Dereferencing a NULL pointer is undefined behaviour and may not always
result in a segmentation fault. Explicitly raise the SIGSEGV signal to
test handling of this signal.
v2: include signal.h (Derek Morton)
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Unit test to check a segfaulting subtest is handled correctly.
v2: Added script to check subtest results
v3: Removed script. Updated test to use fork to monitor return status.
v4: Added igt_segfault to .gitignore
Signed-off-by: Derek Morton <derek.j.morton@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>