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.
9 #ifdef CREATE_TRACE_POINTS
11 #define TRACE_SYSTEM module
14 #if !defined(_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
15 #define _TRACE_MODULE_H
17 #include <linux/tracepoint.h>
23 #define show_module_flags(flags) __print_flags(flags, "", \
24 { (1UL << TAINT_PROPRIETARY_MODULE), "P" }, \
25 { (1UL << TAINT_OOT_MODULE), "O" }, \
26 { (1UL << TAINT_FORCED_MODULE), "F" }, \
27 { (1UL << TAINT_CRAP), "C" }, \
28 { (1UL << TAINT_UNSIGNED_MODULE), "E" })
30 TRACE_EVENT(module_load,
32 TP_PROTO(struct module *mod),
37 __field( unsigned int, taints )
38 __string( name, mod->name )
42 __entry->taints = mod->taints;
43 __assign_str(name, mod->name);
46 TP_printk("%s %s", __get_str(name), show_module_flags(__entry->taints))
49 TRACE_EVENT(module_free,
51 TP_PROTO(struct module *mod),
56 __string( name, mod->name )
60 __assign_str(name, mod->name);
63 TP_printk("%s", __get_str(name))
66 #ifdef CONFIG_MODULE_UNLOAD
67 /* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */
69 DECLARE_EVENT_CLASS(module_refcnt,
71 TP_PROTO(struct module *mod, unsigned long ip),
76 __field( unsigned long, ip )
77 __field( int, refcnt )
78 __string( name, mod->name )
83 __entry->refcnt = __this_cpu_read(mod->refptr->incs) - __this_cpu_read(mod->refptr->decs);
84 __assign_str(name, mod->name);
87 TP_printk("%s call_site=%pf refcnt=%d",
88 __get_str(name), (void *)__entry->ip, __entry->refcnt)
91 DEFINE_EVENT(module_refcnt, module_get,
93 TP_PROTO(struct module *mod, unsigned long ip),
98 DEFINE_EVENT(module_refcnt, module_put,
100 TP_PROTO(struct module *mod, unsigned long ip),
104 #endif /* CONFIG_MODULE_UNLOAD */
106 TRACE_EVENT(module_request,
108 TP_PROTO(char *name, bool wait, unsigned long ip),
110 TP_ARGS(name, wait, ip),
113 __field( unsigned long, ip )
114 __field( bool, wait )
115 __string( name, name )
120 __entry->wait = wait;
121 __assign_str(name, name);
124 TP_printk("%s wait=%d call_site=%pf",
125 __get_str(name), (int)__entry->wait, (void *)__entry->ip)
128 #endif /* CONFIG_MODULES */
130 #endif /* _TRACE_MODULE_H */
132 /* This part must be outside protection */
133 #include <trace/define_trace.h>