On 3/25/21 8:55 PM, Laurent Vivier wrote:
> Le 24/03/2021 à 19:51, Andreas Krebbel a écrit :
>> When setting up the pointer for the sigreturn stub in the return
>> address register (r14) we currently use the host frame address instead
>> of the guest frame address.
>>
defaults to 0 hiding the actual problem.
Signed-off-by: Andreas Krebbel
---
linux-user/s390x/signal.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index ecfa2a14a9..7107c5fb53 100644
--- a/linux-user/s390x/signal.c
+++ b
On 3/24/21 6:53 PM, Laurent Vivier wrote:
> Le 24/03/2021 à 16:55, Andreas Krebbel a écrit :
>> When setting up the pointer for the sigreturn stub in the return
>> address register (r14) we have to use the guest frame pointer instead
>> of the host frame pointer.
>>
to 0 hiding the actual problem.
Signed-off-by: Andreas Krebbel
---
linux-user/s390x/signal.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index ecfa2a14a9..e9bf865074 100644
--- a/linux-user/s390x/signal.c
+++ b/linux
On 3/24/21 2:06 PM, Laurent Vivier wrote:
> Le 24/03/2021 à 12:26, Andreas Krebbel a écrit :
>> On 3/24/21 11:28 AM, Laurent Vivier wrote:
>>> Le 24/03/2021 à 10:17, David Hildenbrand a écrit :
>>>> On 24.03.21 09:51, Andreas Krebbel wrote:
>>>>> T
: This only caused problems if Qemu has been built with
--disable-pie (as it is in distros nowadays). Otherwise guest_base
defaults to 0 hiding the actual problem.
Signed-off-by: Andreas Krebbel
---
linux-user/s390x/signal.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a
On 3/24/21 11:28 AM, Laurent Vivier wrote:
> Le 24/03/2021 à 10:17, David Hildenbrand a écrit :
>> On 24.03.21 09:51, Andreas Krebbel wrote:
>>> The sigreturn SVC is put onto the stack by the emulation code. Hence
>>> the address of it should not be subject to guest_b
