Handle product config vars in bp2build. (6fd7b3fe) · Commits · e / os / android_build_soong

bazel/properties.go

+40 −3

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

		// BazelTargetModuleProperties contain properties and metadata used for
		@@ -200,6 +201,10 @@ const (
		// config variable default key in an Android.bp file, although there's no
		// integration with Soong config variables (yet).
		CONDITIONS_DEFAULT = "conditions_default"

		ConditionsDefaultSelectKey = "//conditions:default"

		productVariableBazelPackage = "//build/bazel/product_variables"
		)

		var (
		@@ -215,7 +220,7 @@ var (
		ARCH_ARM64: "//build/bazel/platforms/arch:arm64",
		ARCH_X86: "//build/bazel/platforms/arch:x86",
		ARCH_X86_64: "//build/bazel/platforms/arch:x86_64",
		CONDITIONS_DEFAULT: "//conditions:default", // The default condition of as arch select map.
		CONDITIONS_DEFAULT: ConditionsDefaultSelectKey, // The default condition of as arch select map.
		}

		// A map of target operating systems to the Bazel label of the
		@@ -227,7 +232,7 @@ var (
		OS_LINUX: "//build/bazel/platforms/os:linux",
		OS_LINUX_BIONIC: "//build/bazel/platforms/os:linux_bionic",
		OS_WINDOWS: "//build/bazel/platforms/os:windows",
		CONDITIONS_DEFAULT: "//conditions:default", // The default condition of an os select map.
		CONDITIONS_DEFAULT: ConditionsDefaultSelectKey, // The default condition of an os select map.
		}
		)

		@@ -435,6 +440,10 @@ type StringListAttribute struct {
		// are generated in a select statement and appended to the non-os specific
		// label list Value.
		OsValues stringListOsValues

		// list of product-variable string list values. Optional. if used, each will generate a select
		// statement appended to the label list Value.
		ProductValues []ProductVariableValues
		}

		// MakeStringListAttribute initializes a StringListAttribute with the non-arch specific value.
		@@ -466,6 +475,18 @@ type stringListOsValues struct {
		ConditionsDefault []string
		}

		// Product Variable values for StringListAttribute
		type ProductVariableValues struct {
		ProductVariable string

		Values []string
		}

		// SelectKey returns the appropriate select key for the receiving ProductVariableValues.
		func (p ProductVariableValues) SelectKey() string {
		return fmt.Sprintf("%s:%s", productVariableBazelPackage, strings.ToLower(p.ProductVariable))
		}

		// HasConfigurableValues returns true if the attribute contains
		// architecture-specific string_list values.
		func (attrs StringListAttribute) HasConfigurableValues() bool {
		@@ -480,7 +501,8 @@ func (attrs StringListAttribute) HasConfigurableValues() bool {
		return true
		}
		}
		return false

		return len(attrs.ProductValues) > 0
		}

		func (attrs StringListAttribute) archValuePtrs() map[string][]string {
		@@ -558,6 +580,21 @@ func (attrs *StringListAttribute) Append(other StringListAttribute) {
		attrs.SetValueForOS(os, this)
		}

		productValues := make(map[string][]string, 0)
		for _, pv := range attrs.ProductValues {
		productValues[pv.ProductVariable] = pv.Values
		}
		for _, pv := range other.ProductValues {
		productValues[pv.ProductVariable] = append(productValues[pv.ProductVariable], pv.Values...)
		}
		attrs.ProductValues = make([]ProductVariableValues, 0, len(productValues))
		for pv, vals := range productValues {
		attrs.ProductValues = append(attrs.ProductValues, ProductVariableValues{
		ProductVariable: pv,
		Values: vals,
		})
		}

		attrs.Value = append(attrs.Value, other.Value...)
		}

bp2build/cc_library_static_conversion_test.go

+45 −0

Original line number	Diff line number	Diff line
		@@ -1156,3 +1156,48 @@ cc_library_static {
		)`},
		})
		}

