workbench/network/WirelessManager/src/utils/trace.h

   1 /*
   2  * Backtrace debugging
   3  * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef TRACE_H
  16 #define TRACE_H
  17
  18 #define WPA_TRACE_LEN 16
  19
  20 #ifdef WPA_TRACE
  21 #include <execinfo.h>
  22
  23 #include "list.h"
  24
  25 #define WPA_TRACE_INFO void *btrace[WPA_TRACE_LEN]; int btrace_num;
  26
  27 struct wpa_trace_ref {
  28         struct dl_list list;
  29         const void *addr;
  30         WPA_TRACE_INFO
  31 };
  32 #define WPA_TRACE_REF(name) struct wpa_trace_ref wpa_trace_ref_##name
  33
  34 #define wpa_trace_dump(title, ptr) \
  35         wpa_trace_dump_func((title), (ptr)->btrace, (ptr)->btrace_num)
  36 void wpa_trace_dump_func(const char *title, void **btrace, int btrace_num);
  37 #define wpa_trace_record(ptr) \
  38         (ptr)->btrace_num = backtrace((ptr)->btrace, WPA_TRACE_LEN)
  39 void wpa_trace_show(const char *title);
  40 #define wpa_trace_add_ref(ptr, name, addr) \
  41         wpa_trace_add_ref_func(&(ptr)->wpa_trace_ref_##name, (addr))
  42 void wpa_trace_add_ref_func(struct wpa_trace_ref *ref, const void *addr);
  43 #define wpa_trace_remove_ref(ptr, name, addr)   \
  44         do { \
  45                 if ((addr)) \
  46                         dl_list_del(&(ptr)->wpa_trace_ref_##name.list); \
  47         } while (0)
  48 void wpa_trace_check_ref(const void *addr);
  49
  50 #else /* WPA_TRACE */
  51
  52 #define WPA_TRACE_INFO
  53 #define WPA_TRACE_REF(n)
  54 #define wpa_trace_dump(title, ptr) do { } while (0)
  55 #define wpa_trace_record(ptr) do { } while (0)
  56 #define wpa_trace_show(title) do { } while (0)
  57 #define wpa_trace_add_ref(ptr, name, addr) do { } while (0)
  58 #define wpa_trace_remove_ref(ptr, name, addr) do { } while (0)
  59 #define wpa_trace_check_ref(addr) do { } while (0)
  60
  61 #endif /* WPA_TRACE */
  62
  63
  64 #ifdef WPA_TRACE_BFD
  65
  66 void wpa_trace_dump_funcname(const char *title, void *pc);
  67
  68 #else /* WPA_TRACE_BFD */
  69
  70 #define wpa_trace_dump_funcname(title, pc) do { } while (0)
  71
  72 #endif /* WPA_TRACE_BFD */
  73
  74 #endif /* TRACE_H */