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Merge "Bp2build support for soong config variables + os" am: 069812158f

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Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2576792

Change-Id: I233fbaf7f039319c8720048eaed7bce2dafee404
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Cole Faust
2023-05-10 22:09:41 +00:00
committed by Automerger Merge Worker
parent 38811402f3 069812158f
commit 60fff115b1
6 changed files with 350 additions and 230 deletions
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443
android/variable.go
View File

@@ -541,124 +541,102 @@ type ProductConfigContext interface {
Module() Module
}
// ProductConfigProperty contains the information for a single property (may be a struct) paired
// with the appropriate ProductConfigVariable.
// ProductConfigOrSoongConfigProperty represents either a soong config variable + its value
// or a product config variable. You can get both a ConfigurationAxis and a SelectKey from it
// for use in bazel attributes. ProductVariableProperties() will return a map from properties ->
// this interface -> property structs for use in bp2build converters
type ProductConfigOrSoongConfigProperty interface {
// Name of the product variable or soong config variable
Name() string
// AlwaysEmit returns true for soong config variables but false for product variables. This
// is intended to indicate if we need to always emit empty lists in the select statements.
AlwaysEmit() bool
// ConfigurationAxis returns the bazel.ConfigurationAxis that represents this variable. The
// configuration axis will change depending on the variable and whether it's arch/os variant
// as well.
ConfigurationAxis() bazel.ConfigurationAxis
// SelectKey returns a string that represents the key of a select branch, however, it is not
// actually the real label written out to the build file.
// this.ConfigurationAxis().SelectKey(this.SelectKey()) will give the actual label.
SelectKey() string
}
// ProductConfigProperty represents a product config variable, and if it is arch-variant or not.
type ProductConfigProperty struct {
// The name of the product variable, e.g. "safestack", "malloc_not_svelte",
// "board"
Name string
name string
// Namespace of the variable, if this is a soong_config_module_type variable
// e.g. "acme", "ANDROID", "vendor_name"
Namespace string
// Unique configuration to identify this product config property (i.e. a
// primary key), as just using the product variable name is not sufficient.
//
// For product variables, this is the product variable name + optional
// archvariant information. e.g.
//
// product_variables: {
// foo: {
// cflags: ["-Dfoo"],
// },
// },
//
// FullConfig would be "foo".
//
// target: {
// android: {
// product_variables: {
// foo: {
// cflags: ["-Dfoo-android"],
// },
// },
// },
// },
//
// FullConfig would be "foo-android".
//
// For soong config variables, this is the namespace + product variable name
// + value of the variable, if applicable. The value can also be
// conditions_default.
//
// e.g.
//
// soong_config_variables: {
// feature1: {
// conditions_default: {
// cflags: ["-DDEFAULT1"],
// },
// cflags: ["-DFEATURE1"],
// },
// }
//
// where feature1 is created in the "acme" namespace, so FullConfig would be
// "acme__feature1" and "acme__feature1__conditions_default".
//
// e.g.
//
// soong_config_variables: {
// board: {
// soc_a: {
// cflags: ["-DSOC_A"],
// },
// soc_b: {
// cflags: ["-DSOC_B"],
// },
// soc_c: {},
// conditions_default: {
// cflags: ["-DSOC_DEFAULT"]
// },
// },
// }
//
// where board is created in the "acme" namespace, so FullConfig would be
// "acme__board__soc_a", "acme__board__soc_b", and
// "acme__board__conditions_default"
FullConfig string
// keeps track of whether this product variable is nested under an arch variant
OuterAxis bazel.ConfigurationAxis
arch string
}
func (p *ProductConfigProperty) AlwaysEmit() bool {
return p.Namespace != ""
