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// Copyright 2016 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 cc
import (
"strings"
"android/soong/android"
)
func init() {
android.RegisterModuleType("ndk_prebuilt_static_stl", NdkPrebuiltStaticStlFactory)
android.RegisterModuleType("ndk_prebuilt_shared_stl", NdkPrebuiltSharedStlFactory)
}
// NDK prebuilt libraries.
//
// These differ from regular prebuilts in that they aren't stripped and usually aren't installed
// either (with the exception of the shared STLs, which are installed to the app's directory rather
// than to the system image).
type ndkPrebuiltStlLinker struct {
*libraryDecorator
}
func (ndk *ndkPrebuiltStlLinker) linkerProps() []interface{} {
return append(ndk.libraryDecorator.linkerProps(), &ndk.Properties, &ndk.flagExporter.Properties)
}
func (*ndkPrebuiltStlLinker) linkerDeps(ctx DepsContext, deps Deps) Deps {
// NDK libraries can't have any dependencies
return deps
}
func (*ndkPrebuiltStlLinker) availableFor(what string) bool {
// ndk prebuilt objects are available to everywhere
return true
}
// ndk_prebuilt_shared_stl exports a precompiled ndk shared standard template
// library (stl) library for linking operation. The soong's module name format
// is ndk_<NAME>.so where the library is located under
// ./prebuilts/ndk/current/sources/cxx-stl/llvm-libc++/libs/$(HOST_ARCH)/<NAME>.so.
func NdkPrebuiltSharedStlFactory() android.Module {
module, library := NewLibrary(android.DeviceSupported)
library.BuildOnlyShared()
module.compiler = nil
module.linker = &ndkPrebuiltStlLinker{
libraryDecorator: library,
}
module.installer = nil
module.Properties.Sdk_version = StringPtr("minimum")
module.Properties.AlwaysSdk = true
module.stl.Properties.Stl = StringPtr("none")
return module.Init()
}
// ndk_prebuilt_static_stl exports a precompiled ndk static standard template
// library (stl) library for linking operation. The soong's module name format
// is ndk_<NAME>.a where the library is located under
// ./prebuilts/ndk/current/sources/cxx-stl/llvm-libc++/libs/$(HOST_ARCH)/<NAME>.a.
func NdkPrebuiltStaticStlFactory() android.Module {
module, library := NewLibrary(android.DeviceSupported)
library.BuildOnlyStatic()
module.compiler = nil
module.linker = &ndkPrebuiltStlLinker{
libraryDecorator: library,
}
module.installer = nil
module.Properties.Sdk_version = StringPtr("minimum")
module.Properties.HideFromMake = true
module.Properties.AlwaysSdk = true
module.Properties.Sdk_version = StringPtr("current")
module.stl.Properties.Stl = StringPtr("none")
return module.Init()
}
const (
libDir = "current/sources/cxx-stl/llvm-libc++/libs"
)
func getNdkStlLibDir(ctx android.ModuleContext) android.SourcePath {
return android.PathForSource(ctx, ctx.ModuleDir(), libDir).Join(ctx, ctx.Arch().Abi[0])
}
func (ndk *ndkPrebuiltStlLinker) link(ctx ModuleContext, flags Flags,
deps PathDeps, objs Objects) android.Path {
// A null build step, but it sets up the output path.
if !strings.HasPrefix(ctx.ModuleName(), "ndk_lib") {
ctx.ModuleErrorf("NDK prebuilt libraries must have an ndk_lib prefixed name")
}
ndk.libraryDecorator.flagExporter.exportIncludesAsSystem(ctx)
libName := strings.TrimPrefix(ctx.ModuleName(), "ndk_")
libExt := flags.Toolchain.ShlibSuffix()
if ndk.static() {
libExt = staticLibraryExtension
}
libDir := getNdkStlLibDir(ctx)
lib := libDir.Join(ctx, libName+libExt)
ndk.libraryDecorator.flagExporter.setProvider(ctx)
if ndk.static() {
depSet := android.NewDepSetBuilder[android.Path](android.TOPOLOGICAL).Direct(lib).Build()
android.SetProvider(ctx, StaticLibraryInfoProvider, StaticLibraryInfo{
StaticLibrary: lib,
TransitiveStaticLibrariesForOrdering: depSet,
})
} else {
android.SetProvider(ctx, SharedLibraryInfoProvider, SharedLibraryInfo{
SharedLibrary: lib,
Target: ctx.Target(),
})
}
return lib
}
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