[PATCH v2 0/7] Clean up UBSAN Makefile

Kees Cook
2020-12-03T00:45:50Z

Hi,

This series attempts to address the issues seen with UBSAN's object-size
sanitizer causing problems under GCC. In the process, the Kconfig and
Makefile are refactored to do all the cc-option calls in the Kconfig.
Additionally start to detangle -Wno-maybe-uninitialized, disable
UBSAN_TRAP under COMPILE_TEST for wider build coverage, and expand the
libusan tests.

Thanks!

-Kees

v2:
- Add reviewed/tested-bys (Nathan Chancellor)
- Reorganize -Wno-maybe-uninitialized changes
- Split up UBSAN_MISC features and document them
- Expand libubsan tests
v1: https://lore.kernel.org/lkml/20201002221527.177500-1-keescook@chromium.org/

Kees Cook (7):
ubsan: Remove redundant -Wno-maybe-uninitialized
ubsan: Move cc-option tests into Kconfig
ubsan: Disable object-size sanitizer under GCC
ubsan: Disable UBSAN_TRAP for all*config
ubsan: Enable for all*config builds
ubsan: Remove UBSAN_MISC in favor of individual options
ubsan: Expand tests and reporting

Documentation/dev-tools/ubsan.rst | 1 +
lib/Kconfig.ubsan | 128 +++++++++++++++++++++++++-----
lib/test_ubsan.c | 74 +++++++++++++++--
scripts/Makefile.ubsan | 49 ++++--------
4 files changed, 188 insertions(+), 64 deletions(-)

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2.25.1