From: Arnaldo Carvalho de Melo acme@redhat.com
[ Upstream commit 61a461fcbd62d42c29a1ea6a9cc3838ad9f49401 ]
We had this comment in Documentation/perf_counter/config.c, i.e. since when we got this from the git sources, but never really did that getenv("PERF_CONFIG"), do it now as I need to disable whatever ~/.perfconfig root has so that tests parsing tool output are done for the expected default output or that we specify an alternate config file that when read will make the tools produce expected output.
Cc: Adrian Hunter adrian.hunter@intel.com Cc: Jiri Olsa jolsa@kernel.org Cc: Luis Cláudio Gonçalves lclaudio@redhat.com Cc: Namhyung Kim namhyung@kernel.org Cc: Taeung Song treeze.taeung@gmail.com Fixes: 078006012401 ("perf_counter tools: add in basic glue from Git") Link: https://lkml.kernel.org/n/tip-jo209zac9rut0dz1rqvbdlgm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/perf.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 72df4b6fa36fd..4c45cdf38adae 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -440,6 +440,9 @@ int main(int argc, const char **argv)
srandom(time(NULL));
+ /* Setting $PERF_CONFIG makes perf read _only_ the given config file. */ + config_exclusive_filename = getenv("PERF_CONFIG"); + err = perf_config(perf_default_config, NULL); if (err) return err;