// 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.r12;
import com.google.common.collect.ImmutableList;
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.CompilationMode;
import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.CompilationModeFlags;
import java.util.List;
/**
* Crosstool definitions for ARM. These values are based on the setup.mk files in the Android NDK
* toolchain directories.
*/
class ArmCrosstools {
private final NdkPaths ndkPaths;
private final StlImpl stlImpl;
ArmCrosstools(NdkPaths ndkPaths, StlImpl stlImpl) {
this.ndkPaths = ndkPaths;
this.stlImpl = stlImpl;
}
ImmutableList<CToolchain.Builder> createCrosstools() {
ImmutableList.Builder<CToolchain.Builder> toolchains = ImmutableList.builder();
toolchains.add(createAarch64Toolchain());
toolchains.add(createAarch64ClangToolchain());
toolchains.addAll(createArmeabiToolchains());
toolchains.addAll(createArmeabiClangToolchain());
return toolchains.build();
}
private CToolchain.Builder createAarch64Toolchain() {
String toolchainName = "aarch64-linux-android-4.9";
String targetPlatform = "aarch64-linux-android";
CToolchain.Builder toolchain =
CToolchain.newBuilder()
.setToolchainIdentifier("aarch64-linux-android-4.9")
.setTargetSystemName("aarch64-linux-android")
.setTargetCpu("arm64-v8a")
.setCompiler("gcc-4.9")
.addAllToolPath(ndkPaths.createToolpaths(toolchainName, targetPlatform))
.addAllCxxBuiltinIncludeDirectory(
ndkPaths.createGccToolchainBuiltinIncludeDirectories(
toolchainName, targetPlatform, "4.9.x"))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("arm64"))
// Compiler flags
.addCompilerFlag("-fpic")
.addCompilerFlag("-ffunction-sections")
.addCompilerFlag("-funwind-tables")
.addCompilerFlag("-fstack-protector-strong")
.addCompilerFlag("-no-canonical-prefixes")
.addCompilerFlag("-fno-canonical-system-headers")
// Linker flags
.addLinkerFlag("-no-canonical-prefixes")
// Additional release flags
.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.OPT)
.addCompilerFlag("-O2")
.addCompilerFlag("-g")
.addCompilerFlag("-DNDEBUG"))
// Additional debug flags
.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.DBG)
.addCompilerFlag("-O0")
.addCompilerFlag("-UNDEBUG"));
stlImpl.addStlImpl(toolchain, "4.9");
return toolchain;
}
private CToolchain.Builder createAarch64ClangToolchain() {
String toolchainName = "aarch64-linux-android-4.9";
String targetPlatform = "aarch64-linux-android";
String gccToolchain = ndkPaths.createGccToolchainPath(toolchainName);
String llvmTriple = "aarch64-none-linux-android";
CToolchain.Builder toolchain =
CToolchain.newBuilder()
.setToolchainIdentifier("aarch64-linux-android-clang3.8")
.setTargetSystemName("aarch64-linux-android")
.setTargetCpu("arm64-v8a")
.setCompiler("clang3.8")
.addAllToolPath(ndkPaths.createClangToolpaths(toolchainName, targetPlatform, null))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("arm64"))
// Compiler flags
.addCompilerFlag("-gcc-toolchain")
.addCompilerFlag(gccToolchain)
.addCompilerFlag("-target")
.addCompilerFlag(llvmTriple)
.addCompilerFlag("-ffunction-sections")
.addCompilerFlag("-funwind-tables")
.addCompilerFlag("-fstack-protector-strong")
.addCompilerFlag("-fpic")
.addCompilerFlag("-Wno-invalid-command-line-argument")
.addCompilerFlag("-Wno-unused-command-line-argument")
.addCompilerFlag("-no-canonical-prefixes")
// Linker flags
.addLinkerFlag("-gcc-toolchain")
.addLinkerFlag(gccToolchain)
.addLinkerFlag("-target")
.addLinkerFlag(llvmTriple)
.addLinkerFlag("-no-canonical-prefixes")
// Additional release flags
.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.OPT)
.addCompilerFlag("-O2")
.addCompilerFlag("-g")
.addCompilerFlag("-DNDEBUG"))
// Additional debug flags
.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.DBG)
.addCompilerFlag("-O0")
.addCompilerFlag("-UNDEBUG"));
stlImpl.addStlImpl(toolchain, "4.9");
return toolchain;
}
private List<CToolchain.Builder> createArmeabiToolchains() {
ImmutableList<CToolchain.Builder> toolchains =
ImmutableList.of(
createBaseArmeabiToolchain()
.setToolchainIdentifier("arm-linux-androideabi-4.9")
.setTargetCpu("armeabi")
.addCompilerFlag("-march=armv5te")
.addCompilerFlag("-mtune=xscale")
.addCompilerFlag("-msoft-float"),
createBaseArmeabiToolchain()
