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 27struct 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) 36void 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) 39void 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)) 42void 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) 48void 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 66void 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 */ 75