platform_build_soong/cc/prebuilt.go
Yu Liu e43124023c Support DCLA
Bug: 240424572
Test: Manual tests:
1. m --dev-mode-staging com.android.adbd com.android.media.swcodec.
2. verify the DCLA libs from the two apexes have the same size and
   sha1sum, and also match the libs in bazel-out.
3. empty the DCLA libs list in allowlist.go and repeat step 1
4. repeat step 2 and verify the opposite result
5. build git_master: mainline_modules_bundles-userdebug in ABTD
   with the cl, then follow go/build-sideload-dcla-locally to
   download the adbd and swcodec aab files, run the DCLA trimming
   workflow locally, and verify the symlinks in the two trimmed
   apexes are identical and also match the lib path in the DCLA
   apex that was created by the workflow.

Change-Id: Ib2f8a29126a54829c0e10eba17b256a79930fd70
2023-02-21 10:12:47 -08:00

831 lines
27 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 (
"path/filepath"
"strings"
"android/soong/android"
"android/soong/bazel"
"android/soong/bazel/cquery"
)
func init() {
RegisterPrebuiltBuildComponents(android.InitRegistrationContext)
}
func RegisterPrebuiltBuildComponents(ctx android.RegistrationContext) {
ctx.RegisterModuleType("cc_prebuilt_library", PrebuiltLibraryFactory)
ctx.RegisterModuleType("cc_prebuilt_library_shared", PrebuiltSharedLibraryFactory)
ctx.RegisterModuleType("cc_prebuilt_library_static", PrebuiltStaticLibraryFactory)
ctx.RegisterModuleType("cc_prebuilt_test_library_shared", PrebuiltSharedTestLibraryFactory)
ctx.RegisterModuleType("cc_prebuilt_object", PrebuiltObjectFactory)
ctx.RegisterModuleType("cc_prebuilt_binary", PrebuiltBinaryFactory)
}
type prebuiltLinkerInterface interface {
Name(string) string
prebuilt() *android.Prebuilt
}
type prebuiltLinkerProperties struct {
// a prebuilt library or binary. Can reference a genrule module that generates an executable file.
Srcs []string `android:"path,arch_variant"`
Sanitized Sanitized `android:"arch_variant"`
// Check the prebuilt ELF files (e.g. DT_SONAME, DT_NEEDED, resolution of undefined
// symbols, etc), default true.
Check_elf_files *bool
// if set, add an extra objcopy --prefix-symbols= step
Prefix_symbols *string
// Optionally provide an import library if this is a Windows PE DLL prebuilt.
// This is needed only if this library is linked by other modules in build time.
// Only makes sense for the Windows target.
Windows_import_lib *string `android:"path,arch_variant"`
// MixedBuildsDisabled is true if and only if building this prebuilt is explicitly disabled in mixed builds for either
// its static or shared version on the current build variant. This is to prevent Bazel targets for build variants with
// which either the static or shared version is incompatible from participating in mixed buiods. Please note that this
// is an override and does not fully determine whether Bazel or Soong will be used. For the full determination, see
// cc.ProcessBazelQueryResponse, cc.QueueBazelCall, and cc.MixedBuildsDisabled.
