/**
* Generates an empty manifest for a rule that does not directly specify resources.
*
* <p><strong>Note:</strong> This generated manifest can then be used as the primary manifest when
* merging with dependencies.
*
* @return the generated ApplicationManifest
*/
public static ApplicationManifest generatedManifest(RuleContext ruleContext) {
Artifact generatedManifest =
ruleContext.getUniqueDirectoryArtifact(
ruleContext.getRule().getName() + "_generated",
new PathFragment("AndroidManifest.xml"),
ruleContext.getBinOrGenfilesDirectory());
String manifestPackage;
if (ruleContext.attributes().isAttributeValueExplicitlySpecified("custom_package")) {
manifestPackage = ruleContext.attributes().get("custom_package", Type.STRING);
} else {
manifestPackage =
JavaUtil.getJavaFullClassname(ruleContext.getRule().getPackage().getNameFragment());
}
String contents =
Joiner.on("\n")
.join(
"<?xml version=\"1.0\" encoding=\"utf-8\"?>",
"<manifest xmlns:android=\"http://schemas.android.com/apk/res/android\"",
" package=\"" + manifestPackage + "\">",
" <application>",
" </application>",
"</manifest>");
ruleContext
.getAnalysisEnvironment()
.registerAction(
new FileWriteAction(
ruleContext.getActionOwner(),
generatedManifest,
contents,
false /* makeExecutable */));
return new ApplicationManifest(generatedManifest);
}
/**
* Create a Rule Configured Target from the ruleContext and the ruleImplementation. The
* registeredProviderTypes map indicates which keys in structs returned by skylark rules should be
* interpreted as native TransitiveInfoProvider instances of type (map value).
*/
public static ConfiguredTarget buildRule(
RuleContext ruleContext,
BaseFunction ruleImplementation,
Map<String, Class<? extends TransitiveInfoProvider>> registeredProviderTypes)
throws InterruptedException {
String expectFailure = ruleContext.attributes().get("expect_failure", Type.STRING);
try (Mutability mutability = Mutability.create("configured target")) {
SkylarkRuleContext skylarkRuleContext = new SkylarkRuleContext(ruleContext, Kind.RULE);
Environment env =
Environment.builder(mutability)
.setSkylark()
.setCallerLabel(ruleContext.getLabel())
.setGlobals(
ruleContext
.getRule()
.getRuleClassObject()
.getRuleDefinitionEnvironment()
.getGlobals())
.setEventHandler(ruleContext.getAnalysisEnvironment().getEventHandler())
.build(); // NB: loading phase functions are not available: this is analysis already,
// so we do *not* setLoadingPhase().
Object target =
ruleImplementation.call(
ImmutableList.<Object>of(skylarkRuleContext),
ImmutableMap.<String, Object>of(),
/*ast=*/ null,
env);
if (ruleContext.hasErrors()) {
return null;
} else if (!(target instanceof SkylarkClassObject)
&& target != Runtime.NONE
&& !(target instanceof Iterable)) {
ruleContext.ruleError(
String.format(
"Rule should return a return a struct or a list, but got %s",
SkylarkType.typeOf(target)));
return null;
} else if (!expectFailure.isEmpty()) {
ruleContext.ruleError("Expected failure not found: " + expectFailure);
return null;
}
ConfiguredTarget configuredTarget =
createTarget(ruleContext, target, registeredProviderTypes);
SkylarkProviderValidationUtil.checkOrphanArtifacts(ruleContext);
return configuredTarget;
} catch (EvalException e) {
addRuleToStackTrace(e, ruleContext.getRule(), ruleImplementation);
// If the error was expected, return an empty target.
if (!expectFailure.isEmpty() && getMessageWithoutStackTrace(e).matches(expectFailure)) {
return new com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder(ruleContext)
.add(RunfilesProvider.class, RunfilesProvider.EMPTY)
.build();
}
ruleContext.ruleError("\n" + e.print());
return null;
}
}
/**
* Returns the crosstool-derived link action inputs for a given rule. Adds the given set of
* artifacts as extra inputs.
