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 <linux/user_namespace.h>
  18
  19 #include <lttng/kernel-version.h>
  20
  21 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
  22         LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0))
  23 #include <linux/time_namespace.h>
  24 #endif
  25
  26 #ifndef LTTNG_MNT_NS_MISSING_HEADER
  27 # ifndef ONCE_LTTNG_FS_MOUNT_H
  28 #  define ONCE_LTTNG_FS_MOUNT_H
  29 #  include <../fs/mount.h>
  30 # endif
  31 #endif
  32
  33 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  34         TP_PROTO(struct lttng_kernel_session *session),
  35         TP_ARGS(session),
  36         TP_FIELDS()
  37 )
  38
  39 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  40         TP_PROTO(struct lttng_kernel_session *session),
  41         TP_ARGS(session),
  42         TP_FIELDS()
  43 )
  44
  45 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  46         TP_PROTO(struct lttng_kernel_session *session,
  47                 struct task_struct *p,
  48                 int type, int mode, int submode, int status,
  49                 struct files_struct *files),
  50         TP_ARGS(session, p, type, mode, submode, status, files),
  51         TP_FIELDS(
  52                 ctf_integer(pid_t, tid, p->pid)
  53                 ctf_integer(pid_t, pid, p->tgid)
  54                 ctf_integer(pid_t, ppid,
  55                         ({
  56                                 pid_t ret;
  57
  58                                 rcu_read_lock();
  59                                 ret = task_tgid_nr(p->real_parent);
  60                                 rcu_read_unlock();
  61                                 ret;
  62                         }))
  63                 ctf_array_text(char, name, p->comm, TASK_COMM_LEN)
  64                 ctf_integer(int, type, type)
  65                 ctf_integer(int, mode, mode)
  66                 ctf_integer(int, submode, submode)
  67                 ctf_integer(int, status, status)
  68                 ctf_integer(unsigned int, cpu, task_cpu(p))
  69                 ctf_integer_hex(struct files_struct *, file_table_address, files)
  70         )
  71 )
  72
  73 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0))
  74 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_cgroup_ns,
  75         TP_PROTO(struct lttng_kernel_session *session,
  76                 struct task_struct *p,
  77                 struct cgroup_namespace *cgroup_ns),
  78         TP_ARGS(session, p, cgroup_ns),
  79         TP_FIELDS(
  80                 ctf_integer(pid_t, tid, p->pid)
  81                 ctf_integer(unsigned int, ns_inum, cgroup_ns ? cgroup_ns->ns.inum : 0)
  82         )
  83 )
  84 #endif
  85
  86 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_ipc_ns,
  87         TP_PROTO(struct lttng_kernel_session *session,
  88                 struct task_struct *p,
  89                 struct ipc_namespace *ipc_ns),
  90         TP_ARGS(session, p, ipc_ns),
  91         TP_FIELDS(
  92                 ctf_integer(pid_t, tid, p->pid)
  93                 ctf_integer(unsigned int, ns_inum, ipc_ns ? ipc_ns->ns.inum : 0)
  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                 ctf_integer(unsigned int, ns_inum, mnt_ns ? mnt_ns->ns.inum : 0)
 106         )
 107 )
 108 #endif
 109
 110 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_net_ns,
 111         TP_PROTO(struct lttng_kernel_session *session,
 112                 struct task_struct *p,
 113                 struct net *net_ns),
 114         TP_ARGS(session, p, net_ns),
 115         TP_FIELDS(
 116                 ctf_integer(pid_t, tid, p->pid)
 117                 ctf_integer(unsigned int, ns_inum, net_ns ? net_ns->ns.inum : 0)
 118         )
 119 )
 120
 121 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_pid_ns,
 122         TP_PROTO(struct lttng_kernel_session *session,
 123                 struct task_struct *p,
 124                 struct pid_namespace *pid_ns),
