9ef9cb8b3f
Coverage builds for no_std crates currently fail because profiler_builtins are part of libstd and therefore do not get included. When calculating the dependencies for coverage enabled targets, check if the stdlib is being included, and if it is not then pull the profiler_builtins sysroot. Bug: 249551848 Test: CLANG_COVERAGE=true NATIVE_COVERAGE_PATHS='*' make libtinyvec_nostd.rlib-std Change-Id: I73f89bddcb2d4d9c704cb3962ee39b73888c7f3f
92 lines
3.3 KiB
Go
92 lines
3.3 KiB
Go
// Copyright 2020 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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"github.com/google/blueprint"
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"android/soong/cc"
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)
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var CovLibraryName = "libprofile-clang-extras"
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var ProfilerBuiltins = "libprofiler_builtins.rust_sysroot"
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// Add '%c' to default specifier after we resolve http://b/210012154
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const profileInstrFlag = "-fprofile-instr-generate=/data/misc/trace/clang-%p-%m.profraw"
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type coverage struct {
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Properties cc.CoverageProperties
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// Whether binaries containing this module need --coverage added to their ldflags
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linkCoverage bool
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}
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func (cov *coverage) props() []interface{} {
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return []interface{}{&cov.Properties}
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}
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func (cov *coverage) deps(ctx DepsContext, deps Deps) Deps {
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if cov.Properties.NeedCoverageVariant {
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ctx.AddVariationDependencies([]blueprint.Variation{
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{Mutator: "link", Variation: "static"},
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}, cc.CoverageDepTag, CovLibraryName)
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// no_std modules are missing libprofiler_builtins which provides coverage, so we need to add it as a dependency.
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if rustModule, ok := ctx.Module().(*Module); ok && rustModule.compiler.noStdlibs() {
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ctx.AddVariationDependencies([]blueprint.Variation{{Mutator: "rust_libraries", Variation: "rlib"}}, rlibDepTag, ProfilerBuiltins)
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}
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}
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return deps
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}
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func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags, PathDeps) {
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if !ctx.DeviceConfig().NativeCoverageEnabled() {
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return flags, deps
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}
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if cov.Properties.CoverageEnabled {
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flags.Coverage = true
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coverage := ctx.GetDirectDepWithTag(CovLibraryName, cc.CoverageDepTag).(cc.LinkableInterface)
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flags.RustFlags = append(flags.RustFlags,
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"-C instrument-coverage", "-g")
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flags.LinkFlags = append(flags.LinkFlags,
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profileInstrFlag, "-g", coverage.OutputFile().Path().String(), "-Wl,--wrap,open")
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deps.StaticLibs = append(deps.StaticLibs, coverage.OutputFile().Path())
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// no_std modules are missing libprofiler_builtins which provides coverage, so we need to add it as a dependency.
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if rustModule, ok := ctx.Module().(*Module); ok && rustModule.compiler.noStdlibs() {
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profiler_builtins := ctx.GetDirectDepWithTag(ProfilerBuiltins, rlibDepTag).(*Module)
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deps.RLibs = append(deps.RLibs, RustLibrary{Path: profiler_builtins.OutputFile().Path(), CrateName: profiler_builtins.CrateName()})
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}
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if cc.EnableContinuousCoverage(ctx) {
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flags.RustFlags = append(flags.RustFlags, "-C llvm-args=--runtime-counter-relocation")
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flags.LinkFlags = append(flags.LinkFlags, "-Wl,-mllvm,-runtime-counter-relocation")
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}
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}
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return flags, deps
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}
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func (cov *coverage) begin(ctx BaseModuleContext) {
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if ctx.Host() {
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// Host coverage not yet supported.
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} else {
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// Update useSdk and sdkVersion args if Rust modules become SDK aware.
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cov.Properties = cc.SetCoverageProperties(ctx, cov.Properties, ctx.RustModule().nativeCoverage(), false, "")
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}
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}
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