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Diffstat (limited to '')
-rw-r--r-- | arch/arm64/include/asm/extable.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/extable.h b/arch/arm64/include/asm/extable.h new file mode 100644 index 000000000..56a4f68b2 --- /dev/null +++ b/arch/arm64/include/asm/extable.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_EXTABLE_H +#define __ASM_EXTABLE_H + +/* + * The exception table consists of pairs of relative offsets: the first + * is the relative offset to an instruction that is allowed to fault, + * and the second is the relative offset at which the program should + * continue. No registers are modified, so it is entirely up to the + * continuation code to figure out what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +struct exception_table_entry +{ + int insn, fixup; +}; + +#define ARCH_HAS_RELATIVE_EXTABLE + +extern int fixup_exception(struct pt_regs *regs); +#endif |