 125         TP_ARGS(session, p, pid_ns),
 126         TP_FIELDS(
 127                 ctf_integer(pid_t, tid, p->pid)
 128                 ctf_integer(pid_t, vtid, pid_ns ? task_pid_nr_ns(p, pid_ns) : 0)
 129                 ctf_integer(pid_t, vpid, pid_ns ? task_tgid_nr_ns(p, pid_ns) : 0)
 130                 ctf_integer(pid_t, vppid,
 131                         ({
 132                                 struct task_struct *parent;
 133                                 pid_t ret = 0;
 134
 135                                 if (pid_ns) {
 136                                         rcu_read_lock();
 137                                         parent = rcu_dereference(p->real_parent);
 138                                         ret = task_tgid_nr_ns(parent, pid_ns);
 139                                         rcu_read_unlock();
 140                                 }
 141                                 ret;
 142                         }))
 143                 ctf_integer(int, ns_level, pid_ns ? pid_ns->level : 0)
 144                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->ns.inum : 0)
 145         )
 146 )
 147
 148 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_user_ns,
 149         TP_PROTO(struct lttng_kernel_session *session,
 150                 struct task_struct *p,
 151                 struct user_namespace *user_ns),
 152         TP_ARGS(session, p, user_ns),
 153         TP_FIELDS(
 154                 ctf_integer(pid_t, tid, p->pid)
 155                 ctf_integer(uid_t, vuid, user_ns ? from_kuid_munged(user_ns, task_cred_xxx(p, uid)) : 0)
 156                 ctf_integer(gid_t, vgid, user_ns ? from_kgid_munged(user_ns, task_cred_xxx(p, gid)) : 0)
 157                 ctf_integer(int, ns_level, user_ns ? user_ns->level : 0)
 158                 ctf_integer(unsigned int, ns_inum, user_ns ? user_ns->ns.inum : 0)
 159         )
 160 )
 161
 162 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_uts_ns,
 163         TP_PROTO(struct lttng_kernel_session *session,
 164                 struct task_struct *p,
 165                 struct uts_namespace *uts_ns),
 166         TP_ARGS(session, p, uts_ns),
 167         TP_FIELDS(
 168                 ctf_integer(pid_t, tid, p->pid)
 169                 ctf_integer(unsigned int, ns_inum, uts_ns ? uts_ns->ns.inum : 0)
 170         )
 171 )
 172
 173 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
 174         LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0))
 175 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_time_ns,
 176         TP_PROTO(struct lttng_kernel_session *session,
 177                 struct task_struct *p,
 178                 struct time_namespace *time_ns),
 179         TP_ARGS(session, p, time_ns),
 180         TP_FIELDS(
 181                 ctf_integer(pid_t, tid, p->pid)
 182                 ctf_integer(unsigned int, ns_inum, time_ns ? time_ns->ns.inum : 0)
 183         )
 184 )
 185 #endif
 186
 187 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
 188         TP_PROTO(struct lttng_kernel_session *session,
 189                 struct files_struct *files,
 190                 int fd, const char *filename,
 191                 unsigned int flags, fmode_t fmode),
 192         TP_ARGS(session, files, fd, filename, flags, fmode),
 193         TP_FIELDS(
 194                 ctf_integer_hex(struct files_struct *, file_table_address, files)
 195                 ctf_integer(int, fd, fd)
 196                 ctf_integer_oct(unsigned int, flags, flags)
 197                 ctf_integer_hex(fmode_t, fmode, fmode)
 198                 ctf_string(filename, filename)
 199         )
 200 )
 201
 202 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
 203         TP_PROTO(struct lttng_kernel_session *session,
 204                 struct task_struct *p, struct vm_area_struct *map,
 205                 unsigned long inode),
 206         TP_ARGS(session, p, map, inode),
 207         TP_FIELDS(
 208                 ctf_integer(pid_t, pid, p->tgid)
