Fix BPF program loading on 4.x kernels

ddelnano · ddelnano · commit 20147290b6f6 · 2025-06-26T15:13:51.000Z
Signed-off-by: Dom Del Nano &lt;ddelnano@gmail.com&gt;
diff --git a/src/stirling/source_connectors/socket_tracer/bcc_bpf/go_http2_trace.c b/src/stirling/source_connectors/socket_tracer/bcc_bpf/go_http2_trace.c
@@ -161,7 +161,8 @@ static __inline int32_t get_fd_from_http_http2Framer(const void* framer_ptr,
   }
 
   struct go_interface inner_intf;
-  bpf_probe_read(&inner_intf, sizeof(inner_intf), io_writer_interface.ptr + inner_intf_offset);
+  BPF_PROBE_READ_VAR(inner_intf,
+                     io_writer_interface.ptr + inner_intf_offset);
 
   if (conn_intf) {
     return get_fd_from_conn_intf(inner_intf);

Original file line number	Diff line number	Diff line change
`@@ -161,7 +161,8 @@ static __inline int32_t get_fd_from_http_http2Framer(const void* framer_ptr,`
`161`	`161`	`}`
`162`	`162`
`163`	`163`	`struct go_interface inner_intf;`
`164`		`- bpf_probe_read(&inner_intf, sizeof(inner_intf), io_writer_interface.ptr + inner_intf_offset);`
	`164`	`+ BPF_PROBE_READ_VAR(inner_intf,`
	`165`	`+ io_writer_interface.ptr + inner_intf_offset);`
`165`	`166`
`166`	`167`	`if (conn_intf) {`
`167`	`168`	`return get_fd_from_conn_intf(inner_intf);`