Merge "Convert cpp_std to be an attribute instead of a copt."
diff --git a/bp2build/cc_library_static_conversion_test.go b/bp2build/cc_library_static_conversion_test.go
index f02ce4d..3289391 100644
--- a/bp2build/cc_library_static_conversion_test.go
+++ b/bp2build/cc_library_static_conversion_test.go
@@ -1000,55 +1000,66 @@
 			"dep/Android.bp": `
 genrule {
   name: "generated_src_other_pkg",
-  out: ["generated_src_other_pkg.cpp"],
   cmd: "nothing to see here",
 }
 
 genrule {
   name: "generated_hdr_other_pkg",
-  out: ["generated_hdr_other_pkg.cpp"],
   cmd: "nothing to see here",
 }
 
 genrule {
   name: "generated_hdr_other_pkg_x86",
-  out: ["generated_hdr_other_pkg_x86.cpp"],
+  cmd: "nothing to see here",
+}
+
+genrule {
+  name: "generated_hdr_other_pkg_android",
   cmd: "nothing to see here",
 }`,
 		},
 		blueprint: soongCcLibraryStaticPreamble + `
 genrule {
     name: "generated_src",
-    out: ["generated_src.cpp"],
     cmd: "nothing to see here",
 }
 
 genrule {
-    name: "generated_src_x86",
-    out: ["generated_src_x86.cpp"],
+    name: "generated_src_not_x86",
+    cmd: "nothing to see here",
+}
+
+genrule {
+    name: "generated_src_android",
     cmd: "nothing to see here",
 }
 
 genrule {
     name: "generated_hdr",
-    out: ["generated_hdr.h"],
     cmd: "nothing to see here",
 }
 
 cc_library_static {
-   name: "foo_static3",
-   srcs: ["common.cpp", "not-for-*.cpp"],
-   exclude_srcs: ["not-for-everything.cpp"],
-   generated_sources: ["generated_src", "generated_src_other_pkg"],
-   generated_headers: ["generated_hdr", "generated_hdr_other_pkg"],
-   arch: {
-       x86: {
-           srcs: ["for-x86.cpp"],
-           exclude_srcs: ["not-for-x86.cpp"],
-           generated_sources: ["generated_src_x86"],
-           generated_headers: ["generated_hdr_other_pkg_x86"],
-       },
-   },
+    name: "foo_static3",
+    srcs: ["common.cpp", "not-for-*.cpp"],
+    exclude_srcs: ["not-for-everything.cpp"],
+    generated_sources: ["generated_src", "generated_src_other_pkg", "generated_src_not_x86"],
+    generated_headers: ["generated_hdr", "generated_hdr_other_pkg"],
+    arch: {
+        x86: {
+          srcs: ["for-x86.cpp"],
+          exclude_srcs: ["not-for-x86.cpp"],
+          generated_headers: ["generated_hdr_other_pkg_x86"],
+          exclude_generated_sources: ["generated_src_not_x86"],
+        },
+    },
+    target: {
+        android: {
+            generated_sources: ["generated_src_android"],
+            generated_headers: ["generated_hdr_other_pkg_android"],
+        },
+    },
+
     include_build_directory: false,
 }
 `,
@@ -1063,10 +1074,18 @@
     ] + select({
         "//build/bazel/platforms/arch:x86": [
             "//dep:generated_hdr_other_pkg_x86",
-            ":generated_src_x86",
             "for-x86.cpp",
         ],
-        "//conditions:default": ["not-for-x86.cpp"],
+        "//conditions:default": [
+            ":generated_src_not_x86",
+            "not-for-x86.cpp",
+        ],
+    }) + select({
+        "//build/bazel/platforms/os:android": [
+            "//dep:generated_hdr_other_pkg_android",
+            ":generated_src_android",
+        ],
+        "//conditions:default": [],
     }),
 )`},
 	})
diff --git a/cc/bp2build.go b/cc/bp2build.go
index df938d2..543394d 100644
--- a/cc/bp2build.go
+++ b/cc/bp2build.go
@@ -260,15 +260,22 @@
 	}
 
