diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h | 105 |
1 files changed, 39 insertions, 66 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h index 081d790244..ab795348ee 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -45,40 +45,55 @@ #define LLL_PRIVATE 0 #define LLL_SHARED FUTEX_PRIVATE_FLAG +#if !defined NOT_IN_libc || defined IS_IN_rtld +/* In libc.so or ld.so all futexes are private. */ +# ifdef __ASSUME_PRIVATE_FUTEX +# define __lll_private_flag(fl, private) \ + ((fl) | FUTEX_PRIVATE_FLAG) +# else +# define __lll_private_flag(fl, private) \ + ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) +# endif +#else +# ifdef __ASSUME_PRIVATE_FUTEX +# define __lll_private_flag(fl, private) \ + (((fl) | FUTEX_PRIVATE_FLAG) ^ (private)) +# else +# define __lll_private_flag(fl, private) \ + (__builtin_constant_p (private) \ + ? ((private) == 0 \ + ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) \ + : (fl)) \ + : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG) \ + & THREAD_GETMEM (THREAD_SELF, header.private_futex)))) +# endif +#endif /* Initializer for compatibility lock. */ #define LLL_MUTEX_LOCK_INITIALIZER (0) #define lll_futex_wait(futexp, val, private) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int opt_flags = (FUTEX_WAIT | LLL_SHARED) ^ private; \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), opt_flags, (val), 0); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ - }) + lll_futex_timed_wait (futexp, val, NULL, private) #define lll_futex_timed_wait(futexp, val, timespec, private) \ ({ \ INTERNAL_SYSCALL_DECL (__err); \ - long int opt_flags = (FUTEX_WAIT | LLL_SHARED) ^ private; \ long int __ret; \ \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), opt_flags, (val), (timespec)); \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \ + __lll_private_flag (FUTEX_WAIT, private), \ + (val), (timespec)); \ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ }) #define lll_futex_wake(futexp, nr, private) \ ({ \ INTERNAL_SYSCALL_DECL (__err); \ - long int opt_flags = (FUTEX_WAKE | LLL_SHARED) ^ private; \ long int __ret; \ \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), opt_flags, (nr), 0); \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \ + __lll_private_flag (FUTEX_WAKE, private), \ + (nr), 0); \ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ }) @@ -109,66 +124,24 @@ #define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \ ({ \ INTERNAL_SYSCALL_DECL (__err); \ - long int opt_flags = (FUTEX_WAKE_OP | LLL_SHARED) ^ private; \ - long int opt_flag2 = (FUTEX_OP_CLEAR_WAKE_IF_GT_ONE | LLL_SHARED) \ - ^ private; \ long int __ret; \ \ - __ret = INTERNAL_SYSCALL (futex, __err, 6, \ - (futexp), opt_flags, (nr_wake), \ - (nr_wake2), (futexp2), \ - opt_flag2); \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (FUTEX_WAKE_OP, private), \ + (nr_wake), (nr_wake2), (futexp2), \ + FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) #define lll_private_futex_wait(futexp, val) \ - lll_private_futex_timed_wait (futexp, val, NULL) - - -#ifdef __ASSUME_PRIVATE_FUTEX -# define lll_private_futex_timed_wait(futexp, val, timeout) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), (FUTEX_WAIT | FUTEX_PRIVATE_FLAG), \ - (val), (timeout)); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ - }) + lll_futex_timed_wait (futexp, val, NULL, LLL_PRIVATE) -# define lll_private_futex_wake(futexp, val) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), (FUTEX_WAKE | FUTEX_PRIVATE_FLAG), \ - (val), 0); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ - }) -#else -# define lll_private_futex_timed_wait(futexp, val, timeout) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), FUTEX_WAIT, (val), (timeout)); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ - }) +#define lll_private_futex_timed_wait(futexp, val, timeout) \ + lll_futex_timed_wait (futexp, val, timeout, LLL_PRIVATE) -# define lll_private_futex_wake(futexp, val) \ - ({ \ - INTERNAL_SYSCALL_DECL (__err); \ - long int __ret; \ - \ - __ret = INTERNAL_SYSCALL (futex, __err, 4, \ - (futexp), FUTEX_WAKE, (val), 0); \ - INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ - }) -#endif +#define lll_private_futex_wake(futexp, val) \ + lll_futex_wake (futexp, val, LLL_PRIVATE) #ifdef UP # define __lll_acq_instr "" |