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_FORCED_MODULE), "F" }, \
26 { (1UL << TAINT_CRAP), "C" })
28 TRACE_EVENT(module_load,
30 TP_PROTO(struct module *mod),
35 __field( unsigned int, taints )
36 __string( name, mod->name )
40 __entry->taints = mod->taints;
41 __assign_str(name, mod->name);
44 TP_printk("%s %s", __get_str(name), show_module_flags(__entry->taints))
47 TRACE_EVENT(module_free,
49 TP_PROTO(struct module *mod),
54 __string( name, mod->name )
58 __assign_str(name, mod->name);
61 TP_printk("%s", __get_str(name))
64 #ifdef CONFIG_MODULE_UNLOAD
65 /* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */
67 DECLARE_EVENT_CLASS(module_refcnt,
69 TP_PROTO(struct module *mod, unsigned long ip),
74 __field( unsigned long, ip )
75 __field( int, refcnt )
76 __string( name, mod->name )
81 __entry->refcnt = __this_cpu_read(mod->refptr->incs) + __this_cpu_read(mod->refptr->decs);
82 __assign_str(name, mod->name);
85 TP_printk("%s call_site=%pf refcnt=%d",
86 __get_str(name), (void *)__entry->ip, __entry->refcnt)
89 DEFINE_EVENT(module_refcnt, module_get,
91 TP_PROTO(struct module *mod, unsigned long ip),
96 DEFINE_EVENT(module_refcnt, module_put,
98 TP_PROTO(struct module *mod, unsigned long ip),
102 #endif /* CONFIG_MODULE_UNLOAD */
104 TRACE_EVENT(module_request,
106 TP_PROTO(char *name, bool wait, unsigned long ip),
108 TP_ARGS(name, wait, ip),
111 __field( unsigned long, ip )
112 __field( bool, wait )
113 __string( name, name )
118 __entry->wait = wait;
119 __assign_str(name, name);
122 TP_printk("%s wait=%d call_site=%pf",
123 __get_str(name), (int)__entry->wait, (void *)__entry->ip)
126 #endif /* CONFIG_MODULES */
128 #endif /* _TRACE_MODULE_H */
130 /* This part must be outside protection */
131 #include <trace/define_trace.h>