xref: /openbmc/linux/include/trace/events/module.h (revision b6dcefde)
1 #undef TRACE_SYSTEM
2 #define TRACE_SYSTEM module
3 
4 #if !defined(_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define _TRACE_MODULE_H
6 
7 #include <linux/tracepoint.h>
8 
9 #ifdef CONFIG_MODULES
10 
11 struct module;
12 
13 #define show_module_flags(flags) __print_flags(flags, "",	\
14 	{ (1UL << TAINT_PROPRIETARY_MODULE),	"P" },		\
15 	{ (1UL << TAINT_FORCED_MODULE),		"F" },		\
16 	{ (1UL << TAINT_CRAP),			"C" })
17 
18 TRACE_EVENT(module_load,
19 
20 	TP_PROTO(struct module *mod),
21 
22 	TP_ARGS(mod),
23 
24 	TP_STRUCT__entry(
25 		__field(	unsigned int,	taints		)
26 		__string(	name,		mod->name	)
27 	),
28 
29 	TP_fast_assign(
30 		__entry->taints = mod->taints;
31 		__assign_str(name, mod->name);
32 	),
33 
34 	TP_printk("%s %s", __get_str(name), show_module_flags(__entry->taints))
35 );
36 
37 TRACE_EVENT(module_free,
38 
39 	TP_PROTO(struct module *mod),
40 
41 	TP_ARGS(mod),
42 
43 	TP_STRUCT__entry(
44 		__string(	name,		mod->name	)
45 	),
46 
47 	TP_fast_assign(
48 		__assign_str(name, mod->name);
49 	),
50 
51 	TP_printk("%s", __get_str(name))
52 );
53 
54 DECLARE_EVENT_CLASS(module_refcnt,
55 
56 	TP_PROTO(struct module *mod, unsigned long ip, int refcnt),
57 
58 	TP_ARGS(mod, ip, refcnt),
59 
60 	TP_STRUCT__entry(
61 		__field(	unsigned long,	ip		)
62 		__field(	int,		refcnt		)
63 		__string(	name,		mod->name	)
64 	),
65 
66 	TP_fast_assign(
67 		__entry->ip	= ip;
68 		__entry->refcnt	= refcnt;
69 		__assign_str(name, mod->name);
70 	),
71 
72 	TP_printk("%s call_site=%pf refcnt=%d",
73 		  __get_str(name), (void *)__entry->ip, __entry->refcnt)
74 );
75 
76 DEFINE_EVENT(module_refcnt, module_get,
77 
78 	TP_PROTO(struct module *mod, unsigned long ip, int refcnt),
79 
80 	TP_ARGS(mod, ip, refcnt)
81 );
82 
83 DEFINE_EVENT(module_refcnt, module_put,
84 
85 	TP_PROTO(struct module *mod, unsigned long ip, int refcnt),
86 
87 	TP_ARGS(mod, ip, refcnt)
88 );
89 
90 TRACE_EVENT(module_request,
91 
92 	TP_PROTO(char *name, bool wait, unsigned long ip),
93 
94 	TP_ARGS(name, wait, ip),
95 
96 	TP_STRUCT__entry(
97 		__field(	bool,		wait		)
98 		__field(	unsigned long,	ip		)
99 		__string(	name,		name		)
100 	),
101 
102 	TP_fast_assign(
103 		__entry->wait	= wait;
104 		__entry->ip	= ip;
105 		__assign_str(name, name);
106 	),
107 
108 	TP_printk("%s wait=%d call_site=%pf",
109 		  __get_str(name), (int)__entry->wait, (void *)__entry->ip)
110 );
111 
112 #endif /* CONFIG_MODULES */
113 
114 #endif /* _TRACE_MODULE_H */
115 
116 /* This part must be outside protection */
117 #include <trace/define_trace.h>
118 
119