Extend elf_aux_info() support for RISC-V on FreeBSD and OpenBSD

[brad0]

No description provided.

[stweil]

Could you please explain in which scenario these changes are needed? The old code worked for me on RISC-V.

[amitdo]

@brad0,

Please reply to @stweil question.

[amitdo]

@stweil,

I found the answer to your question:

https://reviews.llvm.org/D109330

FreeBSD provides 'elf_aux_info' function that does the same as 'getauxval' on Linux.

[stweil]

@brad0, are you running FreeBSD (or another BSD variant) with RISC-V?

[amitdo]

https://clang.llvm.org/docs/Maintainers.html

OpenBSD driver
Brad Smith
[email protected] (email), brad (Phabricator), brad0 (GitHub)

https://github.com/llvm/llvm-project/issues?q=state%3Aopen%20involves%3Abrad0

[amitdo]

@stweil,

We're already doing the same thing for arm+neon:

https://github.com/search?q=repo%3Atesseract-ocr%2Ftesseract+elf_aux_info&type=code

[stweil]

Right, similar code was added in pull request #3782.

[brad0]

@brad0, are you running FreeBSD (or another BSD variant) with RISC-V?

Sorry, I was busy. Yes, OpenBSD, but it applies to FreeBSD too.