blob: 25d26b8005298999bfa3ff4c1b8a419e7112edde [file] [log] [blame]
Elliott Hughes2faa5f12012-01-30 14:42:07 -08001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
Carl Shapiro1fb86202011-06-27 17:43:13 -070016
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070017#include "runtime.h"
Carl Shapiro1fb86202011-06-27 17:43:13 -070018
Brian Carlstrombd86bcc2013-03-10 20:26:16 -070019// sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc
20#include <sys/mount.h>
21#include <linux/fs.h>
22
Brian Carlstromdbf05b72011-12-15 00:55:24 -080023#include <signal.h>
Elliott Hughesd06a6c72012-05-30 17:59:06 -070024#include <sys/syscall.h>
Brian Carlstromdbf05b72011-12-15 00:55:24 -080025
Elliott Hughesffe67362011-07-17 12:09:27 -070026#include <cstdio>
27#include <cstdlib>
Brian Carlstrom8a436592011-08-15 21:27:23 -070028#include <limits>
Carl Shapiro2ed144c2011-07-26 16:52:08 -070029#include <vector>
Elliott Hughesffe67362011-07-17 12:09:27 -070030
Ian 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 Hughesd06a6c72012-05-30 17:59:06 -0700213#if defined(__BIONIC__)
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700214 // TODO: finish merging patches to fix abort(3) in bionic, then lose this!
215 // Bionic doesn't implement POSIX semantics for abort(3) in a multi-threaded
216 // process, so if we call abort(3) on a device, all threads in the process
Carl Shapiro69759ea2011-07-21 18:13:35 -0700217 // receive SIGABRT. debuggerd dumps the stack trace of the main
218 // thread, whether or not that was the thread that failed. By
219 // stuffing a value into a bogus address, we cause a segmentation
Elliott Hughesffe67362011-07-17 12:09:27 -0700220 // fault in the current thread, and get a useful log from debuggerd.
Elliott Hughes81ff3182012-03-23 20:35:56 -0700221 // We can also trivially tell the difference between a crash and
Elliott Hughesffe67362011-07-17 12:09:27 -0700222 // a deliberate abort by looking at the fault address.
223 *reinterpret_cast<char*>(0xdeadd00d) = 38;
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700224#elif defined(__APPLE__)
225 // TODO: check that this actually gives good stack traces on the Mac!
226 pthread_kill(pthread_self(), SIGABRT);
227#else
228 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
229 // which POSIX defines in terms of raise(3), which POSIX defines in terms
230 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
231 // libpthread, which means the stacks we dump would be useless. Calling
232 // tgkill(2) directly avoids that.
233 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Brian Carlstrom700c8d32012-11-05 10:42:02 -0800234 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that?
235 exit(1);
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700236#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700237 // notreached
238}
239
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700240bool Runtime::PreZygoteFork() {
241 heap_->PreZygoteFork();
242 return true;
243}
244
Elliott Hughesbf86d042011-08-31 17:53:14 -0700245void Runtime::CallExitHook(jint status) {
246 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700247 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700248 exit_(status);
249 LOG(WARNING) << "Exit hook returned instead of exiting!";
250 }
251}
252
Brian Carlstrom8a436592011-08-15 21:27:23 -0700253// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
254// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
255// [gG] gigabytes.
256//
257// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700258// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
259// of 1024.
260//
261// The spec says the -Xmx and -Xms options must be multiples of 1024. It
262// doesn't say anything about -Xss.
263//
264// Returns 0 (a useless size) if "s" is malformed or specifies a low or
265// non-evenly-divisible value.
266//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800267size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700268 // strtoul accepts a leading [+-], which we don't want,
269 // so make sure our string starts with a decimal digit.
270 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700271 char* s2;
272 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700273 if (s2 != s) {
274 // s2 should be pointing just after the number.
275 // If this is the end of the string, the user
276 // has specified a number of bytes. Otherwise,
277 // there should be exactly one more character
278 // that specifies a multiplier.
279 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700280 // The remainder of the string is either a single multiplier
281 // character, or nothing to indicate that the value is in
282 // bytes.
