Merge "rust: rust_proc_macro host snapshot support." am: 72cbf5888b am: 77218bb2ae am: 06de3f94b9 (a9a8f262) · Commits · e / os / android_build_soong

rust/prebuilt.go

+77 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ func init() {
		android.RegisterModuleType("rust_prebuilt_library", PrebuiltLibraryFactory)
		android.RegisterModuleType("rust_prebuilt_dylib", PrebuiltDylibFactory)
		android.RegisterModuleType("rust_prebuilt_rlib", PrebuiltRlibFactory)
		android.RegisterModuleType("rust_prebuilt_proc_macro", PrebuiltProcMacroFactory)
		}

		type PrebuiltProperties struct {
		@@ -38,8 +39,42 @@ type prebuiltLibraryDecorator struct {
		Properties PrebuiltProperties
		}

		type prebuiltProcMacroDecorator struct {
		android.Prebuilt

		*procMacroDecorator
		Properties PrebuiltProperties
		}

		func PrebuiltProcMacroFactory() android.Module {
		module, _ := NewPrebuiltProcMacro(android.HostSupportedNoCross)
		return module.Init()
		}

		type rustPrebuilt interface {
		prebuiltSrcs() []string
		prebuilt() *android.Prebuilt
		}

		func NewPrebuiltProcMacro(hod android.HostOrDeviceSupported) (Module, prebuiltProcMacroDecorator) {
		module, library := NewProcMacro(hod)
		prebuilt := &prebuiltProcMacroDecorator{
		procMacroDecorator: library,
		}
		module.compiler = prebuilt

		addSrcSupplier(module, prebuilt)

		return module, prebuilt
		}

		var _ compiler = (*prebuiltLibraryDecorator)(nil)
		var _ exportedFlagsProducer = (*prebuiltLibraryDecorator)(nil)
		var _ rustPrebuilt = (*prebuiltLibraryDecorator)(nil)

		var _ compiler = (*prebuiltProcMacroDecorator)(nil)
		var _ exportedFlagsProducer = (*prebuiltProcMacroDecorator)(nil)
		var _ rustPrebuilt = (*prebuiltProcMacroDecorator)(nil)

		func PrebuiltLibraryFactory() android.Module {
		module, _ := NewPrebuiltLibrary(android.HostAndDeviceSupported)
		@@ -56,7 +91,7 @@ func PrebuiltRlibFactory() android.Module {
		return module.Init()
		}

		func addSrcSupplier(module android.PrebuiltInterface, prebuilt *prebuiltLibraryDecorator) {
		func addSrcSupplier(module android.PrebuiltInterface, prebuilt rustPrebuilt) {
		srcsSupplier := func(_ android.BaseModuleContext, _ android.Module) []string {
		return prebuilt.prebuiltSrcs()
		}
		@@ -152,3 +187,44 @@ func (prebuilt *prebuiltLibraryDecorator) prebuiltSrcs() []string {
		func (prebuilt prebuiltLibraryDecorator) prebuilt() android.Prebuilt {
		return &prebuilt.Prebuilt
		}

		func (prebuilt *prebuiltProcMacroDecorator) prebuiltSrcs() []string {
		srcs := prebuilt.Properties.Srcs
		return srcs
		}

		func (prebuilt prebuiltProcMacroDecorator) prebuilt() android.Prebuilt {
		return &prebuilt.Prebuilt
		}

		func (prebuilt *prebuiltProcMacroDecorator) compilerProps() []interface{} {
		return append(prebuilt.procMacroDecorator.compilerProps(),
		&prebuilt.Properties)
		}

		func (prebuilt *prebuiltProcMacroDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) android.Path {
		prebuilt.flagExporter.exportLinkDirs(android.PathsForModuleSrc(ctx, prebuilt.Properties.Link_dirs).Strings()...)
		prebuilt.flagExporter.setProvider(ctx)

