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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// 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.rules.cpp;
import com.google.devtools.build.lib.analysis.util.AnalysisMock;
import com.google.devtools.build.lib.util.CPU;
import com.google.devtools.build.lib.util.OS;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig;
import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.DefaultCpuToolchain;
import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.ToolPath;
import com.google.protobuf.TextFormat;
import java.io.IOException;
/**
* Helper class for the creation of crosstool toolchain factories.
*/
public class CrosstoolConfigurationHelper {
public static Path overwriteCrosstoolFile(Path workspace, String content) throws IOException {
Path crosstool =
workspace.getRelative(AnalysisMock.get().ccSupport().getMockCrosstoolPath() + "/CROSSTOOL");
long newMTime = crosstool.exists() ? crosstool.getLastModifiedTime() + 1 : -1;
crosstool.delete();
FileSystemUtils.createDirectoryAndParents(crosstool.getParentDirectory());
FileSystemUtils.writeContentAsLatin1(crosstool, content);
crosstool.setLastModifiedTime(newMTime);
return crosstool;
}
/**
* Overwrites the default CROSSTOOL file with one obtained by merging the simple complete
* toolchain with the given additional partial toolchain. Only {@code --cpu=piii} is valid.
*/
public static void overwriteCrosstoolWithToolchain(
Path workspace, CrosstoolConfig.CToolchain partial) throws IOException {
CrosstoolConfig.CrosstoolRelease.Builder release =
CrosstoolConfig.CrosstoolRelease.newBuilder();
release.mergeFrom(simpleCompleteToolchainProto());
CrosstoolConfig.CToolchain.Builder toolchain = CrosstoolConfig.CToolchain.newBuilder();
toolchain.mergeFrom(release.getToolchain(0));
toolchain.mergeFrom(partial);
release.setToolchain(0, toolchain.build());
overwriteCrosstoolFile(workspace, TextFormat.printToString(release.build()));
}
public static String defaultCpu() {
if (OS.getCurrent() == OS.WINDOWS) {
return "x64_windows";
} else if (OS.getCurrent() == OS.LINUX) {
switch (CPU.getCurrent()) {
case X86_32:
return "piii";
case X86_64:
return "k8";
case PPC:
return "ppc";
case ARM:
return "arm";
case S390X:
return "s390x";
default:
return "unknown";
}
}
return OS.getCurrent() == OS.DARWIN ? "darwin" : "k8";
}
public static CrosstoolConfig.CrosstoolRelease simpleCompleteToolchainProto() {
CrosstoolConfig.CrosstoolRelease.Builder builder =
CrosstoolConfig.CrosstoolRelease.newBuilder()
.setMajorVersion("12")
.setMinorVersion("0")
.setDefaultTargetCpu(defaultCpu())
.addDefaultToolchain(
DefaultCpuToolchain.newBuilder()
.setCpu(defaultCpu())
.setToolchainIdentifier(defaultCpu() + "-toolchain"));
CrosstoolConfig.CToolchain.Builder toolchainBuilder = newIncompleteToolchain();
toolchainBuilder
.setToolchainIdentifier(defaultCpu() + "-toolchain")
.setHostSystemName("i686-unknown-linux-gnu")
.setTargetSystemName("i686-unknown-linux-gnu")
.setTargetCpu("k8")
.setTargetLibc("glibc-2.3.6")
.setCompiler("gcc-4.3.1")
.setAbiVersion("gcc-3.4")
.setAbiLibcVersion("2.3.2")
// add a submessage that implies support for '.so' files
.addLinkingModeFlags(CrosstoolConfig.LinkingModeFlags.newBuilder()
.setMode(CrosstoolConfig.LinkingMode.DYNAMIC))
.addCxxBuiltinIncludeDirectory("/include/directory");
builder.addToolchain(toolchainBuilder);
return builder.build();
}
private static CrosstoolConfig.CToolchain.Builder newIncompleteToolchain() {
CrosstoolConfig.CToolchain.Builder builder = CrosstoolConfig.CToolchain.newBuilder();
for (String tool :
new String[] {
"ar",
"cpp",
"gcc",
"gcov",
"ld",
"compat-ld",
"nm",
"objcopy",
"objdump",
"strip",
"dwp",
"gcov-tool"
}) {
builder.addToolPath(ToolPath.newBuilder().setName(tool).setPath(tool));
}
return builder;
}
}
|
