Messages in this thread | | | Date | Mon, 4 Jan 2021 16:34:49 -0700 | From | Nathan Chancellor <> | Subject | Re: [PATCH] ubsan: disable unsigned-integer-overflow sanitizer with clang |
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On Mon, Jan 04, 2021 at 03:33:33PM -0800, Andrew Morton wrote: > On Mon, 4 Jan 2021 15:33:36 -0700 Nathan Chancellor <natechancellor@gmail.com> wrote: > > > > > +++ b/lib/Kconfig.ubsan > > > > @@ -122,6 +122,8 @@ config UBSAN_SIGNED_OVERFLOW > > > > > > > > config UBSAN_UNSIGNED_OVERFLOW > > > > bool "Perform checking for unsigned arithmetic overflow" > > > > + # clang hugely expands stack usage with -fsanitize=object-size > > > > > > This is the first time -fsanitize=object-size is mentioned. Typo? > > > > Copy and paste issue from CONFIG_UBSAN_OBJECT_SIZE > > This?
Correct.
> --- a/lib/Kconfig.ubsan~ubsan-disable-unsigned-integer-overflow-sanitizer-with-clang-fix > +++ a/lib/Kconfig.ubsan > @@ -122,7 +122,7 @@ config UBSAN_SIGNED_OVERFLOW > > config UBSAN_UNSIGNED_OVERFLOW > bool "Perform checking for unsigned arithmetic overflow" > - # clang hugely expands stack usage with -fsanitize=object-size > + # clang hugely expands stack usage with -fsanitize=unsigned-integer-overflow > depends on !CC_IS_CLANG > depends on $(cc-option,-fsanitize=unsigned-integer-overflow) > help > _ >
Cheers, Nathan
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