2017-11-01 15:07:57 +01:00
|
|
|
# SPDX-License-Identifier: GPL-2.0
|
2020-09-10 22:44:29 +09:00
|
|
|
|
2025-04-30 16:27:10 +00:00
|
|
|
# Shared with KVM/arm64.
|
|
|
|
|
export CFLAGS_UBSAN_TRAP := $(call cc-option,-fsanitize-trap=undefined,-fsanitize-undefined-trap-on-error)
|
|
|
|
|
|
2020-12-15 20:46:24 -08:00
|
|
|
# Enable available and selected UBSAN features.
|
|
|
|
|
ubsan-cflags-$(CONFIG_UBSAN_ALIGNMENT) += -fsanitize=alignment
|
2023-04-04 19:23:59 -07:00
|
|
|
ubsan-cflags-$(CONFIG_UBSAN_BOUNDS_STRICT) += -fsanitize=bounds-strict
|
2020-12-15 20:46:24 -08:00
|
|
|
ubsan-cflags-$(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
|
2025-04-30 16:27:10 +00:00
|
|
|
ubsan-cflags-$(CONFIG_UBSAN_TRAP) += $(CFLAGS_UBSAN_TRAP)
|
2020-09-10 22:44:29 +09:00
|
|
|
|
2020-12-15 20:46:24 -08:00
|
|
|
export CFLAGS_UBSAN := $(ubsan-cflags-y)
|
2024-01-18 15:06:05 -08:00
|
|
|
|
2025-03-06 20:19:09 -08:00
|
|
|
ubsan-integer-wrap-cflags-$(CONFIG_UBSAN_INTEGER_WRAP) += \
|
2025-05-03 11:46:20 -07:00
|
|
|
-DINTEGER_WRAP \
|
2025-03-06 20:19:10 -08:00
|
|
|
-fsanitize-undefined-ignore-overflow-pattern=all \
|
2025-03-06 20:19:09 -08:00
|
|
|
-fsanitize=signed-integer-overflow \
|
|
|
|
|
-fsanitize=unsigned-integer-overflow \
|
|
|
|
|
-fsanitize=implicit-signed-integer-truncation \
|
2025-03-06 20:19:11 -08:00
|
|
|
-fsanitize=implicit-unsigned-integer-truncation \
|
|
|
|
|
-fsanitize-ignorelist=$(srctree)/scripts/integer-wrap-ignore.scl
|
2025-03-06 20:19:09 -08:00
|
|
|
export CFLAGS_UBSAN_INTEGER_WRAP := $(ubsan-integer-wrap-cflags-y)
|
