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 #include <linux/types.h>
  11
  12 TRACE_EVENT(lttng_statedump_start,
  13         TP_PROTO(struct lttng_session *session),
  14         TP_ARGS(session),
  15         TP_STRUCT__entry(
  16         ),
  17         TP_fast_assign(
  18         ),
  19         TP_printk("")
  20 )
  21
  22 TRACE_EVENT(lttng_statedump_end,
  23         TP_PROTO(struct lttng_session *session),
  24         TP_ARGS(session),
  25         TP_STRUCT__entry(
  26         ),
  27         TP_fast_assign(
  28         ),
  29         TP_printk("")
  30 )
  31
  32 TRACE_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_STRUCT__entry(
  39                 __field(pid_t, tid)
  40                 __field(pid_t, vtid)
  41                 __field(pid_t, pid)
  42                 __field(pid_t, vpid)
  43                 __field(pid_t, ppid)
  44                 __field(pid_t, vppid)
  45                 __array_text(char, name, TASK_COMM_LEN)
  46                 __field(int, type)
  47                 __field(int, mode)
  48                 __field(int, submode)
  49                 __field(int, status)
  50                 __field(int, ns_level)
  51         ),
  52         TP_fast_assign(
  53                 tp_assign(tid, p->pid)
  54                 tp_assign(vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
  55                 tp_assign(pid, p->tgid)
  56                 tp_assign(vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
  57                 tp_assign(ppid,
  58                         ({
  59                                 pid_t ret;
  60
  61                                 rcu_read_lock();
  62                                 ret = task_tgid_nr(p->real_parent);
  63                                 rcu_read_unlock();
  64                                 ret;
  65                         }))
  66                 tp_assign(vppid,
  67                         ({
  68                                 struct task_struct *parent;
  69                                 pid_t ret = 0;
  70
  71                                 if (pid_ns) {
  72                                         rcu_read_lock();
  73                                         parent = rcu_dereference(p->real_parent);
  74                                         ret = task_tgid_nr_ns(parent, pid_ns);
  75                                         rcu_read_unlock();
  76                                 }
  77                                 ret;
  78                         }))
  79                 tp_memcpy(name, p->comm, TASK_COMM_LEN)
  80                 tp_assign(type, type)
  81                 tp_assign(mode, mode)
  82                 tp_assign(submode, submode)
  83                 tp_assign(status, status)
  84                 tp_assign(ns_level, pid_ns ? pid_ns->level : 0)
  85         ),
  86         TP_printk("")
  87 )
  88
  89 TRACE_EVENT(lttng_statedump_file_descriptor,
  90         TP_PROTO(struct lttng_session *session,
  91                 struct task_struct *p, int fd, const char *filename),
  92         TP_ARGS(session, p, fd, filename),
  93         TP_STRUCT__entry(
  94                 __field(pid_t, pid)
  95                 __field(int, fd)
  96                 __string(filename, filename)
  97         ),
  98         TP_fast_assign(
  99                 tp_assign(pid, p->tgid)
 100                 tp_assign(fd, fd)
 101                 tp_strcpy(filename, filename)
 102         ),
 103         TP_printk("")
 104 )
 105
 106 TRACE_EVENT(lttng_statedump_vm_map,
 107         TP_PROTO(struct lttng_session *session,
 108                 struct task_struct *p, struct vm_area_struct *map,
 109                 unsigned long inode),
 110         TP_ARGS(session, p, map, inode),
 111         TP_STRUCT__entry(
 112                 __field(pid_t, pid)
 113                 __field_hex(unsigned long, start)
 114                 __field_hex(unsigned long, end)
 115                 __field_hex(unsigned long, flags)
 116                 __field(unsigned long, inode)
 117                 __field(unsigned long, pgoff)
 118         ),
 119         TP_fast_assign(
 120                 tp_assign(pid, p->tgid)
 121                 tp_assign(start, map->vm_start)
 122                 tp_assign(end, map->vm_end)
 123                 tp_assign(flags, map->vm_flags)
 124                 tp_assign(inode, inode)
 125                 tp_assign(pgoff, map->vm_pgoff << PAGE_SHIFT)
 126         ),
 127         TP_printk("")
 128 )
 129
 130 TRACE_EVENT(lttng_statedump_network_interface,
 131         TP_PROTO(struct lttng_session *session,
 132                 struct net_device *dev, struct in_ifaddr *ifa),
 133         TP_ARGS(session, dev, ifa),
 134         TP_STRUCT__entry(
 135                 __string(name, dev->name)
 136                 __field_network_hex(uint32_t, address_ipv4)
 137         ),
 138         TP_fast_assign(
 139                 tp_strcpy(name, dev->name)
 140                 tp_assign(address_ipv4, ifa ? ifa->ifa_address : 0U)
 141         ),
 142         TP_printk("")
 143 )
 144
 145 TRACE_EVENT(lttng_statedump_block_device,
 146         TP_PROTO(struct lttng_session *session,
 147                 dev_t dev, const char *diskname),
 148         TP_ARGS(session, dev, diskname),
 149         TP_STRUCT__entry(
 150                 __field(dev_t, dev)
 151                 __string(diskname, diskname)
 152         ),
 153         TP_fast_assign(
 154                 tp_assign(dev, dev)
 155                 tp_strcpy(diskname, diskname)
 156         ),
 157         TP_printk("")
 158 )
 159
 160 /* Called with desc->lock held */
 161 TRACE_EVENT(lttng_statedump_interrupt,
 162         TP_PROTO(struct lttng_session *session,
 163                 unsigned int irq, const char *chip_name,
 164                 struct irqaction *action),
 165         TP_ARGS(session, irq, chip_name, action),
 166         TP_STRUCT__entry(
 167                 __field(unsigned int, irq)
 168                 __string(name, chip_name)
 169                 __string(action, action->name ? : "")
 170         ),
 171         TP_fast_assign(
 172                 tp_assign(irq, irq)
 173                 tp_strcpy(name, chip_name)
 174                 tp_strcpy(action, action->name ? : "")
 175         ),
 176         TP_printk("")
 177 )
 178
 179 #endif /*  _TRACE_LTTNG_STATEDUMP_H */
 180
 181 /* This part must be outside protection */
 182 #include "../../../probes/define_trace.h"