[PATCH v1 05/10] perf: Add perf_resolve_ip python interface

[Andi Kleen <ak@linux.intel.com>]

Add a perf_resolve_ip python interface to resolve filename/line/disc for
specific addresses.  I had a case where a script needs to resolve
this for the base symbol of a sample. It reuses the same machinery
as the earlier added perf_brstack_srcline.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 .../scripts/python/Perf-Trace-Util/Context.c  | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
index a95a27895a15..417466231f71 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c
+++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
@@ -183,7 +183,7 @@ static PyObject *perf_sample_srccode(PyObject *obj, PyObject *args)
 	return perf_sample_src(obj, args, true);
 }
 
-static PyObject *do_perf_brstack_srcline(struct scripting_context *c, PyObject *ipp)
+static PyObject *do_resolve_ip(struct scripting_context *c, PyObject *ipp)
 {
 	struct addr_location al;
 	struct dso *dso;
@@ -233,11 +233,22 @@ static PyObject *perf_brstack_srcline(PyObject *obj, PyObject *args)
 	struct scripting_context *c = get_args(args, "brstack", &brstack);
 	if (!c)
 		return NULL;
-	from = do_perf_brstack_srcline(c, PyDict_GetItemString(brstack, "from"));
-	to = do_perf_brstack_srcline(c, PyDict_GetItemString(brstack, "to"));
+	from = do_resolve_ip(c, PyDict_GetItemString(brstack, "from"));
+	to = do_resolve_ip(c, PyDict_GetItemString(brstack, "to"));
 	return Py_BuildValue("(OO)", from, to);
 }
 
+/* Resolve an numerical address to srcfile/line/disc */
+
+static PyObject *perf_resolve_ip(PyObject *obj, PyObject *args)
+{
+	PyObject *ip;
+	struct scripting_context *c = get_args(args, "ip", &ip);
+	if (!c)
+		return NULL;
+	return do_resolve_ip(c, ip);
+}
+
 static PyMethodDef ContextMethods[] = {
 #ifdef HAVE_LIBTRACEEVENT
 	{ "common_pc", perf_trace_context_common_pc, METH_VARARGS,
@@ -257,6 +268,8 @@ static PyMethodDef ContextMethods[] = {
 	  METH_VARARGS,	"Get source file name, line number and line."},
 	{ "perf_brstack_srcline", perf_brstack_srcline,
 	  METH_VARARGS, "Get source file name, line number, discriminator for from/to of a brstack entry." },
+	{ "perf_resolve_ip", perf_resolve_ip,
+	  METH_VARARGS, "Get source file name, line number, discriminator for numerical IP." },
 	{ NULL, NULL, 0, NULL}
 };
 
-- 
2.45.2