diff --git a/android/bazel_handler.go b/android/bazel_handler.go
index a5c4bed..415f00e 100644
--- a/android/bazel_handler.go
+++ b/android/bazel_handler.go
@@ -36,12 +36,14 @@
 
 const (
 	getAllFiles CqueryRequestType = iota
+	getCcObjectFiles
 )
 
 // Map key to describe bazel cquery requests.
 type cqueryKey struct {
 	label       string
 	requestType CqueryRequestType
+	archType    ArchType
 }
 
 type BazelContext interface {
@@ -50,7 +52,11 @@
 	// has been queued to be run later.
 
 	// Returns result files built by building the given bazel target label.
-	GetAllFiles(label string) ([]string, bool)
+	GetAllFiles(label string, archType ArchType) ([]string, bool)
+
+	// Returns object files produced by compiling the given cc-related target.
+	// Retrieves these files from Bazel's CcInfo provider.
+	GetCcObjectFiles(label string, archType ArchType) ([]string, bool)
 
 	// TODO(cparsons): Other cquery-related methods should be added here.
 	// ** End cquery methods
@@ -100,7 +106,12 @@
 	AllFiles map[string][]string
 }
 
-func (m MockBazelContext) GetAllFiles(label string) ([]string, bool) {
+func (m MockBazelContext) GetAllFiles(label string, archType ArchType) ([]string, bool) {
+	result, ok := m.AllFiles[label]
+	return result, ok
+}
+
+func (m MockBazelContext) GetCcObjectFiles(label string, archType ArchType) ([]string, bool) {
 	result, ok := m.AllFiles[label]
 	return result, ok
 }
@@ -123,8 +134,8 @@
 
 var _ BazelContext = MockBazelContext{}
 
-func (bazelCtx *bazelContext) GetAllFiles(label string) ([]string, bool) {
-	result, ok := bazelCtx.cquery(label, getAllFiles)
+func (bazelCtx *bazelContext) GetAllFiles(label string, archType ArchType) ([]string, bool) {
+	result, ok := bazelCtx.cquery(label, getAllFiles, archType)
 	if ok {
 		bazelOutput := strings.TrimSpace(result)
 		return strings.Split(bazelOutput, ", "), true
@@ -133,7 +144,21 @@
 	}
 }
 
-func (n noopBazelContext) GetAllFiles(label string) ([]string, bool) {
+func (bazelCtx *bazelContext) GetCcObjectFiles(label string, archType ArchType) ([]string, bool) {
+	result, ok := bazelCtx.cquery(label, getCcObjectFiles, archType)
+	if ok {
+		bazelOutput := strings.TrimSpace(result)
+		return strings.Split(bazelOutput, ", "), true
+	} else {
+		return nil, false
+	}
+}
+
+func (n noopBazelContext) GetAllFiles(label string, archType ArchType) ([]string, bool) {
+	panic("unimplemented")
+}
+
+func (n noopBazelContext) GetCcObjectFiles(label string, archType ArchType) ([]string, bool) {
 	panic("unimplemented")
 }
 
@@ -207,8 +232,9 @@
 // If the given request was already made (and the results are available), then
 // returns (result, true). If the request is queued but no results are available,
 // then returns ("", false).
-func (context *bazelContext) cquery(label string, requestType CqueryRequestType) (string, bool) {
-	key := cqueryKey{label, requestType}
+func (context *bazelContext) cquery(label string, requestType CqueryRequestType,
+	archType ArchType) (string, bool) {
+	key := cqueryKey{label, requestType, archType}
 	if result, ok := context.results[key]; ok {
 		return result, true
 	} else {
@@ -241,17 +267,21 @@
 		fmt.Sprintf("--platforms=%s", canonicalizeLabel("//build/bazel/platforms:generic_x86_64")))
 	cmdFlags = append(cmdFlags,
 		fmt.Sprintf("--extra_toolchains=%s", canonicalizeLabel("//prebuilts/clang/host/linux-x86:all")))
+	// Explicitly disable downloading rules (such as canonical C++ and Java rules) from the network.
+	cmdFlags = append(cmdFlags, "--experimental_repository_disable_download")
 	cmdFlags = append(cmdFlags, extraFlags...)
 
