jdk

1
/*
2
 * Copyright (c) 2006, 2023, 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 "runtime/vm_version.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, nullptr, 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

49