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/cgroup.h>
  11 #include <linux/ipc_namespace.h>
  12 #include <net/net_namespace.h>
  13 #include <linux/pid_namespace.h>
  14 #include <linux/user_namespace.h>
  15 #include <linux/utsname.h>
  16 #include <linux/types.h>
  17 #include <linux/version.h>
  18 #include <wrapper/namespace.h>
  19 #include <wrapper/user_namespace.h>
  20
  21 #ifndef LTTNG_MNT_NS_MISSING_HEADER
  22 # ifndef ONCE_LTTNG_FS_MOUNT_H
  23 #  define ONCE_LTTNG_FS_MOUNT_H
  24 #  include <../fs/mount.h>
  25 # endif
  26 #endif
  27
  28 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  29         TP_PROTO(struct lttng_session *session),
  30         TP_ARGS(session),
  31         TP_FIELDS()
  32 )
  33
  34 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  35         TP_PROTO(struct lttng_session *session),
  36         TP_ARGS(session),
  37         TP_FIELDS()
  38 )
  39
  40 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  41         TP_PROTO(struct lttng_session *session,
  42                 struct task_struct *p,
  43                 int type, int mode, int submode, int status,
  44                 struct pid_namespace *pid_ns),
  45         TP_ARGS(session, p, type, mode, submode, status, pid_ns),
  46         TP_FIELDS(
  47                 ctf_integer(pid_t, tid, p->pid)
  48                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
  49                 ctf_integer(pid_t, pid, p->tgid)
  50                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
  51                 ctf_integer(pid_t, ppid,
  52                         ({
  53                                 pid_t ret;
  54
  55                                 rcu_read_lock();
  56                                 ret = task_tgid_nr(p->real_parent);
  57                                 rcu_read_unlock();
  58                                 ret;
  59                         }))
  60                 ctf_integer(pid_t, vppid,
  61                         ({
  62                                 struct task_struct *parent;
  63                                 pid_t ret = 0;
  64
  65                                 if (pid_ns) {
  66                                         rcu_read_lock();
  67                                         parent = rcu_dereference(p->real_parent);
  68                                         ret = task_tgid_nr_ns(parent, pid_ns);
  69                                         rcu_read_unlock();
  70                                 }
  71                                 ret;
  72                         }))
  73                 ctf_array_text(char, name, p->comm, TASK_COMM_LEN)
  74                 ctf_integer(int, type, type)
  75                 ctf_integer(int, mode, mode)
  76                 ctf_integer(int, submode, submode)
  77                 ctf_integer(int, status, status)
  78                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
  79 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
  80                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->lttng_proc_inum : 0)
  81 #endif
  82                 ctf_integer(unsigned int, cpu, task_cpu(p))
  83         )
  84 )
  85
  86 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0))
  87 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_cgroup_ns,
  88         TP_PROTO(struct lttng_session *session,
  89                 struct task_struct *p,
  90                 struct cgroup_namespace *cgroup_ns),
  91         TP_ARGS(session, p, cgroup_ns),
  92         TP_FIELDS(
  93                 ctf_integer(pid_t, tid, p->pid)
  94                 ctf_integer(unsigned int, ns_inum, cgroup_ns ? cgroup_ns->lttng_ns_inum : 0)
  95         )
  96 )
  97 #endif
  98
  99 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_ipc_ns,
 100         TP_PROTO(struct lttng_session *session,
 101                 struct task_struct *p,
 102                 struct ipc_namespace *ipc_ns),
 103         TP_ARGS(session, p, ipc_ns),
 104         TP_FIELDS(
 105                 ctf_integer(pid_t, tid, p->pid)
 106 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 107                 ctf_integer(unsigned int, ns_inum, ipc_ns ? ipc_ns->lttng_ns_inum : 0)
 108 #endif
 109         )
 110 )
 111
 112 #if !defined(LTTNG_MNT_NS_MISSING_HEADER)
 113 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_mnt_ns,
 114         TP_PROTO(struct lttng_session *session,
 115                 struct task_struct *p,
 116                 struct mnt_namespace *mnt_ns),
 117         TP_ARGS(session, p, mnt_ns),
 118         TP_FIELDS(
 119                 ctf_integer(pid_t, tid, p->pid)
 120 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 121                 ctf_integer(unsigned int, ns_inum, mnt_ns ? mnt_ns->lttng_ns_inum : 0)
 122 #endif
 123         )
 124 )
 125 #endif
 126
 127 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_net_ns,
 128         TP_PROTO(struct lttng_session *session,
 129                 struct task_struct *p,
 130                 struct net *net_ns),
 131         TP_ARGS(session, p, net_ns),
 132         TP_FIELDS(
 133                 ctf_integer(pid_t, tid, p->pid)
 134 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 135                 ctf_integer(unsigned int, ns_inum, net_ns ? net_ns->lttng_ns_inum : 0)
 136 #endif
 137         )
 138 )
 139
 140 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_pid_ns,
 141         TP_PROTO(struct lttng_session *session,
 142                 struct task_struct *p,
 143                 struct pid_namespace *pid_ns),
 144         TP_ARGS(session, p, pid_ns),
 145         TP_FIELDS(
 146                 ctf_integer(pid_t, tid, p->pid)
 147                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
 148                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
 149                 ctf_integer(pid_t, vppid,
 150                         ({
 151                                 struct task_struct *parent;
