Sandbox genrule tools (3a150d69) · Commits · e / os / android_build_soong

android/module.go

+1 −0

Original line number	Diff line number	Diff line
		@@ -2732,6 +2732,7 @@ func outputFilesForModule(ctx PathContext, module blueprint.Module, tag string)
		// Modules can implement HostToolProvider and return a valid OptionalPath from HostToolPath() to
		// specify that they can be used as a tool by a genrule module.
		type HostToolProvider interface {
		Module
		// HostToolPath returns the path to the host tool for the module if it is one, or an invalid
		// OptionalPath.
		HostToolPath() OptionalPath

android/rule_builder.go

+124 −2

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@ import (

		const sboxSandboxBaseDir = "__SBOX_SANDBOX_DIR__"
		const sboxOutSubDir = "out"
		const sboxToolsSubDir = "tools"
		const sboxOutDir = sboxSandboxBaseDir + "/" + sboxOutSubDir

		// RuleBuilder provides an alternative to ModuleContext.Rule and ModuleContext.Build to add a command line to the build
		@@ -48,6 +49,7 @@ type RuleBuilder struct {
		highmem bool
		remoteable RemoteRuleSupports
		outDir WritablePath
		sboxTools bool
		sboxManifestPath WritablePath
		missingDeps []string
		}
		@@ -140,6 +142,19 @@ func (r RuleBuilder) Sbox(outputDir WritablePath, manifestPath WritablePath) R
		return r
		}

		// SandboxTools enables tool sandboxing for the rule by copying any referenced tools into the
		// sandbox.
		func (r RuleBuilder) SandboxTools() RuleBuilder {
		if !r.sbox {
		panic("SandboxTools() must be called after Sbox()")
		}
		if len(r.commands) > 0 {
		panic("SandboxTools() may not be called after Command()")
		}
		r.sboxTools = true
		return r
		}

		// Install associates an output of the rule with an install location, which can be retrieved later using
		// RuleBuilder.Installs.
		func (r *RuleBuilder) Install(from Path, to string) {
		@@ -468,8 +483,29 @@ func (r *RuleBuilder) Build(name string, desc string) {
		manifest.OutputDepfile = proto.String(depFile.String())
		}

		// If sandboxing tools is enabled, add copy rules to the manifest to copy each tool
		// into the sbox directory.
		if r.sboxTools {
		for _, tool := range tools {
		command.CopyBefore = append(command.CopyBefore, &sbox_proto.Copy{
		From: proto.String(tool.String()),
		To: proto.String(sboxPathForToolRel(r.ctx, tool)),
		})
		}
		for _, c := range r.commands {
		for _, tool := range c.packagedTools {
		command.CopyBefore = append(command.CopyBefore, &sbox_proto.Copy{
		From: proto.String(tool.srcPath.String()),
		To: proto.String(sboxPathForPackagedToolRel(tool)),
		Executable: proto.Bool(tool.executable),
		})
		tools = append(tools, tool.srcPath)
		}
		}
		}

		// Add copy rules to the manifest to copy each output file from the sbox directory.
		// to the output directory.
		// to the output directory after running the commands.
		sboxOutputs := make([]string, len(outputs))
		for i, output := range outputs {
		rel := Rel(r.ctx, r.outDir.String(), output.String())
		@@ -582,6 +618,7 @@ type RuleBuilderCommand struct {
		symlinkOutputs WritablePaths
		depFiles WritablePaths
		tools Paths
		packagedTools []PackagingSpec
		rspFileInputs Paths

		// spans [start,end) of the command that should not be ninja escaped
		@@ -625,6 +662,79 @@ func (c *RuleBuilderCommand) PathForOutput(path WritablePath) string {
		return path.String()
		}

		// SboxPathForTool takes a path to a tool, which may be an output file or a source file, and returns
		// the corresponding path for the tool in the sbox sandbox. It assumes that sandboxing and tool
		// sandboxing are enabled.
		func SboxPathForTool(ctx BuilderContext, path Path) string {
		return filepath.Join(sboxSandboxBaseDir, sboxPathForToolRel(ctx, path))
		}

		func sboxPathForToolRel(ctx BuilderContext, path Path) string {
		// Errors will be handled in RuleBuilder.Build where we have a context to report them
		relOut, isRelOut, _ := maybeRelErr(PathForOutput(ctx, "host", ctx.Config().PrebuiltOS()).String(), path.String())
		if isRelOut {
		// The tool is in the output directory, it will be copied to __SBOX_OUT_DIR__/tools/out
		return filepath.Join(sboxToolsSubDir, "out", relOut)
		}
		// The tool is in the source directory, it will be copied to __SBOX_OUT_DIR__/tools/src
		return filepath.Join(sboxToolsSubDir, "src", path.String())
		}

