Propagate AconfigFiles in ModuleBase.
Aconfig file dependencies are module-independent, and properly part of
ModuleBase.
Bug: b/308625757
Test: manual
Change-Id: I38c5907d1671cc69bb198345201316ae781fdc9f
diff --git a/android/aconfig_providers.go b/android/aconfig_providers.go
index 68fff58..be9beb1 100644
--- a/android/aconfig_providers.go
+++ b/android/aconfig_providers.go
@@ -15,6 +15,10 @@
package android
import (
+ "fmt"
+ "io"
+ "reflect"
+
"github.com/google/blueprint"
)
@@ -45,6 +49,8 @@
var AconfigTransitiveDeclarationsInfoProvider = blueprint.NewProvider[AconfigTransitiveDeclarationsInfo]()
+// CollectDependencyAconfigFiles is used by some module types to provide finer dependency graphing than
+// we can do in ModuleBase.
func CollectDependencyAconfigFiles(ctx ModuleContext, mergedAconfigFiles *map[string]Paths) {
if *mergedAconfigFiles == nil {
*mergedAconfigFiles = make(map[string]Paths)
@@ -54,7 +60,14 @@
(*mergedAconfigFiles)[dep.Container] = append((*mergedAconfigFiles)[dep.Container], dep.IntermediateCacheOutputPath)
return
}
- if dep, _ := OtherModuleProvider(ctx, module, AconfigTransitiveDeclarationsInfoProvider); len(dep.AconfigFiles) > 0 {
+ if dep, ok := OtherModuleProvider(ctx, module, aconfigPropagatingProviderKey); ok {
+ for container, v := range dep.AconfigFiles {
+ (*mergedAconfigFiles)[container] = append((*mergedAconfigFiles)[container], v...)
+ }
+ }
+ // We process these last, so that they determine the final value, eliminating any duplicates that we picked up
+ // from UpdateAndroidBuildActions.
+ if dep, ok := OtherModuleProvider(ctx, module, AconfigTransitiveDeclarationsInfoProvider); ok {
for container, v := range dep.AconfigFiles {
(*mergedAconfigFiles)[container] = append((*mergedAconfigFiles)[container], v...)
}
@@ -62,7 +75,7 @@
})
for container, aconfigFiles := range *mergedAconfigFiles {
- (*mergedAconfigFiles)[container] = mergeAconfigFiles(ctx, container, aconfigFiles)
+ (*mergedAconfigFiles)[container] = mergeAconfigFiles(ctx, container, aconfigFiles, false)
}
SetProvider(ctx, AconfigTransitiveDeclarationsInfoProvider, AconfigTransitiveDeclarationsInfo{
@@ -70,7 +83,94 @@
})
}
-func mergeAconfigFiles(ctx ModuleContext, container string, inputs Paths) Paths {
+func SetAconfigFileMkEntries(m *ModuleBase, entries *AndroidMkEntries, aconfigFiles map[string]Paths) {
+ setAconfigFileMkEntries(m, entries, aconfigFiles)
+}
+
+type aconfigPropagatingDeclarationsInfo struct {
+ AconfigFiles map[string]Paths
+}
+
+var aconfigPropagatingProviderKey = blueprint.NewProvider[aconfigPropagatingDeclarationsInfo]()
+
+func aconfigUpdateAndroidBuildActions(ctx ModuleContext) {
+ mergedAconfigFiles := make(map[string]Paths)
+ ctx.VisitDirectDepsIgnoreBlueprint(func(module Module) {
+ // If any of our dependencies have aconfig declarations (directly or propagated), then merge those and provide them.
+ if dep, ok := OtherModuleProvider(ctx, module, AconfigDeclarationsProviderKey); ok {
+ mergedAconfigFiles[dep.Container] = append(mergedAconfigFiles[dep.Container], dep.IntermediateCacheOutputPath)
+ }
+ if dep, ok := OtherModuleProvider(ctx, module, aconfigPropagatingProviderKey); ok {
+ for container, v := range dep.AconfigFiles {
+ mergedAconfigFiles[container] = append(mergedAconfigFiles[container], v...)
