1 //===-- Linux implementation of mkdir -------------------------------------===//
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/sys/stat/mkdir.h"
10 
11 #include "src/__support/OSUtil/syscall.h" // For internal syscall function.
12 #include "src/__support/common.h"
13 
14 #include <errno.h>
15 #include <fcntl.h>
16 #include <sys/stat.h>
17 #include <sys/syscall.h> // For syscall numbers.
18 
19 namespace __llvm_libc {
20 
21 LLVM_LIBC_FUNCTION(int, mkdir, (const char *path, mode_t mode)) {
22 #ifdef SYS_mkdir
23   long ret = __llvm_libc::syscall(SYS_mkdir, path, mode);
24 #elif defined(SYS_mkdirat)
25   long ret = __llvm_libc::syscall(SYS_mkdirat, AT_FDCWD, path, mode);
26 #else
27 #error "mkdir and mkdirat syscalls not available."
28 #endif
29 
30   if (ret < 0) {
31     errno = -ret;
32     return -1;
33   }
34   return 0;
35 }
36 
37 } // namespace __llvm_libc
38