blob: 4e9047872873a796a5b6d725af3e53dada5f886b [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 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 Rogersef7d42f2014-01-06 12:55:46 -080034#include "arch/x86_64/registers_x86_64.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080035#include "atomic.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070036#include "class_linker.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070037#include "debugger.h"
Ian Rogers1d54e732013-05-02 21:10:01 -070038#include "gc/accounting/card_table-inl.h"
39#include "gc/heap.h"
40#include "gc/space/space.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070041#include "image.h"
jeffhao725a9572012-11-13 18:20:12 -080042#include "instrumentation.h"
Elliott Hughescf4c6c42011-09-01 15:16:42 -070043#include "intern_table.h"
Jeff Hao5d917302013-02-27 17:57:33 -080044#include "invoke_arg_array_builder.h"
Elliott Hughesc5f7c912011-08-18 14:00:42 -070045#include "jni_internal.h"
Brian Carlstromea46f952013-07-30 01:26:50 -070046#include "mirror/art_field-inl.h"
47#include "mirror/art_method-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080048#include "mirror/array.h"
Ian Rogers62d6c772013-02-27 08:32:07 -080049#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080050#include "mirror/class_loader.h"
Mathieu Chartierc528dba2013-11-26 12:00:11 -080051#include "mirror/stack_trace_element.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080052#include "mirror/throwable.h"
Elliott Hughes32d6e1e2011-10-11 14:47:44 -070053#include "monitor.h"
Brian Carlstrome24fa612011-09-29 00:53:55 -070054#include "oat_file.h"
Elliott Hughes726079d2011-10-07 18:43:44 -070055#include "ScopedLocalRef.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070056#include "scoped_thread_state_change.h"
Elliott Hughese27955c2011-08-26 15:21:24 -070057#include "signal_catcher.h"
Elliott Hughes457005c2012-04-16 13:54:25 -070058#include "signal_set.h"
Ian Rogers1f539342012-10-03 21:09:42 -070059#include "sirt_ref.h"
Brian Carlstrom578bbdc2011-07-21 14:07:47 -070060#include "thread.h"
Elliott Hughes8daa0922011-09-11 13:46:25 -070061#include "thread_list.h"
jeffhaob5e81852012-03-12 11:15:45 -070062#include "trace.h"
Dave Allison0aded082013-11-07 13:15:11 -080063#include "profiler.h"
Elliott Hughes3bb81562011-10-21 18:52:59 -070064#include "UniquePtr.h"
Ian Rogers776ac1f2012-04-13 23:36:36 -070065#include "verifier/method_verifier.h"
Elliott Hugheseac76672012-05-24 21:56:51 -070066#include "well_known_classes.h"
Carl Shapiro61e019d2011-07-14 16:53:09 -070067
Brian Carlstrom7934ac22013-07-26 10:54:15 -070068#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art.
Elliott Hughes90a33692011-08-30 13:27:07 -070069
Carl Shapiro1fb86202011-06-27 17:43:13 -070070namespace art {
71
Carl Shapiro2ed144c2011-07-26 16:52:08 -070072Runtime* Runtime::instance_ = NULL;
73
Elliott Hughesdcc24742011-09-07 14:02:44 -070074Runtime::Runtime()
Vladimir Marko2b5eaa22013-12-13 13:59:30 +000075 : compiler_callbacks_(nullptr),
Elliott Hughesd9c67be2012-02-02 19:54:06 -080076 is_zygote_(false),
Mathieu Chartier069387a2012-06-18 12:01:01 -070077 is_concurrent_gc_enabled_(true),
Anwar Ghuloum87183592013-08-14 12:12:19 -070078 is_explicit_gc_disabled_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -080079 compiler_filter_(kSpeed),
80 huge_method_threshold_(0),
81 large_method_threshold_(0),
82 small_method_threshold_(0),
83 tiny_method_threshold_(0),
84 num_dex_methods_threshold_(0),
85 sea_ir_mode_(false),
Elliott Hughes6cf23882012-06-15 15:42:07 -070086 default_stack_size_(0),
Ian Rogersef7d42f2014-01-06 12:55:46 -080087 heap_(nullptr),
Ian Rogersd9c4fc92013-10-01 19:45:43 -070088 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation),
Ian Rogersef7d42f2014-01-06 12:55:46 -080089 monitor_list_(nullptr),
90 monitor_pool_(nullptr),
91 thread_list_(nullptr),
92 intern_table_(nullptr),
93 class_linker_(nullptr),
94 signal_catcher_(nullptr),
95 java_vm_(nullptr),
96 pre_allocated_OutOfMemoryError_(nullptr),
97 resolution_method_(nullptr),
98 imt_conflict_method_(nullptr),
99 default_imt_(nullptr),
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800100 method_verifiers_lock_("Method verifiers lock"),
Ian Rogers120f1c72012-09-28 17:17:10 -0700101 threads_being_born_(0),
Ian Rogersc604d732012-10-14 16:09:54 -0700102 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)),
Elliott Hughes6b355752012-01-13 16:49:08 -0800103 shutting_down_(false),
Ian Rogers120f1c72012-09-28 17:17:10 -0700104 shutting_down_started_(false),
Elliott Hughesdcc24742011-09-07 14:02:44 -0700105 started_(false),
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700106 finished_starting_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800107 vfprintf_(nullptr),
108 exit_(nullptr),
109 abort_(nullptr),
jeffhao2692b572011-12-16 15:42:28 -0800110 stats_enabled_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800111 profile_(false),
112 profile_period_s_(0),
113 profile_duration_s_(0),
114 profile_interval_us_(0),
115 profile_backoff_coefficient_(0),
116 method_trace_(false),
Ian Rogers776ac1f2012-04-13 23:36:36 -0700117 method_trace_file_size_(0),
Ian Rogers62d6c772013-02-27 08:32:07 -0800118 instrumentation_(),
Ian Rogers365c1022012-06-22 15:05:28 -0700119 use_compile_time_class_path_(false),
Ian Rogersef7d42f2014-01-06 12:55:46 -0800120 main_thread_group_(nullptr),
121 system_thread_group_(nullptr),
122 system_class_loader_(nullptr),
123 dump_gc_performance_on_shutdown_(false) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700124 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800125 callee_save_methods_[i] = nullptr;
Ian Rogers4f0d07c2011-10-06 23:38:47 -0700126 }
Elliott Hughesdcc24742011-09-07 14:02:44 -0700127}
128
Carl Shapiro61e019d2011-07-14 16:53:09 -0700129Runtime::~Runtime() {
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -0800130 if (dump_gc_performance_on_shutdown_) {
131 // This can't be called from the Heap destructor below because it
132 // could call RosAlloc::InspectAll() which needs the thread_list
133 // to be still alive.
134 heap_->DumpGcPerformanceInfo(LOG(INFO));
135 }
136
Ian Rogers120f1c72012-09-28 17:17:10 -0700137 Thread* self = Thread::Current();
138 {
139 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
140 shutting_down_started_ = true;
141 while (threads_being_born_ > 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700142 shutdown_cond_->Wait(self);
Ian Rogers120f1c72012-09-28 17:17:10 -0700143 }
144 shutting_down_ = true;
145 }
Ian Rogers62d6c772013-02-27 08:32:07 -0800146 Trace::Shutdown();
jeffhaob5e81852012-03-12 11:15:45 -0700147
Mathieu Chartiera6399032012-06-11 18:49:50 -0700148 // Make sure to let the GC complete if it is running.
Mathieu Chartier590fee92013-09-13 13:46:47 -0700149 heap_->WaitForGcToComplete(self);
Mathieu Chartier35883cc2012-11-13 14:08:12 -0800150 heap_->DeleteThreadPool();
Mathieu Chartiera6399032012-06-11 18:49:50 -0700151
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700152 // Make sure our internal threads are dead before we start tearing down things they're using.
Elliott Hughese52e49b2012-04-02 16:05:44 -0700153 Dbg::StopJdwp();
Elliott Hughes5fe594f2011-09-08 12:33:17 -0700154 delete signal_catcher_;
155
Elliott Hughes038a8062011-09-18 14:12:41 -0700156 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended.
Elliott Hughes93e74e82011-09-13 11:07:03 -0700157 delete thread_list_;
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700158 delete monitor_list_;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800159 delete monitor_pool_;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700160 delete class_linker_;
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800161 delete heap_;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700162 delete intern_table_;
Elliott Hughesc5f7c912011-08-18 14:00:42 -0700163 delete java_vm_;
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700164 Thread::Shutdown();
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700165 QuasiAtomic::Shutdown();
Sebastien Hertz4d4adb12013-07-24 16:14:19 +0200166 verifier::MethodVerifier::Shutdown();
Carl Shapiro4acf4642011-07-26 18:54:13 -0700167 // TODO: acquire a static mutex on Runtime to avoid racing.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800168 CHECK(instance_ == nullptr || instance_ == this);
169 instance_ = nullptr;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700170}
171
Elliott Hughese0918552011-10-28 17:18:29 -0700172struct AbortState {
173 void Dump(std::ostream& os) {
Ian Rogersf08e4732013-04-09 09:45:49 -0700174 if (gAborting > 1) {
Elliott Hughescac6cc72011-11-03 20:31:21 -0700175 os << "Runtime aborting --- recursively, so no thread-specific detail!\n";
176 return;
177 }
Ian Rogersf08e4732013-04-09 09:45:49 -0700178 gAborting++;
Elliott Hughese0918552011-10-28 17:18:29 -0700179 os << "Runtime aborting...\n";
Elliott Hughes6c7d2442012-02-01 18:40:47 -0800180 if (Runtime::Current() == NULL) {
181 os << "(Runtime does not yet exist!)\n";
182 return;
183 }
Elliott Hughese0918552011-10-28 17:18:29 -0700184 Thread* self = Thread::Current();
185 if (self == NULL) {
186 os << "(Aborting thread was not attached to runtime!)\n";
187 } else {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700188 // TODO: we're aborting and the ScopedObjectAccess may attempt to acquire the mutator_lock_
189 // which may block indefinitely if there's a misbehaving thread holding it exclusively.
190 // The code below should be made robust to this.
191 ScopedObjectAccess soa(self);
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700192 os << "Aborting thread:\n";
Elliott Hughes899e7892012-01-24 14:57:32 -0800193 self->Dump(os);
194 if (self->IsExceptionPending()) {
Ian Rogers62d6c772013-02-27 08:32:07 -0800195 ThrowLocation throw_location;
196 mirror::Throwable* exception = self->GetException(&throw_location);
197 os << "Pending exception " << PrettyTypeOf(exception)
Ian Rogersbc939662013-08-15 10:26:54 -0700198 << " thrown by '" << throw_location.Dump() << "'\n"
Ian Rogers62d6c772013-02-27 08:32:07 -0800199 << exception->Dump();
Elliott Hughes899e7892012-01-24 14:57:32 -0800200 }
Elliott Hughese0918552011-10-28 17:18:29 -0700201 }
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700202 DumpAllThreads(os, self);
203 }
204
205 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS {
206 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self);
207 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self);
Ian Rogersfbd22912012-10-12 14:21:10 -0700208 if (!tll_already_held || !ml_already_held) {
209 os << "Dumping all threads without appropriate locks held:"
210 << (!tll_already_held ? " thread list lock" : "")
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700211 << (!ml_already_held ? " mutator lock" : "")
212 << "\n";
Ian Rogers2f7f9b62012-10-10 18:24:05 -0700213 }
Ian Rogersfbd22912012-10-12 14:21:10 -0700214 os << "All threads:\n";
215 Runtime::Current()->GetThreadList()->DumpLocked(os);
Elliott Hughese0918552011-10-28 17:18:29 -0700216 }
217};
218
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700219void Runtime::Abort() {
Ian Rogersf08e4732013-04-09 09:45:49 -0700220 gAborting++; // set before taking any locks
Brian Carlstrom81b88712012-11-05 19:21:30 -0800221
Elliott Hughes131aef82012-01-27 11:53:35 -0800222 // Ensure that we don't have multiple threads trying to abort at once,
223 // which would result in significantly worse diagnostics.
