instrumentation/events/lttng-module/lock.h

   1 #include <linux/version.h>
   2
   3 #undef TRACE_SYSTEM
   4 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
   5 #define TRACE_SYSTEM lock
   6 #else
   7 #define TRACE_SYSTEM lockdep
   8 #define TRACE_INCLUDE_FILE lock
   9 #if defined(_TRACE_LOCKDEP_H)
  10 #define LTTNG_TRACE_LOCK_H
  11 #endif
  12 #endif
  13
  14 #if !defined(LTTNG_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
  15 #define LTTNG_TRACE_LOCK_H
  16
  17 #include <linux/lockdep.h>
  18 #include <probes/lttng-tracepoint-event.h>
  19
  20 #ifdef CONFIG_LOCKDEP
  21
  22 LTTNG_TRACEPOINT_EVENT(lock_acquire,
  23
  24         TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
  25                 int trylock, int read, int check,
  26                 struct lockdep_map *next_lock, unsigned long ip),
  27
  28         TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),
  29
  30         TP_FIELDS(
  31                 ctf_integer(unsigned int, flags, (trylock ? 1 : 0) | (read ? 2 : 0))
  32                 ctf_string(name, lock->name)
  33 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
  34                 ctf_integer_hex(void *, lockdep_addr, lock)
  35 #endif
  36         )
  37 )
  38
  39 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
  40
  41 LTTNG_TRACEPOINT_EVENT_CLASS(lock,
  42
  43         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  44
  45         TP_ARGS(lock, ip),
  46
  47         TP_FIELDS(
  48                 ctf_string(name, lock->name)
  49                 ctf_integer_hex(void *, lockdep_addr, lock)
  50         )
  51 )
  52
  53 LTTNG_TRACEPOINT_EVENT_INSTANCE(lock, lock_release,
  54
  55         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  56
  57         TP_ARGS(lock, ip)
  58 )
  59
  60 #ifdef CONFIG_LOCK_STAT
  61
  62 LTTNG_TRACEPOINT_EVENT_INSTANCE(lock, lock_contended,
  63
  64         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  65
  66         TP_ARGS(lock, ip)
  67 )
  68
  69 LTTNG_TRACEPOINT_EVENT_INSTANCE(lock, lock_acquired,
  70
  71         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  72
  73         TP_ARGS(lock, ip)
  74 )
  75
  76 #endif
  77
  78 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
  79
  80 LTTNG_TRACEPOINT_EVENT(lock_release,
  81
  82         TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
  83
  84         TP_ARGS(lock, nested, ip),
  85
  86         TP_FIELDS(
  87                 ctf_string(name, lock->name)
  88 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
  89                 ctf_integer_hex(void *, lockdep_addr, lock)
  90 #endif
  91         )
  92 )
  93
  94 #ifdef CONFIG_LOCK_STAT
  95
  96 LTTNG_TRACEPOINT_EVENT(lock_contended,
  97
  98         TP_PROTO(struct lockdep_map *lock, unsigned long ip),
  99
 100         TP_ARGS(lock, ip),
 101
 102         TP_FIELDS(
 103                 ctf_string(name, lock->name)
 104 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 105                 ctf_integer_hex(void *, lockdep_addr, lock)
 106 #endif
 107         )
 108 )
 109
 110 LTTNG_TRACEPOINT_EVENT(lock_acquired,
 111
 112         TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
 113
 114         TP_ARGS(lock, ip, waittime),
 115
 116         TP_FIELDS(
 117                 ctf_string(name, lock->name)
 118 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 119                 ctf_integer(s64, wait_nsec, wait_nsec)
 120                 ctf_integer_hex(void *, lockdep_addr, lock)
 121 #else
 122                 ctf_integer(unsigned long, wait_usec, (unsigned long) waittime)
 123                 ctf_integer(unsigned long, wait_nsec_rem, do_div(waittime, NSEC_PER_USEC))
 124 #endif
 125         )
 126 )
 127
 128 #endif
 129
 130 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 131
 132 #endif
 133
 134 #endif /* LTTNG_TRACE_LOCK_H */
 135
 136 /* This part must be outside protection */
 137 #include <probes/define_trace.h>