		srcPath, paths := srcPathFromModuleSrcs(ctx, prebuilt.prebuiltSrcs())
		if len(paths) > 0 {
		ctx.PropertyErrorf("srcs", "prebuilt libraries can only have one entry in srcs (the prebuilt path)")
		}
		prebuilt.baseCompiler.unstrippedOutputFile = srcPath
		return srcPath
		}

		func (prebuilt *prebuiltProcMacroDecorator) rustdoc(ctx ModuleContext, flags Flags,
		deps PathDeps) android.OptionalPath {

		return android.OptionalPath{}
		}

		func (prebuilt *prebuiltProcMacroDecorator) compilerDeps(ctx DepsContext, deps Deps) Deps {
		deps = prebuilt.baseCompiler.compilerDeps(ctx, deps)
		return deps
		}

		func (prebuilt *prebuiltProcMacroDecorator) nativeCoverage() bool {
		return false
		}

rust/proc_macro.go

+5 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ type procMacroDecorator struct {
		}

		type procMacroInterface interface {
		ProcMacro() bool
		}

		var _ compiler = (*procMacroDecorator)(nil)
		@@ -90,6 +91,10 @@ func (procMacro *procMacroDecorator) autoDep(ctx android.BottomUpMutatorContext)
		return rlibAutoDep
		}

		func (procMacro *procMacroDecorator) ProcMacro() bool {
		return true
		}

		func (procMacro *procMacroDecorator) everInstallable() bool {
		// Proc_macros are never installed
		return false

rust/rust.go

+17 −3

Original line number	Diff line number	Diff line
		@@ -27,6 +27,7 @@ import (
		cc_config "android/soong/cc/config"
		"android/soong/fuzz"
		"android/soong/rust/config"
		"android/soong/snapshot"
		)

		var pctx = android.NewPackageContext("android/soong/rust")
		@@ -806,6 +807,13 @@ func (mod Module) Installable() bool {
		return mod.Properties.Installable
		}

		func (mod *Module) ProcMacro() bool {
		if pm, ok := mod.compiler.(procMacroInterface); ok {
		return pm.ProcMacro()
		}
		return false
		}

		func (mod *Module) toolchain(ctx android.BaseModuleContext) config.Toolchain {
		if mod.cachedToolchain == nil {
		mod.cachedToolchain = config.FindToolchain(ctx.Os(), ctx.Arch())
		@@ -920,12 +928,13 @@ func (mod *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
		}

		apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
		if !proptools.BoolDefault(mod.Installable(), mod.EverInstallable()) {
		if !proptools.BoolDefault(mod.Installable(), mod.EverInstallable()) && !mod.ProcMacro() {
		// If the module has been specifically configure to not be installed then
		// hide from make as otherwise it will break when running inside make as the
		// output path to install will not be specified. Not all uninstallable
		// modules can be hidden from make as some are needed for resolving make
		// side dependencies.
		// side dependencies. In particular, proc-macros need to be captured in the
		// host snapshot.
		mod.HideFromMake()
		} else if !mod.installable(apexInfo) {
		mod.SkipInstall()
		@@ -1046,7 +1055,7 @@ func (mod *Module) begin(ctx BaseModuleContext) {
		}

		func (mod Module) Prebuilt() android.Prebuilt {
		if p, ok := mod.compiler.(*prebuiltLibraryDecorator); ok {
		if p, ok := mod.compiler.(rustPrebuilt); ok {
		return p.prebuilt()
		}
		return nil
		@@ -1501,6 +1510,7 @@ func (mod *Module) disableClippy() {
		}

		var _ android.HostToolProvider = (*Module)(nil)
		var _ snapshot.RelativeInstallPath = (*Module)(nil)

