1/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_BUG_H
9#define __ASM_AVR32_BUG_H
10
11#ifdef CONFIG_BUG
12
13/*
14 * According to our Chief Architect, this compact opcode is very
15 * unlikely to ever be implemented.
16 */
17#define AVR32_BUG_OPCODE	0x5df0
18
19#ifdef CONFIG_DEBUG_BUGVERBOSE
20
21#define _BUG_OR_WARN(flags)						\
22	asm volatile(							\
23		"1:	.hword	%0\n"					\
24		"	.section __bug_table,\"a\",@progbits\n"		\
25		"2:	.long	1b\n"					\
26		"	.long	%1\n"					\
27		"	.short	%2\n"					\
28		"	.short	%3\n"					\
29		"	.org	2b + %4\n"				\
30		"	.previous"					\
31		:							\
32		: "i"(AVR32_BUG_OPCODE), "i"(__FILE__),			\
33		  "i"(__LINE__), "i"(flags),				\
34		  "i"(sizeof(struct bug_entry)))
35
36#else
37
38#define _BUG_OR_WARN(flags)						\
39	asm volatile(							\
40		"1:	.hword	%0\n"					\
41		"	.section __bug_table,\"a\",@progbits\n"		\
42		"2:	.long	1b\n"					\
43		"	.short	%1\n"					\
44		"	.org	2b + %2\n"				\
45		"	.previous"					\
46		:							\
47		: "i"(AVR32_BUG_OPCODE), "i"(flags),			\
48		  "i"(sizeof(struct bug_entry)))
49
50#endif /* CONFIG_DEBUG_BUGVERBOSE */
51
52#define BUG()								\
53	do {								\
54		_BUG_OR_WARN(0);					\
55		unreachable();						\
56	} while (0)
57
58#define WARN_ON(condition)							\
59	({								\
60		int __ret_warn_on = !!(condition);			\
61		if (unlikely(__ret_warn_on))				\
62			_BUG_OR_WARN(BUGFLAG_WARNING);			\
63		unlikely(__ret_warn_on);				\
64	})
65
66#define HAVE_ARCH_BUG
67#define HAVE_ARCH_WARN_ON
68
69#endif /* CONFIG_BUG */
70
71#include <asm-generic/bug.h>
72
73struct pt_regs;
74void die(const char *str, struct pt_regs *regs, long err);
75void _exception(long signr, struct pt_regs *regs, int code,
76		unsigned long addr);
77
78#endif /* __ASM_AVR32_BUG_H */
79