MixedBuildsDisabled bool `blueprint:"mutated"`
}
type prebuiltLinker struct {
android.Prebuilt
properties prebuiltLinkerProperties
}
func (p *prebuiltLinker) prebuilt() *android.Prebuilt {
return &p.Prebuilt
}
func (p *prebuiltLinker) PrebuiltSrcs() []string {
return p.properties.Srcs
}
type prebuiltLibraryInterface interface {
libraryInterface
prebuiltLinkerInterface
disablePrebuilt()
}
type prebuiltLibraryLinker struct {
*libraryDecorator
prebuiltLinker
}
var _ prebuiltLinkerInterface = (*prebuiltLibraryLinker)(nil)
var _ prebuiltLibraryInterface = (*prebuiltLibraryLinker)(nil)
func (p *prebuiltLibraryLinker) linkerInit(ctx BaseModuleContext) {}
func (p *prebuiltLibraryLinker) linkerDeps(ctx DepsContext, deps Deps) Deps {
return p.libraryDecorator.linkerDeps(ctx, deps)
}
func (p *prebuiltLibraryLinker) linkerFlags(ctx ModuleContext, flags Flags) Flags {
return flags
}
func (p *prebuiltLibraryLinker) linkerProps() []interface{} {
return p.libraryDecorator.linkerProps()
}
func (p *prebuiltLibraryLinker) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
p.libraryDecorator.flagExporter.exportIncludes(ctx)
p.libraryDecorator.flagExporter.reexportDirs(deps.ReexportedDirs...)
p.libraryDecorator.flagExporter.reexportSystemDirs(deps.ReexportedSystemDirs...)
p.libraryDecorator.flagExporter.reexportFlags(deps.ReexportedFlags...)
p.libraryDecorator.flagExporter.reexportDeps(deps.ReexportedDeps...)
p.libraryDecorator.flagExporter.addExportedGeneratedHeaders(deps.ReexportedGeneratedHeaders...)
p.libraryDecorator.flagExporter.setProvider(ctx)
// TODO(ccross): verify shared library dependencies
srcs := p.prebuiltSrcs(ctx)
if len(srcs) > 0 {
if len(srcs) > 1 {
ctx.PropertyErrorf("srcs", "multiple prebuilt source files")
return nil
}
p.libraryDecorator.exportVersioningMacroIfNeeded(ctx)
in := android.PathForModuleSrc(ctx, srcs[0])
if String(p.prebuiltLinker.properties.Prefix_symbols) != "" {
prefixed := android.PathForModuleOut(ctx, "prefixed", srcs[0])
transformBinaryPrefixSymbols(ctx, String(p.prebuiltLinker.properties.Prefix_symbols),
in, flagsToBuilderFlags(flags), prefixed)
in = prefixed
}
if p.static() {
depSet := android.NewDepSetBuilder(android.TOPOLOGICAL).Direct(in).Build()
ctx.SetProvider(StaticLibraryInfoProvider, StaticLibraryInfo{
StaticLibrary: in,
TransitiveStaticLibrariesForOrdering: depSet,
})
return in
}
if p.shared() {
p.unstrippedOutputFile = in
libName := p.libraryDecorator.getLibName(ctx) + flags.Toolchain.ShlibSuffix()
outputFile := android.PathForModuleOut(ctx, libName)
var implicits android.Paths
if p.stripper.NeedsStrip(ctx) {
stripFlags := flagsToStripFlags(flags)
stripped := android.PathForModuleOut(ctx, "stripped", libName)
p.stripper.StripExecutableOrSharedLib(ctx, in, stripped, stripFlags)
in = stripped
}
// Optimize out relinking against shared libraries whose interface hasn't changed by
// depending on a table of contents file instead of the library itself.
tocFile := android.PathForModuleOut(ctx, libName+".toc")
p.tocFile = android.OptionalPathForPath(tocFile)
TransformSharedObjectToToc(ctx, outputFile, tocFile)
if ctx.Windows() && p.properties.Windows_import_lib != nil {
// Consumers of this library actually links to the import library in build
// time and dynamically links to the DLL in run time. i.e.
