mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-04 09:34:12 +08:00
e7e6c774f5
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>
24 lines
658 B
C
24 lines
658 B
C
/* Copyright (c) 2016 Facebook
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of version 2 of the GNU General Public
|
|
* License as published by the Free Software Foundation.
|
|
*/
|
|
#include "vmlinux.h"
|
|
#include <bpf/bpf_helpers.h>
|
|
|
|
/* from /sys/kernel/tracing/events/task/task_rename/format */
|
|
SEC("tracepoint/task/task_rename")
|
|
int prog(struct trace_event_raw_task_rename *ctx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* from /sys/kernel/tracing/events/fib/fib_table_lookup/format */
|
|
SEC("tracepoint/fib/fib_table_lookup")
|
|
int prog2(struct trace_event_raw_fib_table_lookup *ctx)
|
|
{
|
|
return 0;
|
|
}
|
|
char _license[] SEC("license") = "GPL";
|