Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
21#include <asm/brk-imm.h>
22
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
36#ifdef CONFIG_GENERIC_BUG
37
38#define __BUG_ENTRY(flags) \
39 ".pushsection __bug_table,\"aw\"\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" \
45 "1: "
46#else
47#define __BUG_ENTRY(flags) ""
48#endif
49
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(); \
60} while (0)
61
62#define __WARN_FLAGS(flags) __BUG_FLAGS(BUGFLAG_WARNING|(flags))
63
64#define HAVE_ARCH_BUG
65
66#include <asm-generic/bug.h>
67
68#endif /* ! _ARCH_ARM64_ASM_BUG_H */