func (p ProductConfigProperty) Name() string {
return p.name
}
func (p *ProductConfigProperty) ConfigurationAxis() bazel.ConfigurationAxis {
if p.Namespace == "" {
return bazel.ProductVariableConfigurationAxis(p.FullConfig, p.OuterAxis)
func (p ProductConfigProperty) AlwaysEmit() bool {
return false
}
func (p ProductConfigProperty) ConfigurationAxis() bazel.ConfigurationAxis {
return bazel.ProductVariableConfigurationAxis(p.arch != "", p.name+"__"+p.arch)
}
func (p ProductConfigProperty) SelectKey() string {
if p.arch == "" {
return strings.ToLower(p.name)
} else {
// Soong config variables can be uniquely identified by the namespace
// (e.g. acme, android) and the product variable name (e.g. board, size)
return bazel.ProductVariableConfigurationAxis(p.Namespace+"__"+p.Name, bazel.NoConfigAxis)
return strings.ToLower(p.name + "-" + p.arch)
}
}
// SoongConfigProperty represents a soong config variable, its value if it's a string variable,
// and if it's dependent on the OS or not
type SoongConfigProperty struct {
name string
namespace string
// Can be an empty string for bool/value soong config variables
value string
// If there is a target: field inside a soong config property struct, the os that it selects
// on will be represented here.
os string
}
func (p SoongConfigProperty) Name() string {
return p.name
}
func (p SoongConfigProperty) AlwaysEmit() bool {
return true
}
func (p SoongConfigProperty) ConfigurationAxis() bazel.ConfigurationAxis {
return bazel.ProductVariableConfigurationAxis(false, p.namespace+"__"+p.name+"__"+p.os)
}
// SelectKey returns the literal string that represents this variable in a BUILD
// select statement.
func (p *ProductConfigProperty) SelectKey() string {
if p.Namespace == "" {
return strings.ToLower(p.FullConfig)
}
if p.FullConfig == bazel.ConditionsDefaultConfigKey {
func (p SoongConfigProperty) SelectKey() string {
// p.value being conditions_default can happen with or without a desired os. When not using
// an os, we want to emit literally just //conditions:default in the select statement, but
// when using an os, we want to emit namespace__name__conditions_default__os, so that
// the branch is only taken if the variable is not set, and we're on the desired os.
// ConfigurationAxis#SelectKey will map the conditions_default result of this function to
// //conditions:default.
if p.value == bazel.ConditionsDefaultConfigKey && p.os == "" {
return bazel.ConditionsDefaultConfigKey
}
value := p.FullConfig
if value == p.Name {
value = ""
parts := []string{p.namespace, p.name}
if p.value != "" && p.value != bazel.ConditionsDefaultSelectKey {
parts = append(parts, p.value)
}
if p.os != "" {
parts = append(parts, p.os)
}
// e.g. acme__feature1, android__board__soc_a
selectKey := strings.ToLower(strings.Join([]string{p.Namespace, p.Name}, "__"))
if value != "" {
selectKey = strings.ToLower(strings.Join([]string{selectKey, value}, "__"))
}
return selectKey
// e.g. acme__feature1, android__board__soc_a, my_namespace__my_variables__my_value__my_os
return strings.ToLower(strings.Join(parts, "__"))
}
// ProductConfigProperties is a map of maps to group property values according
@@ -674,7 +652,7 @@ func (p *ProductConfigProperty) SelectKey() string {
//
// The value of the map is the interface{} representing the value of the
// property, like ["-DDEFINES"] for cflags.
type ProductConfigProperties map[string]map[ProductConfigProperty]interface{}
type ProductConfigProperties map[string]map[ProductConfigOrSoongConfigProperty]interface{}
// ProductVariableProperties returns a ProductConfigProperties containing only the properties which
// have been set for the given module.
@@ -685,26 +663,10 @@ func ProductVariableProperties(ctx ArchVariantContext, module Module) ProductCon
if moduleBase.variableProperties != nil {
productVariablesProperty := proptools.FieldNameForProperty("product_variables")
productVariableValues(
productVariablesProperty,
moduleBase.variableProperties,
"",
"",
&productConfigProperties,
