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perf tools: Make binary data printer code in trace_event public available

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Move code printing binray data from trace_event() to utils.c and allows
passing different printer. Further commits will use this logic to print
bpf output event.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456312845-111583-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Wang Nan 2016-02-24 11:20:44 +00:00 • committed by Arnaldo Carvalho de Melo
parent c19ac91245
commit c339b1a90e
3 changed files with 105 additions and 27 deletions
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75
tools/perf/util/debug.c
View file

@ -106,40 +106,61 @@ int dump_printf(const char *fmt, ...)
return ret;
}
static void trace_event_printer(enum binary_printer_ops op,
unsigned int val, void *extra)
{
const char *color = PERF_COLOR_BLUE;
union perf_event *event = (union perf_event *)extra;
unsigned char ch = (unsigned char)val;
switch (op) {
case BINARY_PRINT_DATA_BEGIN:
printf(".");
color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
event->header.size);
break;
case BINARY_PRINT_LINE_BEGIN:
printf(".");
break;
case BINARY_PRINT_ADDR:
color_fprintf(stdout, color, " %04x: ", val);
break;
case BINARY_PRINT_NUM_DATA:
color_fprintf(stdout, color, " %02x", val);
break;
case BINARY_PRINT_NUM_PAD:
color_fprintf(stdout, color, " ");
break;
case BINARY_PRINT_SEP:
color_fprintf(stdout, color, " ");
break;
case BINARY_PRINT_CHAR_DATA:
color_fprintf(stdout, color, "%c",
isprint(ch) ? ch : '.');
break;
case BINARY_PRINT_CHAR_PAD:
color_fprintf(stdout, color, " ");
break;
case BINARY_PRINT_LINE_END:
color_fprintf(stdout, color, "\n");
break;
case BINARY_PRINT_DATA_END:
printf("\n");
break;
default:
break;
}
}
void trace_event(union perf_event *event)
{
unsigned char *raw_event = (void *)event;
const char *color = PERF_COLOR_BLUE;
int i, j;
if (!dump_trace)
return;
printf(".");
color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
event->header.size);
for (i = 0; i < event->header.size; i++) {
if ((i & 15) == 0) {
printf(".");
color_fprintf(stdout, color, " %04x: ", i);
}
color_fprintf(stdout, color, " %02x", raw_event[i]);
if (((i & 15) == 15) || i == event->header.size-1) {
color_fprintf(stdout, color, " ");
for (j = 0; j < 15-(i & 15); j++)
color_fprintf(stdout, color, " ");
for (j = i & ~15; j <= i; j++) {
color_fprintf(stdout, color, "%c",
isprint(raw_event[j]) ?
raw_event[j] : '.');
}
color_fprintf(stdout, color, "\n");
}
}
printf(".\n");
print_binary(raw_event, event->header.size, 16,
trace_event_printer, event);
}
static struct debug_variable {