120 lines
3.5 KiB
Go
120 lines
3.5 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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// path to the main source file that contains the program entry point (e.g. src/main.rs)
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Srcs []string `android:"path,arch_variant"`
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// passes -C prefer-dynamic to rustc, which tells it to dynamically link the stdlib
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// (assuming it has no dylib dependencies already)
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Prefer_dynamic *bool
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}
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type binaryDecorator struct {
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*baseCompiler
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Properties BinaryCompilerProperties
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distFile android.OptionalPath
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unstrippedOutputFile android.Path
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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", ""),
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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) preferDynamic() bool {
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return Bool(binary.Properties.Prefer_dynamic)
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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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if binary.preferDynamic() {
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flags.RustFlags = append(flags.RustFlags, "-C prefer-dynamic")
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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 = binary.baseCompiler.bionicDeps(ctx, 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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}
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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.Properties.Srcs)
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outputFile := android.PathForModuleOut(ctx, fileName)
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binary.unstrippedOutputFile = outputFile
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flags.RustFlags = append(flags.RustFlags, deps.depFlags...)
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TransformSrcToBinary(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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return outputFile
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}
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