// 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.bazel.rules.android.ndkcrosstools.r10e;
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.rules.cpp.CppConfiguration;
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 MIPS. These values are based on the setup.mk files in the Android NDK
* toolchain directories.
*/
class MipsCrosstools {
private final NdkPaths ndkPaths;
private final StlImpl stlImpl;
MipsCrosstools(NdkPaths ndkPaths, StlImpl stlImpl) {
this.ndkPaths = ndkPaths;
this.stlImpl = stlImpl;
}
ImmutableList<CToolchain.Builder> createCrosstools() {
ImmutableList.Builder<CToolchain.Builder> toolchains = ImmutableList.builder();
toolchains.addAll(createMips64Toolchains());
toolchains.addAll(createMipsToolchains());
return toolchains.build();
}
private List<CToolchain.Builder> createMips64Toolchains() {
ImmutableList.Builder<CToolchain.Builder> toolchainsListBuilder = ImmutableList.builder();
toolchainsListBuilder.add(createBaseMipsToolchain()
.setToolchainIdentifier("mips64el-linux-android-4.9")
.setTargetSystemName("mips64el-linux-android")
.setTargetCpu("mips64")
.setCompiler("gcc-4.9")
.addAllToolPath(ndkPaths.createToolpaths(
"mips64el-linux-android-4.9", "mips64el-linux-android",
// mips64 toolchain doesn't have the dwp tool.
CppConfiguration.Tool.DWP))
.addAllCxxBuiltinIncludeDirectory(
ndkPaths.createGccToolchainBuiltinIncludeDirectories(
"mips64el-linux-android-4.9", "mips64el-linux-android", "4.9"))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("mips64")));
// The flags for mips64 clang 3.5 and 3.6 are the same, they differ only in the LLVM version
// given in their tool paths.
for (String clangVersion : new String[] { "3.5", "3.6" }) {
toolchainsListBuilder.add(createBaseMipsClangToolchain("mips64", "4.9", clangVersion)
.setToolchainIdentifier("mips64el-linux-android-clang" + clangVersion)
.setTargetSystemName("mips64el-linux-android")
.setTargetCpu("mips64")
.addAllToolPath(ndkPaths.createClangToolpaths(
"mips64el-linux-android-4.9", "mips64el-linux-android", clangVersion,
CppConfiguration.Tool.DWP))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("mips64")));
}
List<CToolchain.Builder> toolchains = toolchainsListBuilder.build();
stlImpl.addStlImpl(toolchains, "4.9");
return toolchains;
}
private List<CToolchain.Builder> createMipsToolchains() {
ImmutableList.Builder<CToolchain.Builder> toolchainsListBuilder = ImmutableList.builder();
// The gcc-4.8 mips toolchain doesn't have dwp or gcov-tool.
toolchainsListBuilder.add(
createMipsToolchain("4.8", CppConfiguration.Tool.DWP, CppConfiguration.Tool.GCOVTOOL));
// The gcc-4.9 mips toolchain doesn't have the dwp tool.
toolchainsListBuilder.add(createMipsToolchain("4.9", CppConfiguration.Tool.DWP));
// The flags for mips clang 3.5 and 3.6 are the same, they differ only in the LLVM version
// given in their tool paths.
for (String clangVersion : new String[] { "3.5", "3.6" }) {
CToolchain.Builder mipsClang = createBaseMipsClangToolchain("mips", "4.8", clangVersion)
// Purposefully no hyphen between "clang" and clang version.
.setToolchainIdentifier("mipsel-linux-android-clang" + clangVersion)
.setTargetSystemName("mipsel-linux-android")
.setTargetCpu("mips")
.addAllToolPath(ndkPaths.createClangToolpaths(
"mipsel-linux-android-4.8", "mipsel-linux-android", clangVersion,
CppConfiguration.Tool.DWP, CppConfiguration.Tool.GCOVTOOL))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("mips"));
stlImpl.addStlImpl(mipsClang, "4.8");
toolchainsListBuilder.add(mipsClang);
}
return toolchainsListBuilder.build();
}
private CToolchain.Builder createMipsToolchain(
String gccVersion, CppConfiguration.Tool... excludedTools) {
CToolchain.Builder toolchain = createBaseMipsToolchain()
.setToolchainIdentifier("mipsel-linux-android-" + gccVersion)
.setTargetSystemName("mipsel-linux-android")
.setTargetCpu("mips")
.setCompiler("gcc-" + gccVersion)
.addAllToolPath(ndkPaths.createToolpaths(
"mipsel-linux-android-" + gccVersion, "mipsel-linux-android",
excludedTools))
.addAllCxxBuiltinIncludeDirectory(
ndkPaths.createGccToolchainBuiltinIncludeDirectories(
"mipsel-linux-android-" + gccVersion, "mipsel-linux-android", gccVersion))
.setBuiltinSysroot(ndkPaths.createBuiltinSysroot("mips"));
stlImpl.addStlImpl(toolchain, gccVersion);
return toolchain;
}
private CToolchain.Builder createBaseMipsToolchain() {
return CToolchain.newBuilder()
// Compiler flags
.addCompilerFlag("-fpic")
.addCompilerFlag("-fno-strict-aliasing")
.addCompilerFlag("-finline-functions")
.addCompilerFlag("-ffunction-sections")
.addCompilerFlag("-funwind-tables")
.addCompilerFlag("-fmessage-length=0")
.addCompilerFlag("-fno-inline-functions-called-once")
.addCompilerFlag("-fgcse-after-reload")
.addCompilerFlag("-frerun-cse-after-loop")
.addCompilerFlag("-frename-registers")
.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")
.addCompilerFlag("-fomit-frame-pointer")
.addCompilerFlag("-funswitch-loops")
.addCompilerFlag("-finline-limit=300"))
// Additional debug flags
.addCompilationModeFlags(CompilationModeFlags.newBuilder()
.setMode(CompilationMode.DBG)
.addCompilerFlag("-O0")
.addCompilerFlag("-g")
.addCompilerFlag("-fno-omit-frame-pointer"));
}
private CToolchain.Builder createBaseMipsClangToolchain(
String mipsArch, String gccVersion, String clangVersion) {
String gccToolchain = ndkPaths.createGccToolchainPath(
String.format("%s-linux-android-%s", mipsArch, gccVersion));
String llvmTriple = mipsArch + "-none-linux-android";
return CToolchain.newBuilder()
.setCompiler("clang" + clangVersion)
// Compiler flags
.addCompilerFlag("-gcc-toolchain")
.addCompilerFlag(gccToolchain)
.addCompilerFlag("-target")
.addCompilerFlag(llvmTriple)
.addCompilerFlag("-fpic")
.addCompilerFlag("-fno-strict-aliasing")
.addCompilerFlag("-finline-functions")
.addCompilerFlag("-ffunction-sections")
.addCompilerFlag("-funwind-tables")
.addCompilerFlag("-fmessage-length=0")
.addCompilerFlag("-Wno-invalid-command-line-argument")
.addCompilerFlag("-Wno-unused-command-line-argument")
.addCompilerFlag("-no-canonical-prefixes")
.addCompilerFlag("-fno-canonical-system-headers")
// 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")
.addCompilerFlag("-fomit-frame-pointer"))
// Additional debug flags
.addCompilationModeFlags(CompilationModeFlags.newBuilder()
.setMode(CompilationMode.DBG)
.addCompilerFlag("-O0")
.addCompilerFlag("-g")
.addCompilerFlag("-fno-omit-frame-pointer"));
}
}