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
12 TRACE_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 */
32 DECLARE_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 #undef BPF_TESTMOD_DECLARE_TRACE
38 #ifdef DECLARE_TRACE_WRITABLE
39 #define BPF_TESTMOD_DECLARE_TRACE(call, proto, args, size) \
40 DECLARE_TRACE_WRITABLE(call, PARAMS(proto), PARAMS(args), size)
41 #else
42 #define BPF_TESTMOD_DECLARE_TRACE(call, proto, args, size) \
43 DECLARE_TRACE(call, PARAMS(proto), PARAMS(args))
44 #endif
45
46 BPF_TESTMOD_DECLARE_TRACE(bpf_testmod_test_writable_bare,
47 TP_PROTO(struct bpf_testmod_test_writable_ctx *ctx),
48 TP_ARGS(ctx),
49 sizeof(struct bpf_testmod_test_writable_ctx)
50 );
51
52 #endif /* _BPF_TESTMOD_EVENTS_H */
53
54 #undef TRACE_INCLUDE_PATH
55 #define TRACE_INCLUDE_PATH .
56 #define TRACE_INCLUDE_FILE bpf_testmod-events
57 #include <trace/define_trace.h>
58
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