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| author | Yang Shi <yang.shi@linaro.org> | 2016-02-11 16:12:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-02-11 18:35:48 -0800 |
| commit | 7707535ab95e2231b6d7f2bfb4f27558e83c4dc2 (patch) | |
| tree | 818d530013add9054b2382f1d301dc72d5bd8dea /lib/Kconfig.ubsan | |
| parent | c05235d50f681bf685e7290cae05ab3b4fa493f3 (diff) | |
| download | lwn-7707535ab95e2231b6d7f2bfb4f27558e83c4dc2.tar.gz lwn-7707535ab95e2231b6d7f2bfb4f27558e83c4dc2.zip | |
ubsan: cosmetic fix to Kconfig text
When enabling UBSAN_SANITIZE_ALL, the kernel image size gets increased
significantly (~3x). So, it sounds better to have some note in Kconfig.
And, fixed a typo.
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/Kconfig.ubsan')
| -rw-r--r-- | lib/Kconfig.ubsan | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan index 49518fb48cab..e07c1ba9ba13 100644 --- a/lib/Kconfig.ubsan +++ b/lib/Kconfig.ubsan @@ -18,6 +18,8 @@ config UBSAN_SANITIZE_ALL This option activates instrumentation for the entire kernel. If you don't enable this option, you have to explicitly specify UBSAN_SANITIZE := y for the files/directories you want to check for UB. + Enabling this option will get kernel image size increased + significantly. config UBSAN_ALIGNMENT bool "Enable checking of pointers alignment" @@ -25,5 +27,5 @@ config UBSAN_ALIGNMENT default y if !HAVE_EFFICIENT_UNALIGNED_ACCESS help This option enables detection of unaligned memory accesses. - Enabling this option on architectures that support unalligned + Enabling this option on architectures that support unaligned accesses may produce a lot of false positives. |