// a.exe <-- static link --> foo.lib <-- dynamic link --> foo.dll
importLibSrc := android.PathForModuleSrc(ctx, String(p.properties.Windows_import_lib))
importLibName := p.libraryDecorator.getLibName(ctx) + ".lib"
importLibOutputFile := android.PathForModuleOut(ctx, importLibName)
implicits = append(implicits, importLibOutputFile)
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Description: "prebuilt import library",
Input: importLibSrc,
Output: importLibOutputFile,
Args: map[string]string{
"cpFlags": "-L",
},
})
}
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Description: "prebuilt shared library",
Implicits: implicits,
Input: in,
Output: outputFile,
Args: map[string]string{
"cpFlags": "-L",
},
})
ctx.SetProvider(SharedLibraryInfoProvider, SharedLibraryInfo{
SharedLibrary: outputFile,
Target: ctx.Target(),
TableOfContents: p.tocFile,
})
// TODO(b/220898484): Mainline module sdk prebuilts of stub libraries use a stub
// library as their source and must not be installed, but libclang_rt.* libraries
// have stubs because they are LLNDK libraries, but use an implementation library
// as their source and need to be installed. This discrepancy should be resolved
// without the prefix hack below.
if p.hasStubsVariants() && !p.buildStubs() && !ctx.Host() &&
!strings.HasPrefix(ctx.baseModuleName(), "libclang_rt.") {
ctx.Module().MakeUninstallable()
}
return outputFile
}
}
if p.header() {
ctx.SetProvider(HeaderLibraryInfoProvider, HeaderLibraryInfo{})
// Need to return an output path so that the AndroidMk logic doesn't skip
// the prebuilt header. For compatibility, in case Android.mk files use a
// header lib in LOCAL_STATIC_LIBRARIES, create an empty ar file as
// placeholder, just like non-prebuilt header modules do in linkStatic().
ph := android.PathForModuleOut(ctx, ctx.ModuleName()+staticLibraryExtension)
transformObjToStaticLib(ctx, nil, nil, builderFlags{}, ph, nil, nil)
return ph
}
return nil
}
func (p *prebuiltLibraryLinker) prebuiltSrcs(ctx android.BaseModuleContext) []string {
sanitize := ctx.Module().(*Module).sanitize
srcs := p.properties.Srcs
srcs = append(srcs, srcsForSanitizer(sanitize, p.properties.Sanitized)...)
if p.static() {
srcs = append(srcs, p.libraryDecorator.StaticProperties.Static.Srcs...)
srcs = append(srcs, srcsForSanitizer(sanitize, p.libraryDecorator.StaticProperties.Static.Sanitized)...)
}
if p.shared() {
srcs = append(srcs, p.libraryDecorator.SharedProperties.Shared.Srcs...)
srcs = append(srcs, srcsForSanitizer(sanitize, p.libraryDecorator.SharedProperties.Shared.Sanitized)...)
}
return srcs
}
func (p *prebuiltLibraryLinker) shared() bool {
return p.libraryDecorator.shared()
}
func (p *prebuiltLibraryLinker) nativeCoverage() bool {
return false
}
func (p *prebuiltLibraryLinker) disablePrebuilt() {
p.properties.Srcs = nil
p.properties.MixedBuildsDisabled = true
}
// Implements versionedInterface
func (p *prebuiltLibraryLinker) implementationModuleName(name string) string {
return android.RemoveOptionalPrebuiltPrefix(name)
}
func NewPrebuiltLibrary(hod android.HostOrDeviceSupported, srcsProperty string) (*Module, *libraryDecorator) {
module, library := NewLibrary(hod)
module.compiler = nil
module.bazelable = true
module.bazelHandler = &prebuiltLibraryBazelHandler{module: module, library: library}
prebuilt := &prebuiltLibraryLinker{
libraryDecorator: library,
}
module.linker = prebuilt
module.library = prebuilt
module.AddProperties(&prebuilt.properties)
if srcsProperty == "" {
android.InitPrebuiltModuleWithoutSrcs(module)
} else {
srcsSupplier := func(ctx android.BaseModuleContext, _ android.Module) []string {
return prebuilt.prebuiltSrcs(ctx)
}
android.InitPrebuiltModuleWithSrcSupplier(module, srcsSupplier, srcsProperty)
}
return module, library
}
// cc_prebuilt_library installs a precompiled shared library that are
// listed in the srcs property in the device's directory.
