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perf probe: Introduce util func is_sdt_event() 

Factor out the SDT event name checking routine as is_sdt_event().

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170314150658.7065-2-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ravi Bangoria 2017-03-14 20:36:52 +05:30 committed by Arnaldo Carvalho de Melo
parent ffa86c2f1a
commit af9100ad14
2 changed files with 21 additions and 8 deletions
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20
tools/perf/util/parse-events.h
View File

@ -8,6 +8,7 @@
#include <stdbool.h>
#include <linux/types.h>
#include <linux/perf_event.h>
#include <string.h>
struct list_head;
struct perf_evsel;
@ -196,4 +197,23 @@ int is_valid_tracepoint(const char *event_string);
int valid_event_mount(const char *eventfs);
char *parse_events_formats_error_string(char *additional_terms);
#ifdef HAVE_LIBELF_SUPPORT
/*
* If the probe point starts with '%',
* or starts with "sdt_" and has a ':' but no '=',
* then it should be a SDT/cached probe point.
*/
static inline bool is_sdt_event(char *str)
{
return (str[0] == '%' ||
(!strncmp(str, "sdt_", 4) &&
!!strchr(str, ':') && !strchr(str, '=')));
}
#else
static inline bool is_sdt_event(char *str __maybe_unused)
{
return false;
}
#endif /* HAVE_LIBELF_SUPPORT */
#endif /* __PERF_PARSE_EVENTS_H */

9
tools/perf/util/probe-event.c
View File

@ -1341,14 +1341,7 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
if (!arg)
return -EINVAL;
/*
* If the probe point starts with '%',
* or starts with "sdt_" and has a ':' but no '=',
* then it should be a SDT/cached probe point.
*/
if (arg[0] == '%' ||
(!strncmp(arg, "sdt_", 4) &&
!!strchr(arg, ':') && !strchr(arg, '='))) {
if (is_sdt_event(arg)) {
pev->sdt = true;
if (arg[0] == '%')
arg++;