bpf_testmod-events.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (c) 2020 Facebook */
 3#undef TRACE_SYSTEM
 4#define TRACE_SYSTEM bpf_testmod
 5
 6#if !defined(_BPF_TESTMOD_EVENTS_H) || defined(TRACE_HEADER_MULTI_READ)
 7#define _BPF_TESTMOD_EVENTS_H
 8
 9#include <linux/tracepoint.h>
10#include "bpf_testmod.h"
11
12TRACE_EVENT(bpf_testmod_test_read,
13	TP_PROTO(struct task_struct *task, struct bpf_testmod_test_read_ctx *ctx),
14	TP_ARGS(task, ctx),
15	TP_STRUCT__entry(
16		__field(pid_t, pid)
17		__array(char, comm, TASK_COMM_LEN)
18		__field(loff_t, off)
19		__field(size_t, len)
20	),
21	TP_fast_assign(
22		__entry->pid = task->pid;
23		memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
24		__entry->off = ctx->off;
25		__entry->len = ctx->len;
26	),
27	TP_printk("pid=%d comm=%s off=%llu len=%zu",
28		  __entry->pid, __entry->comm, __entry->off, __entry->len)
29);
30
31/* A bare tracepoint with no event associated with it */
32DECLARE_TRACE(bpf_testmod_test_write_bare,
33	TP_PROTO(struct task_struct *task, struct bpf_testmod_test_write_ctx *ctx),
34	TP_ARGS(task, ctx)
35);
36
37/* Used in bpf_testmod_test_read() to test __nullable suffix */
38DECLARE_TRACE(bpf_testmod_test_nullable_bare,
39	TP_PROTO(struct bpf_testmod_test_read_ctx *ctx__nullable),
40	TP_ARGS(ctx__nullable)
41);
42
43struct sk_buff;
44
45DECLARE_TRACE(bpf_testmod_test_raw_tp_null,
46	TP_PROTO(struct sk_buff *skb),
47	TP_ARGS(skb)
48);
49
50
51#undef BPF_TESTMOD_DECLARE_TRACE
52#ifdef DECLARE_TRACE_WRITABLE
53#define BPF_TESTMOD_DECLARE_TRACE(call, proto, args, size) \
54	DECLARE_TRACE_WRITABLE(call, PARAMS(proto), PARAMS(args), size)
55#else
56#define BPF_TESTMOD_DECLARE_TRACE(call, proto, args, size) \
57	DECLARE_TRACE(call, PARAMS(proto), PARAMS(args))
58#endif
59
60BPF_TESTMOD_DECLARE_TRACE(bpf_testmod_test_writable_bare,
61	TP_PROTO(struct bpf_testmod_test_writable_ctx *ctx),
62	TP_ARGS(ctx),
63	sizeof(struct bpf_testmod_test_writable_ctx)
64);
65
66#endif /* _BPF_TESTMOD_EVENTS_H */
67
68#undef TRACE_INCLUDE_PATH
69#define TRACE_INCLUDE_PATH .
70#define TRACE_INCLUDE_FILE bpf_testmod-events
71#include <trace/define_trace.h>