scripts/Makefile.ubsan

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