Commit-ID: b3f33f930606a55b547ac4ef5a32df2c23a44ec1
Gitweb: http://git.kernel.org/tip/b3f33f930606a55b547ac4ef5a32df2c23a44ec1
Author: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxxxxxxx>
AuthorDate: Wed, 3 Aug 2016 14:28:44 +0530
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 1 Sep 2016 12:42:25 -0300
perf probe: Add helper function to check if probe with variable
Introduce helper function instead of inline code and replace hardcoded
strings "$vars" and "$params" with their corresponding macros.
perf_probe_with_var() is not declared as static since it will be called
from different file in subsequent patch.
Signed-off-by: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxxxxxxx>
Acked-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Hemant Kumar <hemant@xxxxxxxxxxxxxxxxxx>
Cc: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1470214725-5023-1-git-send-email-ravi.bangoria@xxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/probe-event.c | 22 +++++++++++++++-------
tools/perf/util/probe-event.h | 2 ++
2 files changed, 17 insertions(+), 7 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 8a1e9e6..a543e9c 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1618,19 +1618,27 @@ out:
return ret;
}
+/* Returns true if *any* ARG is either C variable, $params or $vars. */
+bool perf_probe_with_var(struct perf_probe_event *pev)
+{
+ int i = 0;
+
+ for (i = 0; i < pev->nargs; i++)
+ if (is_c_varname(pev->args[i].var) ||
+ !strcmp(pev->args[i].var, PROBE_ARG_PARAMS) ||
+ !strcmp(pev->args[i].var, PROBE_ARG_VARS))
+ return true;
+ return false;
+}
+
/* Return true if this perf_probe_event requires debuginfo */
bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
{
- int i;
-
if (pev->point.file || pev->point.line || pev->point.lazy_line)
return true;
- for (i = 0; i < pev->nargs; i++)
- if (is_c_varname(pev->args[i].var) ||
- !strcmp(pev->args[i].var, "$params") ||
- !strcmp(pev->args[i].var, "$vars"))
- return true;
+ if (perf_probe_with_var(pev))
+ return true;
return false;
}
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 6209408..8091d15 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -128,6 +128,8 @@ char *synthesize_perf_probe_point(struct perf_probe_point *pp);
int perf_probe_event__copy(struct perf_probe_event *dst,
struct perf_probe_event *src);
+bool perf_probe_with_var(struct perf_probe_event *pev);
+
/* Check the perf_probe_event needs debuginfo */
bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
--
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