From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Adrian Hunter <adrian.hunter@intel.com>,
David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
Joe Perches <joe@perches.com>, Namhyung Kim <namhyung@kernel.org>,
Wang Nan <wangnan0@huawei.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 4.9 06/29] tools include: Introduce linux/compiler-gcc.h
Date: Mon, 4 Jun 2018 08:58:02 +0200 [thread overview]
Message-ID: <20180604065802.412382941@linuxfoundation.org> (raw)
In-Reply-To: <20180604065802.157744637@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnaldo Carvalho de Melo <acme@redhat.com>
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: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/include/linux/compiler-gcc.h | 14 ++++++++++++++
tools/include/linux/compiler.h | 10 +++++-----
tools/perf/MANIFEST | 1 +
3 files changed, 20 insertions(+), 5 deletions(-)
--- /dev/null
+++ b/tools/include/linux/compiler-gcc.h
@@ -0,0 +1,14 @@
+#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
--- 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 <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
#ifndef __fallthrough
-# if defined(__GNUC__) && __GNUC__ >= 7
-# define __fallthrough __attribute__ ((fallthrough))
-# else
-# define __fallthrough
-# endif
+# define __fallthrough
#endif
#endif /* _TOOLS_LINUX_COMPILER_H */
--- 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
next prev parent reply other threads:[~2018-06-04 6:59 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-04 6:57 [PATCH 4.9 00/29] 4.9.106-stable review Greg Kroah-Hartman
2018-06-04 6:57 ` [PATCH 4.9 01/29] objtool: Improve detection of BUG() and other dead ends Greg Kroah-Hartman
2018-06-04 6:57 ` [PATCH 4.9 02/29] objtool: Move checking code to check.c Greg Kroah-Hartman
2018-06-04 6:57 ` [PATCH 4.9 03/29] tools lib: Add for_each_clear_bit macro Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 04/29] tools: add more bitmap functions Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 05/29] tools: enable endian checks for all sparse builds Greg Kroah-Hartman
2018-06-04 6:58 ` Greg Kroah-Hartman [this message]
2018-06-04 6:58 ` [PATCH 4.9 07/29] radix tree test suite: Remove types.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 08/29] tools include: Adopt __compiletime_error Greg Kroah-Hartman
2018-06-04 6:58 ` Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 09/29] tools include: Introduce atomic_cmpxchg_{relaxed,release}() Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 10/29] tools include: Add UINT_MAX def to kernel.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 11/29] tools include: Adopt kernels refcount.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 12/29] perf tools: Force fixdep compilation at the start of the build Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 13/29] perf tools: Move headers check into bash script Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 14/29] tools include uapi: Grab copies of stat.h and fcntl.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 15/29] tools include: Introduce linux/bug.h, from the kernel sources Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 16/29] tools include: Adopt __same_type() and __must_be_array() from the kernel Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 17/29] tools include: Move ARRAY_SIZE() to linux/kernel.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 18/29] tools include: Drop ARRAY_SIZE() definition from linux/hashtable.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 19/29] tools include: Include missing headers for fls() and types in linux/log2.h Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 20/29] objtool: sync up with the 4.14.47 version of objtool Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 21/29] objtool: Support GCC 8s cold subfunctions Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 22/29] objtool: Support GCC 8 switch tables Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 23/29] objtool: Detect RIP-relative switch table references Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 24/29] objtool: Detect RIP-relative switch table references, part 2 Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 25/29] objtool: Fix "noreturn" detection for recursive sibling calls Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 26/29] objtool, x86: Add several functions and files to the objtool whitelist Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 27/29] perf/tools: header file sync up Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 28/29] objtool: header file sync-up Greg Kroah-Hartman
2018-06-04 6:58 ` [PATCH 4.9 29/29] x86/xen: Add unwind hint annotations to xen_setup_gdt Greg Kroah-Hartman
2018-06-04 10:15 ` [PATCH 4.9 00/29] 4.9.106-stable review Guenter Roeck
2018-06-04 11:27 ` Greg Kroah-Hartman
2018-06-04 12:21 ` Greg Kroah-Hartman
2018-06-04 16:16 ` Guenter Roeck
2018-06-04 16:54 ` Guenter Roeck
2018-06-04 16:57 ` Greg Kroah-Hartman
2018-06-04 17:04 ` Guenter Roeck
2018-06-04 16:58 ` Greg Kroah-Hartman
2018-06-04 19:46 ` Shuah Khan
2018-06-05 6:14 ` Naresh Kamboju
[not found] ` <5b152b7c.1c69fb81.3f04a.096f@mx.google.com>
[not found] ` <7hr2lmjgcd.fsf@baylibre.com>
2018-06-05 10:51 ` Mark Brown
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