a4aa43072b
Test: go test cc tests Test: generate bp2build, sync bp2build, bazel build //bionic/... Bug: 181794963 Change-Id: I8dcef585e3025ef6f44d22430ed67b1e0429dca0
275 lines
8 KiB
Go
275 lines
8 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"
|
|
"android/soong/bazel"
|
|
)
|
|
|
|
//
|
|
// Objects (for crt*.o)
|
|
//
|
|
|
|
func init() {
|
|
android.RegisterModuleType("cc_object", ObjectFactory)
|
|
android.RegisterSdkMemberType(ccObjectSdkMemberType)
|
|
|
|
android.RegisterBp2BuildMutator("cc_object", ObjectBp2Build)
|
|
}
|
|
|
|
var ccObjectSdkMemberType = &librarySdkMemberType{
|
|
SdkMemberTypeBase: android.SdkMemberTypeBase{
|
|
PropertyName: "native_objects",
|
|
SupportsSdk: true,
|
|
},
|
|
prebuiltModuleType: "cc_prebuilt_object",
|
|
linkTypes: nil,
|
|
}
|
|
|
|
type objectLinker struct {
|
|
*baseLinker
|
|
Properties ObjectLinkerProperties
|
|
}
|
|
|
|
type objectBazelHandler struct {
|
|
bazelHandler
|
|
|
|
module *Module
|
|
}
|
|
|
|
func (handler *objectBazelHandler) generateBazelBuildActions(ctx android.ModuleContext, label string) bool {
|
|
// TODO(b/181794963): restore mixed builds once cc_object incompatibility resolved
|
|
return false
|
|
}
|
|
|
|
type ObjectLinkerProperties struct {
|
|
// list of modules that should only provide headers for this module.
|
|
Header_libs []string `android:"arch_variant,variant_prepend"`
|
|
|
|
// names of other cc_object modules to link into this module using partial linking
|
|
Objs []string `android:"arch_variant"`
|
|
|
|
// if set, add an extra objcopy --prefix-symbols= step
|
|
Prefix_symbols *string
|
|
|
|
// if set, the path to a linker script to pass to ld -r when combining multiple object files.
|
|
Linker_script *string `android:"path,arch_variant"`
|
|
|
|
// Indicates that this module is a CRT object. CRT objects will be split
|
|
// into a variant per-API level between min_sdk_version and current.
|
|
Crt *bool
|
|
}
|
|
|
|
func newObject() *Module {
|
|
module := newBaseModule(android.HostAndDeviceSupported, android.MultilibBoth)
|
|
module.sanitize = &sanitize{}
|
|
module.stl = &stl{}
|
|
return module
|
|
}
|
|
|
|
// 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 := newObject()
|
|
module.linker = &objectLinker{
|
|
baseLinker: NewBaseLinker(module.sanitize),
|
|
}
|
|
module.compiler = NewBaseCompiler()
|
|
module.bazelHandler = &objectBazelHandler{module: module}
|
|
|
|
// Clang's address-significance tables are incompatible with ld -r.
|
|
module.compiler.appendCflags([]string{"-fno-addrsig"})
|
|
|
|
module.sdkMemberTypes = []android.SdkMemberType{ccObjectSdkMemberType}
|
|
|
|
return module.Init()
|
|
}
|
|
|
|
// For bp2build conversion.
|
|
type bazelObjectAttributes struct {
|
|
Srcs bazel.LabelList
|
|
Deps bazel.LabelList
|
|
Copts bazel.StringListAttribute
|
|
Local_include_dirs []string
|
|
}
|
|
|
|
type bazelObject struct {
|
|
android.BazelTargetModuleBase
|
|
bazelObjectAttributes
|
|
}
|
|
|
|
func (m *bazelObject) Name() string {
|
|
return m.BaseModuleName()
|
|
}
|
|
|
|
func (m *bazelObject) GenerateAndroidBuildActions(ctx android.ModuleContext) {}
|
|
|
|
func BazelObjectFactory() android.Module {
|
|
module := &bazelObject{}
|
|
module.AddProperties(&module.bazelObjectAttributes)
|
|
android.InitBazelTargetModule(module)
|
|
return module
|
|
}
|
|
|
|
// ObjectBp2Build is the bp2build converter from cc_object modules to the
|
|
// Bazel equivalent target, plus any necessary include deps for the cc_object.
