1 //===-- Linux implementation of uname -------------------------------------===// 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/utsname/uname.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/syscall.h> // For syscall numbers. 17 #include <sys/utsname.h> 18 19 namespace LIBC_NAMESPACE_DECL { 20 21 LLVM_LIBC_FUNCTION(int, uname, (struct utsname * name)) { 22 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_uname, name); 23 24 if (ret >= 0) 25 return 1; 26 libc_errno = -ret; 27 return -1; 28 } 29 30 } // namespace LIBC_NAMESPACE_DECL 31