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| author |   Geert Uytterhoeven <geert@linux-m68k.org> | 2018-02-01 11:21:58 +0100 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2018-02-08 22:37:10 +1100 |
| commit | df5d45aa08f848b79caf395211b222790534ccc7 (patch) | |
| tree | 14354434e1d0b1a2c4c046f4a22c6274fb44f935 | |
| parent | crypto: sha3-generic - deal with oversize stack frames (diff) | |
| download | linux-dev-df5d45aa08f848b79caf395211b222790534ccc7.tar.xz linux-dev-df5d45aa08f848b79caf395211b222790534ccc7.zip | |
compiler-gcc.h: Introduce __optimize function attribute
Create a new function attribute __optimize, which allows to specify an
optimization level on a per-function basis.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | include/linux/compiler-gcc.h | 4 | ||||
| -rw-r--r-- | include/linux/compiler.h | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 2272ded07496..7bba8e28c529 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -196,6 +196,10 @@ #endif /* __CHECKER__ */ #endif /* GCC_VERSION >= 40300 */ +#if GCC_VERSION >= 40400 +#define __optimize(level) __attribute__((__optimize__(level))) +#endif /* GCC_VERSION >= 40400 */ + #if GCC_VERSION >= 40500 #ifndef __CHECKER__ diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 188ed9f65517..cdc629f20e20 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -271,6 +271,10 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s #endif /* __ASSEMBLY__ */ +#ifndef __optimize +# define __optimize(level) +#endif + /* Compile time object size, -1 for unknown */ #ifndef __compiletime_object_size # define __compiletime_object_size(obj) -1 |