		// SboxPathForPackagedTool takes a PackageSpec for a tool and returns the corresponding path for the
		// tool after copying it into the sandbox. This can be used on the RuleBuilder command line to
		// reference the tool.
		func SboxPathForPackagedTool(spec PackagingSpec) string {
		return filepath.Join(sboxSandboxBaseDir, sboxPathForPackagedToolRel(spec))
		}

		func sboxPathForPackagedToolRel(spec PackagingSpec) string {
		return filepath.Join(sboxToolsSubDir, "out", spec.relPathInPackage)
		}

		// PathForTool takes a path to a tool, which may be an output file or a source file, and returns
		// the corresponding path for the tool in the sbox sandbox if sbox is enabled, or the original path
		// if it is not. This can be used on the RuleBuilder command line to reference the tool.
		func (c *RuleBuilderCommand) PathForTool(path Path) string {
		if c.rule.sbox && c.rule.sboxTools {
		return filepath.Join(sboxSandboxBaseDir, sboxPathForToolRel(c.rule.ctx, path))
		}
		return path.String()
		}

		// PackagedTool adds the specified tool path to the command line. It can only be used with tool
		// sandboxing enabled by SandboxTools(), and will copy the tool into the sandbox.
		func (c RuleBuilderCommand) PackagedTool(spec PackagingSpec) RuleBuilderCommand {
		if !c.rule.sboxTools {
		panic("PackagedTool() requires SandboxTools()")
		}

		c.packagedTools = append(c.packagedTools, spec)
		c.Text(sboxPathForPackagedToolRel(spec))
		return c
		}

		// ImplicitPackagedTool copies the specified tool into the sandbox without modifying the command
		// line. It can only be used with tool sandboxing enabled by SandboxTools().
		func (c RuleBuilderCommand) ImplicitPackagedTool(spec PackagingSpec) RuleBuilderCommand {
		if !c.rule.sboxTools {
		panic("ImplicitPackagedTool() requires SandboxTools()")
		}

		c.packagedTools = append(c.packagedTools, spec)
		return c
		}

		// ImplicitPackagedTools copies the specified tools into the sandbox without modifying the command
		// line. It can only be used with tool sandboxing enabled by SandboxTools().
		func (c RuleBuilderCommand) ImplicitPackagedTools(specs []PackagingSpec) RuleBuilderCommand {
		if !c.rule.sboxTools {
		panic("ImplicitPackagedTools() requires SandboxTools()")
		}

		c.packagedTools = append(c.packagedTools, specs...)
		return c
		}

		// Text adds the specified raw text to the command line. The text should not contain input or output paths or the
		// rule will not have them listed in its dependencies or outputs.
		func (c RuleBuilderCommand) Text(text string) RuleBuilderCommand {
		@@ -693,7 +803,19 @@ func (c *RuleBuilderCommand) FlagWithList(flag string, list []string, sep string
		// RuleBuilder.Tools.
		func (c RuleBuilderCommand) Tool(path Path) RuleBuilderCommand {
		c.tools = append(c.tools, path)
		return c.Text(path.String())
		return c.Text(c.PathForTool(path))
		}

		// Tool adds the specified tool path to the dependencies returned by RuleBuilder.Tools.
		func (c RuleBuilderCommand) ImplicitTool(path Path) RuleBuilderCommand {
		c.tools = append(c.tools, path)
		return c
		}

		// Tool adds the specified tool path to the dependencies returned by RuleBuilder.Tools.
		func (c RuleBuilderCommand) ImplicitTools(paths Paths) RuleBuilderCommand {
		c.tools = append(c.tools, paths...)
		return c
		}

		// BuiltTool adds the specified tool path that was built using a host Soong module to the command line. The path will

android/rule_builder_test.go

+38 −0

Original line number	Diff line number	Diff line
		@@ -436,6 +436,44 @@ func TestRuleBuilder(t *testing.T) {
		t.Errorf("\nwant rule.depFileMergerCmd() = %#v\n got %#v", w, g)
		}
		})

		t.Run("sbox tools", func(t *testing.T) {
		rule := NewRuleBuilder(pctx, ctx).Sbox(PathForOutput(ctx, ""),
		PathForOutput(ctx, "sbox.textproto")).SandboxTools()
		addCommands(rule)

