[PATCH] perf bpf skels: vmlinux.h uses bpf.h and perf_event.h in the source directory

From: Yang Jihong
Date: Tue May 09 2023 - 02:38:25 EST

Currently, vmlinux.h uses the bpf.h and perf_event.h header files in the
system path. If the header files in compilation environment are old,
compilation may fail. For example:

/home/yangjihong/linux/tools/perf/util/bpf_skel/.tmp/../vmlinux.h:151:27: error: field has incomplete type 'union perf_sample_weight'
union perf_sample_weight weight;

Use the bpf.h and perf_event.h files in the source code directory to
avoid compilation compatibility problems.

Signed-off-by: Yang Jihong <yangjihong1@xxxxxxxxxx>
tools/perf/util/bpf_skel/vmlinux.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/bpf_skel/vmlinux.h b/tools/perf/util/bpf_skel/vmlinux.h
index 449b1ea91fc4..af79bcc4c4b7 100644
--- a/tools/perf/util/bpf_skel/vmlinux.h
+++ b/tools/perf/util/bpf_skel/vmlinux.h
@@ -1,11 +1,13 @@
#ifndef __VMLINUX_H
#define __VMLINUX_H

-#include <linux/bpf.h>
#include <linux/types.h>
-#include <linux/perf_event.h>
#include <stdbool.h>

+// Use header files in source directory to avoid compilation compatibility problems.
+#include "../../../include/uapi/linux/perf_event.h"
+#include "../../../include/uapi/linux/bpf.h"
// non-UAPI kernel data structures, used in the .bpf.c BPF tool component.

// Just the fields used in these tools preserving the access index so that