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- // Copyright 2020 Google Inc. 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 cc
- import (
- "github.com/google/blueprint/proptools"
- "android/soong/android"
- "android/soong/bazel"
- "android/soong/bazel/cquery"
- )
- func init() {
- RegisterLibraryHeadersBuildComponents(android.InitRegistrationContext)
- // Register sdk member types.
- android.RegisterSdkMemberType(headersLibrarySdkMemberType)
- }
- var headersLibrarySdkMemberType = &librarySdkMemberType{
- SdkMemberTypeBase: android.SdkMemberTypeBase{
- PropertyName: "native_header_libs",
- SupportsSdk: true,
- HostOsDependent: true,
- Traits: []android.SdkMemberTrait{
- nativeBridgeSdkTrait,
- ramdiskImageRequiredSdkTrait,
- recoveryImageRequiredSdkTrait,
- },
- },
- prebuiltModuleType: "cc_prebuilt_library_headers",
- noOutputFiles: true,
- }
- func RegisterLibraryHeadersBuildComponents(ctx android.RegistrationContext) {
- ctx.RegisterModuleType("cc_library_headers", LibraryHeaderFactory)
- ctx.RegisterModuleType("cc_prebuilt_library_headers", prebuiltLibraryHeaderFactory)
- }
- type libraryHeaderBazelHandler struct {
- module *Module
- library *libraryDecorator
- }
- var _ BazelHandler = (*libraryHeaderBazelHandler)(nil)
- func (handler *libraryHeaderBazelHandler) QueueBazelCall(ctx android.BaseModuleContext, label string) {
- bazelCtx := ctx.Config().BazelContext
- bazelCtx.QueueBazelRequest(label, cquery.GetCcInfo, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
- }
- func (h *libraryHeaderBazelHandler) ProcessBazelQueryResponse(ctx android.ModuleContext, label string) {
- bazelCtx := ctx.Config().BazelContext
- ccInfo, err := bazelCtx.GetCcInfo(label, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
- if err != nil {
- ctx.ModuleErrorf(err.Error())
- return
- }
- outputPaths := ccInfo.OutputFiles
- if len(outputPaths) != 1 {
- ctx.ModuleErrorf("expected exactly one output file for %q, but got %q", label, outputPaths)
- return
- }
- var outputPath android.Path = android.PathForBazelOut(ctx, outputPaths[0])
- if len(ccInfo.TidyFiles) > 0 {
- h.module.tidyFiles = android.PathsForBazelOut(ctx, ccInfo.TidyFiles)
- outputPath = android.AttachValidationActions(ctx, outputPath, h.module.tidyFiles)
- }
- h.module.outputFile = android.OptionalPathForPath(outputPath)
- // HeaderLibraryInfo is an empty struct to indicate to dependencies that this is a header library
- ctx.SetProvider(HeaderLibraryInfoProvider, HeaderLibraryInfo{})
- h.library.setFlagExporterInfoFromCcInfo(ctx, ccInfo)
- // Dependencies on this library will expect collectedSnapshotHeaders to be set, otherwise
- // validation will fail. For now, set this to an empty list.
- // TODO(cparsons): More closely mirror the collectHeadersForSnapshot implementation.
- h.library.collectedSnapshotHeaders = android.Paths{}
- h.module.setAndroidMkVariablesFromCquery(ccInfo.CcAndroidMkInfo)
- }
- // cc_library_headers contains a set of c/c++ headers which are imported by
- // other soong cc modules using the header_libs property. For best practices,
- // use export_include_dirs property or LOCAL_EXPORT_C_INCLUDE_DIRS for
- // Make.
- func LibraryHeaderFactory() android.Module {
- module, library := NewLibrary(android.HostAndDeviceSupported)
- library.HeaderOnly()
- module.sdkMemberTypes = []android.SdkMemberType{headersLibrarySdkMemberType}
- module.bazelable = true
- module.bazelHandler = &libraryHeaderBazelHandler{module: module, library: library}
- return module.Init()
- }
- // cc_prebuilt_library_headers is a prebuilt version of cc_library_headers
- func prebuiltLibraryHeaderFactory() android.Module {
- module, library := NewPrebuiltLibrary(android.HostAndDeviceSupported, "")
- library.HeaderOnly()
- module.bazelable = true
- module.bazelHandler = &ccLibraryBazelHandler{module: module}
- return module.Init()
- }
- type bazelCcLibraryHeadersAttributes struct {
- Hdrs bazel.LabelListAttribute
- Export_includes bazel.StringListAttribute
- Export_absolute_includes bazel.StringListAttribute
- Export_system_includes bazel.StringListAttribute
- Deps bazel.LabelListAttribute
- Implementation_deps bazel.LabelListAttribute
- System_dynamic_deps bazel.LabelListAttribute
- sdkAttributes
- }
- func libraryHeadersBp2Build(ctx android.TopDownMutatorContext, module *Module) {
- baseAttributes := bp2BuildParseBaseProps(ctx, module)
- exportedIncludes := bp2BuildParseExportedIncludes(ctx, module, &baseAttributes.includes)
- linkerAttrs := baseAttributes.linkerAttributes
- (&linkerAttrs.deps).Append(linkerAttrs.dynamicDeps)
- (&linkerAttrs.deps).Append(linkerAttrs.wholeArchiveDeps)
