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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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4
tools/perf/util/util.h
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@@ -246,10 +246,12 @@ unsigned long convert_unit(unsigned long value, char *unit);
int readn(int fd, void *buf, size_t size);
struct perf_event_attr;
struct perf_target;
void event_attr_init(struct perf_event_attr *attr);
uid_t parse_target_uid(const char *str, const char *tid, const char *pid);
uid_t parse_target_uid(const char *str);
void perf_target__validate(struct perf_target *target);
#define _STR(x) #x
#define STR(x) _STR(x)