trace.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070061#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070062#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070063#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070064
Brian Carlstrom7934ac22013-07-26 10:54:15 -070065#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070066
Carl Shapiro1fb86202011-06-27 17:43:13 -070067namespace art {
68
Carl Shapiro2ed144c2011-07-26 16:52:08 -070069Runtime* Runtime::instance_ = NULL;
70
Elliott Hughesdcc24742011-09-07 14:02:44 -070071Runtime::Runtime()
Elliott Hughesd9c67be2012-02-02 19:54:06 -080072 : is_compiler_(false),
73 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070074 is_concurrent_gc_enabled_(true),
Elliott Hughes6cf23882012-06-15 15:42:07 -070075 default_stack_size_(0),
Elliott Hughesb3bd5f02012-03-08 21:05:27 -080076 heap_(NULL),
Elliott Hughesc33a32b2011-10-11 18:18:07 -070077 monitor_list_(NULL),
Elliott Hughesdcc24742011-09-07 14:02:44 -070078 thread_list_(NULL),
79 intern_table_(NULL),
80 class_linker_(NULL),
81 signal_catcher_(NULL),
82 java_vm_(NULL),
Elliott Hughes225f5a12012-06-11 11:23:48 -070083 pre_allocated_OutOfMemoryError_(NULL),
Ian Rogers19846512012-02-24 11:42:47 -080084 resolution_method_(NULL),
Ian Rogers7c3757f2012-02-15 17:18:53 -080085 system_class_loader_(NULL),
Ian Rogers120f1c72012-09-28 17:17:10 -070086 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -070087 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -080088 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -070089 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070090 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -070091 finished_starting_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -070092 vfprintf_(NULL),
93 exit_(NULL),
Elliott Hughes9d5ccec2011-09-19 13:19:50 -070094 abort_(NULL),
jeffhao2692b572011-12-16 15:42:28 -080095 stats_enabled_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -070096 method_trace_(0),
97 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -080098 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -070099 use_compile_time_class_path_(false),
100 main_thread_group_(NULL),
Brian Carlstrom265091e2013-01-30 14:08:26 -0800101 system_thread_group_(NULL) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700102 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -0700103 callee_save_methods_[i] = NULL;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700104 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700105}
106
Carl Shapiro61e019d2011-07-14 16:53:09 -0700107Runtime::~Runtime() {
Ian Rogers120f1c72012-09-28 17:17:10 -0700108 Thread* self = Thread::Current();
109 {
110 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
111 shutting_down_started_ = true;
112 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700113 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700114 }
115 shutting_down_ = true;
116 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800117 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700118
Mathieu Chartiera6399032012-06-11 18:49:50 -0700119 // Make sure to let the GC complete if it is running.
Ian Rogers120f1c72012-09-28 17:17:10 -0700120 heap_->WaitForConcurrentGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800121 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700122
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700123 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700124 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700125 delete signal_catcher_;
126
Elliott Hughes038a8062011-09-18 14:12:41 -0700127 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700128 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700129 delete monitor_list_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700130 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800131 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700132 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700133 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700134 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700135 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200136 verifier::MethodVerifier::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;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700140}
141
Elliott Hughese0918552011-10-28 17:18:29 -0700142struct AbortState {
143 void Dump(std::ostream& os) {
Ian Rogersf08e4732013-04-09 09:45:49 -0700144 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700145 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
146 return;
147 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700148 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700149 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800150 if (Runtime::Current() == NULL) {
151 os << "(Runtime does not yet exist!)\n";
152 return;
153 }
Elliott Hughese0918552011-10-28 17:18:29 -0700154 Thread* self = Thread::Current();
155 if (self == NULL) {
156 os << "(Aborting thread was not attached to runtime!)\n";
157 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700158 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
159 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
160 // The code below should be made robust to this.
161 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700162 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800163 self->Dump(os);
164 if (self->IsExceptionPending()) {
Ian Rogers62d6c772013-02-27 08:32:07 -0800165 ThrowLocation throw_location;
166 mirror::Throwable* exception = self->GetException(&throw_location);
167 os << "Pending exception " << PrettyTypeOf(exception)
168 << " thrown by '" << throw_location.Dump() << "\n"
169 << exception->Dump();
Elliott Hughes899e7892012-01-24 14:57:32 -0800170 }
Elliott Hughese0918552011-10-28 17:18:29 -0700171 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700172 DumpAllThreads(os, self);
173 }
174
175 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
176 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
177 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700178 if (!tll_already_held || !ml_already_held) {
179 os << "Dumping all threads without appropriate locks held:"
180 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700181 << (!ml_already_held ? " mutator lock" : "")
182 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700183 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700184 os << "All threads:\n";
185 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700186 }
187};
188
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700189void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700190 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800191
Elliott Hughes131aef82012-01-27 11:53:35 -0800192 // Ensure that we don't have multiple threads trying to abort at once,
193 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700194 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800195
Elliott Hughesffe67362011-07-17 12:09:27 -0700196 // Get any pending output out of the way.
