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
139 lines
4 KiB
Go
139 lines
4 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_binary", RustBinaryFactory)
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android.RegisterModuleType("rust_binary_host", RustBinaryHostFactory)
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}
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type BinaryCompilerProperties struct {
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}
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type binaryDecorator struct {
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*baseCompiler
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stripper Stripper
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Properties BinaryCompilerProperties
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}
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var _ compiler = (*binaryDecorator)(nil)
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// rust_binary produces a binary that is runnable on a device.
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func RustBinaryFactory() android.Module {
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module, _ := NewRustBinary(android.HostAndDeviceSupported)
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return module.Init()
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}
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func RustBinaryHostFactory() android.Module {
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module, _ := NewRustBinary(android.HostSupported)
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return module.Init()
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}
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func NewRustBinary(hod android.HostOrDeviceSupported) (*Module, *binaryDecorator) {
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module := newModule(hod, android.MultilibFirst)
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binary := &binaryDecorator{
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baseCompiler: NewBaseCompiler("bin", "", InstallInSystem),
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}
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module.compiler = binary
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return module, binary
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}
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func (binary *binaryDecorator) compilerFlags(ctx ModuleContext, flags Flags) Flags {
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flags = binary.baseCompiler.compilerFlags(ctx, flags)
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if ctx.toolchain().Bionic() {
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// no-undefined-version breaks dylib compilation since __rust_*alloc* functions aren't defined,
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// but we can apply this to binaries.
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flags.LinkFlags = append(flags.LinkFlags,
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"-Wl,--gc-sections",
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"-Wl,-z,nocopyreloc",
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"-Wl,--no-undefined-version")
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}
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return flags
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}
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func (binary *binaryDecorator) compilerDeps(ctx DepsContext, deps Deps) Deps {
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deps = binary.baseCompiler.compilerDeps(ctx, deps)
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if ctx.toolchain().Bionic() {
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deps = bionicDeps(deps)
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deps.CrtBegin = "crtbegin_dynamic"
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deps.CrtEnd = "crtend_android"
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}
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return deps
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}
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func (binary *binaryDecorator) compilerProps() []interface{} {
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return append(binary.baseCompiler.compilerProps(),
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&binary.Properties,
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&binary.stripper.StripProperties)
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}
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func (binary *binaryDecorator) nativeCoverage() bool {
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return true
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}
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func (binary *binaryDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) android.Path {
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fileName := binary.getStem(ctx) + ctx.toolchain().ExecutableSuffix()
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srcPath, _ := srcPathFromModuleSrcs(ctx, binary.baseCompiler.Properties.Srcs)
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outputFile := android.PathForModuleOut(ctx, fileName)
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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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outputs := TransformSrcToBinary(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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if binary.stripper.NeedsStrip(ctx) {
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strippedOutputFile := android.PathForModuleOut(ctx, "stripped", fileName)
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binary.stripper.StripExecutableOrSharedLib(ctx, outputFile, strippedOutputFile)
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binary.strippedOutputFile = android.OptionalPathForPath(strippedOutputFile)
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}
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binary.coverageFile = outputs.coverageFile
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var coverageFiles android.Paths
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if outputs.coverageFile != nil {
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coverageFiles = append(coverageFiles, binary.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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binary.coverageOutputZipFile = TransformCoverageFilesToZip(ctx, coverageFiles, binary.getStem(ctx))
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return outputFile
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}
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func (binary *binaryDecorator) coverageOutputZipPath() android.OptionalPath {
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return binary.coverageOutputZipFile
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}
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func (binary *binaryDecorator) autoDep(ctx BaseModuleContext) autoDep {
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// Binaries default to dylib dependencies for device, rlib for host.
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if ctx.Device() {
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return dylibAutoDep
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} else {
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return rlibAutoDep
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}
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}
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