On MacOS X, according to the manpage of mprotect(), "When a program
violates the protections of a page, it gets a SIGBUS or SIGSEGV
signal.", but fence-image-self-test was only accepting a SIGSEGV as
notification of invalid access.
Fixes fence-image-self-test
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Tests that fence_malloc and fence_image_create_bits actually work: that
out-of-bounds and out-of-row (unused stride area) accesses trigger
SIGSEGV.
If fence_malloc is a dummy (FENCE_MALLOC_ACTIVE not defined), this test
is skipped.
Changes in v2:
- check FENCE_MALLOC_ACTIVE value, not whether it is defined
- test that reading bytes near the fence pages does not cause a
segmentation fault
Changes in v3:
- Do not print progress messages unless VERBOSE environment variable is
set. Avoid spamming the terminal output of 'make check' on some
versions of autotools.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Ben Avison <bavison@riscosopen.org>
