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         LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0))
  22 #include <linux/time_namespace.h>
  23 #endif
  24
  25 #ifndef LTTNG_MNT_NS_MISSING_HEADER
  26 # ifndef ONCE_LTTNG_FS_MOUNT_H
  27 #  define ONCE_LTTNG_FS_MOUNT_H
  28 #  include <../fs/mount.h>
  29 # endif
  30 #endif
  31
  32 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  33         TP_PROTO(struct lttng_kernel_session *session),
  34         TP_ARGS(session),
  35         TP_FIELDS()
  36 )
  37
  38 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  39         TP_PROTO(struct lttng_kernel_session *session),
  40         TP_ARGS(session),
  41         TP_FIELDS()
  42 )
  43
  44 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  45         TP_PROTO(struct lttng_kernel_session *session,
  46                 struct task_struct *p,
  47                 int type, int mode, int submode, int status,
  48                 struct files_struct *files),
  49         TP_ARGS(session, p, type, mode, submode, status, files),
  50         TP_FIELDS(
  51                 ctf_integer(pid_t, tid, p->pid)
  52                 ctf_integer(pid_t, pid, p->tgid)
  53                 ctf_integer(pid_t, ppid,
  54                         ({
  55                                 pid_t ret;
  56
  57                                 rcu_read_lock();
  58                                 ret = task_tgid_nr(p->real_parent);
  59                                 rcu_read_unlock();
  60                                 ret;
  61                         }))
  62                 ctf_array_text(char, name, p->comm, TASK_COMM_LEN)
  63                 ctf_integer(int, type, type)
  64                 ctf_integer(int, mode, mode)
  65                 ctf_integer(int, submode, submode)
  66                 ctf_integer(int, status, status)
  67                 ctf_integer(unsigned int, cpu, task_cpu(p))
  68                 ctf_integer_hex(struct files_struct *, file_table_address, files)
  69         )
  70 )
  71
  72 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0))
  73 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_cgroup_ns,
  74         TP_PROTO(struct lttng_kernel_session *session,
  75                 struct task_struct *p,
  76                 struct cgroup_namespace *cgroup_ns),
  77         TP_ARGS(session, p, cgroup_ns),
  78         TP_FIELDS(
  79                 ctf_integer(pid_t, tid, p->pid)
  80                 ctf_integer(unsigned int, ns_inum, cgroup_ns ? cgroup_ns->lttng_ns_inum : 0)
  81         )
  82 )
  83 #endif
  84
  85 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_ipc_ns,
  86         TP_PROTO(struct lttng_kernel_session *session,
  87                 struct task_struct *p,
  88                 struct ipc_namespace *ipc_ns),
  89         TP_ARGS(session, p, ipc_ns),
  90         TP_FIELDS(
  91                 ctf_integer(pid_t, tid, p->pid)
  92 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
  93                 ctf_integer(unsigned int, ns_inum, ipc_ns ? ipc_ns->lttng_ns_inum : 0)
  94 #endif
  95         )
  96 )
  97
  98 #if !defined(LTTNG_MNT_NS_MISSING_HEADER)
  99 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_mnt_ns,
 100         TP_PROTO(struct lttng_kernel_session *session,
 101                 struct task_struct *p,
 102                 struct mnt_namespace *mnt_ns),
 103         TP_ARGS(session, p, mnt_ns),
 104         TP_FIELDS(
 105                 ctf_integer(pid_t, tid, p->pid)
 106 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 107                 ctf_integer(unsigned int, ns_inum, mnt_ns ? mnt_ns->lttng_ns_inum : 0)
 108 #endif
 109         )
 110 )
 111 #endif
 112
 113 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_net_ns,
 114         TP_PROTO(struct lttng_kernel_session *session,
 115                 struct task_struct *p,
 116                 struct net *net_ns),
 117         TP_ARGS(session, p, net_ns),
 118         TP_FIELDS(
 119                 ctf_integer(pid_t, tid, p->pid)
 120 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 121                 ctf_integer(unsigned int, ns_inum, net_ns ? net_ns->lttng_ns_inum : 0)
 122 #endif
 123         )
 124 )
 125
 126 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_pid_ns,
 127         TP_PROTO(struct lttng_kernel_session *session,
 128                 struct task_struct *p,
 129                 struct pid_namespace *pid_ns),
 130         TP_ARGS(session, p, pid_ns),
 131         TP_FIELDS(
 132                 ctf_integer(pid_t, tid, p->pid)
 133                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
 134                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
 135                 ctf_integer(pid_t, vppid,
 136                         ({
 137                                 struct task_struct *parent;
 138                                 pid_t ret = 0;
 139
 140                                 if (pid_ns) {
 141                                         rcu_read_lock();
 142                                         parent = rcu_dereference(p->real_parent);
 143                                         ret = task_tgid_nr_ns(parent, pid_ns);
 144                                         rcu_read_unlock();
 145                                 }
 146                                 ret;
 147                         }))
 148                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
 149 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 150                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->lttng_ns_inum : 0)
 151 #endif
 152         )
 153 )
 154
 155 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_user_ns,
 156         TP_PROTO(struct lttng_kernel_session *session,
 157                 struct task_struct *p,
 158                 struct user_namespace *user_ns),
