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// 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-extras"
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)
}
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,
"-Z profile", "-g", "-C opt-level=0", "-C link-dead-code")
flags.LinkFlags = append(flags.LinkFlags,
"--coverage", "-g", coverage.OutputFile().Path().String(), "-Wl,--wrap,getenv")
deps.StaticLibs = append(deps.StaticLibs, coverage.OutputFile().Path())
}
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, "")
}
}
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