riscv: compat: signal: Add rt_frame implementation

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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>

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Guo Ren 2022-04-05 15:13:12 +08:00 • committed by Palmer Dabbelt

parent 3092eb4563

commit 7383ee0531

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18

arch/riscv/include/asm/signal32.h

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1

arch/riscv/kernel/Makefile

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243

arch/riscv/kernel/compat_signal.c

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7

arch/riscv/kernel/signal.c

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