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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-07-30 17:20:55 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-08-12 22:26:02 +0300
commit61a461fcbd62d42c29a1ea6a9cc3838ad9f49401 (patch)
treea9f5a52892c20035e20ad3b7a04414d7bed9e889 /tools/perf/perf.c
parent57fc032ad643ffd018d66bd4c1bd3a91de4841e8 (diff)
downloadlinux-61a461fcbd62d42c29a1ea6a9cc3838ad9f49401.tar.xz
perf config: Honour $PERF_CONFIG env var to specify alternate .perfconfig
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>
Diffstat (limited to 'tools/perf/perf.c')
-rw-r--r--tools/perf/perf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 97e2628ea5dd..d4e4d53e8b44 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -441,6 +441,9 @@ 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;