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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-12-23 05:11:58 +0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-12-23 06:28:55 +0800 |
| commit | a2b0ff98a0d44259cc5f6bd7d3a3676ae9f8996a (patch) | |
| tree | 7816983cdeea6e6c32dd005c76da785811ea3047 /include/sys | |
| parent | 3fb895ac88e99201573352b1abc18db4340ecede (diff) | |
| download | glibc-a2b0ff98a0d44259cc5f6bd7d3a3676ae9f8996a.zip glibc-a2b0ff98a0d44259cc5f6bd7d3a3676ae9f8996a.tar.gz glibc-a2b0ff98a0d44259cc5f6bd7d3a3676ae9f8996a.tar.bz2 | |
include/sys/cdefs.h: Add __attribute_optimization_barrier__
Add __attribute_optimization_barrier__ to disable inlining and cloning on a
function. For Clang, expand it to
__attribute__ ((optnone))
Otherwise, expand it to
__attribute__ ((noinline, clone))
Co-Authored-By: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/cdefs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h index b84ad34..a676f75 100644 --- a/include/sys/cdefs.h +++ b/include/sys/cdefs.h @@ -56,4 +56,11 @@ rtld_hidden_proto (__chk_fail) #endif /* !defined _ISOMAC */ +/* Prevents a function from being considered for inlining and cloning. */ +#ifdef __clang__ +# define __attribute_optimization_barrier__ __attribute__ ((optnone)) +#else +# define __attribute_optimization_barrier__ __attribute__ ((noinline, noclone)) +#endif + #endif |