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Implement pthread spin.

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In order to run tsan unit tests, we need to support pthread spin APIs.

Bug: 18623621
Bug: 25392375
Change-Id: Icbb4a74e72e467824b3715982a01600031868e29
This commit is contained in:
Yabin Cui
2015-11-17 16:03:18 -08:00
parent b804b9d67b
commit fe3a83a934
12 changed files with 149 additions and 0 deletions
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14
libc/include/pthread.h
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@@ -108,6 +108,14 @@ typedef int pthread_barrierattr_t;
#define PTHREAD_BARRIER_SERIAL_THREAD -1
typedef struct {
#if defined(__LP64__)
int64_t __private;
#else
int32_t __private[2];
#endif
} pthread_spinlock_t;
#if defined(__LP64__)
#define PTHREAD_STACK_MIN (4 * PAGE_SIZE)
#else
@@ -229,6 +237,12 @@ int pthread_barrier_init(pthread_barrier_t*, const pthread_barrierattr_t*, unsig
int pthread_barrier_destroy(pthread_barrier_t*) __nonnull((1));
int pthread_barrier_wait(pthread_barrier_t*) __nonnull((1));
int pthread_spin_destroy(pthread_spinlock_t*) __nonnull((1));
int pthread_spin_init(pthread_spinlock_t*, int) __nonnull((1));
int pthread_spin_lock(pthread_spinlock_t*) __nonnull((1));
int pthread_spin_trylock(pthread_spinlock_t*) __nonnull((1));
int pthread_spin_unlock(pthread_spinlock_t*) __nonnull((1));
pthread_t pthread_self(void) __pure2;
int pthread_setname_np(pthread_t, const char*) __nonnull((2));