283 char c = *s2++;
284 if (*s2 == '\0') {
285 size_t mul;
286 if (c == '\0') {
287 mul = 1;
288 } else if (c == 'k' || c == 'K') {
289 mul = KB;
290 } else if (c == 'm' || c == 'M') {
291 mul = MB;
292 } else if (c == 'g' || c == 'G') {
293 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700294 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700295 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700296 return 0;
297 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700298
299 if (val <= std::numeric_limits<size_t>::max() / mul) {
300 val *= mul;
301 } else {
302 // Clamp to a multiple of 1024.
303 val = std::numeric_limits<size_t>::max() & ~(1024-1);
304 }
305 } else {
306 // There's more than one character after the numeric part.
307 return 0;
308 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700309 }
310 // The man page says that a -Xm value must be a multiple of 1024.
311 if (val % div == 0) {
312 return val;
313 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700314 }
315 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700316 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700317}
318
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800319size_t ParseIntegerOrDie(const std::string& s) {
320 std::string::size_type colon = s.find(':');
321 if (colon == std::string::npos) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700322 LOG(FATAL) << "Missing integer: " << s;
323 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800324 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700325 char* end;
326 size_t result = strtoul(begin, &end, 10);
327 if (begin == end || *end != '\0') {
328 LOG(FATAL) << "Failed to parse integer in: " << s;
329 }
330 return result;
331}
332
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700333Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700334 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800335 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
336 if (boot_class_path_string != NULL) {
337 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700338 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800339 const char* class_path_string = getenv("CLASSPATH");
340 if (class_path_string != NULL) {
341 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700342 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700343 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
344 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700345
Mathieu Chartier0051be62012-10-12 17:47:11 -0700346 parsed->heap_initial_size_ = Heap::kDefaultInitialSize;
347 parsed->heap_maximum_size_ = Heap::kDefaultMaximumSize;
348 parsed->heap_min_free_ = Heap::kDefaultMinFree;
349 parsed->heap_max_free_ = Heap::kDefaultMaxFree;
350 parsed->heap_target_utilization_ = Heap::kDefaultTargetUtilization;
Elliott Hughes6cf23882012-06-15 15:42:07 -0700351 parsed->heap_growth_limit_ = 0; // 0 means no growth limit.
352 parsed->stack_size_ = 0; // 0 means default.
Brian Carlstromf734cf52011-08-17 16:28:14 -0700353
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800354 parsed->is_compiler_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700355 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800356 parsed->interpreter_only_ = false;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700357 parsed->is_concurrent_gc_enabled_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700358
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700359 parsed->jni_globals_max_ = 0;
Elliott Hughesfc861622011-10-17 17:57:47 -0700360 parsed->lock_profiling_threshold_ = 0;
361 parsed->hook_is_sensitive_thread_ = NULL;
362
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700363 parsed->hook_vfprintf_ = vfprintf;
364 parsed->hook_exit_ = exit;
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700365 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700366
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800367// gLogVerbosity.class_linker = true; // TODO: don't check this in!
368// gLogVerbosity.compiler = true; // TODO: don't check this in!
369// gLogVerbosity.heap = true; // TODO: don't check this in!
370// gLogVerbosity.gc = true; // TODO: don't check this in!
371// gLogVerbosity.jdwp = true; // TODO: don't check this in!
372// gLogVerbosity.jni = true; // TODO: don't check this in!
373// gLogVerbosity.monitor = true; // TODO: don't check this in!
374// gLogVerbosity.startup = true; // TODO: don't check this in!
375// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
376// gLogVerbosity.threads = true; // TODO: don't check this in!