Ian Rogers50b35e22012-10-04 10:09:15 -0700224 MutexLock mu(Thread::Current(), *Locks::abort_lock_);
Elliott Hughes131aef82012-01-27 11:53:35 -0800225
Elliott Hughesffe67362011-07-17 12:09:27 -0700226 // Get any pending output out of the way.
227 fflush(NULL);
228
229 // Many people have difficulty distinguish aborts from crashes,
230 // so be explicit.
Elliott Hughese0918552011-10-28 17:18:29 -0700231 AbortState state;
Elliott Hughes9ee5f9c2012-02-03 18:33:16 -0800232 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state);
Elliott Hughesffe67362011-07-17 12:09:27 -0700233
Elliott Hughes8593fdb2012-04-21 20:53:44 -0700234 // Call the abort hook if we have one.
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700235 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) {
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700236 LOG(INTERNAL_FATAL) << "Calling abort hook...";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700237 Runtime::Current()->abort_();
238 // notreached
Elliott Hughes6c1c69e2012-04-23 16:12:51 -0700239 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700240 }
241
Elliott Hughesdd623db2013-06-11 11:20:23 -0700242#if defined(__GLIBC__)
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700243 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3),
244 // which POSIX defines in terms of raise(3), which POSIX defines in terms
245 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through
246 // libpthread, which means the stacks we dump would be useless. Calling
247 // tgkill(2) directly avoids that.
248 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700249 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM?
250 // 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 -0800251 exit(1);
Elliott Hughesdd623db2013-06-11 11:20:23 -0700252#else
253 abort();
Elliott Hughesd06a6c72012-05-30 17:59:06 -0700254#endif
Elliott Hughesffe67362011-07-17 12:09:27 -0700255 // notreached
256}
257
Mathieu Chartiercc236d72012-07-20 10:29:05 -0700258bool Runtime::PreZygoteFork() {
259 heap_->PreZygoteFork();
260 return true;
261}
262
Elliott Hughesbf86d042011-08-31 17:53:14 -0700263void Runtime::CallExitHook(jint status) {
264 if (exit_ != NULL) {
Elliott Hughes34e06962012-04-09 13:55:55 -0700265 ScopedThreadStateChange tsc(Thread::Current(), kNative);
Elliott Hughesbf86d042011-08-31 17:53:14 -0700266 exit_(status);
267 LOG(WARNING) << "Exit hook returned instead of exiting!";
268 }
269}
270
Brian Carlstrom8a436592011-08-15 21:27:23 -0700271// Parse a string of the form /[0-9]+[kKmMgG]?/, which is used to specify
272// memory sizes. [kK] indicates kilobytes, [mM] megabytes, and
273// [gG] gigabytes.
274//
275// "s" should point just past the "-Xm?" part of the string.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700276// "div" specifies a divisor, e.g. 1024 if the value must be a multiple
277// of 1024.
278//
279// The spec says the -Xmx and -Xms options must be multiples of 1024. It
280// doesn't say anything about -Xss.
281//
282// Returns 0 (a useless size) if "s" is malformed or specifies a low or
283// non-evenly-divisible value.
284//
Elliott Hughesc1f143d2011-12-01 17:31:10 -0800285size_t ParseMemoryOption(const char* s, size_t div) {
Brian Carlstrom8a436592011-08-15 21:27:23 -0700286 // strtoul accepts a leading [+-], which we don't want,
287 // so make sure our string starts with a decimal digit.
288 if (isdigit(*s)) {
Elliott Hughes398f64b2012-03-26 18:05:48 -0700289 char* s2;
290 size_t val = strtoul(s, &s2, 10);
Brian Carlstrom8a436592011-08-15 21:27:23 -0700291 if (s2 != s) {
292 // s2 should be pointing just after the number.
293 // If this is the end of the string, the user
294 // has specified a number of bytes. Otherwise,
295 // there should be exactly one more character
296 // that specifies a multiplier.
297 if (*s2 != '\0') {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700298 // The remainder of the string is either a single multiplier
299 // character, or nothing to indicate that the value is in
300 // bytes.
301 char c = *s2++;
302 if (*s2 == '\0') {
303 size_t mul;
304 if (c == '\0') {
305 mul = 1;
306 } else if (c == 'k' || c == 'K') {
307 mul = KB;
308 } else if (c == 'm' || c == 'M') {
309 mul = MB;
310 } else if (c == 'g' || c == 'G') {
311 mul = GB;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700312 } else {
Brian Carlstromf734cf52011-08-17 16:28:14 -0700313 // Unknown multiplier character.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700314 return 0;
315 }
Brian Carlstromf734cf52011-08-17 16:28:14 -0700316
317 if (val <= std::numeric_limits<size_t>::max() / mul) {
318 val *= mul;
319 } else {
320 // Clamp to a multiple of 1024.
321 val = std::numeric_limits<size_t>::max() & ~(1024-1);
322 }
323 } else {
324 // There's more than one character after the numeric part.
325 return 0;
326 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700327 }
328 // The man page says that a -Xm value must be a multiple of 1024.
329 if (val % div == 0) {
330 return val;
331 }
Carl Shapirofc322c72011-07-27 00:20:01 -0700332 }
333 }
Brian Carlstrom8a436592011-08-15 21:27:23 -0700334 return 0;
Carl Shapirofc322c72011-07-27 00:20:01 -0700335}
336
lzang16c2270b2014-01-29 14:21:25 +0800337static const std::string StringAfterChar(const std::string& s, char c) {
338 std::string::size_type colon = s.find(c);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800339 if (colon == std::string::npos) {
lzang16c2270b2014-01-29 14:21:25 +0800340 LOG(FATAL) << "Missing char " << c << " in string " << s;
341 }
342 // Add one to remove the char we were trimming until.
343 return s.substr(colon + 1);
344}
345
346static size_t ParseIntegerOrDie(const std::string& s, char after_char) {
347 std::string::size_type colon = s.find(after_char);
348 if (colon == std::string::npos) {
349 LOG(FATAL) << "Missing char " << after_char << " in string " << s;
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700350 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800351 const char* begin = &s[colon + 1];
Elliott Hughesbb1e8f02011-10-18 14:14:25 -0700352 char* end;
353 size_t result = strtoul(begin, &end, 10);
354 if (begin == end || *end != '\0') {
355 LOG(FATAL) << "Failed to parse integer in: " << s;
356 }
357 return result;
358}
359
lzang16c2270b2014-01-29 14:21:25 +0800360
361static double ParseDoubleOrDie(const std::string& option, char after_char, double min, double max,
362 bool ignore_unrecognized, double defval) {
363 std::istringstream iss(StringAfterChar(option, after_char));
Dave Allison0aded082013-11-07 13:15:11 -0800364 double value;
365 iss >> value;
366 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range.
367 const bool sane_val = iss.eof() && (value >= min) && (value <= max);
368 if (!sane_val) {
369 if (ignore_unrecognized) {
370 return defval;
371 }
372 LOG(FATAL)<< "Invalid option '" << option << "'";
373 return defval;
374 }
375 return value;
376}
377
Mathieu Chartier6aa3df92013-09-17 15:17:28 -0700378void Runtime::SweepSystemWeaks(RootVisitor* visitor, void* arg) {
379 GetInternTable()->SweepInternTableWeaks(visitor, arg);
380 GetMonitorList()->SweepMonitorList(visitor, arg);
381 GetJavaVM()->SweepJniWeakGlobals(visitor, arg);
382}
383
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800384static gc::CollectorType ParseCollectorType(const std::string& option) {
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800385 if (option == "MS" || option == "nonconcurrent") {
386 return gc::kCollectorTypeMS;
387 } else if (option == "CMS" || option == "concurrent") {
388 return gc::kCollectorTypeCMS;
389 } else if (option == "SS") {
390 return gc::kCollectorTypeSS;
391 } else if (option == "GSS") {
392 return gc::kCollectorTypeGSS;
393 } else {
394 return gc::kCollectorTypeNone;
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800395 }
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800396}
397
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700398Runtime::ParsedOptions* Runtime::ParsedOptions::Create(const Options& options, bool ignore_unrecognized) {
Elliott Hughes90a33692011-08-30 13:27:07 -0700399 UniquePtr<ParsedOptions> parsed(new ParsedOptions());
Brian Carlstroma004aa92012-02-08 18:05:09 -0800400 const char* boot_class_path_string = getenv("BOOTCLASSPATH");
401 if (boot_class_path_string != NULL) {
402 parsed->boot_class_path_string_ = boot_class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700403 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800404 const char* class_path_string = getenv("CLASSPATH");
405 if (class_path_string != NULL) {
406 parsed->class_path_string_ = class_path_string;
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700407 }
Elliott Hughes67d92002012-03-26 15:08:51 -0700408 // -Xcheck:jni is off by default for regular builds but on by default in debug builds.
409 parsed->check_jni_ = kIsDebugBuild;
Elliott Hughes85d15452011-09-16 17:33:01 -0700410
Ian Rogers1d54e732013-05-02 21:10:01 -0700411 parsed->heap_initial_size_ = gc::Heap::kDefaultInitialSize;
412 parsed->heap_maximum_size_ = gc::Heap::kDefaultMaximumSize;
413 parsed->heap_min_free_ = gc::Heap::kDefaultMinFree;
414 parsed->heap_max_free_ = gc::Heap::kDefaultMaxFree;
415 parsed->heap_target_utilization_ = gc::Heap::kDefaultTargetUtilization;
Mathieu Chartier692fafd2013-11-29 17:24:40 -0800416 parsed->heap_growth_limit_ = 0; // 0 means no growth limit .
Mathieu Chartier63a54342013-07-23 13:17:59 -0700417 // Default to number of processors minus one since the main GC thread also does work.
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700418 parsed->parallel_gc_threads_ = sysconf(_SC_NPROCESSORS_CONF) - 1;
419 // Only the main GC thread, no workers.
420 parsed->conc_gc_threads_ = 0;
Mathieu Chartier0de9f732013-11-22 17:58:48 -0800421 // Default is CMS which is Sticky + Partial + Full CMS GC.
Mathieu Chartier0f875ef2014-01-14 15:49:54 -0800422 parsed->collector_type_ = gc::kCollectorTypeCMS;
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800423 // If background_collector_type_ is kCollectorTypeNone, it defaults to the collector_type_ after
424 // parsing options.
425 parsed->background_collector_type_ = gc::kCollectorTypeNone;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700426 parsed->stack_size_ = 0; // 0 means default.
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700427 parsed->max_spins_before_thin_lock_inflation_ = Monitor::kDefaultMaxSpinsBeforeThinLockInflation;
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700428 parsed->low_memory_mode_ = false;
Mathieu Chartier692fafd2013-11-29 17:24:40 -0800429 parsed->use_tlab_ = false;
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800430 parsed->verify_pre_gc_heap_ = false;
431 parsed->verify_post_gc_heap_ = kIsDebugBuild;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700432
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000433 parsed->compiler_callbacks_ = nullptr;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700434 parsed->is_zygote_ = false;
Ian Rogers50ffee22012-11-20 11:47:44 -0800435 parsed->interpreter_only_ = false;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700436 parsed->is_explicit_gc_disabled_ = false;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700437
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700438 parsed->long_pause_log_threshold_ = gc::Heap::kDefaultLongPauseLogThreshold;
439 parsed->long_gc_log_threshold_ = gc::Heap::kDefaultLongGCLogThreshold;
Mathieu Chartierff3b24a2013-11-22 16:04:25 -0800440 parsed->dump_gc_performance_on_shutdown_ = false;
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700441 parsed->ignore_max_footprint_ = false;
442
Elliott Hughesfc861622011-10-17 17:57:47 -0700443 parsed->lock_profiling_threshold_ = 0;
444 parsed->hook_is_sensitive_thread_ = NULL;
445
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700446 parsed->hook_vfprintf_ = vfprintf;
447 parsed->hook_exit_ = exit;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700448 parsed->hook_abort_ = NULL; // We don't call abort(3) by default; see Runtime::Abort.
