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platform_build_soong
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Merge changes from topic "llndk_cc_library" 

* changes:
  Don't rewrite LLNDK dependencies with .llndk suffix
  Don't strip stub libraries
This commit is contained in:
Colin Cross 2020-12-22 18:55:34 +00:00 committed by Gerrit Code Review
parent 0a2afd183a 127bb8b9f6
commit 1f8c272984
15 changed files with 350 additions and 201 deletions
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1
android/makevars.go
View File

@ -90,6 +90,7 @@ type MakeVarsContext interface {
ModuleDir(module blueprint.Module) string
ModuleSubDir(module blueprint.Module) string
ModuleType(module blueprint.Module) string
ModuleProvider(module blueprint.Module, key blueprint.ProviderKey) interface{}
BlueprintFile(module blueprint.Module) string
ModuleErrorf(module blueprint.Module, format string, args ...interface{})

4
apex/apex_test.go
View File

@ -1355,9 +1355,9 @@ func TestApexDependsOnLLNDKTransitively(t *testing.T) {
ensureListContains(t, names(apexManifestRule.Args["requireNativeLibs"]), "libbar.so")
mylibLdFlags := ctx.ModuleForTests("mylib", "android_vendor.VER_arm64_armv8-a_shared_"+tc.apexVariant).Rule("ld").Args["libFlags"]
ensureContains(t, mylibLdFlags, "libbar.llndk/android_vendor.VER_arm64_armv8-a_shared_"+tc.shouldLink+"/libbar.so")
ensureContains(t, mylibLdFlags, "libbar/android_vendor.VER_arm64_armv8-a_shared_"+tc.shouldLink+"/libbar.so")
for _, ver := range tc.shouldNotLink {
ensureNotContains(t, mylibLdFlags, "libbar.llndk/android_vendor.VER_arm64_armv8-a_shared_"+ver+"/libbar.so")
ensureNotContains(t, mylibLdFlags, "libbar/android_vendor.VER_arm64_armv8-a_shared_"+ver+"/libbar.so")
}
mylibCFlags := ctx.ModuleForTests("mylib", "android_vendor.VER_arm64_armv8-a_static_"+tc.apexVariant).Rule("cc").Args["cFlags"]

17
cc/androidmk.go
View File

@ -269,7 +269,7 @@ func (library *libraryDecorator) AndroidMkEntries(ctx AndroidMkContext, entries
if library.shared() && !library.buildStubs() {
ctx.subAndroidMk(entries, library.baseInstaller)
} else {
if library.buildStubs() {
if library.buildStubs() && library.stubsVersion() != "" {
entries.SubName = "." + library.stubsVersion()
}
entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
@ -471,18 +471,9 @@ func (c *stubDecorator) AndroidMkEntries(ctx AndroidMkContext, entries *android.
}
func (c *llndkStubDecorator) AndroidMkEntries(ctx AndroidMkContext, entries *android.AndroidMkEntries) {
entries.Class = "SHARED_LIBRARIES"
entries.OverrideName = c.implementationModuleName(ctx.BaseModuleName())
entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
c.libraryDecorator.androidMkWriteExportedFlags(entries)
_, _, ext := android.SplitFileExt(entries.OutputFile.Path().Base())
entries.SetString("LOCAL_BUILT_MODULE_STEM", "$(LOCAL_MODULE)"+ext)
entries.SetBool("LOCAL_UNINSTALLABLE_MODULE", true)
entries.SetBool("LOCAL_NO_NOTICE_FILE", true)
entries.SetString("LOCAL_SOONG_TOC", c.toc().String())
})
// Don't write anything for an llndk_library module, the vendor variant of the cc_library
// module will write the Android.mk entries.
entries.Disabled = true
}
func (c *vndkPrebuiltLibraryDecorator) AndroidMkEntries(ctx AndroidMkContext, entries *android.AndroidMkEntries) {

