From: Andi Kleen Date: Fri, 21 Nov 2014 21:38:00 +0000 (-0800) Subject: perf tools: Allow to force redirect pr_debug to stderr. X-Git-Tag: omap-for-v3.20/drop-legacy-3517~164^2~1^2~5 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f78eaef0e0493f6068777a246b9c4d9d5cf2b7aa;p=pandora-kernel.git 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: Andi Kleen Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/1416605880-25055-2-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- Reading git-diff-tree failed