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 <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220315084308.433109-2-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 75ed71e..77cd88b 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9559,7 +9559,8 @@
{
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)))