 	// Parse srcs from an arch or OS's props value.
-	parseSrcs := func(baseCompilerProps *BaseCompilerProperties) bazel.LabelList {
+	parseSrcs := func(props *BaseCompilerProperties) (bazel.LabelList, bool) {
+		anySrcs := false
 		// Add srcs-like dependencies such as generated files.
 		// First create a LabelList containing these dependencies, then merge the values with srcs.
-		generatedHdrsAndSrcs := baseCompilerProps.Generated_headers
-		generatedHdrsAndSrcs = append(generatedHdrsAndSrcs, baseCompilerProps.Generated_sources...)
-		generatedHdrsAndSrcsLabelList := android.BazelLabelForModuleDeps(ctx, generatedHdrsAndSrcs)
+		generatedHdrsAndSrcs := props.Generated_headers
+		generatedHdrsAndSrcs = append(generatedHdrsAndSrcs, props.Generated_sources...)
+		generatedHdrsAndSrcsLabelList := android.BazelLabelForModuleDepsExcludes(ctx, generatedHdrsAndSrcs, props.Exclude_generated_sources)
+		if len(generatedHdrsAndSrcs) > 0 || len(props.Exclude_generated_sources) > 0 {
+			anySrcs = true
+		}
 
-		allSrcsLabelList := android.BazelLabelForModuleSrcExcludes(ctx, baseCompilerProps.Srcs, baseCompilerProps.Exclude_srcs)
-		return bazel.AppendBazelLabelLists(allSrcsLabelList, generatedHdrsAndSrcsLabelList)
+		allSrcsLabelList := android.BazelLabelForModuleSrcExcludes(ctx, props.Srcs, props.Exclude_srcs)
+		if len(props.Srcs) > 0 || len(props.Exclude_srcs) > 0 {
+			anySrcs = true
+		}
+		return bazel.AppendBazelLabelLists(allSrcsLabelList, generatedHdrsAndSrcsLabelList), anySrcs
 	}
 
 	archVariantCompilerProps := module.GetArchVariantProperties(ctx, &BaseCompilerProperties{})
@@ -277,8 +284,7 @@
 			if baseCompilerProps, ok := props.(*BaseCompilerProperties); ok {
 				// If there's arch specific srcs or exclude_srcs, generate a select entry for it.
 				// TODO(b/186153868): do this for OS specific srcs and exclude_srcs too.
-				if len(baseCompilerProps.Srcs) > 0 || len(baseCompilerProps.Exclude_srcs) > 0 {
-					srcsList := parseSrcs(baseCompilerProps)
+				if srcsList, ok := parseSrcs(baseCompilerProps); ok {
 					srcs.SetSelectValue(axis, config, srcsList)
 				}
 
diff --git a/java/genrule.go b/java/genrule.go
index e0a9c8f..16743b3 100644
--- a/java/genrule.go
+++ b/java/genrule.go
@@ -64,6 +64,7 @@
 	module := genrule.NewGenRule()
 
 	android.InitAndroidArchModule(module, android.HostAndDeviceSupported, android.MultilibCommon)
+	android.InitDefaultableModule(module)
 
 	return module
 }
@@ -76,6 +77,7 @@
 	module := genrule.NewGenRule()
 
 	android.InitAndroidArchModule(module, android.HostSupported, android.MultilibCommon)
+	android.InitDefaultableModule(module)
 
 	return module
 }
diff --git a/java/sdk.go b/java/sdk.go
index d1b899e..80f2d6a 100644
--- a/java/sdk.go
+++ b/java/sdk.go
@@ -370,7 +370,7 @@
 			"frameworks-base-api-current.txt",
 			"frameworks-base-api-system-current.txt",
 			"frameworks-base-api-module-lib-current.txt",
-			"services-system-server-current.txt",
+			"frameworks-base-api-system-server-current.txt",
 		}
 		count := 0
 		ctx.VisitAllModules(func(module android.Module) {
diff --git a/rust/rust.go b/rust/rust.go
index b9afc7f..93dbd00 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -130,9 +130,10 @@
 	// Minimum sdk version that the artifact should support when it runs as part of mainline modules(APEX).
 	Min_sdk_version *string
 
