| // Copyright 2014 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.common.annotations.VisibleForTesting; |
| import com.google.common.base.Function; |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableListMultimap; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableMap.Builder; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.analysis.config.BuildConfiguration; |
| import com.google.devtools.build.lib.analysis.config.CompilationMode; |
| import com.google.devtools.build.lib.analysis.platform.ToolchainInfo; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| import com.google.devtools.build.lib.collect.nestedset.Order; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.events.Location; |
| import com.google.devtools.build.lib.rules.cpp.CcToolchainFeatures.Variables; |
| import com.google.devtools.build.lib.rules.cpp.CppConfiguration.Tool; |
| import com.google.devtools.build.lib.rules.cpp.FdoSupport.FdoMode; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; |
| import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable; |
| import com.google.devtools.build.lib.skylarkinterface.SkylarkModule; |
| import com.google.devtools.build.lib.util.Pair; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.CToolchain; |
| import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.CToolchain.OptionalFlag; |
| import com.google.devtools.build.lib.view.config.crosstool.CrosstoolConfig.LipoMode; |
| import java.util.Map; |
| import javax.annotation.Nullable; |
| |
| /** Information about a C++ compiler used by the <code>cc_*</code> rules. */ |
| @SkylarkModule(name = "CcToolchainInfo", doc = "Information about the C++ compiler being used.") |
| @Immutable |
| @AutoCodec |
| public final class CcToolchainProvider extends ToolchainInfo { |
| public static final String SKYLARK_NAME = "CcToolchainInfo"; |
| |
| /** An empty toolchain to be returned in the error case (instead of null). */ |
| public static final CcToolchainProvider EMPTY_TOOLCHAIN_IS_ERROR = |
| new CcToolchainProvider( |
| /* values= */ ImmutableMap.of(), |
| /* cppConfiguration= */ null, |
| /* toolchainInfo= */ null, |
| /* crosstoolTopPathFragment= */ null, |
| /* crosstool= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* crosstoolMiddleman= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* compile= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* strip= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* objCopy= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* as= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* ar= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* link= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* interfaceSoBuilder= */ null, |
| /* dwp= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* coverage= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* libcLink= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* staticRuntimeLinkInputs= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* staticRuntimeLinkMiddleman= */ null, |
| /* dynamicRuntimeLinkInputs= */ NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER), |
| /* dynamicRuntimeLinkMiddleman= */ null, |
| /* dynamicRuntimeSolibDir= */ PathFragment.EMPTY_FRAGMENT, |
| CcCompilationInfo.EMPTY, |
| /* supportsParamFiles= */ false, |
| /* supportsHeaderParsing= */ false, |
| Variables.EMPTY, |
| /* builtinIncludeFiles= */ ImmutableList.<Artifact>of(), |
| /* coverageEnvironment= */ NestedSetBuilder.emptySet(Order.COMPILE_ORDER), |
| /* linkDynamicLibraryTool= */ null, |
| /* environment= */ ImmutableMap.<String, String>of(), |
| /* builtInIncludeDirectories= */ ImmutableList.<PathFragment>of(), |
| /* sysroot= */ null, |
| FdoMode.OFF); |
