LXR linux/include/trace/events/module.h

   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
  11struct 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
  18TRACE_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
  37TRACE_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
  54DECLARE_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
  76DEFINE_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
  83DEFINE_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
  90TRACE_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