-	PreventInstall bool
-	HideFromMake   bool
-	Installable    *bool
+	HideFromMake   bool `blueprint:"mutated"`
+	PreventInstall bool `blueprint:"mutated"`
+
+	Installable *bool
 }
 
 type Module struct {
@@ -177,8 +178,8 @@
 	mod.Properties.HideFromMake = true
 }
 
-func (c *Module) HiddenFromMake() bool {
-	return c.Properties.HideFromMake
+func (mod *Module) HiddenFromMake() bool {
+	return mod.Properties.HideFromMake
 }
 
 func (mod *Module) SanitizePropDefined() bool {
@@ -526,10 +527,6 @@
 	return mod.Properties.PreventInstall
 }
 
-func (mod *Module) HideFromMake() {
-	mod.Properties.HideFromMake = true
-}
-
 func (mod *Module) MarkAsCoverageVariant(coverage bool) {
 	mod.coverage.Properties.IsCoverageVariant = coverage
 }
@@ -898,8 +895,24 @@
 		}
 
 		apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
-		if mod.installable(apexInfo) {
+		if !proptools.BoolDefault(mod.Installable(), mod.EverInstallable()) {
+			// If the module has been specifically configure to not be installed then
+			// hide from make as otherwise it will break when running inside make as the
+			// output path to install will not be specified. Not all uninstallable
+			// modules can be hidden from make as some are needed for resolving make
+			// side dependencies.
+			mod.HideFromMake()
+		} else if !mod.installable(apexInfo) {
+			mod.SkipInstall()
+		}
+
+		// Still call install though, the installs will be stored as PackageSpecs to allow
+		// using the outputs in a genrule.
+		if mod.OutputFile().Valid() {
 			mod.compiler.install(ctx)
+			if ctx.Failed() {
+				return
+			}
 		}
 
 		ctx.Phony("rust", ctx.RustModule().OutputFile().Path())
diff --git a/ui/build/config.go b/ui/build/config.go
index 5cd5c65..7837cc4 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -83,6 +83,8 @@
 
 	// Set by multiproduct_kati
 	emptyNinjaFile bool
+
+	metricsUploader string
 }
 
 const srcDirFileCheck = "build/soong/root.bp"
@@ -237,7 +239,8 @@
 	// Precondition: the current directory is the top of the source tree
 	checkTopDir(ctx)
 
-	if srcDir := absPath(ctx, "."); strings.ContainsRune(srcDir, ' ') {
+	srcDir := absPath(ctx, ".")
+	if strings.ContainsRune(srcDir, ' ') {
 		ctx.Println("You are building in a directory whose absolute path contains a space character:")
 		ctx.Println()
 		ctx.Printf("%q\n", srcDir)
@@ -245,6 +248,8 @@
 		ctx.Fatalln("Directory names containing spaces are not supported")
 	}
 
+	ret.metricsUploader = GetMetricsUploader(srcDir, ret.environ)
+
 	if outDir := ret.OutDir(); strings.ContainsRune(outDir, ' ') {
 		ctx.Println("The absolute path of your output directory ($OUT_DIR) contains a space character:")
 		ctx.Println()
@@ -1246,10 +1251,7 @@
 }
 
 func (c *configImpl) MetricsUploaderApp() string {
-	if p, ok := c.environ.Get("ANDROID_ENABLE_METRICS_UPLOAD"); ok {
-		return p
-	}
-	return ""
+	return c.metricsUploader
 }
 