func PrebuiltLibraryFactory() android.Module {
module, _ := NewPrebuiltLibrary(android.HostAndDeviceSupported, "srcs")
// Prebuilt shared libraries can be included in APEXes
android.InitApexModule(module)
return module.Init()
}
// cc_prebuilt_library_shared installs a precompiled shared library that are
// listed in the srcs property in the device's directory.
func PrebuiltSharedLibraryFactory() android.Module {
module, _ := NewPrebuiltSharedLibrary(android.HostAndDeviceSupported)
return module.Init()
}
// cc_prebuilt_test_library_shared installs a precompiled shared library
// to be used as a data dependency of a test-related module (such as cc_test, or
// cc_test_library).
func PrebuiltSharedTestLibraryFactory() android.Module {
module, library := NewPrebuiltLibrary(android.HostAndDeviceSupported, "srcs")
library.BuildOnlyShared()
library.baseInstaller = NewTestInstaller()
return module.Init()
}
func NewPrebuiltSharedLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) {
module, library := NewPrebuiltLibrary(hod, "srcs")
library.BuildOnlyShared()
// Prebuilt shared libraries can be included in APEXes
android.InitApexModule(module)
return module, library
}
// cc_prebuilt_library_static installs a precompiled static library that are
// listed in the srcs property in the device's directory.
func PrebuiltStaticLibraryFactory() android.Module {
module, _ := NewPrebuiltStaticLibrary(android.HostAndDeviceSupported)
return module.Init()
}
func NewPrebuiltStaticLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) {
module, library := NewPrebuiltLibrary(hod, "srcs")
library.BuildOnlyStatic()
return module, library
}
type bazelPrebuiltLibraryStaticAttributes struct {
Static_library bazel.LabelAttribute
Export_includes bazel.StringListAttribute
Export_system_includes bazel.StringListAttribute
}
// TODO(b/228623543): The below is not entirely true until the bug is fixed. For now, both targets are always generated
// Implements bp2build for cc_prebuilt_library modules. This will generate:
// - Only a cc_prebuilt_library_static if the shared.enabled property is set to false across all variants.
// - Only a cc_prebuilt_library_shared if the static.enabled property is set to false across all variants
// - Both a cc_prebuilt_library_static and cc_prebuilt_library_shared if the aforementioned properties are not false across
// all variants
//
// In all cases, cc_prebuilt_library_static target names will be appended with "_bp2build_cc_library_static".
func prebuiltLibraryBp2Build(ctx android.TopDownMutatorContext, module *Module) {
prebuiltLibraryStaticBp2Build(ctx, module, true)
prebuiltLibrarySharedBp2Build(ctx, module)
}
func prebuiltLibraryStaticBp2Build(ctx android.TopDownMutatorContext, module *Module, fullBuild bool) {
prebuiltAttrs := Bp2BuildParsePrebuiltLibraryProps(ctx, module, true)
exportedIncludes := bp2BuildParseExportedIncludes(ctx, module, nil)
attrs := &bazelPrebuiltLibraryStaticAttributes{
Static_library: prebuiltAttrs.Src,
Export_includes: exportedIncludes.Includes,
Export_system_includes: exportedIncludes.SystemIncludes,
}
props := bazel.BazelTargetModuleProperties{
Rule_class: "cc_prebuilt_library_static",