		wantCommands := []string{
		"__SBOX_SANDBOX_DIR__/out/DepFile Flag FlagWithArg=arg FlagWithDepFile=__SBOX_SANDBOX_DIR__/out/depfile FlagWithInput=input FlagWithOutput=__SBOX_SANDBOX_DIR__/out/output Input __SBOX_SANDBOX_DIR__/out/Output __SBOX_SANDBOX_DIR__/out/SymlinkOutput Text __SBOX_SANDBOX_DIR__/tools/src/Tool after command2 old cmd",
		"command2 __SBOX_SANDBOX_DIR__/out/depfile2 input2 __SBOX_SANDBOX_DIR__/out/output2 __SBOX_SANDBOX_DIR__/tools/src/tool2",
		"command3 input3 __SBOX_SANDBOX_DIR__/out/output2 __SBOX_SANDBOX_DIR__/out/output3",
		}

		wantDepMergerCommand := "__SBOX_SANDBOX_DIR__/tools/out/bin/dep_fixer __SBOX_SANDBOX_DIR__/out/DepFile __SBOX_SANDBOX_DIR__/out/depfile __SBOX_SANDBOX_DIR__/out/ImplicitDepFile __SBOX_SANDBOX_DIR__/out/depfile2"

		if g, w := rule.Commands(), wantCommands; !reflect.DeepEqual(g, w) {
		t.Errorf("\nwant rule.Commands() = %#v\n got %#v", w, g)
		}

		if g, w := rule.Inputs(), wantInputs; !reflect.DeepEqual(w, g) {
		t.Errorf("\nwant rule.Inputs() = %#v\n got %#v", w, g)
		}
		if g, w := rule.Outputs(), wantOutputs; !reflect.DeepEqual(w, g) {
		t.Errorf("\nwant rule.Outputs() = %#v\n got %#v", w, g)
		}
		if g, w := rule.DepFiles(), wantDepFiles; !reflect.DeepEqual(w, g) {
		t.Errorf("\nwant rule.DepFiles() = %#v\n got %#v", w, g)
		}
		if g, w := rule.Tools(), wantTools; !reflect.DeepEqual(w, g) {
		t.Errorf("\nwant rule.Tools() = %#v\n got %#v", w, g)
		}
		if g, w := rule.OrderOnlys(), wantOrderOnlys; !reflect.DeepEqual(w, g) {
		t.Errorf("\nwant rule.OrderOnlys() = %#v\n got %#v", w, g)
		}

		if g, w := rule.depFileMergerCmd(rule.DepFiles()).String(), wantDepMergerCommand; g != w {
		t.Errorf("\nwant rule.depFileMergerCmd() = %#v\n got %#v", w, g)
		}
		})
		}

		func testRuleBuilderFactory() Module {

genrule/genrule.go

+46 −24

Original line number	Diff line number	Diff line
		@@ -139,7 +139,6 @@ type Module struct {
		// number of shards the input files are sharded into.
		taskGenerator taskFunc

		deps android.Paths
		rule blueprint.Rule
		rawCommands []string

		@@ -244,6 +243,8 @@ func (g *Module) GenerateAndroidBuildActions(ctx android.ModuleContext) {
		}
		}

		var tools android.Paths
		var packagedTools []android.PackagingSpec
		if len(g.properties.Tools) > 0 {
		seenTools := make(map[string]bool)

		@@ -251,37 +252,52 @@ func (g *Module) GenerateAndroidBuildActions(ctx android.ModuleContext) {
		switch tag := ctx.OtherModuleDependencyTag(module).(type) {
		case hostToolDependencyTag:
		tool := ctx.OtherModuleName(module)
		var path android.OptionalPath

		if t, ok := module.(android.HostToolProvider); ok {
		switch t := module.(type) {
		case android.HostToolProvider:
		// A HostToolProvider provides the path to a tool, which will be copied
		// into the sandbox.
		if !t.(android.Module).Enabled() {
		if ctx.Config().AllowMissingDependencies() {
		ctx.AddMissingDependencies([]string{tool})
		} else {
		ctx.ModuleErrorf("depends on disabled module %q", tool)
		}
		break
		return
		}
		path := t.HostToolPath()
		if !path.Valid() {
		ctx.ModuleErrorf("host tool %q missing output file", tool)
		return
		}
		path = t.HostToolPath()
		} else if t, ok := module.(bootstrap.GoBinaryTool); ok {
		if specs := t.TransitivePackagingSpecs(); specs != nil {
		// If the HostToolProvider has PackgingSpecs, which are definitions of the
		// required relative locations of the tool and its dependencies, use those
		// instead. They will be copied to those relative locations in the sbox
		// sandbox.
		packagedTools = append(packagedTools, specs...)
		// Assume that the first PackagingSpec of the module is the tool.
		addLocationLabel(tag.label, []string{android.SboxPathForPackagedTool(specs[0])})
		} else {
		tools = append(tools, path.Path())
		addLocationLabel(tag.label, []string{android.SboxPathForTool(ctx, path.Path())})
		}
		case bootstrap.GoBinaryTool:
		// A GoBinaryTool provides the install path to a tool, which will be copied.
		if s, err := filepath.Rel(android.PathForOutput(ctx).String(), t.InstallPath()); err == nil {
		path = android.OptionalPathForPath(android.PathForOutput(ctx, s))
		toolPath := android.PathForOutput(ctx, s)
		tools = append(tools, toolPath)
		addLocationLabel(tag.label, []string{android.SboxPathForTool(ctx, toolPath)})
		} else {
		ctx.ModuleErrorf("cannot find path for %q: %v", tool, err)
		break
		return
		}
		} else {
		default:
		ctx.ModuleErrorf("%q is not a host tool provider", tool)
		break
		return
		}