94
cc/cc.go
View File

@ -390,6 +390,13 @@ type VendorProperties struct {
// explicitly marked as `double_loadable: true` by the owner, or the dependency
// from the LLNDK lib should be cut if the lib is not designed to be double loaded.
Double_loadable *bool
// IsLLNDK is set to true for the vendor variant of a cc_library module that has LLNDK stubs.
IsLLNDK bool `blueprint:"mutated"`
// IsLLNDKPrivate is set to true for the vendor variant of a cc_library module that has LLNDK
// stubs and also sets llndk.vendor_available: false.
IsLLNDKPrivate bool `blueprint:"mutated"`
}
// ModuleContextIntf is an interface (on a module context helper) consisting of functions related
@ -408,9 +415,10 @@ type ModuleContextIntf interface {
sdkVersion() string
useVndk() bool
isNdk(config android.Config) bool
isLlndk(config android.Config) bool
isLlndkPublic(config android.Config) bool
isVndkPrivate(config android.Config) bool
IsLlndk() bool
IsLlndkPublic() bool
isImplementationForLLNDKPublic() bool
IsVndkPrivate() bool
isVndk() bool
isVndkSp() bool
IsVndkExt() bool
@ -645,6 +653,7 @@ var (
runtimeDepTag = installDependencyTag{name: "runtime lib"}
testPerSrcDepTag = dependencyTag{name: "test_per_src"}
stubImplDepTag = dependencyTag{name: "stub_impl"}
llndkStubDepTag = dependencyTag{name: "llndk stub"}
)
type copyDirectlyInAnyApexDependencyTag dependencyTag
@ -1028,20 +1037,34 @@ func (c *Module) IsNdk(config android.Config) bool {
return inList(c.BaseModuleName(), *getNDKKnownLibs(config))
}
func (c *Module) isLlndk(config android.Config) bool {
// Returns true for both LLNDK (public) and LLNDK-private libs.
return isLlndkLibrary(c.BaseModuleName(), config)
// isLLndk returns true for both LLNDK (public) and LLNDK-private libs.
func (c *Module) IsLlndk() bool {
return c.VendorProperties.IsLLNDK
}
func (c *Module) isLlndkPublic(config android.Config) bool {
// Returns true only for LLNDK (public) libs.
name := c.BaseModuleName()
return isLlndkLibrary(name, config) && !isVndkPrivateLibrary(name, config)
// IsLlndkPublic returns true only for LLNDK (public) libs.
func (c *Module) IsLlndkPublic() bool {
return c.VendorProperties.IsLLNDK && !c.VendorProperties.IsLLNDKPrivate
}
func (c *Module) IsVndkPrivate(config android.Config) bool {
// isImplementationForLLNDKPublic returns true for any variant of a cc_library that has LLNDK stubs
// and does not set llndk.vendor_available: false.
func (c *Module) isImplementationForLLNDKPublic() bool {
library, _ := c.library.(*libraryDecorator)
return library != nil && library.hasLLNDKStubs() &&
(Bool(library.Properties.Llndk.Vendor_available) ||
// TODO(b/170784825): until the LLNDK properties are moved into the cc_library,
// the non-Vendor variants of the cc_library don't know if the corresponding
// llndk_library set vendor_available: false. Since libft2 is the only
// private LLNDK library, hardcode it during the transition.
c.BaseModuleName() != "libft2")
}
func (c *Module) IsVndkPrivate() bool {
// Returns true for LLNDK-private, VNDK-SP-private, and VNDK-core-private.
return isVndkPrivateLibrary(c.BaseModuleName(), config)
library, _ := c.library.(*libraryDecorator)
return library != nil && !Bool(library.Properties.Llndk.Vendor_available) &&
!Bool(c.VendorProperties.Vendor_available) && !c.IsVndkExt()
}
func (c *Module) IsVndk() bool {
@ -1247,16 +1270,20 @@ func (ctx *moduleContextImpl) isNdk(config android.Config) bool {
return ctx.mod.IsNdk(config)
}
func (ctx *moduleContextImpl) isLlndk(config android.Config) bool {
return ctx.mod.isLlndk(config)
func (ctx *moduleContextImpl) IsLlndk() bool {
return ctx.mod.IsLlndk()
}
func (ctx *moduleContextImpl) isLlndkPublic(config android.Config) bool {
return ctx.mod.isLlndkPublic(config)
func (ctx *moduleContextImpl) IsLlndkPublic() bool {
return ctx.mod.IsLlndkPublic()
}
func (ctx *moduleContextImpl) isVndkPrivate(config android.Config) bool {
return ctx.mod.IsVndkPrivate(config)
func (ctx *moduleContextImpl) isImplementationForLLNDKPublic() bool {
return ctx.mod.isImplementationForLLNDKPublic()
}
func (ctx *moduleContextImpl) IsVndkPrivate() bool {
return ctx.mod.IsVndkPrivate()
}
func (ctx *moduleContextImpl) isVndk() bool {
@ -1407,7 +1434,7 @@ func (c *Module) getNameSuffixWithVndkVersion(ctx android.ModuleContext) string
if vndkVersion == "current" {
vndkVersion = ctx.DeviceConfig().PlatformVndkVersion()
}
if c.Properties.VndkVersion != vndkVersion {
if c.Properties.VndkVersion != vndkVersion && c.Properties.VndkVersion != "" {
// add version suffix only if the module is using different vndk version than the
// version in product or vendor partition.
nameSuffix += "." + c.Properties.VndkVersion
@ -1439,7 +1466,7 @@ func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
c.Properties.SubName += nativeBridgeSuffix
}
_, llndk := c.linker.(*llndkStubDecorator)
llndk := c.IsLlndk()
_, llndkHeader := c.linker.(*llndkHeadersDecorator)
if llndk || llndkHeader || (c.UseVndk() && c.HasNonSystemVariants()) {
// .vendor.{version} suffix is added for vendor variant or .product.{version} suffix is
@ -1817,10 +1844,6 @@ func (c *Module) DepsMutator(actx android.BottomUpMutatorContext) {
vendorSnapshotSharedLibs := vendorSnapshotSharedLibs(actx.Config())
rewriteVendorLibs := func(lib string) string {
if isLlndkLibrary(lib, ctx.Config()) {
return lib + llndkLibrarySuffix
}
// only modules with BOARD_VNDK_VERSION uses snapshot.
if c.VndkVersion() != actx.DeviceConfig().VndkVersion() {
return lib
@ -2237,7 +2260,7 @@ func checkDoubleLoadableLibraries(ctx android.TopDownMutatorContext) {
return true
}
if to.isVndkSp() || to.isLlndk(ctx.Config()) || Bool(to.VendorProperties.Double_loadable) {
if to.isVndkSp() || to.IsLlndk() || Bool(to.VendorProperties.Double_loadable) {
return false
}
@ -2252,7 +2275,7 @@ func checkDoubleLoadableLibraries(ctx android.TopDownMutatorContext) {
}
if module, ok := ctx.Module().(*Module); ok {
if lib, ok := module.linker.(*libraryDecorator); ok && lib.shared() {
if module.isLlndk(ctx.Config()) || Bool(module.VendorProperties.Double_loadable) {
if lib.hasLLNDKStubs() || Bool(module.VendorProperties.Double_loadable) {
ctx.WalkDeps(check)
}
}
@ -2372,9 +2395,6 @@ func (c *Module) depsToPaths(ctx android.ModuleContext) PathDeps {
if depTag == android.ProtoPluginDepTag {
return
}
if depTag == llndkImplDep {
return
}
if dep.Target().Os != ctx.Os() {
ctx.ModuleErrorf("OS mismatch between %q and %q", ctx.ModuleName(), depName)
@ -2744,7 +2764,8 @@ func (c *Module) makeLibName(ctx android.ModuleContext, ccDep LinkableInterface,
vendorPublicLibraries := vendorPublicLibraries(ctx.Config())
libName := baseLibName(depName)
isLLndk := isLlndkLibrary(libName, ctx.Config())
ccDepModule, _ := ccDep.(*Module)
isLLndk := ccDepModule != nil && ccDepModule.IsLlndk()
isVendorPublicLib := inList(libName, *vendorPublicLibraries)
bothVendorAndCoreVariantsExist := ccDep.HasVendorVariant() || isLLndk
@ -2896,17 +2917,14 @@ func (c *Module) object() bool {
func GetMakeLinkType(actx android.ModuleContext, c LinkableInterface) string {
if c.UseVndk() {
if ccModule, ok := c.Module().(*Module); ok {
// Only CC modules provide stubs at the moment.
if lib, ok := ccModule.linker.(*llndkStubDecorator); ok {
if Bool(lib.Properties.Vendor_available) {
return "native:vndk"
}
if c.IsLlndk() {
if !c.IsLlndkPublic() {
return "native:vndk_private"
}
return "native:vndk"
}
if c.IsVndk() && !c.IsVndkExt() {
if c.IsVndkPrivate(actx.Config()) {
if c.IsVndkPrivate() {
return "native:vndk_private"
}
return "native:vndk"
@ -3039,7 +3057,7 @@ func (c *Module) DepIsInSameApex(ctx android.BaseModuleContext, dep android.Modu
return false
}
}
if depTag == stubImplDepTag || depTag == llndkImplDep {
if depTag == stubImplDepTag || depTag == llndkStubDepTag {
// We don't track beyond LLNDK or from an implementation library to its stubs.
return false
}

