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perf tools: Introduce perf_target__validate() helper

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The perf_target__validate function is used to check given PID/TID/UID/CPU
target options and warn if some combination is impossible. Also this can
make some arguments of parse_target_uid() function useless as it is checked
before the call via our new helper.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1335417327-11796-5-git-send-email-namhyung.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-04-26 14:15:18 +09:00 • committed by Arnaldo Carvalho de Melo
parent fe9d18a71d
commit 4bd0f2d2c0
5 changed files with 31 additions and 29 deletions
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3
tools/perf/builtin-stat.c
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@ -1203,8 +1203,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
if (add_default_attributes())
goto out;
if (target.pid)
target.tid = target.pid;
perf_target__validate(&target);
evsel_list->threads = thread_map__new_str(target.pid,
target.tid, UINT_MAX);