1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192 |
- // Copyright 2020 The Android Open Source Project
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- package rust
- import (
- "github.com/google/blueprint"
- "android/soong/cc"
- )
- var CovLibraryName = "libprofile-clang-extras"
- var ProfilerBuiltins = "libprofiler_builtins.rust_sysroot"
- // Add '%c' to default specifier after we resolve http://b/210012154
- const profileInstrFlag = "-fprofile-instr-generate=/data/misc/trace/clang-%p-%m.profraw"
- type coverage struct {
- Properties cc.CoverageProperties
- // Whether binaries containing this module need --coverage added to their ldflags
- linkCoverage bool
- }
- func (cov *coverage) props() []interface{} {
- return []interface{}{&cov.Properties}
- }
- func (cov *coverage) deps(ctx DepsContext, deps Deps) Deps {
- if cov.Properties.NeedCoverageVariant {
- ctx.AddVariationDependencies([]blueprint.Variation{
- {Mutator: "link", Variation: "static"},
- }, cc.CoverageDepTag, CovLibraryName)
- // no_std modules are missing libprofiler_builtins which provides coverage, so we need to add it as a dependency.
- if rustModule, ok := ctx.Module().(*Module); ok && rustModule.compiler.noStdlibs() {
- ctx.AddVariationDependencies([]blueprint.Variation{{Mutator: "rust_libraries", Variation: "rlib"}}, rlibDepTag, ProfilerBuiltins)
- }
- }
- return deps
- }
- func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags, PathDeps) {
- if !ctx.DeviceConfig().NativeCoverageEnabled() {
- return flags, deps
- }
- if cov.Properties.CoverageEnabled {
- flags.Coverage = true
- coverage := ctx.GetDirectDepWithTag(CovLibraryName, cc.CoverageDepTag).(cc.LinkableInterface)
- flags.RustFlags = append(flags.RustFlags,
- "-C instrument-coverage", "-g")
- flags.LinkFlags = append(flags.LinkFlags,
- profileInstrFlag, "-g", coverage.OutputFile().Path().String(), "-Wl,--wrap,open")
- deps.LibDeps = append(deps.LibDeps, coverage.OutputFile().Path())
- // no_std modules are missing libprofiler_builtins which provides coverage, so we need to add it as a dependency.
- if rustModule, ok := ctx.Module().(*Module); ok && rustModule.compiler.noStdlibs() {
- profiler_builtins := ctx.GetDirectDepWithTag(ProfilerBuiltins, rlibDepTag).(*Module)
- deps.RLibs = append(deps.RLibs, RustLibrary{Path: profiler_builtins.OutputFile().Path(), CrateName: profiler_builtins.CrateName()})
- }
- if cc.EnableContinuousCoverage(ctx) {
- flags.RustFlags = append(flags.RustFlags, "-C llvm-args=--runtime-counter-relocation")
- flags.LinkFlags = append(flags.LinkFlags, "-Wl,-mllvm,-runtime-counter-relocation")
- }
- }
- return flags, deps
- }
- func (cov *coverage) begin(ctx BaseModuleContext) {
- if ctx.Host() {
- // Host coverage not yet supported.
- } else {
- // Update useSdk and sdkVersion args if Rust modules become SDK aware.
- cov.Properties = cc.SetCoverageProperties(ctx, cov.Properties, ctx.RustModule().nativeCoverage(), false, "")
- }
- }
|