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authorAdrian Hunter <adrian.hunter@intel.com>2021-05-30 22:23:05 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-06-01 16:04:35 +0300
commite79457a526105c94930a5babbecaeeb794593723 (patch)
treec0028e60eb4db74a4922a605d2d04ce6c3e1c9fc /tools/perf/scripts
parent7d00540d7deb6802cde23b132b0c50347f27cc90 (diff)
downloadlinux-e79457a526105c94930a5babbecaeeb794593723.tar.xz
perf scripting python: Add perf_sample_srcline() and perf_sample_srccode()
Add perf_sample_srcline() and perf_sample_srccode() to the perf_trace_context module so that a script can get the srcline or srccode information. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210530192308.7382-11-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts')
-rw-r--r--tools/perf/scripts/python/Perf-Trace-Util/Context.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
index 3c9bc12a1332..895f5fc23965 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c
+++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
@@ -5,14 +5,23 @@
* Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
*/
+/*
+ * Use Py_ssize_t for '#' formats to avoid DeprecationWarning: PY_SSIZE_T_CLEAN
+ * will be required for '#' formats.
+ */
+#define PY_SSIZE_T_CLEAN
+
#include <Python.h>
#include "../../../util/trace-event.h"
#include "../../../util/event.h"
#include "../../../util/symbol.h"
#include "../../../util/thread.h"
+#include "../../../util/map.h"
#include "../../../util/maps.h"
#include "../../../util/auxtrace.h"
#include "../../../util/session.h"
+#include "../../../util/srcline.h"
+#include "../../../util/srccode.h"
#if PY_MAJOR_VERSION < 3
#define _PyCapsule_GetPointer(arg1, arg2) \
@@ -125,6 +134,49 @@ out:
return Py_BuildValue("i", retval);
}
+static PyObject *perf_sample_src(PyObject *obj, PyObject *args, bool get_srccode)
+{
+ struct scripting_context *c = get_scripting_context(args);
+ unsigned int line = 0;
+ char *srcfile = NULL;
+ char *srccode = NULL;
+ PyObject *result;
+ struct map *map;
+ int len = 0;
+ u64 addr;
+
+ if (!c)
+ return NULL;
+
+ map = c->al->map;
+ addr = c->al->addr;
+
+ if (map && map->dso)
+ srcfile = get_srcline_split(map->dso, map__rip_2objdump(map, addr), &line);
+
+ if (get_srccode) {
+ if (srcfile)
+ srccode = find_sourceline(srcfile, line, &len);
+ result = Py_BuildValue("(sIs#)", srcfile, line, srccode, (Py_ssize_t)len);
+ } else {
+ result = Py_BuildValue("(sI)", srcfile, line);
+ }
+
+ free(srcfile);
+
+ return result;
+}
+
+static PyObject *perf_sample_srcline(PyObject *obj, PyObject *args)
+{
+ return perf_sample_src(obj, args, false);
+}
+
+static PyObject *perf_sample_srccode(PyObject *obj, PyObject *args)
+{
+ return perf_sample_src(obj, args, true);
+}
+
static PyMethodDef ContextMethods[] = {
{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
"Get the common preempt count event field value."},
@@ -136,6 +188,10 @@ static PyMethodDef ContextMethods[] = {
METH_VARARGS, "Get the machine code instruction."},
{ "perf_set_itrace_options", perf_set_itrace_options,
METH_VARARGS, "Set --itrace options."},
+ { "perf_sample_srcline", perf_sample_srcline,
+ METH_VARARGS, "Get source file name and line number."},
+ { "perf_sample_srccode", perf_sample_srccode,
+ METH_VARARGS, "Get source file name, line number and line."},
{ NULL, NULL, 0, NULL}
};