platform_build_soong/filesystem/system_image.go
Jooyung Han df09d173ca Generate linker config with packaged items.
Previously, we gather all deps without checking if a dep is actually one
of packaged items (CopyDepsToZip contents)

For example, following items shouldn't be listed.

provideLibs: "platform-mainline-sdk_libartpalette-system@current.so"
provideLibs: "platform-mainline-sdk_liblog@current.so"
provideLibs: "runtime-module-sdk_libc@current.so"
provideLibs: "runtime-module-sdk_libdl@current.so"
provideLibs: "runtime-module-sdk_libdl_android@current.so"
provideLibs: "runtime-module-sdk_libm@current.so"

Now, we gather only those modules contributing CopyDepsToZip to generate
linker config for android_system_image.

Test: m nothing
Test: m microdroid
Test: conv_linker_config print -s
    .../microdroid/android_common/root/system/etc/linker.config.pb
    shouldn't list sdk members.
Change-Id: Ife5d2193ab59970367d10e196aaaa922c6582862
2021-05-11 11:56:54 +09:00

70 lines
2.4 KiB
Go

// Copyright (C) 2021 The Android Open Source Project
//
// 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 filesystem
import (
"android/soong/android"
"android/soong/linkerconfig"
)
type systemImage struct {
filesystem
properties systemImageProperties
}
type systemImageProperties struct {
// Path to the input linker config json file.
Linker_config_src *string
}
// android_system_image is a specialization of android_filesystem for the 'system' partition.
// Currently, the only difference is the inclusion of linker.config.pb file which specifies
// the provided and the required libraries to and from APEXes.
func systemImageFactory() android.Module {
module := &systemImage{}
module.AddProperties(&module.properties)
module.filesystem.buildExtraFiles = module.buildExtraFiles
initFilesystemModule(&module.filesystem)
return module
}
func (s *systemImage) buildExtraFiles(ctx android.ModuleContext, root android.OutputPath) android.OutputPaths {
lc := s.buildLinkerConfigFile(ctx, root)
// Add more files if needed
return []android.OutputPath{lc}
}
func (s *systemImage) buildLinkerConfigFile(ctx android.ModuleContext, root android.OutputPath) android.OutputPath {
input := android.PathForModuleSrc(ctx, android.String(s.properties.Linker_config_src))
output := root.Join(ctx, "system", "etc", "linker.config.pb")
// we need "Module"s for packaging items
var otherModules []android.Module
deps := s.GatherPackagingSpecs(ctx)
ctx.WalkDeps(func(child, parent android.Module) bool {
for _, ps := range child.PackagingSpecs() {
if _, ok := deps[ps.RelPathInPackage()]; ok {
otherModules = append(otherModules, child)
}
}
return true
})
builder := android.NewRuleBuilder(pctx, ctx)
linkerconfig.BuildLinkerConfig(ctx, builder, input, otherModules, output)
builder.Build("conv_linker_config", "Generate linker config protobuf "+output.String())
return output
}