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| author | Ulrich Drepper <drepper@redhat.com> | 2006-12-21 21:50:33 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-12-21 21:50:33 +0000 |
| commit | fc242bef00206c3bab4117345734ce744f0b7eff (patch) | |
| tree | 8eaf53937aa9e43d99ea7e520329907b6c313b79 /include/atomic.h | |
| parent | 571511d557820b9ddbc400b7922f8904387ff78c (diff) | |
| download | glibc-fc242bef00206c3bab4117345734ce744f0b7eff.tar.gz glibc-fc242bef00206c3bab4117345734ce744f0b7eff.tar.xz glibc-fc242bef00206c3bab4117345734ce744f0b7eff.zip | |
* include/atomic.h (atomic_forced_read): New macro.
Diffstat (limited to 'include/atomic.h')
| -rw-r--r-- | include/atomic.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/atomic.h b/include/atomic.h index ec1e9899f1..2ad8b5fcb7 100644 --- a/include/atomic.h +++ b/include/atomic.h @@ -497,6 +497,12 @@ #endif +#ifndef atomic_forced_read +# define atomic_forced_read(x) \ + ({ __typeof (x) __x; __asm ("" : "=r" (__x) : "0" (x)); __x; }) +#endif + + #ifndef atomic_delay # define atomic_delay() do { /* nothing */ } while (0) #endif |