Brian Carlstrom8a436592011-08-15 21:27:23 -0700449
buzbeea024a062013-07-31 10:47:37 -0700450 parsed->compiler_filter_ = Runtime::kDefaultCompilerFilter;
451 parsed->huge_method_threshold_ = Runtime::kDefaultHugeMethodThreshold;
452 parsed->large_method_threshold_ = Runtime::kDefaultLargeMethodThreshold;
453 parsed->small_method_threshold_ = Runtime::kDefaultSmallMethodThreshold;
454 parsed->tiny_method_threshold_ = Runtime::kDefaultTinyMethodThreshold;
455 parsed->num_dex_methods_threshold_ = Runtime::kDefaultNumDexMethodsThreshold;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700456
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700457 parsed->sea_ir_mode_ = false;
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700458// gLogVerbosity.class_linker = true; // TODO: don't check this in!
459// gLogVerbosity.compiler = true; // TODO: don't check this in!
Anwar Ghuloum75a43f12013-08-13 17:22:14 -0700460// gLogVerbosity.verifier = true; // TODO: don't check this in!
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700461// gLogVerbosity.heap = true; // TODO: don't check this in!
462// gLogVerbosity.gc = true; // TODO: don't check this in!
463// gLogVerbosity.jdwp = true; // TODO: don't check this in!
464// gLogVerbosity.jni = true; // TODO: don't check this in!
465// gLogVerbosity.monitor = true; // TODO: don't check this in!
466// gLogVerbosity.startup = true; // TODO: don't check this in!
467// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
468// gLogVerbosity.threads = true; // TODO: don't check this in!
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800469
jeffhaob5e81852012-03-12 11:15:45 -0700470 parsed->method_trace_ = false;
471 parsed->method_trace_file_ = "/data/method-trace-file.bin";
472 parsed->method_trace_file_size_ = 10 * MB;
473
Dave Allison0aded082013-11-07 13:15:11 -0800474 parsed->profile_ = false;
475 parsed->profile_period_s_ = 10; // Seconds.
476 parsed->profile_duration_s_ = 20; // Seconds.
477 parsed->profile_interval_us_ = 500; // Microseconds.
478 parsed->profile_backoff_coefficient_ = 2.0;
479
Brian Carlstrom8a436592011-08-15 21:27:23 -0700480 for (size_t i = 0; i < options.size(); ++i) {
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800481 const std::string option(options[i].first);
Brian Carlstrom0796af02011-10-12 14:31:45 -0700482 if (true && options[0].first == "-Xzygote") {
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700483 LOG(INFO) << "option[" << i << "]=" << option;
484 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800485 if (StartsWith(option, "-Xbootclasspath:")) {
Brian Carlstroma004aa92012-02-08 18:05:09 -0800486 parsed->boot_class_path_string_ = option.substr(strlen("-Xbootclasspath:")).data();
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700487 } else if (option == "-classpath" || option == "-cp") {
488 // TODO: support -Djava.class.path
489 i++;
490 if (i == options.size()) {
491 // TODO: usage
492 LOG(FATAL) << "Missing required class path value for " << option;
493 return NULL;
494 }
Brian Carlstroma004aa92012-02-08 18:05:09 -0800495 const StringPiece& value = options[i].first;
496 parsed->class_path_string_ = value.data();
497 } else if (option == "bootclasspath") {
498 parsed->boot_class_path_
499 = reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800500 } else if (StartsWith(option, "-Ximage:")) {
lzang16c2270b2014-01-29 14:21:25 +0800501 parsed->image_ = StringAfterChar(option, ':');
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800502 } else if (StartsWith(option, "-Xcheck:jni")) {
Elliott Hughes515a5bc2011-08-17 11:08:34 -0700503 parsed->check_jni_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800504 } else if (StartsWith(option, "-Xrunjdwp:") || StartsWith(option, "-agentlib:jdwp=")) {
505 std::string tail(option.substr(option[1] == 'X' ? 10 : 15));
Elliott Hughes3bb81562011-10-21 18:52:59 -0700506 if (tail == "help" || !Dbg::ParseJdwpOptions(tail)) {
507 LOG(FATAL) << "Example: -Xrunjdwp:transport=dt_socket,address=8000,server=y\n"
508 << "Example: -Xrunjdwp:transport=dt_socket,address=localhost:6500,server=n";
509 return NULL;
510 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800511 } else if (StartsWith(option, "-Xms")) {
512 size_t size = ParseMemoryOption(option.substr(strlen("-Xms")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700513 if (size == 0) {
514 if (ignore_unrecognized) {
515 continue;
516 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700517 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700518 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700519 return NULL;
520 }
521 parsed->heap_initial_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800522 } else if (StartsWith(option, "-Xmx")) {
523 size_t size = ParseMemoryOption(option.substr(strlen("-Xmx")).c_str(), 1024);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700524 if (size == 0) {
525 if (ignore_unrecognized) {
526 continue;
527 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700528 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700529 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700530 return NULL;
531 }
532 parsed->heap_maximum_size_ = size;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800533 } else if (StartsWith(option, "-XX:HeapGrowthLimit=")) {
534 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapGrowthLimit=")).c_str(), 1024);
jeffhaoc1160702011-10-27 15:48:45 -0700535 if (size == 0) {
536 if (ignore_unrecognized) {
537 continue;
538 }
539 // TODO: usage
540 LOG(FATAL) << "Failed to parse " << option;
541 return NULL;
542 }
543 parsed->heap_growth_limit_ = size;
Mathieu Chartier0051be62012-10-12 17:47:11 -0700544 } else if (StartsWith(option, "-XX:HeapMinFree=")) {
545 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMinFree=")).c_str(), 1024);
546 if (size == 0) {
547 if (ignore_unrecognized) {
548 continue;
549 }
550 // TODO: usage
551 LOG(FATAL) << "Failed to parse " << option;
552 return NULL;
553 }
554 parsed->heap_min_free_ = size;
555 } else if (StartsWith(option, "-XX:HeapMaxFree=")) {
556 size_t size = ParseMemoryOption(option.substr(strlen("-XX:HeapMaxFree=")).c_str(), 1024);
557 if (size == 0) {
558 if (ignore_unrecognized) {
559 continue;
560 }
561 // TODO: usage
562 LOG(FATAL) << "Failed to parse " << option;
563 return NULL;
564 }
565 parsed->heap_max_free_ = size;
566 } else if (StartsWith(option, "-XX:HeapTargetUtilization=")) {
lzang16c2270b2014-01-29 14:21:25 +0800567 parsed->heap_target_utilization_ = ParseDoubleOrDie(
568 option, '=', 0.1, 0.9, ignore_unrecognized, parsed->heap_target_utilization_);
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700569 } else if (StartsWith(option, "-XX:ParallelGCThreads=")) {
lzang16c2270b2014-01-29 14:21:25 +0800570 parsed->parallel_gc_threads_ = ParseIntegerOrDie(option, '=');
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700571 } else if (StartsWith(option, "-XX:ConcGCThreads=")) {
lzang16c2270b2014-01-29 14:21:25 +0800572 parsed->conc_gc_threads_ = ParseIntegerOrDie(option, '=');
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800573 } else if (StartsWith(option, "-Xss")) {
574 size_t size = ParseMemoryOption(option.substr(strlen("-Xss")).c_str(), 1);
Brian Carlstromf734cf52011-08-17 16:28:14 -0700575 if (size == 0) {
576 if (ignore_unrecognized) {
577 continue;
578 }
Brian Carlstrom4a289ed2011-08-16 17:17:49 -0700579 // TODO: usage
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700580 LOG(FATAL) << "Failed to parse " << option;
Brian Carlstromf734cf52011-08-17 16:28:14 -0700581 return NULL;
582 }
583 parsed->stack_size_ = size;
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700584 } else if (StartsWith(option, "-XX:MaxSpinsBeforeThinLockInflation=")) {
lzang16c2270b2014-01-29 14:21:25 +0800585 parsed->max_spins_before_thin_lock_inflation_ = ParseIntegerOrDie(option, '=');
586 } else if (StartsWith(option, "-XX:LongPauseLogThreshold=")) {
587 parsed->long_pause_log_threshold_ = MsToNs(ParseIntegerOrDie(option, '='));
588 } else if (StartsWith(option, "-XX:LongGCLogThreshold=")) {
589 parsed->long_gc_log_threshold_ = MsToNs(ParseIntegerOrDie(option, '='));
Mathieu Chartierff3b24a2013-11-22 16:04:25 -0800590 } else if (option == "-XX:DumpGCPerformanceOnShutdown") {
591 parsed->dump_gc_performance_on_shutdown_ = true;
Mathieu Chartier2775ee42013-08-20 17:43:47 -0700592 } else if (option == "-XX:IgnoreMaxFootprint") {
593 parsed->ignore_max_footprint_ = true;
Mathieu Chartiere0a53e92013-08-05 10:17:40 -0700594 } else if (option == "-XX:LowMemoryMode") {
595 parsed->low_memory_mode_ = true;
Mathieu Chartier692fafd2013-11-29 17:24:40 -0800596 } else if (option == "-XX:UseTLAB") {
597 parsed->use_tlab_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800598 } else if (StartsWith(option, "-D")) {
599 parsed->properties_.push_back(option.substr(strlen("-D")));
600 } else if (StartsWith(option, "-Xjnitrace:")) {
601 parsed->jni_trace_ = option.substr(strlen("-Xjnitrace:"));
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000602 } else if (option == "compilercallbacks") {
603 parsed->compiler_callbacks_ =
604 reinterpret_cast<CompilerCallbacks*>(const_cast<void*>(options[i].second));
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700605 } else if (option == "-Xzygote") {
606 parsed->is_zygote_ = true;
Ian Rogers50ffee22012-11-20 11:47:44 -0800607 } else if (option == "-Xint") {
608 parsed->interpreter_only_ = true;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700609 } else if (StartsWith(option, "-Xgc:")) {
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800610 std::vector<std::string> gc_options;
611 Split(option.substr(strlen("-Xgc:")), ',', gc_options);
612 for (const std::string& gc_option : gc_options) {
613 gc::CollectorType collector_type = ParseCollectorType(gc_option);
614 if (collector_type != gc::kCollectorTypeNone) {
Hiroshi Yamauchibe1ca552014-01-15 11:46:48 -0800615 parsed->collector_type_ = collector_type;
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800616 } else if (gc_option == "preverify") {
617 parsed->verify_pre_gc_heap_ = true;
618 } else if (gc_option == "nopreverify") {
619 parsed->verify_pre_gc_heap_ = false;
620 } else if (gc_option == "postverify") {
621 parsed->verify_post_gc_heap_ = true;
622 } else if (gc_option == "nopostverify") {
623 parsed->verify_post_gc_heap_ = false;
624 } else {
625 LOG(WARNING) << "Ignoring unknown -Xgc option: " << gc_option;
626 }
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800627 }
628 } else if (StartsWith(option, "-XX:BackgroundGC=")) {
lzang16c2270b2014-01-29 14:21:25 +0800629 const std::string substring = StringAfterChar(option, '=');
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800630 gc::CollectorType collector_type = ParseCollectorType(substring);
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800631 if (collector_type != gc::kCollectorTypeNone) {
632 parsed->background_collector_type_ = collector_type;
Mathieu Chartier938a03b2014-01-16 15:10:31 -0800633 } else {
634 LOG(WARNING) << "Ignoring unknown -XX:BackgroundGC option: " << substring;
Mathieu Chartier069387a2012-06-18 12:01:01 -0700635 }
Anwar Ghuloum87183592013-08-14 12:12:19 -0700636 } else if (option == "-XX:+DisableExplicitGC") {
637 parsed->is_explicit_gc_disabled_ = true;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800638 } else if (StartsWith(option, "-verbose:")) {
Elliott Hughes0af55432011-08-17 18:37:28 -0700639 std::vector<std::string> verbose_options;
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800640 Split(option.substr(strlen("-verbose:")), ',', verbose_options);
Elliott Hughes0af55432011-08-17 18:37:28 -0700641 for (size_t i = 0; i < verbose_options.size(); ++i) {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800642 if (verbose_options[i] == "class") {
643 gLogVerbosity.class_linker = true;
Anwar Ghuloum75a43f12013-08-13 17:22:14 -0700644 } else if (verbose_options[i] == "verifier") {
645 gLogVerbosity.verifier = true;
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800646 } else if (verbose_options[i] == "compiler") {
647 gLogVerbosity.compiler = true;
648 } else if (verbose_options[i] == "heap") {
649 gLogVerbosity.heap = true;
650 } else if (verbose_options[i] == "gc") {
651 gLogVerbosity.gc = true;
652 } else if (verbose_options[i] == "jdwp") {
653 gLogVerbosity.jdwp = true;
654 } else if (verbose_options[i] == "jni") {
655 gLogVerbosity.jni = true;
656 } else if (verbose_options[i] == "monitor") {
657 gLogVerbosity.monitor = true;
658 } else if (verbose_options[i] == "startup") {
659 gLogVerbosity.startup = true;
660 } else if (verbose_options[i] == "third-party-jni") {
661 gLogVerbosity.third_party_jni = true;
662 } else if (verbose_options[i] == "threads") {
663 gLogVerbosity.threads = true;
664 } else {
665 LOG(WARNING) << "Ignoring unknown -verbose option: " << verbose_options[i];
666 }
Elliott Hughes0af55432011-08-17 18:37:28 -0700667 }
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800668 } else if (StartsWith(option, "-Xjnigreflimit:")) {
Elliott Hughes2010a602013-07-02 14:17:23 -0700669 // Silently ignored for backwards compatibility.