Bzl_load_location: "//build/bazel/rules/cc:cc_prebuilt_library_static.bzl",
}
name := android.RemoveOptionalPrebuiltPrefix(module.Name())
if fullBuild {
name += "_bp2build_cc_library_static"
}
tags := android.ApexAvailableTags(module)
ctx.CreateBazelTargetModuleWithRestrictions(props, android.CommonAttributes{Name: name, Tags: tags}, attrs, prebuiltAttrs.Enabled)
}
type bazelPrebuiltLibrarySharedAttributes struct {
Shared_library bazel.LabelAttribute
}
func prebuiltLibrarySharedBp2Build(ctx android.TopDownMutatorContext, module *Module) {
prebuiltAttrs := Bp2BuildParsePrebuiltLibraryProps(ctx, module, false)
attrs := &bazelPrebuiltLibrarySharedAttributes{
Shared_library: prebuiltAttrs.Src,
}
props := bazel.BazelTargetModuleProperties{
Rule_class: "cc_prebuilt_library_shared",
Bzl_load_location: "//build/bazel/rules/cc:cc_prebuilt_library_shared.bzl",
}
name := android.RemoveOptionalPrebuiltPrefix(module.Name())
tags := android.ApexAvailableTags(module)
ctx.CreateBazelTargetModuleWithRestrictions(props, android.CommonAttributes{Name: name, Tags: tags}, attrs, prebuiltAttrs.Enabled)
}
type prebuiltObjectProperties struct {
Srcs []string `android:"path,arch_variant"`
}
type prebuiltObjectLinker struct {
android.Prebuilt
objectLinker
properties prebuiltObjectProperties
}
type prebuiltLibraryBazelHandler struct {
module *Module
library *libraryDecorator
}
var _ BazelHandler = (*prebuiltLibraryBazelHandler)(nil)
func (h *prebuiltLibraryBazelHandler) QueueBazelCall(ctx android.BaseModuleContext, label string) {
if h.module.linker.(*prebuiltLibraryLinker).properties.MixedBuildsDisabled {
return
}
bazelCtx := ctx.Config().BazelContext
bazelCtx.QueueBazelRequest(label, cquery.GetCcInfo, android.GetConfigKey(ctx))
}
func (h *prebuiltLibraryBazelHandler) ProcessBazelQueryResponse(ctx android.ModuleContext, label string) {
if h.module.linker.(*prebuiltLibraryLinker).properties.MixedBuildsDisabled {
return
}
bazelCtx := ctx.Config().BazelContext
ccInfo, err := bazelCtx.GetCcInfo(label, android.GetConfigKey(ctx))
if err != nil {
ctx.ModuleErrorf(err.Error())
return
}
if h.module.static() {
if ok := h.processStaticBazelQueryResponse(ctx, label, ccInfo); !ok {
return
}
} else if h.module.Shared() {
if ok := h.processSharedBazelQueryResponse(ctx, label, ccInfo); !ok {
return
}
} else {
return
}
h.module.maybeUnhideFromMake()
h.module.setAndroidMkVariablesFromCquery(ccInfo.CcAndroidMkInfo)
}
func (h *prebuiltLibraryBazelHandler) processStaticBazelQueryResponse(ctx android.ModuleContext, label string, ccInfo cquery.CcInfo) bool {
staticLibs := ccInfo.CcStaticLibraryFiles
if len(staticLibs) > 1 {
ctx.ModuleErrorf("expected 1 static library from bazel target %q, got %s", label, staticLibs)
return false
}
// TODO(b/184543518): cc_prebuilt_library_static may have properties for re-exporting flags
// TODO(eakammer):Add stub-related flags if this library is a stub library.
// h.library.exportVersioningMacroIfNeeded(ctx)
// Dependencies on this library will expect collectedSnapshotHeaders to be set, otherwise
// validation will fail. For now, set this to an empty list.
// TODO(cparsons): More closely mirror the collectHeadersForSnapshot implementation.
