Commit c339b1a9 authored by Wang Nan's avatar Wang Nan Committed by Arnaldo Carvalho de Melo

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

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: default avatarWang 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.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c19ac912
...@@ -106,40 +106,61 @@ int dump_printf(const char *fmt, ...) ...@@ -106,40 +106,61 @@ int dump_printf(const char *fmt, ...)
return ret; return ret;
} }
void trace_event(union perf_event *event) static void trace_event_printer(enum binary_printer_ops op,
unsigned int val, void *extra)
{ {
unsigned char *raw_event = (void *)event;
const char *color = PERF_COLOR_BLUE; const char *color = PERF_COLOR_BLUE;
int i, j; union perf_event *event = (union perf_event *)extra;
unsigned char ch = (unsigned char)val;
if (!dump_trace)
return;
switch (op) {
case BINARY_PRINT_DATA_BEGIN:
printf("."); printf(".");
color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n", color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
event->header.size); event->header.size);
break;
for (i = 0; i < event->header.size; i++) { case BINARY_PRINT_LINE_BEGIN:
if ((i & 15) == 0) {
printf("."); printf(".");
color_fprintf(stdout, color, " %04x: ", i); break;
} case BINARY_PRINT_ADDR:
color_fprintf(stdout, color, " %04x: ", val);
color_fprintf(stdout, color, " %02x", raw_event[i]); break;
case BINARY_PRINT_NUM_DATA:
if (((i & 15) == 15) || i == event->header.size-1) { color_fprintf(stdout, color, " %02x", val);
break;
case BINARY_PRINT_NUM_PAD:
color_fprintf(stdout, color, " "); color_fprintf(stdout, color, " ");
for (j = 0; j < 15-(i & 15); j++) break;
case BINARY_PRINT_SEP:
color_fprintf(stdout, color, " "); color_fprintf(stdout, color, " ");
for (j = i & ~15; j <= i; j++) { break;
case BINARY_PRINT_CHAR_DATA:
color_fprintf(stdout, color, "%c", color_fprintf(stdout, color, "%c",
isprint(raw_event[j]) ? isprint(ch) ? ch : '.');
raw_event[j] : '.'); break;
} case BINARY_PRINT_CHAR_PAD:
color_fprintf(stdout, color, " ");
break;
case BINARY_PRINT_LINE_END:
color_fprintf(stdout, color, "\n"); color_fprintf(stdout, color, "\n");
break;
case BINARY_PRINT_DATA_END:
printf("\n");
break;
default:
break;
} }
} }
printf(".\n");
void trace_event(union perf_event *event)
{
unsigned char *raw_event = (void *)event;
if (!dump_trace)
return;
print_binary(raw_event, event->header.size, 16,
trace_event_printer, event);
} }
static struct debug_variable { static struct debug_variable {
......
...@@ -14,6 +14,7 @@ ...@@ -14,6 +14,7 @@
#include <limits.h> #include <limits.h>
#include <byteswap.h> #include <byteswap.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/log2.h>
#include <unistd.h> #include <unistd.h>
#include "callchain.h" #include "callchain.h"
#include "strlist.h" #include "strlist.h"
...@@ -670,3 +671,39 @@ int fetch_current_timestamp(char *buf, size_t sz) ...@@ -670,3 +671,39 @@ int fetch_current_timestamp(char *buf, size_t sz)
return 0; return 0;
} }
void print_binary(unsigned char *data, size_t len,
size_t bytes_per_line, print_binary_t printer,
void *extra)
{
size_t i, j, mask;
if (!printer)
return;
bytes_per_line = roundup_pow_of_two(bytes_per_line);
mask = bytes_per_line - 1;
printer(BINARY_PRINT_DATA_BEGIN, 0, extra);
for (i = 0; i < len; i++) {
if ((i & mask) == 0) {
printer(BINARY_PRINT_LINE_BEGIN, -1, extra);
printer(BINARY_PRINT_ADDR, i, extra);
}
printer(BINARY_PRINT_NUM_DATA, data[i], extra);
if (((i & mask) == mask) || i == len - 1) {
for (j = 0; j < mask-(i & mask); j++)
printer(BINARY_PRINT_NUM_PAD, -1, extra);
printer(BINARY_PRINT_SEP, i, extra);
for (j = i & ~mask; j <= i; j++)
printer(BINARY_PRINT_CHAR_DATA, data[j], extra);
for (j = 0; j < mask-(i & mask); j++)
printer(BINARY_PRINT_CHAR_PAD, i, extra);
printer(BINARY_PRINT_LINE_END, -1, extra);
}
}
printer(BINARY_PRINT_DATA_END, -1, extra);
}
...@@ -345,4 +345,24 @@ const char *perf_tip(const char *dirpath); ...@@ -345,4 +345,24 @@ const char *perf_tip(const char *dirpath);
bool is_regular_file(const char *file); bool is_regular_file(const char *file);
int fetch_current_timestamp(char *buf, size_t sz); int fetch_current_timestamp(char *buf, size_t sz);
enum binary_printer_ops {
BINARY_PRINT_DATA_BEGIN,
BINARY_PRINT_LINE_BEGIN,
BINARY_PRINT_ADDR,
BINARY_PRINT_NUM_DATA,
BINARY_PRINT_NUM_PAD,
BINARY_PRINT_SEP,
BINARY_PRINT_CHAR_DATA,
BINARY_PRINT_CHAR_PAD,
BINARY_PRINT_LINE_END,
BINARY_PRINT_DATA_END,
};
typedef void (*print_binary_t)(enum binary_printer_ops,
unsigned int val,
void *extra);
void print_binary(unsigned char *data, size_t len,
size_t bytes_per_line, print_binary_t printer,
void *extra);
#endif /* GIT_COMPAT_UTIL_H */ #endif /* GIT_COMPAT_UTIL_H */
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