cecaec635d
Normally the hist entry's srcline and/or srcfile is set during sorting.
However sometime it's possible to a hist entry's srcline is not set yet
after the sorting. This is because the entry is so unique and other
sort keys already make it distinct. Then the srcline/file sort didn't
have a chance to be called during the sorting. In that case it has NULL
srcline/srcfile field and shows nothing.
Before:
$ perf report -s comm,sym,srcline
...
Overhead Command Symbol
-----------------------------------------------------------------
34.42% swapper [k] intel_idle intel_idle.c:0
2.44% perf [.] __poll_nocancel (null)
1.70% gnome-shell [k] fw_domains_get (null)
1.04% Xorg [k] sock_poll (null)
After:
34.42% swapper [k] intel_idle intel_idle.c:0
2.44% perf [.] __poll_nocancel .:0
1.70% gnome-shell [k] fw_domains_get fw_domains_get+42
1.04% Xorg [k] sock_poll socket.c:0
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1456101111-14400-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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