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Issue 131363008: A64: Synchronize with r15922. (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/a64
Patch Set: Created 6 years, 10 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 63 matching lines...) Expand 10 before | Expand all | Expand 10 after
74 return x < 0; 74 return x < 0;
75 } 75 }
76 } 76 }
77 } // namespace std 77 } // namespace std
78 #endif // signbit 78 #endif // signbit
79 79
80 namespace v8 { 80 namespace v8 {
81 namespace internal { 81 namespace internal {
82 82
83 83
84 // 0 is never a valid thread id on Solaris since the main thread is 1 and
85 // subsequent have their ids incremented from there
86 static const pthread_t kNoThread = (pthread_t) 0;
87
88
89 double ceiling(double x) {
90 return ceil(x);
91 }
92
93
94 static Mutex* limit_mutex = NULL; 84 static Mutex* limit_mutex = NULL;
95 85
96 86
97 void OS::PostSetUp() {
98 POSIXPostSetUp();
99 }
100
101
102 uint64_t OS::CpuFeaturesImpliedByPlatform() {
103 return 0; // Solaris runs on a lot of things.
104 }
105
106
107 int OS::ActivationFrameAlignment() {
108 // GCC generates code that requires 16 byte alignment such as movdqa.
109 return Max(STACK_ALIGN, 16);
110 }
111
112
113 const char* OS::LocalTimezone(double time) { 87 const char* OS::LocalTimezone(double time) {
114 if (std::isnan(time)) return ""; 88 if (std::isnan(time)) return "";
115 time_t tv = static_cast<time_t>(floor(time/msPerSecond)); 89 time_t tv = static_cast<time_t>(floor(time/msPerSecond));
116 struct tm* t = localtime(&tv); 90 struct tm* t = localtime(&tv);
117 if (NULL == t) return ""; 91 if (NULL == t) return "";
118 return tzname[0]; // The location of the timezone string on Solaris. 92 return tzname[0]; // The location of the timezone string on Solaris.
119 } 93 }
120 94
121 95
122 double OS::LocalTimeOffset() { 96 double OS::LocalTimeOffset() {
(...skipping 20 matching lines...) Expand all
143 Max(highest_ever_allocated, 117 Max(highest_ever_allocated,
144 reinterpret_cast<void*>(reinterpret_cast<char*>(address) + size)); 118 reinterpret_cast<void*>(reinterpret_cast<char*>(address) + size));
145 } 119 }
146 120
147 121
148 bool OS::IsOutsideAllocatedSpace(void* address) { 122 bool OS::IsOutsideAllocatedSpace(void* address) {
149 return address < lowest_ever_allocated || address >= highest_ever_allocated; 123 return address < lowest_ever_allocated || address >= highest_ever_allocated;
150 } 124 }
151 125
152 126
153 size_t OS::AllocateAlignment() {
154 return static_cast<size_t>(getpagesize());
155 }
156
157
158 void* OS::Allocate(const size_t requested, 127 void* OS::Allocate(const size_t requested,
159 size_t* allocated, 128 size_t* allocated,
160 bool is_executable) { 129 bool is_executable) {
161 const size_t msize = RoundUp(requested, getpagesize()); 130 const size_t msize = RoundUp(requested, getpagesize());
162 int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0); 131 int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
163 void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0); 132 void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0);
164 133
165 if (mbase == MAP_FAILED) { 134 if (mbase == MAP_FAILED) {
166 LOG(ISOLATE, StringEvent("OS::Allocate", "mmap failed")); 135 LOG(ISOLATE, StringEvent("OS::Allocate", "mmap failed"));
167 return NULL; 136 return NULL;
168 } 137 }
169 *allocated = msize; 138 *allocated = msize;
170 UpdateAllocatedSpaceLimits(mbase, msize); 139 UpdateAllocatedSpaceLimits(mbase, msize);
171 return mbase; 140 return mbase;
172 } 141 }
173 142
174 143
175 void OS::Free(void* address, const size_t size) {
176 // TODO(1240712): munmap has a return value which is ignored here.
177 int result = munmap(address, size);
178 USE(result);
179 ASSERT(result == 0);
180 }
181
182
183 void OS::Sleep(int milliseconds) {
184 useconds_t ms = static_cast<useconds_t>(milliseconds);
185 usleep(1000 * ms);
186 }
187
188
189 int OS::NumberOfCores() {
190 return sysconf(_SC_NPROCESSORS_ONLN);
191 }
192
193
194 void OS::Abort() {
195 // Redirect to std abort to signal abnormal program termination.
196 abort();
197 }
198
199
200 void OS::DebugBreak() {
201 asm("int $3");
202 }
203
204
205 void OS::DumpBacktrace() { 144 void OS::DumpBacktrace() {
206 // Currently unsupported. 145 // Currently unsupported.