| |
| @Nullable private final CppConfiguration cppConfiguration; |
| private final CppToolchainInfo toolchainInfo; |
| private final PathFragment crosstoolTopPathFragment; |
| private final NestedSet<Artifact> crosstool; |
| private final NestedSet<Artifact> crosstoolMiddleman; |
| private final NestedSet<Artifact> compile; |
| private final NestedSet<Artifact> strip; |
| private final NestedSet<Artifact> objCopy; |
| private final NestedSet<Artifact> as; |
| private final NestedSet<Artifact> ar; |
| private final NestedSet<Artifact> link; |
| private final Artifact interfaceSoBuilder; |
| private final NestedSet<Artifact> dwp; |
| private final NestedSet<Artifact> coverage; |
| private final NestedSet<Artifact> libcLink; |
| private final NestedSet<Artifact> staticRuntimeLinkInputs; |
| @Nullable private final Artifact staticRuntimeLinkMiddleman; |
| private final NestedSet<Artifact> dynamicRuntimeLinkInputs; |
| @Nullable private final Artifact dynamicRuntimeLinkMiddleman; |
| private final PathFragment dynamicRuntimeSolibDir; |
| private final CcCompilationInfo ccCompilationInfo; |
| private final boolean supportsParamFiles; |
| private final boolean supportsHeaderParsing; |
| private final Variables buildVariables; |
| private final ImmutableList<Artifact> builtinIncludeFiles; |
| private final NestedSet<Pair<String, String>> coverageEnvironment; |
| @Nullable private final Artifact linkDynamicLibraryTool; |
| private final ImmutableMap<String, String> environment; |
| private final ImmutableList<PathFragment> builtInIncludeDirectories; |
| @Nullable private final PathFragment sysroot; |
| private final FdoMode fdoMode; |
| |
| public CcToolchainProvider( |
| ImmutableMap<String, Object> values, |
| @Nullable CppConfiguration cppConfiguration, |
| CppToolchainInfo toolchainInfo, |
| PathFragment crosstoolTopPathFragment, |
| NestedSet<Artifact> crosstool, |
| NestedSet<Artifact> crosstoolMiddleman, |
| NestedSet<Artifact> compile, |
| NestedSet<Artifact> strip, |
| NestedSet<Artifact> objCopy, |
| NestedSet<Artifact> as, |
| NestedSet<Artifact> ar, |
| NestedSet<Artifact> link, |
| Artifact interfaceSoBuilder, |
| NestedSet<Artifact> dwp, |
| NestedSet<Artifact> coverage, |
| NestedSet<Artifact> libcLink, |
| NestedSet<Artifact> staticRuntimeLinkInputs, |
| @Nullable Artifact staticRuntimeLinkMiddleman, |
| NestedSet<Artifact> dynamicRuntimeLinkInputs, |
| @Nullable Artifact dynamicRuntimeLinkMiddleman, |
| PathFragment dynamicRuntimeSolibDir, |
| CcCompilationInfo ccCompilationInfo, |
| boolean supportsParamFiles, |
| boolean supportsHeaderParsing, |
| Variables buildVariables, |
| ImmutableList<Artifact> builtinIncludeFiles, |
| NestedSet<Pair<String, String>> coverageEnvironment, |
| Artifact linkDynamicLibraryTool, |
| ImmutableMap<String, String> environment, |
| ImmutableList<PathFragment> builtInIncludeDirectories, |
| @Nullable PathFragment sysroot, |
| FdoMode fdoMode) { |
| super(values, Location.BUILTIN); |
| this.cppConfiguration = cppConfiguration; |
| this.toolchainInfo = toolchainInfo; |
| this.crosstoolTopPathFragment = crosstoolTopPathFragment; |
| this.crosstool = Preconditions.checkNotNull(crosstool); |
| this.crosstoolMiddleman = Preconditions.checkNotNull(crosstoolMiddleman); |
| this.compile = Preconditions.checkNotNull(compile); |
| this.strip = Preconditions.checkNotNull(strip); |
| this.objCopy = Preconditions.checkNotNull(objCopy); |
| this.as = Preconditions.checkNotNull(as); |
| this.ar = Preconditions.checkNotNull(ar); |
| this.link = Preconditions.checkNotNull(link); |
| this.interfaceSoBuilder = interfaceSoBuilder; |
| this.dwp = Preconditions.checkNotNull(dwp); |
| this.coverage = Preconditions.checkNotNull(coverage); |
