.

go/xcommon/tracing/cmd/gotrace/gotrace_test.go

@@ -138,7 +138,7 @@ func TestGoTraceGen(t *testing.T) {
 
 	// XXX autodetect (go list ?)
 	//testv := []string{"a/pkg1", "b/pkg2", "c/pkg3", "d/pkg4"}
-	testv := []string{"a/pkg1"}
+	testv := []string{"b/pkg2"}
 
 	for _, tpkg := range testv {
 		err = tracegen(tpkg, tBuildCtx, "" /* = local imorts disabled */)

go/xcommon/tracing/cmd/gotrace/testdata/src/a/pkg1/pkg1c.go

@@ -9,7 +9,9 @@ void hello() {
 */
 import "C"
 
-// FIXME vvv does not currently work
+// FIXME vvv does not currently work because go/loader gives us already
+// preprocessed result without original comments.
+//
 // trace event defined in a cgo file
 //trace:event traceHello()