2b0811310e
The current state of linkage is that device targets always link libstd dynamically except for rust_ffi_static which requires a static libstd linkage. However this prevents producing rust_ffi_static modules which depend on other Rust libraries as those dependencies will link libstd dynamically and cause a collision. We also want our rust_test modules to statically link in libstd as well. This adds a linkage mutator for rlibs that creates a variant for each libstd linkage. Dependent modules can then select the variant that matches their linkage of libstd. Also fixes an issue where installation paths were being generated for rlibs and static libs even though they weren't being installed. This broke when adding the linkage mutator as Make would complain about multiple targets producing the same output. Bug: 168729404 Test: rust_ffi_static module with other rustlib dependency can be built. Change-Id: I955b484bf5809e8fc5517750c7f8df82d3ca8895
577 lines
18 KiB
Go
577 lines
18 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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"regexp"
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"strings"
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"android/soong/android"
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)
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var (
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DylibStdlibSuffix = ".dylib-std"
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RlibStdlibSuffix = ".rlib-std"
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)
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func init() {
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android.RegisterModuleType("rust_library", RustLibraryFactory)
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android.RegisterModuleType("rust_library_dylib", RustLibraryDylibFactory)
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android.RegisterModuleType("rust_library_rlib", RustLibraryRlibFactory)
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android.RegisterModuleType("rust_library_host", RustLibraryHostFactory)
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android.RegisterModuleType("rust_library_host_dylib", RustLibraryDylibHostFactory)
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android.RegisterModuleType("rust_library_host_rlib", RustLibraryRlibHostFactory)
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android.RegisterModuleType("rust_ffi", RustFFIFactory)
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android.RegisterModuleType("rust_ffi_shared", RustFFISharedFactory)
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android.RegisterModuleType("rust_ffi_static", RustFFIStaticFactory)
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android.RegisterModuleType("rust_ffi_host", RustFFIHostFactory)
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android.RegisterModuleType("rust_ffi_host_shared", RustFFISharedHostFactory)
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android.RegisterModuleType("rust_ffi_host_static", RustFFIStaticHostFactory)
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}
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type VariantLibraryProperties struct {
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Enabled *bool `android:"arch_variant"`
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Srcs []string `android:"path,arch_variant"`
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}
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type LibraryCompilerProperties struct {
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Rlib VariantLibraryProperties `android:"arch_variant"`
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Dylib VariantLibraryProperties `android:"arch_variant"`
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Shared VariantLibraryProperties `android:"arch_variant"`
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Static VariantLibraryProperties `android:"arch_variant"`
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// path to include directories to pass to cc_* modules, only relevant for static/shared variants.
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Include_dirs []string `android:"path,arch_variant"`
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// Whether this library is part of the Rust toolchain sysroot.
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Sysroot *bool
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}
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type LibraryMutatedProperties struct {
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// Build a dylib variant
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BuildDylib bool `blueprint:"mutated"`
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// Build an rlib variant
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BuildRlib bool `blueprint:"mutated"`
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// Build a shared library variant
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BuildShared bool `blueprint:"mutated"`
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// Build a static library variant
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BuildStatic bool `blueprint:"mutated"`
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// This variant is a dylib
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VariantIsDylib bool `blueprint:"mutated"`
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// This variant is an rlib
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VariantIsRlib bool `blueprint:"mutated"`
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// This variant is a shared library
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VariantIsShared bool `blueprint:"mutated"`
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// This variant is a static library
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VariantIsStatic bool `blueprint:"mutated"`
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// This variant is disabled and should not be compiled
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// (used for SourceProvider variants that produce only source)
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VariantIsDisabled bool `blueprint:"mutated"`
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// Whether this library variant should be link libstd via rlibs
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VariantIsStaticStd bool `blueprint:"mutated"`
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}
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type libraryDecorator struct {
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*baseCompiler
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*flagExporter
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stripper Stripper
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Properties LibraryCompilerProperties
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MutatedProperties LibraryMutatedProperties
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includeDirs android.Paths
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sourceProvider SourceProvider
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}
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type libraryInterface interface {
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rlib() bool
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dylib() bool
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static() bool
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shared() bool
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sysroot() bool
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// Returns true if the build options for the module have selected a particular build type
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buildRlib() bool
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buildDylib() bool
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buildShared() bool
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buildStatic() bool
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// Sets a particular variant type
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setRlib()
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setDylib()
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setShared()
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setStatic()
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// Set libstd linkage
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setRlibStd()
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setDylibStd()