+ }
+ }
+ if dep, ok := OtherModuleProvider(ctx, module, AconfigTransitiveDeclarationsInfoProvider); ok {
+ for container, v := range dep.AconfigFiles {
+ mergedAconfigFiles[container] = append(mergedAconfigFiles[container], v...)
+ }
+ }
+ })
+ // We only need to set the provider if we have aconfig files.
+ if len(mergedAconfigFiles) > 0 {
+ for container, aconfigFiles := range mergedAconfigFiles {
+ mergedAconfigFiles[container] = mergeAconfigFiles(ctx, container, aconfigFiles, true)
+ }
+
+ SetProvider(ctx, aconfigPropagatingProviderKey, aconfigPropagatingDeclarationsInfo{
+ AconfigFiles: mergedAconfigFiles,
+ })
+ }
+}
+
+func aconfigUpdateAndroidMkData(ctx fillInEntriesContext, mod Module, data *AndroidMkData) {
+ info, ok := SingletonModuleProvider(ctx, mod, aconfigPropagatingProviderKey)
+ // If there is no aconfigPropagatingProvider, or there are no AconfigFiles, then we are done.
+ if !ok || len(info.AconfigFiles) == 0 {
+ return
+ }
+ data.Extra = append(data.Extra, func(w io.Writer, outputFile Path) {
+ AndroidMkEmitAssignList(w, "LOCAL_ACONFIG_FILES", getAconfigFilePaths(mod.base(), info.AconfigFiles).Strings())
+ })
+ // If there is a Custom writer, it needs to support this provider.
+ if data.Custom != nil {
+ switch reflect.TypeOf(mod).String() {
+ case "*aidl.aidlApi": // writes non-custom before adding .phony
+ case "*android_sdk.sdkRepoHost": // doesn't go through base_rules
+ case "*apex.apexBundle": // aconfig_file properties written
+ case "*bpf.bpf": // properties written (both for module and objs)
+ case "*genrule.Module": // writes non-custom before adding .phony
+ case "*java.SystemModules": // doesn't go through base_rules
+ case "*phony.phony": // properties written
+ case "*phony.PhonyRule": // writes phony deps and acts like `.PHONY`
+ case "*sysprop.syspropLibrary": // properties written
+ default:
+ panic(fmt.Errorf("custom make rules do not handle aconfig files for %q (%q) module %q", ctx.ModuleType(mod), reflect.TypeOf(mod), mod))
+ }
+ }
+}
+
+func aconfigUpdateAndroidMkEntries(ctx fillInEntriesContext, mod Module, entries *[]AndroidMkEntries) {
+ // If there are no entries, then we can ignore this module, even if it has aconfig files.
+ if len(*entries) == 0 {
+ return
+ }
+ info, ok := SingletonModuleProvider(ctx, mod, aconfigPropagatingProviderKey)
+ if !ok || len(info.AconfigFiles) == 0 {
+ return
+ }
+ // All of the files in the module potentially depend on the aconfig flag values.