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800670 } else if (StartsWith(option, "-Xlockprofthreshold:")) {
lzang16c2270b2014-01-29 14:21:25 +0800671 parsed->lock_profiling_threshold_ = ParseIntegerOrDie(option, ':');
Elliott Hughesf1a5adc2012-02-10 18:09:35 -0800672 } else if (StartsWith(option, "-Xstacktracefile:")) {
lzang16c2270b2014-01-29 14:21:25 +0800673 parsed->stack_trace_file_ = StringAfterChar(option, ':');
Elliott Hughesfc861622011-10-17 17:57:47 -0700674 } else if (option == "sensitiveThread") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700675 parsed->hook_is_sensitive_thread_ = reinterpret_cast<bool (*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700676 } else if (option == "vfprintf") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700677 parsed->hook_vfprintf_ =
678 reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700679 } else if (option == "exit") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700680 parsed->hook_exit_ = reinterpret_cast<void(*)(jint)>(const_cast<void*>(options[i].second));
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700681 } else if (option == "abort") {
Ian Rogers1b09b092012-08-20 15:35:52 -0700682 parsed->hook_abort_ = reinterpret_cast<void(*)()>(const_cast<void*>(options[i].second));
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700683 } else if (option == "host-prefix") {
684 parsed->host_prefix_ = reinterpret_cast<const char*>(options[i].second);
Elliott Hughesb3e66df2012-01-12 14:49:18 -0800685 } else if (option == "-Xgenregmap" || option == "-Xgc:precise") {
686 // We silently ignore these for backwards compatibility.
jeffhaob5e81852012-03-12 11:15:45 -0700687 } else if (option == "-Xmethod-trace") {
688 parsed->method_trace_ = true;
689 } else if (StartsWith(option, "-Xmethod-trace-file:")) {
690 parsed->method_trace_file_ = option.substr(strlen("-Xmethod-trace-file:"));
691 } else if (StartsWith(option, "-Xmethod-trace-file-size:")) {
lzang16c2270b2014-01-29 14:21:25 +0800692 parsed->method_trace_file_size_ = ParseIntegerOrDie(option, ':');
Elliott Hughese119a362012-05-22 17:37:06 -0700693 } else if (option == "-Xprofile:threadcpuclock") {
694 Trace::SetDefaultClockSource(kProfilerClockSourceThreadCpu);
695 } else if (option == "-Xprofile:wallclock") {
696 Trace::SetDefaultClockSource(kProfilerClockSourceWall);
697 } else if (option == "-Xprofile:dualclock") {
698 Trace::SetDefaultClockSource(kProfilerClockSourceDual);
Dave Allison0aded082013-11-07 13:15:11 -0800699 } else if (StartsWith(option, "-Xprofile:")) {
lzang16c2270b2014-01-29 14:21:25 +0800700 parsed->profile_output_filename_ = StringAfterChar(option, ';');
Dave Allison0aded082013-11-07 13:15:11 -0800701 parsed->profile_ = true;
702 } else if (StartsWith(option, "-Xprofile-period:")) {
lzang16c2270b2014-01-29 14:21:25 +0800703 parsed->profile_period_s_ = ParseIntegerOrDie(option, ':');
Dave Allison0aded082013-11-07 13:15:11 -0800704 } else if (StartsWith(option, "-Xprofile-duration:")) {
lzang16c2270b2014-01-29 14:21:25 +0800705 parsed->profile_duration_s_ = ParseIntegerOrDie(option, ':');
Dave Allison0aded082013-11-07 13:15:11 -0800706 } else if (StartsWith(option, "-Xprofile-interval:")) {
lzang16c2270b2014-01-29 14:21:25 +0800707 parsed->profile_interval_us_ = ParseIntegerOrDie(option, ':');
Dave Allison0aded082013-11-07 13:15:11 -0800708 } else if (StartsWith(option, "-Xprofile-backoff:")) {
lzang16c2270b2014-01-29 14:21:25 +0800709 parsed->profile_backoff_coefficient_ = ParseDoubleOrDie(
710 option, ':', 1.0, 10.0, ignore_unrecognized, parsed->profile_backoff_coefficient_);
buzbeea024a062013-07-31 10:47:37 -0700711 } else if (option == "-compiler-filter:interpret-only") {
712 parsed->compiler_filter_ = kInterpretOnly;
buzbeea024a062013-07-31 10:47:37 -0700713 } else if (option == "-compiler-filter:space") {
714 parsed->compiler_filter_ = kSpace;
715 } else if (option == "-compiler-filter:balanced") {
716 parsed->compiler_filter_ = kBalanced;
717 } else if (option == "-compiler-filter:speed") {
718 parsed->compiler_filter_ = kSpeed;
buzbeefe9ca402013-08-21 09:48:11 -0700719 } else if (option == "-compiler-filter:everything") {
720 parsed->compiler_filter_ = kEverything;
Brian Carlstrom2ce745c2013-07-17 17:44:30 -0700721 } else if (option == "-sea_ir") {
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700722 parsed->sea_ir_mode_ = true;
buzbeea024a062013-07-31 10:47:37 -0700723 } else if (StartsWith(option, "-huge-method-max:")) {
lzang16c2270b2014-01-29 14:21:25 +0800724 parsed->huge_method_threshold_ = ParseIntegerOrDie(option, ':');
buzbeea024a062013-07-31 10:47:37 -0700725 } else if (StartsWith(option, "-large-method-max:")) {
lzang16c2270b2014-01-29 14:21:25 +0800726 parsed->large_method_threshold_ = ParseIntegerOrDie(option, ':');
buzbeea024a062013-07-31 10:47:37 -0700727 } else if (StartsWith(option, "-small-method-max:")) {
lzang16c2270b2014-01-29 14:21:25 +0800728 parsed->small_method_threshold_ = ParseIntegerOrDie(option, ':');
buzbeea024a062013-07-31 10:47:37 -0700729 } else if (StartsWith(option, "-tiny-method-max:")) {
lzang16c2270b2014-01-29 14:21:25 +0800730 parsed->tiny_method_threshold_ = ParseIntegerOrDie(option, ':');
buzbeea024a062013-07-31 10:47:37 -0700731 } else if (StartsWith(option, "-num-dex-methods-max:")) {
lzang16c2270b2014-01-29 14:21:25 +0800732 parsed->num_dex_methods_threshold_ = ParseIntegerOrDie(option, ':');
Brian Carlstrom8a436592011-08-15 21:27:23 -0700733 } else {
734 if (!ignore_unrecognized) {
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700735 // TODO: print usage via vfprintf
Brian Carlstrom27ec9612011-09-19 20:20:38 -0700736 LOG(ERROR) << "Unrecognized option " << option;
737 // TODO: this should exit, but for now tolerate unknown options
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700738 // return NULL;
Brian Carlstrom8a436592011-08-15 21:27:23 -0700739 }
740 }
741 }
742
Brian Carlstromfb67b722013-06-24 23:41:51 -0700743 // If a reference to the dalvik core.jar snuck in, replace it with
744 // the art specific version. This can happen with on device
745 // boot.art/boot.oat generation by GenerateImage which relies on the
746 // value of BOOTCLASSPATH.
747 std::string core_jar("/core.jar");
748 size_t core_jar_pos = parsed->boot_class_path_string_.find(core_jar);
749 if (core_jar_pos != std::string::npos) {
750 parsed->boot_class_path_string_.replace(core_jar_pos, core_jar.size(), "/core-libart.jar");
751 }
752
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000753 if (parsed->compiler_callbacks_ == nullptr && parsed->image_.empty()) {
Brian Carlstrom223f20f2012-02-04 23:06:55 -0800754 parsed->image_ += GetAndroidRoot();
755 parsed->image_ += "/framework/boot.art";
Brian Carlstrom5de8fe52011-10-16 14:10:09 -0700756 }
jeffhaoc1160702011-10-27 15:48:45 -0700757 if (parsed->heap_growth_limit_ == 0) {
758 parsed->heap_growth_limit_ = parsed->heap_maximum_size_;
759 }
Mathieu Chartiere6da9af2013-12-16 11:54:42 -0800760 if (parsed->background_collector_type_ == gc::kCollectorTypeNone) {
761 parsed->background_collector_type_ = parsed->collector_type_;
762 }
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700763 return parsed.release();
Brian Carlstrom8a436592011-08-15 21:27:23 -0700764}
765
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700766bool Runtime::Create(const Options& options, bool ignore_unrecognized) {
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700767 // TODO: acquire a static mutex on Runtime to avoid racing.
768 if (Runtime::instance_ != NULL) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700769 return false;
Carl Shapiro2ed144c2011-07-26 16:52:08 -0700770 }
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700771 InitLogging(NULL); // Calls Locks::Init() as a side effect.