377
jeffhaob5e81852012-03-12 11:15:45 -0700378 parsed->method_trace_ = false;
379 parsed->method_trace_file_ = "/data/method-trace-file.bin";
380 parsed->method_trace_file_size_ = 10 * MB;
381
Brian Carlstrom8a436592011-08-15 21:27:23 -0700382 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800383 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700384 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700385 LOG(INFO) << "option[" << i << "]=" << option;
386 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800387 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800388 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700389 } else if (option == "-classpath" || option == "-cp") {
390 // TODO: support -Djava.class.path
391 i++;
392 if (i == options.size()) {
393 // TODO: usage
394 LOG(FATAL) << "Missing required class path value for " << option;
395 return NULL;
396 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800397 const StringPiece& value = options[i].first;
398 parsed->class_path_string_ = value.data();
399 } else if (option == "bootclasspath") {
400 parsed->boot_class_path_
401 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800402 } else if (StartsWith(option, "-Ximage:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800403 parsed->image_ = option.substr(strlen("-Ximage:")).data();
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800404 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700405 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800406 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
407 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700408 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
409 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
410 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
411 return NULL;
412 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800413 } else if (StartsWith(option, "-Xms")) {
414 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700415 if (size == 0) {
416 if (ignore_unrecognized) {
417 continue;
418 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700419 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700420 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700421 return NULL;
422 }
423 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800424 } else if (StartsWith(option, "-Xmx")) {
425 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700426 if (size == 0) {
427 if (ignore_unrecognized) {
428 continue;
429 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700430 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700431 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700432 return NULL;
433 }
434 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800435 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
436 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700437 if (size == 0) {
438 if (ignore_unrecognized) {
439 continue;
440 }
441 // TODO: usage
442 LOG(FATAL) << "Failed to parse " << option;
443 return NULL;
444 }
445 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700446 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
447 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
448 if (size == 0) {
449 if (ignore_unrecognized) {
450 continue;
451 }
452 // TODO: usage
453 LOG(FATAL) << "Failed to parse " << option;
454 return NULL;
455 }
456 parsed->heap_min_free_ = size;
457 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
458 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
459 if (size == 0) {
460 if (ignore_unrecognized) {
461 continue;
462 }
463 // TODO: usage
464 LOG(FATAL) << "Failed to parse " << option;
465 return NULL;
466 }
467 parsed->heap_max_free_ = size;
468 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
469 std::istringstream iss(option.substr(strlen("-XX:HeapTargetUtilization=")));
470 double value;
471 iss >> value;
472 // 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 -0700473 const bool sane_val = iss.eof() && (value >= 0.1) && (value <= 0.9);
Mathieu Chartier0051be62012-10-12 17:47:11 -0700474 if (!sane_val) {
475 if (ignore_unrecognized) {
476 continue;
477 }
478 LOG(FATAL) << "Invalid option '" << option << "'";
479 return NULL;
480 }
481 parsed->heap_target_utilization_ = value;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800482 } else if (StartsWith(option, "-Xss")) {
483 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700484 if (size == 0) {
485 if (ignore_unrecognized) {
486 continue;
487 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700488 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700489 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700490 return NULL;
491 }
492 parsed->stack_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800493 } else if (StartsWith(option, "-D")) {
494 parsed->properties_.push_back(option.substr(strlen("-D")));
495 } else if (StartsWith(option, "-Xjnitrace:")) {
496 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700497 } else if (option == "compiler") {
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800498 parsed->is_compiler_ = true;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700499 } else if (option == "-Xzygote") {
500 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800501 } else if (option == "-Xint") {
502 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700503 } else if (StartsWith(option, "-Xgc:")) {
504 std::vector<std::string> gc_options;
505 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
506 for (size_t i = 0; i < gc_options.size(); ++i) {
507 if (gc_options[i] == "noconcurrent") {
508 parsed->is_concurrent_gc_enabled_ = false;
509 } else if (gc_options[i] == "concurrent") {
510 parsed->is_concurrent_gc_enabled_ = true;
511 } else {
512 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_options[i];
513 }
514 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800515 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700516 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800517 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700518 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800519 if (verbose_options[i] == "class") {
520 gLogVerbosity.class_linker = true;
521 } else if (verbose_options[i] == "compiler") {
522 gLogVerbosity.compiler = true;
523 } else if (verbose_options[i] == "heap") {
524 gLogVerbosity.heap = true;
525 } else if (verbose_options[i] == "gc") {
526 gLogVerbosity.gc = true;
527 } else if (verbose_options[i] == "jdwp") {
528 gLogVerbosity.jdwp = true;
529 } else if (verbose_options[i] == "jni") {
530 gLogVerbosity.jni = true;
531 } else if (verbose_options[i] == "monitor") {
532 gLogVerbosity.monitor = true;
533 } else if (verbose_options[i] == "startup") {
534 gLogVerbosity.startup = true;
535 } else if (verbose_options[i] == "third-party-jni") {
536 gLogVerbosity.third_party_jni = true;
537 } else if (verbose_options[i] == "threads") {
538 gLogVerbosity.threads = true;
539 } else {
