drivers/staging/lttng/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                                 if (pid_ns) {
  71                                         rcu_read_lock();
  72                                         parent = rcu_dereference(p->real_parent);
  73                                         ret = task_tgid_nr_ns(parent, pid_ns);
  74                                         rcu_read_unlock();
  75                                 }
  76                                 ret;
  77                         }))
  78                 tp_memcpy(name, p->comm, TASK_COMM_LEN)
  79                 tp_assign(type, type)
  80                 tp_assign(mode, mode)
  81                 tp_assign(submode, submode)
  82                 tp_assign(status, status)
  83                 tp_assign(ns_level, pid_ns ? pid_ns->level : 0)
  84         ),
  85         TP_printk("")
  86 )
  87
  88 TRACE_EVENT(lttng_statedump_file_descriptor,
  89         TP_PROTO(struct lttng_session *session,
  90                 struct task_struct *p, int fd, const char *filename),
  91         TP_ARGS(session, p, fd, filename),
  92         TP_STRUCT__entry(
  93                 __field(pid_t, pid)
  94                 __field(int, fd)
  95                 __string(filename, filename)
  96         ),
  97         TP_fast_assign(
  98                 tp_assign(pid, p->tgid)
  99                 tp_assign(fd, fd)
 100                 tp_strcpy(filename, filename)
 101         ),
 102         TP_printk("")
 103 )
 104
 105 TRACE_EVENT(lttng_statedump_vm_map,
 106         TP_PROTO(struct lttng_session *session,
 107                 struct task_struct *p, struct vm_area_struct *map,
 108                 unsigned long inode),
 109         TP_ARGS(session, p, map, inode),
 110         TP_STRUCT__entry(
 111                 __field(pid_t, pid)
 112                 __field_hex(unsigned long, start)
 113                 __field_hex(unsigned long, end)
 114                 __field_hex(unsigned long, flags)
 115                 __field(unsigned long, inode)
 116                 __field(unsigned long, pgoff)
 117         ),
 118         TP_fast_assign(
 119                 tp_assign(pid, p->tgid)
 120                 tp_assign(start, map->vm_start)
 121                 tp_assign(end, map->vm_end)
 122                 tp_assign(flags, map->vm_flags)
 123                 tp_assign(inode, inode)
 124                 tp_assign(pgoff, map->vm_pgoff << PAGE_SHIFT)
 125         ),
 126         TP_printk("")
 127 )
 128
 129 TRACE_EVENT(lttng_statedump_network_interface,
 130         TP_PROTO(struct lttng_session *session,
 131                 struct net_device *dev, struct in_ifaddr *ifa),
 132         TP_ARGS(session, dev, ifa),
 133         TP_STRUCT__entry(
 134                 __string(name, dev->name)
 135                 __field_network_hex(uint32_t, address_ipv4)
 136         ),
 137         TP_fast_assign(
 138                 tp_strcpy(name, dev->name)
 139                 tp_assign(address_ipv4, ifa ? ifa->ifa_address : 0U)
 140         ),
 141         TP_printk("")
 142 )
 143
 144 /* Called with desc->lock held */
 145 TRACE_EVENT(lttng_statedump_interrupt,
 146         TP_PROTO(struct lttng_session *session,
 147                 unsigned int irq, const char *chip_name,
 148                 struct irqaction *action),
 149         TP_ARGS(session, irq, chip_name, action),
 150         TP_STRUCT__entry(
 151                 __field(unsigned int, irq)
 152                 __string(name, chip_name)
 153                 __string(action, action->name ? : "")
 154         ),
 155         TP_fast_assign(
 156                 tp_assign(irq, irq)
 157                 tp_strcpy(name, chip_name)
 158                 tp_strcpy(action, action->name ? : "")
 159         ),
 160         TP_printk("")
 161 )
 162
 163 #endif /*  _TRACE_LTTNG_STATEDUMP_H */
 164
 165 /* This part must be outside protection */
 166 #include "../../../probes/define_trace.h"