Merge "Fix binaries and symlinks for prefer32"

am: 9fdbbb3c54

Change-Id: Id8ae0404be8a3ce3dfde2f20ecd0404de16146e7

android/arch.go

@@ -274,6 +274,7 @@ func ArchMutator(mctx BottomUpMutatorContext) {
 	}
 
 	var moduleTargets []Target
+	primaryModules := make(map[int]bool)
 
 	for _, class := range osClasses {
 		targets := mctx.AConfig().Targets[class]
@@ -293,11 +294,18 @@ func ArchMutator(mctx BottomUpMutatorContext) {
 		if multilib == "" {
 			multilib = module.base().commonProperties.Default_multilib
 		}
-		targets, err := decodeMultilib(multilib, targets)
+		prefer32 := false
+		if class == Device {
+			prefer32 = mctx.AConfig().DevicePrefer32BitExecutables()
+		}
+		targets, err := decodeMultilib(multilib, targets, prefer32)
 		if err != nil {
 			mctx.ModuleErrorf("%s", err.Error())
 		}
-		moduleTargets = append(moduleTargets, targets...)
+		if len(targets) > 0 {
+			primaryModules[len(moduleTargets)] = true
+			moduleTargets = append(moduleTargets, targets...)
+		}
 	}
 
 	if len(moduleTargets) == 0 {
@@ -313,7 +321,7 @@ func ArchMutator(mctx BottomUpMutatorContext) {
 
 	modules := mctx.CreateVariations(targetNames...)
 	for i, m := range modules {
-		m.(Module).base().SetTarget(moduleTargets[i])
+		m.(Module).base().SetTarget(moduleTargets[i], primaryModules[i])
 		m.(Module).base().setArchProperties(mctx)
 	}
 }
@@ -915,15 +923,26 @@ func filterMultilibTargets(targets []Target, multilib string) []Target {
 }
 
 // Use the module multilib setting to select one or more targets from a target list
-func decodeMultilib(multilib string, targets []Target) ([]Target, error) {
+func decodeMultilib(multilib string, targets []Target, prefer32 bool) ([]Target, error) {
 	buildTargets := []Target{}
+	if multilib == "first" {
+		if prefer32 {
+			multilib = "prefer32"
+		} else {
+			multilib = "prefer64"
+		}
+	}
 	switch multilib {
 	case "common":
 		buildTargets = append(buildTargets, commonTarget)
 	case "both":
-		buildTargets = append(buildTargets, targets...)
-	case "first":
-		buildTargets = append(buildTargets, targets[0])
+		if prefer32 {
+			buildTargets = append(buildTargets, filterMultilibTargets(targets, "lib32")...)
+			buildTargets = append(buildTargets, filterMultilibTargets(targets, "lib64")...)
+		} else {
+			buildTargets = append(buildTargets, filterMultilibTargets(targets, "lib64")...)
+			buildTargets = append(buildTargets, filterMultilibTargets(targets, "lib32")...)
+		}
 	case "32":
 		buildTargets = filterMultilibTargets(targets, "lib32")
 	case "64":
@@ -933,6 +952,11 @@ func decodeMultilib(multilib string, targets []Target) ([]Target, error) {
 		if len(buildTargets) == 0 {
 			buildTargets = filterMultilibTargets(targets, "lib64")
 		}
+	case "prefer64":
+		buildTargets = filterMultilibTargets(targets, "lib64")
+		if len(buildTargets) == 0 {
+			buildTargets = filterMultilibTargets(targets, "lib32")
+		}
 	default:
 		return nil, fmt.Errorf(`compile_multilib must be "both", "first", "32", "64", or "prefer32" found %q`,
 			multilib)

android/module.go

@@ -57,6 +57,7 @@ type ModuleBuildParams struct {
 
 type androidBaseContext interface {
 	Target() Target
+	TargetPrimary() bool
 	Arch() Arch
 	Os() OsType
 	Host() bool
@@ -145,7 +146,8 @@ type commonProperties struct {
 	Required []string
 
 	// Set by TargetMutator
-	CompileTarget Target `blueprint:"mutated"`
+	CompileTarget  Target `blueprint:"mutated"`
+	CompilePrimary bool   `blueprint:"mutated"`
 
 	// Set by InitAndroidModule
 	HostOrDeviceSupported HostOrDeviceSupported `blueprint:"mutated"`
@@ -282,14 +284,19 @@ func (a *ModuleBase) base() *ModuleBase {
 	return a
 }
 
-func (a *ModuleBase) SetTarget(target Target) {
+func (a *ModuleBase) SetTarget(target Target, primary bool) {
 	a.commonProperties.CompileTarget = target
+	a.commonProperties.CompilePrimary = primary
 }
 
 func (a *ModuleBase) Target() Target {
 	return a.commonProperties.CompileTarget
 }
 
+func (a *ModuleBase) TargetPrimary() bool {
+	return a.commonProperties.CompilePrimary
+}
+
 func (a *ModuleBase) Os() OsType {
 	return a.Target().Os
 }
@@ -420,8 +427,9 @@ func (a *ModuleBase) generateModuleTarget(ctx blueprint.ModuleContext) {
 
 func (a *ModuleBase) androidBaseContextFactory(ctx blueprint.BaseModuleContext) androidBaseContextImpl {
 	return androidBaseContextImpl{
-		target: a.commonProperties.CompileTarget,
-		config: ctx.Config().(Config),
+		target:        a.commonProperties.CompileTarget,
+		targetPrimary: a.commonProperties.CompilePrimary,
+		config:        ctx.Config().(Config),
 	}
 }
 
@@ -454,9 +462,10 @@ func (a *ModuleBase) GenerateBuildActions(ctx blueprint.ModuleContext) {
 }
 
 type androidBaseContextImpl struct {
-	target Target
-	debug  bool
-	config Config
+	target        Target
+	targetPrimary bool
+	debug         bool
+	config        Config
 }
 
 type androidModuleContext struct {
@@ -536,6 +545,10 @@ func (a *androidBaseContextImpl) Target() Target {
 	return a.target
 }
 
+func (a *androidBaseContextImpl) TargetPrimary() bool {
+	return a.targetPrimary
+}
+
 func (a *androidBaseContextImpl) Arch() Arch {
 	return a.target.Arch
 }

cc/binary.go

@@ -170,11 +170,7 @@ func (binary *binaryDecorator) linkerInit(ctx BaseModuleContext) {
 		if binary.Properties.Stem == "" && binary.Properties.Suffix == "" {
 			ctx.PropertyErrorf("symlink_preferred_arch", "must also specify stem or suffix")
 		}
-		prefer32 := false
-		if ctx.Device() {
-			prefer32 = ctx.AConfig().DevicePrefer32BitExecutables()
-		}
-		if ctx.PrimaryArch() != prefer32 {
+		if ctx.TargetPrimary() {
 			binary.baseInstaller.Properties.Symlinks = append(binary.baseInstaller.Properties.Symlinks,
 				ctx.ModuleName())
 		}