linux-user/s390x: Fix sigcontext sregs value

Using the host address of &frame->sregs is incorrect.
We need the guest address.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210428193408.233706-7-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index dcc6f7b..f8515dd 100644 (file)
--- a/linux-user/s390x/signal.c
+++ b/linux-user/s390x/signal.c
@@ -142,7 +142,7 @@ void setup_frame(int sig, struct target_sigaction *ka,
 
     save_sigregs(env, &frame->sregs);
 
-    __put_user((abi_ulong)(unsigned long)&frame->sregs, &frame->sc.sregs);
+    __put_user(frame_addr + offsetof(sigframe, sregs), &frame->sc.sregs);
 
     /* Set up to return from userspace.  If provided, use a stub
        already in userspace.  */