a0cd8f9acb
This adds gcov coverage support for Rust device library and binary modules (including test modules). Support is provided to pass Rust static library gcno files to CC modules and visa versa. Additional changes: * Begin mutator added for Rust modules. * SuffixInList added to android package. * CoverageEnabled added to Coverage interface. * CoverageFiles added to LinkableLibrary interface. * Fix in coverage mutator for non-CC modules which marked the wrong variant as the coverage variant. * Added coverage libraries to the cc.GatherRequiredDepsForTest. Bug: 146448203 Test: NATIVE_COVERAGE=true COVERAGE_PATHS='*' m -j <rust_module> Change-Id: If20728bdde42a1dd544a35a40f0d981b80a5835f
139 lines
4.1 KiB
Go
139 lines
4.1 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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coverageOutputZipFile 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", "", 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) 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) 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.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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outputs := TransformSrcToBinary(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
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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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