fabaff6bd7
Reuses the cc.Stripper logic. Abstracts Stripper to avoid the spreading of references to the cc package. rustc requires unstripped libraries (precisely, with the `.rustc` section) when building dependent targets. Contrary to cc, the output of a compiler module will remain unstripped and only an extra build rule will be added. This rule will be referenced at install time (in baseCompiler.install or androidmk). This change drastically reduces the size of the installed libraries: (unstripped, from out/target/product/crosshatch/system) $ find . -name \*.dylib.so -print0 | du -c --files0-from=- 149996 total (stripped, with this change) $ find . -name \*.dylib.so -print0 | du -c --files0-from=- 42380 total Bug: 153430439 Test: cd external/rust; mma Change-Id: I94fd8bbcec97e0610aa325d3db4460be84d01734
124 lines
3.7 KiB
Go
124 lines
3.7 KiB
Go
// Copyright 2019 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 rust
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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("rust_prebuilt_library", PrebuiltLibraryFactory)
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android.RegisterModuleType("rust_prebuilt_dylib", PrebuiltDylibFactory)
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android.RegisterModuleType("rust_prebuilt_rlib", PrebuiltRlibFactory)
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}
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type PrebuiltProperties struct {
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// path to the prebuilt file
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Srcs []string `android:"path,arch_variant"`
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// directories containing associated rlib dependencies
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Link_dirs []string `android:"path,arch_variant"`
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}
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type prebuiltLibraryDecorator struct {
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*libraryDecorator
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Properties PrebuiltProperties
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}
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var _ compiler = (*prebuiltLibraryDecorator)(nil)
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var _ exportedFlagsProducer = (*prebuiltLibraryDecorator)(nil)
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func PrebuiltLibraryFactory() android.Module {
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module, _ := NewPrebuiltLibrary(android.HostAndDeviceSupported)
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return module.Init()
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}
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func PrebuiltDylibFactory() android.Module {
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module, _ := NewPrebuiltDylib(android.HostAndDeviceSupported)
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return module.Init()
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}
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func PrebuiltRlibFactory() android.Module {
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module, _ := NewPrebuiltRlib(android.HostAndDeviceSupported)
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return module.Init()
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}
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func NewPrebuiltLibrary(hod android.HostOrDeviceSupported) (*Module, *prebuiltLibraryDecorator) {
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module, library := NewRustLibrary(hod)
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library.BuildOnlyRust()
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library.setNoStdlibs()
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prebuilt := &prebuiltLibraryDecorator{
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libraryDecorator: library,
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}
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module.compiler = prebuilt
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return module, prebuilt
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}
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func NewPrebuiltDylib(hod android.HostOrDeviceSupported) (*Module, *prebuiltLibraryDecorator) {
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module, library := NewRustLibrary(hod)
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library.BuildOnlyDylib()
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library.setNoStdlibs()
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prebuilt := &prebuiltLibraryDecorator{
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libraryDecorator: library,
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}
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module.compiler = prebuilt
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return module, prebuilt
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}
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func NewPrebuiltRlib(hod android.HostOrDeviceSupported) (*Module, *prebuiltLibraryDecorator) {
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module, library := NewRustLibrary(hod)
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library.BuildOnlyRlib()
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library.setNoStdlibs()
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prebuilt := &prebuiltLibraryDecorator{
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libraryDecorator: library,
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}
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module.compiler = prebuilt
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return module, prebuilt
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}
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func (prebuilt *prebuiltLibraryDecorator) compilerProps() []interface{} {
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return append(prebuilt.libraryDecorator.compilerProps(),
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&prebuilt.Properties)
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}
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func (prebuilt *prebuiltLibraryDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) android.Path {
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prebuilt.exportLinkDirs(android.PathsForModuleSrc(ctx, prebuilt.Properties.Link_dirs).Strings()...)
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srcPath, paths := srcPathFromModuleSrcs(ctx, prebuilt.prebuiltSrcs())
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if len(paths) > 0 {
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ctx.PropertyErrorf("srcs", "prebuilt libraries can only have one entry in srcs (the prebuilt path)")
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}
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return srcPath
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}
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func (prebuilt *prebuiltLibraryDecorator) compilerDeps(ctx DepsContext, deps Deps) Deps {
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deps = prebuilt.baseCompiler.compilerDeps(ctx, deps)
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return deps
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}
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func (prebuilt *prebuiltLibraryDecorator) nativeCoverage() bool {
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return false
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}
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func (prebuilt *prebuiltLibraryDecorator) prebuiltSrcs() []string {
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srcs := prebuilt.Properties.Srcs
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if prebuilt.rlib() {
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srcs = append(srcs, prebuilt.libraryDecorator.Properties.Rlib.Srcs...)
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}
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if prebuilt.dylib() {
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srcs = append(srcs, prebuilt.libraryDecorator.Properties.Dylib.Srcs...)
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}
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return srcs
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}
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