From c4f462235c0f61a0eff2ca0f965a3fdceb80347d Mon Sep 17 00:00:00 2001
From: Leo Yan <leo.yan@linaro.org>
Date: Sat, 21 May 2022 21:04:45 +0800
Subject: perf scripting python: Expose dso and map information
This change adds dso build_id and corresponding map's start and end
address. The info of dso build_id can be used to find dso file path,
and we can validate if a branch address falls into the range of map's
start and end addresses.
In addition, the map's start address can be used as an offset for
disassembly.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Grant <al.grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Eelco Chaudron <echaudro@redhat.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Tanmay Jagdale <tanmay@marvell.com>
Cc: coresight@lists.linaro.org
Cc: zengshun . wu <zengshun.wu@outlook.com>
Link: https://lore.kernel.org/r/20220521130446.4163597-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
.../util/scripting-engines/trace-event-python.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 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 659eb4e4b34b..adba01b7d9dd 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -755,12 +755,22 @@ static void set_regs_in_dict(PyObject *dict,
}
static void set_sym_in_dict(PyObject *dict, struct addr_location *al,
- const char *dso_field, const char *sym_field,
- const char *symoff_field)
+ const char *dso_field, const char *dso_bid_field,
+ const char *dso_map_start, const char *dso_map_end,
+ const char *sym_field, const char *symoff_field)
{
+ char sbuild_id[SBUILD_ID_SIZE];
+
if (al->map) {
pydict_set_item_string_decref(dict, dso_field,
_PyUnicode_FromString(al->map->dso->name));
+ build_id__sprintf(&al->map->dso->bid, sbuild_id);
+ pydict_set_item_string_decref(dict, dso_bid_field,
+ _PyUnicode_FromString(sbuild_id));
+ pydict_set_item_string_decref(dict, dso_map_start,
+ PyLong_FromUnsignedLong(al->map->start));
+ pydict_set_item_string_decref(dict, dso_map_end,
+ PyLong_FromUnsignedLong(al->map->end));
}
if (al->sym) {
pydict_set_item_string_decref(dict, sym_field,
@@ -840,7 +850,8 @@ static PyObject *get_perf_sample_dict(struct perf_sample *sample,
(const char *)sample->raw_data, sample->raw_size));
pydict_set_item_string_decref(dict, "comm",
_PyUnicode_FromString(thread__comm_str(al->thread)));
- set_sym_in_dict(dict, al, "dso", "symbol", "symoff");
+ set_sym_in_dict(dict, al, "dso", "dso_bid", "dso_map_start", "dso_map_end",
+ "symbol", "symoff");
pydict_set_item_string_decref(dict, "callchain", callchain);
@@ -856,7 +867,9 @@ static PyObject *get_perf_sample_dict(struct perf_sample *sample,
if (addr_al) {
pydict_set_item_string_decref(dict_sample, "addr_correlates_sym",
PyBool_FromLong(1));
- set_sym_in_dict(dict_sample, addr_al, "addr_dso", "addr_symbol", "addr_symoff");
+ set_sym_in_dict(dict_sample, addr_al, "addr_dso", "addr_dso_bid",
+ "addr_dso_map_start", "addr_dso_map_end",
+ "addr_symbol", "addr_symoff");
}
if (sample->flags)
--
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