1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __VDSO_EXTABLE_H
3#define __VDSO_EXTABLE_H
4
5/*
6 * Inject exception fixup for vDSO code.  Unlike normal exception fixup,
7 * vDSO uses a dedicated handler the addresses are relative to the overall
8 * exception table, not each individual entry.
9 */
10#ifdef __ASSEMBLY__
11#define _ASM_VDSO_EXTABLE_HANDLE(from, to)	\
12	ASM_VDSO_EXTABLE_HANDLE from to
13
14.macro ASM_VDSO_EXTABLE_HANDLE from:req to:req
15	.pushsection __ex_table, "a"
16	.long (\from) - __ex_table
17	.long (\to) - __ex_table
18	.popsection
19.endm
20#else
21#define _ASM_VDSO_EXTABLE_HANDLE(from, to)	\
22	".pushsection __ex_table, \"a\"\n"      \
23	".long (" #from ") - __ex_table\n"      \
24	".long (" #to ") - __ex_table\n"        \
25	".popsection\n"
26#endif
27
28#endif /* __VDSO_EXTABLE_H */
29