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
  12 LTTNG_TRACEPOINT_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 LTTNG_TRACEPOINT_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 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_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 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
  90         TP_PROTO(struct lttng_session *session,
  91                 struct task_struct *p, int fd, const char *filename,
  92                 unsigned int flags, fmode_t fmode),
  93         TP_ARGS(session, p, fd, filename, flags, fmode),
  94         TP_STRUCT__entry(
  95                 __field(pid_t, pid)
  96                 __field(int, fd)
  97                 __field_oct(unsigned int, flags)
  98                 __field_hex(fmode_t, fmode)
  99                 __string(filename, filename)
 100         ),
 101         TP_fast_assign(
 102                 tp_assign(pid, p->tgid)
 103                 tp_assign(fd, fd)
 104                 tp_assign(flags, flags)
 105                 tp_assign(fmode, fmode)
 106                 tp_strcpy(filename, filename)
 107         ),
 108         TP_printk("")
 109 )
 110
 111 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
 112         TP_PROTO(struct lttng_session *session,
 113                 struct task_struct *p, struct vm_area_struct *map,
 114                 unsigned long inode),
 115         TP_ARGS(session, p, map, inode),
 116         TP_STRUCT__entry(
 117                 __field(pid_t, pid)
 118                 __field_hex(unsigned long, start)
 119                 __field_hex(unsigned long, end)
 120                 __field_hex(unsigned long, flags)
 121                 __field(unsigned long, inode)
 122                 __field(unsigned long, pgoff)
 123         ),
 124         TP_fast_assign(
 125                 tp_assign(pid, p->tgid)
 126                 tp_assign(start, map->vm_start)
 127                 tp_assign(end, map->vm_end)
 128                 tp_assign(flags, map->vm_flags)
 129                 tp_assign(inode, inode)
 130                 tp_assign(pgoff, map->vm_pgoff << PAGE_SHIFT)
 131         ),
 132         TP_printk("")
 133 )
 134
 135 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 136         TP_PROTO(struct lttng_session *session,
 137                 struct net_device *dev, struct in_ifaddr *ifa),
 138         TP_ARGS(session, dev, ifa),
 139         TP_STRUCT__entry(
 140                 __string(name, dev->name)
 141                 __field_network_hex(uint32_t, address_ipv4)
 142         ),
 143         TP_fast_assign(
 144                 tp_strcpy(name, dev->name)
 145                 tp_assign(address_ipv4, ifa ? ifa->ifa_address : 0U)
 146         ),
 147         TP_printk("")
 148 )
 149
 150 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 151         TP_PROTO(struct lttng_session *session,
 152                 dev_t dev, const char *diskname),
 153         TP_ARGS(session, dev, diskname),
 154         TP_STRUCT__entry(
 155                 __field(dev_t, dev)
 156                 __string(diskname, diskname)
 157         ),
 158         TP_fast_assign(
 159                 tp_assign(dev, dev)
 160                 tp_strcpy(diskname, diskname)
 161         ),
 162         TP_printk("")
 163 )
 164
 165 /* Called with desc->lock held */
 166 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 167         TP_PROTO(struct lttng_session *session,
 168                 unsigned int irq, const char *chip_name,
 169                 struct irqaction *action),
 170         TP_ARGS(session, irq, chip_name, action),
 171         TP_STRUCT__entry(
 172                 __field(unsigned int, irq)
 173                 __string(name, chip_name)
 174                 __string(action, action->name ? : "")
 175         ),
 176         TP_fast_assign(
 177                 tp_assign(irq, irq)
 178                 tp_strcpy(name, chip_name)
 179                 tp_strcpy(action, action->name ? : "")
 180         ),
 181         TP_printk("")
 182 )
 183
 184 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 185
 186 /* This part must be outside protection */
 187 #include "../../../probes/define_trace.h"