[all-commits] [llvm/llvm-project] 203aff: [LIBC] Implement `sched_yield()`

[goldsteinn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 203aff2df368f63532c0db4c5ab2879438654814
      https://github.com/llvm/llvm-project/commit/203aff2df368f63532c0db4c5ab2879438654814
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2023-04-12 (Wed, 12 Apr 2023)

  Changed paths:
    M libc/config/linux/aarch64/entrypoints.txt
    M libc/config/linux/riscv64/entrypoints.txt
    M libc/config/linux/x86_64/entrypoints.txt
    M libc/spec/gnu_ext.td
    M libc/spec/posix.td
    M libc/src/sched/CMakeLists.txt
    M libc/src/sched/linux/CMakeLists.txt
    A libc/src/sched/linux/sched_yield.cpp
    A libc/src/sched/sched_yield.h
    M libc/test/src/sched/CMakeLists.txt
    A libc/test/src/sched/yield_test.cpp

  Log Message:
  -----------
  [LIBC] Implement `sched_yield()`

Implements: https://linux.die.net/man/2/sched_yield

Possibly we don't need the return value check / errno as according to
both the manpage (and current linux source) `sched_yield` cannot fail.

Reviewed By: sivachandra, michaelrj

Differential Revision: https://reviews.llvm.org/D147985


  Commit: ee361a3fabb1832ef080fceea07a2451c399c6e3
      https://github.com/llvm/llvm-project/commit/ee361a3fabb1832ef080fceea07a2451c399c6e3
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2023-04-12 (Wed, 12 Apr 2023)

  Changed paths:
    M libc/src/sys/random/linux/getrandom.cpp
    M libc/test/src/sys/random/linux/getrandom_test.cpp

  Log Message:
  -----------
  [LIBC] Fix `getrandom` success return value

`getrandom` should return the number of bytes successfully set on
success, not `0`.

Reviewed By: sivachandra, michaelrj

Differential Revision: https://reviews.llvm.org/D147981


  Commit: 9638da200e00bd069e6dd63604e14cbafede9324
      https://github.com/llvm/llvm-project/commit/9638da200e00bd069e6dd63604e14cbafede9324
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2023-04-12 (Wed, 12 Apr 2023)

  Changed paths:
    M libc/test/src/sched/cpu_count_test.cpp

  Log Message:
  -----------
  [LIBC] Fix comments / name of __sched_cpu_count tests

Test was incorrectly named/commented after the sched_{set|get}affinity
functions.

Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D148044


Compare: https://github.com/llvm/llvm-project/compare/2c12e9b7b2df...9638da200e00