Add support for cc_library_headers in sdk/module_exports

Bug: 148933848
Bug: 153306490
Test: m nothing
Merged-In: Ife6ee0f736238727a11b4421532eaeb29d46c1b7
Change-Id: Ife6ee0f736238727a11b4421532eaeb29d46c1b7

cc/library_headers.go

@@ -18,6 +18,18 @@ import "android/soong/android"
 
 func init() {
 	RegisterLibraryHeadersBuildComponents(android.InitRegistrationContext)
+
+	// Register sdk member types.
+	android.RegisterSdkMemberType(headersLibrarySdkMemberType)
+}
+
+var headersLibrarySdkMemberType = &librarySdkMemberType{
+	SdkMemberTypeBase: android.SdkMemberTypeBase{
+		PropertyName: "native_header_libs",
+		SupportsSdk:  true,
+	},
+	prebuiltModuleType: "cc_prebuilt_library_headers",
+	linkTypes:          nil,
 }
 
 func RegisterLibraryHeadersBuildComponents(ctx android.RegistrationContext) {
@@ -32,6 +44,7 @@ func RegisterLibraryHeadersBuildComponents(ctx android.RegistrationContext) {
 func LibraryHeaderFactory() android.Module {
 	module, library := NewLibrary(android.HostAndDeviceSupported)
 	library.HeaderOnly()
+	module.sdkMemberTypes = []android.SdkMemberType{headersLibrarySdkMemberType}
 	return module.Init()
 }
 

cc/library_sdk_member.go

@@ -65,6 +65,12 @@ func (mt *librarySdkMemberType) AddDependencies(mctx android.BottomUpMutatorCont
 			if version == "" {
 				version = LatestStubsVersionFor(mctx.Config(), name)
 			}
+			if mt.linkTypes == nil {
+				mctx.AddFarVariationDependencies(append(target.Variations(), []blueprint.Variation{
+					{Mutator: "image", Variation: android.CoreVariation},
+					{Mutator: "version", Variation: version},
+				}...), dependencyTag, name)
+			} else {
 				for _, linkType := range mt.linkTypes {
 					mctx.AddFarVariationDependencies(append(target.Variations(), []blueprint.Variation{
 						{Mutator: "image", Variation: android.CoreVariation},
@@ -74,6 +80,7 @@ func (mt *librarySdkMemberType) AddDependencies(mctx android.BottomUpMutatorCont
 				}
 			}
 		}
+	}
 }
 
 func (mt *librarySdkMemberType) IsInstance(module android.Module) bool {
@@ -207,10 +214,14 @@ func (info *nativeLibInfo) generatePrebuiltLibrary(sdkModuleContext android.Modu
 	for _, av := range info.archVariantProperties {
 		archTypeProperties := archProperties.AddPropertySet(av.archType)
 
+		// If the library has some link types then it produces an output binary file, otherwise it
+		// is header only.
+		if info.memberType.linkTypes != nil {
 			// Copy the generated library to the snapshot and add a reference to it in the .bp module.
 			nativeLibraryPath := nativeLibraryPathFor(av)
 			builder.CopyToSnapshot(av.outputFile, nativeLibraryPath)
 			archTypeProperties.AddProperty("srcs", []string{nativeLibraryPath})
+		}
 
 		// Add any arch specific properties inside the appropriate arch: {<arch>: {...}} block
 		addPossiblyArchSpecificProperties(sdkModuleContext, builder, av, archTypeProperties)

sdk/cc_sdk_test.go

@@ -840,3 +840,108 @@ include/Test.h -> include/include/Test.h
 `),
 	)
 }
+
+func TestSnapshotWithCcHeadersLibrary(t *testing.T) {
+	result := testSdkWithCc(t, `
+		sdk {
+			name: "mysdk",
+			native_header_libs: ["mynativeheaders"],
+		}
+
+		cc_library_headers {
+			name: "mynativeheaders",
+			export_include_dirs: ["include"],
+			system_shared_libs: [],
+			stl: "none",
+		}
+	`)
+
+	result.CheckSnapshot("mysdk", "android_common", "",
+		checkAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+cc_prebuilt_library_headers {
+    name: "mysdk_mynativeheaders@current",
+    sdk_member_name: "mynativeheaders",
+    export_include_dirs: ["include/include"],
+    stl: "none",
+    system_shared_libs: [],
+}
+
+cc_prebuilt_library_headers {
+    name: "mynativeheaders",
+    prefer: false,
+    export_include_dirs: ["include/include"],
+    stl: "none",
+    system_shared_libs: [],
+}
+
+sdk_snapshot {
+    name: "mysdk@current",
+    native_header_libs: ["mysdk_mynativeheaders@current"],
+}
+`),
+		checkAllCopyRules(`
+include/Test.h -> include/include/Test.h
+`),
+	)
+}
+
+func TestHostSnapshotWithCcHeadersLibrary(t *testing.T) {
+	// b/145598135 - Generating host snapshots for anything other than linux is not supported.
+	SkipIfNotLinux(t)
+
+	result := testSdkWithCc(t, `
+		sdk {
+			name: "mysdk",
+			device_supported: false,
+			host_supported: true,
+			native_header_libs: ["mynativeheaders"],
+		}
+
+		cc_library_headers {
+			name: "mynativeheaders",
+			device_supported: false,
+			host_supported: true,
+			export_include_dirs: ["include"],
+			system_shared_libs: [],
+			stl: "none",
+		}
+	`)
+
+	result.CheckSnapshot("mysdk", "linux_glibc_common", "",
+		checkAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+cc_prebuilt_library_headers {
+    name: "mysdk_mynativeheaders@current",
+    sdk_member_name: "mynativeheaders",
+    device_supported: false,
+    host_supported: true,
+    export_include_dirs: ["include/include"],
+    stl: "none",
+    system_shared_libs: [],
+}
+
+cc_prebuilt_library_headers {
+    name: "mynativeheaders",
+    prefer: false,
+    device_supported: false,
+    host_supported: true,
+    export_include_dirs: ["include/include"],
+    stl: "none",
+    system_shared_libs: [],
+}
+
+sdk_snapshot {
+    name: "mysdk@current",
+    device_supported: false,
+    host_supported: true,
+    native_header_libs: ["mysdk_mynativeheaders@current"],
+}
+`),
+		checkAllCopyRules(`
+include/Test.h -> include/include/Test.h
+`),
+	)
+}