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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-02 12:55:49 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-03-03 19:07:19 -0300 |
| commit | 120010cb1eea151d38a3e66f5ffc79a0c3110292 (patch) | |
| tree | 149786c6b833f4c80e6229b6e9b67b8c2bb980ea /tools/perf | |
| parent | e3ba76deef23064fc272424b86b506cd80b04fc5 (diff) | |
| download | linux-stable-120010cb1eea151d38a3e66f5ffc79a0c3110292.tar.gz linux-stable-120010cb1eea151d38a3e66f5ffc79a0c3110292.tar.bz2 linux-stable-120010cb1eea151d38a3e66f5ffc79a0c3110292.zip | |
tools build: Add test for sched_getcpu()
Instead of trying to go on adding more ifdef conditions, do a feature
test and define HAVE_SCHED_GETCPU_SUPPORT instead, then use it to
provide the prototype. No need to change the stub, as it is already a
__weak symbol.
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: http://lkml.kernel.org/n/tip-yge89er9g90sc0v6k0a0r5tr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Makefile.config | 4 | ||||
| -rw-r--r-- | tools/perf/util/cloexec.h | 6 | ||||
| -rw-r--r-- | tools/perf/util/util.h | 4 |
3 files changed, 6 insertions, 8 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 27c9fbca7bd9..2b656de99495 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -317,6 +317,10 @@ ifdef NO_DWARF NO_LIBDW_DWARF_UNWIND := 1 endif +ifeq ($(feature-sched_getcpu), 1) + CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT +endif + ifndef NO_LIBELF CFLAGS += -DHAVE_LIBELF_SUPPORT EXTLIBS += -lelf diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h index d0d465953d36..94a5a7d829d5 100644 --- a/tools/perf/util/cloexec.h +++ b/tools/perf/util/cloexec.h @@ -3,10 +3,4 @@ unsigned long perf_event_open_cloexec_flag(void); -#ifdef __GLIBC_PREREQ -#if !__GLIBC_PREREQ(2, 6) && !defined(__UCLIBC__) -int sched_getcpu(void) __THROW; -#endif -#endif - #endif /* __PERF_CLOEXEC_H */ diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index c74708da8571..b2cfa47990dc 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -355,8 +355,8 @@ void print_binary(unsigned char *data, size_t len, size_t bytes_per_line, print_binary_t printer, void *extra); -#if !defined(__GLIBC__) && !defined(__ANDROID__) -extern int sched_getcpu(void); +#ifndef HAVE_SCHED_GETCPU_SUPPORT +int sched_getcpu(void); #endif int is_printable_array(char *p, unsigned int len); |