[libc-commits] [libc] [libc] add timeout and clock conversion utilities (PR #91905)

[Schrodinger ZHU Yifan via libc-commits]

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SchrodingerZhu wrote:

The problem is that futex-timeout can form a dependency cycle if clock_gettime is implemented using vdso which uses callonce to initialize the function table.

https://github.com/llvm/llvm-project/pull/91905