Build system_server.zip in soong

For soong-only builds.

The make code was wrapped in 3 conditions: that dexpreopt was enabled,
that we're not only preopting the art boot image, and that
PRODUCT_USES_DEFAULT_ART_CONFIG is true. This code only has the first 2
of those conditions, but that's because if
PRODUCT_USES_DEFAULT_ART_CONFIG is false, dexpreopt is disabled:
https://cs.android.com/android/platform/superproject/main/+/main:build/make/core/dex_preopt_config.mk;l=9;drc=6a8fff595ba4cbb87b7e124fd630f548c5c4e2cb

Fixes: 398036389
Test: Diff'd system_server.zip before/after this change
Change-Id: Ie316c56bf07296372ed89e7ee2f0f38360fe24d7

2 files changed, 50 insertions, 0 deletions

diff --git a/dexpreopt/Android.bp b/dexpreopt/Android.bp
index 679d06627..ea3f52bd2 100644
--- a/dexpreopt/Android.bp
+++ b/dexpreopt/Android.bp
@@ -9,6 +9,7 @@ bootstrap_go_package {
         "class_loader_context.go",
         "config.go",
         "dexpreopt.go",
+        "system_server_zip.go",
         "testing.go",
     ],
     testSrcs: [
diff --git a/dexpreopt/system_server_zip.go b/dexpreopt/system_server_zip.go
new file mode 100644
index 000000000..cef847b7d
--- /dev/null
+++ b/dexpreopt/system_server_zip.go
@@ -0,0 +1,49 @@
+package dexpreopt
+
+import "android/soong/android"
+
+func init() {
+	android.InitRegistrationContext.RegisterSingletonType("system_server_zip_singleton", systemServerZipSingletonFactory)
+}
+
+func systemServerZipSingletonFactory() android.Singleton {
+	return &systemServerZipSingleton{}
+}
+
+type systemServerZipSingleton struct{}
+
+func (s *systemServerZipSingleton) GenerateBuildActions(ctx android.SingletonContext) {
+	global := GetGlobalConfig(ctx)
+	if global.DisablePreopt || global.OnlyPreoptArtBootImage {
+		return
+	}
+
+	systemServerDexjarsDir := android.PathForOutput(ctx, SystemServerDexjarsDir)
+
+	out := android.PathForOutput(ctx, "system_server.zip")
+	builder := android.NewRuleBuilder(pctx, ctx)
+	cmd := builder.Command().BuiltTool("soong_zip").
+		FlagWithOutput("-o ", out).
+		FlagWithArg("-C ", systemServerDexjarsDir.String())
+
+	for i := 0; i < global.SystemServerJars.Len(); i++ {
+		jar := global.SystemServerJars.Jar(i) + ".jar"
+		cmd.FlagWithInput("-f ", systemServerDexjarsDir.Join(ctx, jar))
+	}
+	for i := 0; i < global.StandaloneSystemServerJars.Len(); i++ {
+		jar := global.StandaloneSystemServerJars.Jar(i) + ".jar"
+		cmd.FlagWithInput("-f ", systemServerDexjarsDir.Join(ctx, jar))
+	}
+	for i := 0; i < global.ApexSystemServerJars.Len(); i++ {
+		jar := global.ApexSystemServerJars.Jar(i) + ".jar"
+		cmd.FlagWithInput("-f ", systemServerDexjarsDir.Join(ctx, jar))
+	}
+	for i := 0; i < global.ApexStandaloneSystemServerJars.Len(); i++ {
+		jar := global.ApexStandaloneSystemServerJars.Jar(i) + ".jar"
+		cmd.FlagWithInput("-f ", systemServerDexjarsDir.Join(ctx, jar))
+	}
+
+	builder.Build("system_server_zip", "building system_server.zip")
+
+	ctx.DistForGoal("droidcore", out)
+}