debug.h

   1 /*
   2  * Copyright 2004-2005 Timo Hirvonen
   3  */
   4
   5 #ifndef DEBUG_H
   6 #define DEBUG_H
   7
   8 #include "compiler.h"
   9 #include "config/debug.h"
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <errno.h>
  14 #include <sys/time.h>
  15 #include <inttypes.h>
  16
  17 void debug_init(void);
  18 void __debug_bug(const char *function, const char *fmt, ...) __FORMAT(2, 3) __NORETURN;
  19 void __debug_print(const char *function, const char *fmt, ...) __FORMAT(2, 3);
  20
  21 /* ------------------------------------------------------------------------ */
  22
  23 #if DEBUG <= 0
  24
  25 #define BUG(...) do { } while (0)
  26
  27 #else /* >0 */
  28
  29 #define BUG(...) __debug_bug(__FUNCTION__, __VA_ARGS__)
  30
  31 #endif
  32
  33 /* ------------------------------------------------------------------------ */
  34
  35 #if DEBUG <= 1
  36
  37 #define d_print(...) do { } while (0)
  38
  39 static inline void timer_get(uint64_t *usec)
  40 {
  41         *usec = 0;
  42 }
  43
  44 static inline void timer_print(const char *what, uint64_t usec)
  45 {
  46 }
  47
  48 #else /* >1 */
  49
  50 #define d_print(...) __debug_print(__FUNCTION__, __VA_ARGS__)
  51
  52 static inline void timer_get(uint64_t *usec)
  53 {
  54         struct timeval tv;
  55
  56         gettimeofday(&tv, NULL);
  57         *usec = tv.tv_sec * 1e6L + tv.tv_usec;
  58 }
  59
  60 static inline void timer_print(const char *what, uint64_t usec)
  61 {
  62         uint64_t a = usec / 1e6;
  63         uint64_t b = usec - a * 1e6;
  64
  65         __debug_print("TIMER", "%s: %11Lu.%06Lu\n", what, a, b);
  66 }
  67
  68 #endif
  69
  70 /* ------------------------------------------------------------------------ */
  71
  72 #define __STR(a) #a
  73
  74 #define BUG_ON(a) \
  75 do { \
  76         if (unlikely(a)) \
  77                 BUG("%s\n", __STR(a)); \
  78 } while (0)
  79
  80 #endif