 	bazelCmd := exec.Command(context.bazelPath, cmdFlags...)
 	bazelCmd.Dir = context.workspaceDir
-	bazelCmd.Env = append(os.Environ(), "HOME="+context.homeDir, pwdPrefix())
-
+	bazelCmd.Env = append(os.Environ(), "HOME="+context.homeDir, pwdPrefix(),
+		// Disables local host detection of gcc; toolchain information is defined
+		// explicitly in BUILD files.
+		"BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1")
 	stderr := &bytes.Buffer{}
 	bazelCmd.Stderr = stderr
 
 	if output, err := bazelCmd.Output(); err != nil {
-		return "", fmt.Errorf("bazel command failed. command: [%s], error [%s]", bazelCmd, stderr)
+		return "", fmt.Errorf("bazel command failed. command: [%s], env: [%s], error [%s]", bazelCmd, bazelCmd.Env, stderr)
 	} else {
 		return string(output), nil
 	}
@@ -273,20 +303,81 @@
 }
 
 func (context *bazelContext) mainBzlFileContents() []byte {
+	// TODO(cparsons): Define configuration transitions programmatically based
+	// on available archs.
 	contents := `
 #####################################################
 # This file is generated by soong_build. Do not edit.
 #####################################################
 
+def _x86_64_transition_impl(settings, attr):
+    return {
+        "//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_x86_64",
+    }
+
+def _x86_transition_impl(settings, attr):
+    return {
+        "//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_x86",
+    }
+
+def _arm64_transition_impl(settings, attr):
+    return {
+        "//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_arm64",
+    }
+
+def _arm_transition_impl(settings, attr):
+    return {
+        "//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_arm",
+    }
+
+x86_64_transition = transition(
+    implementation = _x86_64_transition_impl,
+    inputs = [],
+    outputs = [
+        "//command_line_option:platforms",
+    ],
+)
+
+x86_transition = transition(
+    implementation = _x86_transition_impl,
+    inputs = [],
+    outputs = [
+        "//command_line_option:platforms",
+    ],
+)
+
+arm64_transition = transition(
+    implementation = _arm64_transition_impl,
+    inputs = [],
+    outputs = [
+        "//command_line_option:platforms",
+    ],
+)
+
+arm_transition = transition(
+    implementation = _arm_transition_impl,
+    inputs = [],
+    outputs = [
+        "//command_line_option:platforms",
+    ],
+)
+
 def _mixed_build_root_impl(ctx):
-    return [DefaultInfo(files = depset(ctx.files.deps))]
+    all_files = ctx.files.deps_x86_64 + ctx.files.deps_x86 + ctx.files.deps_arm64 + ctx.files.deps_arm
+    return [DefaultInfo(files = depset(all_files))]
 
 # Rule representing the root of the build, to depend on all Bazel targets that
 # are required for the build. Building this target will build the entire Bazel
 # build tree.
 mixed_build_root = rule(
     implementation = _mixed_build_root_impl,
-    attrs = {"deps" : attr.label_list()},
+    attrs = {
+        "deps_x86_64" : attr.label_list(cfg = x86_64_transition),
+        "deps_x86" : attr.label_list(cfg = x86_transition),
+        "deps_arm64" : attr.label_list(cfg = arm64_transition),
+        "deps_arm" : attr.label_list(cfg = arm_transition),
+        "_allowlist_function_transition": attr.label(default = "@bazel_tools//tools/allowlists/function_transition_allowlist"),
+    },
 )
 
 def _phony_root_impl(ctx):
@@ -317,25 +408,48 @@
 }
 
 func (context *bazelContext) mainBuildFileContents() []byte {
+	// TODO(cparsons): Map label to attribute programmatically; don't use hard-coded
+	// architecture mapping.
 	formatString := `
 # This file is generated by soong_build. Do not edit.
 load(":main.bzl", "mixed_build_root", "phony_root")
 
 mixed_build_root(name = "buildroot",
-    deps = [%s],
+    deps_x86_64 = [%s],
+    deps_x86 = [%s],
+    deps_arm64 = [%s],
+    deps_arm = [%s],
 )
 