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// Build a specific library variant
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BuildOnlyFFI()
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BuildOnlyRust()
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BuildOnlyRlib()
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BuildOnlyDylib()
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BuildOnlyStatic()
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BuildOnlyShared()
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}
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func (library *libraryDecorator) nativeCoverage() bool {
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return true
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}
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func (library *libraryDecorator) rlib() bool {
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return library.MutatedProperties.VariantIsRlib
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}
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func (library *libraryDecorator) sysroot() bool {
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return Bool(library.Properties.Sysroot)
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}
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func (library *libraryDecorator) dylib() bool {
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return library.MutatedProperties.VariantIsDylib
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}
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func (library *libraryDecorator) shared() bool {
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return library.MutatedProperties.VariantIsShared
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}
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func (library *libraryDecorator) static() bool {
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return library.MutatedProperties.VariantIsStatic
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}
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func (library *libraryDecorator) staticStd(ctx *depsContext) bool {
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// libraries should only request the staticStd when building a static FFI or when variant is staticStd
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return library.static() || library.MutatedProperties.VariantIsStaticStd
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}
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func (library *libraryDecorator) buildRlib() bool {
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return library.MutatedProperties.BuildRlib && BoolDefault(library.Properties.Rlib.Enabled, true)
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}
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func (library *libraryDecorator) buildDylib() bool {
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return library.MutatedProperties.BuildDylib && BoolDefault(library.Properties.Dylib.Enabled, true)
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}
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func (library *libraryDecorator) buildShared() bool {
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return library.MutatedProperties.BuildShared && BoolDefault(library.Properties.Shared.Enabled, true)
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}
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func (library *libraryDecorator) buildStatic() bool {
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return library.MutatedProperties.BuildStatic && BoolDefault(library.Properties.Static.Enabled, true)
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}
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func (library *libraryDecorator) setRlib() {
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library.MutatedProperties.VariantIsRlib = true
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library.MutatedProperties.VariantIsDylib = false
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library.MutatedProperties.VariantIsStatic = false
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library.MutatedProperties.VariantIsShared = false
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}
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func (library *libraryDecorator) setDylib() {
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library.MutatedProperties.VariantIsRlib = false
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library.MutatedProperties.VariantIsDylib = true
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library.MutatedProperties.VariantIsStatic = false
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library.MutatedProperties.VariantIsShared = false
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}
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func (library *libraryDecorator) setRlibStd() {
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library.MutatedProperties.VariantIsStaticStd = true
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}
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func (library *libraryDecorator) setDylibStd() {
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library.MutatedProperties.VariantIsStaticStd = false
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}
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func (library *libraryDecorator) setShared() {
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library.MutatedProperties.VariantIsStatic = false
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library.MutatedProperties.VariantIsShared = true
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library.MutatedProperties.VariantIsRlib = false
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library.MutatedProperties.VariantIsDylib = false
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}
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func (library *libraryDecorator) setStatic() {
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library.MutatedProperties.VariantIsStatic = true
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library.MutatedProperties.VariantIsShared = false
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library.MutatedProperties.VariantIsRlib = false
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library.MutatedProperties.VariantIsDylib = false
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}
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func (library *libraryDecorator) autoDep(ctx BaseModuleContext) autoDep {
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if library.rlib() || library.static() {
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return rlibAutoDep
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} else if library.dylib() || library.shared() {
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return dylibAutoDep
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} else {
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panic("autoDep called on library" + ctx.ModuleName() + "that has no enabled variants.")
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}
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}
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var _ compiler = (*libraryDecorator)(nil)
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var _ libraryInterface = (*libraryDecorator)(nil)
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var _ exportedFlagsProducer = (*libraryDecorator)(nil)
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// rust_library produces all rust variants.
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func RustLibraryFactory() android.Module {
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module, library := NewRustLibrary(android.HostAndDeviceSupported)
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library.BuildOnlyRust()
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return module.Init()
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}
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// rust_ffi produces all ffi variants.
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func RustFFIFactory() android.Module {
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module, library := NewRustLibrary(android.HostAndDeviceSupported)
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library.BuildOnlyFFI()
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return module.Init()
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}
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// rust_library_dylib produces a dylib.