52
cc/cc_test.go
View File

@ -1049,6 +1049,16 @@ func TestVendorSnapshotCapture(t *testing.T) {
name: "obj",
vendor_available: true,
}
cc_library {
name: "libllndk",
llndk_stubs: "libllndk.llndk",
}
llndk_library {
name: "libllndk.llndk",
symbol_file: "",
}
`
config := TestConfig(buildDir, android.Android, nil, bp, nil)
config.TestProductVariables.DeviceVndkVersion = StringPtr("current")
@ -1080,6 +1090,9 @@ func TestVendorSnapshotCapture(t *testing.T) {
filepath.Join(sharedDir, "libvendor.so.json"),
filepath.Join(sharedDir, "libvendor_available.so.json"))
// LLNDK modules are not captured
checkSnapshotExclude(t, ctx, snapshotSingleton, "libllndk", "libllndk.so", sharedDir, sharedVariant)
// For static libraries, all vendor:true and vendor_available modules (including VNDK) are captured.
// Also cfi variants are captured, except for prebuilts like toolchain_library
staticVariant := fmt.Sprintf("android_vendor.VER_%s_%s_static", archType, archVariant)
@ -2899,7 +2912,7 @@ func TestMakeLinkType(t *testing.T) {
{vendorVariant, "libvndkprivate", "native:vndk_private"},
{vendorVariant, "libvendor", "native:vendor"},
{vendorVariant, "libvndkext", "native:vendor"},
{vendorVariant, "libllndk.llndk", "native:vndk"},
{vendorVariant, "libllndk", "native:vndk"},
{vendorVariant27, "prevndk.vndk.27.arm.binder32", "native:vndk"},
{coreVariant, "libvndk", "native:platform"},
{coreVariant, "libvndkprivate", "native:platform"},
@ -3178,8 +3191,39 @@ func TestLlndkLibrary(t *testing.T) {
llndk_library {
name: "libllndk.llndk",
}
cc_prebuilt_library_shared {
name: "libllndkprebuilt",
stubs: { versions: ["1", "2"] },
llndk_stubs: "libllndkprebuilt.llndk",
}
llndk_library {
name: "libllndkprebuilt.llndk",
}
cc_library {
name: "libllndk_with_external_headers",
stubs: { versions: ["1", "2"] },
llndk_stubs: "libllndk_with_external_headers.llndk",
header_libs: ["libexternal_headers"],
export_header_lib_headers: ["libexternal_headers"],
}
llndk_library {
name: "libllndk_with_external_headers.llndk",
}
cc_library_headers {
name: "libexternal_headers",
export_include_dirs: ["include"],
vendor_available: true,
}
`)
actual := ctx.ModuleVariantsForTests("libllndk.llndk")
actual := ctx.ModuleVariantsForTests("libllndk")
for i := 0; i < len(actual); i++ {
if !strings.HasPrefix(actual[i], "android_vendor.VER_") {
actual = append(actual[:i], actual[i+1:]...)
i--
}
}
expected := []string{
"android_vendor.VER_arm64_armv8-a_shared_1",
"android_vendor.VER_arm64_armv8-a_shared_2",
@ -3190,10 +3234,10 @@ func TestLlndkLibrary(t *testing.T) {
}
checkEquals(t, "variants for llndk stubs", expected, actual)
params := ctx.ModuleForTests("libllndk.llndk", "android_vendor.VER_arm_armv7-a-neon_shared").Description("generate stub")
params := ctx.ModuleForTests("libllndk", "android_vendor.VER_arm_armv7-a-neon_shared").Description("generate stub")
checkEquals(t, "use VNDK version for default stubs", "current", params.Args["apiLevel"])
params = ctx.ModuleForTests("libllndk.llndk", "android_vendor.VER_arm_armv7-a-neon_shared_1").Description("generate stub")
params = ctx.ModuleForTests("libllndk", "android_vendor.VER_arm_armv7-a-neon_shared_1").Description("generate stub")
checkEquals(t, "override apiLevel for versioned stubs", "1", params.Args["apiLevel"])
}

12
cc/image.go
View File

@ -308,6 +308,18 @@ func (m *Module) ImageMutatorBegin(mctx android.BaseModuleContext) {
} else {
vendorVariants = append(vendorVariants, platformVndkVersion)
}
} else if lib := moduleLibraryInterface(m); lib != nil && lib.hasLLNDKStubs() {
// This is an LLNDK library. The implementation of the library will be on /system,
// and vendor and product variants will be created with LLNDK stubs.
coreVariantNeeded = true
vendorVariants = append(vendorVariants,
platformVndkVersion,
boardVndkVersion,
)
productVariants = append(productVariants,
platformVndkVersion,
productVndkVersion,
)
} else {
// This is either in /system (or similar: /data), or is a
// modules built with the NDK. Modules built with the NDK

