scripts/Makefile.ubsan

   1 # SPDX-License-Identifier: GPL-2.0
   2 ifdef CONFIG_UBSAN
   3
   4 ifdef CONFIG_UBSAN_ALIGNMENT
   5       CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment)
   6 endif
   7
   8 ifdef CONFIG_UBSAN_BOUNDS
   9       CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds)
  10 endif
  11
  12 ifdef CONFIG_UBSAN_MISC
  13       CFLAGS_UBSAN += $(call cc-option, -fsanitize=shift)
  14       CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero)
  15       CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable)
  16       CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow)
  17       CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size)
  18       CFLAGS_UBSAN += $(call cc-option, -fsanitize=bool)
  19       CFLAGS_UBSAN += $(call cc-option, -fsanitize=enum)
  20 endif
  21
  22 ifdef CONFIG_UBSAN_TRAP
  23       CFLAGS_UBSAN += $(call cc-option, -fsanitize-undefined-trap-on-error)
  24 endif
  25
  26       # -fsanitize=* options makes GCC less smart than usual and
  27       # increase number of 'maybe-uninitialized false-positives
  28       CFLAGS_UBSAN += $(call cc-option, -Wno-maybe-uninitialized)
  29 endif