197 fflush(NULL);
198
199 // Many people have difficulty distinguish aborts from crashes,
200 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700201 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800202 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700203
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700204 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700205 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700206 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700207 Runtime::Current()->abort_();
208 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700209 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700210 }
211
Elliott Hughesdd623db2013-06-11 11:20:23 -0700212#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700213 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
214 // which POSIX defines in terms of raise(3), which POSIX defines in terms
215 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
216 // libpthread, which means the stacks we dump would be useless. Calling
217 // tgkill(2) directly avoids that.
218 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700219 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
220 // 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 -0800221 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700222#else
223 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700224#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700225 // notreached
226}
227
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700228bool Runtime::PreZygoteFork() {
229 heap_->PreZygoteFork();
230 return true;
231}
232
Elliott Hughesbf86d042011-08-31 17:53:14 -0700233void Runtime::CallExitHook(jint status) {
234 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700235 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700236 exit_(status);
237 LOG(WARNING) << "Exit hook returned instead of exiting!";
238 }
239}
240
Brian Carlstrom8a436592011-08-15 21:27:23 -0700241// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
242// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
243// [gG] gigabytes.
244//
245// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700246// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
247// of 1024.
248//
249// The spec says the -Xmx and -Xms options must be multiples of 1024. It
250// doesn't say anything about -Xss.
251//
252// Returns 0 (a useless size) if "s" is malformed or specifies a low or
253// non-evenly-divisible value.
254//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800255size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700256 // strtoul accepts a leading [+-], which we don't want,
257 // so make sure our string starts with a decimal digit.
258 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700259 char* s2;
260 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700261 if (s2 != s) {
262 // s2 should be pointing just after the number.
263 // If this is the end of the string, the user
264 // has specified a number of bytes. Otherwise,
265 // there should be exactly one more character
266 // that specifies a multiplier.
267 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700268 // The remainder of the string is either a single multiplier
269 // character, or nothing to indicate that the value is in
270 // bytes.
271 char c = *s2++;
272 if (*s2 == '\0') {
273 size_t mul;
274 if (c == '\0') {
275 mul = 1;
276 } else if (c == 'k' || c == 'K') {
277 mul = KB;
278 } else if (c == 'm' || c == 'M') {
279 mul = MB;
280 } else if (c == 'g' || c == 'G') {
281 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700282 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700283 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700284 return 0;
285 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700286
287 if (val <= std::numeric_limits<size_t>::max() / mul) {
288 val *= mul;
289 } else {
290 // Clamp to a multiple of 1024.
291 val = std::numeric_limits<size_t>::max() & ~(1024-1);
292 }
293 } else {
294 // There's more than one character after the numeric part.
295 return 0;
296 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700297 }
298 // The man page says that a -Xm value must be a multiple of 1024.
299 if (val % div == 0) {
300 return val;
301 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700302 }
303 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700304 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700305}
306
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800307size_t ParseIntegerOrDie(const std::string& s) {
308 std::string::size_type colon = s.find(':');
309 if (colon == std::string::npos) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700310 LOG(FATAL) << "Missing integer: " << s;
311 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800312 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700313 char* end;
314 size_t result = strtoul(begin, &end, 10);
315 if (begin == end || *end != '\0') {
316 LOG(FATAL) << "Failed to parse integer in: " << s;
317 }
318 return result;
319}
320
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700321Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700322 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800323 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
324 if (boot_class_path_string != NULL) {
325 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700326 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800327 const char* class_path_string = getenv("CLASSPATH");
328 if (class_path_string != NULL) {
329 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700330 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700331 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
332 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700333
Ian Rogers1d54e732013-05-02 21:10:01 -0700334 parsed->heap_initial_size_ = gc::Heap::kDefaultInitialSize;
335 parsed->heap_maximum_size_ = gc::Heap::kDefaultMaximumSize;
336 parsed->heap_min_free_ = gc::Heap::kDefaultMinFree;
337 parsed->heap_max_free_ = gc::Heap::kDefaultMaxFree;
338 parsed->heap_target_utilization_ = gc::Heap::kDefaultTargetUtilization;
Elliott Hughes6cf23882012-06-15 15:42:07 -0700339 parsed->heap_growth_limit_ = 0; // 0 means no growth limit.
Mathieu Chartier63a54342013-07-23 13:17:59 -0700340 // Default to number of processors minus one since the main GC thread also does work.
341 parsed->heap_gc_threads_ = sysconf(_SC_NPROCESSORS_CONF) - 1;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700342 parsed->stack_size_ = 0; // 0 means default.