180
cc/library.go
View File

@ -22,6 +22,7 @@ import (
"strings"
"sync"
"github.com/google/blueprint"
"github.com/google/blueprint/pathtools"
"android/soong/android"
@ -114,6 +115,10 @@ type LibraryProperties struct {
// If this is an LLNDK library, the name of the equivalent llndk_library module.
Llndk_stubs *string
// If this is an LLNDK library, properties to describe the LLNDK stubs. Will be copied from
// the module pointed to by llndk_stubs if it is set.
Llndk llndkLibraryProperties
}
// StaticProperties is a properties stanza to affect only attributes of the "static" variants of a
@ -570,6 +575,12 @@ func (library *libraryDecorator) compilerFlags(ctx ModuleContext, flags Flags, d
}
flags = library.baseCompiler.compilerFlags(ctx, flags, deps)
if ctx.IsLlndk() {
// LLNDK libraries ignore most of the properties on the cc_library and use the
// LLNDK-specific properties instead.
// Wipe all the module-local properties, leaving only the global properties.
flags.Local = LocalOrGlobalFlags{}
}
if library.buildStubs() {
// Remove -include <file> when compiling stubs. Otherwise, the force included
// headers might cause conflicting types error with the symbols in the
@ -603,6 +614,22 @@ func (library *libraryDecorator) headerAbiCheckerExplicitlyDisabled() bool {
}
func (library *libraryDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) Objects {
if ctx.IsLlndk() {
// This is the vendor variant of an LLNDK library, build the LLNDK stubs.
vndkVer := ctx.Module().(*Module).VndkVersion()
if !inList(vndkVer, ctx.Config().PlatformVersionActiveCodenames()) || vndkVer == "" {
// For non-enforcing devices, vndkVer is empty. Use "current" in that case, too.
vndkVer = "current"
}
if library.stubsVersion() != "" {
vndkVer = library.stubsVersion()
}
objs, versionScript := compileStubLibrary(ctx, flags, String(library.Properties.Llndk.Symbol_file), vndkVer, "--llndk")
if !Bool(library.Properties.Llndk.Unversioned) {
library.versionScriptPath = android.OptionalPathForPath(versionScript)
}
return objs
}
if library.buildStubs() {
objs, versionScript := compileStubLibrary(ctx, flags, String(library.Properties.Stubs.Symbol_file), library.MutatedProperties.StubsVersion, "--apex")
library.versionScriptPath = android.OptionalPathForPath(versionScript)
@ -693,6 +720,7 @@ type versionedInterface interface {
allStubsVersions() []string
implementationModuleName(name string) string
hasLLNDKStubs() bool
}
var _ libraryInterface = (*libraryDecorator)(nil)
@ -768,12 +796,27 @@ func (library *libraryDecorator) linkerInit(ctx BaseModuleContext) {
}
func (library *libraryDecorator) compilerDeps(ctx DepsContext, deps Deps) Deps {
if ctx.IsLlndk() {
// LLNDK libraries ignore most of the properties on the cc_library and use the
// LLNDK-specific properties instead.
return deps
}
deps = library.baseCompiler.compilerDeps(ctx, deps)
return deps
}
func (library *libraryDecorator) linkerDeps(ctx DepsContext, deps Deps) Deps {
if ctx.IsLlndk() {
// LLNDK libraries ignore most of the properties on the cc_library and use the
// LLNDK-specific properties instead.
deps.HeaderLibs = append(deps.HeaderLibs, library.Properties.Llndk.Export_llndk_headers...)
deps.ReexportHeaderLibHeaders = append(deps.ReexportHeaderLibHeaders,
library.Properties.Llndk.Export_llndk_headers...)
return deps
}
if library.static() {
// Compare with nil because an empty list needs to be propagated.
if library.StaticProperties.Static.System_shared_libs != nil {
@ -977,7 +1020,12 @@ func (library *libraryDecorator) linkShared(ctx ModuleContext,
transformSharedObjectToToc(ctx, outputFile, tocFile, builderFlags)
stripFlags := flagsToStripFlags(flags)
if library.stripper.NeedsStrip(ctx) {
needsStrip := library.stripper.NeedsStrip(ctx)
if library.buildStubs() {
// No need to strip stubs libraries
needsStrip = false
}
if needsStrip {
if ctx.Darwin() {
stripFlags.StripUseGnuStrip = true
}
@ -1017,7 +1065,7 @@ func (library *libraryDecorator) linkShared(ctx ModuleContext,
linkerDeps = append(linkerDeps, deps.LateSharedLibsDeps...)
linkerDeps = append(linkerDeps, objs.tidyFiles...)
if Bool(library.Properties.Sort_bss_symbols_by_size) {
if Bool(library.Properties.Sort_bss_symbols_by_size) && !library.buildStubs() {
unsortedOutputFile := android.PathForModuleOut(ctx, "unsorted", fileName)
transformObjToDynamicBinary(ctx, objs.objFiles, sharedLibs,
deps.StaticLibs, deps.LateStaticLibs, deps.WholeStaticLibs,
@ -1071,7 +1119,7 @@ func (library *libraryDecorator) linkShared(ctx ModuleContext,
ctx.SetProvider(SharedLibraryStubsProvider, SharedLibraryStubsInfo{
SharedStubLibraries: stubsInfo,
IsLLNDK: ctx.isLlndk(ctx.Config()),
IsLLNDK: ctx.IsLlndk(),
})
}
@ -1100,7 +1148,7 @@ func (library *libraryDecorator) coverageOutputFilePath() android.OptionalPath {
