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Commit 3740b9f0 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Greg Kroah-Hartman
Browse files

compiler-gcc.h: Introduce __optimize function attribute 



commit df5d45aa08f848b79caf395211b222790534ccc7 upstream.

Create a new function attribute __optimize, which allows to specify an
optimization level on a per-function basis.

Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7b559f7f

include/linux/compiler-gcc.h

+4 −0
Original line number Diff line number Diff line
@@ -187,6 +187,10 @@ 
#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__

include/linux/compiler.h

+4 −0
Original line number Diff line number Diff line
@@ -469,6 +469,10 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s 
# define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))

#endif



#ifndef __optimize

# define __optimize(level)

#endif



/* Compile time object size, -1 for unknown */

#ifndef __compiletime_object_size

# define __compiletime_object_size(obj) -1