perf report: Print out raw events in hexa
Print out events in hexa dump format, when -D is specified:
0x4868 [0x48]: event: 1
.
. ... raw event: size 72 bytes
. 0000: 01 00 00 00 00 00 48 00 d4 72 00 00 d4 72 00 00 ......H..r...r.
. 0010: 00 00 40 f2 3e 00 00 00 00 30 01 00 00 00 00 00 ..@.>....0.....
. 0020: 00 00 00 00 00 00 00 00 2f 75 73 72 2f 6c 69 62 ......../usr/li
. 0030: 36 34 2f 6c 69 62 65 6c 66 2d 30 2e 31 34 31 2e 64/libelf-0.141
. 0040: 73 6f 00 00 00 00 00 00 f-0.141
.
0x4868 [0x48]: PERF_EVENT_MMAP 29396: [0x3ef2400000(0x13000) @ (nil)]: /usr/lib64/libelf-0.141.so
This helps the debugging of mis-parsing of data files, and helps
the addition of new sample/trace formats.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 82fa93b..37515da 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1095,9 +1095,43 @@
return 0;
}
+static void trace_event(event_t *event)
+{
+ unsigned char *raw_event = (void *)event;
+ int i, j;
+
+ if (!dump_trace)
+ return;
+
+ dprintf(".\n. ... raw event: size %d bytes\n", event->header.size);
+
+ for (i = 0; i < event->header.size; i++) {
+ if ((i & 15) == 0)
+ dprintf(". %04x: ", i);
+
+ dprintf(" %02x", raw_event[i]);
+
+ if (((i & 15) == 15) || i == event->header.size-1) {
+ dprintf(" ");
+ for (j = 0; j < 15-(i & 15); j++)
+ dprintf(" ");
+ for (j = 0; j < (i & 15); j++) {
+ if (isprint(raw_event[i-15+j]))
+ dprintf("%c", raw_event[i-15+j]);
+ else
+ dprintf(".");
+ }
+ dprintf("\n");
+ }
+ }
+ dprintf(".\n");
+}
+
static int
process_event(event_t *event, unsigned long offset, unsigned long head)
{
+ trace_event(event);
+
if (event->header.misc & PERF_EVENT_MISC_OVERFLOW)
return process_overflow_event(event, offset, head);
@@ -1204,7 +1238,7 @@
size = event->header.size;
- dprintf("%p [%p]: event: %d\n",
+ dprintf("\n%p [%p]: event: %d\n",
(void *)(offset + head),
(void *)(long)event->header.size,
event->header.type);