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 (see: Documentation/ubsan.txt).
12 config UBSAN_SANITIZE_ALL
13 bool "Enable instrumentation for the entire kernel"
15 depends on ARCH_HAS_UBSAN_SANITIZE_ALL
17 # We build with -Wno-maybe-uninitilzed, but we still want to
18 # use -Wmaybe-uninitilized in allmodconfig builds.
19 # So dependsy bellow used to disable this option in allmodconfig
20 depends on !COMPILE_TEST
23 This option activates instrumentation for the entire kernel.
24 If you don't enable this option, you have to explicitly specify
25 UBSAN_SANITIZE := y for the files/directories you want to check for UB.
26 Enabling this option will get kernel image size increased
29 config UBSAN_ALIGNMENT
30 bool "Enable checking of pointers alignment"
32 default y if !HAVE_EFFICIENT_UNALIGNED_ACCESS
34 This option enables detection of unaligned memory accesses.
35 Enabling this option on architectures that support unaligned
36 accesses may produce a lot of false positives.