*/
protected NestedSet<Artifact> fullInputsForLink(
RuleContext ruleContext, NestedSet<Artifact> link) {
return NestedSetBuilder.<Artifact>stableOrder()
.addTransitive(link)
.addTransitive(AnalysisUtils.getMiddlemanFor(ruleContext, ":libc_top"))
.add(
ruleContext
.getAnalysisEnvironment()
.getEmbeddedToolArtifact(CppRuleClasses.BUILD_INTERFACE_SO))
.build();
}
private static Artifact derivedArtifact(
ConfiguredTarget base, RuleContext ruleContext, String suffix) {
BuildConfiguration configuration = ruleContext.getConfiguration();
assert configuration != null;
Root genfilesDirectory = configuration.getGenfilesDirectory();
PathFragment derivedFilePath = getOutputFilePath(base, ruleContext, suffix);
return ruleContext
.getAnalysisEnvironment()
.getDerivedArtifact(derivedFilePath, genfilesDirectory);
}
/**
* Creates a builder from a rule. This also uses the configuration and artifact factory from the
* rule.
*/
public CppCompileActionBuilder(RuleContext ruleContext, Artifact sourceFile, Label sourceLabel) {
this.owner = ruleContext.getActionOwner();
this.actionContext = CppCompileActionContext.class;
this.cppConfiguration = ruleContext.getFragment(CppConfiguration.class);
this.analysisEnvironment = ruleContext.getAnalysisEnvironment();
this.sourceFile = sourceFile;
this.sourceLabel = sourceLabel;
this.configuration = ruleContext.getConfiguration();
this.mandatoryInputsBuilder = NestedSetBuilder.stableOrder();
this.pluginInputsBuilder = NestedSetBuilder.stableOrder();
this.lipoScannableMap = getLipoScannableMap(ruleContext);
this.ruleContext = ruleContext;
features.addAll(ruleContext.getFeatures());
}
/** Create a Rule Configured Target from the ruleContext and the ruleImplementation. */
public static ConfiguredTarget buildRule(
RuleContext ruleContext, BaseFunction ruleImplementation) {
String expectFailure = ruleContext.attributes().get("expect_failure", Type.STRING);
try {
SkylarkRuleContext skylarkRuleContext = new SkylarkRuleContext(ruleContext);
SkylarkEnvironment env =
ruleContext
.getRule()
.getRuleClassObject()
.getRuleDefinitionEnvironment()
.cloneEnv(ruleContext.getAnalysisEnvironment().getEventHandler());
// Collect the symbols to disable statically and pass at the next call, so we don't need to
// clone the RuleDefinitionEnvironment.
env.disableOnlyLoadingPhaseObjects();
Object target =
ruleImplementation.call(
ImmutableList.<Object>of(skylarkRuleContext),
ImmutableMap.<String, Object>of(),
null,
env);
if (ruleContext.hasErrors()) {
return null;
} else if (!(target instanceof SkylarkClassObject) && target != Environment.NONE) {
ruleContext.ruleError("Rule implementation doesn't return a struct");
return null;
} else if (!expectFailure.isEmpty()) {
ruleContext.ruleError("Expected failure not found: " + expectFailure);
return null;
}
ConfiguredTarget configuredTarget = createTarget(ruleContext, target);
checkOrphanArtifacts(ruleContext);
return configuredTarget;
} catch (InterruptedException e) {
ruleContext.ruleError(e.getMessage());
return null;
} catch (EvalException e) {
// If the error was expected, return an empty target.
