When we cannot memory poison due to platform constraints, do not attempt
to run memory poisoning metatests (but still run other ASan metatests).
Signed-off-by: David Horstmann <david.horstmann@arm.com>
Now that library is in the include path when compiling metatest.c, don't
duplicate the definition of __func__ from library/common.h.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Asan poisons memory with an 8-byte granularity. We want to make sure that
the whole specified region is poisoned (our typical use case is a
heap-allocated object, and we want to poison the whole object, and we don't
care about the bytes after the end of the object and up to the beginning of
the next object). So align the start and end of the region to (un)poison to
an 8-byte boundary.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
While an area of memory is poisoned, reading or writing from it triggers a
sanitizer violation.
Implemented for ASan.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Since the code compiles with MBEDTLS_THREADING_C, not just with
MBEDTLS_THREADING_PTHREAD, use MBEDTLS_THREADING_C as the guard. The runtime
behavior is only as desired under certain conditions that imply
MBEDTLS_THREADING_PTHREAD, but that's fine: no metatest is expected to pass
in all scenarios, only under specific build- and run-time conditions.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This program can be used to validate that things that should be detected as
test failures are indeed caught, either by setting the test result to
MBEDTLS_TEST_RESULT_FAILED or by aborting the program.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