 // LogsDir returns the logs directory where build log and metrics
@@ -1277,3 +1279,14 @@
 func (c *configImpl) EmptyNinjaFile() bool {
 	return c.emptyNinjaFile
 }
+
+func GetMetricsUploader(topDir string, env *Environment) string {
+	if p, ok := env.Get("METRICS_UPLOADER"); ok {
+		metricsUploader := filepath.Join(topDir, p)
+		if _, err := os.Stat(metricsUploader); err == nil {
+			return metricsUploader
+		}
+	}
+
+	return ""
+}
diff --git a/ui/build/config_test.go b/ui/build/config_test.go
index 03d304e..e293275 100644
--- a/ui/build/config_test.go
+++ b/ui/build/config_test.go
@@ -1122,3 +1122,65 @@
 		})
 	}
 }
+
+func TestGetMetricsUploaderApp(t *testing.T) {
+
+	metricsUploaderDir := "metrics_uploader_dir"
+	metricsUploaderBinary := "metrics_uploader_binary"
+	metricsUploaderPath := filepath.Join(metricsUploaderDir, metricsUploaderBinary)
+	tests := []struct {
+		description string
+		environ     Environment
+		createFiles bool
+		expected    string
+	}{{
+		description: "Uploader binary exist",
+		environ:     Environment{"METRICS_UPLOADER=" + metricsUploaderPath},
+		createFiles: true,
+		expected:    metricsUploaderPath,
+	}, {
+		description: "Uploader binary not exist",
+		environ:     Environment{"METRICS_UPLOADER=" + metricsUploaderPath},
+		createFiles: false,
+		expected:    "",
+	}, {
+		description: "Uploader binary variable not set",
+		createFiles: true,
+		expected:    "",
+	}}
+
+	for _, tt := range tests {
+		t.Run(tt.description, func(t *testing.T) {
+			defer logger.Recover(func(err error) {
+				t.Fatalf("got unexpected error: %v", err)
+			})
+
+			// Create the root source tree.
+			topDir, err := ioutil.TempDir("", "")
+			if err != nil {
+				t.Fatalf("failed to create temp dir: %v", err)
+			}
+			defer os.RemoveAll(topDir)
+
+			expected := tt.expected
+			if len(expected) > 0 {
+				expected = filepath.Join(topDir, expected)
+			}
+
+			if tt.createFiles {
+				if err := os.MkdirAll(filepath.Join(topDir, metricsUploaderDir), 0755); err != nil {
+					t.Errorf("failed to create %s directory: %v", metricsUploaderDir, err)
+				}
+				if err := ioutil.WriteFile(filepath.Join(topDir, metricsUploaderPath), []byte{}, 0644); err != nil {
+					t.Errorf("failed to create file %s: %v", expected, err)
+				}
+			}
+
+			actual := GetMetricsUploader(topDir, &tt.environ)
+
+			if actual != expected {
+				t.Errorf("expecting: %s, actual: %s", expected, actual)
+			}
+		})
+	}
+}
diff --git a/ui/build/context.go b/ui/build/context.go
index f5e987e..4a4352c 100644
--- a/ui/build/context.go
+++ b/ui/build/context.go
@@ -71,9 +71,9 @@
 		realTime := end - begin
 		c.Metrics.SetTimeMetrics(
 			soong_metrics_proto.PerfInfo{
-				Desc:      &desc,
-				Name:      &name,
-				StartTime: &begin,
-				RealTime:  &realTime})
+				Description: &desc,
+				Name:        &name,
+				StartTime:   &begin,
+				RealTime:    &realTime})
 	}
 }
diff --git a/ui/build/upload.go b/ui/build/upload.go
index 55ada33..687f519 100644
--- a/ui/build/upload.go
+++ b/ui/build/upload.go
@@ -70,12 +70,11 @@
 	return metricsFiles
 }
 
