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