 phony_root(name = "phonyroot",
     deps = [":buildroot"],
 )
 `
-	var buildRootDeps []string = nil
+	var deps_x86_64 []string = nil
+	var deps_x86 []string = nil
+	var deps_arm64 []string = nil
+	var deps_arm []string = nil
 	for val, _ := range context.requests {
-		buildRootDeps = append(buildRootDeps, fmt.Sprintf("\"%s\"", canonicalizeLabel(val.label)))
+		labelString := fmt.Sprintf("\"%s\"", canonicalizeLabel(val.label))
+		switch getArchString(val) {
+		case "x86_64":
+			deps_x86_64 = append(deps_x86_64, labelString)
+		case "x86":
+			deps_x86 = append(deps_x86, labelString)
+		case "arm64":
+			deps_arm64 = append(deps_arm64, labelString)
+		case "arm":
+			deps_arm = append(deps_arm, labelString)
+		default:
+			panic(fmt.Sprintf("unhandled architecture %s for %s", getArchString(val), val))
+		}
 	}
-	buildRootDepsString := strings.Join(buildRootDeps, ",\n            ")
 
-	return []byte(fmt.Sprintf(formatString, buildRootDepsString))
+	return []byte(fmt.Sprintf(formatString,
+		strings.Join(deps_x86_64, ",\n            "),
+		strings.Join(deps_x86, ",\n            "),
+		strings.Join(deps_arm64, ",\n            "),
+		strings.Join(deps_arm, ",\n            ")))
 }
 
 func (context *bazelContext) cqueryStarlarkFileContents() []byte {
@@ -345,23 +459,64 @@
   %s
 }
 
+getCcObjectFilesLabels = {
+  %s
+}
+
+def get_cc_object_files(target):
+  result = []
+  linker_inputs = providers(target)["CcInfo"].linking_context.linker_inputs.to_list()
+
+  for linker_input in linker_inputs:
+    for library in linker_input.libraries:
+      for object in library.objects:
+        result += [object.path]
+  return result
+
+def get_arch(target):
+  buildoptions = build_options(target)
+  platforms = build_options(target)["//command_line_option:platforms"]
+  if len(platforms) != 1:
+    # An individual configured target should have only one platform architecture.
+    # Note that it's fine for there to be multiple architectures for the same label,
+    # but each is its own configured target.
+    fail("expected exactly 1 platform for " + str(target.label) + " but got " + str(platforms))
+  platform_name = build_options(target)["//command_line_option:platforms"][0].name
+  if platform_name == "host":
+    return "HOST"
+  elif not platform_name.startswith("generic_"):
+    fail("expected platform name of the form 'generic_<arch>', but was " + str(platforms))
+    return "UNKNOWN"
+  return platform_name[len("generic_"):]
+
 def format(target):
-  if str(target.label) in getAllFilesLabels:
-    return str(target.label) + ">>" + ', '.join([f.path for f in target.files.to_list()])
+  id_string = str(target.label) + "|" + get_arch(target)
+  if id_string in getAllFilesLabels:
+    return id_string + ">>" + ', '.join([f.path for f in target.files.to_list()])
+  elif id_string in getCcObjectFilesLabels:
+    return id_string + ">>" + ', '.join(get_cc_object_files(target))
   else:
     # This target was not requested via cquery, and thus must be a dependency
     # of a requested target.
-    return ""
+    return id_string + ">>NONE"
 `
-	var buildRootDeps []string = nil
-	// TODO(cparsons): Sort by request type instead of assuming all requests
-	// are of GetAllFiles type.
-	for val, _ := range context.requests {
-		buildRootDeps = append(buildRootDeps, fmt.Sprintf("\"%s\" : True", canonicalizeLabel(val.label)))
-	}
-	buildRootDepsString := strings.Join(buildRootDeps, ",\n  ")
+	var getAllFilesDeps []string = nil
+	var getCcObjectFilesDeps []string = nil
 
