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