1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Because linux/module.h has tracepoints in the header, and ftrace.h
4 * eventually includes this file, define_trace.h includes linux/module.h
5 * But we do not want the module.h to override the TRACE_SYSTEM macro
6 * variable that define_trace.h is processing, so we only set it
7 * when module events are being processed, which would happen when
8 * CREATE_TRACE_POINTS is defined.
10 #ifdef CREATE_TRACE_POINTS
12 #define TRACE_SYSTEM module
15 #if !defined(LTTNG_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
16 #define LTTNG_TRACE_MODULE_H
18 #include <lttng/lttng-tracepoint-event.h>
22 #ifndef _TRACE_MODULE_DEF
23 #define _TRACE_MODULE_DEF
28 LTTNG_TRACEPOINT_EVENT(module_load
,
30 TP_PROTO(struct module
*mod
),
35 ctf_integer(unsigned int, taints
, mod
->taints
)
36 ctf_string(name
, mod
->name
)
40 LTTNG_TRACEPOINT_EVENT(module_free
,
42 TP_PROTO(struct module
*mod
),
47 ctf_string(name
, mod
->name
)
51 #ifdef CONFIG_MODULE_UNLOAD
52 /* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */
54 LTTNG_TRACEPOINT_EVENT_CLASS(module_refcnt
,
56 TP_PROTO(struct module
*mod
, unsigned long ip
),
61 ctf_integer_hex(unsigned long, ip
, ip
)
62 ctf_integer(int, refcnt
, atomic_read(&mod
->refcnt
))
63 ctf_string(name
, mod
->name
)
67 LTTNG_TRACEPOINT_EVENT_INSTANCE(module_refcnt
, module_get
,
69 TP_PROTO(struct module
*mod
, unsigned long ip
),
74 LTTNG_TRACEPOINT_EVENT_INSTANCE(module_refcnt
, module_put
,
76 TP_PROTO(struct module
*mod
, unsigned long ip
),
80 #endif /* CONFIG_MODULE_UNLOAD */
82 LTTNG_TRACEPOINT_EVENT(module_request
,
84 TP_PROTO(char *name
, bool wait
, unsigned long ip
),
86 TP_ARGS(name
, wait
, ip
),
89 ctf_integer_hex(unsigned long, ip
, ip
)
90 ctf_integer(bool, wait
, wait
)
91 ctf_string(name
, name
)
95 #endif /* CONFIG_MODULES */
97 #endif /* LTTNG_TRACE_MODULE_H */
99 /* This part must be outside protection */
100 #include <lttng/define_trace.h>
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