smd added a comment.
In D131345#3712814 <https://reviews.llvm.org/D131345#3712814>, @kito-cheng
wrote:
> I guess we should checking `J` extension is enabled somewhere when user
> trying to enable HWASAN? or checking that at HWASAN library at run-time?
> otherwise my understanding is user will get crash when enabling HWASAN if
> linux and/or HW don't support that?
It relies on a runtime check: during init runtime makes
PR_{SET,GET}_TAGGED_ADDR_CTRL calls and if they're not supported, it fails with
an error.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D131345/new/
https://reviews.llvm.org/D131345
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