		if path.Valid() {
		g.deps = append(g.deps, path.Path())
		addLocationLabel(tag.label, []string{path.Path().String()})
		seenTools[tag.label] = true
		} else {
		ctx.ModuleErrorf("host tool %q missing output file", tool)
		}
		}
		})

		@@ -305,8 +321,12 @@ func (g *Module) GenerateAndroidBuildActions(ctx android.ModuleContext) {

		for _, toolFile := range g.properties.Tool_files {
		paths := android.PathsForModuleSrc(ctx, []string{toolFile})
		g.deps = append(g.deps, paths...)
		addLocationLabel(toolFile, paths.Strings())
		tools = append(tools, paths...)
		var sandboxPaths []string
		for _, path := range paths {
		sandboxPaths = append(sandboxPaths, android.SboxPathForTool(ctx, path))
		}
		addLocationLabel(toolFile, sandboxPaths)
		}

		var srcFiles android.Paths
		@@ -358,7 +378,7 @@ func (g *Module) GenerateAndroidBuildActions(ctx android.ModuleContext) {
		manifestPath := android.PathForModuleOut(ctx, manifestName)

		// Use a RuleBuilder to create a rule that runs the command inside an sbox sandbox.
		rule := android.NewRuleBuilder(pctx, ctx).Sbox(task.genDir, manifestPath)
		rule := android.NewRuleBuilder(pctx, ctx).Sbox(task.genDir, manifestPath).SandboxTools()
		cmd := rule.Command()

		for _, out := range task.out {
		@@ -448,8 +468,9 @@ func (g *Module) GenerateAndroidBuildActions(ctx android.ModuleContext) {
		cmd.Text(rawCommand)
		cmd.ImplicitOutputs(task.out)
		cmd.Implicits(task.in)
		cmd.Implicits(g.deps)
		cmd.Implicits(task.extraTools)
		cmd.ImplicitTools(tools)
		cmd.ImplicitTools(task.extraTools)
		cmd.ImplicitPackagedTools(packagedTools)
		if Bool(g.properties.Depfile) {
		cmd.ImplicitDepFile(task.depFile)
		}
		@@ -616,7 +637,7 @@ func NewGenSrcs() *Module {
		// TODO(ccross): this RuleBuilder is a hack to be able to call
		// rule.Command().PathForOutput. Replace this with passing the rule into the
		// generator.
		rule := android.NewRuleBuilder(pctx, ctx).Sbox(genDir, nil)
		rule := android.NewRuleBuilder(pctx, ctx).Sbox(genDir, nil).SandboxTools()

		for _, in := range shard {
		outFile := android.GenPathWithExt(ctx, finalSubDir, in, String(properties.Output_extension))
		@@ -669,7 +690,8 @@ func NewGenSrcs() *Module {
		outputDepfile = android.PathForModuleGen(ctx, genSubDir, "gensrcs.d")
		depFixerTool := ctx.Config().HostToolPath(ctx, "dep_fixer")
		fullCommand += fmt.Sprintf(" && %s -o $(depfile) %s",
		depFixerTool.String(), strings.Join(commandDepFiles, " "))
		android.SboxPathForTool(ctx, depFixerTool),
		strings.Join(commandDepFiles, " "))
		extraTools = append(extraTools, depFixerTool)
		}