if (!expectFailure.isEmpty() && e.getMessage().matches(expectFailure)) {
return new com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder(ruleContext)
.add(RunfilesProvider.class, RunfilesProvider.EMPTY)
.build();
}
ruleContext.ruleError("\n" + e.print());
return null;
}
}
private static void checkOrphanArtifacts(RuleContext ruleContext) throws EvalException {
ImmutableSet<Artifact> orphanArtifacts =
ruleContext.getAnalysisEnvironment().getOrphanArtifacts();
if (!orphanArtifacts.isEmpty()) {
throw new EvalException(
null,
"The following files have no generating action:\n"
+ Joiner.on("\n")
.join(
Iterables.transform(
orphanArtifacts,
new Function<Artifact, String>() {
@Override
public String apply(Artifact artifact) {
return artifact.getRootRelativePathString();
}
})));
}
}
@Override
public ConfiguredTarget create(RuleContext ruleContext)
throws RuleErrorException, InterruptedException {
TransitiveInfoCollection lipoContextCollector =
ruleContext.getPrerequisite(":lipo_context_collector", Mode.DONT_CHECK);
if (lipoContextCollector != null
&& lipoContextCollector.getProvider(LipoContextProvider.class) == null) {
ruleContext.ruleError("--lipo_context must point to a cc_binary or a cc_test rule");
return null;
}
CppConfiguration cppConfiguration =
Preconditions.checkNotNull(ruleContext.getFragment(CppConfiguration.class));
Path fdoZip =
ruleContext.getConfiguration().getCompilationMode() == CompilationMode.OPT
? cppConfiguration.getFdoZip()
: null;
SkyKey fdoKey =
FdoSupportValue.key(
cppConfiguration.getLipoMode(), fdoZip, cppConfiguration.getFdoInstrument());
SkyFunction.Environment skyframeEnv = ruleContext.getAnalysisEnvironment().getSkyframeEnv();
FdoSupportValue fdoSupport;
try {
fdoSupport =
(FdoSupportValue)
skyframeEnv.getValueOrThrow(fdoKey, FdoException.class, IOException.class);
} catch (FdoException | IOException e) {
ruleContext.ruleError("cannot initialize FDO: " + e.getMessage());
return null;
}
if (skyframeEnv.valuesMissing()) {
return null;
}
final Label label = ruleContext.getLabel();
final NestedSet<Artifact> crosstool =
ruleContext
.getPrerequisite("all_files", Mode.HOST)
.getProvider(FileProvider.class)
.getFilesToBuild();
final NestedSet<Artifact> crosstoolMiddleman = getFiles(ruleContext, "all_files");
final NestedSet<Artifact> compile = getFiles(ruleContext, "compiler_files");
final NestedSet<Artifact> strip = getFiles(ruleContext, "strip_files");
final NestedSet<Artifact> objcopy = getFiles(ruleContext, "objcopy_files");
final NestedSet<Artifact> link = getFiles(ruleContext, "linker_files");
final NestedSet<Artifact> dwp = getFiles(ruleContext, "dwp_files");
final NestedSet<Artifact> libcLink = inputsForLibc(ruleContext);
String purposePrefix = Actions.escapeLabel(label) + "_";
String runtimeSolibDirBase = "_solib_" + "_" + Actions.escapeLabel(label);
final PathFragment runtimeSolibDir =
ruleContext.getConfiguration().getBinFragment().getRelative(runtimeSolibDirBase);
// Static runtime inputs.
TransitiveInfoCollection staticRuntimeLibDep =
selectDep(ruleContext, "static_runtime_libs", cppConfiguration.getStaticRuntimeLibsLabel());
final NestedSet<Artifact> staticRuntimeLinkInputs;
final Artifact staticRuntimeLinkMiddleman;
if (cppConfiguration.supportsEmbeddedRuntimes()) {
staticRuntimeLinkInputs =
staticRuntimeLibDep.getProvider(FileProvider.class).getFilesToBuild();
} else {
staticRuntimeLinkInputs = NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
if (!staticRuntimeLinkInputs.isEmpty()) {
NestedSet<Artifact> staticRuntimeLinkMiddlemanSet =
CompilationHelper.getAggregatingMiddleman(
ruleContext, purposePrefix + "static_runtime_link", staticRuntimeLibDep);
staticRuntimeLinkMiddleman =
staticRuntimeLinkMiddlemanSet.isEmpty()
? null
: Iterables.getOnlyElement(staticRuntimeLinkMiddlemanSet);
} else {
staticRuntimeLinkMiddleman = null;
}
Preconditions.checkState(
(staticRuntimeLinkMiddleman == null) == staticRuntimeLinkInputs.isEmpty());
// Dynamic runtime inputs.