		func (mod *Module) HostToolPath() android.OptionalPath {
		if !mod.Host() {
		@@ -1508,6 +1518,10 @@ func (mod *Module) HostToolPath() android.OptionalPath {
		}
		if binary, ok := mod.compiler.(*binaryDecorator); ok {
		return android.OptionalPathForPath(binary.baseCompiler.path)
		} else if pm, ok := mod.compiler.(*procMacroDecorator); ok {
		// Even though proc-macros aren't strictly "tools", since they target the compiler
		// and act as compiler plugins, we treat them similarly.
		return android.OptionalPathForPath(pm.baseCompiler.path)
		}
		return android.OptionalPath{}
		}

snapshot/host_fake_snapshot.go

+2 −2

Original line number	Diff line number	Diff line
		@@ -114,13 +114,13 @@ func (c *hostFakeSingleton) GenerateBuildActions(ctx android.SingletonContext) {
		if !apexInfo.IsForPlatform() {
		return
		}
		path := hostBinToolPath(module)
		path := hostToolPath(module)
		if path.Valid() && path.String() != "" {
		outFile := filepath.Join(c.snapshotDir, path.String())
		if !seen[outFile] {
		seen[outFile] = true
		outputs = append(outputs, WriteStringToFileRule(ctx, "", outFile))
		jsonData = append(jsonData, *hostBinJsonDesc(module))
		jsonData = append(jsonData, *hostJsonDesc(module))
		}
		}
		})

snapshot/host_snapshot.go

+25 −7

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ import (
		"fmt"
		"path/filepath"
		"sort"
		"strings"

		"github.com/google/blueprint"
		"github.com/google/blueprint/proptools"
		@@ -62,6 +63,11 @@ type hostSnapshot struct {
		installDir android.InstallPath
		}

		type ProcMacro interface {
		ProcMacro() bool
		CrateName() string
		}

		func hostSnapshotFactory() android.Module {
		module := &hostSnapshot{}
		initHostToolsModule(module)
		@@ -94,7 +100,7 @@ func (f *hostSnapshot) CreateMetaData(ctx android.ModuleContext, fileName string

		// Create JSON file based on the direct dependencies
		ctx.VisitDirectDeps(func(dep android.Module) {
		desc := hostBinJsonDesc(dep)
		desc := hostJsonDesc(dep)
		if desc != nil {
		jsonData = append(jsonData, *desc)
		}
		@@ -183,7 +189,7 @@ func (f *hostSnapshot) AndroidMkEntries() []android.AndroidMkEntries {
		}

		// Get host tools path and relative install string helpers
		func hostBinToolPath(m android.Module) android.OptionalPath {
		func hostToolPath(m android.Module) android.OptionalPath {
		if provider, ok := m.(android.HostToolProvider); ok {
		return provider.HostToolPath()
		}
		@@ -198,18 +204,30 @@ func hostRelativePathString(m android.Module) string {
		return outString
		}

		// Create JSON description for given module, only create descriptions for binary modueles which
		// provide a valid HostToolPath
		func hostBinJsonDesc(m android.Module) *SnapshotJsonFlags {
		path := hostBinToolPath(m)
		// Create JSON description for given module, only create descriptions for binary modules
		// and rust_proc_macro modules which provide a valid HostToolPath
		func hostJsonDesc(m android.Module) *SnapshotJsonFlags {
		path := hostToolPath(m)
		relPath := hostRelativePathString(m)
		procMacro := false
		moduleStem := filepath.Base(path.String())
		crateName := ""

		if pm, ok := m.(ProcMacro); ok && pm.ProcMacro() {
		procMacro = pm.ProcMacro()
		moduleStem = strings.TrimSuffix(moduleStem, filepath.Ext(moduleStem))
		crateName = pm.CrateName()
		}

		if path.Valid() && path.String() != "" {
		return &SnapshotJsonFlags{
		ModuleName: m.Name(),
		ModuleStemName: filepath.Base(path.String()),
		ModuleStemName: moduleStem,
		Filename: path.String(),
		Required: append(m.HostRequiredModuleNames(), m.RequiredModuleNames()...),
		RelativeInstallPath: relPath,
		RustProcMacro: procMacro,
		CrateName: crateName,
		}
		}
		return nil