From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751800AbdBNBOS (ORCPT ); Mon, 13 Feb 2017 20:14:18 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:38806 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751749AbdBNBOQ (ORCPT ); Mon, 13 Feb 2017 20:14:16 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , David Ahern , Jiri Olsa , Joe Perches , Namhyung Kim , Wang Nan Subject: [PATCH 01/15] tools include: Introduce linux/compiler-gcc.h Date: Mon, 13 Feb 2017 22:13:46 -0300 Message-Id: <20170214011400.13352-2-acme@kernel.org> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170214011400.13352-1-acme@kernel.org> References: <20170214011400.13352-1-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo 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 Cc: David Ahern Cc: Jiri Olsa Cc: Joe Perches Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-fabcqfq4asodq9t158hcs8t3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/linux/compiler-gcc.h | 14 ++++++++++++++ tools/include/linux/compiler.h | 10 +++++----- tools/perf/MANIFEST | 1 + 3 files changed, 20 insertions(+), 5 deletions(-) create mode 100644 tools/include/linux/compiler-gcc.h diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h new file mode 100644 index 000000000000..48af2f10a42d --- /dev/null +++ b/tools/include/linux/compiler-gcc.h @@ -0,0 +1,14 @@ +#ifndef _TOOLS_LINUX_COMPILER_H_ +#error "Please don't include directly, include 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 diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index d94179f94caa..6326ede9aece 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -1,6 +1,10 @@ #ifndef _TOOLS_LINUX_COMPILER_H_ #define _TOOLS_LINUX_COMPILER_H_ +#ifdef __GNUC__ +#include +#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 +# define __fallthrough #endif #endif /* _TOOLS_LINUX_COMPILER_H */ diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index a511e5f31e36..8672f835ae4e 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -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 -- 2.9.3