func getRefAbiDumpFile(ctx ModuleContext, vndkVersion, fileName string) android.Path {
// The logic must be consistent with classifySourceAbiDump.
isNdk := ctx.isNdk(ctx.Config())
isLlndkOrVndk := ctx.isLlndkPublic(ctx.Config()) || (ctx.useVndk() && ctx.isVndk())
isLlndkOrVndk := ctx.IsLlndkPublic() || (ctx.useVndk() && ctx.isVndk())
refAbiDumpTextFile := android.PathForVndkRefAbiDump(ctx, vndkVersion, fileName, isNdk, isLlndkOrVndk, false)
refAbiDumpGzipFile := android.PathForVndkRefAbiDump(ctx, vndkVersion, fileName, isNdk, isLlndkOrVndk, true)
@ -1153,17 +1201,64 @@ func (library *libraryDecorator) linkSAbiDumpFiles(ctx ModuleContext, objs Objec
library.sAbiDiff = sourceAbiDiff(ctx, library.sAbiOutputFile.Path(),
refAbiDumpFile, fileName, exportedHeaderFlags,
Bool(library.Properties.Header_abi_checker.Check_all_apis),
ctx.isLlndk(ctx.Config()), ctx.isNdk(ctx.Config()), ctx.IsVndkExt())
ctx.IsLlndk(), ctx.isNdk(ctx.Config()), ctx.IsVndkExt())
}
}
}
func processLLNDKHeaders(ctx ModuleContext, srcHeaderDir string, outDir android.ModuleGenPath) android.Path {
srcDir := android.PathForModuleSrc(ctx, srcHeaderDir)
srcFiles := ctx.GlobFiles(filepath.Join(srcDir.String(), "**/*.h"), nil)
var installPaths []android.WritablePath
for _, header := range srcFiles {
headerDir := filepath.Dir(header.String())
relHeaderDir, err := filepath.Rel(srcDir.String(), headerDir)
if err != nil {
ctx.ModuleErrorf("filepath.Rel(%q, %q) failed: %s",
srcDir.String(), headerDir, err)
continue
}
installPaths = append(installPaths, outDir.Join(ctx, relHeaderDir, header.Base()))
}
return processHeadersWithVersioner(ctx, srcDir, outDir, srcFiles, installPaths)
}
// link registers actions to link this library, and sets various fields
// on this library to reflect information that should be exported up the build
// tree (for example, exported flags and include paths).
func (library *libraryDecorator) link(ctx ModuleContext,
flags Flags, deps PathDeps, objs Objects) android.Path {
if ctx.IsLlndk() {
if len(library.Properties.Llndk.Export_preprocessed_headers) > 0 {
// This is the vendor variant of an LLNDK library with preprocessed headers.
genHeaderOutDir := android.PathForModuleGen(ctx, "include")
var timestampFiles android.Paths
for _, dir := range library.Properties.Llndk.Export_preprocessed_headers {
timestampFiles = append(timestampFiles, processLLNDKHeaders(ctx, dir, genHeaderOutDir))
}
if Bool(library.Properties.Llndk.Export_headers_as_system) {
library.reexportSystemDirs(genHeaderOutDir)
} else {
library.reexportDirs(genHeaderOutDir)
}
library.reexportDeps(timestampFiles...)
}
if Bool(library.Properties.Llndk.Export_headers_as_system) {
library.flagExporter.Properties.Export_system_include_dirs = append(
library.flagExporter.Properties.Export_system_include_dirs,
library.flagExporter.Properties.Export_include_dirs...)
library.flagExporter.Properties.Export_include_dirs = nil
}
}
// Linking this library consists of linking `deps.Objs` (.o files in dependencies
// of this library), together with `objs` (.o files created by compiling this
// library).
@ -1246,7 +1341,7 @@ func (library *libraryDecorator) link(ctx ModuleContext,
}
func (library *libraryDecorator) exportVersioningMacroIfNeeded(ctx android.BaseModuleContext) {
if library.buildStubs() && !library.skipAPIDefine {
if library.buildStubs() && library.stubsVersion() != "" && !library.skipAPIDefine {
name := versioningMacroName(ctx.Module().(*Module).ImplementationModuleName(ctx))
ver := library.stubsVersion()
library.reexportFlags("-D" + name + "=" + ver)
@ -1334,7 +1429,7 @@ func (library *libraryDecorator) install(ctx ModuleContext, file android.Path) {
}
library.baseInstaller.subDir = "bootstrap"
}
} else if ctx.directlyInAnyApex() && ctx.isLlndk(ctx.Config()) && !isBionic(ctx.baseModuleName()) {
} else if ctx.directlyInAnyApex() && ctx.IsLlndk() && !isBionic(ctx.baseModuleName()) {
// Skip installing LLNDK (non-bionic) libraries moved to APEX.
ctx.Module().HideFromMake()
}
@ -1411,6 +1506,11 @@ func (library *libraryDecorator) HeaderOnly() {
library.MutatedProperties.BuildStatic = false
}
// hasLLNDKStubs returns true if this cc_library module has a variant that will build LLNDK stubs.
func (library *libraryDecorator) hasLLNDKStubs() bool {
return String(library.Properties.Llndk_stubs) != ""
}
func (library *libraryDecorator) implementationModuleName(name string) string {
return name
}
@ -1423,6 +1523,9 @@ func (library *libraryDecorator) symbolFileForAbiCheck(ctx ModuleContext) *strin
if library.Properties.Header_abi_checker.Symbol_file != nil {
return library.Properties.Header_abi_checker.Symbol_file
}
if ctx.Module().(*Module).IsLlndk() {
return library.Properties.Llndk.Symbol_file
}
if library.hasStubsVariants() && library.Properties.Stubs.Symbol_file != nil {
return library.Properties.Stubs.Symbol_file