| this.libcLink = Preconditions.checkNotNull(libcLink); |
| this.staticRuntimeLinkInputs = Preconditions.checkNotNull(staticRuntimeLinkInputs); |
| this.staticRuntimeLinkMiddleman = staticRuntimeLinkMiddleman; |
| this.dynamicRuntimeLinkInputs = Preconditions.checkNotNull(dynamicRuntimeLinkInputs); |
| this.dynamicRuntimeLinkMiddleman = dynamicRuntimeLinkMiddleman; |
| this.dynamicRuntimeSolibDir = Preconditions.checkNotNull(dynamicRuntimeSolibDir); |
| this.ccCompilationInfo = Preconditions.checkNotNull(ccCompilationInfo); |
| this.supportsParamFiles = supportsParamFiles; |
| this.supportsHeaderParsing = supportsHeaderParsing; |
| this.buildVariables = buildVariables; |
| this.builtinIncludeFiles = builtinIncludeFiles; |
| this.coverageEnvironment = coverageEnvironment; |
| this.linkDynamicLibraryTool = linkDynamicLibraryTool; |
| this.environment = environment; |
| this.builtInIncludeDirectories = builtInIncludeDirectories; |
| this.sysroot = sysroot; |
| this.fdoMode = fdoMode; |
| } |
| |
| /** Returns c++ Make variables. */ |
| public static Map<String, String> getCppBuildVariables( |
| Function<Tool, PathFragment> getToolPathFragment, |
| String targetLibc, |
| String compiler, |
| String targetCpu, |
| PathFragment crosstoolTopPathFragment, |
| String abiGlibcVersion, |
| String abi, |
| Map<String, String> additionalMakeVariables) { |
| ImmutableMap.Builder<String, String> result = ImmutableMap.builder(); |
| |
| // hardcoded CC->gcc setting for unit tests |
| result.put("CC", getToolPathFragment.apply(Tool.GCC).getPathString()); |
| |
| // Make variables provided by crosstool/gcc compiler suite. |
| result.put("AR", getToolPathFragment.apply(Tool.AR).getPathString()); |
| result.put("NM", getToolPathFragment.apply(Tool.NM).getPathString()); |
| result.put("LD", getToolPathFragment.apply(Tool.LD).getPathString()); |
| PathFragment objcopyTool = getToolPathFragment.apply(Tool.OBJCOPY); |
| if (objcopyTool != null) { |
| // objcopy is optional in Crosstool |
| result.put("OBJCOPY", objcopyTool.getPathString()); |
| } |
| result.put("STRIP", getToolPathFragment.apply(Tool.STRIP).getPathString()); |
| |
| PathFragment gcovtool = getToolPathFragment.apply(Tool.GCOVTOOL); |
| if (gcovtool != null) { |
| // gcov-tool is optional in Crosstool |
| result.put("GCOVTOOL", gcovtool.getPathString()); |
| } |
| |
| if (targetLibc.startsWith("glibc-")) { |
| result.put("GLIBC_VERSION", targetLibc.substring("glibc-".length())); |
| } else { |
| result.put("GLIBC_VERSION", targetLibc); |
| } |
| |
| result.put("C_COMPILER", compiler); |
| result.put("TARGET_CPU", targetCpu); |
| |
| // Deprecated variables |
| |
| // TODO(bazel-team): delete all of these. |
| result.put("CROSSTOOLTOP", crosstoolTopPathFragment.getPathString()); |
| |
| // TODO(kmensah): Remove when skylark dependencies can be updated to rely on |
| // CcToolchainProvider. |
| result.putAll(additionalMakeVariables); |
| |
| result.put("ABI_GLIBC_VERSION", abiGlibcVersion); |
| result.put("ABI", abi); |
| |
| return result.build(); |
| } |
| |
| @Override |
| public void addGlobalMakeVariables(Builder<String, String> globalMakeEnvBuilder) { |
| globalMakeEnvBuilder.putAll( |
| getCppBuildVariables( |
| this::getToolPathFragment, |
| getTargetLibc(), |
| getCompiler(), |
| getTargetCpu(), |
| crosstoolTopPathFragment, |
| getAbiGlibcVersion(), |
| getAbi(), |
| getAdditionalMakeVariables())); |
| } |
| |
| @SkylarkCallable( |
| name = "built_in_include_directories", |
| doc = "Returns the list of built-in directories of the compiler.", |
| structField = true |
| ) |
| public ImmutableList<PathFragment> getBuiltInIncludeDirectories() { |
| return builtInIncludeDirectories; |
| } |