bazel.ConfigurationAxis{},
)
for axis, configToProps := range moduleBase.GetArchVariantProperties(ctx, moduleBase.variableProperties) {
for /* axis */ _, configToProps := range moduleBase.GetArchVariantProperties(ctx, moduleBase.variableProperties) {
for config, props := range configToProps {
// GetArchVariantProperties is creating an instance of the requested type
// and productVariablesValues expects an interface, so no need to cast
productVariableValues(
productVariablesProperty,
props,
"",
config,
&productConfigProperties,
axis)
variableValues := reflect.ValueOf(props).Elem().FieldByName(productVariablesProperty)
productConfigProperties.AddProductConfigProperties(variableValues, config)
}
}
}
@@ -712,13 +674,8 @@ func ProductVariableProperties(ctx ArchVariantContext, module Module) ProductCon
if m, ok := module.(Bazelable); ok && m.namespacedVariableProps() != nil {
for namespace, namespacedVariableProps := range m.namespacedVariableProps() {
for _, namespacedVariableProp := range namespacedVariableProps {
productVariableValues(
soongconfig.SoongConfigProperty,
namespacedVariableProp,
namespace,
"",
&productConfigProperties,
bazel.NoConfigAxis)
variableValues := reflect.ValueOf(namespacedVariableProp).Elem().FieldByName(soongconfig.SoongConfigProperty)
productConfigProperties.AddSoongConfigProperties(namespace, variableValues)
}
}
}
@@ -727,30 +684,49 @@ func ProductVariableProperties(ctx ArchVariantContext, module Module) ProductCon
}
func (p *ProductConfigProperties) AddProductConfigProperty(
propertyName, namespace, productVariableName, config string, property interface{}, outerAxis bazel.ConfigurationAxis) {
if (*p)[propertyName] == nil {
(*p)[propertyName] = make(map[ProductConfigProperty]interface{})
}
propertyName, productVariableName, arch string, propertyValue interface{}) {
productConfigProp := ProductConfigProperty{
Namespace: namespace, // e.g. acme, android
Name: productVariableName, // e.g. size, feature1, feature2, FEATURE3, board
FullConfig: config, // e.g. size, feature1-x86, size__conditions_default
OuterAxis: outerAxis,
name: productVariableName, // e.g. size, feature1, feature2, FEATURE3, board
arch: arch, // e.g. "", x86, arm64
}
if existing, ok := (*p)[propertyName][productConfigProp]; ok && namespace != "" {
p.AddEitherProperty(propertyName, productConfigProp, propertyValue)
}
func (p *ProductConfigProperties) AddSoongConfigProperty(
propertyName, namespace, variableName, value, os string, propertyValue interface{}) {
soongConfigProp := SoongConfigProperty{
namespace: namespace,
name: variableName, // e.g. size, feature1, feature2, FEATURE3, board
value: value,
os: os, // e.g. android, linux_x86
}
p.AddEitherProperty(propertyName, soongConfigProp, propertyValue)
}
func (p *ProductConfigProperties) AddEitherProperty(
propertyName string, key ProductConfigOrSoongConfigProperty, propertyValue interface{}) {
if (*p)[propertyName] == nil {
(*p)[propertyName] = make(map[ProductConfigOrSoongConfigProperty]interface{})
}
if existing, ok := (*p)[propertyName][key]; ok {
switch dst := existing.(type) {
case []string:
if src, ok := property.([]string); ok {
dst = append(dst, src...)
(*p)[propertyName][productConfigProp] = dst
src, ok := propertyValue.([]string)
if !ok {
panic("Conflicting types")
}
dst = append(dst, src...)
(*p)[propertyName][key] = dst
default:
panic(fmt.Errorf("TODO: handle merging value %s", existing))
panic(fmt.Errorf("TODO: handle merging value %#v", existing))
}
} else {
(*p)[propertyName][productConfigProp] = property
(*p)[propertyName][key] = propertyValue
}
}
@@ -787,10 +763,7 @@ func maybeExtractConfigVarProp(v reflect.Value) (reflect.Value, bool) {
return v, true
}
func (productConfigProperties *ProductConfigProperties) AddProductConfigProperties(namespace, suffix string, variableValues reflect.Value, outerAxis bazel.ConfigurationAxis) {
// variableValues can either be a product_variables or
// soong_config_variables struct.
//
