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| author | Jisheng Zhang <jszhang@kernel.org> | 2021-11-18 19:25:45 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-01-05 17:52:47 -0800 |
| commit | 6dd10d9166a0c06260e0ac6b1fac454117c8024a (patch) | |
| tree | 7102788ef5eb73d674726348999476a5559ea216 /arch/riscv/include/asm/asm-extable.h | |
| parent | 9d504f9aa5c1b76673018da9503e76b351a24b8c (diff) | |
| download | linux-6dd10d9166a0c06260e0ac6b1fac454117c8024a.tar.gz linux-6dd10d9166a0c06260e0ac6b1fac454117c8024a.tar.bz2 linux-6dd10d9166a0c06260e0ac6b1fac454117c8024a.zip | |
riscv: extable: consolidate definitions
This is a riscv port of commit 819771cc2892 ("arm64: extable:
consolidate definitions").
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/asm-extable.h')
| -rw-r--r-- | arch/riscv/include/asm/asm-extable.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/asm-extable.h b/arch/riscv/include/asm/asm-extable.h new file mode 100644 index 000000000000..b790c02dbdda --- /dev/null +++ b/arch/riscv/include/asm/asm-extable.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ASM_ASM_EXTABLE_H +#define __ASM_ASM_EXTABLE_H + +#ifdef __ASSEMBLY__ + +#define __ASM_EXTABLE_RAW(insn, fixup) \ + .pushsection __ex_table, "a"; \ + .balign 4; \ + .long ((insn) - .); \ + .long ((fixup) - .); \ + .popsection; + + .macro _asm_extable, insn, fixup + __ASM_EXTABLE_RAW(\insn, \fixup) + .endm + +#else /* __ASSEMBLY__ */ + +#include <linux/stringify.h> + +#define __ASM_EXTABLE_RAW(insn, fixup) \ + ".pushsection __ex_table, \"a\"\n" \ + ".balign 4\n" \ + ".long ((" insn ") - .)\n" \ + ".long ((" fixup ") - .)\n" \ + ".popsection\n" + +#define _ASM_EXTABLE(insn, fixup) __ASM_EXTABLE_RAW(#insn, #fixup) + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_ASM_EXTABLE_H */ |