| # SPDX-License-Identifier: GPL-2.0 |
| |
| # Shared with KVM/arm64. |
| export CFLAGS_UBSAN_TRAP := $(call cc-option,-fsanitize-trap=undefined,-fsanitize-undefined-trap-on-error) |
| |
| # Enable available and selected UBSAN features. |
| ubsan-cflags-$(CONFIG_UBSAN_ALIGNMENT) += -fsanitize=alignment |
| ubsan-cflags-$(CONFIG_UBSAN_BOUNDS_STRICT) += -fsanitize=bounds-strict |
| ubsan-cflags-$(CONFIG_UBSAN_ARRAY_BOUNDS) += -fsanitize=array-bounds |
| ubsan-cflags-$(CONFIG_UBSAN_LOCAL_BOUNDS) += -fsanitize=local-bounds |
| ubsan-cflags-$(CONFIG_UBSAN_SHIFT) += -fsanitize=shift |
| ubsan-cflags-$(CONFIG_UBSAN_DIV_ZERO) += -fsanitize=integer-divide-by-zero |
| ubsan-cflags-$(CONFIG_UBSAN_UNREACHABLE) += -fsanitize=unreachable |
| ubsan-cflags-$(CONFIG_UBSAN_BOOL) += -fsanitize=bool |
| ubsan-cflags-$(CONFIG_UBSAN_ENUM) += -fsanitize=enum |
| ubsan-cflags-$(CONFIG_UBSAN_TRAP) += $(CFLAGS_UBSAN_TRAP) |
| |
| export CFLAGS_UBSAN := $(ubsan-cflags-y) |
| |
| ubsan-integer-wrap-cflags-$(CONFIG_UBSAN_INTEGER_WRAP) += \ |
| -DINTEGER_WRAP \ |
| -fsanitize-undefined-ignore-overflow-pattern=all \ |
| -fsanitize=signed-integer-overflow \ |
| -fsanitize=unsigned-integer-overflow \ |
| -fsanitize=implicit-signed-integer-truncation \ |
| -fsanitize=implicit-unsigned-integer-truncation \ |
| -fsanitize-ignorelist=$(srctree)/scripts/integer-wrap-ignore.scl |
| export CFLAGS_UBSAN_INTEGER_WRAP := $(ubsan-integer-wrap-cflags-y) |
