[libc-commits] [libc] [libc] Implement getitimer and setitimer, add proxy headers for itimerval (PR #134773)

[Michael Jones via libc-commits]

michaelrj-google wrote:

Adding the RISC-V targets can be done in a followup patch. I'm going to merge this as-is for now.

https://github.com/llvm/llvm-project/pull/134773