platform_build_soong/rust/coverage.go
Thiébaud Weksteen 1f7f70fe39 Remove moduleContextImpl struct
The moduleContextImpl structure contains duplicate information on the
contexts. BaseModuleContext, ModuleContext and DepsContext can already
surface which Module is being processed via Module(). Because most of
the Rust-specific methods on the *Context structures simply forward to
the Module methods, expose a RustModule() method.

Test: cd external/rust/crates; mma
Change-Id: Ifee90825d54081fc5e9a8df0b7c4580412e9158c
2020-06-24 11:56:33 +02:00

72 lines
2.2 KiB
Go

// 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", "-Z no-landing-pads")
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, "")
}
}