Build native libraries used by layoutlib.

Bug: 303904212
Test: m layoutlib dist; CIs
Change-Id: Id77cba97b2f66997431beb78ecc9d9b74b64b803

cc/binary.go

@@ -445,6 +445,10 @@ func (binary *binaryDecorator) unstrippedOutputFilePath() android.Path {
 	return binary.unstrippedOutputFile
 }
 
+func (binary *binaryDecorator) strippedAllOutputFilePath() android.Path {
+	panic("Not implemented.")
+}
+
 func (binary *binaryDecorator) setSymlinkList(ctx ModuleContext) {
 	for _, symlink := range binary.Properties.Symlinks {
 		binary.symlinks = append(binary.symlinks,

cc/builder.go

@@ -1052,6 +1052,9 @@ func transformStrip(ctx android.ModuleContext, inputFile android.Path,
 	if flags.StripKeepSymbolsAndDebugFrame {
 		args += " --keep-symbols-and-debug-frame"
 	}
+	if ctx.Windows() {
+		args += " --windows"
+	}
 
 	ctx.Build(pctx, android.BuildParams{
 		Rule:        strip,

cc/cc.go

@@ -617,6 +617,7 @@ type linker interface {
 	link(ctx ModuleContext, flags Flags, deps PathDeps, objs Objects) android.Path
 	appendLdflags([]string)
 	unstrippedOutputFilePath() android.Path
+	strippedAllOutputFilePath() android.Path
 
 	nativeCoverage() bool
 	coverageOutputFilePath() android.OptionalPath
@@ -3634,6 +3635,11 @@ func (c *Module) OutputFiles(tag string) (android.Paths, error) {
 			return android.PathsIfNonNil(c.linker.unstrippedOutputFilePath()), nil
 		}
 		return nil, nil
+	case "stripped_all":
+		if c.linker != nil {
+			return android.PathsIfNonNil(c.linker.strippedAllOutputFilePath()), nil
+		}
+		return nil, nil
 	default:
 		return nil, fmt.Errorf("unsupported module reference tag %q", tag)
 	}

cc/cc_test.go

@@ -4758,3 +4758,29 @@ func TestCcBuildBrokenClangCFlags(t *testing.T) {
 		})
 	}
 }
+
+func TestStrippedAllOutputFile(t *testing.T) {
+	t.Parallel()
+	bp := `
+		cc_library {
+			name: "test_lib",
+			srcs: ["test_lib.cpp"],
+			dist: {
+				targets: [ "dist_target" ],
+				tag: "stripped_all",
+			}
+		}
+ `
+	config := TestConfig(t.TempDir(), android.Android, nil, bp, nil)
+	ctx := testCcWithConfig(t, config)
+	module := ctx.ModuleForTests("test_lib", "android_arm_armv7-a-neon_shared").Module()
+	outputFile, err := module.(android.OutputFileProducer).OutputFiles("stripped_all")
+	if err != nil {
+		t.Errorf("Expected cc_library to produce output files, error: %s", err)
+		return
+	}
+	if !strings.HasSuffix(outputFile.Strings()[0], "/stripped_all/test_lib.so") {
+		t.Errorf("Unexpected output file: %s", outputFile.Strings()[0])
+		return
+	}
+}

cc/library.go

@@ -400,6 +400,8 @@ type libraryDecorator struct {
 
 	// Location of the linked, unstripped library for shared libraries
 	unstrippedOutputFile android.Path
+	// Location of the linked, stripped library for shared libraries, strip: "all"
+	strippedAllOutputFile android.Path
 
 	// Location of the file that should be copied to dist dir when requested
 	distFile android.Path
@@ -1201,6 +1203,17 @@ func (library *libraryDecorator) linkShared(ctx ModuleContext,
 		}
 	}
 
+	// Generate an output file for dist as if strip: "all" is set on the module.
+	// Currently this is for layoutlib release process only.
+	for _, dist := range ctx.Module().(*Module).Dists() {
+		if dist.Tag != nil && *dist.Tag == "stripped_all" {
+			strippedAllOutputFile := android.PathForModuleOut(ctx, "stripped_all", fileName)
+			transformStrip(ctx, outputFile, strippedAllOutputFile, StripFlags{Toolchain: flags.Toolchain})
+			library.strippedAllOutputFile = strippedAllOutputFile
+			break
+		}
+	}
+
 	sharedLibs := deps.EarlySharedLibs
 	sharedLibs = append(sharedLibs, deps.SharedLibs...)
 	sharedLibs = append(sharedLibs, deps.LateSharedLibs...)
@@ -1262,6 +1275,10 @@ func (library *libraryDecorator) unstrippedOutputFilePath() android.Path {
 	return library.unstrippedOutputFile
 }
 
+func (library *libraryDecorator) strippedAllOutputFilePath() android.Path {
+	return library.strippedAllOutputFile
+}
+
 func (library *libraryDecorator) disableStripping() {
 	library.stripper.StripProperties.Strip.None = BoolPtr(true)
 }

cc/object.go

@@ -219,6 +219,10 @@ func (object *objectLinker) unstrippedOutputFilePath() android.Path {
 	return nil
 }
 
+func (object *objectLinker) strippedAllOutputFilePath() android.Path {
+	panic("Not implemented.")
+}
+
 func (object *objectLinker) nativeCoverage() bool {
 	return true
 }

scripts/strip.sh

@@ -29,6 +29,7 @@
 #   --keep-symbols
 #   --keep-symbols-and-debug-frame
 #   --remove-build-id
+#   --windows
 
 set -o pipefail
 
@@ -43,6 +44,7 @@ Options:
         --keep-symbols                  Keep symbols in out-file
         --keep-symbols-and-debug-frame  Keep symbols and .debug_frame in out-file
         --remove-build-id               Remove the gnu build-id section in out-file
+        --windows                       Input file is Windows DLL or executable
 EOF
     exit 1
 }
@@ -50,7 +52,11 @@ EOF
 do_strip() {
     # GNU strip --strip-all does not strip .ARM.attributes,
     # so we tell llvm-strip to keep it too.
-    "${CLANG_BIN}/llvm-strip" --strip-all --keep-section=.ARM.attributes "${infile}" -o "${outfile}.tmp"
+    local keep_section=--keep-section=.ARM.attributes
+    if [ -n "${windows}" ]; then
+      keep_section=
+    fi
+    "${CLANG_BIN}/llvm-strip" --strip-all ${keep_section} "${infile}" -o "${outfile}.tmp"
 }
 
 do_strip_keep_symbols_and_debug_frame() {
@@ -149,6 +155,7 @@ while getopts $OPTSTRING opt; do
                 keep-symbols) keep_symbols=true ;;
                 keep-symbols-and-debug-frame) keep_symbols_and_debug_frame=true ;;
                 remove-build-id) remove_build_id=true ;;
+                windows) windows=true ;;
                 *) echo "Unknown option --${OPTARG}"; usage ;;
             esac;;
         ?) usage ;;