0de8a1e17b
Export information about static libraries, shared libraries and exported flags through Providers instead of accessing the module directly. Much more is left to be converted, but this significantly simplifies the dependencies on libraries with stubs by making it easy for a module to masquerade as another by simply exporting the providers from the other module. Instead of depending on all the versions of a library and then picking which one to use later, it can depend only on the implementation variant and then select the right SharedLibraryInfo from the variant. Test: m checkbuild Test: only expected changes to build.ninja Change-Id: I1fd9eb4d251cf96ed8398d586efc3e0817663c76
54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
// Copyright 2017 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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import (
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"android/soong/android"
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)
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type kernelHeadersDecorator struct {
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*libraryDecorator
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}
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func (stub *kernelHeadersDecorator) link(ctx ModuleContext, flags Flags, deps PathDeps, objs Objects) android.Path {
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if ctx.Device() {
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f := &stub.libraryDecorator.flagExporter
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f.reexportSystemDirs(android.PathsForSource(ctx, ctx.DeviceConfig().DeviceKernelHeaderDirs())...)
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f.setProvider(ctx)
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}
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return stub.libraryDecorator.linkStatic(ctx, flags, deps, objs)
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}
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// kernel_headers retrieves the list of kernel headers directories from
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// TARGET_BOARD_KERNEL_HEADERS and TARGET_PRODUCT_KERNEL_HEADERS variables in
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// a makefile for compilation. See
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// https://android.googlesource.com/platform/build/+/master/core/config.mk
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// for more details on them.
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func kernelHeadersFactory() android.Module {
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module, library := NewLibrary(android.HostAndDeviceSupported)
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library.HeaderOnly()
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stub := &kernelHeadersDecorator{
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libraryDecorator: library,
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}
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module.linker = stub
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return module.Init()
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}
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func init() {
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android.RegisterModuleType("kernel_headers", kernelHeadersFactory)
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}
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