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Commit ea2313bf authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by Greg Kroah-Hartman
Browse files

tools include: Introduce linux/compiler-gcc.h 

commit 192614010a5052fe92611c7076ef664fd9bb60e8 upstream.

To match the kernel headers structure, setting up things that are
specific to gcc or to some specific version of gcc.

It gets included by linux/compiler.h when gcc is the compiler being
used.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Perches <joe@perches.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fabcqfq4asodq9t158hcs8t3@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 22210278

tools/include/linux/compiler-gcc.h

0 → 100644
+14 −0
Original line number Diff line number Diff line 
#ifndef _TOOLS_LINUX_COMPILER_H_

#error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."

#endif



/*

 * Common definitions for all gcc versions go here.

 */

#define GCC_VERSION (__GNUC__ * 10000		\

		     + __GNUC_MINOR__ * 100	\

		     + __GNUC_PATCHLEVEL__)



#if GCC_VERSION >= 70000 && !defined(__CHECKER__)

# define __fallthrough __attribute__ ((fallthrough))

#endif

tools/include/linux/compiler.h

+5 −5
Original line number Diff line number Diff line 
#ifndef _TOOLS_LINUX_COMPILER_H_

#define _TOOLS_LINUX_COMPILER_H_



#ifdef __GNUC__

#include <linux/compiler-gcc.h>

#endif



/* Optimization barrier */

/* The "volatile" is due to gcc bugs */

#define barrier() __asm__ __volatile__("": : :"memory")
@@ -128,11 +132,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s 




#ifndef __fallthrough

# if defined(__GNUC__) && __GNUC__ >= 7

#  define __fallthrough __attribute__ ((fallthrough))

# else

# define __fallthrough

#endif

#endif



#endif /* _TOOLS_LINUX_COMPILER_H */

tools/perf/MANIFEST

+1 −0
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ tools/include/asm-generic/bitops.h 
tools/include/linux/atomic.h

tools/include/linux/bitops.h

tools/include/linux/compiler.h

tools/include/linux/compiler-gcc.h

tools/include/linux/coresight-pmu.h

tools/include/linux/filter.h

tools/include/linux/hash.h