		func TestCcLibraryStaticProductVariableSelects(t *testing.T) {
		runCcLibraryStaticTestCase(t, bp2buildTestCase{
		description: "cc_library_static product variable selects",
		moduleTypeUnderTest: "cc_library_static",
		moduleTypeUnderTestFactory: cc.LibraryStaticFactory,
		moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryStaticBp2Build,
		depsMutators: []android.RegisterMutatorFunc{cc.RegisterDepsBp2Build},
		filesystem: map[string]string{},
		blueprint: soongCcLibraryStaticPreamble + `
		cc_library_static {
		name: "foo_static",
		srcs: ["common.c"],
		product_variables: {
		malloc_not_svelte: {
		cflags: ["-Wmalloc_not_svelte"],
		},
		malloc_zero_contents: {
		cflags: ["-Wmalloc_zero_contents"],
		},
		binder32bit: {
		cflags: ["-Wbinder32bit"],
		},
		},
		} `,
		expectedBazelTargets: []string{`cc_library_static(
		name = "foo_static",
		copts = [
		"-I.",
		"-I$(BINDIR)/.",
		] + select({
		"//build/bazel/product_variables:malloc_not_svelte": ["-Wmalloc_not_svelte"],
		"//conditions:default": [],
		}) + select({
		"//build/bazel/product_variables:malloc_zero_contents": ["-Wmalloc_zero_contents"],
		"//conditions:default": [],
		}) + select({
		"//build/bazel/product_variables:binder32bit": ["-Wbinder32bit"],
		"//conditions:default": [],
		}),
		linkstatic = True,
		srcs = ["common.c"],
		)`},
		})
		}

bp2build/cc_object_conversion_test.go

+4 −1

Original line number	Diff line number	Diff line
		@@ -208,7 +208,10 @@ func TestCcObjectProductVariable(t *testing.T) {
		`,
		expectedBazelTargets: []string{`cc_object(
		name = "foo",
		asflags = ["-DPLATFORM_SDK_VERSION={Platform_sdk_version}"],
		asflags = select({
		"//build/bazel/product_variables:platform_sdk_version": ["-DPLATFORM_SDK_VERSION={Platform_sdk_version}"],
		"//conditions:default": [],
		}),
		copts = ["-fno-addrsig"],
		)`,
		},

bp2build/configurability.go

+38 −21

Original line number	Diff line number	Diff line
		@@ -11,26 +11,42 @@ import (

		type selects map[string]reflect.Value

		func getStringListValues(list bazel.StringListAttribute) (reflect.Value, selects, selects) {
		func getStringListValues(list bazel.StringListAttribute) (reflect.Value, []selects) {
		value := reflect.ValueOf(list.Value)
		if !list.HasConfigurableValues() {
		return value, nil, nil
		return value, []selects{}
		}

		selectValues := make([]selects, 0)
		archSelects := map[string]reflect.Value{}
		for arch, selectKey := range bazel.PlatformArchMap {
		archSelects[selectKey] = reflect.ValueOf(list.GetValueForArch(arch))
		}
		if len(archSelects) > 0 {
		selectValues = append(selectValues, archSelects)
		}

		osSelects := map[string]reflect.Value{}
		for os, selectKey := range bazel.PlatformOsMap {
		osSelects[selectKey] = reflect.ValueOf(list.GetValueForOS(os))
		}
		if len(osSelects) > 0 {
		selectValues = append(selectValues, osSelects)
		}

		for _, pv := range list.ProductValues {
		s := make(selects)
		if len(pv.Values) > 0 {
		s[pv.SelectKey()] = reflect.ValueOf(pv.Values)
		s[bazel.ConditionsDefaultSelectKey] = reflect.ValueOf([]string{})
		selectValues = append(selectValues, s)
		}
		}

		return value, archSelects, osSelects
		return value, selectValues
		}

		func getLabelValue(label bazel.LabelAttribute) (reflect.Value, selects, selects) {
		func getLabelValue(label bazel.LabelAttribute) (reflect.Value, []selects) {
		var value reflect.Value
		var archSelects selects

		@@ -43,13 +59,13 @@ func getLabelValue(label bazel.LabelAttribute) (reflect.Value, selects, selects)
		value = reflect.ValueOf(label.Value)
		}

		return value, archSelects, nil
		return value, []selects{archSelects}
		}

		func getLabelListValues(list bazel.LabelListAttribute) (reflect.Value, selects, selects) {
		func getLabelListValues(list bazel.LabelListAttribute) (reflect.Value, []selects) {
		value := reflect.ValueOf(list.Value.Includes)
		if !list.HasConfigurableValues() {
		return value, nil, nil
		return value, []selects{}
		}

		archSelects := map[string]reflect.Value{}
		@@ -62,29 +78,30 @@ func getLabelListValues(list bazel.LabelListAttribute) (reflect.Value, selects,
		osSelects[selectKey] = reflect.ValueOf(list.GetValueForOS(os).Includes)
		}

		return value, archSelects, osSelects
		return value, []selects{archSelects, osSelects}
		}