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func RustLibraryDylibFactory() android.Module {
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module, library := NewRustLibrary(android.HostAndDeviceSupported)
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library.BuildOnlyDylib()
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return module.Init()
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}
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// rust_library_rlib produces an rlib.
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func RustLibraryRlibFactory() android.Module {
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module, library := NewRustLibrary(android.HostAndDeviceSupported)
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library.BuildOnlyRlib()
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return module.Init()
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}
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// rust_ffi_shared produces a shared library.
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func RustFFISharedFactory() android.Module {
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module, library := NewRustLibrary(android.HostAndDeviceSupported)
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library.BuildOnlyShared()
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return module.Init()
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}
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// rust_ffi_static produces a static library.
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func RustFFIStaticFactory() android.Module {
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module, library := NewRustLibrary(android.HostAndDeviceSupported)
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library.BuildOnlyStatic()
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return module.Init()
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}
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// rust_library_host produces all rust variants.
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func RustLibraryHostFactory() android.Module {
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module, library := NewRustLibrary(android.HostSupported)
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library.BuildOnlyRust()
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return module.Init()
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}
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// rust_ffi_host produces all FFI variants.
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func RustFFIHostFactory() android.Module {
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module, library := NewRustLibrary(android.HostSupported)
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library.BuildOnlyFFI()
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return module.Init()
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}
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// rust_library_dylib_host produces a dylib.
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func RustLibraryDylibHostFactory() android.Module {
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module, library := NewRustLibrary(android.HostSupported)
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library.BuildOnlyDylib()
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return module.Init()
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}
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// rust_library_rlib_host produces an rlib.
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func RustLibraryRlibHostFactory() android.Module {
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module, library := NewRustLibrary(android.HostSupported)
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library.BuildOnlyRlib()
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return module.Init()
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}
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// rust_ffi_static_host produces a static library.
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func RustFFIStaticHostFactory() android.Module {
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module, library := NewRustLibrary(android.HostSupported)
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library.BuildOnlyStatic()
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return module.Init()
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}
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// rust_ffi_shared_host produces an shared library.
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func RustFFISharedHostFactory() android.Module {
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module, library := NewRustLibrary(android.HostSupported)
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library.BuildOnlyShared()
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return module.Init()
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}
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func (library *libraryDecorator) BuildOnlyFFI() {
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library.MutatedProperties.BuildDylib = false
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library.MutatedProperties.BuildRlib = false
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library.MutatedProperties.BuildShared = true
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library.MutatedProperties.BuildStatic = true
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}
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func (library *libraryDecorator) BuildOnlyRust() {
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library.MutatedProperties.BuildDylib = true
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library.MutatedProperties.BuildRlib = true
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library.MutatedProperties.BuildShared = false
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library.MutatedProperties.BuildStatic = false
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}
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func (library *libraryDecorator) BuildOnlyDylib() {
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library.MutatedProperties.BuildDylib = true
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library.MutatedProperties.BuildRlib = false
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library.MutatedProperties.BuildShared = false
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library.MutatedProperties.BuildStatic = false
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}
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func (library *libraryDecorator) BuildOnlyRlib() {
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library.MutatedProperties.BuildDylib = false
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library.MutatedProperties.BuildRlib = true
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library.MutatedProperties.BuildShared = false
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library.MutatedProperties.BuildStatic = false
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}
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func (library *libraryDecorator) BuildOnlyStatic() {
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library.MutatedProperties.BuildRlib = false
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library.MutatedProperties.BuildDylib = false
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library.MutatedProperties.BuildShared = false
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library.MutatedProperties.BuildStatic = true
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}
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func (library *libraryDecorator) BuildOnlyShared() {
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library.MutatedProperties.BuildRlib = false
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library.MutatedProperties.BuildDylib = false
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library.MutatedProperties.BuildStatic = false
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library.MutatedProperties.BuildShared = true
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}
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func NewRustLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) {
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module := newModule(hod, android.MultilibBoth)
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library := &libraryDecorator{
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MutatedProperties: LibraryMutatedProperties{
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BuildDylib: false,
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BuildRlib: false,
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BuildShared: false,
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BuildStatic: false,
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},
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baseCompiler: NewBaseCompiler("lib", "lib64", InstallInSystem),
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flagExporter: NewFlagExporter(),
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}
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module.compiler = library
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return module, library
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}
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func (library *libraryDecorator) compilerProps() []interface{} {
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return append(library.baseCompiler.compilerProps(),
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&library.Properties,
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&library.MutatedProperties,
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&library.stripper.StripProperties)
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}
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func (library *libraryDecorator) compilerDeps(ctx DepsContext, deps Deps) Deps {
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deps = library.baseCompiler.compilerDeps(ctx, deps)
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if ctx.toolchain().Bionic() && (library.dylib() || library.shared()) {
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deps = bionicDeps(deps)
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deps.CrtBegin = "crtbegin_so"
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deps.CrtEnd = "crtend_so"
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}
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return deps
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}
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func (library *libraryDecorator) sharedLibFilename(ctx ModuleContext) string {
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return library.getStem(ctx) + ctx.toolchain().SharedLibSuffix()
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}
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func (library *libraryDecorator) compilerFlags(ctx ModuleContext, flags Flags) Flags {
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flags.RustFlags = append(flags.RustFlags, "-C metadata="+ctx.ModuleName())
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flags = library.baseCompiler.compilerFlags(ctx, flags)
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if library.shared() || library.static() {
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library.includeDirs = append(library.includeDirs, android.PathsForModuleSrc(ctx, library.Properties.Include_dirs)...)