540 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
541 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700542 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800543 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700544 parsed->jni_globals_max_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800545 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700546 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800547 } else if (StartsWith(option, "-Xstacktracefile:")) {
Elliott Hughes206c20d2012-06-28 11:05:37 -0700548 parsed->stack_trace_file_ = option.substr(strlen("-Xstacktracefile:"));
Elliott Hughesfc861622011-10-17 17:57:47 -0700549 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700550 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700551 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700552 parsed->hook_vfprintf_ =
553 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700554 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700555 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700556 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700557 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700558 } else if (option == "host-prefix") {
559 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800560 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
561 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700562 } else if (option == "-Xmethod-trace") {
563 parsed->method_trace_ = true;
564 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
565 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
566 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
567 parsed->method_trace_file_size_ = ParseIntegerOrDie(option);
Elliott Hughese119a362012-05-22 17:37:06 -0700568 } else if (option == "-Xprofile:threadcpuclock") {
569 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
570 } else if (option == "-Xprofile:wallclock") {
571 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
572 } else if (option == "-Xprofile:dualclock") {
573 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700574 } else {
575 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700576 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700577 LOG(ERROR) << "Unrecognized option " << option;
578 // TODO: this should exit, but for now tolerate unknown options
579 //return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700580 }
581 }
582 }
583
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800584 if (!parsed->is_compiler_ && parsed->image_.empty()) {
585 parsed->image_ += GetAndroidRoot();
586 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700587 }
jeffhaoc1160702011-10-27 15:48:45 -0700588 if (parsed->heap_growth_limit_ == 0) {
589 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
590 }
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700591
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700592 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700593}
594
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700595bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700596 // TODO: acquire a static mutex on Runtime to avoid racing.
597 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700598 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700599 }
Ian Rogersb726dcb2012-09-05 08:57:23 -0700600 Locks::Init();
Elliott Hughesdcc24742011-09-07 14:02:44 -0700601 instance_ = new Runtime;
602 if (!instance_->Init(options, ignore_unrecognized)) {
603 delete instance_;
604 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700605 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700606 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700607 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700608}
Elliott Hughes0af55432011-08-17 18:37:28 -0700609
Ian Rogers365c1022012-06-22 15:05:28 -0700610static void CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800611 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromaded5f72011-10-07 17:15:04 -0700612 return;
613 }
614
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700615 ScopedObjectAccess soa(Thread::Current());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700616
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800617 mirror::Class* class_loader_class =
618 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader);
Ian Rogers365c1022012-06-22 15:05:28 -0700619 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700620
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800621 mirror::AbstractMethod* getSystemClassLoader =
622 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700623 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700624
Jeff Hao5d917302013-02-27 17:57:33 -0800625 JValue result;
Jeff Hao5d917302013-02-27 17:57:33 -0800626 ArgArray arg_array(NULL, 0);
Jeff Hao6474d192013-03-26 14:08:09 -0700627 InvokeWithArgArray(soa, getSystemClassLoader, &arg_array, &result, 'L');
Jeff Hao5d917302013-02-27 17:57:33 -0800628 mirror::ClassLoader* class_loader = down_cast<mirror::ClassLoader*>(result.GetL());
Ian Rogers365c1022012-06-22 15:05:28 -0700629 CHECK(class_loader != NULL);
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500630
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700631 soa.Self()->SetClassLoaderOverride(class_loader);
Ian Rogers365c1022012-06-22 15:05:28 -0700632
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800633 mirror::Class* thread_class = soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread);
Ian Rogers365c1022012-06-22 15:05:28 -0700634 CHECK(Runtime::Current()->GetClassLinker()->EnsureInitialized(thread_class, true, true));
635
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800636 mirror::Field* contextClassLoader = thread_class->FindDeclaredInstanceField("contextClassLoader",
637 "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500638 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700639
Ian Rogerscfaa4552012-11-26 21:00:08 -0800640 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700641}
642
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700643bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800644 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700645
646 CHECK(host_prefix_.empty()) << host_prefix_;
647
Elliott Hughes225f5a12012-06-11 11:23:48 -0700648 // Pre-allocate an OutOfMemoryError for the double-OOME case.
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700649 Thread* self = Thread::Current();
Ian Rogers62d6c772013-02-27 08:32:07 -0800650 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
Elliott Hughes225f5a12012-06-11 11:23:48 -0700651 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
Ian Rogers62d6c772013-02-27 08:32:07 -0800652 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
Elliott Hughes225f5a12012-06-11 11:23:48 -0700653 self->ClearException();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700654
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700655 // Restore main thread state to kNative as expected by native code.