207 } 146 }
208 147
209 148
210 class PosixMemoryMappedFile : public OS::MemoryMappedFile { 149 class PosixMemoryMappedFile : public OS::MemoryMappedFile {
211 public: 150 public:
212 PosixMemoryMappedFile(FILE* file, void* memory, int size) 151 PosixMemoryMappedFile(FILE* file, void* memory, int size)
213 : file_(file), memory_(memory), size_(size) { } 152 : file_(file), memory_(memory), size_(size) { }
214 virtual ~PosixMemoryMappedFile(); 153 virtual ~PosixMemoryMappedFile();
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447 return munmap(base, size) == 0; 386 return munmap(base, size) == 0;
448 } 387 }
449 388
450 389
451 bool VirtualMemory::HasLazyCommits() { 390 bool VirtualMemory::HasLazyCommits() {
452 // TODO(alph): implement for the platform. 391 // TODO(alph): implement for the platform.
453 return false; 392 return false;
454 } 393 }
455 394
456 395
457 class Thread::PlatformData : public Malloced {
458 public:
459 PlatformData() : thread_(kNoThread) { }
460
461 pthread_t thread_; // Thread handle for pthread.
462 };
463
464
465 Thread::Thread(const Options& options)
466 : data_(new PlatformData()),
467 stack_size_(options.stack_size()),
468 start_semaphore_(NULL) {
469 set_name(options.name());
470 }
471
472
473 Thread::~Thread() {
474 delete data_;
475 }
476
477
478 static void* ThreadEntry(void* arg) {
479 Thread* thread = reinterpret_cast<Thread*>(arg);
480 // This is also initialized by the first argument to pthread_create() but we
481 // don't know which thread will run first (the original thread or the new
482 // one) so we initialize it here too.
483 thread->data()->thread_ = pthread_self();
484 ASSERT(thread->data()->thread_ != kNoThread);
485 thread->NotifyStartedAndRun();
486 return NULL;
487 }
488
489
490 void Thread::set_name(const char* name) {
491 strncpy(name_, name, sizeof(name_));
492 name_[sizeof(name_) - 1] = '\0';
493 }
494
495
496 void Thread::Start() {
497 pthread_attr_t attr;
498 if (stack_size_ > 0) {
499 pthread_attr_init(&attr);
500 pthread_attr_setstacksize(&attr, static_cast<size_t>(stack_size_));
501 }
502 pthread_create(&data_->thread_, NULL, ThreadEntry, this);
503 ASSERT(data_->thread_ != kNoThread);
504 }
505
506
507 void Thread::Join() {
508 pthread_join(data_->thread_, NULL);
509 }
510
511
512 Thread::LocalStorageKey Thread::CreateThreadLocalKey() {
513 pthread_key_t key;
514 int result = pthread_key_create(&key, NULL);
515 USE(result);
516 ASSERT(result == 0);
517 return static_cast<LocalStorageKey>(key);
518 }
519
520
521 void Thread::DeleteThreadLocalKey(LocalStorageKey key) {
522 pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
523 int result = pthread_key_delete(pthread_key);
524 USE(result);
525 ASSERT(result == 0);
526 }
527
528
529 void* Thread::GetThreadLocal(LocalStorageKey key) {
530 pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
531 return pthread_getspecific(pthread_key);
532 }
533
534
535 void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
536 pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
537 pthread_setspecific(pthread_key, value);
538 }
539
540
541 class SolarisSemaphore : public Semaphore { 396 class SolarisSemaphore : public Semaphore {
542 public: 397 public:
543 explicit SolarisSemaphore(int count) { sem_init(&sem_, 0, count); } 398 explicit SolarisSemaphore(int count) { sem_init(&sem_, 0, count); }
544 virtual ~SolarisSemaphore() { sem_destroy(&sem_); } 399 virtual ~SolarisSemaphore() { sem_destroy(&sem_); }
545 400
546 virtual void Wait(); 401 virtual void Wait();
547 virtual bool Wait(int timeout); 402 virtual bool Wait(int timeout);
548 virtual void Signal() { sem_post(&sem_); } 403 virtual void Signal() { sem_post(&sem_); }
549 private: 404 private:
550 sem_t sem_; 405 sem_t sem_;
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627 limit_mutex = CreateMutex(); 482 limit_mutex = CreateMutex();
628 } 483 }
629 484
630 485
631 void OS::TearDown() { 486 void OS::TearDown() {
632 delete limit_mutex; 487 delete limit_mutex;
633 } 488 }
634 489
635 490
636 } } // namespace v8::internal 491 } } // namespace v8::internal
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