[PATCH] D113991: Support using sha256 as --build-id kind

[serge via Phabricator via llvm-commits]

serge-sans-paille added a comment.

In D113991#3135869 <https://reviews.llvm.org/D113991#3135869>, @joerg wrote:

> Exactly. This patch only provides a way to tick a checkbox on a stupid compliance list. SHA2 provides no security benefit here for the price of slower linking. If we want to use a more modern cryptographic hash function, the primary criterion should be performance, IMO.

I second that opinion :-) Then blake2 (see https://en.wikipedia.org/wiki/BLAKE_(hash_function)) would be a good match. The reference implementation is covered by the Apache Public License 2.0 so that would be fine license wise, and it claims to be "faster than MD5, SHA-1, SHA-2, and SHA-3, on 64-bit x86-64 and ARM architectures"


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https://reviews.llvm.org/D113991