TransitiveInfoCollection dynamicRuntimeLibDep =
selectDep(
ruleContext, "dynamic_runtime_libs", cppConfiguration.getDynamicRuntimeLibsLabel());
final NestedSet<Artifact> dynamicRuntimeLinkInputs;
final Artifact dynamicRuntimeLinkMiddleman;
if (cppConfiguration.supportsEmbeddedRuntimes()) {
NestedSetBuilder<Artifact> dynamicRuntimeLinkInputsBuilder = NestedSetBuilder.stableOrder();
for (Artifact artifact :
dynamicRuntimeLibDep.getProvider(FileProvider.class).getFilesToBuild()) {
if (CppHelper.SHARED_LIBRARY_FILETYPES.matches(artifact.getFilename())) {
dynamicRuntimeLinkInputsBuilder.add(
SolibSymlinkAction.getCppRuntimeSymlink(
ruleContext, artifact, runtimeSolibDirBase, ruleContext.getConfiguration()));
} else {
dynamicRuntimeLinkInputsBuilder.add(artifact);
}
}
dynamicRuntimeLinkInputs = dynamicRuntimeLinkInputsBuilder.build();
} else {
dynamicRuntimeLinkInputs = NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
if (!dynamicRuntimeLinkInputs.isEmpty()) {
List<Artifact> dynamicRuntimeLinkMiddlemanSet =
CppHelper.getAggregatingMiddlemanForCppRuntimes(
ruleContext,
purposePrefix + "dynamic_runtime_link",
dynamicRuntimeLibDep,
runtimeSolibDirBase,
ruleContext.getConfiguration());
dynamicRuntimeLinkMiddleman =
dynamicRuntimeLinkMiddlemanSet.isEmpty()
? null
: Iterables.getOnlyElement(dynamicRuntimeLinkMiddlemanSet);
} else {
dynamicRuntimeLinkMiddleman = null;
}
Preconditions.checkState(
(dynamicRuntimeLinkMiddleman == null) == dynamicRuntimeLinkInputs.isEmpty());
CppCompilationContext.Builder contextBuilder = new CppCompilationContext.Builder(ruleContext);
CppModuleMap moduleMap = createCrosstoolModuleMap(ruleContext);
if (moduleMap != null) {
contextBuilder.setCppModuleMap(moduleMap);
}
final CppCompilationContext context = contextBuilder.build();
boolean supportsParamFiles = ruleContext.attributes().get("supports_param_files", BOOLEAN);
boolean supportsHeaderParsing =
ruleContext.attributes().get("supports_header_parsing", BOOLEAN);
NestedSetBuilder<Pair<String, String>> coverageEnvironment = NestedSetBuilder.compileOrder();
coverageEnvironment.add(
Pair.of("COVERAGE_GCOV_PATH", cppConfiguration.getGcovExecutable().getPathString()));
if (cppConfiguration.getFdoInstrument() != null) {
coverageEnvironment.add(
Pair.of("FDO_DIR", cppConfiguration.getFdoInstrument().getPathString()));
}
CcToolchainProvider provider =
new CcToolchainProvider(
cppConfiguration,
crosstool,
fullInputsForCrosstool(ruleContext, crosstoolMiddleman),
compile,
strip,
objcopy,
fullInputsForLink(ruleContext, link),
dwp,
libcLink,
staticRuntimeLinkInputs,
staticRuntimeLinkMiddleman,
dynamicRuntimeLinkInputs,
dynamicRuntimeLinkMiddleman,
runtimeSolibDir,
context,
supportsParamFiles,
supportsHeaderParsing,
getBuildVariables(ruleContext),
getBuiltinIncludes(ruleContext),
coverageEnvironment.build());
RuleConfiguredTargetBuilder builder =
new RuleConfiguredTargetBuilder(ruleContext)
.add(CcToolchainProvider.class, provider)
.add(FdoSupportProvider.class, new FdoSupportProvider(fdoSupport.getFdoSupport()))
.setFilesToBuild(new NestedSetBuilder<Artifact>(Order.STABLE_ORDER).build())
.add(RunfilesProvider.class, RunfilesProvider.simple(Runfiles.EMPTY));
// If output_license is specified on the cc_toolchain rule, override the transitive licenses
// with that one. This is necessary because cc_toolchain is used in the target configuration,
// but it is sort-of-kind-of a tool, but various parts of it are linked into the output...
// ...so we trust the judgment of the author of the cc_toolchain rule to figure out what
// licenses should be propagated to C++ targets.
License outputLicense = ruleContext.getRule().getToolOutputLicense(ruleContext.attributes());
if (outputLicense != null && outputLicense != License.NO_LICENSE) {
final NestedSet<TargetLicense> license =
NestedSetBuilder.create(
Order.STABLE_ORDER, new TargetLicense(ruleContext.getLabel(), outputLicense));
LicensesProvider licensesProvider =
new LicensesProvider() {
@Override
public NestedSet<TargetLicense> getTransitiveLicenses() {
return license;
}
};
builder.add(LicensesProvider.class, licensesProvider);
}
return builder.build();
}
/** Builds the {@link CppCompilationContext}. */
public CppCompilationContext build() {
return build(
ruleContext == null ? null : ruleContext.getActionOwner(),
ruleContext == null ? null : ruleContext.getAnalysisEnvironment().getMiddlemanFactory());
}
/**
* Constructs the C++ linker actions. It generally generates two actions, one for a static library
* and one for a dynamic library. If PIC is required for shared libraries, but not for binaries,
* it additionally creates a third action to generate a PIC static library.