-	return []byte(fmt.Sprintf(formatString, buildRootDepsString))
+	for val, _ := range context.requests {
+		labelWithArch := getCqueryId(val)
+		mapEntryString := fmt.Sprintf("%q : True", labelWithArch)
+		switch val.requestType {
+		case getAllFiles:
+			getAllFilesDeps = append(getAllFilesDeps, mapEntryString)
+		case getCcObjectFiles:
+			getCcObjectFilesDeps = append(getCcObjectFilesDeps, mapEntryString)
+		}
+	}
+	getAllFilesDepsString := strings.Join(getAllFilesDeps, ",\n  ")
+	getCcObjectFilesDepsString := strings.Join(getCcObjectFilesDeps, ",\n  ")
+
+	return []byte(fmt.Sprintf(formatString, getAllFilesDepsString, getCcObjectFilesDepsString))
 }
 
 // Returns a workspace-relative path containing build-related metadata required
@@ -414,9 +569,15 @@
 	}
 	buildrootLabel := "//:buildroot"
 	cqueryOutput, err = context.issueBazelCommand(bazel.CqueryBuildRootRunName, "cquery",
-		[]string{fmt.Sprintf("deps(%s)", buildrootLabel)},
+		[]string{fmt.Sprintf("kind(rule, deps(%s))", buildrootLabel)},
 		"--output=starlark",
 		"--starlark:file="+cqueryFileRelpath)
+	err = ioutil.WriteFile(
+		absolutePath(filepath.Join(context.intermediatesDir(), "cquery.out")),
+		[]byte(cqueryOutput), 0666)
+	if err != nil {
+		return err
+	}
 
 	if err != nil {
 		return err
@@ -431,10 +592,10 @@
 	}
 
 	for val, _ := range context.requests {
-		if cqueryResult, ok := cqueryResults[canonicalizeLabel(val.label)]; ok {
+		if cqueryResult, ok := cqueryResults[getCqueryId(val)]; ok {
 			context.results[val] = string(cqueryResult)
 		} else {
-			return fmt.Errorf("missing result for bazel target %s", val.label)
+			return fmt.Errorf("missing result for bazel target %s. query output: [%s]", getCqueryId(val), cqueryOutput)
 		}
 	}
 
@@ -510,6 +671,9 @@
 
 	// Register bazel-owned build statements (obtained from the aquery invocation).
 	for index, buildStatement := range ctx.Config().BazelContext.BuildStatementsToRegister() {
+		if len(buildStatement.Command) < 1 {
+			panic(fmt.Sprintf("unhandled build statement: %s", buildStatement))
+		}
 		rule := NewRuleBuilder(pctx, ctx)
 		cmd := rule.Command()
 		cmd.Text(fmt.Sprintf("cd %s/execroot/__main__ && %s",
@@ -531,3 +695,16 @@
 		rule.Build(fmt.Sprintf("bazel %d", index), buildStatement.Mnemonic)
 	}
 }
+
+func getCqueryId(key cqueryKey) string {
+	return canonicalizeLabel(key.label) + "|" + getArchString(key)
+}
+
+func getArchString(key cqueryKey) string {
+	arch := key.archType.Name
+	if len(arch) > 0 {
+		return arch
+	} else {
+		return "x86_64"
+	}
+}
diff --git a/bazel/aquery.go b/bazel/aquery.go
index eb4bdfe..c82b464 100644
--- a/bazel/aquery.go
+++ b/bazel/aquery.go
@@ -115,7 +115,23 @@
 	// may be an expensive operation.
 	depsetIdToArtifactIdsCache := map[int][]int{}
 
