Statically link the unwinder into binaries packaged into an unbundled APEX with legacy_android10_support: true.
Bug: 149075752
Test: tapas com.android.conscrypt com.android.tethering arm64
Test: m out/target/product/generic_arm64/{,symbols/}apex/com.android.{tethering,conscrypt}/lib64/libc++.so
Test: Verified that unwinder was dynamically linked to tethering's
Test: libc++ and statically linked to conscrypt's.
Test: lunch flame-userdebug && m
Test: Verified that unwinder was dynamically linked to /system/lib64/libc++.so
Change-Id: I98eed7cb4316962b19b5c12e150c224c25d0e91d
diff --git a/android/apex.go b/android/apex.go
index 17ec9b1..43a42df 100644
--- a/android/apex.go
+++ b/android/apex.go
@@ -19,6 +19,14 @@
"sync"
)
+type ApexInfo struct {
+ // Name of the apex variant that this module is mutated into
+ ApexName string
+
+ // Whether this apex variant needs to target Android 10
+ LegacyAndroid10Support bool
+}
+
// ApexModule is the interface that a module type is expected to implement if
// the module has to be built differently depending on whether the module
// is destined for an apex or not (installed to one of the regular partitions).
@@ -38,12 +46,12 @@
Module
apexModuleBase() *ApexModuleBase
- // Marks that this module should be built for the APEXes of the specified names.
+ // Marks that this module should be built for the specified APEXes.
// Call this before apex.apexMutator is run.
- BuildForApexes(apexNames []string)
+ BuildForApexes(apexes []ApexInfo)
- // Returns the name of the APEXes that this modoule will be built for
- ApexVariations() []string
+ // Returns the APEXes that this module will be built for
+ ApexVariations() []ApexInfo
// Returns the name of APEX that this module will be built for. Empty string
// is returned when 'IsForPlatform() == true'. Note that a module can be
@@ -72,10 +80,6 @@
// for an APEX marked via BuildForApexes().
CreateApexVariations(mctx BottomUpMutatorContext) []Module
- // Sets the name of the apex variant of this module. Called inside
- // CreateApexVariations.
- setApexName(apexName string)
-
// Tests if this module is available for the specified APEX or ":platform"
AvailableFor(what string) bool
@@ -94,8 +98,7 @@
// Default is ["//apex_available:platform"].
Apex_available []string
- // Name of the apex variant that this module is mutated into
- ApexName string `blueprint:"mutated"`
+ Info ApexInfo `blueprint:"mutated"`
}
// Provides default implementation for the ApexModule interface. APEX-aware
@@ -106,37 +109,37 @@
canHaveApexVariants bool
apexVariationsLock sync.Mutex // protects apexVariations during parallel apexDepsMutator
- apexVariations []string
+ apexVariations []ApexInfo
}
func (m *ApexModuleBase) apexModuleBase() *ApexModuleBase {
return m
}
-func (m *ApexModuleBase) BuildForApexes(apexNames []string) {
+func (m *ApexModuleBase) BuildForApexes(apexes []ApexInfo) {
m.apexVariationsLock.Lock()
defer m.apexVariationsLock.Unlock()
- for _, apexName := range apexNames {
- if !InList(apexName, m.apexVariations) {
- m.apexVariations = append(m.apexVariations, apexName)
+nextApex:
+ for _, apex := range apexes {
+ for _, v := range m.apexVariations {
+ if v.ApexName == apex.ApexName {
+ continue nextApex
+ }
}
+ m.apexVariations = append(m.apexVariations, apex)
}
}
-func (m *ApexModuleBase) ApexVariations() []string {
+func (m *ApexModuleBase) ApexVariations() []ApexInfo {
return m.apexVariations
}
func (m *ApexModuleBase) ApexName() string {
- return m.ApexProperties.ApexName
+ return m.ApexProperties.Info.ApexName
}
func (m *ApexModuleBase) IsForPlatform() bool {
- return m.ApexProperties.ApexName == ""
-}
-
-func (m *ApexModuleBase) setApexName(apexName string) {
- m.ApexProperties.ApexName = apexName
+ return m.ApexProperties.Info.ApexName == ""
}
func (m *ApexModuleBase) CanHaveApexVariants() bool {
@@ -185,25 +188,35 @@
}
}
+type byApexName []ApexInfo
+
+func (a byApexName) Len() int { return len(a) }
+func (a byApexName) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
+func (a byApexName) Less(i, j int) bool { return a[i].ApexName < a[j].ApexName }
+
func (m *ApexModuleBase) CreateApexVariations(mctx BottomUpMutatorContext) []Module {
if len(m.apexVariations) > 0 {
m.checkApexAvailableProperty(mctx)
- sort.Strings(m.apexVariations)
+ sort.Sort(byApexName(m.apexVariations))
variations := []string{}
variations = append(variations, "") // Original variation for platform
- variations = append(variations, m.apexVariations...)