656 self->TransitionFromRunnableToSuspended(kNative);
657
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700658 started_ = true;
659
Brian Carlstromae826982011-11-09 01:33:42 -0800660 // InitNativeMethods needs to be after started_ so that the classes
661 // it touches will have methods linked to the oat file if necessary.
662 InitNativeMethods();
663
Ian Rogers365c1022012-06-22 15:05:28 -0700664 // Initialize well known thread group values that may be accessed threads while attaching.
665 InitThreadGroups(self);
666
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500667 Thread::FinishStartup();
668
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700669 if (is_zygote_) {
670 if (!InitZygote()) {
671 return false;
672 }
673 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700674 DidForkFromZygote();
675 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700676
Elliott Hughes85d15452011-09-16 17:33:01 -0700677 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700678
Brian Carlstromaded5f72011-10-07 17:15:04 -0700679 CreateSystemClassLoader();
680
Elliott Hughes225f5a12012-06-11 11:23:48 -0700681 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700682
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800683 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700684
685 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700686
687 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700688}
689
Ian Rogers120f1c72012-09-28 17:17:10 -0700690void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
691 DCHECK_GT(threads_being_born_, 0U);
692 threads_being_born_--;
693 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700694 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700695 }
696}
697
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700698// Do zygote-mode-only initialization.
699bool Runtime::InitZygote() {
700 // zygote goes into its own process group
701 setpgid(0,0);
702
703 // See storage config details at http://source.android.com/tech/storage/
704 // Create private mount namespace shared by all children
705 if (unshare(CLONE_NEWNS) == -1) {
706 PLOG(WARNING) << "Failed to unshare()";
707 return false;
708 }
709
710 // Mark rootfs as being a slave so that changes from default
711 // namespace only flow into our children.
712 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
713 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
714 return false;
715 }
716
717 // Create a staging tmpfs that is shared by our children; they will
718 // bind mount storage into their respective private namespaces, which
719 // are isolated from each other.
720 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
721 if (target_base != NULL) {
722 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
723 "uid=0,gid=1028,mode=0050") == -1) {
724 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
725 return false;
726 }
727 }
728
729 return true;
730}
731
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700732void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700733 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700734
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700735 // Create the thread pool.
736 heap_->CreateThreadPool();
737
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700738 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700739
740 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
741 // this will pause the runtime, so we probably want this to come last.
742 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700743}
744
745void Runtime::StartSignalCatcher() {
746 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700747 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700748 }
749}
750
Elliott Hughes85d15452011-09-16 17:33:01 -0700751void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800752 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700753
Elliott Hughes719b3232011-09-25 17:42:19 -0700754 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700755
756 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700757 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700758
Elliott Hughes719b3232011-09-25 17:42:19 -0700759 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700760 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
761 WellKnownClasses::java_lang_Daemons_start);
762 if (env->ExceptionCheck()) {
763 env->ExceptionDescribe();
764 LOG(FATAL) << "Error starting java.lang.Daemons";
765 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700766
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800767 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700768}
769
Elliott Hughes0af55432011-08-17 18:37:28 -0700770bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700771 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700772
Elliott Hughes90a33692011-08-30 13:27:07 -0700773 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
774 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700775 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700776 return false;
777 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800778 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700779
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700780 QuasiAtomic::Startup();
781
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700782 SetJniGlobalsMax(options->jni_globals_max_);
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800783 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700784
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700785 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800786 boot_class_path_string_ = options->boot_class_path_string_;
787 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700788 properties_ = options->properties_;
789
Elliott Hughesd9c67be2012-02-02 19:54:06 -0800790 is_compiler_ = options->is_compiler_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700791 is_zygote_ = options->is_zygote_;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700792 is_concurrent_gc_enabled_ = options->is_concurrent_gc_enabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700793
Elliott Hughes0af55432011-08-17 18:37:28 -0700794 vfprintf_ = options->hook_vfprintf_;
795 exit_ = options->hook_exit_;
796 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700797
Elliott Hughesbe759c62011-09-08 19:38:21 -0700798 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700799 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700800
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700801 monitor_list_ = new MonitorList;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800802 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700803 intern_table_ = new InternTable;
804
Logan Chiendd361c92012-04-10 23:40:37 +0800805
Ian Rogers62d6c772013-02-27 08:32:07 -0800806 if (options->interpreter_only_) {
807 GetInstrumentation()->ForceInterpretOnly();
808 }
809
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800810 heap_ = new Heap(options->heap_initial_size_,
811 options->heap_growth_limit_,
Mathieu Chartier0051be62012-10-12 17:47:11 -0700812 options->heap_min_free_,
813 options->heap_max_free_,
814 options->heap_target_utilization_,
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800815 options->heap_maximum_size_,
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700816 options->image_,
817 options->is_concurrent_gc_enabled_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700818
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700819 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -0700820 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700821
Elliott Hughesa0957642011-09-02 14:27:33 -0700822 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700823
Elliott Hughesbe759c62011-09-08 19:38:21 -0700824 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -0700825
Mathieu Chartier664bebf2012-11-12 16:54:11 -0800826 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
827 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
828 // thread, we do not get a java peer.
