Ensure sscp jars get copied to $OUT/soong/system_server_dexjars

(This was missed in aosp/2876756, which copied only the bcp jars)

This hardcoded location is used by dex2oat to compile the dexpreopt
artifacts. The copy rules are currently generated by java_(sdk)_library
for source builds, and their prebuilt counterparts in prebuilt builds.

After this change, the copy rule will be bifurcated between source and
prebuilt builds
1. For source builds, it will come from java_(sdk)_library
2. For prebuilt builds, it will come from the top-level prebuilt apex.
   Since there can be multiple prebuilt apexes in trunk stable,
   HideFromMake will be used to determine which deapexed jar to copy.

The bifurfaction is expected to be temporary. It is needed for now since
the `apex_contributions` which will be used for source vs prebuilt
selection have not been populated completely.

Test: Added a unit test
Test: Presubmits
Test: git_master-art-host:
art-gtest (https://android-build.corp.google.com/builds/abtd/run/L40800030001459791)
Test: git_main:art_standalone_tests
(https://android-build.corp.google.com/builds/abtd/run/L09000030001463855)

Bug: 308790457

Change-Id: I3105d3b3a7e5c41cb601d07806f4ea483a61b50a

apex/apex_test.go

@@ -11537,6 +11537,17 @@ func TestBootDexJarsMultipleApexPrebuilts(t *testing.T) {
 		android.AssertStringMatches(t, "Could not find the correct boot dex jar in monolithic hiddenapi flags generation command", monolithicHiddenapiFlagsCmd, "--boot-dex="+expectedBootJar)
 	}
 
+	// Check that system server jars is copied to out/soong/system_server_dexjars. This hardcoded location is used by dexpreopt
+	checkSystemServerJarOnHost := func(t *testing.T, ctx *android.TestContext, m, libName, expectedSystemServerJarPath string) {
+		variation := "android_common_com.android.foo"
+		if m == "com.android.foo" {
+			m = libName // for source builds, the cp rule is still generated by the java_library module
+			variation = "android_common_apex10000"
+		}
+		output := ctx.ModuleForTests(m, variation).MaybeOutput("system_server_dexjars/" + libName + ".jar")
+		android.AssertStringListContains(t, libName+" is expected to be copied to out/soong/system_server_dexjars/ from ", output.Implicits.Strings(), expectedSystemServerJarPath)
+	}
+
 	bp := `
 		// Source APEX.
 
@@ -11560,6 +11571,24 @@ func TestBootDexJarsMultipleApexPrebuilts(t *testing.T) {
 			},
 		}
 
+		java_library {
+			name: "service-foo",
+			srcs: ["foo.java"],
+			installable: true,
+			apex_available: [
+				"com.android.foo",
+			],
+		}
+
+		systemserverclasspath_fragment {
+			name: "foo-systemserverclasspath-fragment",
+			contents: ["service-foo"],
+			apex_available: [
+				"com.android.foo",
+			],
+		}
+
+
 		apex_key {
 			name: "com.android.foo.key",
 			public_key: "com.android.foo.avbpubkey",
@@ -11570,18 +11599,16 @@ func TestBootDexJarsMultipleApexPrebuilts(t *testing.T) {
 			name: "com.android.foo",
 			key: "com.android.foo.key",
 			bootclasspath_fragments: ["foo-bootclasspath-fragment"],
+			systemserverclasspath_fragments: ["foo-systemserverclasspath-fragment"],
 			updatable: false,
 		}
 
 		// Prebuilt APEX.
 
