instrumentation/events/lttng-module/lttng-statedump.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM lttng_statedump
   3
   4 #if !defined(LTTNG_TRACE_LTTNG_STATEDUMP_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define LTTNG_TRACE_LTTNG_STATEDUMP_H
   6
   7 #include <probes/lttng-tracepoint-event.h>
   8 #include <linux/nsproxy.h>
   9 #include <linux/pid_namespace.h>
  10 #include <linux/types.h>
  11 #include <linux/version.h>
  12
  13
  14 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
  15 #define lttng_proc_inum ns.inum
  16 #else
  17 #define lttng_proc_inum proc_inum
  18 #endif
  19
  20 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  21         TP_PROTO(struct lttng_session *session),
  22         TP_ARGS(session),
  23         TP_FIELDS()
  24 )
  25
  26 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  27         TP_PROTO(struct lttng_session *session),
  28         TP_ARGS(session),
  29         TP_FIELDS()
  30 )
  31
  32 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  33         TP_PROTO(struct lttng_session *session,
  34                 struct task_struct *p,
  35                 int type, int mode, int submode, int status,
  36                 struct pid_namespace *pid_ns),
  37         TP_ARGS(session, p, type, mode, submode, status, pid_ns),
  38         TP_FIELDS(
  39                 ctf_integer(pid_t, tid, p->pid)
  40                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
  41                 ctf_integer(pid_t, pid, p->tgid)
  42                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
  43                 ctf_integer(pid_t, ppid,
  44                         ({
  45                                 pid_t ret;
  46
  47                                 rcu_read_lock();
  48                                 ret = task_tgid_nr(p->real_parent);
  49                                 rcu_read_unlock();
  50                                 ret;
  51                         }))
  52                 ctf_integer(pid_t, vppid,
  53                         ({
  54                                 struct task_struct *parent;
  55                                 pid_t ret = 0;
  56
  57                                 if (pid_ns) {
  58                                         rcu_read_lock();
  59                                         parent = rcu_dereference(p->real_parent);
  60                                         ret = task_tgid_nr_ns(parent, pid_ns);
  61                                         rcu_read_unlock();
  62                                 }
  63                                 ret;
  64                         }))
  65                 ctf_array_text(char, name, p->comm, TASK_COMM_LEN)
  66                 ctf_integer(int, type, type)
  67                 ctf_integer(int, mode, mode)
  68                 ctf_integer(int, submode, submode)
  69                 ctf_integer(int, status, status)
  70                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
  71 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
  72                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->lttng_proc_inum : 0)
  73 #endif
  74         )
  75 )
  76
  77 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
  78         TP_PROTO(struct lttng_session *session,
  79                 struct task_struct *p, int fd, const char *filename,
  80                 unsigned int flags, fmode_t fmode),
  81         TP_ARGS(session, p, fd, filename, flags, fmode),
  82         TP_FIELDS(
  83                 ctf_integer(pid_t, pid, p->tgid)
  84                 ctf_integer(int, fd, fd)
  85                 ctf_integer_oct(unsigned int, flags, flags)
  86                 ctf_integer_hex(fmode_t, fmode, fmode)
  87                 ctf_string(filename, filename)
  88         )
  89 )
  90
  91 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
  92         TP_PROTO(struct lttng_session *session,
  93                 struct task_struct *p, struct vm_area_struct *map,
  94                 unsigned long inode),
  95         TP_ARGS(session, p, map, inode),
  96         TP_FIELDS(
  97                 ctf_integer(pid_t, pid, p->tgid)
  98                 ctf_integer_hex(unsigned long, start, map->vm_start)
  99                 ctf_integer_hex(unsigned long, end, map->vm_end)
 100                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 101                 ctf_integer(unsigned long, inode, inode)
 102                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 103         )
 104 )
 105
 106 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 107         TP_PROTO(struct lttng_session *session,
 108                 struct net_device *dev, struct in_ifaddr *ifa),
 109         TP_ARGS(session, dev, ifa),
 110         TP_FIELDS(
 111                 ctf_string(name, dev->name)
 112                 ctf_integer_network_hex(uint32_t, address_ipv4,
 113                         ifa ? ifa->ifa_address : 0U)
 114         )
 115 )
 116
 117 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 118         TP_PROTO(struct lttng_session *session,
 119                 dev_t dev, const char *diskname),
 120         TP_ARGS(session, dev, diskname),
 121         TP_FIELDS(
 122                 ctf_integer(dev_t, dev, dev)
 123                 ctf_string(diskname, diskname)
 124         )
 125 )
 126
 127 /* Called with desc->lock held */
 128 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 129         TP_PROTO(struct lttng_session *session,
 130                 unsigned int irq, const char *chip_name,
 131                 struct irqaction *action),
 132         TP_ARGS(session, irq, chip_name, action),
 133         TP_FIELDS(
 134                 ctf_integer(unsigned int, irq, irq)
 135                 ctf_string(name, chip_name)
 136                 ctf_string(action, action->name ? : "")
 137         )
 138 )
 139
 140 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 141
 142 /* This part must be outside protection */
 143 #include <probes/define_trace.h>