7 files changed, 170 insertions, 0 deletions
diff --git a/libc/src/pthread/CMakeLists.txt b/libc/src/pthread/CMakeLists.txt
index c5db6fa..fe31e6a 100644
--- a/libc/src/pthread/CMakeLists.txt
+++ b/libc/src/pthread/CMakeLists.txt
@@ -273,6 +273,40 @@ add_entrypoint_object(
 )
 
 add_entrypoint_object(
+  pthread_barrier_init
+  SRCS
+    pthread_barrier_init.cpp
+  HDRS
+    pthread_barrier_init.h
+  DEPENDS
+    libc.src.errno.errno
+    libc.include.pthread
+    libc.src.__support.threads.linux.barrier
+)
+
+add_entrypoint_object(
+  pthread_barrier_destroy
+  SRCS
+    pthread_barrier_destroy.cpp
+  HDRS
+    pthread_barrier_destroy.h
+  DEPENDS
+    libc.include.pthread
+    libc.src.__support.threads.linux.barrier
+)
+
+add_entrypoint_object(
+  pthread_barrier_wait
+  SRCS
+    pthread_barrier_wait.cpp
+  HDRS
+    pthread_barrier_wait.h
+  DEPENDS
+    libc.include.pthread
+    libc.src.__support.threads.linux.barrier
+)
+
+add_entrypoint_object(
   pthread_mutex_init
   SRCS
     pthread_mutex_init.cpp
diff --git a/libc/src/pthread/pthread_barrier_destroy.cpp b/libc/src/pthread/pthread_barrier_destroy.cpp
new file mode 100644
index 0000000..82de8f2
--- /dev/null
+++ b/libc/src/pthread/pthread_barrier_destroy.cpp
@@ -0,0 +1,22 @@
+//===-- Implementation of the pthread_barrier_destroy function ------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "pthread_barrier_destroy.h"
+
+#include "hdr/types/pthread_barrier_t.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/__support/threads/linux/barrier.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(int, pthread_barrier_destroy, (pthread_barrier_t * b)) {
+  return Barrier::destroy(reinterpret_cast<Barrier *>(b));
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/pthread/pthread_barrier_destroy.h b/libc/src/pthread/pthread_barrier_destroy.h
new file mode 100644
index 0000000..e27552c
--- /dev/null
+++ b/libc/src/pthread/pthread_barrier_destroy.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for pthread_barrier_destroy --------*- C++-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_DESTROY_H
+#define LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_DESTROY_H
+
+#include "hdr/types/pthread_barrier_t.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+int pthread_barrier_destroy(pthread_barrier_t *b);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_DESTROY_H
diff --git a/libc/src/pthread/pthread_barrier_init.cpp b/libc/src/pthread/pthread_barrier_init.cpp
new file mode 100644
index 0000000..2e92238
--- /dev/null
+++ b/libc/src/pthread/pthread_barrier_init.cpp
@@ -0,0 +1,26 @@
+//===-- Implementation of the pthread_barrier_init function ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "pthread_barrier_init.h"
+
+#include "hdr/types/pthread_barrier_t.h"
+#include "hdr/types/pthread_barrierattr_t.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/__support/threads/linux/barrier.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(int, pthread_barrier_init,
+                   (pthread_barrier_t * b,
+                    const pthread_barrierattr_t *__restrict attr,
+                    unsigned count)) {
+  return Barrier::init(reinterpret_cast<Barrier *>(b), attr, count);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/pthread/pthread_barrier_init.h b/libc/src/pthread/pthread_barrier_init.h
new file mode 100644
index 0000000..bb17f3f
--- /dev/null
+++ b/libc/src/pthread/pthread_barrier_init.h
@@ -0,0 +1,24 @@
+//===-- Implementation header for pthread_barrier_init ----------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_INIT_H
+#define LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_INIT_H
+
+#include "hdr/types/pthread_barrier_t.h"
+#include "hdr/types/pthread_barrierattr_t.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+int pthread_barrier_init(pthread_barrier_t *b,
+                         const pthread_barrierattr_t *__restrict attr,
+                         unsigned count);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_INIT_H
diff --git a/libc/src/pthread/pthread_barrier_wait.cpp b/libc/src/pthread/pthread_barrier_wait.cpp
new file mode 100644
index 0000000..dbd1333
--- /dev/null
+++ b/libc/src/pthread/pthread_barrier_wait.cpp
@@ -0,0 +1,22 @@
+//===-- Implementation of the pthread_barrier_wait function ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "pthread_barrier_wait.h"
+
+#include "hdr/types/pthread_barrier_t.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/__support/threads/linux/barrier.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(int, pthread_barrier_wait, (pthread_barrier_t * b)) {
+  return reinterpret_cast<Barrier *>(b)->wait();
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/pthread/pthread_barrier_wait.h b/libc/src/pthread/pthread_barrier_wait.h
new file mode 100644
index 0000000..16ddc06
--- /dev/null
+++ b/libc/src/pthread/pthread_barrier_wait.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for pthread_barrier_wait ----------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_WAIT_H
+#define LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_WAIT_H
+
+#include "hdr/types/pthread_barrier_t.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+int pthread_barrier_wait(pthread_barrier_t *b);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_PTHREAD_PTHREAD_BARRIER_WAIT_H