829 Thread* self = Thread::Attach("main", false, NULL, false);
830 CHECK_EQ(self->thin_lock_id_, ThreadList::kMainId);
Ian Rogers120f1c72012-09-28 17:17:10 -0700831 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700832
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700833 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -0700834 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -0700835
Ian Rogers141d6222012-04-05 12:23:06 -0700836 // Now we're attached, we can take the heap lock and validate the heap.
837 GetHeap()->EnableObjectValidation();
838
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800839 CHECK_GE(GetHeap()->GetSpaces().size(), 1U);
840 if (GetHeap()->GetSpaces()[0]->IsImageSpace()) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800841 class_linker_ = ClassLinker::CreateFromImage(intern_table_);
842 } else {
843 CHECK(options->boot_class_path_ != NULL);
844 CHECK_NE(options->boot_class_path_->size(), 0U);
845 class_linker_ = ClassLinker::CreateFromCompiler(*options->boot_class_path_, intern_table_);
846 }
847 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -0800848 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700849
jeffhaob5e81852012-03-12 11:15:45 -0700850 method_trace_ = options->method_trace_;
851 method_trace_file_ = options->method_trace_file_;
852 method_trace_file_size_ = options->method_trace_file_size_;
853
854 if (options->method_trace_) {
855 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, false);
856 }
857
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800858 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -0700859 return true;
860}
861
Elliott Hughes038a8062011-09-18 14:12:41 -0700862void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800863 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700864 Thread* self = Thread::Current();
865 JNIEnv* env = self->GetJniEnv();
866
Elliott Hughes418d20f2011-09-22 14:00:39 -0700867 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -0700868 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700869
Elliott Hughes418d20f2011-09-22 14:00:39 -0700870 // First set up JniConstants, which is used by both the runtime's built-in native
871 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -0700872 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -0700873 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -0700874
Elliott Hughes418d20f2011-09-22 14:00:39 -0700875 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700876 RegisterRuntimeNativeMethods(env);
877
Elliott Hughes418d20f2011-09-22 14:00:39 -0700878 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
879 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
880 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700881 {
882 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
883 std::string reason;
884 self->TransitionFromSuspendedToRunnable();
885 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, NULL, reason)) {
886 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
887 }
888 self->TransitionFromRunnableToSuspended(kNative);
889 }
Ian Rogersef28b142012-11-30 14:22:18 -0800890
891 // Initialize well known classes that may invoke runtime native methods.