}
@ -1587,7 +1690,9 @@ func LinkageMutator(mctx android.BottomUpMutatorContext) {
library := mctx.Module().(*Module).linker.(prebuiltLibraryInterface)
// Differentiate between header only and building an actual static/shared library
if library.buildStatic() || library.buildShared() {
buildStatic := library.buildStatic()
buildShared := library.buildShared()
if buildStatic || buildShared {
// Always create both the static and shared variants for prebuilt libraries, and then disable the one
// that is not being used. This allows them to share the name of a cc_library module, which requires that
// all the variants of the cc_library also exist on the prebuilt.
@ -1598,16 +1703,16 @@ func LinkageMutator(mctx android.BottomUpMutatorContext) {
static.linker.(prebuiltLibraryInterface).setStatic()
shared.linker.(prebuiltLibraryInterface).setShared()
if library.buildShared() {
if buildShared {
mctx.AliasVariation("shared")
} else if library.buildStatic() {
} else if buildStatic {
mctx.AliasVariation("static")
}
if !library.buildStatic() {
if !buildStatic {
static.linker.(prebuiltLibraryInterface).disablePrebuilt()
}
if !library.buildShared() {
if !buildShared {
shared.linker.(prebuiltLibraryInterface).disablePrebuilt()
}
} else {
@ -1622,7 +1727,18 @@ func LinkageMutator(mctx android.BottomUpMutatorContext) {
variations = append(variations, "")
}
if library.BuildStaticVariant() && library.BuildSharedVariant() {
isLLNDK := false
if m, ok := mctx.Module().(*Module); ok {
isLLNDK = m.IsLlndk()
// Don't count the vestigial llndk_library module as isLLNDK, it needs a static
// variant so that a cc_library_prebuilt can depend on it.
if _, ok := m.linker.(*llndkStubDecorator); ok {
isLLNDK = false
}
}
buildStatic := library.BuildStaticVariant() && !isLLNDK
buildShared := library.BuildSharedVariant()
if buildStatic && buildShared {
variations := append([]string{"static", "shared"}, variations...)
modules := mctx.CreateLocalVariations(variations...)
@ -1636,13 +1752,13 @@ func LinkageMutator(mctx android.BottomUpMutatorContext) {
reuseStaticLibrary(mctx, static.(*Module), shared.(*Module))
}
mctx.AliasVariation("shared")
} else if library.BuildStaticVariant() {
} else if buildStatic {
variations := append([]string{"static"}, variations...)
modules := mctx.CreateLocalVariations(variations...)
modules[0].(LinkableInterface).SetStatic()
mctx.AliasVariation("static")
} else if library.BuildSharedVariant() {
} else if buildShared {
variations := append([]string{"shared"}, variations...)
modules := mctx.CreateLocalVariations(variations...)
@ -1675,22 +1791,32 @@ func normalizeVersions(ctx android.BaseModuleContext, versions []string) {
}
func createVersionVariations(mctx android.BottomUpMutatorContext, versions []string) {
// "" is for the non-stubs (implementation) variant.
// "" is for the non-stubs (implementation) variant for system modules, or the LLNDK variant
// for LLNDK modules.
variants := append(android.CopyOf(versions), "")
m := mctx.Module().(*Module)
isLLNDK := m.IsLlndk()
modules := mctx.CreateLocalVariations(variants...)
for i, m := range modules {
if variants[i] != "" {
if variants[i] != "" || isLLNDK {
// A stubs or LLNDK stubs variant.
c := m.(*Module)
c.Properties.HideFromMake = true
c.sanitize = nil
c.stl = nil
c.Properties.PreventInstall = true
lib := moduleLibraryInterface(m)
lib.setBuildStubs()
lib.setStubsVersion(variants[i])
// The implementation depends on the stubs
mctx.AddInterVariantDependency(stubImplDepTag, modules[len(modules)-1], modules[i])
if variants[i] != "" {
// A non-LLNDK stubs module is hidden from make and has a dependency from the
// implementation module to the stubs module.
c.Properties.HideFromMake = true
lib.setStubsVersion(variants[i])
mctx.AddInterVariantDependency(stubImplDepTag, modules[len(modules)-1], modules[i])
}
}
}
mctx.AliasVariation("")
@ -1737,7 +1863,7 @@ func CanBeVersionVariant(module interface {
module.CcLibraryInterface() && module.Shared()
}
func moduleLibraryInterface(module android.Module) libraryInterface {
func moduleLibraryInterface(module blueprint.Module) libraryInterface {
if m, ok := module.(*Module); ok {
return m.library
}
@ -1758,7 +1884,15 @@ func versionSelectorMutator(mctx android.BottomUpMutatorContext) {
// Set the versions on the pre-mutated module so they can be read by any llndk modules that
// depend on the implementation library and haven't been mutated yet.
library.setAllStubsVersions(versions)
return
}
if mctx.Module().(*Module).UseVndk() && library.hasLLNDKStubs() {
// Propagate the version to the llndk stubs module.
mctx.VisitDirectDepsWithTag(llndkStubDepTag, func(stubs android.Module) {
if stubsLib := moduleLibraryInterface(stubs); stubsLib != nil {
stubsLib.setAllStubsVersions(library.allStubsVersions())
}
})
}
}
}