- attrs := &bazelCcLibraryHeadersAttributes{
- Export_includes: exportedIncludes.Includes,
- Export_absolute_includes: exportedIncludes.AbsoluteIncludes,
- Export_system_includes: exportedIncludes.SystemIncludes,
- Deps: linkerAttrs.deps,
- System_dynamic_deps: linkerAttrs.systemDynamicDeps,
- Hdrs: baseAttributes.hdrs,
- sdkAttributes: bp2BuildParseSdkAttributes(module),
- }
- props := bazel.BazelTargetModuleProperties{
- Rule_class: "cc_library_headers",
- Bzl_load_location: "//build/bazel/rules/cc:cc_library_headers.bzl",
- }
- tags := android.ApexAvailableTagsWithoutTestApexes(ctx, module)
- ctx.CreateBazelTargetModule(props, android.CommonAttributes{
- Name: module.Name(),
- Tags: tags,
- }, attrs)
- }
- // Append .contribution suffix to input labels
- func apiBazelTargets(ll bazel.LabelList) bazel.LabelList {
- labels := make([]bazel.Label, 0)
- for _, l := range ll.Includes {
- labels = append(labels, bazel.Label{
- Label: android.ApiContributionTargetName(l.Label),
- })
- }
- return bazel.MakeLabelList(labels)
- }
- func apiLibraryHeadersBp2Build(ctx android.TopDownMutatorContext, module *Module) {
- // cc_api_library_headers have a 1:1 mapping to arch/no-arch
- // For API export, create a top-level arch-agnostic target and list the arch-specific targets as its deps
- // arch-agnostic includes
- apiIncludes := getModuleLibApiIncludes(ctx, module)
- // arch and os specific includes
- archApiIncludes, androidOsIncludes := archOsSpecificApiIncludes(ctx, module)
- for _, arch := range allArches { // sorted iteration
- archApiInclude := archApiIncludes[arch]
- if !archApiInclude.isEmpty() {
- createApiHeaderTarget(ctx, archApiInclude)
- apiIncludes.addDep(archApiInclude.name)
- }
- }
- // os==android includes
- if !androidOsIncludes.isEmpty() {
- createApiHeaderTarget(ctx, androidOsIncludes)
- apiIncludes.addDep(androidOsIncludes.name)
- }
- if !apiIncludes.isEmpty() {
- // override the name from <mod>.module-libapi.headers --> <mod>.contribution
- apiIncludes.name = android.ApiContributionTargetName(module.Name())
- createApiHeaderTarget(ctx, apiIncludes)
- }
- }
- func createApiHeaderTarget(ctx android.TopDownMutatorContext, includes apiIncludes) {
- props := bazel.BazelTargetModuleProperties{
- Rule_class: "cc_api_library_headers",
- Bzl_load_location: "//build/bazel/rules/apis:cc_api_contribution.bzl",
- }
- ctx.CreateBazelTargetModule(
- props,
- android.CommonAttributes{
- Name: includes.name,
- SkipData: proptools.BoolPtr(true),
- },
- &includes.attrs,
- )
- }
- var (
- allArches = []string{"arm", "arm64", "x86", "x86_64"}
- )
- type archApiIncludes map[string]apiIncludes
- func archOsSpecificApiIncludes(ctx android.TopDownMutatorContext, module *Module) (archApiIncludes, apiIncludes) {
- baseProps := bp2BuildParseBaseProps(ctx, module)
- i := bp2BuildParseExportedIncludes(ctx, module, &baseProps.includes)
- archRet := archApiIncludes{}
- for _, arch := range allArches {
- includes := i.Includes.SelectValue(
- bazel.ArchConfigurationAxis,
- arch)
- systemIncludes := i.SystemIncludes.SelectValue(
- bazel.ArchConfigurationAxis,
- arch)
- deps := baseProps.deps.SelectValue(
- bazel.ArchConfigurationAxis,
- arch)
- attrs := bazelCcLibraryHeadersAttributes{
- Export_includes: bazel.MakeStringListAttribute(includes),
- Export_system_includes: bazel.MakeStringListAttribute(systemIncludes),
- }
- apiDeps := apiBazelTargets(deps)
- if !apiDeps.IsEmpty() {
- attrs.Deps = bazel.MakeLabelListAttribute(apiDeps)
- }
- apiIncludes := apiIncludes{
- name: android.ApiContributionTargetName(module.Name()) + "." + arch,
- attrs: bazelCcApiLibraryHeadersAttributes{
- bazelCcLibraryHeadersAttributes: attrs,
- Arch: proptools.StringPtr(arch),
- },
- }
- archRet[arch] = apiIncludes
- }
- // apiIncludes for os == Android
- androidOsDeps := baseProps.deps.SelectValue(bazel.OsConfigurationAxis, bazel.OsAndroid)
- androidOsAttrs := bazelCcLibraryHeadersAttributes{
- Export_includes: bazel.MakeStringListAttribute(
- i.Includes.SelectValue(bazel.OsConfigurationAxis, bazel.OsAndroid),
- ),
- Export_system_includes: bazel.MakeStringListAttribute(
- i.SystemIncludes.SelectValue(bazel.OsConfigurationAxis, bazel.OsAndroid),
- ),
- }
- androidOsApiDeps := apiBazelTargets(androidOsDeps)
- if !androidOsApiDeps.IsEmpty() {
- androidOsAttrs.Deps = bazel.MakeLabelListAttribute(androidOsApiDeps)
- }
- osRet := apiIncludes{
- name: android.ApiContributionTargetName(module.Name()) + ".androidos",
- attrs: bazelCcApiLibraryHeadersAttributes{
- bazelCcLibraryHeadersAttributes: androidOsAttrs,
- },
- }
- return archRet, osRet
- }
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