scripts/Makefile.ubsan

   1 # SPDX-License-Identifier: GPL-2.0
   2 ifdef CONFIG_UBSAN_ALIGNMENT
   3       CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment)
   4 endif
   5
   6 ifdef CONFIG_UBSAN_BOUNDS
   7       ifdef CONFIG_CC_IS_CLANG
   8             CFLAGS_UBSAN += -fsanitize=array-bounds
   9       else
  10             CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds)
  11       endif
  12 endif
  13
  14 ifdef CONFIG_UBSAN_LOCAL_BOUNDS
  15       CFLAGS_UBSAN += -fsanitize=local-bounds
  16 endif
  17
  18 ifdef CONFIG_UBSAN_MISC
  19       CFLAGS_UBSAN += $(call cc-option, -fsanitize=shift)
  20       CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero)
  21       CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable)
  22       CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow)
  23       CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size)
  24       CFLAGS_UBSAN += $(call cc-option, -fsanitize=bool)
  25       CFLAGS_UBSAN += $(call cc-option, -fsanitize=enum)
  26 endif
  27
  28 ifdef CONFIG_UBSAN_TRAP
  29       CFLAGS_UBSAN += $(call cc-option, -fsanitize-undefined-trap-on-error)
  30 endif
  31
  32       # -fsanitize=* options makes GCC less smart than usual and
  33       # increase number of 'maybe-uninitialized false-positives
  34       CFLAGS_UBSAN += $(call cc-option, -Wno-maybe-uninitialized)