scripts/Makefile.ubsan

Source file repositories/reference/linux-study-clean/scripts/Makefile.ubsan

File Facts

System
Linux kernel
Corpus path
scripts/Makefile.ubsan
Extension
.ubsan
Size
1355 bytes
Lines
29
Domain
Support Tooling And Documentation
Bucket
scripts
Inferred role
Support Tooling And Documentation: build/configuration rule
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# 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)

Annotation

Implementation Notes