 152                                 pid_t ret = 0;
 153
 154                                 if (pid_ns) {
 155                                         rcu_read_lock();
 156                                         parent = rcu_dereference(p->real_parent);
 157                                         ret = task_tgid_nr_ns(parent, pid_ns);
 158                                         rcu_read_unlock();
 159                                 }
 160                                 ret;
 161                         }))
 162                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
 163 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 164                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->lttng_ns_inum : 0)
 165 #endif
 166         )
 167 )
 168
 169 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_user_ns,
 170         TP_PROTO(struct lttng_session *session,
 171                 struct task_struct *p,
 172                 struct user_namespace *user_ns),
 173         TP_ARGS(session, p, user_ns),
 174         TP_FIELDS(
 175                 ctf_integer(pid_t, tid, p->pid)
 176                 ctf_integer(uid_t, vuid, user_ns ? lttng_task_vuid(p, user_ns) : 0)
 177                 ctf_integer(gid_t, vgid, user_ns ? lttng_task_vgid(p, user_ns) : 0)
 178 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
 179                 ctf_integer(int, ns_level, user_ns ? user_ns->level : 0)
 180 #endif
 181 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 182                 ctf_integer(unsigned int, ns_inum, user_ns ? user_ns->lttng_ns_inum : 0)
 183 #endif
 184         )
 185 )
 186
 187 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_uts_ns,
 188         TP_PROTO(struct lttng_session *session,
 189                 struct task_struct *p,
 190                 struct uts_namespace *uts_ns),
 191         TP_ARGS(session, p, uts_ns),
 192         TP_FIELDS(
 193                 ctf_integer(pid_t, tid, p->pid)
 194 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 195                 ctf_integer(unsigned int, ns_inum, uts_ns ? uts_ns->lttng_ns_inum : 0)
 196 #endif
 197         )
 198 )
 199
 200 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
 201         TP_PROTO(struct lttng_session *session,
 202                 struct task_struct *p, int fd, const char *filename,
 203                 unsigned int flags, fmode_t fmode),
 204         TP_ARGS(session, p, fd, filename, flags, fmode),
 205         TP_FIELDS(
 206                 ctf_integer(pid_t, pid, p->tgid)
 207                 ctf_integer(int, fd, fd)
 208                 ctf_integer_oct(unsigned int, flags, flags)
 209                 ctf_integer_hex(fmode_t, fmode, fmode)
 210                 ctf_string(filename, filename)
 211         )
 212 )
 213
 214 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
 215         TP_PROTO(struct lttng_session *session,
 216                 struct task_struct *p, struct vm_area_struct *map,
 217                 unsigned long inode),
 218         TP_ARGS(session, p, map, inode),
 219         TP_FIELDS(
 220                 ctf_integer(pid_t, pid, p->tgid)
 221                 ctf_integer_hex(unsigned long, start, map->vm_start)
 222                 ctf_integer_hex(unsigned long, end, map->vm_end)
 223                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 224                 ctf_integer(unsigned long, inode, inode)
 225                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 226         )
 227 )
 228
 229 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 230         TP_PROTO(struct lttng_session *session,
 231                 struct net_device *dev, struct in_ifaddr *ifa),
 232         TP_ARGS(session, dev, ifa),
 233         TP_FIELDS(
 234                 ctf_string(name, dev->name)
 235                 ctf_integer_network_hex(uint32_t, address_ipv4,
 236                         ifa ? ifa->ifa_address : 0U)
 237         )
 238 )
 239
 240 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 241         TP_PROTO(struct lttng_session *session,
 242                 dev_t dev, const char *diskname),
 243         TP_ARGS(session, dev, diskname),
 244         TP_FIELDS(
 245                 ctf_integer(dev_t, dev, dev)
 246                 ctf_string(diskname, diskname)
 247         )
 248 )
 249
 250 /* Called with desc->lock held */
 251 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 252         TP_PROTO(struct lttng_session *session,
 253                 unsigned int irq, const char *chip_name,
 254                 struct irqaction *action),
 255         TP_ARGS(session, irq, chip_name, action),
 256         TP_FIELDS(
 257                 ctf_integer(unsigned int, irq, irq)
 258                 ctf_string(name, chip_name)
 259                 ctf_string(action, action->name ? : "")
 260         )
 261 )
 262
 263 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64)
 264
 265 #define LTTNG_HAVE_STATEDUMP_CPU_TOPOLOGY
 266
 267 LTTNG_TRACEPOINT_EVENT(lttng_statedump_cpu_topology,
 268         TP_PROTO(struct lttng_session *session, struct cpuinfo_x86 *c),
 269         TP_ARGS(session, c),
 270         TP_FIELDS(
 271                 ctf_string(architecture, "x86")
 272                 ctf_integer(uint16_t, cpu_id, c->cpu_index)
 273                 ctf_string(vendor, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown")
 274                 ctf_integer(uint8_t, family, c->x86)
 275                 ctf_integer(uint8_t, model, c->x86_model)
 276                 ctf_string(model_name, c->x86_model_id[0] ? c->x86_model_id : "unknown")
 277                 ctf_integer(uint16_t, physical_id, c->phys_proc_id)
 278                 ctf_integer(uint16_t, core_id, c->cpu_core_id)
 279                 ctf_integer(uint16_t, cores, c->booted_cores)
 280         )
 281 )
 282 #endif /* CONFIG_X86_32 || CONFIG_X86_64 */
 283
 284 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 285
 286 /* This part must be outside protection */
 287 #include <probes/define_trace.h>