1 config ARCH_HAS_UBSAN_SANITIZE_ALL
5 bool "Undefined behaviour sanity checker"
7 This option enables undefined behaviour sanity checker
8 Compile-time instrumentation is used to detect various undefined
9 behaviours in runtime. Various types of checks may be enabled
10 via boot parameter ubsan_handle
11 (see: Documentation/dev-tools/ubsan.rst).
13 config UBSAN_SANITIZE_ALL
14 bool "Enable instrumentation for the entire kernel"
16 depends on ARCH_HAS_UBSAN_SANITIZE_ALL
18 # We build with -Wno-maybe-uninitilzed, but we still want to
19 # use -Wmaybe-uninitilized in allmodconfig builds.
20 # So dependsy bellow used to disable this option in allmodconfig
21 depends on !COMPILE_TEST
24 This option activates instrumentation for the entire kernel.
25 If you don't enable this option, you have to explicitly specify
26 UBSAN_SANITIZE := y for the files/directories you want to check for UB.
27 Enabling this option will get kernel image size increased
30 config UBSAN_ALIGNMENT
31 bool "Enable checking of pointers alignment"
33 default y if !HAVE_EFFICIENT_UNALIGNED_ACCESS
35 This option enables detection of unaligned memory accesses.
36 Enabling this option on architectures that support unaligned
37 accesses may produce a lot of false positives.
40 tristate "Module for testing for undefined behavior detection"
43 This is a test module for UBSAN.
44 It triggers various undefined behavior, and detect it.