-		java_sdk_library_import {
+		java_import {
 			name: "framework-foo",
-			public: {
-				jars: ["foo.jar"],
-			},
+			jars: ["foo.jar"],
 			apex_available: ["com.android.foo"],
-			shared_library: false,
 		}
 
 		prebuilt_bootclasspath_fragment {
@@ -11599,11 +11626,27 @@ func TestBootDexJarsMultipleApexPrebuilts(t *testing.T) {
 			],
 		}
 
+		java_import {
+			name: "service-foo",
+			jars: ["foo.jar"],
+			apex_available: ["com.android.foo"],
+		}
+
+		prebuilt_systemserverclasspath_fragment {
+			name: "foo-systemserverclasspath-fragment",
+			contents: ["service-foo"],
+			apex_available: [
+				"com.android.foo",
+			],
+		}
+
+
 		prebuilt_apex {
 			name: "com.android.foo",
 			apex_name: "com.android.foo",
 			src: "com.android.foo-arm.apex",
 			exported_bootclasspath_fragments: ["foo-bootclasspath-fragment"],
+			exported_systemserverclasspath_fragments: ["foo-systemserverclasspath-fragment"],
 		}
 
 		// Another Prebuilt ART APEX
@@ -11612,48 +11655,41 @@ func TestBootDexJarsMultipleApexPrebuilts(t *testing.T) {
 			apex_name: "com.android.foo", // Used to determine the API domain
 			src: "com.android.foo-arm.apex",
 			exported_bootclasspath_fragments: ["foo-bootclasspath-fragment"],
+			exported_systemserverclasspath_fragments: ["foo-systemserverclasspath-fragment"],
 		}
 
 		// APEX contribution modules
 
 		apex_contributions {
-			name: "foo.source.contributions",
+			name: "foo.contributions",
 			api_domain: "com.android.foo",
-			contents: ["com.android.foo"],
-		}
-
-		apex_contributions {
-			name: "foo.prebuilt.contributions",
-			api_domain: "com.android.foo",
-			contents: ["prebuilt_com.android.foo"],
-		}
-
-		apex_contributions {
-			name: "foo.prebuilt.v2.contributions",
-			api_domain: "com.android.foo",
-			contents: ["com.android.foo.v2"], // prebuilt_ prefix is missing because of prebuilt_rename mutator
+			contents: ["%v"],
 		}
 	`
 
 	testCases := []struct {
-		desc                      string
-		selectedApexContributions string
-		expectedBootJar           string
+		desc                    string
+		selectedApex            string
+		expectedBootJar         string
+		expectedSystemServerJar string
 	}{
 		{
-			desc:                      "Source apex com.android.foo is selected, bootjar should come from source java library",
-			selectedApexContributions: "foo.source.contributions",
-			expectedBootJar:           "out/soong/.intermediates/foo-bootclasspath-fragment/android_common_apex10000/hiddenapi-modular/encoded/framework-foo.jar",
+			desc:                    "Source apex com.android.foo is selected, bootjar should come from source java library",
+			selectedApex:            "com.android.foo",
+			expectedBootJar:         "out/soong/.intermediates/foo-bootclasspath-fragment/android_common_apex10000/hiddenapi-modular/encoded/framework-foo.jar",
+			expectedSystemServerJar: "out/soong/.intermediates/service-foo/android_common_apex10000/aligned/service-foo.jar",
 		},
 		{
-			desc:                      "Prebuilt apex prebuilt_com.android.foo is selected, profile should come from .prof deapexed from the prebuilt",
-			selectedApexContributions: "foo.prebuilt.contributions",
-			expectedBootJar:           "out/soong/.intermediates/prebuilt_com.android.foo.deapexer/android_common/deapexer/javalib/framework-foo.jar",
+			desc:                    "Prebuilt apex prebuilt_com.android.foo is selected, profile should come from .prof deapexed from the prebuilt",
+			selectedApex:            "prebuilt_com.android.foo",
+			expectedBootJar:         "out/soong/.intermediates/prebuilt_com.android.foo.deapexer/android_common/deapexer/javalib/framework-foo.jar",
+			expectedSystemServerJar: "out/soong/.intermediates/prebuilt_com.android.foo.deapexer/android_common/deapexer/javalib/service-foo.jar",
 		},
 		{
-			desc:                      "Prebuilt apex prebuilt_com.android.foo.v2 is selected, profile should come from .prof deapexed from the prebuilt",
-			selectedApexContributions: "foo.prebuilt.v2.contributions",
-			expectedBootJar:           "out/soong/.intermediates/prebuilt_com.android.foo.v2.deapexer/android_common/deapexer/javalib/framework-foo.jar",
+			desc:                    "Prebuilt apex prebuilt_com.android.foo.v2 is selected, profile should come from .prof deapexed from the prebuilt",
+			selectedApex:            "com.android.foo.v2",
+			expectedBootJar:         "out/soong/.intermediates/prebuilt_com.android.foo.v2.deapexer/android_common/deapexer/javalib/framework-foo.jar",
+			expectedSystemServerJar: "out/soong/.intermediates/prebuilt_com.android.foo.v2.deapexer/android_common/deapexer/javalib/service-foo.jar",
 		},
 	}
 