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700343 parsed->low_memory_mode_ = false;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700344
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800345 parsed->is_compiler_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700346 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800347 parsed->interpreter_only_ = false;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700348 parsed->is_concurrent_gc_enabled_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700349
Elliott Hughesfc861622011-10-17 17:57:47 -0700350 parsed->lock_profiling_threshold_ = 0;
351 parsed->hook_is_sensitive_thread_ = NULL;
352
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700353 parsed->hook_vfprintf_ = vfprintf;
354 parsed->hook_exit_ = exit;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700355 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700356
buzbeea024a062013-07-31 10:47:37 -0700357 parsed->compiler_filter_ = Runtime::kDefaultCompilerFilter;
358 parsed->huge_method_threshold_ = Runtime::kDefaultHugeMethodThreshold;
359 parsed->large_method_threshold_ = Runtime::kDefaultLargeMethodThreshold;
360 parsed->small_method_threshold_ = Runtime::kDefaultSmallMethodThreshold;
361 parsed->tiny_method_threshold_ = Runtime::kDefaultTinyMethodThreshold;
362 parsed->num_dex_methods_threshold_ = Runtime::kDefaultNumDexMethodsThreshold;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700363
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700364 parsed->sea_ir_mode_ = false;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700365// gLogVerbosity.class_linker = true; // TODO: don't check this in!
366// gLogVerbosity.compiler = true; // TODO: don't check this in!
367// gLogVerbosity.heap = true; // TODO: don't check this in!
368// gLogVerbosity.gc = true; // TODO: don't check this in!
369// gLogVerbosity.jdwp = true; // TODO: don't check this in!
370// gLogVerbosity.jni = true; // TODO: don't check this in!
371// gLogVerbosity.monitor = true; // TODO: don't check this in!
372// gLogVerbosity.startup = true; // TODO: don't check this in!
373// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
374// gLogVerbosity.threads = true; // TODO: don't check this in!
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800375
jeffhaob5e81852012-03-12 11:15:45 -0700376 parsed->method_trace_ = false;
377 parsed->method_trace_file_ = "/data/method-trace-file.bin";
378 parsed->method_trace_file_size_ = 10 * MB;
379
Brian Carlstrom8a436592011-08-15 21:27:23 -0700380 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800381 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700382 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700383 LOG(INFO) << "option[" << i << "]=" << option;
384 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800385 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800386 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700387 } else if (option == "-classpath" || option == "-cp") {
388 // TODO: support -Djava.class.path
389 i++;
390 if (i == options.size()) {
391 // TODO: usage
392 LOG(FATAL) << "Missing required class path value for " << option;
393 return NULL;
394 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800395 const StringPiece& value = options[i].first;
396 parsed->class_path_string_ = value.data();
397 } else if (option == "bootclasspath") {
398 parsed->boot_class_path_
399 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800400 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800401 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800402 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700403 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800404 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
405 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700406 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
407 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
408 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
409 return NULL;
410 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800411 } else if (StartsWith(option, "-Xms")) {
412 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700413 if (size == 0) {
414 if (ignore_unrecognized) {
415 continue;
416 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700417 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700418 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700419 return NULL;
420 }
421 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800422 } else if (StartsWith(option, "-Xmx")) {
423 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700424 if (size == 0) {
425 if (ignore_unrecognized) {
426 continue;
427 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700428 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700429 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700430 return NULL;
431 }
432 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800433 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
434 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700435 if (size == 0) {
436 if (ignore_unrecognized) {
437 continue;
438 }
439 // TODO: usage
440 LOG(FATAL) << "Failed to parse " << option;
441 return NULL;
442 }
443 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700444 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
445 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
446 if (size == 0) {
447 if (ignore_unrecognized) {
448 continue;
449 }
450 // TODO: usage
451 LOG(FATAL) << "Failed to parse " << option;
452 return NULL;
453 }
454 parsed->heap_min_free_ = size;
455 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
456 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
457 if (size == 0) {
458 if (ignore_unrecognized) {
459 continue;
460 }
461 // TODO: usage
462 LOG(FATAL) << "Failed to parse " << option;
463 return NULL;
464 }
465 parsed->heap_max_free_ = size;
466 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
467 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
468 double value;
469 iss >> value;
470 // 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 -0700471 const bool sane_val = iss.eof() && (value >= 0.1) && (value <= 0.9);
Mathieu Chartier0051be62012-10-12 17:47:11 -0700472 if (!sane_val) {
473 if (ignore_unrecognized) {
474 continue;
475 }
476 LOG(FATAL) << "Invalid option '" << option << "'";
477 return NULL;
478 }
479 parsed->heap_target_utilization_ = value;
Mathieu Chartier63a54342013-07-23 13:17:59 -0700480 } else if (StartsWith(option, "-XX:HeapGCThreads=")) {
481 parsed->heap_gc_threads_ =
482 ParseMemoryOption(option.substr(strlen("-XX:HeapGCThreads=")).c_str(), 1024);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800483 } else if (StartsWith(option, "-Xss")) {
