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perf debug: Move debug initialization earlier 

This avoids segfaults during option handlers that use pr_err. For
example, "perf --debug nopager list" segfaults before this change.

Fixes: 8abceacff8 (perf debug: Add debug_set_file function)
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210519164447.2672030-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2021-05-19 09:44:47 -07:00 committed by Arnaldo Carvalho de Melo
parent 75ea44e356
commit c59870e211
1 changed files with 2 additions and 2 deletions
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4
tools/perf/perf.c
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@ -443,6 +443,8 @@ int main(int argc, const char **argv)
const char *cmd;
char sbuf[STRERR_BUFSIZE];
perf_debug_setup();
/* libsubcmd init */
exec_cmd_init("perf", PREFIX, PERF_EXEC_PATH, EXEC_PATH_ENVIRONMENT);
pager_init(PERF_PAGER_ENVIRONMENT);
@ -531,8 +533,6 @@ int main(int argc, const char **argv)
*/
pthread__block_sigwinch();
perf_debug_setup();
while (1) {
static int done_help;