@@ -11665,19 +11701,21 @@ func TestBootDexJarsMultipleApexPrebuilts(t *testing.T) {
 	for _, tc := range testCases {
 		preparer := android.GroupFixturePreparers(
 			java.FixtureConfigureApexBootJars("com.android.foo:framework-foo"),
+			dexpreopt.FixtureSetApexSystemServerJars("com.android.foo:service-foo"),
 			android.FixtureMergeMockFs(map[string][]byte{
 				"system/sepolicy/apex/com.android.foo-file_contexts": nil,
 			}),
 			android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
 				variables.BuildFlags = map[string]string{
-					"RELEASE_APEX_CONTRIBUTIONS_ADSERVICES": tc.selectedApexContributions,
+					"RELEASE_APEX_CONTRIBUTIONS_ADSERVICES": "foo.contributions",
 				}
 			}),
 		)
-		ctx := testDexpreoptWithApexes(t, bp, "", preparer, fragment)
+		ctx := testDexpreoptWithApexes(t, fmt.Sprintf(bp, tc.selectedApex), "", preparer, fragment)
 		checkBootDexJarPath(t, ctx, "framework-foo", tc.expectedBootJar)
 		checkBootJarsPackageCheck(t, ctx, tc.expectedBootJar)
 		checkBootJarsForMonolithicHiddenapi(t, ctx, tc.expectedBootJar)
+		checkSystemServerJarOnHost(t, ctx, tc.selectedApex, "service-foo", tc.expectedSystemServerJar)
 	}
 }
 

apex/prebuilt.go

@@ -201,6 +201,10 @@ func (p *prebuiltCommon) dexpreoptSystemServerJars(ctx android.ModuleContext) {
 	if !p.hasExportedDeps() {
 		return
 	}
+	// If this prebuilt apex has not been selected, return
+	if p.IsHideFromMake() {
+		return
+	}
 	// Use apex_name to determine the api domain of this prebuilt apex
 	apexName := p.ApexVariationName()
 	di, err := android.FindDeapexerProviderForModule(ctx)

dexpreopt/dexpreopt.go

@@ -229,6 +229,30 @@ func ToOdexPath(path string, arch android.ArchType) string {
 		pathtools.ReplaceExtension(filepath.Base(path), "odex"))
 }
 
