mirror of
https://github.com/torvalds/linux
synced 2024-10-22 03:09:41 +00:00
f98deee9a9
Instead of reversing the header dependency between asm/bug.h and asm/debug-monitors.h, split off the brk instruction immediate value defines into a new header asm/brk-imm.h, and include it from both. This solves the circular dependency issue that prevents BUG() from being used in some header files, and keeps the definitions together. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2015 ARM Limited
|
|
* Author: Dave Martin <Dave.Martin@arm.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _ARCH_ARM64_ASM_BUG_H
|
|
#define _ARCH_ARM64_ASM_BUG_H
|
|
|
|
#include <asm/brk-imm.h>
|
|
|
|
#ifdef CONFIG_GENERIC_BUG
|
|
#define HAVE_ARCH_BUG
|
|
|
|
#ifdef CONFIG_DEBUG_BUGVERBOSE
|
|
#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
|
|
#define __BUGVERBOSE_LOCATION(file, line) \
|
|
".pushsection .rodata.str,\"aMS\",@progbits,1\n" \
|
|
"2: .string \"" file "\"\n\t" \
|
|
".popsection\n\t" \
|
|
\
|
|
".long 2b - 0b\n\t" \
|
|
".short " #line "\n\t"
|
|
#else
|
|
#define _BUGVERBOSE_LOCATION(file, line)
|
|
#endif
|
|
|
|
#define _BUG_FLAGS(flags) __BUG_FLAGS(flags)
|
|
|
|
#define __BUG_FLAGS(flags) asm volatile ( \
|
|
".pushsection __bug_table,\"a\"\n\t" \
|
|
".align 2\n\t" \
|
|
"0: .long 1f - 0b\n\t" \
|
|
_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
|
|
".short " #flags "\n\t" \
|
|
".popsection\n" \
|
|
\
|
|
"1: brk %[imm]" \
|
|
:: [imm] "i" (BUG_BRK_IMM) \
|
|
)
|
|
|
|
#define BUG() do { \
|
|
_BUG_FLAGS(0); \
|
|
unreachable(); \
|
|
} while (0)
|
|
|
|
#define __WARN_TAINT(taint) _BUG_FLAGS(BUGFLAG_TAINT(taint))
|
|
|
|
#endif /* ! CONFIG_GENERIC_BUG */
|
|
|
|
#include <asm-generic/bug.h>
|
|
|
|
#endif /* ! _ARCH_ARM64_ASM_BUG_H */
|