+ for _, apex := range m.apexVariations {
+ variations = append(variations, apex.ApexName)
+ }
defaultVariation := ""
mctx.SetDefaultDependencyVariation(&defaultVariation)
modules := mctx.CreateVariations(variations...)
- for i, m := range modules {
+ for i, mod := range modules {
platformVariation := i == 0
- if platformVariation && !mctx.Host() && !m.(ApexModule).AvailableFor(AvailableToPlatform) {
- m.SkipInstall()
+ if platformVariation && !mctx.Host() && !mod.(ApexModule).AvailableFor(AvailableToPlatform) {
+ mod.SkipInstall()
}
- m.(ApexModule).setApexName(variations[i])
+ if !platformVariation {
+ mod.(ApexModule).apexModuleBase().ApexProperties.Info = m.apexVariations[i-1]
+ }
}
return modules
}
@@ -230,16 +243,16 @@
// depended on by the specified APEXes. Directly depending means that a module
// is explicitly listed in the build definition of the APEX via properties like
// native_shared_libs, java_libs, etc.
-func UpdateApexDependency(apexNames []string, moduleName string, directDep bool) {
+func UpdateApexDependency(apexes []ApexInfo, moduleName string, directDep bool) {
apexNamesMapMutex.Lock()
defer apexNamesMapMutex.Unlock()
- for _, apexName := range apexNames {
+ for _, apex := range apexes {
apexesForModule, ok := apexNamesMap()[moduleName]
if !ok {
apexesForModule = make(map[string]bool)
apexNamesMap()[moduleName] = apexesForModule
}
- apexesForModule[apexName] = apexesForModule[apexName] || directDep
+ apexesForModule[apex.ApexName] = apexesForModule[apex.ApexName] || directDep
}
}
diff --git a/apex/apex.go b/apex/apex.go
index 54a335a..002bf5b 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -1024,17 +1024,17 @@
// Mark the direct and transitive dependencies of apex bundles so that they
// can be built for the apex bundles.
func apexDepsMutator(mctx android.TopDownMutatorContext) {
- var apexBundleNames []string
+ var apexBundles []android.ApexInfo
var directDep bool
if a, ok := mctx.Module().(*apexBundle); ok && !a.vndkApex {
- apexBundleNames = []string{mctx.ModuleName()}
+ apexBundles = []android.ApexInfo{{mctx.ModuleName(), proptools.Bool(a.properties.Legacy_android10_support)}}
directDep = true
} else if am, ok := mctx.Module().(android.ApexModule); ok {
- apexBundleNames = am.ApexVariations()
+ apexBundles = am.ApexVariations()
directDep = false
}
- if len(apexBundleNames) == 0 {
+ if len(apexBundles) == 0 {
return
}
@@ -1042,8 +1042,8 @@
depName := mctx.OtherModuleName(child)
if am, ok := child.(android.ApexModule); ok && am.CanHaveApexVariants() &&
(directDep || am.DepIsInSameApex(mctx, child)) {
- android.UpdateApexDependency(apexBundleNames, depName, directDep)
- am.BuildForApexes(apexBundleNames)
+ android.UpdateApexDependency(apexBundles, depName, directDep)
+ am.BuildForApexes(apexBundles)
}
})
}
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 0420586..5000c88 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -3437,6 +3437,7 @@
apex {
name: "myapex",
key: "myapex.key",
+ native_shared_libs: ["mylib"],
legacy_android10_support: true,
}
@@ -3445,12 +3446,54 @@
public_key: "testkey.avbpubkey",
private_key: "testkey.pem",
}
- `)
+
+ cc_library {
+ name: "mylib",
+ srcs: ["mylib.cpp"],
+ stl: "libc++",
+ system_shared_libs: [],
+ apex_available: [ "myapex" ],
+ }
+
+ cc_library {
+ name: "libc++",
+ srcs: ["mylib.cpp"],
+ stl: "none",
+ system_shared_libs: [],
+ apex_available: [ "myapex" ],
+ }
+
+ cc_library_static {
+ name: "libc++demangle",
+ srcs: ["mylib.cpp"],
+ stl: "none",
+ system_shared_libs: [],
+ }
+
+ cc_library_static {
+ name: "libunwind_llvm",
+ srcs: ["mylib.cpp"],
+ stl: "none",
+ system_shared_libs: [],
+ }
+ `, withUnbundledBuild)
module := ctx.ModuleForTests("myapex", "android_common_myapex_image")
args := module.Rule("apexRule").Args
ensureContains(t, args["opt_flags"], "--manifest_json "+module.Output("apex_manifest.json").Output.String())
ensureNotContains(t, args["opt_flags"], "--no_hashtree")
+
+ // The copies of the libraries in the apex should have one more dependency than
+ // the ones outside the apex, namely the unwinder. Ideally we should check
+ // the dependency names directly here but for some reason the names are blank in
+ // this test.