4
cc/linkable.go
View File

@ -43,9 +43,11 @@ type LinkableInterface interface {
UseSdk() bool
UseVndk() bool
MustUseVendorVariant() bool
IsLlndk() bool
IsLlndkPublic() bool
IsVndk() bool
IsVndkExt() bool
IsVndkPrivate(config android.Config) bool
IsVndkPrivate() bool
HasVendorVariant() bool
InProduct() bool

105
cc/llndk_library.go
View File

@ -15,21 +15,21 @@
package cc
import (
"fmt"
"path/filepath"
"strings"
"android/soong/android"
)
var llndkImplDep = dependencyTag{name: "llndk impl"}
var (
llndkLibrarySuffix = ".llndk"
llndkHeadersSuffix = ".llndk"
)
// Creates a stub shared library based on the provided version file.
// Holds properties to describe a stub shared library based on the provided version file.
// The stub library will actually be built by the cc_library module that points to this
// module with the llndk_stubs property.
// TODO(ccross): move the properties from llndk_library modules directly into the cc_library
// modules and remove the llndk_library modules.
//
// Example:
//
@ -64,43 +64,32 @@ type llndkLibraryProperties struct {
// list of llndk headers to re-export include directories from.
Export_llndk_headers []string `android:"arch_variant"`
// whether this module can be directly depended upon by libs that are installed
// to /vendor and /product.
// When set to true, this module can only be depended on by VNDK libraries, not
// vendor nor product libraries. This effectively hides this module from
// non-system modules. Default value is false.
Private *bool
}
type llndkStubDecorator struct {
*libraryDecorator
Properties llndkLibraryProperties
movedToApex bool
}
var _ versionedInterface = (*llndkStubDecorator)(nil)
func (stub *llndkStubDecorator) compilerFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags {
flags = stub.baseCompiler.compilerFlags(ctx, flags, deps)
return addStubLibraryCompilerFlags(flags)
return flags
}
func (stub *llndkStubDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) Objects {
vndkVer := ctx.Module().(*Module).VndkVersion()
if !inList(vndkVer, ctx.Config().PlatformVersionActiveCodenames()) || vndkVer == "" {
// For non-enforcing devices, vndkVer is empty. Use "current" in that case, too.
vndkVer = "current"
}
if stub.stubsVersion() != "" {
vndkVer = stub.stubsVersion()
}
objs, versionScript := compileStubLibrary(ctx, flags, String(stub.Properties.Symbol_file), vndkVer, "--llndk")
if !Bool(stub.Properties.Unversioned) {
stub.versionScriptPath = android.OptionalPathForPath(versionScript)
}
return objs
return Objects{}
}
func (stub *llndkStubDecorator) linkerDeps(ctx DepsContext, deps Deps) Deps {
headers := addSuffix(stub.Properties.Export_llndk_headers, llndkHeadersSuffix)
deps.HeaderLibs = append(deps.HeaderLibs, headers...)
deps.ReexportHeaderLibHeaders = append(deps.ReexportHeaderLibHeaders, headers...)
return deps
}
@ -116,57 +105,9 @@ func (stub *llndkStubDecorator) linkerFlags(ctx ModuleContext, flags Flags) Flag
return stub.libraryDecorator.linkerFlags(ctx, flags)
}
func (stub *llndkStubDecorator) processHeaders(ctx ModuleContext, srcHeaderDir string, outDir android.ModuleGenPath) android.Path {
srcDir := android.PathForModuleSrc(ctx, srcHeaderDir)
srcFiles := ctx.GlobFiles(filepath.Join(srcDir.String(), "**/*.h"), nil)
var installPaths []android.WritablePath
for _, header := range srcFiles {
headerDir := filepath.Dir(header.String())
relHeaderDir, err := filepath.Rel(srcDir.String(), headerDir)
if err != nil {
ctx.ModuleErrorf("filepath.Rel(%q, %q) failed: %s",
srcDir.String(), headerDir, err)
continue
}
installPaths = append(installPaths, outDir.Join(ctx, relHeaderDir, header.Base()))
}
return processHeadersWithVersioner(ctx, srcDir, outDir, srcFiles, installPaths)
}
func (stub *llndkStubDecorator) link(ctx ModuleContext, flags Flags, deps PathDeps,
objs Objects) android.Path {
impl := ctx.GetDirectDepWithTag(stub.implementationModuleName(ctx.ModuleName()), llndkImplDep)
if implApexModule, ok := impl.(android.ApexModule); ok {
stub.movedToApex = implApexModule.DirectlyInAnyApex()
}
if len(stub.Properties.Export_preprocessed_headers) > 0 {
genHeaderOutDir := android.PathForModuleGen(ctx, "include")
var timestampFiles android.Paths
for _, dir := range stub.Properties.Export_preprocessed_headers {
timestampFiles = append(timestampFiles, stub.processHeaders(ctx, dir, genHeaderOutDir))
}
if Bool(stub.Properties.Export_headers_as_system) {
stub.reexportSystemDirs(genHeaderOutDir)
} else {
stub.reexportDirs(genHeaderOutDir)
}
stub.reexportDeps(timestampFiles...)
}
if Bool(stub.Properties.Export_headers_as_system) {
stub.exportIncludesAsSystem(ctx)
stub.libraryDecorator.flagExporter.Properties.Export_include_dirs = []string{}
}
return stub.libraryDecorator.link(ctx, flags, deps, objs)
return nil
}
func (stub *llndkStubDecorator) nativeCoverage() bool {
@ -181,20 +122,8 @@ func (stub *llndkStubDecorator) buildStubs() bool {
return true
}
func (stub *llndkStubDecorator) stubsVersions(ctx android.BaseMutatorContext) []string {
// Get the versions from the implementation module.
impls := ctx.GetDirectDepsWithTag(llndkImplDep)
if len(impls) > 1 {
panic(fmt.Errorf("Expected single implmenetation library, got %d", len(impls)))
} else if len(impls) == 1 {
return moduleLibraryInterface(impls[0]).allStubsVersions()
}
return nil
}
func NewLLndkStubLibrary() *Module {
module, library := NewLibrary(android.DeviceSupported)
library.BuildOnlyShared()
module.stl = nil
module.sanitize = nil
library.disableStripping()
@ -235,10 +164,6 @@ type llndkHeadersDecorator struct {
*libraryDecorator
}
func (headers *llndkHeadersDecorator) Name(name string) string {
return name + llndkHeadersSuffix
}
// llndk_headers contains a set of c/c++ llndk headers files which are imported
// by other soongs cc modules.
func llndkHeadersFactory() android.Module {

6
cc/sabi.go
View File

@ -80,10 +80,10 @@ func classifySourceAbiDump(ctx android.BaseModuleContext) string {
if m.IsNdk(ctx.Config()) {
return "NDK"
}
if m.isLlndkPublic(ctx.Config()) {
if m.isImplementationForLLNDKPublic() {
return "LLNDK"
}
if m.UseVndk() && m.IsVndk() && !m.IsVndkPrivate(ctx.Config()) {
if m.UseVndk() && m.IsVndk() && !m.IsVndkPrivate() {
if m.isVndkSp() {
if m.IsVndkExt() {
return "VNDK-SP-ext"
@ -156,7 +156,7 @@ func shouldCreateSourceAbiDumpForLibrary(ctx android.BaseModuleContext) bool {
}
// Don't create ABI dump for stubs.
if m.isNDKStubLibrary() || m.IsStubs() {
if m.isNDKStubLibrary() || m.IsLlndk() || m.IsStubs() {
return false
}

3
cc/sanitize.go
View File

@ -1002,9 +1002,6 @@ func sanitizerRuntimeMutator(mctx android.BottomUpMutatorContext) {
if runtimeLibrary != "" && (toolchain.Bionic() || c.sanitize.Properties.UbsanRuntimeDep) {
// UBSan is supported on non-bionic linux host builds as well
if isLlndkLibrary(runtimeLibrary, mctx.Config()) && !c.static() && c.UseVndk() {
runtimeLibrary = runtimeLibrary + llndkLibrarySuffix
}
// Adding dependency to the runtime library. We are using *FarVariation*
// because the runtime libraries themselves are not mutated by sanitizer

