Commit 6d2ef226 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

compiler_attributes.h: drop __has_attribute() support for gcc4 



Now that GCC 5.1 is the minimally supported default, the manual
workaround for older gcc versions not having __has_attribute() are no
longer relevant and can be removed.

Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6f20fa2d

include/linux/compiler_attributes.h

+0 −20
Original line number Diff line number Diff line
@@ -20,26 +20,6 @@ 
 * Provide links to the documentation of each supported compiler, if it exists.

 */



/*

 * __has_attribute is supported on gcc >= 5, clang >= 2.9 and icc >= 17.

 * In the meantime, to support gcc < 5, we implement __has_attribute

 * by hand.

 */

#ifndef __has_attribute

# define __has_attribute(x) __GCC4_has_attribute_##x

# define __GCC4_has_attribute___assume_aligned__      1

# define __GCC4_has_attribute___copy__                0

# define __GCC4_has_attribute___designated_init__     0

# define __GCC4_has_attribute___externally_visible__  1

# define __GCC4_has_attribute___no_caller_saved_registers__ 0

# define __GCC4_has_attribute___noclone__             1

# define __GCC4_has_attribute___no_profile_instrument_function__ 0

# define __GCC4_has_attribute___nonstring__           0

# define __GCC4_has_attribute___no_sanitize_address__ 1

# define __GCC4_has_attribute___no_sanitize_undefined__ 1

# define __GCC4_has_attribute___fallthrough__         0

#endif



/*

 *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alias-function-attribute

 */