func (productConfigProperties *ProductConfigProperties) AddProductConfigProperties(variableValues reflect.Value, arch string) {
// Example of product_variables:
//
// product_variables: {
@@ -803,35 +776,7 @@ func (productConfigProperties *ProductConfigProperties) AddProductConfigProperti
// ],
// },
// },
//
// Example of soong_config_variables:
//
// soong_config_variables: {
// feature1: {
// conditions_default: {
// ...
// },
// cflags: ...
// },
// feature2: {
// cflags: ...
// conditions_default: {
// ...
// },
// },
// board: {
// soc_a: {
// ...
// },
// soc_a: {
// ...
// },
// soc_c: {},
// conditions_default: {
// ...
// },
// },
// }
for i := 0; i < variableValues.NumField(); i++ {
// e.g. Platform_sdk_version, Unbundled_build, Malloc_not_svelte, etc.
productVariableName := variableValues.Type().Field(i).Name
@@ -843,25 +788,78 @@ func (productConfigProperties *ProductConfigProperties) AddProductConfigProperti
continue
}
// Unlike product variables, config variables require a few more
// indirections to extract the struct from the reflect.Value.
if v, ok := maybeExtractConfigVarProp(variableValue); ok {
variableValue = v
}
for j := 0; j < variableValue.NumField(); j++ {
property := variableValue.Field(j)
// e.g. Asflags, Cflags, Enabled, etc.
propertyName := variableValue.Type().Field(j).Name
// config can also be "conditions_default".
config := proptools.PropertyNameForField(propertyName)
if property.Kind() != reflect.Interface {
productConfigProperties.AddProductConfigProperty(propertyName, productVariableName, arch, property.Interface())
}
}
}
}
func (productConfigProperties *ProductConfigProperties) AddSoongConfigProperties(namespace string, soongConfigVariablesStruct reflect.Value) {
//
// Example of soong_config_variables:
//
// soong_config_variables: {
// feature1: {
// conditions_default: {
// ...
// },
// cflags: ...
// },
// feature2: {
// cflags: ...
// conditions_default: {
// ...
// },
// },
// board: {
// soc_a: {
// ...
// },
// soc_b: {
// ...
// },
// soc_c: {},
// conditions_default: {
// ...
// },
// },
// }
for i := 0; i < soongConfigVariablesStruct.NumField(); i++ {
// e.g. feature1, feature2, board
variableName := soongConfigVariablesStruct.Type().Field(i).Name
variableStruct := soongConfigVariablesStruct.Field(i)
// Check if any properties were set for the module
if variableStruct.IsZero() {
// e.g. feature1: {}
continue
}
// Unlike product variables, config variables require a few more
// indirections to extract the struct from the reflect.Value.
if v, ok := maybeExtractConfigVarProp(variableStruct); ok {
variableStruct = v
}
for j := 0; j < variableStruct.NumField(); j++ {
propertyOrStruct := variableStruct.Field(j)
// propertyOrValueName can either be:
// - A property, like: Asflags, Cflags, Enabled, etc.
// - A soong config string variable's value, like soc_a, soc_b, soc_c in the example above
// - "conditions_default"
propertyOrValueName := variableStruct.Type().Field(j).Name
// If the property wasn't set, no need to pass it along
if property.IsZero() {
if propertyOrStruct.IsZero() {
continue
}
if v, ok := maybeExtractConfigVarProp(property); ok {
if v, ok := maybeExtractConfigVarProp(propertyOrStruct); ok {
// The field is a struct, which is used by:
// 1) soong_config_string_variables
//
@@ -879,6 +877,9 @@ func (productConfigProperties *ProductConfigProperties) AddProductConfigProperti
// cflags: ...,
// static_libs: ...
// }
//
// This means that propertyOrValueName is either conditions_default, or a soong
// config string variable's value.
field := v
// Iterate over fields of this struct prop.
for k := 0; k < field.NumField(); k++ {
@@ -888,47 +889,59 @@ func (productConfigProperties *ProductConfigProperties) AddProductConfigProperti
if field.Field(k).IsZero() && namespace == "" {
continue
}
actualPropertyName := field.Type().Field(k).Name
productConfigProperties.AddProductConfigProperty(
actualPropertyName, // e.g. cflags, static_libs
namespace, // e.g. acme, android
