chill added a comment.
In D85649 <https://reviews.llvm.org/D85649> I suggested a different version of
module flags, which is a bit nicer to use, e.g. one can say just
getModuleFlag("sign-return-address-with-bkey") != nullptr
instead of a) checking for the flag presence, b) getting its value and c)
comparing it to a set of strings, which is
way too verbose.
Thus, the set of module flags are essentially booleans:
- "sign-return-address" when PAC-RET is enabled; it establishes the defaults of
signing non-leaf functions with the A key
- "sign-return-address-all", modifies the default, established by
"sign-return-address" to signing all functions, including ones that do not
spill LR
- "sign-return-address-with-bkey", modifies the default, established by
"sign-return-address" to signing with the B key.
These are not ABI, so if, in the future, if we do need a set of values, we can
easily change it.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D80791/new/
https://reviews.llvm.org/D80791
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