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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#undef TRACE_SYSTEM
   3#define TRACE_SYSTEM lock
   4
   5#if !defined(_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
   6#define _TRACE_LOCK_H
   7
   8#include <linux/lockdep.h>
   9#include <linux/tracepoint.h>
  10
  11#ifdef CONFIG_LOCKDEP
  12
  13TRACE_EVENT(lock_acquire,
  14
  15        TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
  16                int trylock, int read, int check,
  17                struct lockdep_map *next_lock, unsigned long ip),
  18
  19        TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),
  20
  21        TP_STRUCT__entry(
  22                __field(unsigned int, flags)
  23                __string(name, lock->name)
  24                __field(void *, lockdep_addr)
  25        ),
  26
  27        TP_fast_assign(
  28                __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
  29                __assign_str(name, lock->name);
  30                __entry->lockdep_addr = lock;
  31        ),
  32
  33        TP_printk("%p %s%s%s", __entry->lockdep_addr,
  34                  (__entry->flags & 1) ? "try " : "",
  35                  (__entry->flags & 2) ? "read " : "",
  36                  __get_str(name))
  37);
  38
  39DECLARE_EVENT_CLASS(lock,
  40
  41        TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  42
  43        TP_ARGS(lock, ip),
  44
  45        TP_STRUCT__entry(
  46                __string(       name,   lock->name      )
  47                __field(        void *, lockdep_addr    )
  48        ),
  49
  50        TP_fast_assign(
  51                __assign_str(name, lock->name);
  52                __entry->lockdep_addr = lock;
  53        ),
  54
  55        TP_printk("%p %s",  __entry->lockdep_addr, __get_str(name))
  56);
  57
  58DEFINE_EVENT(lock, lock_release,
  59
  60        TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  61
  62        TP_ARGS(lock, ip)
  63);
  64
  65#ifdef CONFIG_LOCK_STAT
  66
  67DEFINE_EVENT(lock, lock_contended,
  68
  69        TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  70
  71        TP_ARGS(lock, ip)
  72);
  73
  74DEFINE_EVENT(lock, lock_acquired,
  75
  76        TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  77
  78        TP_ARGS(lock, ip)
  79);
  80
  81#endif
  82#endif
  83
  84#endif /* _TRACE_LOCK_H */
  85
  86/* This part must be outside protection */
  87#include <trace/define_trace.h>
  88