productVariableName, // e.g. size, feature1, FEATURE2, board
config,
field.Field(k).Interface(), // e.g. ["-DDEFAULT"], ["foo", "bar"],
outerAxis,
)
propertyName := field.Type().Field(k).Name
if propertyName == "Target" {
productConfigProperties.AddSoongConfigPropertiesFromTargetStruct(namespace, variableName, proptools.PropertyNameForField(propertyOrValueName), field.Field(k))
} else if propertyName == "Arch" || propertyName == "Multilib" {
panic("Arch/Multilib are not currently supported in soong config variable structs")
} else {
productConfigProperties.AddSoongConfigProperty(propertyName, namespace, variableName, proptools.PropertyNameForField(propertyOrValueName), "", field.Field(k).Interface())
}
}
} else if property.Kind() != reflect.Interface {
} else if propertyOrStruct.Kind() != reflect.Interface {
// If not an interface, then this is not a conditions_default or
// a struct prop. That is, this is a regular product variable,
// or a bool/value config variable.
config := productVariableName + suffix
productConfigProperties.AddProductConfigProperty(
propertyName,
namespace,
productVariableName,
config,
property.Interface(),
outerAxis,
)
// a struct prop. That is, this is a bool/value config variable.
if propertyOrValueName == "Target" {
productConfigProperties.AddSoongConfigPropertiesFromTargetStruct(namespace, variableName, "", propertyOrStruct)
} else if propertyOrValueName == "Arch" || propertyOrValueName == "Multilib" {
panic("Arch/Multilib are not currently supported in soong config variable structs")
} else {
productConfigProperties.AddSoongConfigProperty(propertyOrValueName, namespace, variableName, "", "", propertyOrStruct.Interface())
}
}
}
}
}
// productVariableValues uses reflection to convert a property struct for
// product_variables and soong_config_variables to structs that can be generated
// as select statements.
func productVariableValues(
fieldName string, variableProps interface{}, namespace, suffix string, productConfigProperties *ProductConfigProperties, outerAxis bazel.ConfigurationAxis) {
if suffix != "" {
suffix = "-" + suffix
}
func (productConfigProperties *ProductConfigProperties) AddSoongConfigPropertiesFromTargetStruct(namespace, soongConfigVariableName string, soongConfigVariableValue string, targetStruct reflect.Value) {
// targetStruct will be a struct with fields like "android", "host", "arm", "x86",
// "android_arm", etc. The values of each of those fields will be a regular property struct.
for i := 0; i < targetStruct.NumField(); i++ {
targetFieldName := targetStruct.Type().Field(i).Name
archOrOsSpecificStruct := targetStruct.Field(i)
for j := 0; j < archOrOsSpecificStruct.NumField(); j++ {
property := archOrOsSpecificStruct.Field(j)
// e.g. Asflags, Cflags, Enabled, etc.
propertyName := archOrOsSpecificStruct.Type().Field(j).Name
// variableValues represent the product_variables or soong_config_variables struct.
variableValues := reflect.ValueOf(variableProps).Elem().FieldByName(fieldName)
productConfigProperties.AddProductConfigProperties(namespace, suffix, variableValues, outerAxis)
if targetFieldName == "Android" {
productConfigProperties.AddSoongConfigProperty(propertyName, namespace, soongConfigVariableName, soongConfigVariableValue, "android", property.Interface())
} else if targetFieldName == "Host" {
for _, os := range osTypeList {
if os.Class == Host {
productConfigProperties.AddSoongConfigProperty(propertyName, namespace, soongConfigVariableName, soongConfigVariableValue, os.Name, property.Interface())
}
}
} else {
// One problem with supporting additional fields is that if multiple branches of
// "target" overlap, we don't want them to be in the same select statement (aka
// configuration axis). "android" and "host" are disjoint, so it's ok that we only
// have 2 axes right now. (soongConfigVariables and soongConfigVariablesPlusOs)
panic("TODO: support other target types in soong config variable structs: " + targetFieldName)
}
}
}
}
func VariableMutator(mctx BottomUpMutatorContext) {

