| // 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.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()); |
| 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; |
| } |
| } |