+ for idx, _ := range *entries {
+ (*entries)[idx].ExtraEntries = append((*entries)[idx].ExtraEntries,
+ func(ctx AndroidMkExtraEntriesContext, entries *AndroidMkEntries) {
+ setAconfigFileMkEntries(mod.base(), entries, info.AconfigFiles)
+ },
+ )
+
+ }
+}
+
+func mergeAconfigFiles(ctx ModuleContext, container string, inputs Paths, generateRule bool) Paths {
inputs = LastUniquePaths(inputs)
if len(inputs) == 1 {
return Paths{inputs[0]}
@@ -78,22 +178,28 @@
output := PathForModuleOut(ctx, container, "aconfig_merged.pb")
- ctx.Build(pctx, BuildParams{
- Rule: mergeAconfigFilesRule,
- Description: "merge aconfig files",
- Inputs: inputs,
- Output: output,
- Args: map[string]string{
- "flags": JoinWithPrefix(inputs.Strings(), "--cache "),
- },
- })
+ if generateRule {
+ ctx.Build(pctx, BuildParams{
+ Rule: mergeAconfigFilesRule,
+ Description: "merge aconfig files",
+ Inputs: inputs,
+ Output: output,
+ Args: map[string]string{
+ "flags": JoinWithPrefix(inputs.Strings(), "--cache "),
+ },
+ })
+ }
return Paths{output}
}
-func SetAconfigFileMkEntries(m *ModuleBase, entries *AndroidMkEntries, aconfigFiles map[string]Paths) {
+func setAconfigFileMkEntries(m *ModuleBase, entries *AndroidMkEntries, aconfigFiles map[string]Paths) {
+ entries.AddPaths("LOCAL_ACONFIG_FILES", getAconfigFilePaths(m, aconfigFiles))
+}
+
+func getAconfigFilePaths(m *ModuleBase, aconfigFiles map[string]Paths) (paths Paths) {
// TODO(b/311155208): The default container here should be system.
- container := ""
+ container := "system"
if m.SocSpecific() {
container = "vendor"
@@ -103,5 +209,18 @@
container = "system_ext"
}
- entries.SetPaths("LOCAL_ACONFIG_FILES", aconfigFiles[container])
+ paths = append(paths, aconfigFiles[container]...)
+ if container == "system" {
+ // TODO(b/311155208): Once the default container is system, we can drop this.
+ paths = append(paths, aconfigFiles[""]...)
+ }
+ if container != "system" {
+ if len(aconfigFiles[container]) == 0 && len(aconfigFiles[""]) > 0 {
+ // TODO(b/308625757): Either we guessed the container wrong, or the flag is misdeclared.
+ // For now, just include the system (aka "") container if we get here.
+ //fmt.Printf("container_mismatch: module=%v container=%v files=%v\n", m, container, aconfigFiles)
+ }
+ paths = append(paths, aconfigFiles[""]...)
+ }
+ return
}
diff --git a/android/androidmk.go b/android/androidmk.go
index 235d7c0..07f7c58 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -859,6 +859,7 @@
}
data.fillInData(ctx, mod)
+ aconfigUpdateAndroidMkData(ctx, mod.(Module), &data)
prefix := ""
if amod.ArchSpecific() {
@@ -943,6 +944,7 @@
}
entriesList := provider.AndroidMkEntries()
+ aconfigUpdateAndroidMkEntries(ctx, mod.(Module), &entriesList)
// Any new or special cases here need review to verify correct propagation of license information.
for _, entries := range entriesList {
diff --git a/android/module.go b/android/module.go
index 6fd8657..5c7bbbf 100644
--- a/android/module.go
+++ b/android/module.go
@@ -1777,6 +1777,11 @@
return
}
+ aconfigUpdateAndroidBuildActions(ctx)
+ if ctx.Failed() {
+ return
+ }
+
// Create the set of tagged dist files after calling GenerateAndroidBuildActions
// as GenerateTaggedDistFiles() calls OutputFiles(tag) and so relies on the
// output paths being set which must be done before or during
diff --git a/android/testing.go b/android/testing.go
index f88049c..7b4411e 100644
--- a/android/testing.go
+++ b/android/testing.go
@@ -1121,6 +1121,7 @@
}
entriesList := p.AndroidMkEntries()
+ aconfigUpdateAndroidMkEntries(ctx, mod.(Module), &entriesList)
for i, _ := range entriesList {
entriesList[i].fillInEntries(ctx, mod)
}
@@ -1136,6 +1137,7 @@
}
data := p.AndroidMk()
data.fillInData(ctx, mod)
+ aconfigUpdateAndroidMkData(ctx, mod.(Module), &data)
return data
}