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perf utils: Add perf_quiet_option()

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The perf_quiet_option() is to suppress all messages.  It's intended to
be called just after parsing options.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170217081742.17417-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2017-02-17 17:17:37 +09:00 committed by Arnaldo Carvalho de Melo
parent 483635a9d0
commit 80df198820
2 changed files with 18 additions and 0 deletions
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17
tools/perf/util/debug.c
View File

@ -203,11 +203,28 @@ int perf_debug_option(const char *str)
v = (v < 0) || (v > 10) ? 0 : v; v = (v < 0) || (v > 10) ? 0 : v;
} }
if (quiet)
v = -1;
*var->ptr = v; *var->ptr = v;
free(s); free(s);
return 0; return 0;
} }
int perf_quiet_option(void)
{
struct debug_variable *var = &debug_variables[0];
/* disable all debug messages */
while (var->name) {
*var->ptr = -1;
var++;
}
quiet = true;
return 0;
}
#define DEBUG_WRAPPER(__n, __l) \ #define DEBUG_WRAPPER(__n, __l) \
static int pr_ ## __n ## _wrapper(const char *fmt, ...) \ static int pr_ ## __n ## _wrapper(const char *fmt, ...) \
{ \ { \

1
tools/perf/util/debug.h
View File

@ -54,5 +54,6 @@ int veprintf(int level, int var, const char *fmt, va_list args);
int perf_debug_option(const char *str); int perf_debug_option(const char *str);
void perf_debug_setup(void); void perf_debug_setup(void);
int perf_quiet_option(void);
#endif /* __PERF_DEBUG_H */ #endif /* __PERF_DEBUG_H */