bp2build; Update handling of linker flags (0eae52e0) · Commits · e / os / android_build_soong

bp2build/build_conversion.go

+7 −4

Original line number	Diff line number	Diff line
		@@ -239,10 +239,8 @@ func NewCodegenContext(config android.Config, context android.Context, mode Code
		func propsToAttributes(props map[string]string) string {
		var attributes string
		for _, propName := range android.SortedStringKeys(props) {
		if shouldGenerateAttribute(propName) {
		attributes += fmt.Sprintf(" %s = %s,\n", propName, props[propName])
		}
		}
		return attributes
		}

		@@ -422,7 +420,8 @@ func generateBazelTarget(ctx bpToBuildContext, m bp2buildModule) BazelTarget {
		attrs := m.BazelAttributes()
		props := extractModuleProperties(attrs, true)

		delete(props.Attrs, "bp2build_available")
		// name is handled in a special manner
		delete(props.Attrs, "name")

		// Return the Bazel target with rule class and attributes, ready to be
		// code-generated.
		@@ -457,6 +456,10 @@ func generateSoongModuleTarget(ctx bpToBuildContext, m blueprint.Module) BazelTa
		depLabels[qualifiedTargetLabel(ctx, depModule)] = true
		})
		}

		for p, _ := range ignoredPropNames {
		delete(props.Attrs, p)
		}
		attributes := propsToAttributes(props.Attrs)

		depLabelList := "[\n"

bp2build/cc_library_conversion_test.go

+18 −6

Original line number	Diff line number	Diff line
		@@ -873,7 +873,7 @@ cc_library {
		})
		}

		func TestCcLibraryPackRelocations(t *testing.T) {
		func TestCcLibraryFeatures(t *testing.T) {
		runCcLibraryTestCase(t, bp2buildTestCase{
		description: "cc_library pack_relocations test",
		moduleTypeUnderTest: "cc_library",
		@@ -884,6 +884,7 @@ cc_library {
		name: "a",
		srcs: ["a.cpp"],
		pack_relocations: false,
		allow_undefined_symbols: true,
		include_build_directory: false,
		}

		@@ -893,6 +894,7 @@ cc_library {
		arch: {
		x86_64: {
		pack_relocations: false,
		allow_undefined_symbols: true,
		},
		},
		include_build_directory: false,
		@@ -904,25 +906,35 @@ cc_library {
		target: {
		darwin: {
		pack_relocations: false,
		allow_undefined_symbols: true,
		},
		},
		include_build_directory: false,
		}`,
		expectedBazelTargets: []string{`cc_library(
		name = "a",
		linkopts = ["-Wl,--pack-dyn-relocs=none"],
		features = [
		"disable_pack_relocations",
		"-no_undefined_symbols",
		],
		srcs = ["a.cpp"],
		)`, `cc_library(
		name = "b",
		linkopts = select({
		"//build/bazel/platforms/arch:x86_64": ["-Wl,--pack-dyn-relocs=none"],
		features = select({
		"//build/bazel/platforms/arch:x86_64": [
		"disable_pack_relocations",
		"-no_undefined_symbols",
		],
		"//conditions:default": [],
		}),
		srcs = ["b.cpp"],
		)`, `cc_library(
		name = "c",
		linkopts = select({
		"//build/bazel/platforms/os:darwin": ["-Wl,--pack-dyn-relocs=none"],
		features = select({
		"//build/bazel/platforms/os:darwin": [
		"disable_pack_relocations",
		"-no_undefined_symbols",
		],
		"//conditions:default": [],
		}),
		srcs = ["c.cpp"],

cc/bp2build.go

+19 −10

Original line number	Diff line number	Diff line
		@@ -373,15 +373,7 @@ type linkerAttributes struct {
		stripKeepSymbolsList bazel.StringListAttribute
		stripAll bazel.BoolAttribute
		stripNone bazel.BoolAttribute
		}

		// FIXME(b/187655838): Use the existing linkerFlags() function instead of duplicating logic here
		func getBp2BuildLinkerFlags(linkerProperties *BaseLinkerProperties) []string {
		flags := linkerProperties.Ldflags
		if !BoolDefault(linkerProperties.Pack_relocations, true) {
		flags = append(flags, "-Wl,--pack-dyn-relocs=none")
		}
		return flags
		features bazel.StringListAttribute
		}

		// bp2BuildParseLinkerProps parses the linker properties of a module, including
		@@ -408,6 +400,8 @@ func bp2BuildParseLinkerProps(ctx android.TopDownMutatorContext, module *Module)
		var stripAll bazel.BoolAttribute
		var stripNone bazel.BoolAttribute

		var features bazel.StringListAttribute

		for axis, configToProps := range module.GetArchVariantProperties(ctx, &StripProperties{}) {
		for config, props := range configToProps {
		if stripProperties, ok := props.(*StripProperties); ok {
		@@ -426,6 +420,7 @@ func bp2BuildParseLinkerProps(ctx android.TopDownMutatorContext, module *Module)
		for axis, configToProps := range module.GetArchVariantProperties(ctx, &BaseLinkerProperties{}) {
		for config, props := range configToProps {
		if baseLinkerProps, ok := props.(*BaseLinkerProperties); ok {
		var axisFeatures []string

