Add build tracing
This creates a rotating build.trace.gz in the out directory that can be
loaded with chrome://tracing. It'll include start and end timings for
make/soong/kati/ninja, and it will import and time-correct the ninja log
files.
Test: m -j; load out/build.trace.gz in chrome://tracing
Test: multiproduct_kati -keep; load out/multiproduct*/build.trace.gz
Change-Id: Ic060fa9515eb88d95dbe16712479dae9dffcf626
diff --git a/cmd/soong_ui/main.go b/cmd/soong_ui/main.go
index 34739b7..de941f4 100644
--- a/cmd/soong_ui/main.go
+++ b/cmd/soong_ui/main.go
@@ -24,6 +24,7 @@
"android/soong/ui/build"
"android/soong/ui/logger"
+ "android/soong/ui/tracer"
)
func indexList(s string, list []string) int {
@@ -51,26 +52,33 @@
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
- build.SetupSignals(log, cancel, log.Cleanup)
+ trace := tracer.New(log)
+ defer trace.Close()
- buildCtx := &build.ContextImpl{
+ build.SetupSignals(log, cancel, func() {
+ trace.Close()
+ log.Cleanup()
+ })
+
+ buildCtx := build.Context{&build.ContextImpl{
Context: ctx,
Logger: log,
+ Tracer: trace,
StdioInterface: build.StdioImpl{},
- }
+ }}
config := build.NewConfig(buildCtx, os.Args[1:]...)
log.SetVerbose(config.IsVerbose())
- if err := os.MkdirAll(config.OutDir(), 0777); err != nil {
- log.Fatalf("Error creating out directory: %v", err)
- }
+ build.SetupOutDir(buildCtx, config)
log.SetOutput(filepath.Join(config.OutDir(), "build.log"))
+ trace.SetOutput(filepath.Join(config.OutDir(), "build.trace"))
if start, ok := os.LookupEnv("TRACE_BEGIN_SOONG"); ok {
if !strings.HasSuffix(start, "N") {
if start_time, err := strconv.ParseUint(start, 10, 64); err == nil {
log.Verbosef("Took %dms to start up.",
time.Since(time.Unix(0, int64(start_time))).Nanoseconds()/time.Millisecond.Nanoseconds())
+ buildCtx.CompleteTrace("startup", start_time, uint64(time.Now().UnixNano()))
}
}
}