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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-11 15:48:47 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-18 12:23:56 -0300 |
| commit | 748fe0889c1ff12d378946bd5326e8ee8eacf5cf (patch) | |
| tree | a570c3224193453a5df2fbf37969ee8a16717143 /tools/perf/Makefile.config | |
| parent | ece9804985b57e1ccd83b1fb6288520955a29d51 (diff) | |
| download | lwn-748fe0889c1ff12d378946bd5326e8ee8eacf5cf.tar.gz lwn-748fe0889c1ff12d378946bd5326e8ee8eacf5cf.zip | |
perf tools: Add missing sigqueue() prototype for systems lacking it
There are systems such as the Android NDK API level 24 has the
sigqueue() function but doesn't provide a prototype, adding noise to the
build:
util/evlist.c: In function 'perf_evlist__prepare_workload':
util/evlist.c:1494:4: warning: implicit declaration of function 'sigqueue' [-Wimplicit-function-declaration]
if (sigqueue(getppid(), SIGUSR1, val))
^
util/evlist.c:1494:4: warning: nested extern declaration of 'sigqueue' [-Wnested-externs]
Define a LACKS_SIGQUEUE_PROTOTYPE define so that code needing that can
get a prototype.
Checked in the bionic git repo to be available since level 23:
https://android.googlesource.com/platform/bionic/+/master/libc/include/signal.h#123
int sigqueue(pid_t __pid, int __signal, const union sigval __value) __INTRODUCED_IN(23);
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-lmhpev1uni9kdrv7j29glyov@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.config')
| -rw-r--r-- | tools/perf/Makefile.config | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index b66f97a04b12..265a9225e5fc 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -294,6 +294,7 @@ ifndef NO_BIONIC $(call feature_check,bionic) ifeq ($(feature-bionic), 1) BIONIC := 1 + CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE EXTLIBS := $(filter-out -lrt,$(EXTLIBS)) EXTLIBS := $(filter-out -lpthread,$(EXTLIBS)) endif |