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-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h103
-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c32
2 files changed, 61 insertions, 74 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
index cf91f21483..41804d1372 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -69,9 +69,6 @@
# endif
#endif
-/* Initializer for compatibility lock. */
-#define LLL_MUTEX_LOCK_INITIALIZER (0)
-
#define lll_futex_wait(futexp, val, private) \
lll_futex_timed_wait (futexp, val, NULL, private)
@@ -97,14 +94,15 @@
INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
})
-#define lll_robust_mutex_dead(futexv) \
+#define lll_robust_dead(futexv, private) \
do \
{ \
INTERNAL_SYSCALL_DECL (__err); \
int *__futexp = &(futexv); \
\
atomic_or (__futexp, FUTEX_OWNER_DIED); \
- INTERNAL_SYSCALL (futex, __err, 4, __futexp, FUTEX_WAKE, 1, 0); \
+ INTERNAL_SYSCALL (futex, __err, 4, __futexp, \
+ __lll_private_flag (FUTEX_WAKE, private), 1, 0); \
} \
while (0)
@@ -171,119 +169,111 @@
__val; \
})
-#define lll_robust_mutex_trylock(lock, id) __lll_robust_trylock (&(lock), id)
+#define lll_robust_trylock(lock, id) __lll_robust_trylock (&(lock), id)
/* Set *futex to 1 if it is 0, atomically. Returns the old value */
#define __lll_trylock(futex) __lll_robust_trylock (futex, 1)
-#define lll_mutex_trylock(lock) __lll_trylock (&(lock))
+#define lll_trylock(lock) __lll_trylock (&(lock))
/* Set *futex to 2 if it is 0, atomically. Returns the old value */
#define __lll_cond_trylock(futex) __lll_robust_trylock (futex, 2)
-#define lll_mutex_cond_trylock(lock) __lll_cond_trylock (&(lock))
+#define lll_cond_trylock(lock) __lll_cond_trylock (&(lock))
-extern void __lll_lock_wait (int *futex) attribute_hidden;
-extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
+extern void __lll_lock_wait_private (int *futex) attribute_hidden;
+extern void __lll_lock_wait (int *futex, int private) attribute_hidden;
+extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden;
-#define lll_mutex_lock(lock) \
+#define lll_lock(lock, private) \
(void) ({ \
int *__futex = &(lock); \
if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\
0) != 0) \
- __lll_lock_wait (__futex); \
+ { \
+ if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \
+ __lll_lock_wait_private (__futex); \
+ else \
+ __lll_lock_wait (__futex, private); \
+ } \
})
-#define lll_robust_mutex_lock(lock, id) \
+#define lll_robust_lock(lock, id, private) \
({ \
int *__futex = &(lock); \
int __val = 0; \
if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \
0), 0)) \
- __val = __lll_robust_lock_wait (__futex); \
+ __val = __lll_robust_lock_wait (__futex, private); \
__val; \
})
-#define lll_mutex_cond_lock(lock) \
+#define lll_cond_lock(lock, private) \
(void) ({ \
int *__futex = &(lock); \
if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 2, 0),\
0) != 0) \
- __lll_lock_wait (__futex); \
+ __lll_lock_wait (__futex, private); \
})
-#define lll_robust_mutex_cond_lock(lock, id) \
+#define lll_robust_cond_lock(lock, id, private) \
({ \
int *__futex = &(lock); \
int __val = 0; \
int __id = id | FUTEX_WAITERS; \
if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, __id,\
0), 0)) \
- __val = __lll_robust_lock_wait (__futex); \
+ __val = __lll_robust_lock_wait (__futex, private); \
__val; \
})
extern int __lll_timedlock_wait
- (int *futex, const struct timespec *) attribute_hidden;
+ (int *futex, const struct timespec *, int private) attribute_hidden;
extern int __lll_robust_timedlock_wait
- (int *futex, const struct timespec *) attribute_hidden;
+ (int *futex, const struct timespec *, int private) attribute_hidden;
-#define lll_mutex_timedlock(lock, abstime) \
+#define lll_timedlock(lock, abstime, private) \
({ \
int *__futex = &(lock); \
int __val = 0; \
if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\
0) != 0) \
- __val = __lll_timedlock_wait (__futex, abstime); \
+ __val = __lll_timedlock_wait (__futex, abstime, private); \
__val; \
})
-#define lll_robust_mutex_timedlock(lock, abstime, id) \
