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   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