Elliott Hughesdcc24742011-09-07 14:02:44 -0700772 instance_ = new Runtime;
773 if (!instance_->Init(options, ignore_unrecognized)) {
774 delete instance_;
775 instance_ = NULL;
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700776 return false;
Carl Shapiro61e019d2011-07-14 16:53:09 -0700777 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700778 return true;
Brian Carlstrom69b15fb2011-09-03 12:25:21 -0700779}
Elliott Hughes0af55432011-08-17 18:37:28 -0700780
Brian Carlstromce888532013-10-10 00:32:58 -0700781jobject CreateSystemClassLoader() {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -0800782 if (Runtime::Current()->UseCompileTimeClassPath()) {
Brian Carlstromce888532013-10-10 00:32:58 -0700783 return NULL;
Brian Carlstromaded5f72011-10-07 17:15:04 -0700784 }
785
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700786 ScopedObjectAccess soa(Thread::Current());
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800787 ClassLinker* cl = Runtime::Current()->GetClassLinker();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700788
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800789 SirtRef<mirror::Class> class_loader_class(
790 soa.Self(), soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader));
791 CHECK(cl->EnsureInitialized(class_loader_class, true, true));
Brian Carlstromaded5f72011-10-07 17:15:04 -0700792
Brian Carlstromea46f952013-07-30 01:26:50 -0700793 mirror::ArtMethod* getSystemClassLoader =
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800794 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;");
Brian Carlstromdf143242011-10-10 18:05:34 -0700795 CHECK(getSystemClassLoader != NULL);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700796
Jeff Hao5d917302013-02-27 17:57:33 -0800797 JValue result;
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800798 ArgArray arg_array(nullptr, 0);
Jeff Hao6474d192013-03-26 14:08:09 -0700799 InvokeWithArgArray(soa, getSystemClassLoader, &arg_array, &result, 'L');
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800800 SirtRef<mirror::ClassLoader> class_loader(soa.Self(),
801 down_cast<mirror::ClassLoader*>(result.GetL()));
802 CHECK(class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700803 JNIEnv* env = soa.Self()->GetJniEnv();
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800804 ScopedLocalRef<jobject> system_class_loader(env,
805 soa.AddLocalReference<jobject>(class_loader.get()));
806 CHECK(system_class_loader.get() != nullptr);
Brian Carlstromce888532013-10-10 00:32:58 -0700807
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800808 soa.Self()->SetClassLoaderOverride(class_loader.get());
Ian Rogers365c1022012-06-22 15:05:28 -0700809
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800810 SirtRef<mirror::Class> thread_class(soa.Self(),
811 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread));
812 CHECK(cl->EnsureInitialized(thread_class, true, true));
Ian Rogers365c1022012-06-22 15:05:28 -0700813
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800814 mirror::ArtField* contextClassLoader =
815 thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;");
Jesse Wilson1b2b2f22011-11-22 11:47:44 -0500816 CHECK(contextClassLoader != NULL);
Ian Rogers365c1022012-06-22 15:05:28 -0700817
Mathieu Chartierc528dba2013-11-26 12:00:11 -0800818 contextClassLoader->SetObject(soa.Self()->GetPeer(), class_loader.get());
Brian Carlstromce888532013-10-10 00:32:58 -0700819
820 return env->NewGlobalRef(system_class_loader.get());
Brian Carlstromaded5f72011-10-07 17:15:04 -0700821}
822
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700823bool Runtime::Start() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800824 VLOG(startup) << "Runtime::Start entering";
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700825
826 CHECK(host_prefix_.empty()) << host_prefix_;
827
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700828 // Restore main thread state to kNative as expected by native code.
Ian Rogersa436fde2013-08-27 23:34:06 -0700829 Thread* self = Thread::Current();
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700830 self->TransitionFromRunnableToSuspended(kNative);
831
Brian Carlstrom5d40f182011-09-26 22:29:18 -0700832 started_ = true;
833
Brian Carlstromae826982011-11-09 01:33:42 -0800834 // InitNativeMethods needs to be after started_ so that the classes
835 // it touches will have methods linked to the oat file if necessary.
836 InitNativeMethods();
837
Ian Rogers365c1022012-06-22 15:05:28 -0700838 // Initialize well known thread group values that may be accessed threads while attaching.
839 InitThreadGroups(self);
840
Jesse Wilson9a6bae82011-11-14 14:57:30 -0500841 Thread::FinishStartup();
842
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700843 if (is_zygote_) {
844 if (!InitZygote()) {
845 return false;
846 }
847 } else {
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700848 DidForkFromZygote();
849 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700850
Elliott Hughes85d15452011-09-16 17:33:01 -0700851 StartDaemonThreads();
Brian Carlstrom0a5b14d2011-09-27 13:29:15 -0700852
Brian Carlstromce888532013-10-10 00:32:58 -0700853 system_class_loader_ = CreateSystemClassLoader();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700854
Elliott Hughes225f5a12012-06-11 11:23:48 -0700855 self->GetJniEnv()->locals.AssertEmpty();
Elliott Hughes726079d2011-10-07 18:43:44 -0700856
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800857 VLOG(startup) << "Runtime::Start exiting";
Mathieu Chartier7664f5c2012-06-08 18:15:32 -0700858
859 finished_starting_ = true;
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700860
Dave Allison0aded082013-11-07 13:15:11 -0800861 if (profile_) {
862 // User has asked for a profile using -Xprofile
863 StartProfiler(profile_output_filename_.c_str(), true);
864 }
865
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700866 return true;
Elliott Hughes85d15452011-09-16 17:33:01 -0700867}
868
Ian Rogers120f1c72012-09-28 17:17:10 -0700869void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) {
870 DCHECK_GT(threads_being_born_, 0U);
871 threads_being_born_--;
872 if (shutting_down_started_ && threads_being_born_ == 0) {
Ian Rogersc604d732012-10-14 16:09:54 -0700873 shutdown_cond_->Broadcast(Thread::Current());
Ian Rogers120f1c72012-09-28 17:17:10 -0700874 }
875}
876
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700877// Do zygote-mode-only initialization.
878bool Runtime::InitZygote() {
879 // zygote goes into its own process group
Brian Carlstromb1eba212013-07-17 18:07:19 -0700880 setpgid(0, 0);
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700881
882 // See storage config details at http://source.android.com/tech/storage/
883 // Create private mount namespace shared by all children
884 if (unshare(CLONE_NEWNS) == -1) {
885 PLOG(WARNING) << "Failed to unshare()";
886 return false;
887 }
888
889 // Mark rootfs as being a slave so that changes from default
890 // namespace only flow into our children.
891 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) {
892 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE";
893 return false;
894 }
895
896 // Create a staging tmpfs that is shared by our children; they will
897 // bind mount storage into their respective private namespaces, which
898 // are isolated from each other.
899 const char* target_base = getenv("EMULATED_STORAGE_TARGET");
900 if (target_base != NULL) {
901 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV,
Jeff Sharkey52cd1e82013-09-17 16:25:12 -0700902 "uid=0,gid=1028,mode=0751") == -1) {
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700903 LOG(WARNING) << "Failed to mount tmpfs to " << target_base;
904 return false;
905 }
906 }
907
908 return true;
909}
910
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700911void Runtime::DidForkFromZygote() {
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700912 is_zygote_ = false;
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700913
Mathieu Chartier02b6a782012-10-26 13:51:26 -0700914 // Create the thread pool.
915 heap_->CreateThreadPool();
916
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700917 StartSignalCatcher();
Elliott Hughesd1cc8362011-10-24 16:58:50 -0700918
919 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y",
920 // this will pause the runtime, so we probably want this to come last.
921 Dbg::StartJdwp();
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700922}
923
924void Runtime::StartSignalCatcher() {
925 if (!is_zygote_) {
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700926 signal_catcher_ = new SignalCatcher(stack_trace_file_);
Brian Carlstromcaabb1b2011-10-11 18:09:13 -0700927 }
928}
929
Mathieu Chartier590fee92013-09-13 13:46:47 -0700930bool Runtime::IsShuttingDown(Thread* self) {
931 MutexLock mu(self, *Locks::runtime_shutdown_lock_);
932 return IsShuttingDownLocked();
933}
934
Elliott Hughes85d15452011-09-16 17:33:01 -0700935void Runtime::StartDaemonThreads() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800936 VLOG(startup) << "Runtime::StartDaemonThreads entering";
Elliott Hughes85d15452011-09-16 17:33:01 -0700937
Elliott Hughes719b3232011-09-25 17:42:19 -0700938 Thread* self = Thread::Current();
Brian Carlstromaded5f72011-10-07 17:15:04 -0700939
940 // Must be in the kNative state for calling native methods.
Ian Rogers50b35e22012-10-04 10:09:15 -0700941 CHECK_EQ(self->GetState(), kNative);
Brian Carlstromaded5f72011-10-07 17:15:04 -0700942
Elliott Hughes719b3232011-09-25 17:42:19 -0700943 JNIEnv* env = self->GetJniEnv();
Ian Rogers2fa6b2e2012-10-17 00:10:17 -0700944 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons,
945 WellKnownClasses::java_lang_Daemons_start);
946 if (env->ExceptionCheck()) {
947 env->ExceptionDescribe();
948 LOG(FATAL) << "Error starting java.lang.Daemons";
949 }
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700950
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800951 VLOG(startup) << "Runtime::StartDaemonThreads exiting";
Carl Shapiro61e019d2011-07-14 16:53:09 -0700952}
953
Elliott Hughes0af55432011-08-17 18:37:28 -0700954bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) {
Elliott Hughesc1674ed2011-08-25 18:09:09 -0700955 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700956
Elliott Hughes90a33692011-08-30 13:27:07 -0700957 UniquePtr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized));
958 if (options.get() == NULL) {
Brian Carlstrome24fa612011-09-29 00:53:55 -0700959 LOG(ERROR) << "Failed to parse options";
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700960 return false;
961 }
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800962 VLOG(startup) << "Runtime::Init -verbose:startup enabled";
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700963
Elliott Hughes7c6169d2012-05-02 16:11:48 -0700964 QuasiAtomic::Startup();
965
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800966 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_);
Elliott Hughes32d6e1e2011-10-11 14:47:44 -0700967
Brian Carlstrom58ae9412011-10-04 00:56:06 -0700968 host_prefix_ = options->host_prefix_;
Brian Carlstroma004aa92012-02-08 18:05:09 -0800969 boot_class_path_string_ = options->boot_class_path_string_;
970 class_path_string_ = options->class_path_string_;
Elliott Hughes7ede61e2011-09-14 18:18:06 -0700971 properties_ = options->properties_;
972
Vladimir Marko2b5eaa22013-12-13 13:59:30 +0000973 compiler_callbacks_ = options->compiler_callbacks_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700974 is_zygote_ = options->is_zygote_;
Anwar Ghuloum87183592013-08-14 12:12:19 -0700975 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_;
Elliott Hughes9ca7a1f2011-10-11 14:29:52 -0700976
buzbeea024a062013-07-31 10:47:37 -0700977 compiler_filter_ = options->compiler_filter_;
978 huge_method_threshold_ = options->huge_method_threshold_;
979 large_method_threshold_ = options->large_method_threshold_;
980 small_method_threshold_ = options->small_method_threshold_;
981 tiny_method_threshold_ = options->tiny_method_threshold_;
982 num_dex_methods_threshold_ = options->num_dex_methods_threshold_;
Anwar Ghuloum8447d842013-04-30 17:27:40 -0700983
Dragos Sbirlea7467ee02013-06-21 09:20:34 -0700984 sea_ir_mode_ = options->sea_ir_mode_;
Elliott Hughes0af55432011-08-17 18:37:28 -0700985 vfprintf_ = options->hook_vfprintf_;
986 exit_ = options->hook_exit_;
987 abort_ = options->hook_abort_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700988
Elliott Hughesbe759c62011-09-08 19:38:21 -0700989 default_stack_size_ = options->stack_size_;
Elliott Hughes94ce37a2011-10-18 15:07:48 -0700990 stack_trace_file_ = options->stack_trace_file_;
Brian Carlstrom6ea095a2011-08-16 15:26:54 -0700991
Ian Rogersd9c4fc92013-10-01 19:45:43 -0700992 max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_;
993
Elliott Hughesc33a32b2011-10-11 18:18:07 -0700994 monitor_list_ = new MonitorList;
Ian Rogersef7d42f2014-01-06 12:55:46 -0800995 monitor_pool_ = MonitorPool::Create();
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -0800996 thread_list_ = new ThreadList;
Elliott Hughescf4c6c42011-09-01 15:16:42 -0700997 intern_table_ = new InternTable;
998
Logan Chiendd361c92012-04-10 23:40:37 +0800999
Ian Rogers62d6c772013-02-27 08:32:07 -08001000 if (options->interpreter_only_) {
1001 GetInstrumentation()->ForceInterpretOnly();
1002 }
1003
Ian Rogers1d54e732013-05-02 21:10:01 -07001004 heap_ = new gc::Heap(options->heap_initial_size_,
1005 options->heap_growth_limit_,
1006 options->heap_min_free_,
1007 options->heap_max_free_,
1008 options->heap_target_utilization_,
1009 options->heap_maximum_size_,
1010 options->image_,
Mathieu Chartier0de9f732013-11-22 17:58:48 -08001011 options->collector_type_,
Mathieu Chartiere6da9af2013-12-16 11:54:42 -08001012 options->background_collector_type_,
Mathieu Chartier2775ee42013-08-20 17:43:47 -07001013 options->parallel_gc_threads_,
1014 options->conc_gc_threads_,
1015 options->low_memory_mode_,
1016 options->long_pause_log_threshold_,
1017 options->long_gc_log_threshold_,
Mathieu Chartier692fafd2013-11-29 17:24:40 -08001018 options->ignore_max_footprint_,
Mathieu Chartier938a03b2014-01-16 15:10:31 -08001019 options->use_tlab_,
1020 options->verify_pre_gc_heap_,
1021 options->verify_post_gc_heap_);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -07001022
Hiroshi Yamauchi2e899a92013-11-22 16:50:12 -08001023 dump_gc_performance_on_shutdown_ = options->dump_gc_performance_on_shutdown_;
1024
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001025 BlockSignals();
Elliott Hughes457005c2012-04-16 13:54:25 -07001026 InitPlatformSignalHandlers();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001027
Elliott Hughesa0957642011-09-02 14:27:33 -07001028 java_vm_ = new JavaVMExt(this, options.get());
Elliott Hughes515a5bc2011-08-17 11:08:34 -07001029
Elliott Hughesbe759c62011-09-08 19:38:21 -07001030 Thread::Startup();
Elliott Hughesd92bec42011-09-02 17:04:36 -07001031
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001032 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating
1033 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main
1034 // thread, we do not get a java peer.
