| // Copyright 2016 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.bazel.rules.android.ndkcrosstools.r11; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.bazel.rules.android.ndkcrosstools.NdkPaths; |
| import com.google.devtools.build.lib.bazel.rules.android.ndkcrosstools.StlImpl; |
| import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.CToolchain; |
| import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.CrosstoolRelease; |
| import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.DefaultCpuToolchain; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map.Entry; |
| |
| /** |
| * Generates a CrosstoolRelease proto for the Android NDK. |
| */ |
| final class AndroidNdkCrosstoolsR11 { |
| /** {@code ./ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --version} */ |
| static final String CLANG_VERSION = "3.8.243773"; |
| |
| private AndroidNdkCrosstoolsR11() {} |
| |
| /** |
| * Creates a CrosstoolRelease proto for the Android NDK, given the API level to use and the |
| * release revision. The crosstools are generated through code rather than checked in as a flat |
| * file to reduce the amount of templating needed (for parameters like the release name and |
| * certain paths), to reduce duplication, and to make it easier to support future versions of the |
| * NDK. TODO(bazel-team): Eventually we should move this into Skylark so the crosstools can be |
| * updated independently of Bazel itself. |
| * |
| * @return A CrosstoolRelease for the Android NDK. |
| */ |
| public static CrosstoolRelease create(NdkPaths ndkPaths, StlImpl stlImpl, String hostPlatform) { |
| return CrosstoolRelease.newBuilder() |
| .setMajorVersion("android") |
| .setMinorVersion("") |
| .setDefaultTargetCpu("armeabi") |
| .addAllDefaultToolchain(getDefaultCpuToolchains(stlImpl)) |
| .addAllToolchain(createToolchains(ndkPaths, stlImpl, hostPlatform)) |
| .build(); |
| } |
| |
| private static ImmutableList<CToolchain> createToolchains( |
| NdkPaths ndkPaths, StlImpl stlImpl, String hostPlatform) { |
| |
| List<CToolchain.Builder> toolchainBuilders = new ArrayList<>(); |
| toolchainBuilders.addAll(new ArmCrosstools(ndkPaths, stlImpl).createCrosstools()); |
| toolchainBuilders.addAll(new MipsCrosstools(ndkPaths, stlImpl).createCrosstools()); |
| toolchainBuilders.addAll(new X86Crosstools(ndkPaths, stlImpl).createCrosstools()); |
| |
| ImmutableList.Builder<CToolchain> toolchains = new ImmutableList.Builder<>(); |
| |
| // Set attributes common to all toolchains. |
| for (CToolchain.Builder toolchainBuilder : toolchainBuilders) { |
| toolchainBuilder |
| .setHostSystemName(hostPlatform) |
| .setTargetLibc("local") |
| .setAbiVersion(toolchainBuilder.getTargetCpu()) |
| .setAbiLibcVersion("local"); |
| |
| // builtin_sysroot is set individually on each toolchain. |
| toolchainBuilder.addCxxBuiltinIncludeDirectory("%sysroot%/usr/include"); |
| |
| toolchains.add(toolchainBuilder.build()); |
| } |
| |
| return toolchains.build(); |
| } |
| |
| private static ImmutableList<DefaultCpuToolchain> getDefaultCpuToolchains(StlImpl stlImpl) { |
| // TODO(bazel-team): It would be better to auto-generate this somehow. |
| |
| ImmutableMap<String, String> defaultCpus = ImmutableMap.<String, String>builder() |
| // arm |
| .put("armeabi", "arm-linux-androideabi-4.9") |
| .put("armeabi-v7a", "arm-linux-androideabi-4.9-v7a") |
| .put("armeabi-v7a-hard", "arm-linux-androideabi-4.9-v7a-hard") |
| .put("armeabi-thumb", "arm-linux-androideabi-4.9-thumb") |
| .put("armeabi-v7a-thumb", "arm-linux-androideabi-4.9-v7a-thumb") |
| .put("armeabi-v7a-hard-thumb", "arm-linux-androideabi-4.9-v7a-hard-thumb") |
| .put("arm64-v8a", "aarch64-linux-android-4.9") |
| |
| // mips |
| .put("mips", "mipsel-linux-android-4.9") |
| .put("mips64", "mips64el-linux-android-4.9") |
| |
| // x86 |
| .put("x86", "x86-4.9") |
| .put("x86_64", "x86_64-4.9") |
| .build(); |
| |
| ImmutableList.Builder<DefaultCpuToolchain> defaultCpuToolchains = ImmutableList.builder(); |
| for (Entry<String, String> defaultCpu : defaultCpus.entrySet()) { |
| defaultCpuToolchains.add(DefaultCpuToolchain.newBuilder() |
| .setCpu(defaultCpu.getKey()) |
| .setToolchainIdentifier(defaultCpu.getValue() + "-" + stlImpl.getName()) |
| .build()); |
| } |
| return defaultCpuToolchains.build(); |
| } |
| } |