add tcp_sendpage for tcptop tool

tools/tcptop.py

@@ -111,8 +111,7 @@ def range_check(string):
 BPF_HASH(ipv6_send_bytes, struct ipv6_key_t);
 BPF_HASH(ipv6_recv_bytes, struct ipv6_key_t);
 
-int kprobe__tcp_sendmsg(struct pt_regs *ctx, struct sock *sk,
- struct msghdr *msg, size_t size)
+static int tcp_sendstat(struct sock *sk, size_t size)
 {
  if (container_should_be_filtered()) {
  return 0;
@@ -152,6 +151,17 @@ def range_check(string):
  return 0;
 }
 
+int kprobe__tcp_sendmsg(struct pt_regs *ctx, struct sock *sk,
+ struct msghdr *msg, size_t size)
+{
+ return tcp_sendstat(sk, size);
+}
+
+int kprobe__tcp_sendpage(struct pt_regs *ctx, struct sock *sk,
+ struct page *page, int offset, size_t size)
+{
+ return tcp_sendstat(sk, size);
+}
 /*
  * tcp_recvmsg() would be obvious to trace, but is less suitable because:
  * - we'd need to trace both entry and return, to have both sock and size