mirror of
https://github.com/torvalds/linux
synced 2024-09-27 23:10:58 +00:00
84c104ad42
The loop counter math in trace_event was much more complicated than necessary, resulting in incorrectly decoding the human-readable portion of the partial last line of hexdump in "perf trace -D" output: . 0020: 00 00 00 00 00 00 00 00 2f 73 62 69 6e 2f 69 6e ......../sbin/i . 0030: 69 74 00 00 00 00 00 00 /sbin/i With this fixed (and simpler!) code, we get the correct output: . 0020: 00 00 00 00 00 00 00 00 2f 73 62 69 6e 2f 69 6e ......../sbin/in . 0030: 69 74 00 00 00 00 00 00 it...... Cc: Ingo Molnar <mingo@elte.hu> LPU-Reference: <20100612024404.GA24469@hexapodia.org> Signed-off-by: Andy Isaacson <adi@hexapodia.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
99 lines
1.7 KiB
C
99 lines
1.7 KiB
C
/* For general debugging purposes */
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#include "../perf.h"
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "cache.h"
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#include "color.h"
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#include "event.h"
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#include "debug.h"
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#include "util.h"
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int verbose = 0;
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bool dump_trace = false;
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int eprintf(int level, const char *fmt, ...)
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{
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va_list args;
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int ret = 0;
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if (verbose >= level) {
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va_start(args, fmt);
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if (use_browser > 0)
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ret = browser__show_help(fmt, args);
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else
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ret = vfprintf(stderr, fmt, args);
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va_end(args);
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}
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return ret;
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}
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int dump_printf(const char *fmt, ...)
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{
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va_list args;
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int ret = 0;
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if (dump_trace) {
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va_start(args, fmt);
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ret = vprintf(fmt, args);
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va_end(args);
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}
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return ret;
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}
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static int dump_printf_color(const char *fmt, const char *color, ...)
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{
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va_list args;
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int ret = 0;
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if (dump_trace) {
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va_start(args, color);
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ret = color_vfprintf(stdout, color, fmt, args);
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va_end(args);
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}
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return ret;
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}
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void trace_event(event_t *event)
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{
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unsigned char *raw_event = (void *)event;
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const char *color = PERF_COLOR_BLUE;
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int i, j;
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if (!dump_trace)
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return;
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dump_printf(".");
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dump_printf_color("\n. ... raw event: size %d bytes\n", color,
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event->header.size);
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for (i = 0; i < event->header.size; i++) {
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if ((i & 15) == 0) {
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dump_printf(".");
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dump_printf_color(" %04x: ", color, i);
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}
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dump_printf_color(" %02x", color, raw_event[i]);
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if (((i & 15) == 15) || i == event->header.size-1) {
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dump_printf_color(" ", color);
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for (j = 0; j < 15-(i & 15); j++)
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dump_printf_color(" ", color);
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for (j = i & ~15; j <= i; j++) {
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dump_printf_color("%c", color,
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isprint(raw_event[j]) ?
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raw_event[j] : '.');
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}
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dump_printf_color("\n", color);
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}
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}
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dump_printf(".\n");
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}
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