diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h | 196 |
1 files changed, 98 insertions, 98 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h index 3295b63f6c..bfd109f080 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -31,107 +31,107 @@ /* Initializer for compatibility lock. */ #define LLL_MUTEX_LOCK_INITIALIZER (0) -#define lll_futex_wait(futexp, val) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), FUTEX_WAIT, (val), 0); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ +#define lll_futex_wait(futexp, val) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, \ + (futexp), FUTEX_WAIT, (val), 0); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ }) -#define lll_futex_timed_wait(futexp, val, timespec) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), FUTEX_WAIT, (val), (timespec)); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ +#define lll_futex_timed_wait(futexp, val, timespec) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, \ + (futexp), FUTEX_WAIT, (val), (timespec)); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ }) -#define lll_futex_wake(futexp, nr) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), FUTEX_WAKE, (nr), 0); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ +#define lll_futex_wake(futexp, nr) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, \ + (futexp), FUTEX_WAKE, (nr), 0); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \ }) #ifdef UP -#define __lll_acq_instr "" -#define __lll_rel_instr "" +# define __lll_acq_instr "" +# define __lll_rel_instr "" #else -#define __lll_acq_instr "isync" -#define __lll_rel_instr "sync" +# define __lll_acq_instr "isync" +# define __lll_rel_instr "sync" #endif /* Set *futex to 1 if it is 0, atomically. Returns the old value */ -#define __lll_trylock(futex) \ - ({ int __val; \ - __asm __volatile ("1: lwarx %0,0,%2\n" \ - " cmpwi 0,%0,0\n" \ - " bne 2f\n" \ - " stwcx. %3,0,%2\n" \ - " bne- 1b\n" \ - "2: " __lll_acq_instr \ - : "=&r" (__val), "=m" (*futex) \ - : "r" (futex), "r" (1), "1" (*futex) \ - : "cr0", "memory"); \ - __val; \ +#define __lll_trylock(futex) \ + ({ int __val; \ + __asm __volatile ("1: lwarx %0,0,%2\n" \ + " cmpwi 0,%0,0\n" \ + " bne 2f\n" \ + " stwcx. %3,0,%2\n" \ + " bne- 1b\n" \ + "2: " __lll_acq_instr \ + : "=&r" (__val), "=m" (*futex) \ + : "r" (futex), "r" (1), "1" (*futex) \ + : "cr0", "memory"); \ + __val; \ }) #define lll_mutex_trylock(lock) __lll_trylock(&(lock)) /* Add inc to *futex atomically and return the old value. */ -#define __lll_add(futex, inc) \ - ({ int __val, __tmp; \ - __asm __volatile ("1: lwarx %0,0,%3\n" \ - " addi %1,%0,%4\n" \ - " stwcx. %1,0,%3\n" \ - " bne- 1b" \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \ - : "r" (futex), "I" (inc), "2" (*futex) \ - : "cr0"); \ - __val; \ +#define __lll_add(futex, inc) \ + ({ int __val, __tmp; \ + __asm __volatile ("1: lwarx %0,0,%3\n" \ + " addi %1,%0,%4\n" \ + " stwcx. %1,0,%3\n" \ + " bne- 1b" \ + : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \ + : "r" (futex), "I" (inc), "2" (*futex) \ + : "cr0"); \ + __val; \ }) extern void __lll_lock_wait (int *futex, int val) attribute_hidden; -#define lll_mutex_lock(lock) \ - (void) ({ \ - int *__futex = &(lock); \ - int __val = __lll_add (__futex, 1); \ - __asm __volatile (__lll_acq_instr ::: "memory"); \ - if (__builtin_expect (__val != 0, 0)) \ - __lll_lock_wait (__futex, __val); \ +#define lll_mutex_lock(lock) \ + (void) ({ \ + int *__futex = &(lock); \ + int __val = __lll_add (__futex, 1); \ + __asm __volatile (__lll_acq_instr ::: "memory"); \ + if (__builtin_expect (__val != 0, 0)) \ + __lll_lock_wait (__futex, __val); \ }) extern int __lll_timedlock_wait (int *futex, int val, const struct timespec *) attribute_hidden; -#define lll_mutex_timedlock(lock, abstime) \ - ({ int *__futex = &(lock); \ - int __val = __lll_add (__futex, 1); \ - __asm __volatile (__lll_acq_instr ::: "memory"); \ - if (__builtin_expect (__val != 0, 0)) \ - __val = __lll_timedlock_wait (__futex, __val, (abstime)); \ - __val; \ +#define lll_mutex_timedlock(lock, abstime) \ + ({ int *__futex = &(lock); \ + int __val = __lll_add (__futex, 1); \ + __asm __volatile (__lll_acq_instr ::: "memory"); \ + if (__builtin_expect (__val != 0, 0)) \ + __val = __lll_timedlock_wait (__futex, __val, (abstime)); \ + __val; \ }) -#define lll_mutex_unlock(lock) \ - (void) ({ \ - int *__futex = &(lock); \ - __asm __volatile (__lll_rel_instr ::: "memory"); \ - int __val = __lll_add (__futex, -1); \ - if (__builtin_expect (__val != 1, 0)) \ - { \ - *__futex = 0; \ - lll_futex_wake (__futex, 1); \ - } \ +#define lll_mutex_unlock(lock) \ + (void) ({ \ + int *__futex = &(lock); \ + __asm __volatile (__lll_rel_instr ::: "memory"); \ + int __val = __lll_add (__futex, -1); \ + if (__builtin_expect (__val != 1, 0)) \ + { \ + *__futex = 0; \ + lll_futex_wake (__futex, 1); \ + } \ }) #define lll_mutex_islocked(futex) \ @@ -164,39 +164,39 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; wakeup when the clone terminates. The memory location contains the thread ID while the clone is running and is reset to zero afterwards. */ -#define lll_wait_tid(tid) \ - do { \ - __typeof (tid) __tid; \ - while ((__tid = (tid)) != 0) \ - lll_futex_wait (&(tid), __tid); \ +#define lll_wait_tid(tid) \ + do { \ + __typeof (tid) __tid; \ + while ((__tid = (tid)) != 0) \ + lll_futex_wait (&(tid), __tid); \ } while (0) extern int __lll_timedwait_tid (int *, const struct timespec *) attribute_hidden; -#define lll_timedwait_tid(tid, abstime) \ - ({ \ - int __res = 0; \ - if ((tid) != 0) \ - __res = __lll_timedwait_tid (&(tid), (abstime)); \ - __res; \ +#define lll_timedwait_tid(tid, abstime) \ + ({ \ + int __res = 0; \ + if ((tid) != 0) \ + __res = __lll_timedwait_tid (&(tid), (abstime)); \ + __res; \ }) /* Decrement *futex if it is > 0, and return the old value */ -#define __lll_dec_if_positive(futex) \ - ({ int __val, __tmp; \ - __asm __volatile ("1: lwarx %0,0,%3\n" \ - " cmpwi 0,%0,0\n" \ - " addi %1,%0,-1\n" \ - " ble 2f\n" \ - " stwcx. %1,0,%3\n" \ - " bne- 1b\n" \ - "2: " __lll_acq_instr \ - : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \ - : "r" (futex), "2" (*futex) \ - : "cr0"); \ - __val; \ +#define __lll_dec_if_positive(futex) \ + ({ int __val, __tmp; \ + __asm __volatile ("1: lwarx %0,0,%3\n" \ + " cmpwi 0,%0,0\n" \ + " addi %1,%0,-1\n" \ + " ble 2f\n" \ + " stwcx. %1,0,%3\n" \ + " bne- 1b\n" \ + "2: " __lll_acq_instr \ + : "=&b" (__val), "=&r" (__tmp), "=m" (*futex) \ + : "r" (futex), "2" (*futex) \ + : "cr0"); \ + __val; \ }) |