1 files changed, 23 insertions, 4 deletions

diff --git a/rust/compiler.go b/rust/compiler.go
index 6b3ccfcfa..7bd9af4a8 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -65,7 +65,11 @@ const (
 )
 
 type BaseCompilerProperties struct {
-	// path to the source file that is the main entry point of the program (e.g. main.rs or lib.rs)
+	// path to the source file that is the main entry point of the program (e.g. main.rs or lib.rs).
+	// Only a single source file can be defined. Modules which generate source can be included by prefixing
+	// the module name with ":", for example ":libfoo_bindgen"
+	//
+	// If no source file is defined, a single generated source module can be defined to be used as the main source.
 	Srcs []string `android:"path,arch_variant"`
 
 	// name of the lint set that should be used to validate this module.
@@ -362,7 +366,9 @@ func bionicDeps(ctx DepsContext, deps Deps, static bool) Deps {
 	} else {
 		deps.SharedLibs = append(deps.SharedLibs, bionicLibs...)
 	}
-
+	if ctx.RustModule().StaticExecutable() {
+		deps.StaticLibs = append(deps.StaticLibs, "libunwind")
+	}
 	if libRuntimeBuiltins := config.BuiltinsRuntimeLibrary(ctx.toolchain()); libRuntimeBuiltins != "" {
 		deps.StaticLibs = append(deps.StaticLibs, libRuntimeBuiltins)
 	}
@@ -391,8 +397,15 @@ func (compiler *baseCompiler) installDir(ctx ModuleContext) android.InstallPath
 	}
 
 	if compiler.location == InstallInData && ctx.RustModule().UseVndk() {
-		dir = filepath.Join(dir, "vendor")
+		if ctx.RustModule().InProduct() {
+			dir = filepath.Join(dir, "product")
+		} else if ctx.RustModule().InVendor() {
+			dir = filepath.Join(dir, "vendor")
+		} else {
+			ctx.ModuleErrorf("Unknown data+VNDK installation kind")
+		}
 	}
+
 	return android.PathForModuleInstall(ctx, dir, compiler.subDir,
 		compiler.relativeInstallPath(), compiler.relative)
 }
@@ -436,12 +449,18 @@ func srcPathFromModuleSrcs(ctx ModuleContext, srcs []string) (android.Path, andr
 			srcIndex = i
 		}
 	}
-	if numSrcs != 1 {
+	if numSrcs > 1 {
 		ctx.PropertyErrorf("srcs", incorrectSourcesError)
 	}
+
+	// If a main source file is not provided we expect only a single SourceProvider module to be defined
+	// within srcs, with the expectation that the first source it provides is the entry point.
 	if srcIndex != 0 {
 		ctx.PropertyErrorf("srcs", "main source file must be the first in srcs")
+	} else if numSrcs > 1 {
+		ctx.PropertyErrorf("srcs", "only a single generated source module can be defined without a main source file.")
 	}
+
 	paths := android.PathsForModuleSrc(ctx, srcs)
 	return paths[srcIndex], paths[1:]
 }