h.library.collectedSnapshotHeaders = android.Paths{}
if len(staticLibs) == 0 {
h.module.outputFile = android.OptionalPath{}
return true
}
var outputPath android.Path = android.PathForBazelOut(ctx, staticLibs[0])
if len(ccInfo.TidyFiles) > 0 {
h.module.tidyFiles = android.PathsForBazelOut(ctx, ccInfo.TidyFiles)
outputPath = android.AttachValidationActions(ctx, outputPath, h.module.tidyFiles)
}
h.module.outputFile = android.OptionalPathForPath(outputPath)
depSet := android.NewDepSetBuilder(android.TOPOLOGICAL).Direct(outputPath).Build()
ctx.SetProvider(StaticLibraryInfoProvider, StaticLibraryInfo{
StaticLibrary: outputPath,
TransitiveStaticLibrariesForOrdering: depSet,
})
return true
}
func (h *prebuiltLibraryBazelHandler) processSharedBazelQueryResponse(ctx android.ModuleContext, label string, ccInfo cquery.CcInfo) bool {
sharedLibs := ccInfo.CcSharedLibraryFiles
if len(sharedLibs) > 1 {
ctx.ModuleErrorf("expected 1 shared library from bazel target %s, got %q", label, sharedLibs)
return false
}
// TODO(b/184543518): cc_prebuilt_library_shared may have properties for re-exporting flags
// TODO(eakammer):Add stub-related flags if this library is a stub library.
// h.library.exportVersioningMacroIfNeeded(ctx)
if len(sharedLibs) == 0 {
h.module.outputFile = android.OptionalPath{}
return true
}
var outputPath android.Path = android.PathForBazelOut(ctx, sharedLibs[0])
if len(ccInfo.TidyFiles) > 0 {
h.module.tidyFiles = android.PathsForBazelOut(ctx, ccInfo.TidyFiles)
outputPath = android.AttachValidationActions(ctx, outputPath, h.module.tidyFiles)
}
h.module.outputFile = android.OptionalPathForPath(outputPath)
// FIXME(b/214600441): We don't yet strip prebuilt shared libraries
h.library.unstrippedOutputFile = outputPath
var toc android.Path
if len(ccInfo.TocFile) > 0 {
toc = android.PathForBazelOut(ctx, ccInfo.TocFile)
} else {
toc = outputPath // Just reuse `out` so ninja still gets an input but won't matter
}
info := SharedLibraryInfo{
SharedLibrary: outputPath,
TableOfContents: android.OptionalPathForPath(toc),
Target: ctx.Target(),
}
ctx.SetProvider(SharedLibraryInfoProvider, info)
h.library.setFlagExporterInfoFromCcInfo(ctx, ccInfo)
h.module.maybeUnhideFromMake()
return true
}
func (p *prebuiltObjectLinker) prebuilt() *android.Prebuilt {
return &p.Prebuilt
}
var _ prebuiltLinkerInterface = (*prebuiltObjectLinker)(nil)
func (p *prebuiltObjectLinker) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
if len(p.properties.Srcs) > 0 {
// Copy objects to a name matching the final installed name
in := p.Prebuilt.SingleSourcePath(ctx)
outputFile := android.PathForModuleOut(ctx, ctx.ModuleName()+".o")
ctx.Build(pctx, android.BuildParams{
Rule: android.CpExecutable,
Description: "prebuilt",
Output: outputFile,
Input: in,
})
return outputFile
}
return nil
}
func (p *prebuiltObjectLinker) object() bool {
return true
}
func NewPrebuiltObject(hod android.HostOrDeviceSupported) *Module {
module := newObject(hod)
module.bazelHandler = &prebuiltObjectBazelHandler{module: module}
module.bazelable = true
prebuilt := &prebuiltObjectLinker{
objectLinker: objectLinker{
baseLinker: NewBaseLinker(nil),
},
}
module.linker = prebuilt
module.AddProperties(&prebuilt.properties)
