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| author | Guo Ren <guoren@linux.alibaba.com> | 2022-04-05 15:13:12 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-05-17 16:37:21 -0700 |
| commit | 7383ee05314be58f8f9f018ee0ac53bef3808aea (patch) | |
| tree | a89a2a6a09629f049a1cfef0aa5a1daca90f401e /arch/riscv/include | |
| parent | 3092eb45637573c5e435fbf5eaf9516316e5f9c6 (diff) | |
| download | linux-stable-7383ee05314be58f8f9f018ee0ac53bef3808aea.tar.gz linux-stable-7383ee05314be58f8f9f018ee0ac53bef3808aea.tar.bz2 linux-stable-7383ee05314be58f8f9f018ee0ac53bef3808aea.zip | |
riscv: compat: signal: Add rt_frame implementation
Implement compat_setup_rt_frame for sigcontext save & restore. The
main process is the same with signal, but the rv32 pt_regs' size
is different from rv64's, so we needs convert them.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220405071314.3225832-19-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/signal32.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/signal32.h b/arch/riscv/include/asm/signal32.h new file mode 100644 index 000000000000..96dc56932e76 --- /dev/null +++ b/arch/riscv/include/asm/signal32.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __ASM_SIGNAL32_H +#define __ASM_SIGNAL32_H + +#if IS_ENABLED(CONFIG_COMPAT) +int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set, + struct pt_regs *regs); +#else +static inline +int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set, + struct pt_regs *regs) +{ + return -1; +} +#endif + +#endif |