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perf intel-pt: Add more event information to debug log 

More event information is useful for debugging, especially MMAP events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/20181105073505.8129-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2018-11-05 09:35:04 +02:00 committed by Arnaldo Carvalho de Melo
parent 35fa1cee21
commit 93f8be2799
3 changed files with 19 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
tools/perf/util/intel-pt-decoder/intel-pt-log.c
View File

@ -31,6 +31,11 @@ static FILE *f;
static char log_name[MAX_LOG_NAME];
bool intel_pt_enable_logging;
void *intel_pt_log_fp(void)
{
return f;
}
void intel_pt_log_enable(void)
{
intel_pt_enable_logging = true;

1
tools/perf/util/intel-pt-decoder/intel-pt-log.h
View File

@ -22,6 +22,7 @@
struct intel_pt_pkt;
void *intel_pt_log_fp(void);
void intel_pt_log_enable(void);
void intel_pt_log_disable(void);
void intel_pt_log_set_name(const char *name);

16
tools/perf/util/intel-pt.c
View File

@ -206,6 +206,16 @@ static void intel_pt_dump_event(struct intel_pt *pt, unsigned char *buf,
intel_pt_dump(pt, buf, len);
}
static void intel_pt_log_event(union perf_event *event)
{
FILE *f = intel_pt_log_fp();
if (!intel_pt_enable_logging || !f)
return;
perf_event__fprintf(event, f);
}
static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *a,
struct auxtrace_buffer *b)
{
@ -2010,9 +2020,9 @@ static int intel_pt_process_event(struct perf_session *session,
event->header.type == PERF_RECORD_SWITCH_CPU_WIDE)
err = intel_pt_context_switch(pt, event, sample);
intel_pt_log("event %s (%u): cpu %d time %"PRIu64" tsc %#"PRIx64"\n",
perf_event__name(event->header.type), event->header.type,
sample->cpu, sample->time, timestamp);
intel_pt_log("event %u: cpu %d time %"PRIu64" tsc %#"PRIx64" ",
event->header.type, sample->cpu, sample->time, timestamp);
intel_pt_log_event(event);
return err;
}