-// UploadMetrics uploads a set of metrics files to a server for analysis. An
-// uploader full path is specified in ANDROID_ENABLE_METRICS_UPLOAD environment
-// variable in order to upload the set of metrics files. The metrics files are
-// first copied to a temporary directory and the uploader is then executed in
-// the background to allow the user/system to continue working. Soong communicates
-// to the uploader through the upload_proto raw protobuf file.
+// UploadMetrics uploads a set of metrics files to a server for analysis.
+// The metrics files are first copied to a temporary directory
+// and the uploader is then executed in the background to allow the user/system
+// to continue working. Soong communicates to the uploader through the
+// upload_proto raw protobuf file.
 func UploadMetrics(ctx Context, config Config, simpleOutput bool, buildStarted time.Time, paths ...string) {
 	ctx.BeginTrace(metrics.RunSetupTool, "upload_metrics")
 	defer ctx.EndTrace()
diff --git a/ui/build/upload_test.go b/ui/build/upload_test.go
index b740c11..764a1e1 100644
--- a/ui/build/upload_test.go
+++ b/ui/build/upload_test.go
@@ -80,13 +80,10 @@
 		createFiles bool
 		files       []string
 	}{{
-		description: "ANDROID_ENABLE_METRICS_UPLOAD not set",
-	}, {
-		description: "no metrics files to upload",
-		uploader:    "fake",
+		description: "no metrics uploader",
 	}, {
 		description: "non-existent metrics files no upload",
-		uploader:    "fake",
+		uploader:    "echo",
 		files:       []string{"metrics_file_1", "metrics_file_2", "metrics_file_3"},
 	}, {
 		description: "trigger upload",
@@ -137,9 +134,9 @@
 			config := Config{&configImpl{
 				environ: &Environment{
 					"OUT_DIR=" + outDir,
-					"ANDROID_ENABLE_METRICS_UPLOAD=" + tt.uploader,
 				},
-				buildDateTime: strconv.FormatInt(time.Now().UnixNano()/int64(time.Millisecond), 10),
+				buildDateTime:   strconv.FormatInt(time.Now().UnixNano()/int64(time.Millisecond), 10),
+				metricsUploader: tt.uploader,
 			}}
 
 			UploadMetrics(ctx, config, false, time.Now(), metricsFiles...)
@@ -192,9 +189,10 @@
 
 			config := Config{&configImpl{
 				environ: &Environment{
-					"ANDROID_ENABLE_METRICS_UPLOAD=fake",
 					"OUT_DIR=/bad",
-				}}}
+				},
+				metricsUploader: "echo",
+			}}
 
 			UploadMetrics(ctx, config, true, time.Now(), metricsFile)
 			t.Errorf("got nil, expecting %q as a failure", tt.expectedErr)
diff --git a/ui/metrics/event.go b/ui/metrics/event.go
index c3367e3..ebe664f 100644
--- a/ui/metrics/event.go
+++ b/ui/metrics/event.go
@@ -69,7 +69,7 @@
 func (e event) perfInfo() soong_metrics_proto.PerfInfo {
 	realTime := uint64(_now().Sub(e.start).Nanoseconds())
 	return soong_metrics_proto.PerfInfo{
-		Desc:                  proto.String(e.desc),
+		Description:           proto.String(e.desc),
 		Name:                  proto.String(e.name),
 		StartTime:             proto.Uint64(uint64(e.start.UnixNano())),
 		RealTime:              proto.Uint64(realTime),
diff --git a/ui/metrics/metrics.go b/ui/metrics/metrics.go
index ccf9bd8..f1bb862 100644
--- a/ui/metrics/metrics.go
+++ b/ui/metrics/metrics.go
@@ -25,16 +25,11 @@
 // that captures the metrics and is them added as a perfInfo into the set
 // of the collected metrics. Finally, when soong_ui has finished the build,
 // the defer Dump function is invoked to store the collected metrics to the
-// raw protobuf file in the $OUT directory.
-//
-// There is one additional step that occurs after the raw protobuf file is written.
-// If the configuration environment variable ANDROID_ENABLE_METRICS_UPLOAD is
-// set with the path, the raw protobuf file is uploaded to the destination. See
-// ui/build/upload.go for more details. The filename of the raw protobuf file
-// and the list of files to be uploaded is defined in cmd/soong_ui/main.go.
-//
-// See ui/metrics/event.go for the explanation of what an event is and how
-// the metrics system is a stack based system.
+// raw protobuf file in the $OUT directory and this raw protobuf file will be
+// uploaded to the destination. See ui/build/upload.go for more details. The
+// filename of the raw protobuf file and the list of files to be uploaded is
+// defined in cmd/soong_ui/main.go. See ui/metrics/event.go for the explanation
+// of what an event is and how the metrics system is a stack based system.
 