484 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700485 if (size == 0) {
486 if (ignore_unrecognized) {
487 continue;
488 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700489 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700490 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700491 return NULL;
492 }
493 parsed->stack_size_ = size;
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700494 } else if (option == "-XX:LowMemoryMode") {
495 parsed->low_memory_mode_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800496 } else if (StartsWith(option, "-D")) {
497 parsed->properties_.push_back(option.substr(strlen("-D")));
498 } else if (StartsWith(option, "-Xjnitrace:")) {
499 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700500 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800501 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700502 } else if (option == "-Xzygote") {
503 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800504 } else if (option == "-Xint") {
505 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700506 } else if (StartsWith(option, "-Xgc:")) {
507 std::vector<std::string> gc_options;
508 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
509 for (size_t i = 0; i < gc_options.size(); ++i) {
510 if (gc_options[i] == "noconcurrent") {
511 parsed->is_concurrent_gc_enabled_ = false;
512 } else if (gc_options[i] == "concurrent") {
513 parsed->is_concurrent_gc_enabled_ = true;
514 } else {
515 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
516 }
517 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800518 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700519 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800520 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700521 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800522 if (verbose_options[i] == "class") {
523 gLogVerbosity.class_linker = true;
524 } else if (verbose_options[i] == "compiler") {
525 gLogVerbosity.compiler = true;
526 } else if (verbose_options[i] == "heap") {
527 gLogVerbosity.heap = true;
528 } else if (verbose_options[i] == "gc") {
529 gLogVerbosity.gc = true;
530 } else if (verbose_options[i] == "jdwp") {
531 gLogVerbosity.jdwp = true;
532 } else if (verbose_options[i] == "jni") {
533 gLogVerbosity.jni = true;
534 } else if (verbose_options[i] == "monitor") {
535 gLogVerbosity.monitor = true;
536 } else if (verbose_options[i] == "startup") {
537 gLogVerbosity.startup = true;
538 } else if (verbose_options[i] == "third-party-jni") {
539 gLogVerbosity.third_party_jni = true;
540 } else if (verbose_options[i] == "threads") {
541 gLogVerbosity.threads = true;
542 } else {
543 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
544 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700545 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800546 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughes2010a602013-07-02 14:17:23 -0700547 // Silently ignored for backwards compatibility.
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800548 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700549 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800550 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700551 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700552 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700553 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700554 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700555 parsed->hook_vfprintf_ =
556 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700557 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700558 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700559 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700560 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700561 } else if (option == "host-prefix") {
562 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800563 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
564 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700565 } else if (option == "-Xmethod-trace") {
566 parsed->method_trace_ = true;
567 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
568 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
569 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
570 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700571 } else if (option == "-Xprofile:threadcpuclock") {
572 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
573 } else if (option == "-Xprofile:wallclock") {
574 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
575 } else if (option == "-Xprofile:dualclock") {
576 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
buzbeea024a062013-07-31 10:47:37 -0700577 } else if (option == "-compiler-filter:interpret-only") {
578 parsed->compiler_filter_ = kInterpretOnly;
579 } else if (option == "-compiler-filter:defer-compilation") {
580 parsed->compiler_filter_ = kDeferCompilation;
581 } else if (option == "-compiler-filter:space") {
582 parsed->compiler_filter_ = kSpace;
583 } else if (option == "-compiler-filter:balanced") {
584 parsed->compiler_filter_ = kBalanced;
585 } else if (option == "-compiler-filter:speed") {
586 parsed->compiler_filter_ = kSpeed;
Brian Carlstrom2ce745c2013-07-17 17:44:30 -0700587 } else if (option == "-sea_ir") {
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700588 parsed->sea_ir_mode_ = true;
buzbeea024a062013-07-31 10:47:37 -0700589 } else if (StartsWith(option, "-huge-method-max:")) {
590 parsed->huge_method_threshold_ = ParseIntegerOrDie(option);
591 } else if (StartsWith(option, "-large-method-max:")) {
592 parsed->large_method_threshold_ = ParseIntegerOrDie(option);
593 } else if (StartsWith(option, "-small-method-max:")) {
594 parsed->small_method_threshold_ = ParseIntegerOrDie(option);
595 } else if (StartsWith(option, "-tiny-method-max:")) {
596 parsed->tiny_method_threshold_ = ParseIntegerOrDie(option);
597 } else if (StartsWith(option, "-num-dex-methods-max:")) {
598 parsed->num_dex_methods_threshold_ = ParseIntegerOrDie(option);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700599 } else {
600 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700601 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700602 LOG(ERROR) << "Unrecognized option " << option;
603 // TODO: this should exit, but for now tolerate unknown options
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700604 // return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700605 }
606 }
607 }
608
Brian Carlstromfb67b722013-06-24 23:41:51 -0700609 // If a reference to the dalvik core.jar snuck in, replace it with
610 // the art specific version. This can happen with on device
611 // boot.art/boot.oat generation by GenerateImage which relies on the
612 // value of BOOTCLASSPATH.