| |
| /** Returns the {@link CToolchain} for this toolchain. */ |
| @VisibleForTesting |
| public CToolchain getToolchain() { |
| return toolchainInfo.getToolchain(); |
| } |
| |
| /** |
| * Returns all the files in Crosstool. Is not a middleman. |
| */ |
| public NestedSet<Artifact> getCrosstool() { |
| return crosstool; |
| } |
| |
| /** |
| * Returns a middleman for all the files in Crosstool. |
| */ |
| public NestedSet<Artifact> getCrosstoolMiddleman() { |
| return crosstoolMiddleman; |
| } |
| |
| /** |
| * Returns the files necessary for compilation. |
| */ |
| public NestedSet<Artifact> getCompile() { |
| return compile; |
| } |
| |
| /** |
| * Returns the files necessary for a 'strip' invocation. |
| */ |
| public NestedSet<Artifact> getStrip() { |
| return strip; |
| } |
| |
| /** |
| * Returns the files necessary for an 'objcopy' invocation. |
| */ |
| public NestedSet<Artifact> getObjcopy() { |
| return objCopy; |
| } |
| |
| /** |
| * Returns the files necessary for an 'as' invocation. May be empty if the CROSSTOOL |
| * file does not define as_files. |
| */ |
| public NestedSet<Artifact> getAs() { |
| return as; |
| } |
| |
| /** |
| * Returns the files necessary for an 'ar' invocation. May be empty if the CROSSTOOL |
| * file does not define ar_files. |
| */ |
| public NestedSet<Artifact> getAr() { |
| return ar; |
| } |
| |
| /** |
| * Returns the files necessary for linking, including the files needed for libc. |
| */ |
| public NestedSet<Artifact> getLink() { |
| return link; |
| } |
| |
| public NestedSet<Artifact> getDwp() { |
| return dwp; |
| } |
| |
| /** |
| * Returns the files necessary for capturing code coverage. |
| */ |
| public NestedSet<Artifact> getCoverage() { |
| return coverage; |
| } |
| |
| public NestedSet<Artifact> getLibcLink() { |
| return libcLink; |
| } |
| |
| /** |
| * Returns the static runtime libraries. |
| */ |
| public NestedSet<Artifact> getStaticRuntimeLinkInputs() { |
| return staticRuntimeLinkInputs; |
| } |
| |
| /** |
| * Returns an aggregating middleman that represents the static runtime libraries. |
| */ |
| @Nullable public Artifact getStaticRuntimeLinkMiddleman() { |
| return staticRuntimeLinkMiddleman; |
| } |
| |
| /** |
| * Returns the dynamic runtime libraries. |
| */ |
| public NestedSet<Artifact> getDynamicRuntimeLinkInputs() { |
| return dynamicRuntimeLinkInputs; |
| } |
| |
| /** |
| * Returns an aggregating middleman that represents the dynamic runtime libraries. |
| */ |
| @Nullable public Artifact getDynamicRuntimeLinkMiddleman() { |
| return dynamicRuntimeLinkMiddleman; |
| } |
| |
| /** |
| * Returns the name of the directory where the solib symlinks for the dynamic runtime libraries |
| * live. The directory itself will be under the root of the host configuration in the 'bin' |
| * directory. |
| */ |
| public PathFragment getDynamicRuntimeSolibDir() { |
| return dynamicRuntimeSolibDir; |
| } |
| |
| /** Returns the {@code CcCompilationInfo} for the toolchain. */ |
| public CcCompilationInfo getCcCompilationInfo() { |
| return ccCompilationInfo; |
| } |
| |
| /** |
| * Whether the toolchains supports parameter files. |
| */ |
| public boolean supportsParamFiles() { |
| return supportsParamFiles; |
| } |
| |
| /** |
| * Whether the toolchains supports header parsing. |
| */ |
| public boolean supportsHeaderParsing() { |
| return supportsHeaderParsing; |
| } |
| |
| /** |
| * Returns the configured features of the toolchain. |
| */ |
| @Nullable |
| public CcToolchainFeatures getFeatures() { |
| return toolchainInfo.getFeatures(); |
| } |
| |
| /** |
| * Returns whether shared libraries must be compiled with position independent code on this |
| * platform. |
| */ |
