1 //===-- Linux implementation of close -------------------------------------===// 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/close.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 <sys/syscall.h> // For syscall numbers. 16 17 namespace LIBC_NAMESPACE { 18 19 LLVM_LIBC_FUNCTION(int, close, (int fd)) { 20 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_close, fd); 21 if (ret < 0) { 22 libc_errno = -ret; 23 return -1; 24 } 25 return ret; 26 } 27 28 } // namespace LIBC_NAMESPACE 29