+	// Do a pass through all actions to identify which artifacts are middleman artifacts.
+	// These will be omitted from the inputs of other actions.
+	// TODO(b/180945500): Handle middleman actions; without proper handling, depending on generated
+	// headers may cause build failures.
+	middlemanArtifactIds := map[int]bool{}
 	for _, actionEntry := range aqueryResult.Actions {
+		if actionEntry.Mnemonic == "Middleman" {
+			for _, outputId := range actionEntry.OutputIds {
+				middlemanArtifactIds[outputId] = true
+			}
+		}
+	}
+
+	for _, actionEntry := range aqueryResult.Actions {
+		if shouldSkipAction(actionEntry) {
+			continue
+		}
 		outputPaths := []string{}
 		for _, outputId := range actionEntry.OutputIds {
 			outputPath, exists := artifactIdToPath[outputId]
@@ -132,6 +148,10 @@
 				return nil, err
 			}
 			for _, inputId := range inputArtifacts {
+				if _, isMiddlemanArtifact := middlemanArtifactIds[inputId]; isMiddlemanArtifact {
+					// Omit middleman artifacts.
+					continue
+				}
 				inputPath, exists := artifactIdToPath[inputId]
 				if !exists {
 					return nil, fmt.Errorf("undefined input artifactId %d", inputId)
@@ -145,12 +165,38 @@
 			InputPaths:  inputPaths,
 			Env:         actionEntry.EnvironmentVariables,
 			Mnemonic:    actionEntry.Mnemonic}
+		if len(actionEntry.Arguments) < 1 {
+			return nil, fmt.Errorf("received action with no command: [%s]", buildStatement)
+			continue
+		}
 		buildStatements = append(buildStatements, buildStatement)
 	}
 
 	return buildStatements, nil
 }
 
+func shouldSkipAction(a action) bool {
+	// TODO(b/180945121): Handle symlink actions.
+	if a.Mnemonic == "Symlink" || a.Mnemonic == "SourceSymlinkManifest" || a.Mnemonic == "SymlinkTree" {
+		return true
+	}
+	// TODO(b/180945500): Handle middleman actions; without proper handling, depending on generated
+	// headers may cause build failures.
+	if a.Mnemonic == "Middleman" {
+		return true
+	}
+	// Skip "Fail" actions, which are placeholder actions designed to always fail.
+	if a.Mnemonic == "Fail" {
+		return true
+	}
+	// TODO(b/180946980): Handle FileWrite. The aquery proto currently contains no information
+	// about the contents that are written.
+	if a.Mnemonic == "FileWrite" {
+		return true
+	}
+	return false
+}
+
 func artifactIdsFromDepsetId(depsetIdToDepset map[int]depSetOfFiles,
 	depsetIdToArtifactIdsCache map[int][]int, depsetId int) ([]int, error) {
 	if result, exists := depsetIdToArtifactIdsCache[depsetId]; exists {
diff --git a/cc/cc.go b/cc/cc.go
index 47a1f8a..c335dac 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -577,6 +577,17 @@
 	makeUninstallable(mod *Module)
 }
 
+// bazelHandler is the interface for a helper object related to deferring to Bazel for
+// processing a module (during Bazel mixed builds). Individual module types should define
+// their own bazel handler if they support deferring to Bazel.
+type bazelHandler interface {
+	// Issue query to Bazel to retrieve information about Bazel's view of the current module.
+	// If Bazel returns this information, set module properties on the current module to reflect
+	// the returned information.
+	// Returns true if information was available from Bazel, false if bazel invocation still needs to occur.
+	generateBazelBuildActions(ctx android.ModuleContext, label string) bool
+}
+
 type xref interface {
 	XrefCcFiles() android.Paths
 }
@@ -779,9 +790,10 @@
 	// type-specific logic. These members may reference different objects or the same object.
 	// Functions of these decorators will be invoked to initialize and register type-specific
 	// build statements.
-	compiler  compiler
-	linker    linker
-	installer installer
+	compiler     compiler
+	linker       linker
+	installer    installer
+	bazelHandler bazelHandler
 
 	features []feature
 	stl      *stl
@@ -1559,24 +1571,7 @@
 	return nameSuffix
 }
 
-func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
-	// Handle the case of a test module split by `test_per_src` mutator.
-	//
-	// The `test_per_src` mutator adds an extra variation named "", depending on all the other
-	// `test_per_src` variations of the test module. Set `outputFile` to an empty path for this
-	// module and return early, as this module does not produce an output file per se.
-	if c.IsTestPerSrcAllTestsVariation() {
-		c.outputFile = android.OptionalPath{}
-		return
-	}
-
-	apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
-	if !apexInfo.IsForPlatform() {
-		c.hideApexVariantFromMake = true
-	}
-
-	c.makeLinkType = GetMakeLinkType(actx, c)
-
+func (c *Module) setSubnameProperty(actx android.ModuleContext) {
 	c.Properties.SubName = ""
 
