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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 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
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 | ||
f98deee9 | 21 | #include <asm/brk-imm.h> |
9fb7410f DM |
22 | |
23 | #ifdef CONFIG_GENERIC_BUG | |
24 | #define HAVE_ARCH_BUG | |
25 | ||
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 | ||
39 | #define _BUG_FLAGS(flags) __BUG_FLAGS(flags) | |
40 | ||
41 | #define __BUG_FLAGS(flags) asm volatile ( \ | |
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" \ | |
48 | \ | |
49 | "1: brk %[imm]" \ | |
50 | :: [imm] "i" (BUG_BRK_IMM) \ | |
51 | ) | |
52 | ||
53 | #define BUG() do { \ | |
54 | _BUG_FLAGS(0); \ | |
55 | unreachable(); \ | |
56 | } while (0) | |
57 | ||
19d43626 | 58 | #define __WARN_FLAGS(flags) _BUG_FLAGS(BUGFLAG_WARNING|(flags)) |
9fb7410f DM |
59 | |
60 | #endif /* ! CONFIG_GENERIC_BUG */ | |
61 | ||
62 | #include <asm-generic/bug.h> | |
63 | ||
64 | #endif /* ! _ARCH_ARM64_ASM_BUG_H */ |