diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2003-03-20 10:18:24 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-03-20 10:18:24 +0000 |
| commit | f79466a8e909930237d882da8916bbbb1401edf6 (patch) | |
| tree | 460afefe452e8550b56d9a01d90dc129012dfd27 /sysdeps/ia64/bits | |
| parent | 5132931e18d50a1caf7399aa46dafd0142a7c7ae (diff) | |
Update.
2003-03-20 Ulrich Drepper <drepper@redhat.com>
* include/atomic.h: Define atomic_exchange and
atomic_decrement_if_positive if not already defined. Add some
__builtin_expect.
* sysdeps/i386/i486/bits/atomic.h: Define atomic_exchange.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* sysdeps/ia64/bits/atomic.h: Pretty printing. Define atomic_exchange.
* sysdeps/powerpc/bits/atomic.h: Pretty printing. Define
atomic_exchange, atomic_exchange_and_add, and
atomic_decrement_if_positive
Diffstat (limited to 'sysdeps/ia64/bits')
| -rw-r--r-- | sysdeps/ia64/bits/atomic.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sysdeps/ia64/bits/atomic.h b/sysdeps/ia64/bits/atomic.h index fab23076cd..7c6ebf13ff 100644 --- a/sysdeps/ia64/bits/atomic.h +++ b/sysdeps/ia64/bits/atomic.h @@ -55,7 +55,7 @@ typedef uintmax_t uatomic_max_t; (!__sync_bool_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \ (int) (long) (newval))) -# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ +#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ (!__sync_bool_compare_and_swap_di ((long *) (mem), (long) (oldval), \ (long) (newval))) @@ -63,11 +63,15 @@ typedef uintmax_t uatomic_max_t; __sync_val_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \ (int) (long) (newval)) -# define __arch_compare_and_exchange_64_val_acq(mem, newval, oldval) \ +#define __arch_compare_and_exchange_64_val_acq(mem, newval, oldval) \ __sync_val_compare_and_swap_di ((long *) (mem), (long) (oldval), \ (long) (newval)) -# define atomic_exchange_and_add(mem, value) \ +/* Atomically store newval and return the old value. */ +#define atomic_exchange(mem, value) \ + __sync_lock_test_and_set_si (mem, value) + +#define atomic_exchange_and_add(mem, value) \ ({ \ __typeof (*mem) __oldval, __val; \ __typeof (mem) __memp = (mem); \ |