Merge "Add a basic target_files.zip" into main
diff --git a/android/Android.bp b/android/Android.bp
index 4e2006d..bb16856 100644
--- a/android/Android.bp
+++ b/android/Android.bp
@@ -98,6 +98,7 @@
         "raw_files.go",
         "recovery_build_prop.go",
         "register.go",
+        "removed_package.go",
         "rule_builder.go",
         "sandbox.go",
         "sbom.go",
diff --git a/android/removed_package.go b/android/removed_package.go
new file mode 100644
index 0000000..aa54c2a
--- /dev/null
+++ b/android/removed_package.go
@@ -0,0 +1,60 @@
+package android
+
+import (
+	"fmt"
+
+	"github.com/google/blueprint"
+	"github.com/google/blueprint/proptools"
+)
+
+func init() {
+	InitRegistrationContext.RegisterModuleType("removed_package", removedPackageModuleFactory)
+}
+
+type removedPackageModuleProps struct {
+	// The error message to display when this module is built. This is optional, there is a
+	// reasonable default message.
+	Message *string
+}
+
+type removedPackageModule struct {
+	ModuleBase
+	properties removedPackageModuleProps
+}
+
+// removed_package will cause a build failure when it's included in PRODUCT_PACKAGES. It's needed
+// because currently you can add non-existent packages to PRODUCT_PACKAGES, and the build will
+// not notice/complain, unless you opt-into enforcement via $(call enforce-product-packages-exist).
+// Opting into the enforcement is difficult in some cases, because a package exists on some source
+// trees but not on others. removed_package is an intermediate solution that allows you to remove
+// a package and still get an error if it remains in PRODUCT_PACKAGES somewhere.
+func removedPackageModuleFactory() Module {
+	m := &removedPackageModule{}
+	InitAndroidModule(m)
+	m.AddProperties(&m.properties)
+	return m
+}
+
+var removedPackageRule = pctx.AndroidStaticRule("removed_package", blueprint.RuleParams{
+	Command: "echo $message && false",
+}, "message")
+
+func (m *removedPackageModule) GenerateAndroidBuildActions(ctx ModuleContext) {
+	// Unchecked module so that checkbuild doesn't fail
+	ctx.UncheckedModule()
+
+	out := PathForModuleOut(ctx, "out.txt")
+	message := fmt.Sprintf("%s has been removed, and can no longer be used.", ctx.ModuleName())
+	if m.properties.Message != nil {
+		message = *m.properties.Message
+	}
+	ctx.Build(pctx, BuildParams{
+		Rule:   removedPackageRule,
+		Output: out,
+		Args: map[string]string{
+			"message": proptools.ShellEscape(message),
+		},
+	})
+
+	ctx.InstallFile(PathForModuleInstall(ctx, "removed_module"), ctx.ModuleName(), out)
+}
diff --git a/android/variable.go b/android/variable.go
index 3cf66ea..a60cad5 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -532,7 +532,8 @@
 	OdmPropFiles       []string `json:",omitempty"`
 	VendorPropFiles    []string `json:",omitempty"`
 
-	EnableUffdGc *string `json:",omitempty"`
+	EnableUffdGc       *string `json:",omitempty"`
+	BoardKernelVersion *string `json:",omitempty"`
 
 	BoardAvbEnable                         *bool    `json:",omitempty"`
 	BoardAvbSystemAddHashtreeFooterArgs    []string `json:",omitempty"`
diff --git a/dexpreopt/config.go b/dexpreopt/config.go
index e3804e5..ee23b51 100644
--- a/dexpreopt/config.go
+++ b/dexpreopt/config.go
@@ -718,6 +718,16 @@
 	} else if global.EnableUffdGc == "default" {
 		// Generated by `build/make/core/Makefile`.
 		kernelVersionFile := android.PathForOutput(ctx, "dexpreopt/kernel_version_for_uffd_gc.txt")
+		if !ctx.Config().KatiEnabled() {
+			// In soong-only mode, we need to generate the kernel_version_for_uffd_gc.txt with kernel version
+			kernelVersion := android.String(ctx.Config().ProductVariables().BoardKernelVersion)
+			if kernelVersion == "" {
+				// https://cs.android.com/android/platform/superproject/main/+/main:build/make/core/Makefile;l=5382;drc=66783fca85911af9da48d9b4f35a61b3873023e9
+				panic("BOARD_KERNEL_VERSION is not set. Build team will convert more stuff from Make to Soong to support this scenario.")
+			}
+			android.WriteFileRule(ctx, kernelVersionFile, kernelVersion)
+		}
+
 		// Determine the UFFD GC flag by the kernel version file.
 		rule := android.NewRuleBuilder(pctx, ctx)
 		rule.Command().
diff --git a/dexpreopt/dexpreopt_test.go b/dexpreopt/dexpreopt_test.go
index 7b0f51f..1f188d5 100644
--- a/dexpreopt/dexpreopt_test.go
+++ b/dexpreopt/dexpreopt_test.go
@@ -15,9 +15,10 @@
 package dexpreopt
 
 import (
-	"android/soong/android"
 	"fmt"
 	"testing"
+
+	"android/soong/android"
 )
 
 func testSystemModuleConfig(ctx android.PathContext, name string) *ModuleConfig {
@@ -403,6 +404,7 @@
 	preparers := android.GroupFixturePreparers(
 		PrepareForTestWithFakeDex2oatd,
 		PrepareForTestWithDexpreoptConfig,
+		android.FixtureModifyConfig(android.SetKatiEnabledForTests),
 		FixtureSetEnableUffdGc("default"),
 	)