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