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authorDaniel T. Lee <danieltimlee@gmail.com>2023-08-18 12:01:12 +0300
committerAlexei Starovoitov <ast@kernel.org>2023-08-22 01:39:09 +0300
commite7e6c774f5d40244444f23b8c49dac2ded158d8c (patch)
treea6b348adf3883cbaaed55b2a273dd62b2eb416bf /samples/bpf/tracex1_kern.c
parent34f6e38f58db9a94718c273edc9ca3fc8b4dba5f (diff)
downloadlinux-e7e6c774f5d40244444f23b8c49dac2ded158d8c.tar.xz
samples/bpf: convert to vmlinux.h with tracing programs
This commit replaces separate headers with a single vmlinux.h to tracing programs. Thanks to that, we no longer need to define the argument structure for tracing programs directly. For example, argument for the sched_switch tracpepoint (sched_switch_args) can be replaced with the vmlinux.h provided trace_event_raw_sched_switch. Additional defines have been added to the BPF program either directly or through the inclusion of net_shared.h. Defined values are PERF_MAX_STACK_DEPTH, IFNAMSIZ constants and __stringify() macro. This change enables the BPF program to access internal structures with BTF generated "vmlinux.h" header. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Link: https://lore.kernel.org/r/20230818090119.477441-3-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples/bpf/tracex1_kern.c')
-rw-r--r--samples/bpf/tracex1_kern.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/samples/bpf/tracex1_kern.c b/samples/bpf/tracex1_kern.c
index ef30d2b353b0..bb78bdbffa87 100644
--- a/samples/bpf/tracex1_kern.c
+++ b/samples/bpf/tracex1_kern.c
@@ -4,9 +4,8 @@
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*/
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <uapi/linux/bpf.h>
+#include "vmlinux.h"
+#include "net_shared.h"
#include <linux/version.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>