Introduce cc_api_library
Introduce cc_api_library, which reflects imported API from other
inner-tree. This cc_api_library module type will later refer from
the other ninja module which generates stub library from the interface
description.
Tested environment :
* original libc definition has been removed temporarily, to ensure that
imported api stub library is being used from build
* Added new definition of libc as below
cc_api_library {
name: "libc",
arch: {
x86: {
src: "libs/x86/libc.so",
},
x86_64: {
src: "libs/x86_64/libc.so",
},
},
header_libs: [
"libc_headers",
],
export_header_lib_headers: ["libc_headers"],
min_sdk_version: "9",
vendor_available: true,
}
Bug: 236087698
Test: `ALLOW_MISSING_DEPENDENCIES=true m vendorimage` succeeded
Change-Id: I67070b0f3561aa2afd73b6c1c0fdf4255218baac
diff --git a/multitree/api_imports.go b/multitree/api_imports.go
new file mode 100644
index 0000000..2c4cf80
--- /dev/null
+++ b/multitree/api_imports.go
@@ -0,0 +1,88 @@
+// Copyright 2022 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package multitree
+
+import (
+ "android/soong/android"
+
+ "github.com/google/blueprint"
+)
+
+var (
+ apiImportNameSuffix = ".apiimport"
+)
+
+func init() {
+ RegisterApiImportsModule(android.InitRegistrationContext)
+}
+
+func RegisterApiImportsModule(ctx android.RegistrationContext) {
+ ctx.RegisterModuleType("api_imports", apiImportsFactory)
+}
+
+type ApiImports struct {
+ android.ModuleBase
+ properties apiImportsProperties
+}
+
+type apiImportsProperties struct {
+ Shared_libs []string // List of C shared libraries from API surfaces
+ Header_libs []string // List of C header libraries from API surfaces
+}
+
+// 'api_imports' is a module which describes modules available from API surfaces.
+// This module is required to get the list of all imported API modules, because
+// it is discouraged to loop and fetch all modules from its type information. The
+// only module with name 'api_imports' will be used from the build.
+func apiImportsFactory() android.Module {
+ module := &ApiImports{}
+ module.AddProperties(&module.properties)
+ android.InitAndroidModule(module)
+ return module
+}
+
+func (imports *ApiImports) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+ // ApiImport module does not generate any build actions
+}
+
+type ApiImportInfo struct {
+ SharedLibs, HeaderLibs map[string]string
+}
+
+var ApiImportsProvider = blueprint.NewMutatorProvider(ApiImportInfo{}, "deps")
+
+// Store module lists into ApiImportInfo and share it over mutator provider.
+func (imports *ApiImports) DepsMutator(ctx android.BottomUpMutatorContext) {
+ generateNameMapWithSuffix := func(names []string) map[string]string {
+ moduleNameMap := make(map[string]string)
+ for _, name := range names {
+ moduleNameMap[name] = name + apiImportNameSuffix
+ }
+
+ return moduleNameMap
+ }
+
+ sharedLibs := generateNameMapWithSuffix(imports.properties.Shared_libs)
+ headerLibs := generateNameMapWithSuffix(imports.properties.Header_libs)
+
+ ctx.SetProvider(ApiImportsProvider, ApiImportInfo{
+ SharedLibs: sharedLibs,
+ HeaderLibs: headerLibs,
+ })
+}
+
+func GetApiImportSuffix() string {
+ return apiImportNameSuffix
+}