Fix verifier error

open-telemetry · Feb 14, 2025 · fb11ecc · fb11ecc
1 parent 596e91d
commit fb11ecc
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/internal/pkg/instrumentation/bpf/google.golang.org/grpc/server/bpf/probe.bpf.c b/internal/pkg/instrumentation/bpf/google.golang.org/grpc/server/bpf/probe.bpf.c
@@ -301,7 +301,9 @@ int uprobe_server_handleStream2_Returns(struct pt_regs *ctx) {
 SEC("uprobe/http2Server_operateHeader")
 int uprobe_http2Server_operateHeader(struct pt_regs *ctx)
 {
-    void *frame_ptr = is_new_frame_pos ? get_argument(ctx, 4) : get_argument(ctx, 2);
+    void *arg4 = get_argument(ctx, 4);
+    void *arg2 = get_argument(ctx, 2);
+    void *frame_ptr = is_new_frame_pos ? arg4 : arg2;
     struct go_slice header_fields = {};
     bpf_probe_read(&header_fields, sizeof(header_fields), (void *)(frame_ptr + frame_fields_pos));
     char key[W3C_KEY_LENGTH] = "traceparent";