From: tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: jolsa@kernel.org, tglx@linutronix.de, wangnan0@huawei.com,
linux-kernel@vger.kernel.org, hpa@zytor.com, dsahern@gmail.com,
acme@redhat.com, namhyung@kernel.org, adrian.hunter@intel.com,
mingo@kernel.org
Subject: [tip:perf/core] tools include compiler-gcc: Add __pure attribute helper
Date: Sat, 19 May 2018 04:43:43 -0700 [thread overview]
Message-ID: <tip-oubheiqj8edo5rzewt11cbn0@git.kernel.org> (raw)
Commit-ID: 6e1690c4c0b540930f08295b6a95c8660b257745
Gitweb: https://git.kernel.org/tip/6e1690c4c0b540930f08295b6a95c8660b257745
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Thu, 17 May 2018 15:12:36 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 17 May 2018 15:17:21 -0300
tools include compiler-gcc: Add __pure attribute helper
Adopt it from the kernel sources, will be used soon.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-oubheiqj8edo5rzewt11cbn0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/include/linux/compiler-gcc.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h
index a3a4427441bf..70fe61295733 100644
--- a/tools/include/linux/compiler-gcc.h
+++ b/tools/include/linux/compiler-gcc.h
@@ -21,6 +21,9 @@
/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
+#ifndef __pure
+#define __pure __attribute__((pure))
+#endif
#define noinline __attribute__((noinline))
#ifndef __packed
#define __packed __attribute__((packed))
reply other threads:[~2018-05-19 11:43 UTC|newest]
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