bb3add1104
With proper prebuilt modules, we can avoid any rustc implicit sysroot searching. Asd a bonus, this should make rust-project.json generation correctly grab otherwise implicit dependencies. Prebuilt rlibs may include several dependency rlibs. Without a link_dirs attribute, every dependency (even if unexported) would need a separate module. Previously we were casing out on exact structs, which might be OK when libraryDecorator and procMacroDecorator were the only possibilities, but repeating the logic for three types is too much. Using an interface makes this logic scale better. Bug: 159591910 Test: cd external/rust; mma; m crosvm.experimental Change-Id: Ia1124e09f48cd05e39f094bbcb988622ebd2272f
125 lines
3.6 KiB
Go
125 lines
3.6 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 := srcPathFromModuleSrcs(ctx, prebuilt.prebuiltSrcs())
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prebuilt.unstrippedOutputFile = srcPath
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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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