892 WellKnownClasses::LateInit(env);
893
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800894 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700895}
896
Ian Rogers365c1022012-06-22 15:05:28 -0700897void Runtime::InitThreadGroups(Thread* self) {
898 JNIEnvExt* env = self->GetJniEnv();
899 ScopedJniEnvLocalRefState env_state(env);
900 main_thread_group_ =
901 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
902 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700903 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -0700904 system_thread_group_ =
905 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
906 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -0700907 CHECK(system_thread_group_ != NULL || IsCompiler());
908}
909
910jobject Runtime::GetMainThreadGroup() const {
911 CHECK(main_thread_group_ != NULL || IsCompiler());
912 return main_thread_group_;
913}
914
915jobject Runtime::GetSystemThreadGroup() const {
916 CHECK(system_thread_group_ != NULL || IsCompiler());
917 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -0700918}
919
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700920void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
921#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -0800922 // Register Throwable first so that registration of other native methods can throw exceptions
923 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -0700924 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700925 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700926 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700927 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -0700928 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -0700929 REGISTER(register_java_lang_Class);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700930 REGISTER(register_java_lang_Object);
931 REGISTER(register_java_lang_Runtime);
932 REGISTER(register_java_lang_String);
933 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -0700934 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -0700935 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -0700936 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -0700937 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -0700938 REGISTER(register_java_lang_reflect_Field);
939 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -0400940 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700941 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -0700942 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -0700943 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -0700944 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -0700945#undef REGISTER
946}
947
Elliott Hughesc967f782012-04-16 10:23:15 -0700948void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700949 GetClassLinker()->DumpForSigQuit(os);
950 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -0700951 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -0700952 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -0700953 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -0700954
Elliott Hughesc967f782012-04-16 10:23:15 -0700955 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -0800956 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -0700957}
958
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800959void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -0700960 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800961 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
962 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
963 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700964 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
965 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -0800966 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
967 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
968 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
969 }
970}
971
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700972void Runtime::SetStatsEnabled(bool new_state) {
973 if (new_state == true) {
974 GetStats()->Clear(~0);
975 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
976 Thread::Current()->GetStats()->Clear(~0);
977 }
978 stats_enabled_ = new_state;
979}
980
981void Runtime::ResetStats(int kinds) {
982 GetStats()->Clear(kinds & 0xffff);
983 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
984 Thread::Current()->GetStats()->Clear(kinds >> 16);
985}
986
Elliott Hughes9d5ccec2011-09-19 13:19:50 -0700987int32_t Runtime::GetStat(int kind) {
988 RuntimeStats* stats;
989 if (kind < (1<<16)) {
990 stats = GetStats();
991 } else {
992 stats = Thread::Current()->GetStats();
993 kind >>= 16;
994 }
995 switch (kind) {
996 case KIND_ALLOCATED_OBJECTS:
997 return stats->allocated_objects;
998 case KIND_ALLOCATED_BYTES:
999 return stats->allocated_bytes;
1000 case KIND_FREED_OBJECTS:
1001 return stats->freed_objects;
1002 case KIND_FREED_BYTES:
1003 return stats->freed_bytes;
1004 case KIND_GC_INVOCATIONS:
1005 return stats->gc_for_alloc_count;
1006 case KIND_CLASS_INIT_COUNT:
1007 return stats->class_init_count;
1008 case KIND_CLASS_INIT_TIME:
1009 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -07001010 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001011 case KIND_EXT_ALLOCATED_OBJECTS:
1012 case KIND_EXT_ALLOCATED_BYTES:
1013 case KIND_EXT_FREED_OBJECTS:
1014 case KIND_EXT_FREED_BYTES:
1015 return 0; // backward compatibility
1016 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -07001017 LOG(FATAL) << "Unknown statistic " << kind;
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001018 return -1; // unreachable
1019 }
1020}
1021
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001022void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -07001023 SignalSet signals;
1024 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001025 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -07001026 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -07001027 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -07001028 signals.Add(SIGUSR1);
1029 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001030}
1031
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001032bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
1033 bool create_peer) {
1034 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -07001035 if (thread_name == NULL) {
1036 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1037 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001038 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001039}
1040
Elliott Hughesd92bec42011-09-02 17:04:36 -07001041void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001042 Thread* self = Thread::Current();
1043 if (self == NULL) {
1044 LOG(FATAL) << "attempting to detach thread that is not attached";
1045 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001046 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001047 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1048 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001049 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001050}
1051
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001052void Runtime::VisitConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001053 if (intern_table_->IsDirty()) {
1054 intern_table_->VisitRoots(visitor, arg);
1055 }
1056 if (class_linker_->IsDirty()) {
1057 class_linker_->VisitRoots(visitor, arg);
1058 }
1059}
1060