 	if c.Target().NativeBridge == android.NativeBridgeEnabled {
@@ -1606,6 +1601,43 @@
 			c.Properties.SubName += "." + c.SdkVersion()
 		}
 	}
+}
+
+// Returns true if Bazel was successfully used for the analysis of this module.
+func (c *Module) maybeGenerateBazelActions(actx android.ModuleContext) bool {
+	bazelModuleLabel := c.GetBazelLabel()
+	bazelActionsUsed := false
+	if c.bazelHandler != nil && actx.Config().BazelContext.BazelEnabled() && len(bazelModuleLabel) > 0 {
+		bazelActionsUsed = c.bazelHandler.generateBazelBuildActions(actx, bazelModuleLabel)
+	}
+	return bazelActionsUsed
+}
+
+func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
+	// TODO(cparsons): Any logic in this method occurring prior to querying Bazel should be
+	// requested from Bazel instead.
+
+	// Handle the case of a test module split by `test_per_src` mutator.
+	//
+	// The `test_per_src` mutator adds an extra variation named "", depending on all the other
+	// `test_per_src` variations of the test module. Set `outputFile` to an empty path for this
+	// module and return early, as this module does not produce an output file per se.
+	if c.IsTestPerSrcAllTestsVariation() {
+		c.outputFile = android.OptionalPath{}
+		return
+	}
+
+	c.setSubnameProperty(actx)
+	apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if !apexInfo.IsForPlatform() {
+		c.hideApexVariantFromMake = true
+	}
+
+	if c.maybeGenerateBazelActions(actx) {
+		return
+	}
+
+	c.makeLinkType = GetMakeLinkType(actx, c)
 
 	ctx := &moduleContext{
 		ModuleContext: actx,
diff --git a/cc/object.go b/cc/object.go
index 32347b8..126bd65 100644
--- a/cc/object.go
+++ b/cc/object.go
@@ -46,6 +46,26 @@
 	Properties ObjectLinkerProperties
 }
 
+type objectBazelHandler struct {
+	bazelHandler
+
+	module *Module
+}
+
+func (handler *objectBazelHandler) generateBazelBuildActions(ctx android.ModuleContext, label string) bool {
+	bazelCtx := ctx.Config().BazelContext
+	objPaths, ok := bazelCtx.GetCcObjectFiles(label, ctx.Arch().ArchType)
+	if ok {
+		if len(objPaths) != 1 {
+			ctx.ModuleErrorf("expected exactly one object file for '%s', but got %s", label, objPaths)
+			return false
+		}
+
+		handler.module.outputFile = android.OptionalPathForPath(android.PathForBazelOut(ctx, objPaths[0]))
+	}
+	return ok
+}
+
 type ObjectLinkerProperties struct {
 	// list of modules that should only provide headers for this module.
 	Header_libs []string `android:"arch_variant,variant_prepend"`
@@ -80,6 +100,7 @@
 		baseLinker: NewBaseLinker(module.sanitize),
 	}
 	module.compiler = NewBaseCompiler()
+	module.bazelHandler = &objectBazelHandler{module: module}
 
 	// Clang's address-significance tables are incompatible with ld -r.
 	module.compiler.appendCflags([]string{"-fno-addrsig"})
diff --git a/genrule/genrule.go b/genrule/genrule.go
index b4303a6..50c77cf 100644
--- a/genrule/genrule.go
+++ b/genrule/genrule.go
@@ -206,7 +206,7 @@
 // Returns true if information was available from Bazel, false if bazel invocation still needs to occur.
 func (c *Module) generateBazelBuildActions(ctx android.ModuleContext, label string) bool {
 	bazelCtx := ctx.Config().BazelContext
-	filePaths, ok := bazelCtx.GetAllFiles(label)
+	filePaths, ok := bazelCtx.GetAllFiles(label, ctx.Arch().ArchType)
 	if ok {
 		var bazelOutputFiles android.Paths
 		for _, bazelOutputFile := range filePaths {