Fix some issues uncovered by UBSAN and enable UBSAN for nolibc-test to avoid regressions.
Signed-off-by: Thomas Weißschuh linux@weissschuh.net --- Changes in v2: - Introduce and use __nolibc_aligned_as() - Reduce size of fixes to i{64,}toa_r() - Link to v1: https://lore.kernel.org/r/20250416-nolibc-ubsan-v1-0-c4704bb23da7@weissschuh...
--- Thomas Weißschuh (7): tools/nolibc: add __nolibc_has_feature() tools/nolibc: add __nolibc_aligned() and __nolibc_aligned_as() tools/nolibc: disable function sanitizer for _start_c() tools/nolibc: properly align dirent buffer tools/nolibc: fix integer overflow in i{64,}toa_r() and selftests/nolibc: disable ubsan for smash_stack() selftests/nolibc: enable UBSAN if available
tools/include/nolibc/compiler.h | 9 +++++++++ tools/include/nolibc/crt.h | 5 +++++ tools/include/nolibc/dirent.h | 3 ++- tools/include/nolibc/stdlib.h | 4 ++-- tools/testing/selftests/nolibc/Makefile | 3 ++- tools/testing/selftests/nolibc/nolibc-test.c | 1 + 6 files changed, 21 insertions(+), 4 deletions(-) --- base-commit: 7c73c10b906778384843b9d3ac6c2224727bbf5c change-id: 20250416-nolibc-ubsan-028401698654
Best regards,