.setToolchainIdentifier("arm-linux-androideabi-4.9-v7a")
.setTargetCpu("armeabi-v7a")
.addCompilerFlag("-march=armv7-a")
.addCompilerFlag("-mfpu=vfpv3-d16")
.addCompilerFlag("-mfloat-abi=softfp")
.addLinkerFlag("-march=armv7-a")
.addLinkerFlag("-Wl,--fix-cortex-a8"));
stlImpl.addStlImpl(toolchains, "4.9");
return toolchains;
}
/** Flags common to arm-linux-androideabi* */
private CToolchain.Builder createBaseArmeabiToolchain() {
String toolchainName = "arm-linux-androideabi-4.9";
String targetPlatform = "arm-linux-androideabi";
CToolchain.Builder toolchain =
CToolchain.newBuilder()
.setTargetSystemName(targetPlatform)
.setCompiler("gcc-4.9")
.addAllToolPath(ndkPaths.createToolpaths(toolchainName, targetPlatform))
.addAllCxxBuiltinIncludeDirectory(
ndkPaths.createGccToolchainBuiltinIncludeDirectories(
toolchainName, targetPlatform, "4.9.x"))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("arm"))
// Compiler flags
.addCompilerFlag("-fstack-protector-strong")
.addCompilerFlag("-fpic")
.addCompilerFlag("-ffunction-sections")
.addCompilerFlag("-funwind-tables")
.addCompilerFlag("-no-canonical-prefixes")
.addCompilerFlag("-fno-canonical-system-headers")
// Linker flags
.addLinkerFlag("-no-canonical-prefixes");
toolchain.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.OPT)
.addCompilerFlag("-mthumb")
.addCompilerFlag("-Os")
.addCompilerFlag("-g")
.addCompilerFlag("-DNDEBUG"));
toolchain.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.DBG)
.addCompilerFlag("-g")
.addCompilerFlag("-mthumb")
.addCompilerFlag("-O0")
.addCompilerFlag("-UNDEBUG"));
return toolchain;
}
private List<CToolchain.Builder> createArmeabiClangToolchain() {
ImmutableList<CToolchain.Builder> toolchains =
ImmutableList.of(
createBaseArmeabiClangToolchain()
.setToolchainIdentifier("arm-linux-androideabi-clang3.8")
.setTargetCpu("armeabi")
.addCompilerFlag("-target")
.addCompilerFlag("armv5te-none-linux-androideabi") // LLVM_TRIPLE
.addCompilerFlag("-march=armv5te")
.addCompilerFlag("-mtune=xscale")
.addCompilerFlag("-msoft-float")
.addLinkerFlag("-target")
// LLVM_TRIPLE
.addLinkerFlag("armv5te-none-linux-androideabi"),
createBaseArmeabiClangToolchain()
.setToolchainIdentifier("arm-linux-androideabi-clang3.8-v7a")
.setTargetCpu("armeabi-v7a")
.addCompilerFlag("-target")
.addCompilerFlag("armv7-none-linux-androideabi") // LLVM_TRIPLE
.addCompilerFlag("-march=armv7-a")
.addCompilerFlag("-mfloat-abi=softfp")
.addCompilerFlag("-mfpu=vfpv3-d16")
.addLinkerFlag("-target")
.addLinkerFlag("armv7-none-linux-androideabi") // LLVM_TRIPLE
.addLinkerFlag("-Wl,--fix-cortex-a8"));
stlImpl.addStlImpl(toolchains, "4.9");
return toolchains;
}
private CToolchain.Builder createBaseArmeabiClangToolchain() {
String toolchainName = "arm-linux-androideabi-4.9";
String targetPlatform = "arm-linux-androideabi";
String gccToolchain = ndkPaths.createGccToolchainPath("arm-linux-androideabi-4.9");
CToolchain.Builder toolchain =
CToolchain.newBuilder()
.setTargetSystemName("arm-linux-androideabi")
.setCompiler("clang3.8")
.addAllToolPath(ndkPaths.createClangToolpaths(toolchainName, targetPlatform, null))
.addCxxBuiltinIncludeDirectory(
ndkPaths.createClangToolchainBuiltinIncludeDirectory(
AndroidNdkCrosstoolsR12.CLANG_VERSION))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("arm"))
// Compiler flags
.addCompilerFlag("-gcc-toolchain")
.addCompilerFlag(gccToolchain)
.addCompilerFlag("-fpic")
.addCompilerFlag("-ffunction-sections")
.addCompilerFlag("-funwind-tables")
.addCompilerFlag("-fstack-protector-strong")
.addCompilerFlag("-Wno-invalid-command-line-argument")
.addCompilerFlag("-Wno-unused-command-line-argument")
.addCompilerFlag("-no-canonical-prefixes")
.addCompilerFlag("-fno-integrated-as")
// Linker flags
.addLinkerFlag("-gcc-toolchain")
.addLinkerFlag(gccToolchain)
.addLinkerFlag("-no-canonical-prefixes");
toolchain.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.OPT)
.addCompilerFlag("-mthumb")
.addCompilerFlag("-Os")
.addCompilerFlag("-g")
.addCompilerFlag("-DNDEBUG"));
toolchain.addCompilationModeFlags(
CompilationModeFlags.newBuilder()
.setMode(CompilationMode.DBG)
.addCompilerFlag("-g")
.addCompilerFlag("-fno-strict-aliasing")
.addCompilerFlag("-O0")
.addCompilerFlag("-UNDEBUG"));
return toolchain;
}
}