From 7fb5ef350bb434644fe1ac8eeb973543e017c932 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 15 Mar 2022 01:43:04 -0700 Subject: [PATCH] linux-user/alpha: Fix sigsuspend for big-endian hosts On alpha, the sigset argument for sigsuspend is in a register. When we drop that into memory that happens in host-endianness, but target_to_host_old_sigset will treat it as target-endianness. Signed-off-by: Richard Henderson Reviewed-by: Laurent Vivier Message-Id: <20220315084308.433109-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier --- linux-user/syscall.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 75ed71eb46..77cd88b537 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9559,7 +9559,8 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, { TaskState *ts = cpu->opaque; #if defined(TARGET_ALPHA) - abi_ulong mask = arg1; + /* target_to_host_old_sigset will bswap back */ + abi_ulong mask = tswapal(arg1); target_to_host_old_sigset(&ts->sigsuspend_mask, &mask); #else if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))