1035 Thread* self = Thread::Attach("main", false, NULL, false);
Ian Rogersd9c4fc92013-10-01 19:45:43 -07001036 CHECK_EQ(self->thin_lock_thread_id_, ThreadList::kMainThreadId);
Ian Rogers120f1c72012-09-28 17:17:10 -07001037 CHECK(self != NULL);
Brian Carlstrom6ea095a2011-08-16 15:26:54 -07001038
Brian Carlstromf28bc5b2011-10-26 01:15:03 -07001039 // Set us to runnable so tools using a runtime can allocate and GC by default
Ian Rogers120f1c72012-09-28 17:17:10 -07001040 self->TransitionFromSuspendedToRunnable();
Brian Carlstromf28bc5b2011-10-26 01:15:03 -07001041
Ian Rogersa436fde2013-08-27 23:34:06 -07001042 // Now we're attached, we can take the heap locks and validate the heap.
Ian Rogers141d6222012-04-05 12:23:06 -07001043 GetHeap()->EnableObjectValidation();
1044
Ian Rogers1d54e732013-05-02 21:10:01 -07001045 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U);
Mathieu Chartier590fee92013-09-13 13:46:47 -07001046 class_linker_ = new ClassLinker(intern_table_);
1047 if (GetHeap()->HasImageSpace()) {
1048 class_linker_->InitFromImage();
Brian Carlstroma004aa92012-02-08 18:05:09 -08001049 } else {
1050 CHECK(options->boot_class_path_ != NULL);
1051 CHECK_NE(options->boot_class_path_->size(), 0U);
Mathieu Chartier590fee92013-09-13 13:46:47 -07001052 class_linker_->InitFromCompiler(*options->boot_class_path_);
Brian Carlstroma004aa92012-02-08 18:05:09 -08001053 }
1054 CHECK(class_linker_ != NULL);
Sameer Abu Asal51a5fb72013-02-19 14:25:01 -08001055 verifier::MethodVerifier::Init();
Brian Carlstrom6ea095a2011-08-16 15:26:54 -07001056
jeffhaob5e81852012-03-12 11:15:45 -07001057 method_trace_ = options->method_trace_;
1058 method_trace_file_ = options->method_trace_file_;
1059 method_trace_file_size_ = options->method_trace_file_size_;
1060
Dave Allison0aded082013-11-07 13:15:11 -08001061 // Extract the profile options.
1062 profile_period_s_ = options->profile_period_s_;
1063 profile_duration_s_ = options->profile_duration_s_;
1064 profile_interval_us_ = options->profile_interval_us_;
1065 profile_backoff_coefficient_ = options->profile_backoff_coefficient_;
1066 profile_ = options->profile_;
1067 profile_output_filename_ = options->profile_output_filename_;
1068
jeffhaob5e81852012-03-12 11:15:45 -07001069 if (options->method_trace_) {
Jeff Hao23009dc2013-08-22 15:36:42 -07001070 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0,
1071 false, false, 0);
jeffhaob5e81852012-03-12 11:15:45 -07001072 }
1073
Ian Rogersa436fde2013-08-27 23:34:06 -07001074 // Pre-allocate an OutOfMemoryError for the double-OOME case.
1075 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;",
1076 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available");
1077 pre_allocated_OutOfMemoryError_ = self->GetException(NULL);
1078 self->ClearException();
1079
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -08001080 VLOG(startup) << "Runtime::Init exiting";
Carl Shapiro1fb86202011-06-27 17:43:13 -07001081 return true;
1082}
1083
Elliott Hughes038a8062011-09-18 14:12:41 -07001084void Runtime::InitNativeMethods() {
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -08001085 VLOG(startup) << "Runtime::InitNativeMethods entering";
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001086 Thread* self = Thread::Current();
1087 JNIEnv* env = self->GetJniEnv();
1088
Elliott Hughes418d20f2011-09-22 14:00:39 -07001089 // Must be in the kNative state for calling native methods (JNI_OnLoad code).
Ian Rogers50b35e22012-10-04 10:09:15 -07001090 CHECK_EQ(self->GetState(), kNative);
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001091
Elliott Hughes418d20f2011-09-22 14:00:39 -07001092 // First set up JniConstants, which is used by both the runtime's built-in native
1093 // methods and libcore.
Elliott Hughesfea966e2011-09-22 10:26:20 -07001094 JniConstants::init(env);
Elliott Hugheseac76672012-05-24 21:56:51 -07001095 WellKnownClasses::Init(env);
Elliott Hughesfea966e2011-09-22 10:26:20 -07001096
Elliott Hughes418d20f2011-09-22 14:00:39 -07001097 // Then set up the native methods provided by the runtime itself.
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001098 RegisterRuntimeNativeMethods(env);
1099
Elliott Hughes418d20f2011-09-22 14:00:39 -07001100 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad.
1101 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's
1102 // the library that implements System.loadLibrary!
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001103 {
1104 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore"));
1105 std::string reason;
1106 self->TransitionFromSuspendedToRunnable();
Mathieu Chartier055d46c2014-02-06 11:22:17 -08001107 SirtRef<mirror::ClassLoader> class_loader(self, nullptr);
1108 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, class_loader, &reason)) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001109 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason;
1110 }
1111 self->TransitionFromRunnableToSuspended(kNative);
1112 }
Ian Rogersef28b142012-11-30 14:22:18 -08001113
1114 // Initialize well known classes that may invoke runtime native methods.
1115 WellKnownClasses::LateInit(env);
1116
Elliott Hughes4dd9b4d2011-12-12 18:29:24 -08001117 VLOG(startup) << "Runtime::InitNativeMethods exiting";
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001118}
1119
Ian Rogers365c1022012-06-22 15:05:28 -07001120void Runtime::InitThreadGroups(Thread* self) {
1121 JNIEnvExt* env = self->GetJniEnv();
1122 ScopedJniEnvLocalRefState env_state(env);
1123 main_thread_group_ =
1124 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
1125 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -07001126 CHECK(main_thread_group_ != NULL || IsCompiler());
Ian Rogers365c1022012-06-22 15:05:28 -07001127 system_thread_group_ =
1128 env->NewGlobalRef(env->GetStaticObjectField(WellKnownClasses::java_lang_ThreadGroup,
1129 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup));
Brian Carlstrom034f76b2012-08-01 15:51:58 -07001130 CHECK(system_thread_group_ != NULL || IsCompiler());
1131}
1132
1133jobject Runtime::GetMainThreadGroup() const {
1134 CHECK(main_thread_group_ != NULL || IsCompiler());
1135 return main_thread_group_;
1136}
1137
1138jobject Runtime::GetSystemThreadGroup() const {
1139 CHECK(system_thread_group_ != NULL || IsCompiler());
1140 return system_thread_group_;
Ian Rogers365c1022012-06-22 15:05:28 -07001141}
1142
Brian Carlstromce888532013-10-10 00:32:58 -07001143jobject Runtime::GetSystemClassLoader() const {
1144 CHECK(system_class_loader_ != NULL || IsCompiler());
1145 return system_class_loader_;
1146}
1147
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001148void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) {
1149#define REGISTER(FN) extern void FN(JNIEnv*); FN(env)
Ian Rogers5167c972012-02-03 10:41:20 -08001150 // Register Throwable first so that registration of other native methods can throw exceptions
1151 REGISTER(register_java_lang_Throwable);
Brian Carlstromf91c8c32011-09-21 17:30:34 -07001152 REGISTER(register_dalvik_system_DexFile);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001153 REGISTER(register_dalvik_system_VMDebug);
Elliott Hughes7ede61e2011-09-14 18:18:06 -07001154 REGISTER(register_dalvik_system_VMRuntime);
Elliott Hughes8daa0922011-09-11 13:46:25 -07001155 REGISTER(register_dalvik_system_VMStack);
Elliott Hughes01158d72011-09-19 19:47:10 -07001156 REGISTER(register_dalvik_system_Zygote);
Elliott Hughesd369bb72011-09-12 14:41:14 -07001157 REGISTER(register_java_lang_Class);
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001158 REGISTER(register_java_lang_DexCache);
Elliott Hughesbf86d042011-08-31 17:53:14 -07001159 REGISTER(register_java_lang_Object);
1160 REGISTER(register_java_lang_Runtime);
1161 REGISTER(register_java_lang_String);
1162 REGISTER(register_java_lang_System);
Elliott Hughes8daa0922011-09-11 13:46:25 -07001163 REGISTER(register_java_lang_Thread);
Elliott Hughes64bf5a32011-09-20 14:43:12 -07001164 REGISTER(register_java_lang_VMClassLoader);
Brian Carlstrom5b8e4c82011-09-18 01:38:59 -07001165 REGISTER(register_java_lang_reflect_Array);
Elliott Hughes2a20cfd2011-09-23 19:30:41 -07001166 REGISTER(register_java_lang_reflect_Constructor);
Brian Carlstromf867b6f2011-09-16 12:17:25 -07001167 REGISTER(register_java_lang_reflect_Field);
1168 REGISTER(register_java_lang_reflect_Method);
Jesse Wilson95caa792011-10-12 18:14:17 -04001169 REGISTER(register_java_lang_reflect_Proxy);
Elliott Hughesbf86d042011-08-31 17:53:14 -07001170 REGISTER(register_java_util_concurrent_atomic_AtomicLong);
Brian Carlstrom395520e2011-09-25 19:35:00 -07001171 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer);
Elliott Hughesf6a1e1e2011-10-25 16:28:04 -07001172 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal);
Elliott Hughes5ee7a8b2011-09-13 16:40:07 -07001173 REGISTER(register_sun_misc_Unsafe);
Elliott Hughesad7c2a32011-08-31 11:58:10 -07001174#undef REGISTER
1175}
1176
Elliott Hughesc967f782012-04-16 10:23:15 -07001177void Runtime::DumpForSigQuit(std::ostream& os) {
Elliott Hughescac6cc72011-11-03 20:31:21 -07001178 GetClassLinker()->DumpForSigQuit(os);
1179 GetInternTable()->DumpForSigQuit(os);
Elliott Hughesae80b492012-04-24 10:43:17 -07001180 GetJavaVM()->DumpForSigQuit(os);
Elliott Hughesc967f782012-04-16 10:23:15 -07001181 GetHeap()->DumpForSigQuit(os);
Elliott Hughes42ee1422011-09-06 12:33:32 -07001182 os << "\n";
Elliott Hughes8daa0922011-09-11 13:46:25 -07001183
Elliott Hughesc967f782012-04-16 10:23:15 -07001184 thread_list_->DumpForSigQuit(os);
Ian Rogers56edc432013-01-18 16:51:51 -08001185 BaseMutex::DumpAll(os);
Elliott Hughese27955c2011-08-26 15:21:24 -07001186}
1187
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001188void Runtime::DumpLockHolders(std::ostream& os) {
Ian Rogersb726dcb2012-09-05 08:57:23 -07001189 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid();
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001190 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner();
1191 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner();
1192 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner();
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001193 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) {
1194 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n"
Elliott Hughes21a5bf22011-12-07 14:35:20 -08001195 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n"
1196 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n"
1197 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n";
1198 }
1199}
1200
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001201void Runtime::SetStatsEnabled(bool new_state) {
1202 if (new_state == true) {
1203 GetStats()->Clear(~0);
1204 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1205 Thread::Current()->GetStats()->Clear(~0);
Ian Rogersfa824272013-11-05 16:12:57 -08001206 GetInstrumentation()->InstrumentQuickAllocEntryPoints();
Hiroshi Yamauchi3b4c1892013-09-12 21:33:12 -07001207 } else {
Ian Rogersfa824272013-11-05 16:12:57 -08001208 GetInstrumentation()->UninstrumentQuickAllocEntryPoints();
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001209 }
1210 stats_enabled_ = new_state;
1211}
1212
1213void Runtime::ResetStats(int kinds) {
1214 GetStats()->Clear(kinds & 0xffff);
1215 // TODO: wouldn't it make more sense to clear _all_ threads' stats?
