[bpf-next PATCH 2/3] bpf: add id to prog tracepoint

[Sebastiano Miano]

This patch adds the prog id to the bpf tracepoints
that can be used when monitoring or inspecting prog
related functions.

Signed-off-by: Sebastiano Miano <sebastiano.mi...@polito.it>
Suggested-by: Jesper Dangaard Brouer <bro...@redhat.com>
---
 include/trace/events/bpf.h |   15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/include/trace/events/bpf.h b/include/trace/events/bpf.h
index d7c9726..4ec19c5 100644
--- a/include/trace/events/bpf.h
+++ b/include/trace/events/bpf.h
@@ -65,16 +65,19 @@ DECLARE_EVENT_CLASS(bpf_prog_event,
        TP_STRUCT__entry(
                __array(u8, prog_tag, 8)
                __field(u32, type)
+               __field(u32, id)
        ),
 
        TP_fast_assign(
                BUILD_BUG_ON(sizeof(__entry->prog_tag) != sizeof(prg->tag));
                memcpy(__entry->prog_tag, prg->tag, sizeof(prg->tag));
                __entry->type = prg->type;
+               __entry->id   = prg->aux->id;
        ),
 
-       TP_printk("prog=%s type=%s",
+       TP_printk("prog=%s id=%u type=%s",
                  __print_hex_str(__entry->prog_tag, 8),
+                 __entry->id,
                  __print_symbolic(__entry->type, __PROG_TYPE_SYM_TAB))
 );
 
@@ -102,6 +105,7 @@ TRACE_EVENT(bpf_prog_load,
                __array(u8, prog_tag, 8)
                __field(u32, type)
                __field(int, ufd)
+               __field(u32, id)
        ),
 
        TP_fast_assign(
@@ -109,10 +113,12 @@ TRACE_EVENT(bpf_prog_load,
                memcpy(__entry->prog_tag, prg->tag, sizeof(prg->tag));
                __entry->type = prg->type;
                __entry->ufd  = ufd;
+               __entry->id   = prg->aux->id;
        ),
 
-       TP_printk("prog=%s type=%s ufd=%d",
+       TP_printk("prog=%s id=%u type=%s ufd=%d",
                  __print_hex_str(__entry->prog_tag, 8),
+                 __entry->id,
                  __print_symbolic(__entry->type, __PROG_TYPE_SYM_TAB),
                  __entry->ufd)
 );
@@ -161,6 +167,7 @@ DECLARE_EVENT_CLASS(bpf_obj_prog,
                __array(u8, prog_tag, 8)
                __field(int, ufd)
                __string(path, pname->name)
+               __field(u32, id)
        ),
 
        TP_fast_assign(
@@ -168,10 +175,12 @@ DECLARE_EVENT_CLASS(bpf_obj_prog,
                memcpy(__entry->prog_tag, prg->tag, sizeof(prg->tag));
                __assign_str(path, pname->name);
                __entry->ufd = ufd;
+               __entry->id  = prg->aux->id;
        ),
 
-       TP_printk("prog=%s path=%s ufd=%d",
+       TP_printk("prog=%s id=%u path=%s ufd=%d",
                  __print_hex_str(__entry->prog_tag, 8),
+                 __entry->id,
                  __get_str(path), __entry->ufd)
 );