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/*
* Backtrace debugging
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#ifndef TRACE_H
#define TRACE_H
#define WPA_TRACE_LEN 16
#ifdef WPA_TRACE
#include <execinfo.h>
#include "list.h"
#define WPA_TRACE_INFO void *btrace[WPA_TRACE_LEN]; int btrace_num;
struct wpa_trace_ref {
struct dl_list list;
const void *addr;
WPA_TRACE_INFO
};
#define WPA_TRACE_REF(name) struct wpa_trace_ref wpa_trace_ref_##name
#define wpa_trace_dump(title, ptr) \
wpa_trace_dump_func((title), (ptr)->btrace, (ptr)->btrace_num)
void wpa_trace_dump_func(const char *title, void **btrace, int btrace_num);
#define wpa_trace_record(ptr) \
(ptr)->btrace_num = backtrace((ptr)->btrace, WPA_TRACE_LEN)
void wpa_trace_show(const char *title);
#define wpa_trace_add_ref(ptr, name, addr) \
wpa_trace_add_ref_func(&(ptr)->wpa_trace_ref_##name, (addr))
void wpa_trace_add_ref_func(struct wpa_trace_ref *ref, const void *addr);
#define wpa_trace_remove_ref(ptr, name, addr) \
do { \
if ((addr)) \
dl_list_del(&(ptr)->wpa_trace_ref_##name.list); \
} while (0)
void wpa_trace_check_ref(const void *addr);
#else /* WPA_TRACE */
#define WPA_TRACE_INFO
#define WPA_TRACE_REF(n)
#define wpa_trace_dump(title, ptr) do { } while (0)
#define wpa_trace_record(ptr) do { } while (0)
#define wpa_trace_show(title) do { } while (0)
#define wpa_trace_add_ref(ptr, name, addr) do { } while (0)
#define wpa_trace_remove_ref(ptr, name, addr) do { } while (0)
#define wpa_trace_check_ref(addr) do { } while (0)
#endif /* WPA_TRACE */
#endif /* TRACE_H */
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