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

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM lttng_statedump
   3
   4 #if !defined(_TRACE_LTTNG_STATEDUMP_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_LTTNG_STATEDUMP_H
   6
   7 #include <linux/tracepoint.h>
   8 #include <linux/nsproxy.h>
   9 #include <linux/pid_namespace.h>
  10
  11 TRACE_EVENT(lttng_statedump_start,
  12         TP_PROTO(struct lttng_session *session),
  13         TP_ARGS(session),
  14         TP_STRUCT__entry(
  15         ),
  16         TP_fast_assign(
  17         ),
  18         TP_printk("")
  19 )
  20
  21 TRACE_EVENT(lttng_statedump_end,
  22         TP_PROTO(struct lttng_session *session),
  23         TP_ARGS(session),
  24         TP_STRUCT__entry(
  25         ),
  26         TP_fast_assign(
  27         ),
  28         TP_printk("")
  29 )
  30
  31 TRACE_EVENT(lttng_statedump_process_state,
  32         TP_PROTO(struct lttng_session *session,
  33                 struct task_struct *p,
  34                 int type, int mode, int submode, int status,
  35                 struct pid_namespace *pid_ns),
  36         TP_ARGS(session, p, type, mode, submode, status, pid_ns),
  37         TP_STRUCT__entry(
  38                 __field(pid_t, tid)
  39                 __field(pid_t, vtid)
  40                 __field(pid_t, pid)
  41                 __field(pid_t, vpid)
  42                 __field(pid_t, ppid)
  43                 __field(pid_t, vppid)
  44                 __array_text(char, name, TASK_COMM_LEN)
  45                 __field(int, type)
  46                 __field(int, mode)
  47                 __field(int, submode)
  48                 __field(int, status)
  49                 __field(int, ns_level)
  50         ),
  51         TP_fast_assign(
  52                 tp_assign(tid, p->pid)
  53                 tp_assign(vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
  54                 tp_assign(pid, p->tgid)
  55                 tp_assign(vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
  56                 tp_assign(ppid,
  57                         ({
  58                                 pid_t ret;
  59
  60                                 rcu_read_lock();
  61                                 ret = task_tgid_nr(p->real_parent);
  62                                 rcu_read_unlock();
  63                                 ret;
  64                         }))
  65                 tp_assign(vppid,
  66                         ({
  67                                 struct task_struct *parent;
  68                                 pid_t ret = 0;
  69
  70                                 rcu_read_lock();
  71                                 parent = rcu_dereference(p->real_parent);
  72                                 ret = task_tgid_nr_ns(parent, pid_ns);
  73                                 rcu_read_unlock();
  74                                 ret;
  75                         }))
  76                 tp_memcpy(name, p->comm, TASK_COMM_LEN)
  77                 tp_assign(type, type)
  78                 tp_assign(mode, mode)
  79                 tp_assign(submode, submode)
  80                 tp_assign(status, status)
  81                 tp_assign(ns_level, pid_ns ? pid_ns->level : 0)
  82         ),
  83         TP_printk("")
  84 )
  85
  86 TRACE_EVENT(lttng_statedump_file_descriptor,
  87         TP_PROTO(struct lttng_session *session,
  88                 struct task_struct *p, int fd, const char *filename),
  89         TP_ARGS(session, p, fd, filename),
  90         TP_STRUCT__entry(
  91                 __field(pid_t, pid)
  92                 __field(int, fd)
  93                 __string(filename, filename)
  94         ),
  95         TP_fast_assign(
  96                 tp_assign(pid, p->tgid)
  97                 tp_assign(fd, fd)
  98                 tp_strcpy(filename, filename)
  99         ),
 100         TP_printk("")
 101 )
 102
 103 TRACE_EVENT(lttng_statedump_vm_map,
 104         TP_PROTO(struct lttng_session *session,
 105                 struct task_struct *p, struct vm_area_struct *map,
 106                 unsigned long inode),
 107         TP_ARGS(session, p, map, inode),
 108         TP_STRUCT__entry(
 109                 __field(pid_t, pid)
 110                 __field_hex(unsigned long, start)
 111                 __field_hex(unsigned long, end)
 112                 __field_hex(unsigned long, flags)
 113                 __field(unsigned long, inode)
 114                 __field(unsigned long, pgoff)
 115         ),
 116         TP_fast_assign(
 117                 tp_assign(pid, p->tgid)
 118                 tp_assign(start, map->vm_start)
 119                 tp_assign(end, map->vm_end)
 120                 tp_assign(flags, map->vm_flags)
 121                 tp_assign(inode, inode)
 122                 tp_assign(pgoff, map->vm_pgoff << PAGE_SHIFT)
 123         ),
 124         TP_printk("")
 125 )
 126
 127 TRACE_EVENT(lttng_statedump_network_interface,
 128         TP_PROTO(struct lttng_session *session,
 129                 struct net_device *dev, struct in_ifaddr *ifa),
 130         TP_ARGS(session, dev, ifa),
 131         TP_STRUCT__entry(
 132                 __string(name, dev->name)
 133                 __field_network_hex(uint32_t, address_ipv4)
 134         ),
 135         TP_fast_assign(
 136                 tp_strcpy(name, dev->name)
 137                 tp_assign(address_ipv4, ifa ? ifa->ifa_address : 0U)
 138         ),
 139         TP_printk("")
 140 )
 141
 142 /* Called with desc->lock held */
 143 TRACE_EVENT(lttng_statedump_interrupt,
 144         TP_PROTO(struct lttng_session *session,
 145                 unsigned int irq, const char *chip_name,
 146                 struct irqaction *action),
 147         TP_ARGS(session, irq, chip_name, action),
 148         TP_STRUCT__entry(
 149                 __field(unsigned int, irq)
 150                 __string(name, chip_name)
 151                 __string(action, action->name)
 152         ),
 153         TP_fast_assign(
 154                 tp_assign(irq, irq)
 155                 tp_strcpy(name, chip_name)
 156                 tp_strcpy(action, action->name)
 157         ),
 158         TP_printk("")
 159 )
 160
 161 #endif /*  _TRACE_LTTNG_STATEDUMP_H */
 162
 163 /* This part must be outside protection */
 164 #include "../../../probes/define_trace.h"