+// Copy the dex'd system server to a predefined location in out/soong/system_server_dexjars
+// dex2oat will use this predefined location to generate the dexpreopt artifacts.
+func CopySystemServerJarsToPredefinedLocations(ctx android.BuilderContext, libName string, libDexPath android.Path) {
+	allSystemServerJars := GetGlobalConfig(ctx).AllSystemServerJars(ctx)
+	if !allSystemServerJars.ContainsJar(libName) {
+		// This is not a system server jar
+		return
+	}
+	if DexpreoptRunningInSoong {
+		// Copy the system server jar to a predefined location where dex2oat will find it.
+		rule := android.NewRuleBuilder(pctx, ctx)
+		dexPathHost := SystemServerDexJarHostPath(ctx, libName)
+		rule.Command().Text("mkdir -p").Flag(filepath.Dir(dexPathHost.String()))
+		rule.Command().Text("cp -f").Input(libDexPath).Output(dexPathHost)
+		rule.Build("copy "+libName+" to soong/system_server_dexjars/", "system_server_dexjars")
+	} else {
+		// For Make modules the copy rule is generated in the makefiles, not in dexpreopt.sh.
+		// This is necessary to expose the rule to Ninja, otherwise it has rules that depend on
+		// the jar (namely, dexpreopt commands for all subsequent system server jars that have
+		// this one in their class loader context), but no rule that creates it (because Ninja
+		// cannot see the rule in the generated dexpreopt.sh script).
+	}
+}
+
 func dexpreoptCommand(ctx android.BuilderContext, globalSoong *GlobalSoongConfig,
 	global *GlobalConfig, module *ModuleConfig, rule *android.RuleBuilder, archIdx int,
 	profile android.WritablePath, appImage bool, generateDM bool, productPackages android.Path) {
@@ -277,19 +301,6 @@ func dexpreoptCommand(ctx android.BuilderContext, globalSoong *GlobalSoongConfig
 			clcTarget = append(clcTarget, GetSystemServerDexLocation(ctx, global, lib))
 		}
 
-		if DexpreoptRunningInSoong {
-			// Copy the system server jar to a predefined location where dex2oat will find it.
-			dexPathHost := SystemServerDexJarHostPath(ctx, module.Name)
-			rule.Command().Text("mkdir -p").Flag(filepath.Dir(dexPathHost.String()))
-			rule.Command().Text("cp -f").Input(module.DexPath).Output(dexPathHost)
-		} else {
-			// For Make modules the copy rule is generated in the makefiles, not in dexpreopt.sh.
-			// This is necessary to expose the rule to Ninja, otherwise it has rules that depend on
-			// the jar (namely, dexpreopt commands for all subsequent system server jars that have
-			// this one in their class loader context), but no rule that creates it (because Ninja
-			// cannot see the rule in the generated dexpreopt.sh script).
-		}
-
 		clcHostString := "PCL[" + strings.Join(clcHost.Strings(), ":") + "]"
 		clcTargetString := "PCL[" + strings.Join(clcTarget, ":") + "]"
 

java/base.go

@@ -1627,6 +1627,9 @@ func (j *Module) compile(ctx android.ModuleContext, extraSrcJars, extraClasspath
 
 			// Dexpreopting
 			j.dexpreopt(ctx, dexOutputFile)
+			if !j.IsHideFromMake() {
+				dexpreopt.CopySystemServerJarsToPredefinedLocations(ctx, j.Name(), dexOutputFile)
+			}
 
 			outputFile = dexOutputFile
 		} else {

java/dexpreopt.go

@@ -274,6 +274,8 @@ func (d *Dexpreopter) DexpreoptPrebuiltApexSystemServerJars(ctx android.ModuleCo
 	// generate the rules for creating the .odex and .vdex files for this system server jar
 	dexJarFile := di.PrebuiltExportPath(ApexRootRelativePathToJavaLib(libraryName))
 	d.dexpreopt(ctx, dexJarFile)
+
+	dexpreopt.CopySystemServerJarsToPredefinedLocations(ctx, libraryName, dexJarFile)
 }
 
 func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.WritablePath) {
@@ -370,7 +372,7 @@ func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.Wr
 
 	// Full dexpreopt config, used to create dexpreopt build rules.
 	dexpreoptConfig := &dexpreopt.ModuleConfig{
-		Name:            moduleName(ctx),
+		Name:            dexJarStem, // use dexJarStem as the name of the library so that this function can be called from an apex.
 		DexLocation:     dexLocation,
 		BuildPath:       android.PathForModuleOut(ctx, "dexpreopt", dexJarStem, moduleName(ctx)+".jar").OutputPath,
 		DexPath:         dexJarFile,