1/*
2 * Copyright (c) 2014 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24#ifndef __XASSERT_H__
25#define __XASSERT_H__
26
27/* Rewrap the traditional assert so that we can capture the error message
28 * via Xorg.0.log
29 */
30
31#include <assert.h>
32
33#ifndef NDEBUG
34#include <os.h>
35#include "compiler.h"
36
37#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(1,6,0,0,0)
38#define xorg_backtrace()
39#endif
40
41#undef assert
42#define assert(E) do if (unlikely(!(E))) { \
43	xorg_backtrace(); \
44	FatalError("%s:%d assertion '%s' failed\n", __func__, __LINE__, #E); \
45} while (0)
46
47#define warn_unless(E) \
48({ \
49	bool fail = !(E); \
50	if (unlikely(fail)) { \
51		static int __warn_once__; \
52		if (!__warn_once__) { \
53			xorg_backtrace(); \
54			ErrorF("%s:%d assertion '%s' failed\n", __func__, __LINE__, #E); \
55			__warn_once__ = 1; \
56		} \
57	} \
58	unlikely(fail); \
59})
60
61#define dbg(EXPR) EXPR
62
63#else
64
65#define warn_unless(E) ({ bool fail = !(E); unlikely(fail); })
66#define dbg(EXPR)
67
68#endif
69
70#endif /* __XASSERT_H__ */
71