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>

diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 659eb4e..adba01b 100644 (file)
--- 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)