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001061void Runtime::VisitNonThreadRoots(RootVisitor* visitor, void* arg) {
Brian Carlstrome24fa612011-09-29 00:53:55 -07001062 java_vm_->VisitRoots(visitor, arg);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001063 if (pre_allocated_OutOfMemoryError_ != NULL) {
1064 visitor(pre_allocated_OutOfMemoryError_, arg);
1065 }
Ian Rogers19846512012-02-24 11:42:47 -08001066 visitor(resolution_method_, arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001067 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Elliott Hughes225f5a12012-06-11 11:23:48 -07001068 visitor(callee_save_methods_[i], arg);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001069 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001070}
1071
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001072void Runtime::VisitNonConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001073 thread_list_->VisitRoots(visitor, arg);
1074 VisitNonThreadRoots(visitor, arg);
1075}
1076
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001077void Runtime::DirtyRoots() {
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001078 CHECK(intern_table_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001079 intern_table_->Dirty();
Mathieu Chartier02b6a782012-10-26 13:51:26 -07001080 CHECK(class_linker_ != NULL);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001081 class_linker_->Dirty();
1082}
1083
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001084void Runtime::VisitRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001085 VisitConcurrentRoots(visitor, arg);
1086 VisitNonConcurrentRoots(visitor, arg);
1087}
1088
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001089mirror::AbstractMethod* Runtime::CreateResolutionMethod() {
1090 mirror::Class* method_class = mirror::AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001091 Thread* self = Thread::Current();
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001092 SirtRef<mirror::AbstractMethod>
1093 method(self, down_cast<mirror::AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogers19846512012-02-24 11:42:47 -08001094 method->SetDeclaringClass(method_class);
1095 // TODO: use a special method for resolution method saves
1096 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Jeff Hao58df3272013-04-22 15:28:53 -07001097 // When compiling, the code pointer will get set later when the image is loaded.
1098 method->SetCode(Runtime::Current()->IsCompiler() ? NULL : GetResolutionTrampoline());
Ian Rogers19846512012-02-24 11:42:47 -08001099 return method.get();
1100}
1101
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001102mirror::AbstractMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
1103 CalleeSaveType type) {
1104 mirror::Class* method_class = mirror::AbstractMethod::GetMethodClass();
Ian Rogers50b35e22012-10-04 10:09:15 -07001105 Thread* self = Thread::Current();
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001106 SirtRef<mirror::AbstractMethod>
1107 method(self, down_cast<mirror::AbstractMethod*>(method_class->AllocObject(self)));
Ian Rogersff1ed472011-09-20 13:46:24 -07001108 method->SetDeclaringClass(method_class);
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001109 // TODO: use a special method for callee saves
Ian Rogers19846512012-02-24 11:42:47 -08001110 method->SetDexMethodIndex(DexFile::kDexNoIndex16);
Brian Carlstrom3320cf42011-10-04 14:58:28 -07001111 method->SetCode(NULL);
Brian Carlstromae826982011-11-09 01:33:42 -08001112 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001113 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1114 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1115 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1116 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001117 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1118 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001119 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1120 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1121 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1122 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1123 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1124 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1125 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1126 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1127 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1128 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1129 (1 << art::arm::S30) | (1 << art::arm::S31);
1130 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1131 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1132 __builtin_popcount(fp_spills) /* fprs */ +
1133 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001134 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001135 method->SetCoreSpillMask(core_spills);
1136 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001137 } else if (instruction_set == kMips) {
1138 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1139 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
1140 (1 << art::mips::FP);
1141 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001142 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001143 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001144 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001145 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
jeffhao4eb68ed2012-10-17 16:41:07 -07001146 (type == kRefsAndArgs ? 0 : 5) /* reserve arg space */ +
jeffhao7fbee072012-08-24 17:56:54 -07001147 1 /* Method* */) * kPointerSize, kStackAlignment);
1148 method->SetFrameSizeInBytes(frame_size);
1149 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001150 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001151 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001152 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1153 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1154 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1155 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1156 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1157 1 /* Method* */) * kPointerSize, kStackAlignment);
1158 method->SetFrameSizeInBytes(frame_size);
1159 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001160 method->SetFpSpillMask(0);
1161 } else {
1162 UNIMPLEMENTED(FATAL);
1163 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001164 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001165}
1166
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001167void Runtime::SetCalleeSaveMethod(mirror::AbstractMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001168 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001169 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001170}
1171
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001172const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001173 if (class_loader == NULL) {
1174 return GetClassLinker()->GetBootClassPath();
1175 }
1176 CHECK(UseCompileTimeClassPath());
1177 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1178 CHECK(it != compile_time_class_paths_.end());
1179 return it->second;
1180}
1181
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001182void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001183 CHECK(!IsStarted());
1184 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001185 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001186}
1187
Carl Shapiro1fb86202011-06-27 17:43:13 -07001188} // namespace art