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hppa: Update lowlevellock.h.

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Cleanup and remove old lll_private_futex_wake macro and add
generic support for PI-aware futexes.
This commit is contained in:
Carlos O'Donell 2014-04-29 02:48:16 -04:00
parent 810789aed0
commit 4e4a58f4ee
2 changed files with 39 additions and 22 deletions
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9
ports/ChangeLog.hppa
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@ -1,5 +1,14 @@
2014-04-29 Carlos O'Donell <carlos@systemhalted.org>
* sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h
(FUTEX_WAIT_REQUEUE_PI): Define.
(FUTEX_CMP_REQUEUE_PI): Define.
[__ASSUME_PRIVATE_FUTEX] (lll_private_futex_wake): Remove.
[!__ASSUME_PRIVATE_FUTEX] (lll_private_futex_wake): Remove.
(lll_futex_wait_requeue_pi): New macro.
(lll_futex_timed_wait_requeue_pi): New macro.
(lll_futex_cmp_requeue_pi): New macro.
* sysdeps/hppa/nptl/tls.h (THREAD_GSCOPE_RESET_FLAG): Use
lll_futex_wake.

52
ports/sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h
View File

@ -42,6 +42,8 @@
#define FUTEX_TRYLOCK_PI 8
#define FUTEX_WAIT_BITSET 9
#define FUTEX_WAKE_BITSET 10
#define FUTEX_WAIT_REQUEUE_PI 11
#define FUTEX_CMP_REQUEUE_PI 12
#define FUTEX_PRIVATE_FLAG 128
#define FUTEX_CLOCK_REALTIME 256
@ -119,19 +121,7 @@ typedef int lll_lock_t;
(val), (timespec)); \
__ret; \
})
# define lll_private_futex_wake(futexp, nr) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAKE | FUTEX_PRIVATE_FLAG, \
(nr), 0); \
__ret; \
})
#else
# define lll_private_futex_timed_wait(futexp, val, timespec) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
@ -141,16 +131,6 @@ typedef int lll_lock_t;
(futexp), __op, (val), (timespec)); \
__ret; \
})
# define lll_private_futex_wake(futexp, nr) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret, __op; \
__op = FUTEX_WAKE | THREAD_GETMEM (THREAD_SELF, header.private_futex); \
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), __op, (nr), 0); \
__ret; \
})
#endif
/* Returns non-zero if error happened, zero if success. */
@ -185,6 +165,34 @@ typedef int lll_lock_t;
__ret; \
})
/* Priority Inheritance support. */
#define lll_futex_wait_requeue_pi(futexp, val, mutex, private) \
lll_futex_timed_wait_requeue_pi (futexp, val, NULL, 0, mutex, private)
#define lll_futex_timed_wait_requeue_pi(futexp, val, timespec, clockbit, \
mutex, private) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
int __op = FUTEX_WAIT_REQUEUE_PI | clockbit; \
\
__ret = INTERNAL_SYSCALL (futex, __err, 5, (futexp), \
__lll_private_flag (__op, private), \
(val), (timespec), mutex); \
INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
})
#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv) \
({ \
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
\
__ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
__lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv),\
(nr_wake), (nr_move), (mutex), (val)); \
INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
})
static inline int
__attribute__ ((always_inline))
__lll_robust_trylock (int *futex, int id)