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