diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h index e3e3777f44..92f93cd5f5 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.h @@ -62,6 +62,28 @@ extern int __lll_mutex_unlock_wake (int *__futex) attribute_hidden; : "r0", "r1", "r2", "t", "memory"); \ __result; }) +#define lll_robust_mutex_trylock(futex, id) \ + ({ unsigned char __result; \ + __asm __volatile ("\ + .align 2\n\ + mova 1f,r0\n\ + nop\n\ + mov r15,r1\n\ + mov #-8,r15\n\ + 0: mov.l @%1,r2\n\ + cmp/eq r2,%3\n\ + bf 1f\n\ + mov.l %2,@%1\n\ + 1: mov r1,r15\n\ + mov #-1,%0\n\ + negc %0,%0"\ + : "=r" (__result) \ + : "r" (&(futex)), \ + "r" (id), \ + "r" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "r0", "r1", "r2", "t", "memory"); \ + __result; }) + #define lll_mutex_cond_trylock(futex) \ ({ unsigned char __result; \ __asm __volatile ("\ @@ -102,6 +124,25 @@ extern int __lll_mutex_unlock_wake (int *__futex) attribute_hidden; if (__result) \ __lll_mutex_lock_wait (__result, __futex); }) +#define lll_robust_mutex_lock(futex, id) \ + ({ int __result, val, *__futex = &(futex); \ + __asm __volatile ("\ + .align 2\n\ + mova 1f,r0\n\ + nop\n\ + mov r15,r1\n\ + mov #-8,r15\n\ + 0: mov.l @%2,%0\n\ + tst %0,%0\n\ + bf 1f\n\ + mov.l %1,@%2\n\ + 1: mov r1,r15"\ + : "=&r" (__result) : "r" (id), "r" (__futex) \ + : "r0", "r1", "t", "memory"); \ + if (__result) \ + __result = __lll_robust_mutex_lock_wait (__result, __futex); \ + __result; }) + /* Special version of lll_mutex_lock which causes the unlock function to always wakeup waiters. */ #define lll_mutex_cond_lock(futex) \ @@ -122,6 +163,25 @@ extern int __lll_mutex_unlock_wake (int *__futex) attribute_hidden; if (__result) \ __lll_mutex_lock_wait (__result, __futex); }) +#define lll_robust_mutex_cond_lock(futex, id) \ + ({ int __result, val, *__futex = &(futex); \ + __asm __volatile ("\ + .align 2\n\ + mova 1f,r0\n\ + nop\n\ + mov r15,r1\n\ + mov #-8,r15\n\ + 0: mov.l @%2,%0\n\ + tst %0,%0\n\ + bf 1f\n\ + mov.l %1,@%2\n\ + 1: mov r1,r15"\ + : "=&r" (__result) : "r" (id | FUTEX_WAITERS), "r" (__futex) \ + : "r0", "r1", "t", "memory"); \ + if (__result) \ + __result = __lll_robust_mutex_lock_wait (__result, __futex); \ + __result; }) + #define lll_mutex_timedlock(futex, timeout) \ ({ int __result, val, *__futex = &(futex); \ __asm __volatile ("\ @@ -141,6 +201,26 @@ extern int __lll_mutex_unlock_wake (int *__futex) attribute_hidden; __result = __lll_mutex_timedlock_wait (__result, __futex, timeout); \ __result; }) +#define lll_robust_mutex_timedlock(futex, timeout, id) \ + ({ int __result, val, *__futex = &(futex); \ + __asm __volatile ("\ + .align 2\n\ + mova 1f,r0\n\ + nop\n\ + mov r15,r1\n\ + mov #-8,r15\n\ + 0: mov.l @%2,%0\n\ + tst %0,%0\n\ + bf 1f\n\ + mov.l %1,@%2\n\ + 1: mov r1,r15"\ + : "=&r" (__result) : "r" (id), "r" (__futex) \ + : "r0", "r1", "t", "memory"); \ + if (__result) \ + __result = __lll_robust_mutex_timedlock_wait (__result, __futex, \ + timeout); \ + __result; }) + #define lll_mutex_unlock(futex) \ (void) ({ int __result, *__futex = &(futex); \ __asm __volatile ("\ @@ -157,6 +237,37 @@ extern int __lll_mutex_unlock_wake (int *__futex) attribute_hidden; if (__result) \ __lll_mutex_unlock_wake (__futex); }) +#define lll_robust_mutex_unlock(futex) \ + (void) ({ int __result, *__futex = &(futex); \ + __asm __volatile ("\ + .align 2\n\ + mova 1f,r0\n\ + mov r15,r1\n\ + mov #-6,r15\n\ + 0: mov.l @%1,%0\n\ + and %2,%0\n\ + mov.l %0,@%1\n\ + 1: mov r1,r15"\ + : "=&r" (__result) : "r" (__futex), "r" (FUTEX_TID_MASK) \ + : "r0", "r1", "memory"); \ + if (__result) \ + __lll_mutex_unlock_wake (__futex); }) + +#define lll_robust_mutex_dead(futex) \ + (void) ({ int __ignore, *__futex = &(futex); \ + __asm __volatile ("\ + .align 2\n\ + mova 1f,r0\n\ + mov r15,r1\n\ + mov #-6,r15\n\ + 0: mov.l @%1,%0\n\ + or %2,%0\n\ + mov.l %0,@%1\n\ + 1: mov r1,r15"\ + : "=&r" (__ignore) : "r" (__futex), "r" (FUTEX_OWNER_DIED) \ + : "r0", "r1", "memory"); \ + lll_futex_wake (__futex, 1); }) + #define lll_mutex_islocked(futex) \ (futex != 0) |