1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// Copyright 2015 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.util;
import static com.google.common.base.StandardSystemProperty.OS_ARCH;
import com.google.common.collect.ImmutableSet;
/**
* Detects the CPU of the running JVM and returns a describing enum value.
*/
public enum CPU {
X86_32("x86_32", ImmutableSet.of("i386", "i486", "i586", "i686", "i786", "x86")),
X86_64("x86_64", ImmutableSet.of("amd64", "x86_64", "x64")),
PPC("ppc", ImmutableSet.of("ppc", "ppc64", "ppc64le")),
ARM("arm", ImmutableSet.of("arm", "armv7l")),
AARCH64("aarch64", ImmutableSet.of("aarch64")),
S390X("s390x", ImmutableSet.of("s390x", "s390")),
UNKNOWN("unknown", ImmutableSet.<String>of());
private final String canonicalName;
private final ImmutableSet<String> archs;
CPU(String canonicalName, ImmutableSet<String> archs) {
this.canonicalName = canonicalName;
this.archs = archs;
}
/**
* The current CPU.
*/
public static CPU getCurrent() {
return HOST_CPU;
}
public String getCanonicalName() {
return canonicalName;
}
private static CPU determineCurrentCpu() {
String currentArch = OS_ARCH.value();
for (CPU cpu : CPU.values()) {
if (cpu.archs.contains(currentArch)) {
return cpu;
}
}
return CPU.UNKNOWN;
}
private static final CPU HOST_CPU = determineCurrentCpu();
}
|
