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 #include "util.h"
  13
  14 int verbose = 0;
  15 int dump_trace = 0;
  16
  17 int eprintf(int level, const char *fmt, ...)
  18 {
  19         va_list args;
  20         int ret = 0;
  21
  22         if (verbose >= level) {
  23                 va_start(args, fmt);
  24                 ret = vfprintf(stderr, fmt, args);
  25                 va_end(args);
  26         }
  27
  28         return ret;
  29 }
  30
  31 int dump_printf(const char *fmt, ...)
  32 {
  33         va_list args;
  34         int ret = 0;
  35
  36         if (dump_trace) {
  37                 va_start(args, fmt);
  38                 ret = vprintf(fmt, args);
  39                 va_end(args);
  40         }
  41
  42         return ret;
  43 }
  44
  45 static int dump_printf_color(const char *fmt, const char *color, ...)
  46 {
  47         va_list args;
  48         int ret = 0;
  49
  50         if (dump_trace) {
  51                 va_start(args, color);
  52                 ret = color_vfprintf(stdout, color, fmt, args);
  53                 va_end(args);
  54         }
  55
  56         return ret;
  57 }
  58
  59
  60 void trace_event(event_t *event)
  61 {
  62         unsigned char *raw_event = (void *)event;
  63         const char *color = PERF_COLOR_BLUE;
  64         int i, j;
  65
  66         if (!dump_trace)
  67                 return;
  68
  69         dump_printf(".");
  70         dump_printf_color("\n. ... raw event: size %d bytes\n", color,
  71                           event->header.size);
  72
  73         for (i = 0; i < event->header.size; i++) {
  74                 if ((i & 15) == 0) {
  75                         dump_printf(".");
  76                         dump_printf_color("  %04x: ", color, i);
  77                 }
  78
  79                 dump_printf_color(" %02x", color, raw_event[i]);
  80
  81                 if (((i & 15) == 15) || i == event->header.size-1) {
  82                         dump_printf_color("  ", color);
  83                         for (j = 0; j < 15-(i & 15); j++)
  84                                 dump_printf_color("   ", color);
  85                         for (j = 0; j < (i & 15); j++) {
  86                                 if (isprint(raw_event[i-15+j]))
  87                                         dump_printf_color("%c", color,
  88                                                           raw_event[i-15+j]);
  89                                 else
  90                                         dump_printf_color(".", color);
  91                         }
  92                         dump_printf_color("\n", color);
  93                 }
  94         }
  95         dump_printf(".\n");
  96 }