android.InitPrebuiltModule(module, &prebuilt.properties.Srcs)
return module
}
type prebuiltObjectBazelHandler struct {
module *Module
}
var _ BazelHandler = (*prebuiltObjectBazelHandler)(nil)
func (h *prebuiltObjectBazelHandler) QueueBazelCall(ctx android.BaseModuleContext, label string) {
bazelCtx := ctx.Config().BazelContext
bazelCtx.QueueBazelRequest(label, cquery.GetOutputFiles, android.GetConfigKey(ctx))
}
func (h *prebuiltObjectBazelHandler) ProcessBazelQueryResponse(ctx android.ModuleContext, label string) {
bazelCtx := ctx.Config().BazelContext
outputs, err := bazelCtx.GetOutputFiles(label, android.GetConfigKey(ctx))
if err != nil {
ctx.ModuleErrorf(err.Error())
return
}
if len(outputs) != 1 {
ctx.ModuleErrorf("Expected a single output for `%s`, but got:\n%v", label, outputs)
return
}
out := android.PathForBazelOut(ctx, outputs[0])
h.module.outputFile = android.OptionalPathForPath(out)
h.module.maybeUnhideFromMake()
}
type bazelPrebuiltObjectAttributes struct {
Src bazel.LabelAttribute
}
func prebuiltObjectBp2Build(ctx android.TopDownMutatorContext, module *Module) {
prebuiltAttrs := bp2BuildParsePrebuiltObjectProps(ctx, module)
attrs := &bazelPrebuiltObjectAttributes{
Src: prebuiltAttrs.Src,
}
props := bazel.BazelTargetModuleProperties{
Rule_class: "cc_prebuilt_object",
Bzl_load_location: "//build/bazel/rules/cc:cc_prebuilt_object.bzl",
}
name := android.RemoveOptionalPrebuiltPrefix(module.Name())
tags := android.ApexAvailableTags(module)
ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: name, Tags: tags}, attrs)
}
func PrebuiltObjectFactory() android.Module {
module := NewPrebuiltObject(android.HostAndDeviceSupported)
return module.Init()
}
type prebuiltBinaryLinker struct {
*binaryDecorator
prebuiltLinker
toolPath android.OptionalPath
}
var _ prebuiltLinkerInterface = (*prebuiltBinaryLinker)(nil)
func (p *prebuiltBinaryLinker) hostToolPath() android.OptionalPath {
return p.toolPath
}
func (p *prebuiltBinaryLinker) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
// TODO(ccross): verify shared library dependencies
if len(p.properties.Srcs) > 0 {
fileName := p.getStem(ctx) + flags.Toolchain.ExecutableSuffix()
in := p.Prebuilt.SingleSourcePath(ctx)
outputFile := android.PathForModuleOut(ctx, fileName)
p.unstrippedOutputFile = in
if ctx.Host() {
// Host binaries are symlinked to their prebuilt source locations. That
// way they are executed directly from there so the linker resolves their
// shared library dependencies relative to that location (using
// $ORIGIN/../lib(64):$ORIGIN/lib(64) as RUNPATH). This way the prebuilt
// repository can supply the expected versions of the shared libraries
// without interference from what is in the out tree.
// These shared lib paths may point to copies of the libs in
// .intermediates, which isn't where the binary will load them from, but
// it's fine for dependency tracking. If a library dependency is updated,
// the symlink will get a new timestamp, along with any installed symlinks
// handled in make.
sharedLibPaths := deps.EarlySharedLibs
sharedLibPaths = append(sharedLibPaths, deps.SharedLibs...)
sharedLibPaths = append(sharedLibPaths, deps.LateSharedLibs...)
