1 /* 2 * Copyright (c) 2006, 2021, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "runtime/os.hpp" 27 #include "vm_version_x86.hpp" 28 29 #ifdef __APPLE__ 30 31 #include <sys/types.h> 32 #include <sys/sysctl.h> 33 34 bool VM_Version::is_cpu_emulated() { 35 int ret = 0; 36 size_t size = sizeof(ret); 37 // Is this process being ran in Rosetta (i.e. emulation) mode on macOS? 38 if (sysctlbyname("sysctl.proc_translated", &ret, &size, NULL, 0) == -1) { 39 // errno == ENOENT is a valid response, but anything else is a real error 40 if (errno != ENOENT) { 41 warning("unable to lookup sysctl.proc_translated"); 42 } 43 } 44 return (ret==1); 45 } 46 47 #endif 48