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| author | cognet <cognet@FreeBSD.org> | 2004-11-23 16:32:34 +0000 |
|---|---|---|
| committer | cognet <cognet@FreeBSD.org> | 2004-11-23 16:32:34 +0000 |
| commit | d983d8756d4cfbe55c19b3b16b59d4bcc926bca5 (patch) | |
| tree | 06ab6114d6886de4c6eb5ae1e6aa366d6336197e /libexec | |
| parent | 61c101ec0de2d94095739fdab995de15573f579c (diff) | |
| download | FreeBSD-src-d983d8756d4cfbe55c19b3b16b59d4bcc926bca5.zip FreeBSD-src-d983d8756d4cfbe55c19b3b16b59d4bcc926bca5.tar.gz | |
Implement a dummy atomic_cmpset_32(). It should be safe to use it in rtld as
the signals are masked anyway.
Diffstat (limited to 'libexec')
| -rw-r--r-- | libexec/rtld-elf/arm/rtld_machdep.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libexec/rtld-elf/arm/rtld_machdep.h b/libexec/rtld-elf/arm/rtld_machdep.h index 8e841e0..cc1410c 100644 --- a/libexec/rtld-elf/arm/rtld_machdep.h +++ b/libexec/rtld-elf/arm/rtld_machdep.h @@ -70,4 +70,15 @@ typedef struct { void _rtld_bind_start(void); extern void *__tls_get_addr(tls_index *ti); + +static __inline u_int32_t +atomic_cmpset_32(volatile u_int32_t *p, u_int32_t cmpval, u_int32_t newval) +{ + + if (*p == cmpval) { + *p = newval; + return (1); + } + return (0); +} #endif |
