diff --git a/src/cmd/trace/v2/main.go b/src/cmd/trace/v2/main.go
index 0a60ef04db..21b247a3f8 100644
--- a/src/cmd/trace/v2/main.go
+++ b/src/cmd/trace/v2/main.go
@@ -27,6 +27,35 @@ func Main(traceFile, httpAddr, pprof string, debug int) error {
                return fmt.Errorf("failed to read trace file: %w", err)
        }
        defer tracef.Close()
+       parsed, err := parseTrace(tracef)
+       if err != nil {
+               return err
+       }
+
+       var pprofFunc traceviewer.ProfileFunc
+       switch pprof {
+       case "net":
+               pprofFunc = pprofByGoroutine(computePprofIO(), parsed)
+       case "sync":
+               pprofFunc = pprofByGoroutine(computePprofBlock(), parsed)
+       case "syscall":
+               pprofFunc = pprofByGoroutine(computePprofSyscall(), parsed)
+       case "sched":
+               pprofFunc = pprofByGoroutine(computePprofSched(), parsed)
+       }
+       if pprofFunc != nil {
+               records, err := pprofFunc(&http.Request{})
+               if err != nil {
+                       return fmt.Errorf("failed to generate pprof: %v\n", err)
+               }
+               if err := traceviewer.BuildProfile(records).Write(os.Stdout); err != nil {
+                       return fmt.Errorf("failed to generate pprof: %v\n", err)
+               }
+               os.Exit(0)
+       }
+       if pprof != "" {
+               return fmt.Errorf("unknown pprof type %s\n", pprof)
+       }
 
        // Debug flags.
        switch debug {
@@ -43,10 +72,6 @@ func Main(traceFile, httpAddr, pprof string, debug int) error {
        addr := "http://" + ln.Addr().String()
 
        log.Print("Preparing trace for viewer...")
-       parsed, err := parseTrace(tracef)
-       if err != nil {
-               return err
-       }
        // N.B. tracef not needed after this point.
        // We might double-close, but that's fine; we ignore the error.
        tracef.Close()