|
|
func ObjectBp2Build(ctx android.TopDownMutatorContext) {
|
|
m, ok := ctx.Module().(*Module)
|
|
if !ok || !m.ConvertWithBp2build() {
|
|
return
|
|
}
|
|
|
|
// a Module can be something other than a cc_object.
|
|
if ctx.ModuleType() != "cc_object" {
|
|
return
|
|
}
|
|
|
|
if m.compiler == nil {
|
|
// a cc_object must have access to the compiler decorator for its props.
|
|
ctx.ModuleErrorf("compiler must not be nil for a cc_object module")
|
|
}
|
|
|
|
// Set arch-specific configurable attributes
|
|
var copts bazel.StringListAttribute
|
|
var srcs []string
|
|
var excludeSrcs []string
|
|
var localIncludeDirs []string
|
|
for _, props := range m.compiler.compilerProps() {
|
|
if baseCompilerProps, ok := props.(*BaseCompilerProperties); ok {
|
|
copts.Value = baseCompilerProps.Cflags
|
|
srcs = baseCompilerProps.Srcs
|
|
excludeSrcs = baseCompilerProps.Exclude_srcs
|
|
localIncludeDirs = baseCompilerProps.Local_include_dirs
|
|
break
|
|
}
|
|
}
|
|
|
|
if c, ok := m.compiler.(*baseCompiler); ok && c.includeBuildDirectory() {
|
|
localIncludeDirs = append(localIncludeDirs, ".")
|
|
}
|
|
|
|
var deps bazel.LabelList
|
|
for _, props := range m.linker.linkerProps() {
|
|
if objectLinkerProps, ok := props.(*ObjectLinkerProperties); ok {
|
|
deps = android.BazelLabelForModuleDeps(ctx, objectLinkerProps.Objs)
|
|
}
|
|
}
|
|
|
|
for arch, p := range m.GetArchProperties(&BaseCompilerProperties{}) {
|
|
if cProps, ok := p.(*BaseCompilerProperties); ok {
|
|
copts.SetValueForArch(arch.Name, cProps.Cflags)
|
|
}
|
|
}
|
|
copts.SetValueForArch("default", []string{})
|
|
|
|
attrs := &bazelObjectAttributes{
|
|
Srcs: android.BazelLabelForModuleSrcExcludes(ctx, srcs, excludeSrcs),
|
|
Deps: deps,
|
|
Copts: copts,
|
|
Local_include_dirs: localIncludeDirs,
|
|
}
|
|
|
|
props := bazel.BazelTargetModuleProperties{
|
|
Rule_class: "cc_object",
|
|
Bzl_load_location: "//build/bazel/rules:cc_object.bzl",
|
|
}
|
|
|
|
ctx.CreateBazelTargetModule(BazelObjectFactory, m.Name(), props, attrs)
|
|
}
|
|
|
|
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 {
|
|
deps.HeaderLibs = append(deps.HeaderLibs, object.Properties.Header_libs...)
|
|
deps.ObjFiles = append(deps.ObjFiles, object.Properties.Objs...)
|
|
return deps
|
|
}
|
|
|
|
func (object *objectLinker) linkerFlags(ctx ModuleContext, flags Flags) Flags {
|
|
flags.Global.LdFlags = append(flags.Global.LdFlags, ctx.toolchain().ToolchainClangLdflags())
|
|
|
|
if lds := android.OptionalPathForModuleSrc(ctx, object.Properties.Linker_script); lds.Valid() {
|
|
flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,-T,"+lds.String())
|
|
flags.LdFlagsDeps = append(flags.LdFlagsDeps, lds.Path())
|
|
}
|
|
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 && String(object.Properties.Linker_script) == "" {
|
|
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, flags.LdFlagsDeps)
|
|
}
|
|
|
|
ctx.CheckbuildFile(outputFile)
|
|
return outputFile
|
|
}
|
|
|
|
func (object *objectLinker) unstrippedOutputFilePath() android.Path {
|
|
return nil
|
|
}
|
|
|
|
func (object *objectLinker) nativeCoverage() bool {
|
|
return true
|
|
}
|
|
|
|
func (object *objectLinker) coverageOutputFilePath() android.OptionalPath {
|
|
return android.OptionalPath{}
|
|
}
|
|
|
|
func (object *objectLinker) object() bool {
|
|
return true
|
|
}
|
|
|
|
func (object *objectLinker) isCrt() bool {
|
|
return Bool(object.Properties.Crt)
|
|
}
|