diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/i386/bits/atomic.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/i386/bits/atomic.h b/sysdeps/i386/bits/atomic.h index 27840f9fe3..aa3f901877 100644 --- a/sysdeps/i386/bits/atomic.h +++ b/sysdeps/i386/bits/atomic.h @@ -181,6 +181,11 @@ init_has_cmpxchg (void) \ \ *__gmemp == (oldval) ? (*__gmemp = __gnewval, 0) : 1; }) +/* XXX We do not really need 64-bit compare-and-exchange. At least + not in the moment. */ +# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ + ({ __typeof (*mem) ret = *(mem); abort (); ret = (newval); ret = (oldval); }) + #endif /* Note that we need no lock prefix. */ |