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}
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if library.shared() {
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flags.LinkFlags = append(flags.LinkFlags, "-Wl,-soname="+library.sharedLibFilename(ctx))
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}
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return flags
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}
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func (library *libraryDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) android.Path {
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var outputFile android.ModuleOutPath
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var fileName string
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var srcPath android.Path
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if library.sourceProvider != nil {
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srcPath = library.sourceProvider.Srcs()[0]
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} else {
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srcPath, _ = srcPathFromModuleSrcs(ctx, library.baseCompiler.Properties.Srcs)
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}
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flags.RustFlags = append(flags.RustFlags, deps.depFlags...)
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flags.LinkFlags = append(flags.LinkFlags, deps.linkObjects...)
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if library.dylib() {
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// We need prefer-dynamic for now to avoid linking in the static stdlib. See:
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// https://github.com/rust-lang/rust/issues/19680
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// https://github.com/rust-lang/rust/issues/34909
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flags.RustFlags = append(flags.RustFlags, "-C prefer-dynamic")
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}
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if library.rlib() {
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fileName = library.getStem(ctx) + ctx.toolchain().RlibSuffix()
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outputFile = android.PathForModuleOut(ctx, fileName)
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outputs := TransformSrctoRlib(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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library.coverageFile = outputs.coverageFile
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} else if library.dylib() {
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fileName = library.getStem(ctx) + ctx.toolchain().DylibSuffix()
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outputFile = android.PathForModuleOut(ctx, fileName)
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outputs := TransformSrctoDylib(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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library.coverageFile = outputs.coverageFile
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} else if library.static() {
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fileName = library.getStem(ctx) + ctx.toolchain().StaticLibSuffix()
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outputFile = android.PathForModuleOut(ctx, fileName)
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outputs := TransformSrctoStatic(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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library.coverageFile = outputs.coverageFile
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} else if library.shared() {
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fileName = library.sharedLibFilename(ctx)
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outputFile = android.PathForModuleOut(ctx, fileName)
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outputs := TransformSrctoShared(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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library.coverageFile = outputs.coverageFile
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}
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if !library.rlib() && library.stripper.NeedsStrip(ctx) {
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strippedOutputFile := android.PathForModuleOut(ctx, "stripped", fileName)
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library.stripper.StripExecutableOrSharedLib(ctx, outputFile, strippedOutputFile)
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library.strippedOutputFile = android.OptionalPathForPath(strippedOutputFile)
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}
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var coverageFiles android.Paths
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if library.coverageFile != nil {
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coverageFiles = append(coverageFiles, library.coverageFile)
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}
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if len(deps.coverageFiles) > 0 {
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coverageFiles = append(coverageFiles, deps.coverageFiles...)
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}
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library.coverageOutputZipFile = TransformCoverageFilesToZip(ctx, coverageFiles, library.getStem(ctx))
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if library.rlib() || library.dylib() {
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library.exportLinkDirs(deps.linkDirs...)
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library.exportDepFlags(deps.depFlags...)
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library.exportLinkObjects(deps.linkObjects...)
