platform_build_soong/cc/object.go
Pirama Arumuga Nainar 65c95ff1fb Include libprofile-extras to all coverage variants
Bug: http://b/128524141

Include libprofile-extras (defined in system/extras/toolchain-extras) to
all modules that need a coverage variant.  Also add
'-uinit_profile_extras' when linking with coverage.  This causes the
setup code in libprofile-extras to be linked into binaries/libraries
with coverage enabled.

We add the static library to the non-coverage variants as well but is a
no-op for them (since the '-u...' flag is not added for them).

Adding this dependency creates several circular dependencies since
coverage variants were being created for other module types that never
had any compilation or linking done during the build.  This change stops
creating coverage variants for toolchain_library, cc_prebuilt_library_*,
cc_library_headers module types (by adding a function to the linker
interface to specify whether native coverage is enabled).

Test: m NATIVE_COVERAGE=true COVERAGE_PATHS=*
Test: blueline_coverage target in internal branch (using forrest)
Change-Id: I5db876eb953639a55ba007248dd24e497f987730
2019-03-29 08:56:42 -07:00

120 lines
3.4 KiB
Go

// Copyright 2016 Google Inc. All rights reserved.
//
// 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 cc
import (
"fmt"
"android/soong/android"
)
//
// Objects (for crt*.o)
//
func init() {
android.RegisterModuleType("cc_object", ObjectFactory)
}
type objectLinker struct {
*baseLinker
Properties ObjectLinkerProperties
}
// cc_object runs the compiler without running the linker. It is rarely
// necessary, but sometimes used to generate .s files from .c files to use as
// input to a cc_genrule module.
func ObjectFactory() android.Module {
module := newBaseModule(android.HostAndDeviceSupported, android.MultilibBoth)
module.linker = &objectLinker{
baseLinker: NewBaseLinker(nil),
}
module.compiler = NewBaseCompiler()
// Clang's address-significance tables are incompatible with ld -r.
module.compiler.appendCflags([]string{"-fno-addrsig"})
module.stl = &stl{}
return module.Init()
}
func (object *objectLinker) appendLdflags(flags []string) {
panic(fmt.Errorf("appendLdflags on objectLinker not supported"))
}
func (object *objectLinker) linkerProps() []interface{} {
return []interface{}{&object.Properties}
}
func (*objectLinker) linkerInit(ctx BaseModuleContext) {}
func (object *objectLinker) linkerDeps(ctx DepsContext, deps Deps) Deps {
if ctx.useVndk() && ctx.toolchain().Bionic() {
// Needed for VNDK builds where bionic headers aren't automatically added.
deps.LateSharedLibs = append(deps.LateSharedLibs, "libc")
}
deps.ObjFiles = append(deps.ObjFiles, object.Properties.Objs...)
return deps
}
func (*objectLinker) linkerFlags(ctx ModuleContext, flags Flags) Flags {
flags.LdFlags = append(flags.LdFlags, ctx.toolchain().ToolchainClangLdflags())
return flags
}
func (object *objectLinker) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
objs = objs.Append(deps.Objs)
var outputFile android.Path
builderFlags := flagsToBuilderFlags(flags)
if len(objs.objFiles) == 1 {
outputFile = objs.objFiles[0]
if String(object.Properties.Prefix_symbols) != "" {
output := android.PathForModuleOut(ctx, ctx.ModuleName()+objectExtension)
TransformBinaryPrefixSymbols(ctx, String(object.Properties.Prefix_symbols), outputFile,
builderFlags, output)
outputFile = output
}
} else {
output := android.PathForModuleOut(ctx, ctx.ModuleName()+objectExtension)
outputFile = output
if String(object.Properties.Prefix_symbols) != "" {
input := android.PathForModuleOut(ctx, "unprefixed", ctx.ModuleName()+objectExtension)
TransformBinaryPrefixSymbols(ctx, String(object.Properties.Prefix_symbols), input,
builderFlags, output)
output = input
}
TransformObjsToObj(ctx, objs.objFiles, builderFlags, output)
}
ctx.CheckbuildFile(outputFile)
return outputFile
}
func (object *objectLinker) unstrippedOutputFilePath() android.Path {
return nil
}
func (object *objectLinker) nativeCoverage() bool {
return true
}