On 06/06/2017 05:30 PM, Stefan Liebler wrote:
Hi Florian,
I get the following warning / werror with gcc 4.8.5 on s390x:
gcc tst-dynarray.c -O3 -c ... -o <build>/malloc/tst-dynarray.o
In file included from tst-dynarray.c:50:0:
tst-dynarray.c: In function ‘do_test’:
../support/check.h:51:8: error: ‘result.length’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
if (expr) \
^
tst-dynarray.c:377:23: note: ‘result.length’ was declared here
struct long_array result;
^
In file included from tst-dynarray.c:50:0:
../support/check.h:51:8: error: ‘result.array’ may be used uninitialized
in this function [-Werror=maybe-uninitialized]
if (expr) \
^
tst-dynarray.c:377:23: note: ‘result.array’ was declared here
struct long_array result;
^
cc1: all warnings being treated as errors
Have you seen those warnings on other architectures, too?
I could reproduce it with -O3 on s390x. I have not tried it with other
architectures, but it is a generic problem with TEST_VERIFY_EXIT which
is not really related to the dynarray code. I propose the attached
patch to fix it.
Thanks,
Florian