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author | Roland McGrath <roland@gnu.org> | 2006-03-01 20:05:53 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2006-03-01 20:05:53 +0000 |
commit | c4a4875d0fe42612280c62130b25d01a8d76fea8 (patch) | |
tree | fe1f0782d1b960f139048340ce354422052f8eb8 /nptl/sysdeps/unix/sysv/linux/sparc | |
parent | 996f5e601e84cfabe27d829e523e07c2ceffdd2e (diff) | |
download | glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.gz glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.xz glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.zip |
* sysdeps/sparc/sparc32/fpu/libm-test-ulps: Update.
* sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Use inline asm to make sure the compiler doesn't optimize insns out.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sparc')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index ad82aa3ea4..77eefc546c 100644 --- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -78,6 +78,15 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) +#define lll_robust_mutex_dead(futexv) \ + do \ + { \ + int *__futexp = &(futexv); \ + atomic_or (__futexp, FUTEX_OWNER_DIED); \ + lll_futex_wake (__futexp, 1); \ + } \ + while (0) + /* Returns non-zero if error happened, zero if success. */ #ifdef __sparc32_atomic_do_lock /* Avoid FUTEX_WAKE_OP if supporting pre-v9 CPUs. */ @@ -112,9 +121,18 @@ __lll_mutex_cond_trylock (int *futex) } #define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) +static inline int +__attribute__ ((always_inline)) +__lll_robust_mutex_trylock (int *futex, int id) +{ + return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0; +} +#define lll_robust_mutex_trylock(futex, id) \ + __lll_robust_mutex_trylock (&(futex), id) + extern void __lll_lock_wait (int *futex) attribute_hidden; - +extern int __lll_robust_lock_wait (int *futex) attribute_hidden; static inline void __attribute__ ((always_inline)) @@ -127,6 +145,17 @@ __lll_mutex_lock (int *futex) } #define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) +static inline int +__attribute__ ((always_inline)) +__lll_robust_mutex_lock (int *futex, int id) +{ + int result = 0; + if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) + result = __lll_robust_lock_wait (futex); + return result; +} +#define lll_robust_mutex_lock(futex, id) \ + __lll_robust_mutex_lock (&(futex), id) static inline void __attribute__ ((always_inline)) @@ -139,10 +168,14 @@ __lll_mutex_cond_lock (int *futex) } #define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) +#define lll_robust_mutex_cond_lock(futex, id) \ + __lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS) + extern int __lll_timedlock_wait (int *futex, const struct timespec *) attribute_hidden; - +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *) + attribute_hidden; static inline int __attribute__ ((always_inline)) @@ -158,6 +191,19 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime) #define lll_mutex_timedlock(futex, abstime) \ __lll_mutex_timedlock (&(futex), abstime) +static inline int +__attribute__ ((always_inline)) +__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime, + int id) +{ + int result = 0; + if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0) + result = __lll_robust_timedlock_wait (futex, abstime); + return result; +} +#define lll_robust_mutex_timedlock(futex, abstime, id) \ + __lll_robust_mutex_timedlock (&(futex), abstime, id) + #define lll_mutex_unlock(lock) \ ((void) ({ \ int *__futex = &(lock); \ @@ -166,6 +212,14 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime) lll_futex_wake (__futex, 1); \ })) +#define lll_robust_mutex_unlock(lock) \ + ((void) ({ \ + int *__futex = &(lock); \ + int __val = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ + lll_futex_wake (__futex, 1); \ + })) + #define lll_mutex_unlock_force(lock) \ ((void) ({ \ int *__futex = &(lock); \ |