[C++20][modules] Fix std::initializer_list recognition if it's exported out of a...
[llvm-project.git] / libc / src / unistd / linux / pipe2.cpp
blobebe7e0114ae998deb8898c4d4d9f09710e257b92
1 //===-- Linux implementation of pipe --------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
9 #include "src/unistd/pipe2.h"
11 #include "src/__support/OSUtil/syscall.h" // For internal syscall function.
12 #include "src/__support/common.h"
13 #include "src/__support/macros/config.h"
14 #include "src/errno/libc_errno.h"
15 #include <sys/syscall.h> // For syscall numbers.
17 namespace LIBC_NAMESPACE_DECL {
19 LLVM_LIBC_FUNCTION(int, pipe2, (int pipefd[2], int flags)) {
20 int ret = LIBC_NAMESPACE::syscall_impl<int>(
21 SYS_pipe2, reinterpret_cast<long>(pipefd), flags);
22 if (ret < 0) {
23 libc_errno = -ret;
24 return -1;
26 MSAN_UNPOISON(pipefd, sizeof(int) * 2);
27 return ret;
30 } // namespace LIBC_NAMESPACE_DECL