genrule/genrule_test.go

+14 −14

Original line number	Diff line number	Diff line
		@@ -141,7 +141,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location) > $(out)",
		`,
		expect: "out/tool > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/out/bin/tool > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "empty location tool2",
		@@ -150,7 +150,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location) > $(out)",
		`,
		expect: "out/tool > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/out/bin/tool > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "empty location tool file",
		@@ -159,7 +159,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location) > $(out)",
		`,
		expect: "tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/src/tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "empty location tool file fg",
		@@ -168,7 +168,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location) > $(out)",
		`,
		expect: "tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/src/tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "empty location tool and tool file",
		@@ -178,7 +178,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location) > $(out)",
		`,
		expect: "out/tool > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/out/bin/tool > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "tool",
		@@ -187,7 +187,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location tool) > $(out)",
		`,
		expect: "out/tool > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/out/bin/tool > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "tool2",
		@@ -196,7 +196,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location :tool) > $(out)",
		`,
		expect: "out/tool > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/out/bin/tool > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "tool file",
		@@ -205,7 +205,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location tool_file1) > $(out)",
		`,
		expect: "tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/src/tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "tool file fg",
		@@ -214,7 +214,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(location :1tool_file) > $(out)",
		`,
		expect: "tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/src/tool_file1 > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "tool files",
		@@ -223,7 +223,7 @@ func TestGenruleCmd(t *testing.T) {
		out: ["out"],
		cmd: "$(locations :tool_files) > $(out)",
		`,
		expect: "tool_file1 tool_file2 > __SBOX_SANDBOX_DIR__/out/out",
		expect: "__SBOX_SANDBOX_DIR__/tools/src/tool_file1 __SBOX_SANDBOX_DIR__/tools/src/tool_file2 > __SBOX_SANDBOX_DIR__/out/out",
		},
		{
		name: "in1",
		@@ -600,7 +600,7 @@ func TestGenSrcs(t *testing.T) {
		cmd: "$(location) $(in) > $(out)",
		`,
		cmds: []string{
		"bash -c 'out/tool in1.txt > __SBOX_SANDBOX_DIR__/out/in1.h' && bash -c 'out/tool in2.txt > __SBOX_SANDBOX_DIR__/out/in2.h'",
		"bash -c '__SBOX_SANDBOX_DIR__/tools/out/bin/tool in1.txt > __SBOX_SANDBOX_DIR__/out/in1.h' && bash -c '__SBOX_SANDBOX_DIR__/tools/out/bin/tool in2.txt > __SBOX_SANDBOX_DIR__/out/in2.h'",
		},
		deps: []string{buildDir + "/.intermediates/gen/gen/gensrcs/in1.h", buildDir + "/.intermediates/gen/gen/gensrcs/in2.h"},
		files: []string{buildDir + "/.intermediates/gen/gen/gensrcs/in1.h", buildDir + "/.intermediates/gen/gen/gensrcs/in2.h"},
		@@ -614,8 +614,8 @@ func TestGenSrcs(t *testing.T) {
		shard_size: 2,
		`,
		cmds: []string{
		"bash -c 'out/tool in1.txt > __SBOX_SANDBOX_DIR__/out/in1.h' && bash -c 'out/tool in2.txt > __SBOX_SANDBOX_DIR__/out/in2.h'",
		"bash -c 'out/tool in3.txt > __SBOX_SANDBOX_DIR__/out/in3.h'",
		"bash -c '__SBOX_SANDBOX_DIR__/tools/out/bin/tool in1.txt > __SBOX_SANDBOX_DIR__/out/in1.h' && bash -c '__SBOX_SANDBOX_DIR__/tools/out/bin/tool in2.txt > __SBOX_SANDBOX_DIR__/out/in2.h'",
		"bash -c '__SBOX_SANDBOX_DIR__/tools/out/bin/tool in3.txt > __SBOX_SANDBOX_DIR__/out/in3.h'",
		},
		deps: []string{buildDir + "/.intermediates/gen/gen/gensrcs/in1.h", buildDir + "/.intermediates/gen/gen/gensrcs/in2.h", buildDir + "/.intermediates/gen/gen/gensrcs/in3.h"},
		files: []string{buildDir + "/.intermediates/gen/gen/gensrcs/in1.h", buildDir + "/.intermediates/gen/gen/gensrcs/in2.h", buildDir + "/.intermediates/gen/gen/gensrcs/in3.h"},
		@@ -757,7 +757,7 @@ func toolFactory() android.Module {
		}

		func (t *testTool) GenerateAndroidBuildActions(ctx android.ModuleContext) {
		t.outputFile = android.PathForTesting("out", ctx.ModuleName())
		t.outputFile = ctx.InstallFile(android.PathForModuleInstall(ctx, "bin"), ctx.ModuleName(), android.PathForOutput(ctx, ctx.ModuleName()))
		}

		func (t *testTool) HostToolPath() android.OptionalPath {