*
* <p>For dynamic libraries, this method can additionally create an interface shared library that
* can be used for linking, but doesn't contain any executable code. This increases the number of
* cache hits for link actions. Call {@link #setAllowInterfaceSharedObjects(boolean)} to enable
* this behavior.
*
* @throws RuleErrorException
*/
public CcLinkingOutputs createCcLinkActions(CcCompilationOutputs ccOutputs)
throws RuleErrorException {
// For now only handle static links. Note that the dynamic library link below ignores linkType.
// TODO(bazel-team): Either support non-static links or move this check to setLinkType().
Preconditions.checkState(linkType.isStaticLibraryLink(), "can only handle static links");
CcLinkingOutputs.Builder result = new CcLinkingOutputs.Builder();
if (cppConfiguration.isLipoContextCollector()) {
// Don't try to create LIPO link actions in collector mode,
// because it needs some data that's not available at this point.
return result.build();
}
AnalysisEnvironment env = ruleContext.getAnalysisEnvironment();
boolean usePicForBinaries = CppHelper.usePic(ruleContext, true);
boolean usePicForSharedLibs = CppHelper.usePic(ruleContext, false);
// Create static library (.a). The linkType only reflects whether the library is alwayslink or
// not. The PIC-ness is determined by whether we need to use PIC or not. There are three cases
// for (usePicForSharedLibs usePicForBinaries):
//
// (1) (false false) -> no pic code
// (2) (true false) -> shared libraries as pic, but not binaries
// (3) (true true) -> both shared libraries and binaries as pic
//
// In case (3), we always need PIC, so only create one static library containing the PIC object
// files. The name therefore does not match the content.
//
// Presumably, it is done this way because the .a file is an implicit output of every cc_library
// rule, so we can't use ".pic.a" that in the always-PIC case.
// If the crosstool is configured to select an output artifact, we use that selection.
// Otherwise, we use linux defaults.
Artifact linkedArtifact = getLinkedArtifact(linkType);
CppLinkAction maybePicAction =
newLinkActionBuilder(linkedArtifact)
.addNonLibraryInputs(ccOutputs.getObjectFiles(usePicForBinaries))
.addNonLibraryInputs(ccOutputs.getHeaderTokenFiles())
.addLTOBitcodeFiles(ccOutputs.getLtoBitcodeFiles())
.setLinkType(linkType)
.setLinkStaticness(LinkStaticness.FULLY_STATIC)
.setFeatureConfiguration(featureConfiguration)
.build();
env.registerAction(maybePicAction);
result.addStaticLibrary(maybePicAction.getOutputLibrary());
// Create a second static library (.pic.a). Only in case (2) do we need both PIC and non-PIC
// static libraries. In that case, the first static library contains the non-PIC code, and this
// one contains the PIC code, so the names match the content.
if (!usePicForBinaries && usePicForSharedLibs) {
LinkTargetType picLinkType =
(linkType == LinkTargetType.ALWAYS_LINK_STATIC_LIBRARY)
? LinkTargetType.ALWAYS_LINK_PIC_STATIC_LIBRARY
: LinkTargetType.PIC_STATIC_LIBRARY;
// If the crosstool is configured to select an output artifact, we use that selection.
// Otherwise, we use linux defaults.
Artifact picArtifact = getLinkedArtifact(picLinkType);
CppLinkAction picAction =
newLinkActionBuilder(picArtifact)
.addNonLibraryInputs(ccOutputs.getObjectFiles(true))
.addNonLibraryInputs(ccOutputs.getHeaderTokenFiles())
.addLTOBitcodeFiles(ccOutputs.getLtoBitcodeFiles())
.setLinkType(picLinkType)
.setLinkStaticness(LinkStaticness.FULLY_STATIC)
.setFeatureConfiguration(featureConfiguration)
.build();
env.registerAction(picAction);
result.addPicStaticLibrary(picAction.getOutputLibrary());
}
if (!createDynamicLibrary) {
return result.build();
}
// Create dynamic library.
