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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM lttng_statedump
   4
   5 #if !defined(LTTNG_TRACE_LTTNG_STATEDUMP_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define LTTNG_TRACE_LTTNG_STATEDUMP_H
   7
   8 #include <probes/lttng-tracepoint-event.h>
   9 #include <linux/nsproxy.h>
  10 #include <linux/pid_namespace.h>
  11 #include <linux/types.h>
  12 #include <linux/version.h>
  13
  14
  15 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
  16 #define lttng_proc_inum ns.inum
  17 #else
  18 #define lttng_proc_inum proc_inum
  19 #endif
  20
  21 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  22         TP_PROTO(struct lttng_session *session),
  23         TP_ARGS(session),
  24         TP_FIELDS()
  25 )
  26
  27 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  28         TP_PROTO(struct lttng_session *session),
  29         TP_ARGS(session),
  30         TP_FIELDS()
  31 )
  32
  33 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  34         TP_PROTO(struct lttng_session *session,
  35                 struct task_struct *p,
  36                 int type, int mode, int submode, int status,
  37                 struct pid_namespace *pid_ns),
  38         TP_ARGS(session, p, type, mode, submode, status, pid_ns),
  39         TP_FIELDS(
  40                 ctf_integer(pid_t, tid, p->pid)
  41                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
  42                 ctf_integer(pid_t, pid, p->tgid)
  43                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
  44                 ctf_integer(pid_t, ppid,
  45                         ({
  46                                 pid_t ret;
  47
  48                                 rcu_read_lock();
  49                                 ret = task_tgid_nr(p->real_parent);
  50                                 rcu_read_unlock();
  51                                 ret;
  52                         }))
  53                 ctf_integer(pid_t, vppid,
  54                         ({
  55                                 struct task_struct *parent;
  56                                 pid_t ret = 0;
  57
  58                                 if (pid_ns) {
  59                                         rcu_read_lock();
  60                                         parent = rcu_dereference(p->real_parent);
  61                                         ret = task_tgid_nr_ns(parent, pid_ns);
  62                                         rcu_read_unlock();
  63                                 }
  64                                 ret;
  65                         }))
  66                 ctf_array_text(char, name, p->comm, TASK_COMM_LEN)
  67                 ctf_integer(int, type, type)
  68                 ctf_integer(int, mode, mode)
  69                 ctf_integer(int, submode, submode)
  70                 ctf_integer(int, status, status)
  71                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
  72 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
  73                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->lttng_proc_inum : 0)
  74 #endif
  75                 ctf_integer(unsigned int, cpu, task_cpu(p))
  76         )
  77 )
  78
  79 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
  80         TP_PROTO(struct lttng_session *session,
  81                 struct task_struct *p, int fd, const char *filename,
  82                 unsigned int flags, fmode_t fmode),
  83         TP_ARGS(session, p, fd, filename, flags, fmode),
  84         TP_FIELDS(
  85                 ctf_integer(pid_t, pid, p->tgid)
  86                 ctf_integer(int, fd, fd)
  87                 ctf_integer_oct(unsigned int, flags, flags)
  88                 ctf_integer_hex(fmode_t, fmode, fmode)
  89                 ctf_string(filename, filename)
  90         )
  91 )
  92
  93 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
  94         TP_PROTO(struct lttng_session *session,
  95                 struct task_struct *p, struct vm_area_struct *map,
  96                 unsigned long inode),
  97         TP_ARGS(session, p, map, inode),
  98         TP_FIELDS(
  99                 ctf_integer(pid_t, pid, p->tgid)
 100                 ctf_integer_hex(unsigned long, start, map->vm_start)
 101                 ctf_integer_hex(unsigned long, end, map->vm_end)
 102                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 103                 ctf_integer(unsigned long, inode, inode)
 104                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 105         )
 106 )
 107
 108 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 109         TP_PROTO(struct lttng_session *session,
 110                 struct net_device *dev, struct in_ifaddr *ifa),
 111         TP_ARGS(session, dev, ifa),
 112         TP_FIELDS(
 113                 ctf_string(name, dev->name)
 114                 ctf_integer_network_hex(uint32_t, address_ipv4,
 115                         ifa ? ifa->ifa_address : 0U)
 116         )
 117 )
 118
 119 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 120         TP_PROTO(struct lttng_session *session,
 121                 dev_t dev, const char *diskname),
 122         TP_ARGS(session, dev, diskname),
 123         TP_FIELDS(
 124                 ctf_integer(dev_t, dev, dev)
 125                 ctf_string(diskname, diskname)
 126         )
 127 )
 128
 129 /* Called with desc->lock held */
 130 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 131         TP_PROTO(struct lttng_session *session,
 132                 unsigned int irq, const char *chip_name,
 133                 struct irqaction *action),
 134         TP_ARGS(session, irq, chip_name, action),
 135         TP_FIELDS(
 136                 ctf_integer(unsigned int, irq, irq)
 137                 ctf_string(name, chip_name)
 138                 ctf_string(action, action->name ? : "")
 139         )
 140 )
 141
 142 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64)
 143 LTTNG_TRACEPOINT_EVENT(lttng_statedump_cpu_topology,
 144         TP_PROTO(struct lttng_session *session, struct cpuinfo_x86 *c),
 145         TP_ARGS(session, c),
 146         TP_FIELDS(
 147                 ctf_string(architecture, "x86")
 148                 ctf_integer(uint16_t, cpu_id, c->cpu_index)
 149                 ctf_string(vendor, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown")
 150                 ctf_integer(uint8_t, family, c->x86)
 151                 ctf_integer(uint8_t, model, c->x86_model)
 152                 ctf_string(model_name, c->x86_model_id[0] ? c->x86_model_id : "unknown")
 153                 ctf_integer(uint16_t, physical_id, c->phys_proc_id)
 154                 ctf_integer(uint16_t, core_id, c->cpu_core_id)
 155                 ctf_integer(uint16_t, cores, c->booted_cores)
 156         )
 157 )
 158 #endif /* CONFIG_X86_32 || CONFIG_X86_64 */
 159
 160 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 161
 162 /* This part must be outside protection */
 163 #include <probes/define_trace.h>