2
cc/snapshot_prebuilt.go
View File

@ -805,7 +805,7 @@ func VendorSnapshotSourceMutator(ctx android.BottomUpMutatorContext) {
}
// .. and also filter out llndk library
if module.isLlndk(ctx.Config()) {
if module.IsLlndk() {
return
}

3
cc/vendor_snapshot.go
View File

@ -210,6 +210,9 @@ func isSnapshotAware(m *Module, inProprietaryPath bool, apexInfo android.ApexInf
return false
}
// skip llndk_library and llndk_headers which are backward compatible
if m.IsLlndk() {
return false
}
if _, ok := m.linker.(*llndkStubDecorator); ok {
return false
}

58
cc/vndk.go
View File

@ -156,9 +156,15 @@ func (vndk *vndkdep) vndkCheckLinkType(ctx android.BaseModuleContext, to *Module
}
if lib, ok := to.linker.(*libraryDecorator); !ok || !lib.shared() {
// Check only shared libraries.
// Other (static and LL-NDK) libraries are allowed to link.
// Other (static) libraries are allowed to link.
return
}
if to.IsLlndk() {
// LL-NDK libraries are allowed to link
return
}
if !to.UseVndk() {
ctx.ModuleErrorf("(%s) should not link to %q which is not a vendor-available library",
vndk.typeName(), to.Name())
@ -250,22 +256,12 @@ func vndkSpLibraries(config android.Config) map[string]string {
}).(map[string]string)
}
func isLlndkLibrary(baseModuleName string, config android.Config) bool {
_, ok := llndkLibraries(config)[strings.TrimSuffix(baseModuleName, llndkLibrarySuffix)]
return ok
}
func llndkLibraries(config android.Config) map[string]string {
return config.Once(llndkLibrariesKey, func() interface{} {
return make(map[string]string)
}).(map[string]string)
}
func isVndkPrivateLibrary(baseModuleName string, config android.Config) bool {
_, ok := vndkPrivateLibraries(config)[baseModuleName]
return ok
}
func vndkPrivateLibraries(config android.Config) map[string]string {
return config.Once(vndkPrivateLibrariesKey, func() interface{} {
return make(map[string]string)
@ -301,12 +297,10 @@ func processLlndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {
defer vndkLibrariesLock.Unlock()
llndkLibraries(mctx.Config())[name] = filename
m.VendorProperties.IsLLNDK = true
if !Bool(lib.Properties.Vendor_available) {
vndkPrivateLibraries(mctx.Config())[name] = filename
}
if mctx.OtherModuleExists(name) {
mctx.AddFarVariationDependencies(m.Target().Variations(), llndkImplDep, name)
m.VendorProperties.IsLLNDKPrivate = true
}
}
@ -410,9 +404,31 @@ func VndkMutator(mctx android.BottomUpMutatorContext) {
return
}
// This is a temporary measure to copy the properties from an llndk_library into the cc_library
// that will actually build the stubs. It will be removed once the properties are moved into
// the cc_library in the Android.bp files.
mergeLLNDKToLib := func(llndk *Module, llndkProperties *llndkLibraryProperties, flagExporter *flagExporter) {
if llndkLib := moduleLibraryInterface(llndk); llndkLib != nil {
*llndkProperties = llndkLib.(*llndkStubDecorator).Properties
flagExporter.Properties = llndkLib.(*llndkStubDecorator).flagExporter.Properties
m.VendorProperties.IsLLNDK = llndk.VendorProperties.IsLLNDK
m.VendorProperties.IsLLNDKPrivate = llndk.VendorProperties.IsLLNDKPrivate
}
}
lib, is_lib := m.linker.(*libraryDecorator)
prebuilt_lib, is_prebuilt_lib := m.linker.(*prebuiltLibraryLinker)
if m.UseVndk() && is_lib && lib.hasLLNDKStubs() {
llndk := mctx.AddVariationDependencies(nil, llndkStubDepTag, String(lib.Properties.Llndk_stubs))
mergeLLNDKToLib(llndk[0].(*Module), &lib.Properties.Llndk, &lib.flagExporter)
}
if m.UseVndk() && is_prebuilt_lib && prebuilt_lib.hasLLNDKStubs() {
llndk := mctx.AddVariationDependencies(nil, llndkStubDepTag, String(prebuilt_lib.Properties.Llndk_stubs))
mergeLLNDKToLib(llndk[0].(*Module), &prebuilt_lib.Properties.Llndk, &prebuilt_lib.flagExporter)
}
if (is_lib && lib.buildShared()) || (is_prebuilt_lib && prebuilt_lib.buildShared()) {
if m.vndkdep != nil && m.vndkdep.isVndk() && !m.vndkdep.isVndkExt() {
processVndkLibrary(mctx, m)
@ -819,13 +835,11 @@ func (c *vndkSnapshotSingleton) MakeVars(ctx android.MakeVarsContext) {
// they been moved to an apex.
movedToApexLlndkLibraries := make(map[string]bool)
ctx.VisitAllModules(func(module android.Module) {
if m, ok := module.(*Module); ok {
if llndk, ok := m.linker.(*llndkStubDecorator); ok {
// Skip bionic libs, they are handled in different manner
name := llndk.implementationModuleName(m.BaseModuleName())
if llndk.movedToApex && !isBionic(name) {
movedToApexLlndkLibraries[name] = true
}
if library := moduleLibraryInterface(module); library != nil && library.hasLLNDKStubs() {
// Skip bionic libs, they are handled in different manner
name := library.implementationModuleName(module.(*Module).BaseModuleName())
if module.(android.ApexModule).DirectlyInAnyApex() && !isBionic(name) {
movedToApexLlndkLibraries[name] = true
}
}
})

10
rust/rust.go
View File

@ -189,7 +189,15 @@ func (mod *Module) IsVndkExt() bool {
return false
}
func (c *Module) IsVndkPrivate(config android.Config) bool {
func (c *Module) IsVndkPrivate() bool {
return false
}
func (c *Module) IsLlndk() bool {
return false
}
func (c *Module) IsLlndkPublic() bool {
return false
}