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Commit 7c304ee0 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf trace: Add --verbose option 

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ain6q4u8g3bpnh18yhw24v2x@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent b059efdf

tools/perf/Documentation/perf-trace.txt

+4 −0
Original line number Diff line number Diff line
@@ -49,6 +49,10 @@ OPTIONS 
--uid=::

        Record events in threads owned by uid. Name or number.



-v::

--verbose=::

        Verbosity level.



-i::

--no-inherit::

	Child tasks do not inherit counters.

tools/perf/builtin-trace.c

+8 −4
Original line number Diff line number Diff line 
#include <traceevent/event-parse.h>

#include "builtin.h"

#include "util/color.h"

#include "util/debug.h"

#include "util/evlist.h"

#include "util/machine.h"

#include "util/thread.h"
@@ -311,10 +312,12 @@ static struct syscall *trace__syscall_info(struct trace *trace, 
	return &trace->syscalls.table[id];



out_cant_read:

	if (verbose) {

		fprintf(trace->output, "Problems reading syscall %d", id);

		if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)

			fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);

	fputs(" information", trace->output);

		fputs(" information\n", trace->output);

	}

	return NULL;

}
@@ -714,6 +717,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) 
		     "show only events with duration > N.M ms",

		     trace__set_duration),

	OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),

	OPT_INCR('v', "verbose", &verbose, "be more verbose"),

	OPT_END()

	};

	int err;