+#define lll_robust_timedlock(lock, abstime, id, private) \
({ \
int *__futex = &(lock); \
int __val = 0; \
if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \
0), 0)) \
- __val = __lll_robust_timedlock_wait (__futex, abstime); \
+ __val = __lll_robust_timedlock_wait (__futex, abstime, private); \
__val; \
})
-#define lll_mutex_unlock(lock) \
+#define lll_unlock(lock, private) \
((void) ({ \
int *__futex = &(lock); \
int __val = atomic_exchange_rel (__futex, 0); \
if (__builtin_expect (__val > 1, 0)) \
- lll_futex_wake (__futex, 1, LLL_SHARED); \
+ lll_futex_wake (__futex, 1, private); \
}))
-#define lll_robust_mutex_unlock(lock) \
+#define lll_robust_unlock(lock, private) \
((void) ({ \
int *__futex = &(lock); \
int __val = atomic_exchange_rel (__futex, 0); \
if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \
- lll_futex_wake (__futex, 1, LLL_SHARED); \
- }))
-
-#define lll_mutex_unlock_force(lock) \
- ((void) ({ \
- int *__futex = &(lock); \
- *__futex = 0; \
- __asm __volatile (__lll_rel_instr ::: "memory"); \
- lll_futex_wake (__futex, 1, LLL_SHARED); \
+ lll_futex_wake (__futex, 1, private); \
}))
-#define lll_mutex_islocked(futex) \
+#define lll_islocked(futex) \
(futex != 0)
-/* Our internal lock implementation is identical to the binary-compatible
- mutex implementation. */
-
-/* Type for lock object. */
-typedef int lll_lock_t;
-
/* Initializers for lock. */
#define LLL_LOCK_INITIALIZER (0)
#define LLL_LOCK_INITIALIZER_LOCKED (1)
@@ -293,11 +283,6 @@ typedef int lll_lock_t;
1 - taken by one user
>1 - taken by more users */
-#define lll_trylock(lock) lll_mutex_trylock (lock)
-#define lll_lock(lock) lll_mutex_lock (lock)
-#define lll_unlock(lock) lll_mutex_unlock (lock)
-#define lll_islocked(lock) lll_mutex_islocked (lock)
-
/* The kernel notifies a process which uses CLONE_CLEARTID via futex
wakeup when the clone terminates. The memory location contains the
thread ID while the clone is running and is reset to zero
@@ -320,26 +305,4 @@ extern int __lll_timedwait_tid (int *, const struct timespec *)
__res; \
})
-
-/* Conditional variable handling. */
-
-extern void __lll_cond_wait (pthread_cond_t *cond)
- attribute_hidden;
-extern int __lll_cond_timedwait (pthread_cond_t *cond,
- const struct timespec *abstime)
- attribute_hidden;
-extern void __lll_cond_wake (pthread_cond_t *cond)
- attribute_hidden;
-extern void __lll_cond_broadcast (pthread_cond_t *cond)
- attribute_hidden;
-
-#define lll_cond_wait(cond) \
- __lll_cond_wait (cond)
-#define lll_cond_timedwait(cond, abstime) \
- __lll_cond_timedwait (cond, abstime)
-#define lll_cond_wake(cond) \
- __lll_cond_wake (cond)
-#define lll_cond_broadcast(cond) \
- __lll_cond_broadcast (cond)
-
#endif /* lowlevellock.h */
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
index 0b18cdbcde..fd92f7b32d 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
@@ -29,11 +29,37 @@
int
__new_sem_post (sem_t *sem)
{
+ struct new_sem *isem = (struct new_sem *) sem;
+
+ __asm __volatile (__lll_rel_instr ::: "memory");
+ atomic_increment (&isem->value);
+ __asm __volatile (__lll_acq_instr ::: "memory");
+ if (isem->nwaiters > 0)
+ {
+ int err = lll_futex_wake (&isem->value, 1,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+ if (__builtin_expect (err, 0) < 0)
+ {
+ __set_errno (-err);
+ return -1;
+ }
+ }
+ return 0;
+}
+versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
+
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+
+int
+attribute_compat_text_section
+__old_sem_post (sem_t *sem)
+{
int *futex = (int *) sem;
__asm __volatile (__lll_rel_instr ::: "memory");
int nr = atomic_increment_val (futex);
- int err = lll_futex_wake (futex, nr, LLL_SHARED);
+ /* We always have to assume it is a shared semaphore. */
+ int err = lll_futex_wake (futex, 1, LLL_SHARED);
if (__builtin_expect (err, 0) < 0)
{
__set_errno (-err);
@@ -41,8 +67,6 @@ __new_sem_post (sem_t *sem)
}
return 0;
}
-versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_post, __old_sem_post)
+
compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-14 02:18:09 +0000