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| author | Ulrich Drepper <drepper@redhat.com> | 2003-03-21 08:03:25 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-03-21 08:03:25 +0000 |
| commit | 5a3ab2fc180056cb14eaeae0f571421be81e371b (patch) | |
| tree | af48122e19c238a39db145412a11b1b551d472e6 /sysdeps/i386/i486 | |
| parent | 18627f615b80b51778a65cf588f2741ad5f9b0a7 (diff) | |
| download | glibc-5a3ab2fc180056cb14eaeae0f571421be81e371b.tar.gz glibc-5a3ab2fc180056cb14eaeae0f571421be81e371b.tar.xz glibc-5a3ab2fc180056cb14eaeae0f571421be81e371b.zip | |
Update.
2003-03-21 Ulrich Drepper <drepper@redhat.com> * cancellation.c: Adjust for new form of compare&exchange macros. * cleanup_defer.c: Likewise. * init.c: Likewise. * libc-cancellation.c: Likewise. * old_pthread_cond_broadcast.c: Likewise. * old_pthread_cond_signal.c: Likewise. * old_pthread_cond_timedwait.c: Likewise. * old_pthread_cond_wait.c: Likewise. * pthread_cancel.c: Likewise. * pthread_create.c: Likewise. * pthread_detach.c: Likewise. * pthread_join.c: Likewise. * pthread_key_delete.c: Likewise. * pthread_setcancelstate.c: Likewise. * pthread_setcanceltype.c: Likewise. * pthread_timedjoin.c: Likewise. * pthread_tryjoin.c: Likewise. * sysdeps/pthread/createthread.c: Likewise.
Diffstat (limited to 'sysdeps/i386/i486')
| -rw-r--r-- | sysdeps/i386/i486/bits/atomic.h | 49 |
1 files changed, 23 insertions, 26 deletions
diff --git a/sysdeps/i386/i486/bits/atomic.h b/sysdeps/i386/i486/bits/atomic.h index e22e560a38..2255e19f8e 100644 --- a/sysdeps/i386/i486/bits/atomic.h +++ b/sysdeps/i386/i486/bits/atomic.h @@ -55,23 +55,23 @@ typedef uintmax_t uatomic_max_t; #endif -#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \ - ({ unsigned char ret; \ - __asm __volatile (LOCK "cmpxchgb %b2, %1; setne %0" \ +#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \ + ({ __typeof (*mem) ret; \ + __asm __volatile (LOCK "cmpxchgb %b2, %1" \ : "=a" (ret), "=m" (*mem) \ : "q" (newval), "1" (*mem), "0" (oldval)); \ ret; }) -#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \ - ({ unsigned char ret; \ - __asm __volatile (LOCK "cmpxchgw %w2, %1; setne %0" \ +#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \ + ({ __typeof (*mem) ret; \ + __asm __volatile (LOCK "cmpxchgw %w2, %1" \ : "=a" (ret), "=m" (*mem) \ : "r" (newval), "1" (*mem), "0" (oldval)); \ ret; }) -#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \ - ({ unsigned char ret; \ - __asm __volatile (LOCK "cmpxchgl %2, %1; setne %0" \ +#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ + ({ __typeof (*mem) ret; \ + __asm __volatile (LOCK "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (*mem) \ : "r" (newval), "1" (*mem), "0" (oldval)); \ ret; }) @@ -83,37 +83,34 @@ typedef uintmax_t uatomic_max_t; really going to be used the code below can be used on Intel Pentium and later, but NOT on i486. */ #if 1 -# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ +# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ (abort (), 0) #else # ifdef __PIC__ -# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ - ({ unsigned char ret; \ - int ignore; \ - __asm __volatile ("xchgl %3, %%ebx\n\t" \ - LOCK "cmpxchg8b %2, %1\n\t" \ - "setne %0\n\t" \ - "xchgl %3, %%ebx" \ - : "=a" (ret), "=m" (*mem), "=d" (ignore) \ +# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ + ({ __typeof (*mem) ret; \ + __asm __volatile ("xchgl %2, %%ebx\n\t" \ + LOCK "cmpxchg8b %1\n\t" \ + "xchgl %2, %%ebx" \ + : "=A" (ret), "=m" (*mem) \ : "DS" (((unsigned long long int) (newval)) \ & 0xffffffff), \ "c" (((unsigned long long int) (newval)) >> 32), \ - "1" (*mem), "0" (((unsigned long long int) (oldval)) \ + "1" (*mem), "a" (((unsigned long long int) (oldval)) \ & 0xffffffff), \ - "2" (((unsigned long long int) (oldval)) >> 32)); \ + "d" (((unsigned long long int) (oldval)) >> 32)); \ ret; }) # else # define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ - ({ unsigned char ret; \ - int ignore; \ - __asm __volatile (LOCK "cmpxchg8b %2, %1; setne %0" \ - : "=a" (ret), "=m" (*mem), "=d" (ignore) \ + ({ __typeof (*mem) ret; \ + __asm __volatile (LOCK "cmpxchg8b %1" \ + : "=A" (ret), "=m" (*mem) \ : "b" (((unsigned long long int) (newval)) \ & 0xffffffff), \ "c" (((unsigned long long int) (newval)) >> 32), \ - "1" (*mem), "0" (((unsigned long long int) (oldval)) \ + "1" (*mem), "a" (((unsigned long long int) (oldval)) \ & 0xffffffff), \ - "2" (((unsigned long long int) (oldval)) >> 32)); \ + "d" (((unsigned long long int) (oldval)) >> 32)); \ ret; }) # endif #endif |