| public boolean toolchainNeedsPic() { |
| return toolchainInfo.toolchainNeedsPic(); |
| } |
| |
| /** |
| * Returns the run time sysroot, which is where the dynamic linker and system libraries are found |
| * at runtime. This is usually an absolute path. If the toolchain compiler does not support |
| * sysroots, then this method returns <code>null</code>. |
| */ |
| public PathFragment getRuntimeSysroot() { |
| return toolchainInfo.getRuntimeSysroot(); |
| } |
| |
| /** |
| * Return the name of the directory (relative to the bin directory) that holds mangled links to |
| * shared libraries. This name is always set to the '{@code _solib_<cpu_archictecture_name>}. |
| */ |
| public String getSolibDirectory() { |
| return toolchainInfo.getSolibDirectory(); |
| } |
| |
| /** |
| * Returns the compilation mode. |
| */ |
| @Nullable |
| public CompilationMode getCompilationMode() { |
| return cppConfiguration == null ? null : cppConfiguration.getCompilationMode(); |
| } |
| |
| /** |
| * Returns whether the toolchain supports the gold linker. |
| */ |
| public boolean supportsGoldLinker() { |
| return toolchainInfo.supportsGoldLinker(); |
| } |
| |
| /** |
| * Returns whether the toolchain supports dynamic linking. |
| */ |
| public boolean supportsDynamicLinker() { |
| return toolchainInfo.supportsDynamicLinker(); |
| } |
| |
| /** |
| * Returns whether the toolchain supports linking C/C++ runtime libraries |
| * supplied inside the toolchain distribution. |
| */ |
| public boolean supportsEmbeddedRuntimes() { |
| return toolchainInfo.supportsEmbeddedRuntimes(); |
| } |
| |
| /** |
| * Returns whether the toolchain supports EXEC_ORIGIN libraries resolution. |
| */ |
| public boolean supportsExecOrigin() { |
| // We're rolling out support for this in the same release that also supports embedded runtimes. |
| return toolchainInfo.supportsEmbeddedRuntimes(); |
| } |
| |
| /** Returns whether the toolchain supports the --start-lib/--end-lib options. */ |
| public boolean supportsStartEndLib() { |
| return toolchainInfo.supportsStartEndLib(); |
| } |
| |
| /** |
| * Returns whether this toolchain supports interface shared objects. |
| * |
| * <p>Should be true if this toolchain generates ELF objects. |
| */ |
| public boolean supportsInterfaceSharedObjects() { |
| return toolchainInfo.supportsInterfaceSharedObjects(); |
| } |
| |
| @Nullable |
| public CppConfiguration getCppConfiguration() { |
| return cppConfiguration; |
| } |
| |
| /** Returns build variables to be templated into the crosstool. */ |
| public Variables getBuildVariables() { |
| return buildVariables; |
| } |
| |
| /** |
| * Return the set of include files that may be included even if they are not mentioned in the |
| * source file or any of the headers included by it. |
| */ |
| public ImmutableList<Artifact> getBuiltinIncludeFiles() { |
| return builtinIncludeFiles; |
| } |
| |
| /** |
| * Returns the environment variables that need to be added to tests that collect code coverage. |
| */ |
| public NestedSet<Pair<String, String>> getCoverageEnvironment() { |
| return coverageEnvironment; |
| } |
| |
| public ImmutableMap<String, String> getEnvironment() { |
| return environment; |
| } |
| |
| /** |
| * Returns the tool which should be used for linking dynamic libraries, or in case it's not |
| * specified by the crosstool this will be @tools_repository/tools/cpp:link_dynamic_library |
| */ |
| public Artifact getLinkDynamicLibraryTool() { |
| return linkDynamicLibraryTool; |
| } |
| |
| /** |
| * Returns the tool that builds interface libraries from dynamic libraries. |
| */ |
| public Artifact getInterfaceSoBuilder() { |
| return interfaceSoBuilder; |
| } |
| |
| @SkylarkCallable( |
