1//===-- Linux implementation of linkat ------------------------------------===//
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//===----------------------------------------------------------------------===//
8
9#include "src/unistd/linkat.h"
10
11#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
12#include "src/__support/common.h"
13
14#include "src/errno/libc_errno.h"
15#include <fcntl.h>
16#include <sys/syscall.h> // For syscall numbers.
17
18namespace LIBC_NAMESPACE {
19
20LLVM_LIBC_FUNCTION(int, linkat,
21 (int fd1, const char *path1, int fd2, const char *path2,
22 int flags)) {
23 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_linkat, ts: fd1, ts: path1, ts: fd2,
24 ts: path2, ts: flags);
25 if (ret < 0) {
26 libc_errno = -ret;
27 return -1;
28 }
29 return ret;
30}
31
32} // namespace LIBC_NAMESPACE
33

source code of libc/src/unistd/linux/linkat.cpp