9a24d90936
//visibility:any_system_partition, //visibility:any_vendor_partition, etc. Then, if a partition visibility rule is not specificed, but the module is installed on a non-system partition via the `vendor: true` or other properties, the visibility rule for that partition will be added by default. This is so that "any_partition" doesn't imply that modules could be put on the vendor partition when they weren't designed for that, and so that modules that do need to go on the vendor partition don't need to specify both vendor: true and visibility:any_vendor_partition. Eventually, the partition properties should be deprecated, and replaced with just these visibility rules. Bug: 321000103 Test: go tests Change-Id: I24dba36bbc20921941f892480bf7c050e93827c6
81 lines
3 KiB
Go
81 lines
3 KiB
Go
// Copyright (C) 2021 The Android Open Source Project
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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 filesystem
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import (
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"android/soong/android"
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"android/soong/linkerconfig"
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)
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type systemImage struct {
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filesystem
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properties systemImageProperties
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}
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type systemImageProperties struct {
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// Path to the input linker config json file.
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Linker_config_src *string
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}
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// android_system_image is a specialization of android_filesystem for the 'system' partition.
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// Currently, the only difference is the inclusion of linker.config.pb file which specifies
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// the provided and the required libraries to and from APEXes.
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func systemImageFactory() android.Module {
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module := &systemImage{}
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module.AddProperties(&module.properties)
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module.filesystem.buildExtraFiles = module.buildExtraFiles
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module.filesystem.filterPackagingSpec = module.filterPackagingSpec
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initFilesystemModule(&module.filesystem)
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return module
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}
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func (s *systemImage) buildExtraFiles(ctx android.ModuleContext, root android.OutputPath) android.OutputPaths {
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if s.filesystem.properties.Partition_type != nil {
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ctx.PropertyErrorf("partition_type", "partition_type must be unset on an android_system_image module. It is assumed to be 'system'.")
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}
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lc := s.buildLinkerConfigFile(ctx, root)
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// Add more files if needed
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return []android.OutputPath{lc}
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}
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func (s *systemImage) buildLinkerConfigFile(ctx android.ModuleContext, root android.OutputPath) android.OutputPath {
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input := android.PathForModuleSrc(ctx, android.String(s.properties.Linker_config_src))
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output := root.Join(ctx, "system", "etc", "linker.config.pb")
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// we need "Module"s for packaging items
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var otherModules []android.Module
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deps := s.gatherFilteredPackagingSpecs(ctx)
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ctx.WalkDeps(func(child, parent android.Module) bool {
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for _, ps := range child.PackagingSpecs() {
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if _, ok := deps[ps.RelPathInPackage()]; ok {
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otherModules = append(otherModules, child)
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}
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}
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return true
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})
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builder := android.NewRuleBuilder(pctx, ctx)
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linkerconfig.BuildLinkerConfig(ctx, builder, input, otherModules, output)
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builder.Build("conv_linker_config", "Generate linker config protobuf "+output.String())
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return output
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}
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// Filter the result of GatherPackagingSpecs to discard items targeting outside "system" partition.
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// Note that "apex" module installs its contents to "apex"(fake partition) as well
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// for symbol lookup by imitating "activated" paths.
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func (s *systemImage) filterPackagingSpec(ps android.PackagingSpec) bool {
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return ps.Partition() == "system"
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}
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