[all-commits] [llvm/llvm-project] 7ca237: [libc] Implement barriers for pthreads (#148948)

Uzair Nawaz via All-commits all-commits at lists.llvm.org
Mon Jul 28 11:23:00 PDT 2025


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7ca23754c486a8ed5b6739456a4562bc09909913
      https://github.com/llvm/llvm-project/commit/7ca23754c486a8ed5b6739456a4562bc09909913
  Author: Uzair Nawaz <uzairnawaz at google.com>
  Date:   2025-07-28 (Mon, 28 Jul 2025)

  Changed paths:
    M libc/config/linux/x86_64/entrypoints.txt
    M libc/hdr/CMakeLists.txt
    A libc/hdr/pthread_macros.h
    M libc/hdr/types/CMakeLists.txt
    A libc/hdr/types/pthread_barrier_t.h
    A libc/hdr/types/pthread_barrierattr_t.h
    M libc/include/CMakeLists.txt
    M libc/include/llvm-libc-macros/pthread-macros.h
    M libc/include/llvm-libc-types/CMakeLists.txt
    A libc/include/llvm-libc-types/__barrier_type.h
    A libc/include/llvm-libc-types/pthread_barrier_t.h
    A libc/include/llvm-libc-types/pthread_barrierattr_t.h
    M libc/include/pthread.yaml
    M libc/src/__support/threads/linux/CMakeLists.txt
    A libc/src/__support/threads/linux/barrier.cpp
    A libc/src/__support/threads/linux/barrier.h
    M libc/src/pthread/CMakeLists.txt
    A libc/src/pthread/pthread_barrier_destroy.cpp
    A libc/src/pthread/pthread_barrier_destroy.h
    A libc/src/pthread/pthread_barrier_init.cpp
    A libc/src/pthread/pthread_barrier_init.h
    A libc/src/pthread/pthread_barrier_wait.cpp
    A libc/src/pthread/pthread_barrier_wait.h
    M libc/test/integration/src/pthread/CMakeLists.txt
    A libc/test/integration/src/pthread/pthread_barrier_test.cpp

  Log Message:
  -----------
  [libc] Implement barriers for pthreads (#148948)

Implemented barrier synchronization for pthreads
- Uses condition variables internally for platform independence
(platform-specific work is handled by the condition variable
implementation)
- Does NOT currently handle barrierattr pshared, this is a goal for a
future patch



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