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compiler_gcc: do not redefine __gnu_attributes

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gcc allows extensions to be non compiler specific by defining
__* macros for the attributes supported by gcc. Having a
different definition causes many warnings during the build
(cdefs.h on FreeBSD uses __attribute((__pure__)) where u-boot
uses __attribute__((pure)) for example). Do not redefine
these macros to suppress these warnings.

This patch ignores the checkpatch warning:
WARNING: __packed is preferred over __attribute__((packed))

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
This commit is contained in:
Jeroen Hofstee 2013-08-10 17:16:50 +02:00 • committed by Tom Rini
parent dc19ec11d7
commit 7ea50d5284
2 changed files with 12 additions and 4 deletions
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12
include/linux/compiler-gcc.h
View file

@ -50,7 +50,9 @@
#endif #endif
#define __deprecated __attribute__((deprecated)) #define __deprecated __attribute__((deprecated))
#define __packed __attribute__((packed)) #ifndef __packed
# define __packed __attribute__((packed))
#endif
#define __weak __attribute__((weak)) #define __weak __attribute__((weak))
/* /*
@ -73,8 +75,12 @@
* would be. * would be.
* [...] * [...]
*/ */
#define __pure __attribute__((pure)) #ifndef __pure
#define __aligned(x) __attribute__((aligned(x))) # define __pure __attribute__((pure))
#endif
#ifndef __aligned
# define __aligned(x) __attribute__((aligned(x)))
#endif
#define __printf(a,b) __attribute__((format(printf,a,b))) #define __printf(a,b) __attribute__((format(printf,a,b)))
#define noinline __attribute__((noinline)) #define noinline __attribute__((noinline))
#define __attribute_const__ __attribute__((__const__)) #define __attribute_const__ __attribute__((__const__))

4
include/linux/compiler-gcc4.h
View file

@ -12,7 +12,9 @@
#define __used __attribute__((__used__)) #define __used __attribute__((__used__))
#define __must_check __attribute__((warn_unused_result)) #define __must_check __attribute__((warn_unused_result))
#define __compiler_offsetof(a,b) __builtin_offsetof(a,b) #define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
#define __always_inline inline __attribute__((always_inline)) #ifndef __always_inline
# define __always_inline inline __attribute__((always_inline))
#endif
/* /*
* A trick to suppress uninitialized variable warning without generating any * A trick to suppress uninitialized variable warning without generating any