Artifact soImpl;
if (soImplArtifact == null) {
// If the crosstool is configured to select an output artifact, we use that selection.
// Otherwise, we use linux defaults.
soImpl = getLinkedArtifact(LinkTargetType.DYNAMIC_LIBRARY);
} else {
soImpl = soImplArtifact;
}
List<String> sonameLinkopts = ImmutableList.of();
Artifact soInterface = null;
if (cppConfiguration.useInterfaceSharedObjects() && allowInterfaceSharedObjects) {
soInterface =
CppHelper.getLinuxLinkedArtifact(ruleContext, LinkTargetType.INTERFACE_DYNAMIC_LIBRARY);
sonameLinkopts =
ImmutableList.of(
"-Wl,-soname="
+ SolibSymlinkAction.getDynamicLibrarySoname(
soImpl.getRootRelativePath(), false));
}
// Should we also link in any libraries that this library depends on?
// That is required on some systems...
CppLinkActionBuilder linkActionBuilder =
newLinkActionBuilder(soImpl)
.setInterfaceOutput(soInterface)
.addNonLibraryInputs(ccOutputs.getObjectFiles(usePicForSharedLibs))
.addNonLibraryInputs(ccOutputs.getHeaderTokenFiles())
.addLTOBitcodeFiles(ccOutputs.getLtoBitcodeFiles())
.setLinkType(LinkTargetType.DYNAMIC_LIBRARY)
.setLinkStaticness(LinkStaticness.DYNAMIC)
.addLinkopts(linkopts)
.addLinkopts(sonameLinkopts)
.setRuntimeInputs(
CppHelper.getToolchain(ruleContext).getDynamicRuntimeLinkMiddleman(),
CppHelper.getToolchain(ruleContext).getDynamicRuntimeLinkInputs())
.setFeatureConfiguration(featureConfiguration);
if (!ccOutputs.getLtoBitcodeFiles().isEmpty()
&& featureConfiguration.isEnabled(CppRuleClasses.THIN_LTO)) {
linkActionBuilder.setLTOIndexing(true);
CppLinkAction indexAction = linkActionBuilder.build();
env.registerAction(indexAction);
for (LTOBackendArtifacts ltoArtifacts : indexAction.getAllLTOBackendArtifacts()) {
ltoArtifacts.scheduleLTOBackendAction(ruleContext, usePicForSharedLibs);
}
linkActionBuilder.setLTOIndexing(false);
}
CppLinkAction action = linkActionBuilder.build();
env.registerAction(action);
LibraryToLink dynamicLibrary = action.getOutputLibrary();
LibraryToLink interfaceLibrary = action.getInterfaceOutputLibrary();
if (interfaceLibrary == null) {
interfaceLibrary = dynamicLibrary;
}
// If shared library has neverlink=1, then leave it untouched. Otherwise,
// create a mangled symlink for it and from now on reference it through
// mangled name only.
if (neverLink) {
result.addDynamicLibrary(interfaceLibrary);
result.addExecutionDynamicLibrary(dynamicLibrary);
} else {
LibraryToLink libraryLink =
SolibSymlinkAction.getDynamicLibrarySymlink(
ruleContext,
interfaceLibrary.getArtifact(),
false,
false,
ruleContext.getConfiguration());
result.addDynamicLibrary(libraryLink);
LibraryToLink implLibraryLink =
SolibSymlinkAction.getDynamicLibrarySymlink(
ruleContext,
dynamicLibrary.getArtifact(),
false,
false,
ruleContext.getConfiguration());
result.addExecutionDynamicLibrary(implLibraryLink);
}
return result.build();
}
/**
* Constructs the C++ compiler actions. It generally creates one action for every specified source
* file. It takes into account LIPO, fake-ness, coverage, and PIC, in addition to using the
* settings specified on the current object. This method should only be called once.
