diff mbox series

tests/tcg/s390x: Fix alignment of csst parameter list

Message ID 20190610014249.7346-1-richard.henderson@linaro.org
State Accepted
Commit 62a31161ee60d6c3c62d36b2bcadcd9de8db51f5
Headers show
Series tests/tcg/s390x: Fix alignment of csst parameter list | expand

Commit Message

Richard Henderson June 10, 2019, 1:42 a.m. UTC
The parameter list given in general register 1 shall be aligned
on a quadword boundary.  This test currently succeeds or fails
depending on the compiler version used and the accidential layout
of the function's stack frame.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 tests/tcg/s390x/csst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.17.1

Comments

David Hildenbrand June 11, 2019, 1:06 p.m. UTC | #1
On 10.06.19 03:42, Richard Henderson wrote:
> The parameter list given in general register 1 shall be aligned

> on a quadword boundary.  This test currently succeeds or fails

> depending on the compiler version used and the accidential layout

> of the function's stack frame.

> 

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

> ---

>  tests/tcg/s390x/csst.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

> 

> diff --git a/tests/tcg/s390x/csst.c b/tests/tcg/s390x/csst.c

> index 1dae9071fb..084d80af49 100644

> --- a/tests/tcg/s390x/csst.c

> +++ b/tests/tcg/s390x/csst.c

> @@ -3,7 +3,7 @@

>  

>  int main(void)

>  {

> -    uint64_t parmlist[] = {

> +    uint64_t parmlist[] __attribute__((aligned(16))) = {

>          0xfedcba9876543210ull,

>          0,

>          0x7777777777777777ull,

> 


Reviewed-by: David Hildenbrand <david@redhat.com>


Queuing it to

https://github.com/davidhildenbrand/qemu.git s390-tcg-next

for now. Let me know if you want to send this via a different PULL
request yourself.

-- 

Thanks,

David / dhildenb
Richard Henderson June 11, 2019, 2:39 p.m. UTC | #2
On 6/11/19 6:06 AM, David Hildenbrand wrote:
> Queuing it to

> 

> https://github.com/davidhildenbrand/qemu.git s390-tcg-next

> 

> for now. Let me know if you want to send this via a different PULL

> request yourself.


No, that's perfect, thanks.


r~
diff mbox series

Patch

diff --git a/tests/tcg/s390x/csst.c b/tests/tcg/s390x/csst.c
index 1dae9071fb..084d80af49 100644
--- a/tests/tcg/s390x/csst.c
+++ b/tests/tcg/s390x/csst.c
@@ -3,7 +3,7 @@ 
 
 int main(void)
 {
-    uint64_t parmlist[] = {
+    uint64_t parmlist[] __attribute__((aligned(16))) = {
         0xfedcba9876543210ull,
         0,
         0x7777777777777777ull,