include/instrumentation/events/lttng-statedump.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   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 <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 <lttng/kernel-version.h>
  18 #include <wrapper/namespace.h>
  19 #include <wrapper/user_namespace.h>
  20 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0))
  21 #include <linux/time_namespace.h>
  22 #endif
  23
  24 #ifndef LTTNG_MNT_NS_MISSING_HEADER
  25 # ifndef ONCE_LTTNG_FS_MOUNT_H
  26 #  define ONCE_LTTNG_FS_MOUNT_H
  27 #  include <../fs/mount.h>
  28 # endif
  29 #endif
  30
  31 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  32         TP_PROTO(struct lttng_kernel_session *session),
  33         TP_ARGS(session),
  34         TP_FIELDS()
  35 )
  36
  37 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  38         TP_PROTO(struct lttng_kernel_session *session),
  39         TP_ARGS(session),
  40         TP_FIELDS()
  41 )
  42
  43 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  44         TP_PROTO(struct lttng_kernel_session *session,
  45                 struct task_struct *p,
  46                 int type, int mode, int submode, int status,
  47                 struct files_struct *files),
  48         TP_ARGS(session, p, type, mode, submode, status, files),
  49         TP_FIELDS(
  50                 ctf_integer(pid_t, tid, p->pid)
  51                 ctf_integer(pid_t, pid, p->tgid)
  52                 ctf_integer(pid_t, ppid,
  53                         ({
  54                                 pid_t ret;
  55
  56                                 rcu_read_lock();
  57                                 ret = task_tgid_nr(p->real_parent);
  58                                 rcu_read_unlock();
  59                                 ret;
  60                         }))
  61                 ctf_array_text(char, name, p->comm, TASK_COMM_LEN)
  62                 ctf_integer(int, type, type)
  63                 ctf_integer(int, mode, mode)
  64                 ctf_integer(int, submode, submode)
  65                 ctf_integer(int, status, status)
  66                 ctf_integer(unsigned int, cpu, task_cpu(p))
  67                 ctf_integer_hex(struct files_struct *, file_table_address, files)
  68         )
  69 )
  70
  71 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0))
  72 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_cgroup_ns,
  73         TP_PROTO(struct lttng_kernel_session *session,
  74                 struct task_struct *p,
  75                 struct cgroup_namespace *cgroup_ns),
  76         TP_ARGS(session, p, cgroup_ns),
  77         TP_FIELDS(
  78                 ctf_integer(pid_t, tid, p->pid)
  79                 ctf_integer(unsigned int, ns_inum, cgroup_ns ? cgroup_ns->lttng_ns_inum : 0)
  80         )
  81 )
  82 #endif
  83
  84 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_ipc_ns,
  85         TP_PROTO(struct lttng_kernel_session *session,
  86                 struct task_struct *p,
  87                 struct ipc_namespace *ipc_ns),
  88         TP_ARGS(session, p, ipc_ns),
  89         TP_FIELDS(
  90                 ctf_integer(pid_t, tid, p->pid)
  91 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
  92                 ctf_integer(unsigned int, ns_inum, ipc_ns ? ipc_ns->lttng_ns_inum : 0)
  93 #endif
  94         )
  95 )
  96
  97 #if !defined(LTTNG_MNT_NS_MISSING_HEADER)
  98 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_mnt_ns,
  99         TP_PROTO(struct lttng_kernel_session *session,
 100                 struct task_struct *p,
 101                 struct mnt_namespace *mnt_ns),
 102         TP_ARGS(session, p, mnt_ns),
 103         TP_FIELDS(
 104                 ctf_integer(pid_t, tid, p->pid)
 105 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 106                 ctf_integer(unsigned int, ns_inum, mnt_ns ? mnt_ns->lttng_ns_inum : 0)
 107 #endif
 108         )
 109 )
 110 #endif
 111
 112 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_net_ns,
 113         TP_PROTO(struct lttng_kernel_session *session,
 114                 struct task_struct *p,
 115                 struct net *net_ns),
 116         TP_ARGS(session, p, net_ns),
 117         TP_FIELDS(
 118                 ctf_integer(pid_t, tid, p->pid)
 119 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 120                 ctf_integer(unsigned int, ns_inum, net_ns ? net_ns->lttng_ns_inum : 0)
 121 #endif
 122         )
 123 )
 124
 125 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_pid_ns,
 126         TP_PROTO(struct lttng_kernel_session *session,
 127                 struct task_struct *p,
 128                 struct pid_namespace *pid_ns),
 129         TP_ARGS(session, p, pid_ns),
 130         TP_FIELDS(
 131                 ctf_integer(pid_t, tid, p->pid)
 132                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
 133                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
 134                 ctf_integer(pid_t, vppid,
 135                         ({
 136                                 struct task_struct *parent;
 137                                 pid_t ret = 0;
 138
 139                                 if (pid_ns) {
 140                                         rcu_read_lock();
 141                                         parent = rcu_dereference(p->real_parent);