11
bazel/configurability.go
View File

@@ -292,8 +292,7 @@ func (ca ConfigurationAxis) SelectKey(config string) string {
case osArch:
return platformOsArchMap[config]
case productVariables:
if strings.HasSuffix(config, ConditionsDefaultConfigKey) {
// e.g. "acme__feature1__conditions_default" or "android__board__conditions_default"
if config == ConditionsDefaultConfigKey {
return ConditionsDefaultSelectKey
}
return fmt.Sprintf("%s:%s", productVariableBazelPackage, config)
@@ -325,11 +324,11 @@ var (
)
// ProductVariableConfigurationAxis returns an axis for the given product variable
func ProductVariableConfigurationAxis(variable string, outerAxis ConfigurationAxis) ConfigurationAxis {
func ProductVariableConfigurationAxis(archVariant bool, variable string) ConfigurationAxis {
return ConfigurationAxis{
configurationType: productVariables,
subType: variable,
outerAxisType: outerAxis.configurationType,
archVariant: archVariant,
}
}
@@ -340,8 +339,8 @@ type ConfigurationAxis struct {
// some configuration types (e.g. productVariables) have multiple independent axes, subType helps
// distinguish between them without needing to list all 17 product variables.
subType string
// used to keep track of which product variables are arch variant
outerAxisType configurationType
archVariant bool
}
func (ca *ConfigurationAxis) less(other ConfigurationAxis) bool {

2
bazel/properties.go
View File

@@ -334,7 +334,7 @@ func (la *LabelAttribute) Collapse() error {
if containsArch {
allProductVariablesAreArchVariant := true
for k := range la.ConfigurableValues {
if k.configurationType == productVariables && k.outerAxisType != arch {
if k.configurationType == productVariables && !k.archVariant {
allProductVariablesAreArchVariant = false
}
}

12
bazel/properties_test.go
View File

@@ -248,13 +248,13 @@ func TestResolveExcludes(t *testing.T) {
OsArchConfigurationAxis: labelListSelectValues{
"linux_x86": makeLabelList([]string{"linux_x86_include"}, []string{}),
},
ProductVariableConfigurationAxis("product_with_defaults", NoConfigAxis): labelListSelectValues{
ProductVariableConfigurationAxis(false, "product_with_defaults"): labelListSelectValues{
"a": makeLabelList([]string{}, []string{"not_in_value"}),
"b": makeLabelList([]string{"b_val"}, []string{}),
"c": makeLabelList([]string{"c_val"}, []string{}),
ConditionsDefaultConfigKey: makeLabelList([]string{"c_val", "default", "default2", "all_exclude"}, []string{}),
},
ProductVariableConfigurationAxis("product_only_with_excludes", NoConfigAxis): labelListSelectValues{
ProductVariableConfigurationAxis(false, "product_only_with_excludes"): labelListSelectValues{
"a": makeLabelList([]string{}, []string{"product_config_exclude"}),
},
},
@@ -282,13 +282,13 @@ func TestResolveExcludes(t *testing.T) {
"linux_x86": makeLabels("linux_x86_include"),
ConditionsDefaultConfigKey: nilLabels,
},
ProductVariableConfigurationAxis("product_with_defaults", NoConfigAxis): {
ProductVariableConfigurationAxis(false, "product_with_defaults"): {
"a": nilLabels,
"b": makeLabels("b_val"),
"c": makeLabels("c_val"),
ConditionsDefaultConfigKey: makeLabels("c_val", "default", "default2"),
},
ProductVariableConfigurationAxis("product_only_with_excludes", NoConfigAxis): {
ProductVariableConfigurationAxis(false, "product_only_with_excludes"): {
"a": nilLabels,
ConditionsDefaultConfigKey: makeLabels("product_config_exclude"),
},
@@ -679,7 +679,7 @@ func TestDeduplicateAxesFromBase(t *testing.T) {
OsArchConfigurationAxis: stringListSelectValues{
"linux_x86": {"linux_x86_include"},
},
ProductVariableConfigurationAxis("a", NoConfigAxis): stringListSelectValues{
ProductVariableConfigurationAxis(false, "a"): stringListSelectValues{
"a": []string{"not_in_value"},
},
},
@@ -704,7 +704,7 @@ func TestDeduplicateAxesFromBase(t *testing.T) {
"linux": []string{"linux_include"},
},
OsArchConfigurationAxis: stringListSelectValues{},
ProductVariableConfigurationAxis("a", NoConfigAxis): stringListSelectValues{
ProductVariableConfigurationAxis(false, "a"): stringListSelectValues{
"a": []string{"not_in_value"},
},
}