| name = "sysroot", |
| structField = true, |
| doc = |
| "Returns the sysroot to be used. If the toolchain compiler does not support " |
| + "different sysroots, or the sysroot is the same as the default sysroot, then " |
| + "this method returns <code>None</code>." |
| ) |
| public PathFragment getSysroot() { |
| return sysroot; |
| } |
| |
| /** |
| * Returns the path fragment that is either absolute or relative to the execution root that can be |
| * used to execute the given tool. |
| */ |
| public PathFragment getToolPathFragment(CppConfiguration.Tool tool) { |
| return toolchainInfo.getToolPathFragment(tool); |
| } |
| |
| /** |
| * Returns the abi we're using, which is a gcc version. E.g.: "gcc-3.4". Note that in practice we |
| * might be using gcc-3.4 as ABI even when compiling with gcc-4.1.0, because ABIs are backwards |
| * compatible. |
| */ |
| // TODO(bazel-team): The javadoc should clarify how this is used in Blaze. |
| public String getAbi() { |
| return toolchainInfo.getAbi(); |
| } |
| |
| /** |
| * Returns the glibc version used by the abi we're using. This is a glibc version number (e.g., |
| * "2.2.2"). Note that in practice we might be using glibc 2.2.2 as ABI even when compiling with |
| * gcc-4.2.2, gcc-4.3.1, or gcc-4.4.0 (which use glibc 2.3.6), because ABIs are backwards |
| * compatible. |
| */ |
| // TODO(bazel-team): The javadoc should clarify how this is used in Blaze. |
| public String getAbiGlibcVersion() { |
| return toolchainInfo.getAbiGlibcVersion(); |
| } |
| |
| /** |
| * Returns a label that references the library files needed to statically |
| * link the C++ runtime (i.e. libgcc.a, libgcc_eh.a, libstdc++.a) for the |
| * target architecture. |
| */ |
| public Label getStaticRuntimeLibsLabel() { |
| return toolchainInfo.getStaticRuntimeLibsLabel(); |
| } |
| |
| /** |
| * Returns a label that references the library files needed to dynamically |
| * link the C++ runtime (i.e. libgcc_s.so, libstdc++.so) for the target |
| * architecture. |
| */ |
| public Label getDynamicRuntimeLibsLabel() { |
| return toolchainInfo.getDynamicRuntimeLibsLabel(); |
| } |
| |
| /** Returns the compiler version string (e.g. "gcc-4.1.1"). */ |
| @SkylarkCallable(name = "compiler", structField = true, doc = "C++ compiler.", |
| allowReturnNones = true) |
| public String getCompiler() { |
| return toolchainInfo == null ? null : toolchainInfo.getCompiler(); |
| } |
| |
| /** Returns the libc version string (e.g. "glibc-2.2.2"). */ |
| @SkylarkCallable(name = "libc", structField = true, doc = "libc version string.", |
| allowReturnNones = true) |
| public String getTargetLibc() { |
| return toolchainInfo == null ? null : toolchainInfo.getTargetLibc(); |
| } |
| |
| /** Returns the target architecture using blaze-specific constants (e.g. "piii"). */ |
| @SkylarkCallable(name = "cpu", structField = true, doc = "Target CPU of the C++ toolchain.", |
| allowReturnNones = true) |
| public String getTargetCpu() { |
| return toolchainInfo == null ? null : toolchainInfo.getTargetCpu(); |
| } |
| |
| /** |
| * Returns a map of additional make variables for use by {@link BuildConfiguration}. These are to |
| * used to allow some build rules to avoid the limits on stack frame sizes and variable-length |
| * arrays. |
| * |
| * <p>The returned map must contain an entry for {@code STACK_FRAME_UNLIMITED}, though the entry |
| * may be an empty string. |
| */ |
| public ImmutableMap<String, String> getAdditionalMakeVariables() { |
| return toolchainInfo.getAdditionalMakeVariables(); |
| } |
| |
| /** |
| * Returns whether the toolchain supports "Fission" C++ builds, i.e. builds where compilation |
| * partitions object code and debug symbols into separate output files. |
