k6: emit tracepoints for all syscall families

1 files changed, 10 insertions, 2 deletions

diff --git a/internal/generate/codegen.go b/internal/generate/codegen.go
index e3ec0ef..3848b93 100644
--- a/internal/generate/codegen.go
+++ b/internal/generate/codegen.go
@@ -94,7 +94,7 @@ func classifySyscall(sc Syscall) ([]GeneratedTracepoint, string) {
 	allCanGenerate := true
 
 	if sc.Enter != nil {
-		enterClass = ClassifyFormat(sc.Enter)
+		enterClass = classifyEnterForGeneration(sc.Enter)
 		if enterClass.Kind == KindNone {
 			allCanGenerate = false
 		}
@@ -113,7 +113,7 @@ func classifySyscall(sc Syscall) ([]GeneratedTracepoint, string) {
 
 	if !allCanGenerate {
 		names := syscallFormatNames(sc)
-		return nil, fmt.Sprintf("Ignoring %s as possibly not file I/O related", strings.Join(names, " "))
+		return nil, fmt.Sprintf("Skipping %s as incomplete or unclassifiable", strings.Join(names, " "))
 	}
 
 	if isEnterRejected(enterClass.Kind) {
@@ -131,6 +131,14 @@ func classifySyscall(sc Syscall) ([]GeneratedTracepoint, string) {
 	return result, ""
 }
 
+func classifyEnterForGeneration(f *Format) ClassificationResult {
+	classification := ClassifyFormat(f)
+	if classification.Kind != KindNone || len(f.ExternalFields) == 0 {
+		return classification
+	}
+	return ClassificationResult{Kind: KindNull}
+}
+
 // isEnterRejected reports whether kind must not appear on a syscall-enter
 // tracepoint. The answer comes from the kindRegistry so no switch statement
 // needs updating when a new TracepointKind is added.