Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / trace / events / module.h
1 /*
2  * Because linux/module.h has tracepoints in the header, and ftrace.h
3  * used to include this file, define_trace.h includes linux/module.h
4  * But we do not want the module.h to override the TRACE_SYSTEM macro
5  * variable that define_trace.h is processing, so we only set it
6  * when module events are being processed, which would happen when
7  * CREATE_TRACE_POINTS is defined.
8  */
9 #ifdef CREATE_TRACE_POINTS
10 #undef TRACE_SYSTEM
11 #define TRACE_SYSTEM module
12 #endif
13
14 #if !defined(_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
15 #define _TRACE_MODULE_H
16
17 #include <linux/tracepoint.h>
18
19 #ifdef CONFIG_MODULES
20
21 struct module;
22
23 #define show_module_flags(flags) __print_flags(flags, "",       \
24         { (1UL << TAINT_PROPRIETARY_MODULE),    "P" },          \
25         { (1UL << TAINT_FORCED_MODULE),         "F" },          \
26         { (1UL << TAINT_CRAP),                  "C" })
27
28 TRACE_EVENT(module_load,
29
30         TP_PROTO(struct module *mod),
31
32         TP_ARGS(mod),
33
34         TP_STRUCT__entry(
35                 __field(        unsigned int,   taints          )
36                 __string(       name,           mod->name       )
37         ),
38
39         TP_fast_assign(
40                 __entry->taints = mod->taints;
41                 __assign_str(name, mod->name);
42         ),
43
44         TP_printk("%s %s", __get_str(name), show_module_flags(__entry->taints))
45 );
46
47 TRACE_EVENT(module_free,
48
49         TP_PROTO(struct module *mod),
50
51         TP_ARGS(mod),
52
53         TP_STRUCT__entry(
54                 __string(       name,           mod->name       )
55         ),
56
57         TP_fast_assign(
58                 __assign_str(name, mod->name);
59         ),
60
61         TP_printk("%s", __get_str(name))
62 );
63
64 #ifdef CONFIG_MODULE_UNLOAD
65 /* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */
66
67 DECLARE_EVENT_CLASS(module_refcnt,
68
69         TP_PROTO(struct module *mod, unsigned long ip),
70
71         TP_ARGS(mod, ip),
72
73         TP_STRUCT__entry(
74                 __field(        unsigned long,  ip              )
75                 __field(        int,            refcnt          )
76                 __string(       name,           mod->name       )
77         ),
78
79         TP_fast_assign(
80                 __entry->ip     = ip;
81                 __entry->refcnt = __this_cpu_read(mod->refptr->incs) + __this_cpu_read(mod->refptr->decs);
82                 __assign_str(name, mod->name);
83         ),
84
85         TP_printk("%s call_site=%pf refcnt=%d",
86                   __get_str(name), (void *)__entry->ip, __entry->refcnt)
87 );
88
89 DEFINE_EVENT(module_refcnt, module_get,
90
91         TP_PROTO(struct module *mod, unsigned long ip),
92
93         TP_ARGS(mod, ip)
94 );
95
96 DEFINE_EVENT(module_refcnt, module_put,
97
98         TP_PROTO(struct module *mod, unsigned long ip),
99
100         TP_ARGS(mod, ip)
101 );
102 #endif /* CONFIG_MODULE_UNLOAD */
103
104 TRACE_EVENT(module_request,
105
106         TP_PROTO(char *name, bool wait, unsigned long ip),
107
108         TP_ARGS(name, wait, ip),
109
110         TP_STRUCT__entry(
111                 __field(        unsigned long,  ip              )
112                 __field(        bool,           wait            )
113                 __string(       name,           name            )
114         ),
115
116         TP_fast_assign(
117                 __entry->ip     = ip;
118                 __entry->wait   = wait;
119                 __assign_str(name, name);
120         ),
121
122         TP_printk("%s wait=%d call_site=%pf",
123                   __get_str(name), (int)__entry->wait, (void *)__entry->ip)
124 );
125
126 #endif /* CONFIG_MODULES */
127
128 #endif /* _TRACE_MODULE_H */
129
130 /* This part must be outside protection */
131 #include <trace/define_trace.h>