+ for _, lib := range []string{"libc++", "mylib"} {
+ apexImplicits := ctx.ModuleForTests(lib, "android_arm64_armv8-a_shared_myapex").Rule("ld").Implicits
+ nonApexImplicits := ctx.ModuleForTests(lib, "android_arm64_armv8-a_shared").Rule("ld").Implicits
+ if len(apexImplicits) != len(nonApexImplicits)+1 {
+ t.Errorf("%q missing unwinder dep", lib)
+ }
+ }
}
func TestJavaSDKLibrary(t *testing.T) {
diff --git a/cc/cc.go b/cc/cc.go
index e55c576..9ab176c 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -95,6 +95,8 @@
HeaderLibs []string
RuntimeLibs []string
+ StaticUnwinderIfLegacy bool
+
ReexportSharedLibHeaders, ReexportStaticLibHeaders, ReexportHeaderLibHeaders []string
ObjFiles []string
@@ -385,6 +387,7 @@
lateSharedDepTag = DependencyTag{Name: "late shared", Library: true, Shared: true}
staticExportDepTag = DependencyTag{Name: "static", Library: true, ReexportFlags: true}
lateStaticDepTag = DependencyTag{Name: "late static", Library: true}
+ staticUnwinderDepTag = DependencyTag{Name: "static unwinder", Library: true}
wholeStaticDepTag = DependencyTag{Name: "whole static", Library: true, ReexportFlags: true}
headerDepTag = DependencyTag{Name: "header", Library: true}
headerExportDepTag = DependencyTag{Name: "header", Library: true, ReexportFlags: true}
@@ -1796,6 +1799,12 @@
}, depTag, lib)
}
+ if deps.StaticUnwinderIfLegacy && ctx.Config().UnbundledBuild() {
+ actx.AddVariationDependencies([]blueprint.Variation{
+ {Mutator: "link", Variation: "static"},
+ }, staticUnwinderDepTag, staticUnwinder(actx))
+ }
+
for _, lib := range deps.LateStaticLibs {
actx.AddVariationDependencies([]blueprint.Variation{
{Mutator: "link", Variation: "static"},
@@ -2169,6 +2178,14 @@
}
}
+ if depTag == staticUnwinderDepTag {
+ if c.ApexProperties.Info.LegacyAndroid10Support {
+ depTag = StaticDepTag
+ } else {
+ return
+ }
+ }
+
// Extract ExplicitlyVersioned field from the depTag and reset it inside the struct.
// Otherwise, SharedDepTag and lateSharedDepTag with ExplicitlyVersioned set to true
// won't be matched to SharedDepTag and lateSharedDepTag.
diff --git a/cc/stl.go b/cc/stl.go
index af015f9..eda8a4f 100644
--- a/cc/stl.go
+++ b/cc/stl.go
@@ -151,6 +151,14 @@
return version < 21
}
+func staticUnwinder(ctx android.BaseModuleContext) string {
+ if ctx.Arch().ArchType == android.Arm {
+ return "libunwind_llvm"
+ } else {
+ return "libgcc_stripped"
+ }
+}
+
func (stl *stl) deps(ctx BaseModuleContext, deps Deps) Deps {
switch stl.Properties.SelectedStl {
case "libstdc++":
@@ -172,16 +180,16 @@
}
if ctx.toolchain().Bionic() {
if ctx.staticBinary() {
- deps.StaticLibs = append(deps.StaticLibs, "libm", "libc")
- if ctx.Arch().ArchType == android.Arm {
- deps.StaticLibs = append(deps.StaticLibs, "libunwind_llvm")
- } else {
- deps.StaticLibs = append(deps.StaticLibs, "libgcc_stripped")
- }
+ deps.StaticLibs = append(deps.StaticLibs, "libm", "libc", staticUnwinder(ctx))
+ } else {
+ deps.StaticUnwinderIfLegacy = true
}
}
case "":
// None or error.
+ if ctx.toolchain().Bionic() && ctx.Module().Name() == "libc++" {
+ deps.StaticUnwinderIfLegacy = true
+ }
case "ndk_system":
// TODO: Make a system STL prebuilt for the NDK.
// The system STL doesn't have a prebuilt (it uses the system's libstdc++), but it does have