613 std::string core_jar("/core.jar");
614 size_t core_jar_pos = parsed->boot_class_path_string_.find(core_jar);
615 if (core_jar_pos != std::string::npos) {
616 parsed->boot_class_path_string_.replace(core_jar_pos, core_jar.size(), "/core-libart.jar");
617 }
618
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800619 if (!parsed->is_compiler_ && parsed->image_.empty()) {
620 parsed->image_ += GetAndroidRoot();
621 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700622 }
jeffhaoc1160702011-10-27 15:48:45 -0700623 if (parsed->heap_growth_limit_ == 0) {
624 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
625 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700626
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700627 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700628}
629
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700630bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700631 // TODO: acquire a static mutex on Runtime to avoid racing.
632 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700633 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700634 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700635 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700636 instance_ = new Runtime;
637 if (!instance_->Init(options, ignore_unrecognized)) {
638 delete instance_;
639 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700640 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700641 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700642 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700643}
Elliott Hughes0af55432011-08-17 18:37:28 -0700644
Ian Rogers365c1022012-06-22 15:05:28 -0700645static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800646 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700647 return;
648 }
649
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700650 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700651
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800652 mirror::Class* class_loader_class =
653 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700654 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700655
Brian Carlstromea46f952013-07-30 01:26:50 -0700656 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800657 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700658 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700659
Jeff Hao5d917302013-02-27 17:57:33 -0800660 JValue result;
Jeff Hao5d917302013-02-27 17:57:33 -0800661 ArgArray arg_array(NULL, 0);
Jeff Hao6474d192013-03-26 14:08:09 -0700662 InvokeWithArgArray(soa, getSystemClassLoader, &arg_array, &result, 'L');
Jeff Hao5d917302013-02-27 17:57:33 -0800663 mirror::ClassLoader* class_loader = down_cast<mirror::ClassLoader*>(result.GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700664 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500665
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700666 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700667
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800668 mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700669 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
670
Brian Carlstromea46f952013-07-30 01:26:50 -0700671 mirror::ArtField* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
672 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500673 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700674
Ian Rogerscfaa4552012-11-26 21:00:08 -0800675 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700676}
677
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700678bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800679 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700680
681 CHECK(host_prefix_.empty()) << host_prefix_;
682
Elliott Hughes225f5a12012-06-11 11:23:48 -0700683 // Pre-allocate an OutOfMemoryError for the double-OOME case.
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700684 Thread* self = Thread::Current();
Ian Rogers62d6c772013-02-27 08:32:07 -0800685 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
Elliott Hughes225f5a12012-06-11 11:23:48 -0700686 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
Ian Rogers62d6c772013-02-27 08:32:07 -0800687 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
Elliott Hughes225f5a12012-06-11 11:23:48 -0700688 self->ClearException();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700689
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700690 // Restore main thread state to kNative as expected by native code.
691 self->TransitionFromRunnableToSuspended(kNative);
692
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700693 started_ = true;
694
Brian Carlstromae826982011-11-09 01:33:42 -0800695 // InitNativeMethods needs to be after started_ so that the classes
696 // it touches will have methods linked to the oat file if necessary.
697 InitNativeMethods();
698
Ian Rogers365c1022012-06-22 15:05:28 -0700699 // Initialize well known thread group values that may be accessed threads while attaching.
700 InitThreadGroups(self);
701
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500702 Thread::FinishStartup();
703
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700704 if (is_zygote_) {
705 if (!InitZygote()) {
706 return false;
707 }
708 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700709 DidForkFromZygote();
710 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700711
Elliott Hughes85d15452011-09-16 17:33:01 -0700712 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700713
Brian Carlstromaded5f72011-10-07 17:15:04 -0700714 CreateSystemClassLoader();
715
Elliott Hughes225f5a12012-06-11 11:23:48 -0700716 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700717
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800718 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700719
720 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700721
722 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700723}
724
Ian Rogers120f1c72012-09-28 17:17:10 -0700725void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
726 DCHECK_GT(threads_being_born_, 0U);
727 threads_being_born_--;
728 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700729 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700730 }
731}
732
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700733// Do zygote-mode-only initialization.
734bool Runtime::InitZygote() {
735 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700736 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700737
738 // See storage config details at http://source.android.com/tech/storage/
739 // Create private mount namespace shared by all children
740 if (unshare(CLONE_NEWNS) == -1) {
741 PLOG(WARNING) << "Failed to unshare()";
742 return false;
743 }
744
745 // Mark rootfs as being a slave so that changes from default
746 // namespace only flow into our children.
747 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
748 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
749 return false;
750 }
751
752 // Create a staging tmpfs that is shared by our children; they will
753 // bind mount storage into their respective private namespaces, which
754 // are isolated from each other.
755 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
756 if (target_base != NULL) {
757 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
758 "uid=0,gid=1028,mode=0050") == -1) {
759 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
760 return false;
761 }
762 }
763
764 return true;
765}
766
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700767void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700768 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700769
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700770 // Create the thread pool.
