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 | |
18 | namespace LIBC_NAMESPACE { |
19 | |
20 | LLVM_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 | |