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}
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return outputFile
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}
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func (library *libraryDecorator) getStem(ctx ModuleContext) string {
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stem := library.baseCompiler.getStemWithoutSuffix(ctx)
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validateLibraryStem(ctx, stem, library.crateName())
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return stem + String(library.baseCompiler.Properties.Suffix)
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}
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func (library *libraryDecorator) install(ctx ModuleContext) {
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// Only shared and dylib variants make sense to install.
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if library.shared() || library.dylib() {
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library.baseCompiler.install(ctx)
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}
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}
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func (library *libraryDecorator) Disabled() bool {
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return library.MutatedProperties.VariantIsDisabled
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}
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func (library *libraryDecorator) SetDisabled() {
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library.MutatedProperties.VariantIsDisabled = true
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}
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var validCrateName = regexp.MustCompile("[^a-zA-Z0-9_]+")
|
|
|
|
func validateLibraryStem(ctx BaseModuleContext, filename string, crate_name string) {
|
|
if crate_name == "" {
|
|
ctx.PropertyErrorf("crate_name", "crate_name must be defined.")
|
|
}
|
|
|
|
// crate_names are used for the library output file, and rustc expects these
|
|
// to be alphanumeric with underscores allowed.
|
|
if validCrateName.MatchString(crate_name) {
|
|
ctx.PropertyErrorf("crate_name",
|
|
"library crate_names must be alphanumeric with underscores allowed")
|
|
}
|
|
|
|
// Libraries are expected to begin with "lib" followed by the crate_name
|
|
if !strings.HasPrefix(filename, "lib"+crate_name) {
|
|
ctx.ModuleErrorf("Invalid name or stem property; library filenames must start with lib<crate_name>")
|
|
}
|
|
}
|
|
|
|
func LibraryMutator(mctx android.BottomUpMutatorContext) {
|
|
if m, ok := mctx.Module().(*Module); ok && m.compiler != nil {
|
|
switch library := m.compiler.(type) {
|
|
case libraryInterface:
|
|
if library.buildRlib() && library.buildDylib() {
|
|
variants := []string{"rlib", "dylib"}
|
|
if m.sourceProvider != nil {
|
|
variants = append(variants, "")
|
|
}
|
|
modules := mctx.CreateLocalVariations(variants...)
|
|
|
|
rlib := modules[0].(*Module)
|
|
dylib := modules[1].(*Module)
|
|
rlib.compiler.(libraryInterface).setRlib()
|
|
dylib.compiler.(libraryInterface).setDylib()
|
|
if m.sourceProvider != nil {
|
|
// This library is SourceProvider generated, so the non-library-producing
|
|
// variant needs to disable it's compiler and skip installation.
|
|
sourceProvider := modules[2].(*Module)
|
|
sourceProvider.compiler.SetDisabled()
|
|
}
|
|
} else if library.buildRlib() {
|
|
modules := mctx.CreateLocalVariations("rlib")
|
|
modules[0].(*Module).compiler.(libraryInterface).setRlib()
|
|
} else if library.buildDylib() {
|
|
modules := mctx.CreateLocalVariations("dylib")
|
|
modules[0].(*Module).compiler.(libraryInterface).setDylib()
|
|
}
|
|
|
|
if m.sourceProvider != nil {
|
|
// Alias the non-library variant to the empty-string variant.
|
|
mctx.AliasVariation("")
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func LibstdMutator(mctx android.BottomUpMutatorContext) {
|
|
if m, ok := mctx.Module().(*Module); ok && m.compiler != nil && !m.compiler.Disabled() {
|
|
switch library := m.compiler.(type) {
|
|
case libraryInterface:
|
|
// Only create a variant if a library is actually being built.
|
|
if library.rlib() && !library.sysroot() {
|
|
variants := []string{"rlib-std", "dylib-std"}
|
|
modules := mctx.CreateLocalVariations(variants...)
|
|
|
|
rlib := modules[0].(*Module)
|
|
dylib := modules[1].(*Module)
|
|
rlib.compiler.(libraryInterface).setRlibStd()
|
|
dylib.compiler.(libraryInterface).setDylibStd()
|
|
rlib.Properties.SubName += RlibStdlibSuffix
|
|
dylib.Properties.SubName += DylibStdlibSuffix
|
|
}
|
|
}
|
|
}
|
|
}
|