tools/perf/util/debug.c

   1 /* For general debugging purposes */
   2
   3 #include "../perf.h"
   4
   5 #include <string.h>
   6 #include <stdarg.h>
   7 #include <stdio.h>
   8
   9 #include "color.h"
  10 #include "event.h"
  11 #include "debug.h"
  12
  13 int verbose = 0;
  14 int dump_trace = 0;
  15
  16 int eprintf(int level, const char *fmt, ...)
  17 {
  18         va_list args;
  19         int ret = 0;
  20
  21         if (verbose >= level) {
  22                 va_start(args, fmt);
  23                 ret = vfprintf(stderr, fmt, args);
  24                 va_end(args);
  25         }
  26
  27         return ret;
  28 }
  29
  30 int dump_printf(const char *fmt, ...)
  31 {
  32         va_list args;
  33         int ret = 0;
  34
  35         if (dump_trace) {
  36                 va_start(args, fmt);
  37                 ret = vprintf(fmt, args);
  38                 va_end(args);
  39         }
  40
  41         return ret;
  42 }
  43
  44 static int dump_printf_color(const char *fmt, const char *color, ...)
  45 {
  46         va_list args;
  47         int ret = 0;
  48
  49         if (dump_trace) {
  50                 va_start(args, color);
  51                 ret = color_vfprintf(stdout, color, fmt, args);
  52                 va_end(args);
  53         }
  54
  55         return ret;
  56 }
  57
  58
  59 void trace_event(event_t *event)
  60 {
  61         unsigned char *raw_event = (void *)event;
  62         const char *color = PERF_COLOR_BLUE;
  63         int i, j;
  64
  65         if (!dump_trace)
  66                 return;
  67
  68         dump_printf(".");
  69         dump_printf_color("\n. ... raw event: size %d bytes\n", color,
  70                           event->header.size);
  71
  72         for (i = 0; i < event->header.size; i++) {
  73                 if ((i & 15) == 0) {
  74                         dump_printf(".");
  75                         dump_printf_color("  %04x: ", color, i);
  76                 }
  77
  78                 dump_printf_color(" %02x", color, raw_event[i]);
  79
  80                 if (((i & 15) == 15) || i == event->header.size-1) {
  81                         dump_printf_color("  ", color);
  82                         for (j = 0; j < 15-(i & 15); j++)
  83                                 dump_printf_color("   ", color);
  84                         for (j = 0; j < (i & 15); j++) {
  85                                 if (isprint(raw_event[i-15+j]))
  86                                         dump_printf_color("%c", color,
  87                                                           raw_event[i-15+j]);
  88                                 else
  89                                         dump_printf_color(".", color);
  90                         }
  91                         dump_printf_color("\n", color);
  92                 }
  93         }
  94         dump_printf(".\n");
  95 }