bug.h (f13d52cb3fad03c237572be2ee691e1fe2d1d7bb) bug.h (19d436268dde95389c616bb3819da73f0a8b28a8)
1/*
2 * Copyright (C) 2015 ARM Limited
3 * Author: Dave Martin <Dave.Martin@arm.com>
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 *

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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef _ARCH_ARM64_ASM_BUG_H
19#define _ARCH_ARM64_ASM_BUG_H
20
21#include <asm/brk-imm.h>
22
1/*
2 * Copyright (C) 2015 ARM Limited
3 * Author: Dave Martin <Dave.Martin@arm.com>
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 *

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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef _ARCH_ARM64_ASM_BUG_H
19#define _ARCH_ARM64_ASM_BUG_H
20
21#include <asm/brk-imm.h>
22
23#ifdef CONFIG_GENERIC_BUG
24#define HAVE_ARCH_BUG
25
23#ifdef CONFIG_DEBUG_BUGVERBOSE
24#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
25#define __BUGVERBOSE_LOCATION(file, line) \
26 ".pushsection .rodata.str,\"aMS\",@progbits,1\n" \
27 "2: .string \"" file "\"\n\t" \
28 ".popsection\n\t" \
29 \
30 ".long 2b - 0b\n\t" \
31 ".short " #line "\n\t"
32#else
33#define _BUGVERBOSE_LOCATION(file, line)
34#endif
35
26#ifdef CONFIG_DEBUG_BUGVERBOSE
27#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
28#define __BUGVERBOSE_LOCATION(file, line) \
29 ".pushsection .rodata.str,\"aMS\",@progbits,1\n" \
30 "2: .string \"" file "\"\n\t" \
31 ".popsection\n\t" \
32 \
33 ".long 2b - 0b\n\t" \
34 ".short " #line "\n\t"
35#else
36#define _BUGVERBOSE_LOCATION(file, line)
37#endif
38
36#ifdef CONFIG_GENERIC_BUG
39#define _BUG_FLAGS(flags) __BUG_FLAGS(flags)
37
40
38#define __BUG_ENTRY(flags) \
41#define __BUG_FLAGS(flags) asm volatile ( \
39 ".pushsection __bug_table,\"a\"\n\t" \
40 ".align 2\n\t" \
41 "0: .long 1f - 0b\n\t" \
42_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
43 ".short " #flags "\n\t" \
44 ".popsection\n" \
42 ".pushsection __bug_table,\"a\"\n\t" \
43 ".align 2\n\t" \
44 "0: .long 1f - 0b\n\t" \
45_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
46 ".short " #flags "\n\t" \
47 ".popsection\n" \
45 "1: "
46#else
47#define __BUG_ENTRY(flags) ""
48#endif
48 \
49 "1: brk %[imm]" \
50 :: [imm] "i" (BUG_BRK_IMM) \
51)
49
52
50#define __BUG_FLAGS(flags) \
51 asm volatile ( \
52 __BUG_ENTRY(flags) \
53 "brk %[imm]" :: [imm] "i" (BUG_BRK_IMM) \
54 );
55
56
57#define BUG() do { \
58 __BUG_FLAGS(0); \
59 unreachable(); \
53#define BUG() do { \
54 _BUG_FLAGS(0); \
55 unreachable(); \
60} while (0)
61
56} while (0)
57
62#define __WARN_TAINT(taint) \
63 __BUG_FLAGS(BUGFLAG_TAINT(taint))
58#define __WARN_FLAGS(flags) _BUG_FLAGS(BUGFLAG_WARNING|(flags))
64
59
65#define HAVE_ARCH_BUG
60#endif /* ! CONFIG_GENERIC_BUG */
66
67#include <asm-generic/bug.h>
68
69#endif /* ! _ARCH_ARM64_ASM_BUG_H */
61
62#include <asm-generic/bug.h>
63
64#endif /* ! _ARCH_ARM64_ASM_BUG_H */