[Qemu-devel] [PATCH] linux-user/signal.c: Set fault address in AArch64 signal info

[Peter Maydell <peter.maydell@linaro.org>]

Set the fault address correctly in the signal information passed
to a signal handler for AArch64 guests.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
This would be a candidate for stable except that it depends on
the a64 system rework which added exception.vaddress. Hopefully
not many guests care about the fault address information...

Riku: I'm assuming you'll put this in your tree; I can put it in
target-arm if you prefer, but I know you have those other pending
signal.c changes...

 linux-user/signal.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/linux-user/signal.c b/linux-user/signal.c
index 7d6246f..5b8a01f 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -1242,8 +1242,7 @@ static int target_setup_sigframe(struct target_rt_sigframe *sf,
     __put_user(env->pc, &sf->uc.tuc_mcontext.pc);
     __put_user(pstate_read(env), &sf->uc.tuc_mcontext.pstate);
 
-    __put_user(/*current->thread.fault_address*/ 0,
-            &sf->uc.tuc_mcontext.fault_address);
+    __put_user(env->exception.vaddress, &sf->uc.tuc_mcontext.fault_address);
 
     for (i = 0; i < TARGET_NSIG_WORDS; i++) {
         __put_user(set->sig[i], &sf->uc.tuc_sigmask.sig[i]);
-- 
1.9.2