 209                 ctf_integer_hex(unsigned long, start, map->vm_start)
 210                 ctf_integer_hex(unsigned long, end, map->vm_end)
 211                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 212                 ctf_integer(unsigned long, inode, inode)
 213                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 214         )
 215 )
 216
 217 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 218         TP_PROTO(struct lttng_kernel_session *session,
 219                 struct net_device *dev, struct in_ifaddr *ifa),
 220         TP_ARGS(session, dev, ifa),
 221         TP_FIELDS(
 222                 ctf_string(name, dev->name)
 223                 ctf_integer_network_hex(uint32_t, address_ipv4,
 224                         ifa ? ifa->ifa_address : 0U)
 225         )
 226 )
 227
 228 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 229         TP_PROTO(struct lttng_kernel_session *session,
 230                 dev_t dev, const char *diskname),
 231         TP_ARGS(session, dev, diskname),
 232         TP_FIELDS(
 233                 ctf_integer(dev_t, dev, dev)
 234                 ctf_string(diskname, diskname)
 235         )
 236 )
 237
 238 /* Called with desc->lock held */
 239 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 240         TP_PROTO(struct lttng_kernel_session *session,
 241                 unsigned int irq, const char *chip_name,
 242                 struct irqaction *action),
 243         TP_ARGS(session, irq, chip_name, action),
 244         TP_FIELDS(
 245                 ctf_integer(unsigned int, irq, irq)
 246                 ctf_string(name, chip_name)
 247                 ctf_string(action, action->name ? : "")
 248                 ctf_integer(pid_t, tid, action->thread ? action->thread->pid : 0)
 249         )
 250 )
 251
 252 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64)
 253
 254 #define LTTNG_HAVE_STATEDUMP_CPU_TOPOLOGY
 255
 256 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,7,0))
 257 LTTNG_TRACEPOINT_EVENT(lttng_statedump_cpu_topology,
 258         TP_PROTO(struct lttng_kernel_session *session, struct cpuinfo_x86 *c),
 259         TP_ARGS(session, c),
 260         TP_FIELDS(
 261                 ctf_string(architecture, "x86")
 262                 ctf_integer(uint16_t, cpu_id, c->cpu_index)
 263                 ctf_string(vendor, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown")
 264                 ctf_integer(uint8_t, family, c->x86)
 265                 ctf_integer(uint8_t, model, c->x86_model)
 266                 ctf_string(model_name, c->x86_model_id[0] ? c->x86_model_id : "unknown")
 267                 ctf_integer(uint16_t, physical_id, c->topo.pkg_id)
 268                 ctf_integer(uint16_t, core_id, c->topo.core_id)
 269                 ctf_integer(uint16_t, cores, c->booted_cores)
 270         )
 271 )
 272 #else
 273 LTTNG_TRACEPOINT_EVENT(lttng_statedump_cpu_topology,
 274         TP_PROTO(struct lttng_kernel_session *session, struct cpuinfo_x86 *c),
 275         TP_ARGS(session, c),
 276         TP_FIELDS(
 277                 ctf_string(architecture, "x86")
 278                 ctf_integer(uint16_t, cpu_id, c->cpu_index)
 279                 ctf_string(vendor, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown")
 280                 ctf_integer(uint8_t, family, c->x86)
 281                 ctf_integer(uint8_t, model, c->x86_model)
 282                 ctf_string(model_name, c->x86_model_id[0] ? c->x86_model_id : "unknown")
 283                 ctf_integer(uint16_t, physical_id, c->phys_proc_id)
 284                 ctf_integer(uint16_t, core_id, c->cpu_core_id)
 285                 ctf_integer(uint16_t, cores, c->booted_cores)
 286         )
 287 )
 288 #endif /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,7,0) */
 289
 290 #endif /* CONFIG_X86_32 || CONFIG_X86_64 */
 291
 292 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 293
 294 /* This part must be outside protection */
 295 #include <lttng/define_trace.h>