771 heap_->CreateThreadPool();
772
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700773 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700774
775 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
776 // this will pause the runtime, so we probably want this to come last.
777 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700778}
779
780void Runtime::StartSignalCatcher() {
781 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700782 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700783 }
784}
785
Elliott Hughes85d15452011-09-16 17:33:01 -0700786void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800787 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700788
Elliott Hughes719b3232011-09-25 17:42:19 -0700789 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700790
791 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700792 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700793
Elliott Hughes719b3232011-09-25 17:42:19 -0700794 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700795 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
796 WellKnownClasses::java_lang_Daemons_start);
797 if (env->ExceptionCheck()) {
798 env->ExceptionDescribe();
799 LOG(FATAL) << "Error starting java.lang.Daemons";
800 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700801
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800802 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700803}
804
Elliott Hughes0af55432011-08-17 18:37:28 -0700805bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700806 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700807
Elliott Hughes90a33692011-08-30 13:27:07 -0700808 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
809 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700810 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700811 return false;
812 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800813 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700814
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700815 QuasiAtomic::Startup();
816
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800817 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700818
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700819 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800820 boot_class_path_string_ = options->boot_class_path_string_;
821 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700822 properties_ = options->properties_;
823
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800824 is_compiler_ = options->is_compiler_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700825 is_zygote_ = options->is_zygote_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700826 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700827
buzbeea024a062013-07-31 10:47:37 -0700828 compiler_filter_ = options->compiler_filter_;
829 huge_method_threshold_ = options->huge_method_threshold_;
830 large_method_threshold_ = options->large_method_threshold_;
831 small_method_threshold_ = options->small_method_threshold_;
832 tiny_method_threshold_ = options->tiny_method_threshold_;
833 num_dex_methods_threshold_ = options->num_dex_methods_threshold_;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700834
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700835 sea_ir_mode_ = options->sea_ir_mode_;
Elliott Hughes0af55432011-08-17 18:37:28 -0700836 vfprintf_ = options->hook_vfprintf_;
837 exit_ = options->hook_exit_;
838 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700839
Elliott Hughesbe759c62011-09-08 19:38:21 -0700840 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700841 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700842
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700843 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800844 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700845 intern_table_ = new InternTable;
846
Logan Chiendd361c92012-04-10 23:40:37 +0800847
Ian Rogers62d6c772013-02-27 08:32:07 -0800848 if (options->interpreter_only_) {
849 GetInstrumentation()->ForceInterpretOnly();
850 }
851
Ian Rogers1d54e732013-05-02 21:10:01 -0700852 heap_ = new gc::Heap(options->heap_initial_size_,
853 options->heap_growth_limit_,
854 options->heap_min_free_,
855 options->heap_max_free_,
856 options->heap_target_utilization_,
857 options->heap_maximum_size_,
858 options->image_,
Mathieu Chartier63a54342013-07-23 13:17:59 -0700859 options->is_concurrent_gc_enabled_,
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700860 options->heap_gc_threads_,
861 options->low_memory_mode_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700862
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700863 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700864 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700865
Elliott Hughesa0957642011-09-02 14:27:33 -0700866 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700867
Elliott Hughesbe759c62011-09-08 19:38:21 -0700868 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700869
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800870 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
871 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
872 // thread, we do not get a java peer.
873 Thread* self = Thread::Attach("main", false, NULL, false);
874 CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700875 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700876
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700877 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700878 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700879
Ian Rogers141d6222012-04-05 12:23:06 -0700880 // Now we're attached, we can take the heap lock and validate the heap.
881 GetHeap()->EnableObjectValidation();
882
Ian Rogers1d54e732013-05-02 21:10:01 -0700883 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
884 if (GetHeap()->GetContinuousSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800885 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
886 } else {
887 CHECK(options->boot_class_path_ != NULL);
888 CHECK_NE(options->boot_class_path_->size(), 0U);
889 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
890 }
891 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800892 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700893
jeffhaob5e81852012-03-12 11:15:45 -0700894 method_trace_ = options->method_trace_;
895 method_trace_file_ = options->method_trace_file_;
896 method_trace_file_size_ = options->method_trace_file_size_;
897
898 if (options->method_trace_) {
899 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, false);
900 }
901
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800902 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700903 return true;
904}
905
Elliott Hughes038a8062011-09-18 14:12:41 -0700906void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800907 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700908 Thread* self = Thread::Current();
909 JNIEnv* env = self->GetJniEnv();
910
Elliott Hughes418d20f2011-09-22 14:00:39 -0700911 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700912 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700913
Elliott Hughes418d20f2011-09-22 14:00:39 -0700914 // First set up JniConstants, which is used by both the runtime's built-in native
915 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700916 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700917 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700918
Elliott Hughes418d20f2011-09-22 14:00:39 -0700919 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700920 RegisterRuntimeNativeMethods(env);
921
Elliott Hughes418d20f2011-09-22 14:00:39 -0700922 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
923 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
924 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700925 {
926 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
927 std::string reason;
928 self->TransitionFromSuspendedToRunnable();
929 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
930 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
931 }
932 self->TransitionFromRunnableToSuspended(kNative);
933 }
Ian Rogersef28b142012-11-30 14:22:18 -0800934
935 // Initialize well known classes that may invoke runtime native methods.
