From 0dd5041c9a0eaf8c5c3fd46df4ee60f877799f44 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Thu, 8 Jun 2023 16:28:03 -0700 Subject: perf addr_location: Add init/exit/copy functions struct addr_location holds references to multiple reference counted objects. Add init/exit functions to make maintenance of those more consistent with the rest of the code and to try to avoid leaks. Modification of thread reference counts isn't included in this change. Committer notes: I needed to initialize result to sample->ip to make sure is set to something, fixing a compile time error, mostly keeping the previous logic as build_alloc_func_list() already does debugging/error prints about what went wrong if it takes the 'goto out'. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ali Saidi Cc: Andi Kleen Cc: Athira Rajeev Cc: Brian Robbins Cc: Changbin Du Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Fangrui Song Cc: German Gomez Cc: Ingo Molnar Cc: Ivan Babrou Cc: James Clark Cc: Jing Zhang Cc: Jiri Olsa Cc: John Garry Cc: K Prateek Nayak Cc: Kan Liang Cc: Leo Yan Cc: Liam Howlett Cc: Mark Rutland Cc: Miguel Ojeda Cc: Mike Leach Cc: Namhyung Kim Cc: Naveen N. Rao Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Sean Christopherson Cc: Steinar H. Gunderson Cc: Suzuki Poulouse Cc: Wenyu Liu Cc: Will Deacon Cc: Yang Jihong Cc: Ye Xingchen Cc: Yuan Can Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230608232823.4027869-7-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/scripting-engines/trace-event-python.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'tools/perf/util/scripting-engines/trace-event-python.c') diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index f3d262e871ac..d7c99028c6e6 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -469,9 +469,11 @@ static PyObject *python_process_callchain(struct perf_sample *sample, struct addr_location node_al; unsigned long offset; + addr_location__init(&node_al); node_al.addr = map__map_ip(map, node->ip); - node_al.map = map; + node_al.map = map__get(map); offset = get_offset(node->ms.sym, &node_al); + addr_location__exit(&node_al); pydict_set_item_string_decref( pyelem, "sym_off", @@ -539,6 +541,7 @@ static PyObject *python_process_brstack(struct perf_sample *sample, pydict_set_item_string_decref(pyelem, "cycles", PyLong_FromUnsignedLongLong(entries[i].flags.cycles)); + addr_location__init(&al); thread__find_map_fb(thread, sample->cpumode, entries[i].from, &al); dsoname = get_dsoname(al.map); @@ -551,6 +554,7 @@ static PyObject *python_process_brstack(struct perf_sample *sample, pydict_set_item_string_decref(pyelem, "to_dsoname", _PyUnicode_FromString(dsoname)); + addr_location__exit(&al); PyList_Append(pylist, pyelem); Py_DECREF(pyelem); } @@ -594,7 +598,6 @@ static PyObject *python_process_brstacksym(struct perf_sample *sample, PyObject *pylist; u64 i; char bf[512]; - struct addr_location al; pylist = PyList_New(0); if (!pylist) @@ -605,7 +608,9 @@ static PyObject *python_process_brstacksym(struct perf_sample *sample, for (i = 0; i < br->nr; i++) { PyObject *pyelem; + struct addr_location al; + addr_location__init(&al); pyelem = PyDict_New(); if (!pyelem) Py_FatalError("couldn't create Python dictionary"); @@ -644,6 +649,7 @@ static PyObject *python_process_brstacksym(struct perf_sample *sample, PyList_Append(pylist, pyelem); Py_DECREF(pyelem); + addr_location__exit(&al); } exit: -- cgit v1.2.3