1216 Thread::Current()->GetStats()->Clear(kinds >> 16);
1217}
1218
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001219int32_t Runtime::GetStat(int kind) {
1220 RuntimeStats* stats;
1221 if (kind < (1<<16)) {
1222 stats = GetStats();
1223 } else {
1224 stats = Thread::Current()->GetStats();
1225 kind >>= 16;
1226 }
1227 switch (kind) {
1228 case KIND_ALLOCATED_OBJECTS:
1229 return stats->allocated_objects;
1230 case KIND_ALLOCATED_BYTES:
1231 return stats->allocated_bytes;
1232 case KIND_FREED_OBJECTS:
1233 return stats->freed_objects;
1234 case KIND_FREED_BYTES:
1235 return stats->freed_bytes;
1236 case KIND_GC_INVOCATIONS:
1237 return stats->gc_for_alloc_count;
1238 case KIND_CLASS_INIT_COUNT:
1239 return stats->class_init_count;
1240 case KIND_CLASS_INIT_TIME:
1241 // Convert ns to us, reduce to 32 bits.
Elliott Hughes398f64b2012-03-26 18:05:48 -07001242 return static_cast<int>(stats->class_init_time_ns / 1000);
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001243 case KIND_EXT_ALLOCATED_OBJECTS:
1244 case KIND_EXT_ALLOCATED_BYTES:
1245 case KIND_EXT_FREED_OBJECTS:
1246 case KIND_EXT_FREED_BYTES:
1247 return 0; // backward compatibility
1248 default:
Elliott Hughes7b9d9962012-04-20 18:48:18 -07001249 LOG(FATAL) << "Unknown statistic " << kind;
Brian Carlstrom7934ac22013-07-26 10:54:15 -07001250 return -1; // unreachable
Elliott Hughes9d5ccec2011-09-19 13:19:50 -07001251 }
1252}
1253
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001254void Runtime::BlockSignals() {
Elliott Hughes457005c2012-04-16 13:54:25 -07001255 SignalSet signals;
1256 signals.Add(SIGPIPE);
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001257 // SIGQUIT is used to dump the runtime's state (including stack traces).
Elliott Hughes457005c2012-04-16 13:54:25 -07001258 signals.Add(SIGQUIT);
Elliott Hughes08795042012-04-03 14:48:52 -07001259 // SIGUSR1 is used to initiate a GC.
Elliott Hughes457005c2012-04-16 13:54:25 -07001260 signals.Add(SIGUSR1);
1261 signals.Block();
Elliott Hughesc1674ed2011-08-25 18:09:09 -07001262}
1263
Mathieu Chartier664bebf2012-11-12 16:54:11 -08001264bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group,
1265 bool create_peer) {
1266 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL;
Elliott Hughes22869a92012-03-27 14:08:24 -07001267 if (thread_name == NULL) {
1268 LOG(WARNING) << *Thread::Current() << " attached without supplying a name";
1269 }
Ian Rogers120f1c72012-09-28 17:17:10 -07001270 return success;
Carl Shapiro61e019d2011-07-14 16:53:09 -07001271}
1272
Elliott Hughesd92bec42011-09-02 17:04:36 -07001273void Runtime::DetachCurrentThread() {
Brian Carlstrom4d571432012-05-16 00:21:41 -07001274 Thread* self = Thread::Current();
1275 if (self == NULL) {
1276 LOG(FATAL) << "attempting to detach thread that is not attached";
1277 }
Ian Rogers0399dde2012-06-06 17:09:28 -07001278 if (self->HasManagedStack()) {
Elliott Hughes22869a92012-03-27 14:08:24 -07001279 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code";
1280 }
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001281 thread_list_->Unregister(self);
Carl Shapiro1fb86202011-06-27 17:43:13 -07001282}
1283
Ian Rogersa436fde2013-08-27 23:34:06 -07001284 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const {
1285 if (pre_allocated_OutOfMemoryError_ == NULL) {
1286 LOG(ERROR) << "Failed to return pre-allocated OOME";
1287 }
1288 return pre_allocated_OutOfMemoryError_;
1289}
1290
Ian Rogers1d54e732013-05-02 21:10:01 -07001291void Runtime::VisitConcurrentRoots(RootVisitor* visitor, void* arg, bool only_dirty,
1292 bool clean_dirty) {
Mathieu Chartierc4621982013-09-16 19:43:47 -07001293 intern_table_->VisitRoots(visitor, arg, only_dirty, clean_dirty);
1294 class_linker_->VisitRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001295}
1296
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001297void Runtime::VisitNonThreadRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001298 // Visit the classes held as static in mirror classes.
1299 mirror::ArtField::VisitRoots(visitor, arg);
1300 mirror::ArtMethod::VisitRoots(visitor, arg);
1301 mirror::Class::VisitRoots(visitor, arg);
1302 mirror::StackTraceElement::VisitRoots(visitor, arg);
1303 mirror::String::VisitRoots(visitor, arg);
1304 mirror::Throwable::VisitRoots(visitor, arg);
1305 // Visit all the primitive array types classes.
1306 mirror::PrimitiveArray<uint8_t>::VisitRoots(visitor, arg); // BooleanArray
1307 mirror::PrimitiveArray<int8_t>::VisitRoots(visitor, arg); // ByteArray
1308 mirror::PrimitiveArray<uint16_t>::VisitRoots(visitor, arg); // CharArray
1309 mirror::PrimitiveArray<double>::VisitRoots(visitor, arg); // DoubleArray
1310 mirror::PrimitiveArray<float>::VisitRoots(visitor, arg); // FloatArray
1311 mirror::PrimitiveArray<int32_t>::VisitRoots(visitor, arg); // IntArray
1312 mirror::PrimitiveArray<int64_t>::VisitRoots(visitor, arg); // LongArray
1313 mirror::PrimitiveArray<int16_t>::VisitRoots(visitor, arg); // ShortArray
Brian Carlstrome24fa612011-09-29 00:53:55 -07001314 java_vm_->VisitRoots(visitor, arg);
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001315 if (pre_allocated_OutOfMemoryError_ != nullptr) {
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001316 pre_allocated_OutOfMemoryError_ = down_cast<mirror::Throwable*>(
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001317 visitor(pre_allocated_OutOfMemoryError_, arg));
1318 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr);
Elliott Hughes225f5a12012-06-11 11:23:48 -07001319 }
Mathieu Chartier590fee92013-09-13 13:46:47 -07001320 resolution_method_ = down_cast<mirror::ArtMethod*>(visitor(resolution_method_, arg));
Mathieu Chartier423d2a32013-09-12 17:33:56 -07001321 DCHECK(resolution_method_ != nullptr);
Mathieu Chartier590fee92013-09-13 13:46:47 -07001322 if (HasImtConflictMethod()) {
1323 imt_conflict_method_ = down_cast<mirror::ArtMethod*>(visitor(imt_conflict_method_, arg));
1324 }
1325 if (HasDefaultImt()) {
1326 default_imt_ = down_cast<mirror::ObjectArray<mirror::ArtMethod>*>(visitor(default_imt_, arg));
1327 }
1328
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001329 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Mathieu Chartier590fee92013-09-13 13:46:47 -07001330 if (callee_save_methods_[i] != nullptr) {
1331 callee_save_methods_[i] = down_cast<mirror::ArtMethod*>(
1332 visitor(callee_save_methods_[i], arg));
1333 }
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001334 }
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001335 {
1336 MutexLock mu(Thread::Current(), method_verifiers_lock_);
1337 for (verifier::MethodVerifier* verifier : method_verifiers_) {
1338 verifier->VisitRoots(visitor, arg);
1339 }
1340 }
Brian Carlstrome24fa612011-09-29 00:53:55 -07001341}
1342
Ian Rogers2dd0e2c2013-01-24 12:42:14 -08001343void Runtime::VisitNonConcurrentRoots(RootVisitor* visitor, void* arg) {
Mathieu Chartier858f1c52012-10-17 17:45:55 -07001344 thread_list_->VisitRoots(visitor, arg);
1345 VisitNonThreadRoots(visitor, arg);
1346}
1347
Ian Rogers1d54e732013-05-02 21:10:01 -07001348void Runtime::VisitRoots(RootVisitor* visitor, void* arg, bool only_dirty, bool clean_dirty) {
1349 VisitConcurrentRoots(visitor, arg, only_dirty, clean_dirty);
Mathieu Chartier9ebae1f2012-10-15 17:38:16 -07001350 VisitNonConcurrentRoots(visitor, arg);
1351}
1352
Jeff Hao88474b42013-10-23 16:24:40 -07001353mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) {
1354 Thread* self = Thread::Current();
1355 SirtRef<mirror::ObjectArray<mirror::ArtMethod> > imtable(self, cl->AllocArtMethodArray(self, 64));
1356 mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod();
Mathieu Chartier590fee92013-09-13 13:46:47 -07001357 for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) {
Jeff Hao88474b42013-10-23 16:24:40 -07001358 imtable->Set(i, imt_conflict_method);
1359 }
1360 return imtable.get();
1361}
1362
1363mirror::ArtMethod* Runtime::CreateImtConflictMethod() {
Jeff Hao88474b42013-10-23 16:24:40 -07001364 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -08001365 Runtime* runtime = Runtime::Current();
1366 ClassLinker* class_linker = runtime->GetClassLinker();
1367 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -07001368 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogersef7d42f2014-01-06 12:55:46 -08001369 // TODO: use a special method for imt conflict method saves.
