[PATCH v2 0/7] Clean up UBSAN Makefile

[Kees Cook]

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@xxxxxxxxxxxx/

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(-)

-- 
2.25.1