*/
public CcCompilationOutputs createCcCompileActions() {
CcCompilationOutputs.Builder result = new CcCompilationOutputs.Builder();
Preconditions.checkNotNull(context);
AnalysisEnvironment env = ruleContext.getAnalysisEnvironment();
if (shouldProvideHeaderModules()) {
Artifact moduleMapArtifact = context.getCppModuleMap().getArtifact();
Label moduleMapLabel = Label.parseAbsoluteUnchecked(context.getCppModuleMap().getName());
CppCompileActionBuilder builder =
initializeCompileAction(moduleMapArtifact, moduleMapLabel, /*forInterface=*/ true);
// A header module compile action is just like a normal compile action, but:
// - the compiled source file is the module map
// - it creates a header module (.pcm file).
createSourceAction(
FileSystemUtils.removeExtension(semantics.getEffectiveSourcePath(moduleMapArtifact))
.getPathString(),
result,
env,
moduleMapArtifact,
builder,
ArtifactCategory.CPP_MODULE,
/*addObject=*/ false,
/*enableCoverage=*/ false,
/*generateDwo=*/ false,
CppFileTypes.mustProduceDotdFile(moduleMapArtifact.getFilename()),
ImmutableMap.<String, String>of());
}
for (CppSource source : sourceFiles) {
Artifact sourceArtifact = source.getSource();
Label sourceLabel = source.getLabel();
String outputName =
FileSystemUtils.removeExtension(semantics.getEffectiveSourcePath(sourceArtifact))
.getPathString();
CppCompileActionBuilder builder =
initializeCompileAction(sourceArtifact, sourceLabel, /*forInterface=*/ false);
if (CppFileTypes.CPP_HEADER.matches(source.getSource().getExecPath())) {
createHeaderAction(
outputName,
result,
env,
builder,
CppFileTypes.mustProduceDotdFile(sourceArtifact.getFilename()));
} else {
createSourceAction(
outputName,
result,
env,
sourceArtifact,
builder,
ArtifactCategory.OBJECT_FILE,
/*addObject=*/ true,
isCodeCoverageEnabled(),
/*generateDwo=*/ cppConfiguration.useFission(),
CppFileTypes.mustProduceDotdFile(sourceArtifact.getFilename()),
source.getBuildVariables());
}
}
compilationOutputs = result.build();
return compilationOutputs;
}
private static ConfiguredTarget addStructFieldsAndBuild(
RuleContext ruleContext,
RuleConfiguredTargetBuilder builder,
Object target,
Artifact executable,
Map<String, Class<? extends TransitiveInfoProvider>> registeredProviderTypes)
throws EvalException {
Location loc = null;
Runfiles statelessRunfiles = null;
Runfiles dataRunfiles = null;
Runfiles defaultRunfiles = null;
if (target instanceof SkylarkClassObject) {
SkylarkClassObject struct = (SkylarkClassObject) target;
loc = struct.getCreationLoc();
for (String key : struct.getKeys()) {
if (key.equals("files")) {
// If we specify files_to_build we don't have the executable in it by default.
builder.setFilesToBuild(
cast("files", struct, SkylarkNestedSet.class, Artifact.class, loc)
.getSet(Artifact.class));
} else if (key.equals("runfiles")) {
statelessRunfiles = cast("runfiles", struct, Runfiles.class, loc);
} else if (key.equals("data_runfiles")) {
dataRunfiles = cast("data_runfiles", struct, Runfiles.class, loc);
} else if (key.equals("default_runfiles")) {
defaultRunfiles = cast("default_runfiles", struct, Runfiles.class, loc);
} else if (key.equals("output_groups")) {
addOutputGroups(struct.getValue(key), loc, builder);
} else if (key.equals("instrumented_files")) {
SkylarkClassObject insStruct =
cast("instrumented_files", struct, SkylarkClassObject.class, loc);
Location insLoc = insStruct.getCreationLoc();
FileTypeSet fileTypeSet = FileTypeSet.ANY_FILE;
if (insStruct.getKeys().contains("extensions")) {
@SuppressWarnings("unchecked")
List<String> exts =
cast("extensions", insStruct, SkylarkList.class, String.class, insLoc);
if (exts.isEmpty()) {
fileTypeSet = FileTypeSet.NO_FILE;
} else {
FileType[] fileTypes = new FileType[exts.size()];
for (int i = 0; i < fileTypes.length; i++) {
fileTypes[i] = FileType.of(exts.get(i));
}
fileTypeSet = FileTypeSet.of(fileTypes);
}
}
List<String> dependencyAttributes = Collections.emptyList();
if (insStruct.getKeys().contains("dependency_attributes")) {
