Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f78eaef0 authored by Andi Kleen's avatar Andi Kleen Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Allow to force redirect pr_debug to stderr. 



When debugging the tui browser I find it useful to redirect the debug
log into a file. Currently it's always forced to the message line.

Add an option to force it to stderr. Then it can be easily redirected.

Example:

  [root@zoo ~]# perf --debug stderr report -vv 2> /tmp/debug
  [root@zoo ~]# tail /tmp/debug
  dso open failed, mmap: No such file or directory
  dso open failed, mmap: No such file or directory
  dso open failed, mmap: No such file or directory
  dso open failed, mmap: No such file or directory
  dso open failed, mmap: No such file or directory
  Using /root/.debug/.build-id/4e/841948927029fb650132253642d5dbb2c1fb93 for symbols
  Failed to open /tmp/perf-8831.map, continuing without symbols
  Failed to open /tmp/perf-12721.map, continuing without symbols
  Failed to open /tmp/perf-6966.map, continuing without symbols
  Failed to open /tmp/perf-8802.map, continuing without symbols
  [root@zoo ~]#

Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1416605880-25055-2-git-send-email-andi@firstfloor.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 330dfa22

tools/perf/util/debug.c

+3 −1
Original line number Diff line number Diff line
@@ -19,13 +19,14 @@ 
int verbose;

bool dump_trace = false, quiet = false;

int debug_ordered_events;

static int redirect_to_stderr;



static int _eprintf(int level, int var, const char *fmt, va_list args)

{

	int ret = 0;



	if (var >= level) {

		if (use_browser >= 1)

		if (use_browser >= 1 && !redirect_to_stderr)

			ui_helpline__vshow(fmt, args);

		else

			ret = vfprintf(stderr, fmt, args);
@@ -145,6 +146,7 @@ static struct debug_variable { 
} debug_variables[] = {

	{ .name = "verbose",		.ptr = &verbose },

	{ .name = "ordered-events",	.ptr = &debug_ordered_events},

	{ .name = "stderr",		.ptr = &redirect_to_stderr},

	{ .name = NULL, }

};