From 61a461fcbd62d42c29a1ea6a9cc3838ad9f49401 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 30 Jul 2019 11:20:55 -0300 Subject: [PATCH] perf config: Honour $PERF_CONFIG env var to specify alternate .perfconfig MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Cc: Taeung Song 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 --- tools/perf/perf.c | 3 +++ 1 file changed, 3 insertions(+) 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;