Jeff Hao88474b42013-10-23 16:24:40 -07001370 method->SetDexMethodIndex(DexFile::kDexNoIndex);
1371 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -08001372 if (runtime->IsCompiler()) {
1373 method->SetEntryPointFromPortableCompiledCode(nullptr);
1374 method->SetEntryPointFromQuickCompiledCode(nullptr);
1375 } else {
1376 method->SetEntryPointFromPortableCompiledCode(GetPortableImtConflictTrampoline(class_linker));
1377 method->SetEntryPointFromQuickCompiledCode(GetQuickImtConflictTrampoline(class_linker));
1378 }
Jeff Hao88474b42013-10-23 16:24:40 -07001379 return method.get();
1380}
1381
Brian Carlstromea46f952013-07-30 01:26:50 -07001382mirror::ArtMethod* Runtime::CreateResolutionMethod() {
Ian Rogers50b35e22012-10-04 10:09:15 -07001383 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -08001384 Runtime* runtime = Runtime::Current();
1385 ClassLinker* class_linker = runtime->GetClassLinker();
1386 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -07001387 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers19846512012-02-24 11:42:47 -08001388 // TODO: use a special method for resolution method saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001389 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Jeff Hao58df3272013-04-22 15:28:53 -07001390 // When compiling, the code pointer will get set later when the image is loaded.
Ian Rogersef7d42f2014-01-06 12:55:46 -08001391 if (runtime->IsCompiler()) {
1392 method->SetEntryPointFromPortableCompiledCode(nullptr);
1393 method->SetEntryPointFromQuickCompiledCode(nullptr);
1394 } else {
1395 method->SetEntryPointFromPortableCompiledCode(GetPortableResolutionTrampoline(class_linker));
1396 method->SetEntryPointFromQuickCompiledCode(GetQuickResolutionTrampoline(class_linker));
1397 }
Ian Rogers19846512012-02-24 11:42:47 -08001398 return method.get();
1399}
1400
Brian Carlstromea46f952013-07-30 01:26:50 -07001401mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(InstructionSet instruction_set,
Mathieu Chartier590fee92013-09-13 13:46:47 -07001402 CalleeSaveType type) {
Ian Rogers50b35e22012-10-04 10:09:15 -07001403 Thread* self = Thread::Current();
Ian Rogersef7d42f2014-01-06 12:55:46 -08001404 Runtime* runtime = Runtime::Current();
1405 ClassLinker* class_linker = runtime->GetClassLinker();
1406 SirtRef<mirror::ArtMethod> method(self, class_linker->AllocArtMethod(self));
Mathieu Chartier590fee92013-09-13 13:46:47 -07001407 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod());
Ian Rogers6d4d9fc2011-11-30 16:24:48 -08001408 // TODO: use a special method for callee saves
Ian Rogers8b2c0b92013-09-19 02:56:49 -07001409 method->SetDexMethodIndex(DexFile::kDexNoIndex);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001410 method->SetEntryPointFromPortableCompiledCode(nullptr);
1411 method->SetEntryPointFromQuickCompiledCode(nullptr);
Brian Carlstromae826982011-11-09 01:33:42 -08001412 if ((instruction_set == kThumb2) || (instruction_set == kArm)) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001413 uint32_t ref_spills = (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) |
1414 (1 << art::arm::R8) | (1 << art::arm::R10) | (1 << art::arm::R11);
1415 uint32_t arg_spills = (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3);
1416 uint32_t all_spills = (1 << art::arm::R4) | (1 << art::arm::R9);
jeffhaofa147e22012-10-12 17:03:32 -07001417 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1418 (type == kSaveAll ? all_spills : 0) | (1 << art::arm::LR);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001419 uint32_t fp_all_spills = (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) |
1420 (1 << art::arm::S3) | (1 << art::arm::S4) | (1 << art::arm::S5) |
1421 (1 << art::arm::S6) | (1 << art::arm::S7) | (1 << art::arm::S8) |
1422 (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) |
1423 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) |
1424 (1 << art::arm::S15) | (1 << art::arm::S16) | (1 << art::arm::S17) |
1425 (1 << art::arm::S18) | (1 << art::arm::S19) | (1 << art::arm::S20) |
1426 (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) |
1427 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) |
1428 (1 << art::arm::S27) | (1 << art::arm::S28) | (1 << art::arm::S29) |
1429 (1 << art::arm::S30) | (1 << art::arm::S31);
1430 uint32_t fp_spills = type == kSaveAll ? fp_all_spills : 0;
1431 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1432 __builtin_popcount(fp_spills) /* fprs */ +
1433 1 /* Method* */) * kPointerSize, kStackAlignment);
Ian Rogers15fdb8c2011-09-25 15:45:07 -07001434 method->SetFrameSizeInBytes(frame_size);
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001435 method->SetCoreSpillMask(core_spills);
1436 method->SetFpSpillMask(fp_spills);
jeffhao7fbee072012-08-24 17:56:54 -07001437 } else if (instruction_set == kMips) {
1438 uint32_t ref_spills = (1 << art::mips::S2) | (1 << art::mips::S3) | (1 << art::mips::S4) |
1439 (1 << art::mips::S5) | (1 << art::mips::S6) | (1 << art::mips::S7) |
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001440 (1 << art::mips::GP) | (1 << art::mips::FP);
jeffhao7fbee072012-08-24 17:56:54 -07001441 uint32_t arg_spills = (1 << art::mips::A1) | (1 << art::mips::A2) | (1 << art::mips::A3);
jeffhaofa147e22012-10-12 17:03:32 -07001442 uint32_t all_spills = (1 << art::mips::S0) | (1 << art::mips::S1);
jeffhao7fbee072012-08-24 17:56:54 -07001443 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
jeffhaofa147e22012-10-12 17:03:32 -07001444 (type == kSaveAll ? all_spills : 0) | (1 << art::mips::RA);
jeffhao7fbee072012-08-24 17:56:54 -07001445 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
Jeff Hao1f3bc2f2013-04-30 15:17:19 -07001446 (type == kRefsAndArgs ? 0 : 3) + 1 /* Method* */) *
1447 kPointerSize, kStackAlignment);
jeffhao7fbee072012-08-24 17:56:54 -07001448 method->SetFrameSizeInBytes(frame_size);
1449 method->SetCoreSpillMask(core_spills);
jeffhao07030602012-09-26 14:33:14 -07001450 method->SetFpSpillMask(0);
Brian Carlstromae826982011-11-09 01:33:42 -08001451 } else if (instruction_set == kX86) {
Ian Rogers7caad772012-03-30 01:07:54 -07001452 uint32_t ref_spills = (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
1453 uint32_t arg_spills = (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
1454 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1455 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1456 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1457 1 /* Method* */) * kPointerSize, kStackAlignment);
1458 method->SetFrameSizeInBytes(frame_size);
1459 method->SetCoreSpillMask(core_spills);
Ian Rogersff1ed472011-09-20 13:46:24 -07001460 method->SetFpSpillMask(0);
Ian Rogersef7d42f2014-01-06 12:55:46 -08001461 } else if (instruction_set == kX86_64) {
1462 uint32_t ref_spills =
1463 (1 << art::x86_64::RBP) | (1 << art::x86_64::RSI) | (1 << art::x86_64::RDI) |
1464 (1 << art::x86_64::R8) | (1 << art::x86_64::R9) | (1 << art::x86_64::R10) |
1465 (1 << art::x86_64::R11) | (1 << art::x86_64::R12) | (1 << art::x86_64::R13) |
1466 (1 << art::x86_64::R14) | (1 << art::x86_64::R15);
1467 uint32_t arg_spills =
1468 (1 << art::x86_64::RCX) | (1 << art::x86_64::RDX) | (1 << art::x86_64::RBX);
1469 uint32_t core_spills = ref_spills | (type == kRefsAndArgs ? arg_spills : 0) |
1470 (1 << art::x86::kNumberOfCpuRegisters); // fake return address callee save
1471 size_t frame_size = RoundUp((__builtin_popcount(core_spills) /* gprs */ +
1472 1 /* Method* */) * kPointerSize, kStackAlignment);
1473 method->SetFrameSizeInBytes(frame_size);
1474 method->SetCoreSpillMask(core_spills);
1475 method->SetFpSpillMask(0);
Ian Rogersff1ed472011-09-20 13:46:24 -07001476 } else {
Ian Rogersef7d42f2014-01-06 12:55:46 -08001477 UNIMPLEMENTED(FATAL) << instruction_set;
Ian Rogersff1ed472011-09-20 13:46:24 -07001478 }
Brian Carlstrom40381fb2011-10-19 14:13:40 -07001479 return method.get();
Ian Rogersff1ed472011-09-20 13:46:24 -07001480}
1481
Mathieu Chartierc11d9b82013-09-19 10:01:59 -07001482void Runtime::DisallowNewSystemWeaks() {
1483 monitor_list_->DisallowNewMonitors();
1484 intern_table_->DisallowNewInterns();
1485 java_vm_->DisallowNewWeakGlobals();
1486}
1487
1488void Runtime::AllowNewSystemWeaks() {
1489 monitor_list_->AllowNewMonitors();
1490 intern_table_->AllowNewInterns();
1491 java_vm_->AllowNewWeakGlobals();
1492}
1493
Brian Carlstromea46f952013-07-30 01:26:50 -07001494void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) {
Ian Rogers4f0d07c2011-10-06 23:38:47 -07001495 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType));
Elliott Hughes225f5a12012-06-11 11:23:48 -07001496 callee_save_methods_[type] = method;
Brian Carlstrome24fa612011-09-29 00:53:55 -07001497}
1498
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001499const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001500 if (class_loader == NULL) {
1501 return GetClassLinker()->GetBootClassPath();
1502 }
1503 CHECK(UseCompileTimeClassPath());
1504 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader);
1505 CHECK(it != compile_time_class_paths_.end());
1506 return it->second;
1507}
1508
Ian Rogers00f7d0e2012-07-19 15:28:27 -07001509void Runtime::SetCompileTimeClassPath(jobject class_loader, std::vector<const DexFile*>& class_path) {
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001510 CHECK(!IsStarted());
1511 use_compile_time_class_path_ = true;
Elliott Hughesa0e18062012-04-13 15:59:59 -07001512 compile_time_class_paths_.Put(class_loader, class_path);
Elliott Hughesb3bd5f02012-03-08 21:05:27 -08001513}
1514
Mathieu Chartierc528dba2013-11-26 12:00:11 -08001515void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) {
1516 DCHECK(verifier != nullptr);
1517 MutexLock mu(Thread::Current(), method_verifiers_lock_);
1518 method_verifiers_.insert(verifier);
1519}
1520
1521void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) {
1522 DCHECK(verifier != nullptr);
1523 MutexLock mu(Thread::Current(), method_verifiers_lock_);
1524 auto it = method_verifiers_.find(verifier);
1525 CHECK(it != method_verifiers_.end());
1526 method_verifiers_.erase(it);
1527}
1528
Dave Allison0aded082013-11-07 13:15:11 -08001529void Runtime::StartProfiler(const char *appDir, bool startImmediately) {
1530 BackgroundMethodSamplingProfiler::Start(profile_period_s_, profile_duration_s_, appDir, profile_interval_us_,
1531 profile_backoff_coefficient_, startImmediately);
1532}
Carl Shapiro1fb86202011-06-27 17:43:13 -07001533} // namespace art