 142                                         ret = task_tgid_nr_ns(parent, pid_ns);
 143                                         rcu_read_unlock();
 144                                 }
 145                                 ret;
 146                         }))
 147                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
 148 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 149                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->lttng_ns_inum : 0)
 150 #endif
 151         )
 152 )
 153
 154 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_user_ns,
 155         TP_PROTO(struct lttng_kernel_session *session,
 156                 struct task_struct *p,
 157                 struct user_namespace *user_ns),
 158         TP_ARGS(session, p, user_ns),
 159         TP_FIELDS(
 160                 ctf_integer(pid_t, tid, p->pid)
 161                 ctf_integer(uid_t, vuid, user_ns ? lttng_task_vuid(p, user_ns) : 0)
 162                 ctf_integer(gid_t, vgid, user_ns ? lttng_task_vgid(p, user_ns) : 0)
 163 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0))
 164                 ctf_integer(int, ns_level, user_ns ? user_ns->level : 0)
 165 #endif
 166 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 167                 ctf_integer(unsigned int, ns_inum, user_ns ? user_ns->lttng_ns_inum : 0)
 168 #endif
 169         )
 170 )
 171
 172 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_uts_ns,
 173         TP_PROTO(struct lttng_kernel_session *session,
 174                 struct task_struct *p,
 175                 struct uts_namespace *uts_ns),
 176         TP_ARGS(session, p, uts_ns),
 177         TP_FIELDS(
 178                 ctf_integer(pid_t, tid, p->pid)
 179 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 180                 ctf_integer(unsigned int, ns_inum, uts_ns ? uts_ns->lttng_ns_inum : 0)
 181 #endif
 182         )
 183 )
 184
 185 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0))
 186 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_time_ns,
 187         TP_PROTO(struct lttng_kernel_session *session,
 188                 struct task_struct *p,
 189                 struct time_namespace *time_ns),
 190         TP_ARGS(session, p, time_ns),
 191         TP_FIELDS(
 192                 ctf_integer(pid_t, tid, p->pid)
 193                 ctf_integer(unsigned int, ns_inum, time_ns ? time_ns->lttng_ns_inum : 0)
 194         )
 195 )
 196 #endif
 197
 198 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
 199         TP_PROTO(struct lttng_kernel_session *session,
 200                 struct files_struct *files,
 201                 int fd, const char *filename,
 202                 unsigned int flags, fmode_t fmode),
 203         TP_ARGS(session, files, fd, filename, flags, fmode),
 204         TP_FIELDS(
 205                 ctf_integer_hex(struct files_struct *, file_table_address, files)
 206                 ctf_integer(int, fd, fd)
 207                 ctf_integer_oct(unsigned int, flags, flags)
 208                 ctf_integer_hex(fmode_t, fmode, fmode)
 209                 ctf_string(filename, filename)
 210         )
 211 )
 212
 213 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
 214         TP_PROTO(struct lttng_kernel_session *session,
 215                 struct task_struct *p, struct vm_area_struct *map,
 216                 unsigned long inode),
 217         TP_ARGS(session, p, map, inode),
 218         TP_FIELDS(
 219                 ctf_integer(pid_t, pid, p->tgid)
 220                 ctf_integer_hex(unsigned long, start, map->vm_start)
 221                 ctf_integer_hex(unsigned long, end, map->vm_end)
 222                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 223                 ctf_integer(unsigned long, inode, inode)
 224                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 225         )
 226 )
 227
 228 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 229         TP_PROTO(struct lttng_kernel_session *session,
 230                 struct net_device *dev, struct in_ifaddr *ifa),
 231         TP_ARGS(session, dev, ifa),
 232         TP_FIELDS(
 233                 ctf_string(name, dev->name)
 234                 ctf_integer_network_hex(uint32_t, address_ipv4,
 235                         ifa ? ifa->ifa_address : 0U)
 236         )
 237 )
 238
 239 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 240         TP_PROTO(struct lttng_kernel_session *session,
 241                 dev_t dev, const char *diskname),
 242         TP_ARGS(session, dev, diskname),
 243         TP_FIELDS(
 244                 ctf_integer(dev_t, dev, dev)
 245                 ctf_string(diskname, diskname)
 246         )
 247 )
 248
 249 /* Called with desc->lock held */
 250 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 251         TP_PROTO(struct lttng_kernel_session *session,
 252                 unsigned int irq, const char *chip_name,
 253                 struct irqaction *action),
 254         TP_ARGS(session, irq, chip_name, action),
 255         TP_FIELDS(
 256                 ctf_integer(unsigned int, irq, irq)
 257                 ctf_string(name, chip_name)
 258                 ctf_string(action, action->name ? : "")
 259                 ctf_integer(pid_t, tid, action->thread ? action->thread->pid : 0)
 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_kernel_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 <lttng/define_trace.h>