dependencyAttributes =
cast("dependency_attributes", insStruct, SkylarkList.class, String.class, insLoc);
}
List<String> sourceAttributes = Collections.emptyList();
if (insStruct.getKeys().contains("source_attributes")) {
sourceAttributes =
cast("source_attributes", insStruct, SkylarkList.class, String.class, insLoc);
}
InstrumentationSpec instrumentationSpec =
new InstrumentationSpec(fileTypeSet)
.withSourceAttributes(sourceAttributes.toArray(new String[0]))
.withDependencyAttributes(dependencyAttributes.toArray(new String[0]));
InstrumentedFilesProvider instrumentedFilesProvider =
InstrumentedFilesCollector.collect(
ruleContext,
instrumentationSpec,
InstrumentedFilesCollector.NO_METADATA_COLLECTOR,
Collections.<Artifact>emptySet());
builder.addProvider(InstrumentedFilesProvider.class, instrumentedFilesProvider);
} else if (registeredProviderTypes.containsKey(key)) {
Class<? extends TransitiveInfoProvider> providerType = registeredProviderTypes.get(key);
TransitiveInfoProvider provider = cast(key, struct, providerType, loc);
builder.addProvider(providerType, provider);
} else if (key.equals("providers")) {
Iterable iterable = cast(key, struct, Iterable.class, loc);
for (Object o : iterable) {
SkylarkClassObject declaredProvider =
SkylarkType.cast(
o,
SkylarkClassObject.class,
loc,
"The value of 'providers' should be a sequence of declared providers");
builder.addSkylarkDeclaredProvider(declaredProvider, loc);
}
} else if (!key.equals("executable")) {
// We handled executable already.
builder.addSkylarkTransitiveInfo(key, struct.getValue(key), loc);
}
}
} else if (target instanceof Iterable) {
loc = ruleContext.getRule().getRuleClassObject().getConfiguredTargetFunction().getLocation();
for (Object o : (Iterable) target) {
SkylarkClassObject declaredProvider =
SkylarkType.cast(
o,
SkylarkClassObject.class,
loc,
"A return value of rule implementation function should be "
+ "a sequence of declared providers");
Location creationLoc = declaredProvider.getCreationLocOrNull();
builder.addSkylarkDeclaredProvider(
declaredProvider, creationLoc != null ? creationLoc : loc);
}
}
if ((statelessRunfiles != null) && (dataRunfiles != null || defaultRunfiles != null)) {
throw new EvalException(
loc,
"Cannot specify the provider 'runfiles' "
+ "together with 'data_runfiles' or 'default_runfiles'");
}
if (statelessRunfiles == null && dataRunfiles == null && defaultRunfiles == null) {
// No runfiles specified, set default
statelessRunfiles = Runfiles.EMPTY;
}
RunfilesProvider runfilesProvider =
statelessRunfiles != null
? RunfilesProvider.simple(merge(statelessRunfiles, executable, ruleContext))
: RunfilesProvider.withData(
// The executable doesn't get into the default runfiles if we have runfiles states.
// This is to keep skylark genrule consistent with the original genrule.
defaultRunfiles != null ? defaultRunfiles : Runfiles.EMPTY,
dataRunfiles != null ? dataRunfiles : Runfiles.EMPTY);
builder.addProvider(RunfilesProvider.class, runfilesProvider);
Runfiles computedDefaultRunfiles = runfilesProvider.getDefaultRunfiles();
// This works because we only allowed to call a rule *_test iff it's a test type rule.
boolean testRule = TargetUtils.isTestRuleName(ruleContext.getRule().getRuleClass());
if (testRule && computedDefaultRunfiles.isEmpty()) {
throw new EvalException(loc, "Test rules have to define runfiles");
}
if (executable != null || testRule) {
RunfilesSupport runfilesSupport =
computedDefaultRunfiles.isEmpty()
? null
: RunfilesSupport.withExecutable(ruleContext, computedDefaultRunfiles, executable);
builder.setRunfilesSupport(runfilesSupport, executable);
}
if (ruleContext.getRule().getRuleClassObject().isSkylarkTestable()) {
SkylarkClassObject actions =
ActionsProvider.create(ruleContext.getAnalysisEnvironment().getRegisteredActions());
builder.addSkylarkDeclaredProvider(actions, loc);
}
try {
return builder.build();
} catch (IllegalArgumentException e) {
throw new EvalException(loc, e.getMessage());
}
}
