Use a versioned profile file if available am: 8aed42c798 am: adfdd36948 (713fb548) · Commits · e / os / android_build_soong

cc/pgo.go

+24 −1

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@ package cc

		import (
		"fmt"
		"path/filepath"
		"strings"

		"android/soong/android"
		@@ -100,12 +101,34 @@ func (props *PgoProperties) addProfileGatherFlags(ctx ModuleContext, flags Flags
		}

		func (props *PgoProperties) getPgoProfileFile(ctx BaseModuleContext) android.OptionalPath {
		profile_file := *props.Pgo.Profile_file

		// Test if the profile_file is present in any of the PGO profile projects
		for _, profileProject := range getPgoProfileProjects(ctx.DeviceConfig()) {
		path := android.ExistentPathForSource(ctx, profileProject, *props.Pgo.Profile_file)
		// Bug: http://b/74395273 If the profile_file is unavailable,
		// use a versioned file named
		// <profile_file>.<arbitrary-version> when available. This
		// works around an issue where ccache serves stale cache
		// entries when the profile file has changed.
		globPattern := filepath.Join(profileProject, profile_file+".*")
		versioned_profiles, err := ctx.GlobWithDeps(globPattern, nil)
		if err != nil {
		ctx.ModuleErrorf("glob: %s", err.Error())
		}

		path := android.ExistentPathForSource(ctx, profileProject, profile_file)
		if path.Valid() {
		if len(versioned_profiles) != 0 {
		ctx.PropertyErrorf("pgo.profile_file", "Profile_file has multiple versions: "+filepath.Join(profileProject, profile_file)+", "+strings.Join(versioned_profiles, ", "))
		}
		return path
		}

		if len(versioned_profiles) > 1 {
		ctx.PropertyErrorf("pgo.profile_file", "Profile_file has multiple versions: "+strings.Join(versioned_profiles, ", "))
		} else if len(versioned_profiles) == 1 {
		return android.OptionalPathForPath(android.PathForSource(ctx, versioned_profiles[0]))
		}
		}

		// Record that this module's profile file is absent