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linux-user/riscv: Align signal frame to 16 bytes

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Follow the kernel's alignment, as we already noted.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1093
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220729201942.30738-1-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Richard Henderson 2022-07-29 13:19:42 -07:00 committed by Alistair Francis
parent 0e0c2cf6de
commit 1eaa63429a
1 changed files with 1 additions and 3 deletions
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linux-user/riscv/signal.c
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@ -64,9 +64,7 @@ static abi_ulong get_sigframe(struct target_sigaction *ka,
/* This is the X/Open sanctioned signal stack switching. */ /* This is the X/Open sanctioned signal stack switching. */
sp = target_sigsp(sp, ka) - framesize; sp = target_sigsp(sp, ka) - framesize;
sp &= ~0xf;
/* XXX: kernel aligns with 0xf ? */
sp &= ~3UL; /* align sp on 4-byte boundary */
return sp; return sp;
} }