trace.h revision ff787d557db719adea0fdf2679667500c65cf74d 
1/*
2 * Backtrace debugging
3 * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9#ifndef TRACE_H
10#define TRACE_H
11
12#define WPA_TRACE_LEN 16
13
14#ifdef WPA_TRACE
15#include <execinfo.h>
16
17#include "list.h"
18
19#define WPA_TRACE_INFO void *btrace[WPA_TRACE_LEN]; int btrace_num;
20
21struct wpa_trace_ref {
22	struct dl_list list;
23	const void *addr;
24	WPA_TRACE_INFO
25};
26#define WPA_TRACE_REF(name) struct wpa_trace_ref wpa_trace_ref_##name
27
28#define wpa_trace_dump(title, ptr) \
29	wpa_trace_dump_func((title), (ptr)->btrace, (ptr)->btrace_num)
30void wpa_trace_dump_func(const char *title, void **btrace, int btrace_num);
31#define wpa_trace_record(ptr) \
32	(ptr)->btrace_num = backtrace((ptr)->btrace, WPA_TRACE_LEN)
33void wpa_trace_show(const char *title);
34#define wpa_trace_add_ref(ptr, name, addr) \
35	wpa_trace_add_ref_func(&(ptr)->wpa_trace_ref_##name, (addr))
36void wpa_trace_add_ref_func(struct wpa_trace_ref *ref, const void *addr);
37#define wpa_trace_remove_ref(ptr, name, addr)	\
38	do { \
39		if ((addr)) \
40			dl_list_del(&(ptr)->wpa_trace_ref_##name.list); \
41	} while (0)
42void wpa_trace_check_ref(const void *addr);
43size_t wpa_trace_calling_func(const char *buf[], size_t len);
44
45#else /* WPA_TRACE */
46
47#define WPA_TRACE_INFO
48#define WPA_TRACE_REF(n)
49#define wpa_trace_dump(title, ptr) do { } while (0)
50#define wpa_trace_record(ptr) do { } while (0)
51#define wpa_trace_show(title) do { } while (0)
52#define wpa_trace_add_ref(ptr, name, addr) do { } while (0)
53#define wpa_trace_remove_ref(ptr, name, addr) do { } while (0)
54#define wpa_trace_check_ref(addr) do { } while (0)
55
56#endif /* WPA_TRACE */
57
58
59#ifdef WPA_TRACE_BFD
60
61void wpa_trace_dump_funcname(const char *title, void *pc);
62
63#else /* WPA_TRACE_BFD */
64
65#define wpa_trace_dump_funcname(title, pc) do { } while (0)
66
67#endif /* WPA_TRACE_BFD */
68
69#endif /* TRACE_H */
70