 import (
 	"io/ioutil"
diff --git a/ui/metrics/metrics_proto/metrics.pb.go b/ui/metrics/metrics_proto/metrics.pb.go
index 80f80bc..2e530b0 100644
--- a/ui/metrics/metrics_proto/metrics.pb.go
+++ b/ui/metrics/metrics_proto/metrics.pb.go
@@ -660,7 +660,7 @@
 	unknownFields protoimpl.UnknownFields
 
 	// The description for the phase/action/part while the tool running.
-	Desc *string `protobuf:"bytes,1,opt,name=desc" json:"desc,omitempty"`
+	Description *string `protobuf:"bytes,1,opt,name=description" json:"description,omitempty"`
 	// The name for the running phase/action/part.
 	Name *string `protobuf:"bytes,2,opt,name=name" json:"name,omitempty"`
 	// The absolute start time.
@@ -709,9 +709,9 @@
 	return file_metrics_proto_rawDescGZIP(), []int{3}
 }
 
-func (x *PerfInfo) GetDesc() string {
-	if x != nil && x.Desc != nil {
-		return *x.Desc
+func (x *PerfInfo) GetDescription() string {
+	if x != nil && x.Description != nil {
+		return *x.Description
 	}
 	return ""
 }
@@ -1268,93 +1268,93 @@
 	0x6c, 0x50, 0x68, 0x79, 0x73, 0x69, 0x63, 0x61, 0x6c, 0x4d, 0x65, 0x6d, 0x6f, 0x72, 0x79, 0x12,
 	0x25, 0x0a, 0x0e, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, 0x62, 0x6c, 0x65, 0x5f, 0x63, 0x70, 0x75,
 	0x73, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0d, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, 0x62,
-	0x6c, 0x65, 0x43, 0x70, 0x75, 0x73, 0x22, 0xf3, 0x01, 0x0a, 0x08, 0x50, 0x65, 0x72, 0x66, 0x49,
-	0x6e, 0x66, 0x6f, 0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73, 0x63, 0x18, 0x01, 0x20, 0x01, 0x28,
-	0x09, 0x52, 0x04, 0x64, 0x65, 0x73, 0x63, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18,
-	0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x1d, 0x0a, 0x0a, 0x73,
-	0x74, 0x61, 0x72, 0x74, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x04, 0x52,
-	0x09, 0x73, 0x74, 0x61, 0x72, 0x74, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x1b, 0x0a, 0x09, 0x72, 0x65,
-	0x61, 0x6c, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x04, 0x52, 0x08, 0x72,
-	0x65, 0x61, 0x6c, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x21, 0x0a, 0x0a, 0x6d, 0x65, 0x6d, 0x6f, 0x72,
-	0x79, 0x5f, 0x75, 0x73, 0x65, 0x18, 0x05, 0x20, 0x01, 0x28, 0x04, 0x42, 0x02, 0x18, 0x01, 0x52,
-	0x09, 0x6d, 0x65, 0x6d, 0x6f, 0x72, 0x79, 0x55, 0x73, 0x65, 0x12, 0x60, 0x0a, 0x17, 0x70, 0x72,
-	0x6f, 0x63, 0x65, 0x73, 0x73, 0x65, 0x73, 0x5f, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65,
-	0x5f, 0x69, 0x6e, 0x66, 0x6f, 0x18, 0x06, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x28, 0x2e, 0x73, 0x6f,
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 }
 
 var (
diff --git a/ui/metrics/metrics_proto/metrics.proto b/ui/metrics/metrics_proto/metrics.proto
index ec8f36b..db0a14a 100644
--- a/ui/metrics/metrics_proto/metrics.proto
+++ b/ui/metrics/metrics_proto/metrics.proto
@@ -139,7 +139,7 @@
 
 message PerfInfo {
   // The description for the phase/action/part while the tool running.
-  optional string desc = 1;
+  optional string description = 1;
 
   // The name for the running phase/action/part.
   optional string name = 2;