 159         TP_ARGS(session, p, user_ns),
 160         TP_FIELDS(
 161                 ctf_integer(pid_t, tid, p->pid)
 162                 ctf_integer(uid_t, vuid, user_ns ? lttng_task_vuid(p, user_ns) : 0)
 163                 ctf_integer(gid_t, vgid, user_ns ? lttng_task_vgid(p, user_ns) : 0)
 164 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0))
 165                 ctf_integer(int, ns_level, user_ns ? user_ns->level : 0)
 166 #endif
 167 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 168                 ctf_integer(unsigned int, ns_inum, user_ns ? user_ns->lttng_ns_inum : 0)
 169 #endif
 170         )
 171 )
 172
 173 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_uts_ns,
 174         TP_PROTO(struct lttng_kernel_session *session,
 175                 struct task_struct *p,
 176                 struct uts_namespace *uts_ns),
 177         TP_ARGS(session, p, uts_ns),
 178         TP_FIELDS(
 179                 ctf_integer(pid_t, tid, p->pid)
 180 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 181                 ctf_integer(unsigned int, ns_inum, uts_ns ? uts_ns->lttng_ns_inum : 0)
 182 #endif
 183         )
 184 )
 185
 186 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
 187         LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0))
 188 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_time_ns,
 189         TP_PROTO(struct lttng_kernel_session *session,
 190                 struct task_struct *p,
 191                 struct time_namespace *time_ns),
 192         TP_ARGS(session, p, time_ns),
 193         TP_FIELDS(
 194                 ctf_integer(pid_t, tid, p->pid)
 195                 ctf_integer(unsigned int, ns_inum, time_ns ? time_ns->lttng_ns_inum : 0)
 196         )
 197 )
 198 #endif
 199
 200 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
 201         TP_PROTO(struct lttng_kernel_session *session,
 202                 struct files_struct *files,
 203                 int fd, const char *filename,
 204                 unsigned int flags, fmode_t fmode),
 205         TP_ARGS(session, files, fd, filename, flags, fmode),
 206         TP_FIELDS(
 207                 ctf_integer_hex(struct files_struct *, file_table_address, files)
 208                 ctf_integer(int, fd, fd)
 209                 ctf_integer_oct(unsigned int, flags, flags)
 210                 ctf_integer_hex(fmode_t, fmode, fmode)
 211                 ctf_string(filename, filename)
 212         )
 213 )
 214
 215 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
 216         TP_PROTO(struct lttng_kernel_session *session,
 217                 struct task_struct *p, struct vm_area_struct *map,
 218                 unsigned long inode),
 219         TP_ARGS(session, p, map, inode),
 220         TP_FIELDS(
 221                 ctf_integer(pid_t, pid, p->tgid)
 222                 ctf_integer_hex(unsigned long, start, map->vm_start)
 223                 ctf_integer_hex(unsigned long, end, map->vm_end)
 224                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 225                 ctf_integer(unsigned long, inode, inode)
 226                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 227         )
 228 )
 229
 230 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 231         TP_PROTO(struct lttng_kernel_session *session,
 232                 struct net_device *dev, struct in_ifaddr *ifa),
 233         TP_ARGS(session, dev, ifa),
 234         TP_FIELDS(
 235                 ctf_string(name, dev->name)
 236                 ctf_integer_network_hex(uint32_t, address_ipv4,
 237                         ifa ? ifa->ifa_address : 0U)
 238         )
 239 )
 240
 241 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 242         TP_PROTO(struct lttng_kernel_session *session,
 243                 dev_t dev, const char *diskname),
 244         TP_ARGS(session, dev, diskname),
 245         TP_FIELDS(
 246                 ctf_integer(dev_t, dev, dev)
 247                 ctf_string(diskname, diskname)
 248         )
 249 )
 250
 251 /* Called with desc->lock held */
 252 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 253         TP_PROTO(struct lttng_kernel_session *session,
 254                 unsigned int irq, const char *chip_name,
 255                 struct irqaction *action),
 256         TP_ARGS(session, irq, chip_name, action),
 257         TP_FIELDS(
 258                 ctf_integer(unsigned int, irq, irq)
 259                 ctf_string(name, chip_name)
 260                 ctf_string(action, action->name ? : "")
 261                 ctf_integer(pid_t, tid, action->thread ? action->thread->pid : 0)
 262         )
 263 )
 264
 265 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64)
 266
 267 #define LTTNG_HAVE_STATEDUMP_CPU_TOPOLOGY
 268
 269 LTTNG_TRACEPOINT_EVENT(lttng_statedump_cpu_topology,
 270         TP_PROTO(struct lttng_kernel_session *session, struct cpuinfo_x86 *c),
 271         TP_ARGS(session, c),
 272         TP_FIELDS(
 273                 ctf_string(architecture, "x86")
 274                 ctf_integer(uint16_t, cpu_id, c->cpu_index)
 275                 ctf_string(vendor, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown")
 276                 ctf_integer(uint8_t, family, c->x86)
 277                 ctf_integer(uint8_t, model, c->x86_model)
 278                 ctf_string(model_name, c->x86_model_id[0] ? c->x86_model_id : "unknown")
 279                 ctf_integer(uint16_t, physical_id, c->phys_proc_id)
 280                 ctf_integer(uint16_t, core_id, c->cpu_core_id)
 281                 ctf_integer(uint16_t, cores, c->booted_cores)
 282         )
 283 )
 284 #endif /* CONFIG_X86_32 || CONFIG_X86_64 */
 285
 286 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 287
 288 /* This part must be outside protection */
 289 #include <lttng/define_trace.h>