108
bp2build/soong_config_module_type_conversion_test.go
View File

@@ -1251,3 +1251,111 @@ cc_binary {
srcs = ["main.cc"],
)`}})
}
func TestSoongConfigModuleType_CombinedWithArchVariantProperties(t *testing.T) {
bp := `
soong_config_bool_variable {
name: "my_bool_variable",
}
soong_config_string_variable {
name: "my_string_variable",
values: [
"value1",
"value2",
],
}
soong_config_module_type {
name: "special_build_cc_defaults",
module_type: "cc_defaults",
config_namespace: "my_namespace",
bool_variables: ["my_bool_variable"],
variables: ["my_string_variable"],
properties: ["target.android.cflags", "cflags"],
}
special_build_cc_defaults {
name: "sample_cc_defaults",
target: {
android: {
cflags: ["-DFOO"],
},
},
soong_config_variables: {
my_bool_variable: {
target: {
android: {
cflags: ["-DBAR"],
},
},
conditions_default: {
target: {
android: {
cflags: ["-DBAZ"],
},
},
},
},
my_string_variable: {
value1: {
cflags: ["-DVALUE1_NOT_ANDROID"],
target: {
android: {
cflags: ["-DVALUE1"],
},
},
},
value2: {
target: {
android: {
cflags: ["-DVALUE2"],
},
},
},
conditions_default: {
target: {
android: {
cflags: ["-DSTRING_VAR_CONDITIONS_DEFAULT"],
},
},
},
},
},
}
cc_binary {
name: "my_binary",
srcs: ["main.cc"],
defaults: ["sample_cc_defaults"],
}`
runSoongConfigModuleTypeTest(t, Bp2buildTestCase{
Description: "soong config variables - generates selects for library_linking_strategy",
ModuleTypeUnderTest: "cc_binary",
ModuleTypeUnderTestFactory: cc.BinaryFactory,
Blueprint: bp,
Filesystem: map[string]string{},
ExpectedBazelTargets: []string{`cc_binary(
name = "my_binary",
copts = select({
"//build/bazel/platforms/os:android": ["-DFOO"],
"//conditions:default": [],
}) + select({
"//build/bazel/product_variables:my_namespace__my_bool_variable__android": ["-DBAR"],
"//build/bazel/product_variables:my_namespace__my_bool_variable__conditions_default__android": ["-DBAZ"],
"//conditions:default": [],
}) + select({
"//build/bazel/product_variables:my_namespace__my_string_variable__value1": ["-DVALUE1_NOT_ANDROID"],
"//conditions:default": [],
}) + select({
"//build/bazel/product_variables:my_namespace__my_string_variable__conditions_default__android": ["-DSTRING_VAR_CONDITIONS_DEFAULT"],
"//build/bazel/product_variables:my_namespace__my_string_variable__value1__android": ["-DVALUE1"],
"//build/bazel/product_variables:my_namespace__my_string_variable__value2__android": ["-DVALUE2"],
"//conditions:default": [],
}),
local_includes = ["."],
srcs = ["main.cc"],
target_compatible_with = ["//build/bazel/platforms/os:android"],
)`}})
}

4
cc/bp2build.go
View File

@@ -537,7 +537,7 @@ func (ca *compilerAttributes) convertProductVariables(ctx android.BazelConversio
if !ok {
ctx.ModuleErrorf("Could not convert product variable %s property", proptools.PropertyNameForField(propName))
}
newFlags, _ := bazel.TryVariableSubstitutions(flags, productConfigProp.Name)
newFlags, _ := bazel.TryVariableSubstitutions(flags, productConfigProp.Name())
attr.SetSelectValue(productConfigProp.ConfigurationAxis(), productConfigProp.SelectKey(), newFlags)
}
}
@@ -1350,7 +1350,7 @@ func (la *linkerAttributes) convertProductVariables(ctx android.BazelConversionP
// Collect all the configurations that an include or exclude property exists for.
// We want to iterate all configurations rather than either the include or exclude because, for a
// particular configuration, we may have either only an include or an exclude to handle.
productConfigProps := make(map[android.ProductConfigProperty]bool, len(props)+len(excludeProps))
productConfigProps := make(map[android.ProductConfigOrSoongConfigProperty]bool, len(props)+len(excludeProps))
for p := range props {
productConfigProps[p] = true
}