var fromPath = in.String()
if !filepath.IsAbs(fromPath) {
fromPath = "$$PWD/" + fromPath
}
ctx.Build(pctx, android.BuildParams{
Rule: android.Symlink,
Output: outputFile,
Input: in,
Implicits: sharedLibPaths,
Args: map[string]string{
"fromPath": fromPath,
},
})
p.toolPath = android.OptionalPathForPath(outputFile)
} else {
if p.stripper.NeedsStrip(ctx) {
stripped := android.PathForModuleOut(ctx, "stripped", fileName)
p.stripper.StripExecutableOrSharedLib(ctx, in, stripped, flagsToStripFlags(flags))
in = stripped
}
// Copy binaries to a name matching the final installed name
ctx.Build(pctx, android.BuildParams{
Rule: android.CpExecutable,
Description: "prebuilt",
Output: outputFile,
Input: in,
})
}
return outputFile
}
return nil
}
func (p *prebuiltBinaryLinker) binary() bool {
return true
}
// cc_prebuilt_binary installs a precompiled executable in srcs property in the
// device's directory, for both the host and device
func PrebuiltBinaryFactory() android.Module {
module, _ := NewPrebuiltBinary(android.HostAndDeviceSupported)
return module.Init()
}
type prebuiltBinaryBazelHandler struct {
module *Module
decorator *binaryDecorator
}
func NewPrebuiltBinary(hod android.HostOrDeviceSupported) (*Module, *binaryDecorator) {
module, binary := newBinary(hod, true)
module.compiler = nil
module.bazelHandler = &prebuiltBinaryBazelHandler{module, binary}
prebuilt := &prebuiltBinaryLinker{
binaryDecorator: binary,
}
module.linker = prebuilt
module.installer = prebuilt
module.AddProperties(&prebuilt.properties)
android.InitPrebuiltModule(module, &prebuilt.properties.Srcs)
return module, binary
}
var _ BazelHandler = (*prebuiltBinaryBazelHandler)(nil)
func (h *prebuiltBinaryBazelHandler) QueueBazelCall(ctx android.BaseModuleContext, label string) {
bazelCtx := ctx.Config().BazelContext
bazelCtx.QueueBazelRequest(label, cquery.GetOutputFiles, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
}
func (h *prebuiltBinaryBazelHandler) ProcessBazelQueryResponse(ctx android.ModuleContext, label string) {
bazelCtx := ctx.Config().BazelContext
outputs, err := bazelCtx.GetOutputFiles(label, android.GetConfigKeyApexVariant(ctx, GetApexConfigKey(ctx)))
if err != nil {
ctx.ModuleErrorf(err.Error())
return
}
if len(outputs) != 1 {
ctx.ModuleErrorf("Expected a single output for `%s`, but got:\n%v", label, outputs)
return
}
out := android.PathForBazelOut(ctx, outputs[0])
h.module.outputFile = android.OptionalPathForPath(out)
h.module.maybeUnhideFromMake()
}
type bazelPrebuiltBinaryAttributes struct {
Src bazel.LabelAttribute
Strip stripAttributes
}
func prebuiltBinaryBp2Build(ctx android.TopDownMutatorContext, module *Module) {
prebuiltAttrs := bp2BuildParsePrebuiltBinaryProps(ctx, module)
var la linkerAttributes
la.convertStripProps(ctx, module)
attrs := &bazelPrebuiltBinaryAttributes{
Src: prebuiltAttrs.Src,
Strip: stripAttrsFromLinkerAttrs(&la),
}
props := bazel.BazelTargetModuleProperties{
Rule_class: "cc_prebuilt_binary",
Bzl_load_location: "//build/bazel/rules/cc:cc_prebuilt_binary.bzl",
}
name := android.RemoveOptionalPrebuiltPrefix(module.Name())
tags := android.ApexAvailableTags(module)
ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: name, Tags: tags}, attrs)
}
type Sanitized struct {
None struct {
Srcs []string `android:"path,arch_variant"`
} `android:"arch_variant"`
Address struct {
Srcs []string `android:"path,arch_variant"`
} `android:"arch_variant"`
Hwaddress struct {
Srcs []string `android:"path,arch_variant"`
} `android:"arch_variant"`
}
func srcsForSanitizer(sanitize *sanitize, sanitized Sanitized) []string {
if sanitize == nil {
return nil
}
if sanitize.isSanitizerEnabled(Asan) && sanitized.Address.Srcs != nil {
return sanitized.Address.Srcs
}
if sanitize.isSanitizerEnabled(Hwasan) && sanitized.Hwaddress.Srcs != nil {
return sanitized.Hwaddress.Srcs
}
return sanitized.None.Srcs
}