		// prettyPrintAttribute converts an Attribute to its Bazel syntax. May contain
		// select statements.
		func prettyPrintAttribute(v bazel.Attribute, indent int) (string, error) {
		var value reflect.Value
		var archSelects, osSelects selects
		var configurableAttrs []selects
		var defaultSelectValue string
		switch list := v.(type) {
		case bazel.StringListAttribute:
		value, archSelects, osSelects = getStringListValues(list)
		value, configurableAttrs = getStringListValues(list)
		defaultSelectValue = "[]"
		case bazel.LabelListAttribute:
		value, archSelects, osSelects = getLabelListValues(list)
		value, configurableAttrs = getLabelListValues(list)
		defaultSelectValue = "[]"
		case bazel.LabelAttribute:
		value, archSelects, osSelects = getLabelValue(list)
		value, configurableAttrs = getLabelValue(list)
		defaultSelectValue = "None"
		default:
		return "", fmt.Errorf("Not a supported Bazel attribute type: %s", v)
		}

		var err error
		ret := ""
		if value.Kind() != reflect.Invalid {
		s, err := prettyPrint(value, indent)
		@@ -108,13 +125,14 @@ func prettyPrintAttribute(v bazel.Attribute, indent int) (string, error) {
		return s, nil
		}

		ret, err := appendSelects(archSelects, defaultSelectValue, ret)
		for _, configurableAttr := range configurableAttrs {
		ret, err = appendSelects(configurableAttr, defaultSelectValue, ret)
		if err != nil {
		return "", err
		}
		}

		ret, err = appendSelects(osSelects, defaultSelectValue, ret)
		return ret, err
		return ret, nil
		}

		// prettyPrintSelectMap converts a map of select keys to reflected Values as a generic way
		@@ -125,11 +143,10 @@ func prettyPrintSelectMap(selectMap map[string]reflect.Value, defaultValue strin
		}

		// addConditionsDefault := false
		conditionsDefaultKey := bazel.PlatformArchMap[bazel.CONDITIONS_DEFAULT]

		var selects string
		for _, selectKey := range android.SortedStringKeys(selectMap) {
		if selectKey == conditionsDefaultKey {
		if selectKey == bazel.ConditionsDefaultSelectKey {
		// Handle default condition later.
		continue
		}
		@@ -159,14 +176,14 @@ func prettyPrintSelectMap(selectMap map[string]reflect.Value, defaultValue strin
		ret += selects

		// Handle the default condition
		s, err := prettyPrintSelectEntry(selectMap[conditionsDefaultKey], conditionsDefaultKey, indent)
		s, err := prettyPrintSelectEntry(selectMap[bazel.ConditionsDefaultSelectKey], bazel.ConditionsDefaultSelectKey, indent)
		if err != nil {
		return "", err
		}
		if s == "" {
		// Print an explicit empty list (the default value) even if the value is
		// empty, to avoid errors about not finding a configuration that matches.
		ret += fmt.Sprintf("%s\"%s\": %s,\n", makeIndent(indent+1), "//conditions:default", defaultValue)
		ret += fmt.Sprintf("%s\"%s\": %s,\n", makeIndent(indent+1), bazel.ConditionsDefaultSelectKey, defaultValue)
		} else {
		// Print the custom default value.
		ret += s

cc/bp2build.go

+15 −0

Original line number	Diff line number	Diff line
		@@ -318,6 +318,21 @@ func bp2BuildParseCompilerProps(ctx android.TopDownMutatorContext, module *Modul
		}
		}

		productVariableProps := android.ProductVariableProperties(ctx)
		if props, exists := productVariableProps["Cflags"]; exists {
		for _, prop := range props {
		flags, ok := prop.Property.([]string)
		if !ok {
		ctx.ModuleErrorf("Could not convert product variable cflag property")
		}
		newFlags, _ := bazel.TryVariableSubstitutions(flags, prop.ProductConfigVariable)
		copts.ProductValues = append(copts.ProductValues, bazel.ProductVariableValues{
		ProductVariable: prop.ProductConfigVariable,
		Values: newFlags,
		})
		}
		}

		return compilerAttributes{
		srcs: srcs,
		copts: copts,