1 config ARCH_HAS_UBSAN_SANITIZE_ALL
4 config ARCH_WANTS_UBSAN_NO_NULL
8 bool "Undefined behaviour sanity checker"
10 This option enables undefined behaviour sanity checker
11 Compile-time instrumentation is used to detect various undefined
12 behaviours in runtime. Various types of checks may be enabled
13 via boot parameter ubsan_handle (see: Documentation/ubsan.txt).
15 config UBSAN_SANITIZE_ALL
16 bool "Enable instrumentation for the entire kernel"
18 depends on ARCH_HAS_UBSAN_SANITIZE_ALL
20 # We build with -Wno-maybe-uninitilzed, but we still want to
21 # use -Wmaybe-uninitilized in allmodconfig builds.
22 # So dependsy bellow used to disable this option in allmodconfig
23 depends on !COMPILE_TEST
26 This option activates instrumentation for the entire kernel.
27 If you don't enable this option, you have to explicitly specify
28 UBSAN_SANITIZE := y for the files/directories you want to check for UB.
29 Enabling this option will get kernel image size increased
32 config UBSAN_ALIGNMENT
33 bool "Enable checking of pointers alignment"
35 default y if !HAVE_EFFICIENT_UNALIGNED_ACCESS
37 This option enables detection of unaligned memory accesses.
38 Enabling this option on architectures that support unaligned
39 accesses may produce a lot of false positives.
42 bool "Enable checking of null pointers"
44 default y if !ARCH_WANTS_UBSAN_NO_NULL
46 This option enables detection of memory accesses via a