| */ |
| public boolean supportsFission() { |
| return toolchainInfo.supportsFission(); |
| } |
| |
| @SkylarkCallable( |
| name = "unfiltered_compiler_options", |
| doc = |
| "Returns the default list of options which cannot be filtered by BUILD " |
| + "rules. These should be appended to the command line after filtering." |
| ) |
| public ImmutableList<String> getUnfilteredCompilerOptionsWithSysroot(Iterable<String> features) { |
| return toolchainInfo.getUnfilteredCompilerOptions(features, sysroot); |
| } |
| |
| public ImmutableList<String> getUnfilteredCompilerOptions(Iterable<String> features) { |
| return toolchainInfo.getUnfilteredCompilerOptions(features, /* sysroot= */ null); |
| } |
| |
| @SkylarkCallable( |
| name = "link_options_do_not_use", |
| structField = true, |
| doc = |
| "Returns the set of command-line linker options, including any flags " |
| + "inferred from the command-line options." |
| ) |
| public ImmutableList<String> getLinkOptionsWithSysroot() { |
| return cppConfiguration == null |
| ? ImmutableList.of() |
| : cppConfiguration.getLinkOptionsDoNotUse(sysroot); |
| } |
| |
| public ImmutableList<String> getLinkOptions() { |
| return cppConfiguration.getLinkOptionsDoNotUse(/* sysroot= */ null); |
| } |
| |
| /** |
| * Returns test-only link options such that certain test-specific features can be configured |
| * separately (e.g. lazy binding). |
| */ |
| public ImmutableList<String> getTestOnlyLinkOptions() { |
| return toolchainInfo.getTestOnlyLinkOptions(); |
| } |
| |
| /** Returns the system name which is required by the toolchain to run. */ |
| public String getHostSystemName() { |
| return toolchainInfo.getHostSystemName(); |
| } |
| |
| /** |
| * Returns the list of options to be used with 'objcopy' when converting binary files to object |
| * files, or {@code null} if this operation is not supported. |
| */ |
| public ImmutableList<String> getObjCopyOptionsForEmbedding() { |
| return toolchainInfo.getObjCopyOptionsForEmbedding(); |
| } |
| |
| /** |
| * Returns the list of options to be used with 'ld' when converting binary files to object files, |
| * or {@code null} if this operation is not supported. |
| */ |
| public ImmutableList<String> getLdOptionsForEmbedding() { |
| return toolchainInfo.getLdOptionsForEmbedding(); |
| } |
| |
| /** |
| * Returns link options for the specified flag list, combined with universal options for all |
| * shared libraries (regardless of link staticness). |
| */ |
| ImmutableList<String> getSharedLibraryLinkOptions(FlagList flags, Iterable<String> features) { |
| return toolchainInfo.getSharedLibraryLinkOptions(flags, features); |
| } |
| |
| /** Returns compiler flags arising from the {@link CToolchain}. */ |
| ImmutableList<String> getToolchainCompilerFlags() { |
| return toolchainInfo.getCompilerFlags(); |
| } |
| |
| /** Returns additional compiler flags for C++ arising from the {@link CToolchain} */ |
| ImmutableList<String> getToolchainCxxFlags() { |
| return toolchainInfo.getCxxFlags(); |
| } |
| |
| /** |
| * Returns compiler flags arising from the {@link CToolchain} for C compilation by compilation |
| * mode. |
| */ |
| ImmutableListMultimap<CompilationMode, String> getCFlagsByCompilationMode() { |
| return toolchainInfo.getCFlagsByCompilationMode(); |
| } |
| |
| /** |
| * Returns compiler flags arising from the {@link CToolchain} for C++ compilation by compilation |
| * mode. |
| */ |
| ImmutableListMultimap<CompilationMode, String> getCxxFlagsByCompilationMode() { |
| return toolchainInfo.getCxxFlagsByCompilationMode(); |
| } |
| |
| /** Returns compiler flags arising from the {@link CToolchain} for C compilation by lipo mode. */ |