936 WellKnownClasses::LateInit(env);
937
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800938 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700939}
940
Ian Rogers365c1022012-06-22 15:05:28 -0700941void Runtime::InitThreadGroups(Thread* self) {
942 JNIEnvExt* env = self->GetJniEnv();
943 ScopedJniEnvLocalRefState env_state(env);
944 main_thread_group_ =
945 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
946 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700947 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700948 system_thread_group_ =
949 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
950 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700951 CHECK(system_thread_group_ != NULL || IsCompiler());
952}
953
954jobject Runtime::GetMainThreadGroup() const {
955 CHECK(main_thread_group_ != NULL || IsCompiler());
956 return main_thread_group_;
957}
958
959jobject Runtime::GetSystemThreadGroup() const {
960 CHECK(system_thread_group_ != NULL || IsCompiler());
961 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700962}
963
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700964void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
965#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800966 // Register Throwable first so that registration of other native methods can throw exceptions
967 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700968 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700969 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700970 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700971 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -0700972 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700973 REGISTER(register_java_lang_Class);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700974 REGISTER(register_java_lang_Object);
975 REGISTER(register_java_lang_Runtime);
976 REGISTER(register_java_lang_String);
977 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700978 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700979 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700980 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700981 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700982 REGISTER(register_java_lang_reflect_Field);
983 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400984 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700985 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700986 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700987 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700988 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700989#undef REGISTER
990}
991
Elliott Hughesc967f782012-04-16 10:23:15 -0700992void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700993 GetClassLinker()->DumpForSigQuit(os);
994 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700995 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700996 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700997 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700998
Elliott Hughesc967f782012-04-16 10:23:15 -0700999 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -08001000 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -07001001}
1002
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001003void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -07001004 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001005 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
1006 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
1007 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001008 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
1009 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001010 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
1011 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
1012 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
1013 }
1014}
1015
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001016void Runtime::SetStatsEnabled(bool new_state) {
1017 if (new_state == true) {
1018 GetStats()->Clear(~0);
1019 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1020 Thread::Current()->GetStats()->Clear(~0);
1021 }
1022 stats_enabled_ = new_state;
1023}
1024
1025void Runtime::ResetStats(int kinds) {
1026 GetStats()->Clear(kinds & 0xffff);
1027 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1028 Thread::Current()->GetStats()->Clear(kinds >> 16);
1029}
1030
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001031int32_t Runtime::GetStat(int kind) {
1032 RuntimeStats* stats;
1033 if (kind < (1<<16)) {
1034 stats = GetStats();
1035 } else {
1036 stats = Thread::Current()->GetStats();
1037 kind >>= 16;
1038 }
1039 switch (kind) {
1040 case KIND_ALLOCATED_OBJECTS:
1041 return stats->allocated_objects;
1042 case KIND_ALLOCATED_BYTES:
1043 return stats->allocated_bytes;
1044 case KIND_FREED_OBJECTS:
1045 return stats->freed_objects;
1046 case KIND_FREED_BYTES:
1047 return stats->freed_bytes;
1048 case KIND_GC_INVOCATIONS:
1049 return stats->gc_for_alloc_count;
1050 case KIND_CLASS_INIT_COUNT:
1051 return stats->class_init_count;
1052 case KIND_CLASS_INIT_TIME:
1053 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -07001054 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001055 case KIND_EXT_ALLOCATED_OBJECTS:
1056 case KIND_EXT_ALLOCATED_BYTES:
1057 case KIND_EXT_FREED_OBJECTS:
1058 case KIND_EXT_FREED_BYTES:
1059 return 0; // backward compatibility
1060 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -07001061 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -07001062 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001063 }
1064}
1065
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001066void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -07001067 SignalSet signals;
1068 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001069 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -07001070 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -07001071 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -07001072 signals.Add(SIGUSR1);
1073 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001074}
1075
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001076bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
1077 bool create_peer) {
1078 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -07001079 if (thread_name == NULL) {
1080 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1081 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001082 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001083}
1084
Elliott Hughesd92bec42011-09-02 17:04:36 -07001085void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001086 Thread* self = Thread::Current();
1087 if (self == NULL) {
1088 LOG(FATAL) << "attempting to detach thread that is not attached";
1089 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001090 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001091 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1092 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001093 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001094}
1095
Ian Rogers1d54e732013-05-02 21:10:01 -07001096void Runtime::VisitConcurrentRoots(RootVisitor* visitor, void* arg, bool only_dirty,
1097 bool clean_dirty) {
1098 if (!only_dirty || intern_table_->IsDirty()) {
