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