Fixed #TSB-1234 test

ebpftracer/ebpf/l7/l7.c

@@ -303,6 +303,8 @@ void perf_event_batch_output(void *ctx,  struct l7_event *e) {
     __u32 e_length = offsetof(typeof(struct l7_event), payload) + (e->payload_size);
     bpf_printk("IK...perf_event_batch_output...e->payload_size=%d, e_length=%d", e->payload_size, e_length);
     unsigned char *src = (unsigned char *)e;
+    __u32 src_size = sizeof(src);
+    bpf_printk("IK...perf_event_batch_output...src=%d", src_size);
     // unsigned char *dst = e_buff->data + e_buff->len;
     cw_copy_byte_arrays(src, e_buff->data, e_length);
 //    for (int i = 0; i < e_length; i++) {   //IK:ERROR: IK: BPF stack limit of 512 bytes is exceeded. Please move large on stack variables into BPF per-cpu array map.