1099 intern_table_->VisitRoots(visitor, arg, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001100 }
Ian Rogers1d54e732013-05-02 21:10:01 -07001101 if (!only_dirty || class_linker_->IsDirty()) {
1102 class_linker_->VisitRoots(visitor, arg, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001103 }
1104}
1105
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001106void Runtime::VisitNonThreadRoots(RootVisitor* visitor, void* arg) {
Brian Carlstrome24fa612011-09-29 00:53:55 -07001107 java_vm_->VisitRoots(visitor, arg);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001108 if (pre_allocated_OutOfMemoryError_ != NULL) {
1109 visitor(pre_allocated_OutOfMemoryError_, arg);
1110 }
Ian Rogers19846512012-02-24 11:42:47 -08001111 visitor(resolution_method_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001112 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -07001113 visitor(callee_save_methods_[i], arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001114 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001115}
1116
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001117void Runtime::VisitNonConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001118 thread_list_->VisitRoots(visitor, arg);
1119 VisitNonThreadRoots(visitor, arg);
1120}
1121
Ian Rogers1d54e732013-05-02 21:10:01 -07001122void Runtime::VisitRoots(RootVisitor* visitor, void* arg, bool only_dirty, bool clean_dirty) {
1123 VisitConcurrentRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001124 VisitNonConcurrentRoots(visitor, arg);
1125}
1126
Brian Carlstromea46f952013-07-30 01:26:50 -07001127mirror::ArtMethod* Runtime::CreateResolutionMethod() {
1128 mirror::Class* method_class = mirror::ArtMethod::GetJavaLangReflectArtMethod();
Ian Rogers50b35e22012-10-04 10:09:15 -07001129 Thread* self = Thread::Current();
Brian Carlstromea46f952013-07-30 01:26:50 -07001130 SirtRef<mirror::ArtMethod>
1131 method(self, down_cast<mirror::ArtMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001132 method->SetDeclaringClass(method_class);
1133 // TODO: use a special method for resolution method saves
1134 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Jeff Hao58df3272013-04-22 15:28:53 -07001135 // When compiling, the code pointer will get set later when the image is loaded.
Jeff Hao0aba0ba2013-06-03 14:49:28 -07001136 Runtime* r = Runtime::Current();
1137 ClassLinker* cl = r->GetClassLinker();
1138 method->SetEntryPointFromCompiledCode(r->IsCompiler() ? NULL : GetResolutionTrampoline(cl));
Ian Rogers19846512012-02-24 11:42:47 -08001139 return method.get();
1140}
1141
Brian Carlstromea46f952013-07-30 01:26:50 -07001142mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001143 CalleeSaveType type) {
Brian Carlstromea46f952013-07-30 01:26:50 -07001144 mirror::Class* method_class = mirror::ArtMethod::GetJavaLangReflectArtMethod();
Ian Rogers50b35e22012-10-04 10:09:15 -07001145 Thread* self = Thread::Current();
Brian Carlstromea46f952013-07-30 01:26:50 -07001146 SirtRef<mirror::ArtMethod>
1147 method(self, down_cast<mirror::ArtMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001148 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001149 // TODO: use a special method for callee saves
Ian Rogers19846512012-02-24 11:42:47 -08001150 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Jeff Haoaa4a7932013-05-13 11:28:27 -07001151 method->SetEntryPointFromCompiledCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001152 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001153 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1154 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1155 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1156 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001157 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1158 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001159 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1160 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1161 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1162 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1163 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1164 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1165 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1166 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1167 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1168 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1169 (1 << art::arm::S30) | (1 << art::arm::S31);
1170 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1171 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1172 __builtin_popcount(fp_spills) /* fprs */ +
1173 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001174 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001175 method->SetCoreSpillMask(core_spills);
1176 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001177 } else if (instruction_set == kMips) {
1178 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1179 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001180 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -07001181 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001182 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001183 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001184 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001185 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001186 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
1187 kPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001188 method->SetFrameSizeInBytes(frame_size);
1189 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001190 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001191 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001192 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1193 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1194 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1195 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1196 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1197 1 /* Method* */) * kPointerSize, kStackAlignment);
1198 method->SetFrameSizeInBytes(frame_size);
1199 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001200 method->SetFpSpillMask(0);
1201 } else {
1202 UNIMPLEMENTED(FATAL);
1203 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001204 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001205}
1206
Brian Carlstromea46f952013-07-30 01:26:50 -07001207void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001208 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001209 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001210}
1211
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001212const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001213 if (class_loader == NULL) {
1214 return GetClassLinker()->GetBootClassPath();
1215 }
1216 CHECK(UseCompileTimeClassPath());
1217 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1218 CHECK(it != compile_time_class_paths_.end());
1219 return it->second;
1220}
1221
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001222void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001223 CHECK(!IsStarted());
1224 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001225 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001226}
1227
Carl Shapiro1fb86202011-06-27 17:43:13 -07001228} // namespace art