| ImmutableListMultimap<LipoMode, String> getLipoCFlags() { |
| return toolchainInfo.getLipoCFlags(); |
| } |
| |
| /** |
| * Returns compiler flags arising from the {@link CToolchain} for C++ compilation by lipo mode. |
| */ |
| ImmutableListMultimap<LipoMode, String> getLipoCxxFlags() { |
| return toolchainInfo.getLipoCxxFlags(); |
| } |
| |
| /** Returns optional compiler flags arising from the {@link CToolchain}. */ |
| ImmutableList<OptionalFlag> getOptionalCompilerFlags() { |
| return toolchainInfo.getOptionalCompilerFlags(); |
| } |
| |
| /** Returns optional compiler flags for C++ arising from the {@link CToolchain}. */ |
| ImmutableList<OptionalFlag> getOptionalCxxFlags() { |
| return toolchainInfo.getOptionalCxxFlags(); |
| } |
| |
| /** Returns linker flags for fully statically linked outputs. */ |
| FlagList getFullyStaticLinkFlags(CompilationMode compilationMode, LipoMode lipoMode) { |
| return new FlagList( |
| configureLinkerOptions( |
| compilationMode, lipoMode, LinkingMode.FULLY_STATIC), |
| FlagList.convertOptionalOptions(toolchainInfo.getOptionalLinkerFlags()), |
| ImmutableList.<String>of()); |
| } |
| |
| /** Returns linker flags for mostly static linked outputs. */ |
| FlagList getMostlyStaticLinkFlags(CompilationMode compilationMode, LipoMode lipoMode) { |
| return new FlagList( |
| configureLinkerOptions( |
| compilationMode, lipoMode, LinkingMode.MOSTLY_STATIC), |
| FlagList.convertOptionalOptions(toolchainInfo.getOptionalLinkerFlags()), |
| ImmutableList.<String>of()); |
| } |
| |
| /** Returns linker flags for mostly static shared linked outputs. */ |
| FlagList getMostlyStaticSharedLinkFlags(CompilationMode compilationMode, LipoMode lipoMode) { |
| return new FlagList( |
| configureLinkerOptions( |
| compilationMode, |
| lipoMode, |
| LinkingMode.MOSTLY_STATIC_LIBRARIES), |
| FlagList.convertOptionalOptions(toolchainInfo.getOptionalLinkerFlags()), |
| ImmutableList.<String>of()); |
| } |
| |
| /** Returns linker flags for artifacts that are not fully or mostly statically linked. */ |
| FlagList getDynamicLinkFlags(CompilationMode compilationMode, LipoMode lipoMode) { |
| return new FlagList( |
| configureLinkerOptions( |
| compilationMode, lipoMode, LinkingMode.DYNAMIC), |
| FlagList.convertOptionalOptions(toolchainInfo.getOptionalLinkerFlags()), |
| ImmutableList.<String>of()); |
| } |
| |
| ImmutableList<String> configureLinkerOptions( |
| CompilationMode compilationMode, |
| LipoMode lipoMode, |
| LinkingMode linkingMode) { |
| return toolchainInfo.configureLinkerOptions( |
| compilationMode, lipoMode, linkingMode); |
| } |
| |
| /** Returns the GNU System Name */ |
| @SkylarkCallable( |
| name = "target_gnu_system_name", |
| structField = true, |
| doc = "The GNU System Name.", |
| allowReturnNones = true |
| ) |
| public String getTargetGnuSystemName() { |
| return toolchainInfo == null ? null : toolchainInfo.getTargetGnuSystemName(); |
| } |
| |
| /** Returns the architecture component of the GNU System Name */ |
| public String getGnuSystemArch() { |
| return toolchainInfo.getGnuSystemArch(); |
| } |
| |
| public final boolean isLLVMCompiler() { |
| return toolchainInfo.isLLVMCompiler(); |
| } |
| |
| public FdoMode getFdoMode() { |
| return fdoMode; |
| } |
| |
| // Not all of CcToolchainProvider is exposed to Skylark, which makes implementing deep equality |
| // impossible: if Java-only parts are considered, the behavior is surprising in Skylark, if they |
| // are not, the behavior is surprising in Java. Thus, object identity it is. |
| @Override |
| public boolean equals(Object other) { |
| return other == this; |
| } |
| |
| @Override |
| public int hashCode() { |
| return System.identityHashCode(this); |
| } |
| } |
| |