		// Excludes to parallel Soong:
		// https://cs.android.com/android/platform/superproject/+/master:build/soong/cc/linker.go;l=247-249;drc=088b53577dde6e40085ffd737a1ae96ad82fc4b0
		@@ -457,7 +452,15 @@ func bp2BuildParseLinkerProps(ctx android.TopDownMutatorContext, module *Module)
		headerDeps.SetSelectValue(axis, config, hDeps.export)
		implementationHeaderDeps.SetSelectValue(axis, config, hDeps.implementation)

		linkopts.SetSelectValue(axis, config, getBp2BuildLinkerFlags(baseLinkerProps))
		linkopts.SetSelectValue(axis, config, baseLinkerProps.Ldflags)
		if !BoolDefault(baseLinkerProps.Pack_relocations, packRelocationsDefault) {
		axisFeatures = append(axisFeatures, "disable_pack_relocations")
		}

		if Bool(baseLinkerProps.Allow_undefined_symbols) {
		axisFeatures = append(axisFeatures, "-no_undefined_symbols")
		}

		if baseLinkerProps.Version_script != nil {
		versionScript.SetSelectValue(axis, config, android.BazelLabelForModuleSrcSingle(ctx, *baseLinkerProps.Version_script))
		}
		@@ -471,6 +474,10 @@ func bp2BuildParseLinkerProps(ctx android.TopDownMutatorContext, module *Module)
		disallowedArchVariantCrt = true
		}
		}

		if axisFeatures != nil {
		features.SetSelectValue(axis, config, axisFeatures)
		}
		}
		}
		}
		@@ -559,6 +566,8 @@ func bp2BuildParseLinkerProps(ctx android.TopDownMutatorContext, module *Module)
		stripKeepSymbolsList: stripKeepSymbolsList,
		stripAll: stripAll,
		stripNone: stripNone,

		features: features,
		}
		}

cc/library.go

+12 −0

Original line number	Diff line number	Diff line
		@@ -259,6 +259,8 @@ type bazelCcLibraryAttributes struct {
		Static staticOrSharedAttributes

		Strip stripAttributes

		Features bazel.StringListAttribute
		}

		type stripAttributes struct {
		@@ -340,6 +342,8 @@ func CcLibraryBp2Build(ctx android.TopDownMutatorContext) {
		Shared: sharedAttrs,

		Static: staticAttrs,

		Features: linkerAttrs.features,
		}

		props := bazel.BazelTargetModuleProperties{
		@@ -2407,6 +2411,8 @@ func ccSharedOrStaticBp2BuildMutatorInternal(ctx android.TopDownMutatorContext,
		Cppflags: compilerAttrs.cppFlags,
		Conlyflags: compilerAttrs.conlyFlags,
		Asflags: asFlags,

		Features: linkerAttrs.features,
		}
		} else {
		attrs = &bazelCcLibrarySharedAttributes{
		@@ -2435,6 +2441,8 @@ func ccSharedOrStaticBp2BuildMutatorInternal(ctx android.TopDownMutatorContext,
		All: linkerAttrs.stripAll,
		None: linkerAttrs.stripNone,
		},

		Features: linkerAttrs.features,
		}
		}

		@@ -2464,6 +2472,8 @@ type bazelCcLibraryStaticAttributes struct {
		Cppflags bazel.StringListAttribute
		Conlyflags bazel.StringListAttribute
		Asflags bazel.StringListAttribute

		Features bazel.StringListAttribute
		}

		func CcLibraryStaticBp2Build(ctx android.TopDownMutatorContext) {
		@@ -2492,6 +2502,8 @@ type bazelCcLibrarySharedAttributes struct {
		Cppflags bazel.StringListAttribute
		Conlyflags bazel.StringListAttribute
		Asflags bazel.StringListAttribute

		Features bazel.StringListAttribute
		}

		func CcLibrarySharedBp2Build(ctx android.TopDownMutatorContext) {

cc/linker.go

+5 −1

Original line number	Diff line number	Diff line
		@@ -27,6 +27,10 @@ import (
		// This file contains the basic functionality for linking against static libraries and shared
		// libraries. Final linking into libraries or executables is handled in library.go, binary.go, etc.

		const (
		packRelocationsDefault = true
		)

		type BaseLinkerProperties struct {
		// list of modules whose object files should be linked into this module
		// in their entirety. For static library modules, all of the .o files from the intermediate
		@@ -471,7 +475,7 @@ func (linker *baseLinker) linkerFlags(ctx ModuleContext, flags Flags) Flags {

		if linker.useClangLld(ctx) {
		flags.Global.LdFlags = append(flags.Global.LdFlags, fmt.Sprintf("${config.%sGlobalLldflags}", hod))
		if !BoolDefault(linker.Properties.Pack_relocations, true) {
		if !BoolDefault(linker.Properties.Pack_relocations, packRelocationsDefault) {
		flags.Global.LdFlags = append(flags.Global.LdFlags, "-Wl,--pack-dyn-relocs=none")
		} else if ctx.Device() {
		// SHT_RELR relocations are only supported at API level >= 30.