[PATCH V7 15/15] perf script: Show text poke address symbol
From: Adrian Hunter
Date: Tue May 12 2020 - 08:20:10 EST
It is generally more useful to show the symbol with an address. In this
case, the print function requires the 'machine' which means changing
callers to provide it as a parameter. It is optional because most events
do not need it and the callers that matter can provide it.
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
tools/perf/builtin-script.c | 4 ++--
tools/perf/tests/perf-record.c | 4 ++--
tools/perf/util/event.c | 23 ++++++++++++++++++-----
tools/perf/util/event.h | 6 ++++--
tools/perf/util/intel-pt.c | 2 +-
tools/perf/util/machine.c | 2 +-
6 files changed, 28 insertions(+), 13 deletions(-)
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 35ed8f69ed6a..5bdd1a393399 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2170,7 +2170,7 @@ static int print_event_with_time(struct perf_tool *tool,
event->header.type, stdout);
}
- perf_event__fprintf(event, stdout);
+ perf_event__fprintf(machine, event, stdout);
thread__put(thread);
@@ -2305,7 +2305,7 @@ process_finished_round_event(struct perf_tool *tool __maybe_unused,
struct ordered_events *oe __maybe_unused)
{
- perf_event__fprintf(event, stdout);
+ perf_event__fprintf(NULL, event, stdout);
return 0;
}
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 83adfd846ccd..ff6febf15269 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -185,14 +185,14 @@ int test__PERF_RECORD(struct test *test __maybe_unused, int subtest __maybe_unus
err = perf_evlist__parse_sample(evlist, event, &sample);
if (err < 0) {
if (verbose > 0)
- perf_event__fprintf(event, stderr);
+ perf_event__fprintf(NULL, event, stderr);
pr_debug("Couldn't parse sample\n");
goto out_delete_evlist;
}
if (verbose > 0) {
pr_info("%" PRIu64" %d ", sample.time, sample.cpu);
- perf_event__fprintf(event, stderr);
+ perf_event__fprintf(NULL, event, stderr);
}
if (prev_time > sample.time) {
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index dde2f0147713..4b60cd57ad62 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -440,14 +440,26 @@ static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
}
}
-size_t perf_event__fprintf_text_poke(union perf_event *event, FILE *fp)
+size_t perf_event__fprintf_text_poke(struct machine *machine,
+ union perf_event *event, FILE *fp)
{
struct perf_record_text_poke_event *tp = &event->text_poke;
size_t ret;
bool old;
- ret = fprintf(fp, " %" PRI_lx64 " old len %u new len %u\n",
- tp->addr, tp->old_len, tp->new_len);
+ ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
+ if (machine) {
+ struct addr_location al;
+
+ al.map = maps__find(&machine->kmaps, tp->addr);
+ if (al.map && map__load(al.map) >= 0) {
+ al.addr = al.map->map_ip(al.map, tp->addr);
+ al.sym = map__find_symbol(al.map, al.addr);
+ if (al.sym)
+ ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
+ }
+ }
+ ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
old = true;
ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
&old, fp);
@@ -457,7 +469,8 @@ size_t perf_event__fprintf_text_poke(union perf_event *event, FILE *fp)
return ret;
}
-size_t perf_event__fprintf(union perf_event *event, FILE *fp)
+size_t perf_event__fprintf(struct machine *machine, union perf_event *event,
+ FILE *fp)
{
size_t ret = fprintf(fp, "PERF_RECORD_%s",
perf_event__name(event->header.type));
@@ -502,7 +515,7 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp)
ret += perf_event__fprintf_bpf(event, fp);
break;
case PERF_RECORD_TEXT_POKE:
- ret += perf_event__fprintf_text_poke(event, fp);
+ ret += perf_event__fprintf_text_poke(machine, event, fp);
break;
default:
ret += fprintf(fp, "\n");
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index dbbba6dea51d..611c8e5ad9d9 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -389,8 +389,10 @@ size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp);
-size_t perf_event__fprintf_text_poke(union perf_event *event, FILE *fp);
-size_t perf_event__fprintf(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_text_poke(struct machine *machine,
+ union perf_event *event, FILE *fp);
+size_t perf_event__fprintf(struct machine *machine, union perf_event *event,
+ FILE *fp);
int kallsyms__get_function_start(const char *kallsyms_filename,
const char *symbol_name, u64 *addr);
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index e2e199a58222..4c6bb45d8200 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -236,7 +236,7 @@ static void intel_pt_log_event(union perf_event *event)
if (!intel_pt_enable_logging || !f)
return;
- perf_event__fprintf(event, f);
+ perf_event__fprintf(NULL, event, f);
}
static void intel_pt_dump_sample(struct perf_session *session,
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 9120d7dc274f..5f52b579b3fe 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -821,7 +821,7 @@ int machine__process_text_poke(struct machine *machine, union perf_event *event,
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
if (dump_trace)
- perf_event__fprintf_text_poke(event, stdout);
+ perf_event__fprintf_text_poke(machine, event, stdout);
if (!event->text_poke.new_len)
return 0;
--
2.17.1