0875c52de7
Wrap blueprint.PackageContext so that the *Func methods can provide
an android.Config instead of an interface{}. The modified signatures
means that every method in ModuleContext and SingletonContext
that takes a blueprint.PackageContext now needs to be wrapped to
take an android.PackageContext.
SingletonContext wasn't previously wrapped at all, but as long
as it is, wrap everything like ModuleContext does. This requires
updating every Singleton to use the android-specific methods.
Test: builds, all Soong tests pass
Change-Id: I4f22085ebca7def6c5cde49e8210b59d994ba625
135 lines
4.7 KiB
Go
135 lines
4.7 KiB
Go
// Copyright 2016 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cc
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// The platform needs to provide the following artifacts for the NDK:
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// 1. Bionic headers.
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// 2. Platform API headers.
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// 3. NDK stub shared libraries.
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// 4. Bionic static libraries.
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//
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// TODO(danalbert): All of the above need to include NOTICE files.
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//
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// Components 1 and 2: Headers
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// The bionic and platform API headers are generalized into a single
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// `ndk_headers` rule. This rule has a `from` property that indicates a base
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// directory from which headers are to be taken, and a `to` property that
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// indicates where in the sysroot they should reside relative to usr/include.
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// There is also a `srcs` property that is glob compatible for specifying which
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// headers to include.
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//
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// Component 3: Stub Libraries
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// The shared libraries in the NDK are not the actual shared libraries they
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// refer to (to prevent people from accidentally loading them), but stub
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// libraries with dummy implementations of everything for use at build time
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// only.
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//
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// Since we don't actually need to know anything about the stub libraries aside
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// from a list of functions and globals to be exposed, we can create these for
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// every platform level in the current tree. This is handled by the
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// ndk_library rule.
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//
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// Component 4: Static Libraries
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// The NDK only provides static libraries for bionic, not the platform APIs.
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// Since these need to be the actual implementation, we can't build old versions
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// in the current platform tree. As such, legacy versions are checked in
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// prebuilt to development/ndk, and a current version is built and archived as
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// part of the platform build. The platfrom already builds these libraries, our
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// NDK build rules only need to archive them for retrieval so they can be added
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// to the prebuilts.
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//
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// TODO(danalbert): Write `ndk_static_library` rule.
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import (
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"android/soong/android"
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)
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func init() {
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android.RegisterModuleType("ndk_headers", ndkHeadersFactory)
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android.RegisterModuleType("ndk_library", ndkLibraryFactory)
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android.RegisterModuleType("preprocessed_ndk_headers", preprocessedNdkHeadersFactory)
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android.RegisterSingletonType("ndk", NdkSingleton)
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pctx.Import("android/soong/common")
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}
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func getNdkInstallBase(ctx android.PathContext) android.OutputPath {
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return android.PathForOutput(ctx, "ndk")
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}
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// Returns the main install directory for the NDK sysroot. Usable with --sysroot.
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func getNdkSysrootBase(ctx android.PathContext) android.OutputPath {
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return getNdkInstallBase(ctx).Join(ctx, "sysroot")
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}
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func getNdkSysrootTimestampFile(ctx android.PathContext) android.WritablePath {
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return android.PathForOutput(ctx, "ndk.timestamp")
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}
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func NdkSingleton() android.Singleton {
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return &ndkSingleton{}
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}
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type ndkSingleton struct{}
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func (n *ndkSingleton) GenerateBuildActions(ctx android.SingletonContext) {
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var installPaths android.Paths
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var licensePaths android.Paths
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ctx.VisitAllModules(func(module android.Module) {
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if m, ok := module.(android.Module); ok && !m.Enabled() {
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return
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}
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if m, ok := module.(*headerModule); ok {
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installPaths = append(installPaths, m.installPaths...)
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licensePaths = append(licensePaths, m.licensePath)
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}
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if m, ok := module.(*preprocessedHeaderModule); ok {
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installPaths = append(installPaths, m.installPaths...)
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licensePaths = append(licensePaths, m.licensePath)
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}
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if m, ok := module.(*Module); ok {
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if installer, ok := m.installer.(*stubDecorator); ok {
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installPaths = append(installPaths, installer.installPath)
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}
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if library, ok := m.linker.(*libraryDecorator); ok {
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if library.ndkSysrootPath != nil {
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installPaths = append(installPaths, library.ndkSysrootPath)
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}
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}
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}
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})
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combinedLicense := getNdkInstallBase(ctx).Join(ctx, "NOTICE")
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ctx.Build(pctx, android.BuildParams{
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Rule: android.Cat,
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Description: "combine licenses",
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Output: combinedLicense,
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Inputs: licensePaths,
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})
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depPaths := append(installPaths, combinedLicense)
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// There's a dummy "ndk" rule defined in ndk/Android.mk that depends on
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// this. `m ndk` will build the sysroots.
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ctx.Build(pctx, android.BuildParams{
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Rule: android.Touch,
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Output: getNdkSysrootTimestampFile(ctx),
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Implicits: depPaths,
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})
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}
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