summaryrefslogtreecommitdiff
path: root/include/trace/events/module.h
blob: a585f8135bd98ba9974724977cdbe5b2a23cb8d5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
#undef TRACE_SYSTEM
#define TRACE_SYSTEM module

#if !defined(_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_MODULE_H

#include <linux/tracepoint.h>

#ifdef CONFIG_MODULES

struct module;

#define show_module_flags(flags) __print_flags(flags, "",	\
	{ (1UL << TAINT_PROPRIETARY_MODULE),	"P" },		\
	{ (1UL << TAINT_FORCED_MODULE),		"F" },		\
	{ (1UL << TAINT_CRAP),			"C" })

TRACE_EVENT(module_load,

	TP_PROTO(struct module *mod),

	TP_ARGS(mod),

	TP_STRUCT__entry(
		__field(	unsigned int,	taints		)
		__string(	name,		mod->name	)
	),

	TP_fast_assign(
		__entry->taints = mod->taints;
		__assign_str(name, mod->name);
	),

	TP_printk("%s %s", __get_str(name), show_module_flags(__entry->taints))
);

TRACE_EVENT(module_free,

	TP_PROTO(struct module *mod),

	TP_ARGS(mod),

	TP_STRUCT__entry(
		__string(	name,		mod->name	)
	),

	TP_fast_assign(
		__assign_str(name, mod->name);
	),

	TP_printk("%s", __get_str(name))
);

DECLARE_EVENT_CLASS(module_refcnt,

	TP_PROTO(struct module *mod, unsigned long ip),

	TP_ARGS(mod, ip),

	TP_STRUCT__entry(
		__field(	unsigned long,	ip		)
		__field(	int,		refcnt		)
		__string(	name,		mod->name	)
	),

	TP_fast_assign(
		__entry->ip	= ip;
		__entry->refcnt	= __this_cpu_read(mod->refptr->count);
		__assign_str(name, mod->name);
	),

	TP_printk("%s call_site=%pf refcnt=%d",
		  __get_str(name), (void *)__entry->ip, __entry->refcnt)
);

DEFINE_EVENT(module_refcnt, module_get,

	TP_PROTO(struct module *mod, unsigned long ip),

	TP_ARGS(mod, ip)
);

DEFINE_EVENT(module_refcnt, module_put,

	TP_PROTO(struct module *mod, unsigned long ip),

	TP_ARGS(mod, ip)
);

TRACE_EVENT(module_request,

	TP_PROTO(char *name, bool wait, unsigned long ip),

	TP_ARGS(name, wait, ip),

	TP_STRUCT__entry(
		__field(	bool,		wait		)
		__field(	unsigned long,	ip		)
		__string(	name,		name		)
	),

	TP_fast_assign(
		__entry->wait	= wait;
		__entry->ip	= ip;
		__assign_str(name, name);
	),

	TP_printk("%s wait=%d call_site=%pf",
		  __get_str(name), (int)__entry->wait, (void *)__entry->ip)
);

#endif /* CONFIG_MODULES */

#endif /* _TRACE_MODULE_H */

/* This part must be outside protection */
#include <trace/define_trace.h>