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 <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/user_namespace.h>
  19
  20 #ifndef LTTNG_MNT_NS_MISSING_HEADER
  21 # ifndef ONCE_LTTNG_FS_MOUNT_H
  22 #  define ONCE_LTTNG_FS_MOUNT_H
  23 #  include <../fs/mount.h>
  24 # endif
  25 #endif
  26
  27 LTTNG_TRACEPOINT_EVENT(lttng_statedump_start,
  28         TP_PROTO(struct lttng_session *session),
  29         TP_ARGS(session),
  30         TP_FIELDS()
  31 )
  32
  33 LTTNG_TRACEPOINT_EVENT(lttng_statedump_end,
  34         TP_PROTO(struct lttng_session *session),
  35         TP_ARGS(session),
  36         TP_FIELDS()
  37 )
  38
  39 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_state,
  40         TP_PROTO(struct lttng_session *session,
  41                 struct task_struct *p,
  42                 int type, int mode, int submode, int status,
  43                 struct files_struct *files),
  44         TP_ARGS(session, p, type, mode, submode, status, files),
  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                 ctf_integer_hex(struct files_struct *, file_table_address, files)
  64         )
  65 )
  66
  67 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0))
  68 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_cgroup_ns,
  69         TP_PROTO(struct lttng_session *session,
  70                 struct task_struct *p,
  71                 struct cgroup_namespace *cgroup_ns),
  72         TP_ARGS(session, p, cgroup_ns),
  73         TP_FIELDS(
  74                 ctf_integer(pid_t, tid, p->pid)
  75                 ctf_integer(unsigned int, ns_inum, cgroup_ns ? cgroup_ns->ns.inum : 0)
  76         )
  77 )
  78 #endif
  79
  80 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_ipc_ns,
  81         TP_PROTO(struct lttng_session *session,
  82                 struct task_struct *p,
  83                 struct ipc_namespace *ipc_ns),
  84         TP_ARGS(session, p, ipc_ns),
  85         TP_FIELDS(
  86                 ctf_integer(pid_t, tid, p->pid)
  87 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
  88                 ctf_integer(unsigned int, ns_inum, ipc_ns ? ipc_ns->ns.inum : 0)
  89 #endif
  90         )
  91 )
  92
  93 #if !defined(LTTNG_MNT_NS_MISSING_HEADER)
  94 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_mnt_ns,
  95         TP_PROTO(struct lttng_session *session,
  96                 struct task_struct *p,
  97                 struct mnt_namespace *mnt_ns),
  98         TP_ARGS(session, p, mnt_ns),
  99         TP_FIELDS(
 100                 ctf_integer(pid_t, tid, p->pid)
 101 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 102                 ctf_integer(unsigned int, ns_inum, mnt_ns ? mnt_ns->ns.inum : 0)
 103 #endif
 104         )
 105 )
 106 #endif
 107
 108 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_net_ns,
 109         TP_PROTO(struct lttng_session *session,
 110                 struct task_struct *p,
 111                 struct net *net_ns),
 112         TP_ARGS(session, p, net_ns),
 113         TP_FIELDS(
 114                 ctf_integer(pid_t, tid, p->pid)
 115 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 116                 ctf_integer(unsigned int, ns_inum, net_ns ? net_ns->ns.inum : 0)
 117 #endif
 118         )
 119 )
 120
 121 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_pid_ns,
 122         TP_PROTO(struct lttng_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 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 145                 ctf_integer(unsigned int, ns_inum, pid_ns ? pid_ns->ns.inum : 0)
 146 #endif
 147         )
 148 )
 149
 150 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_user_ns,
 151         TP_PROTO(struct lttng_session *session,
 152                 struct task_struct *p,
 153                 struct user_namespace *user_ns),
 154         TP_ARGS(session, p, user_ns),
 155         TP_FIELDS(
 156                 ctf_integer(pid_t, tid, p->pid)
 157                 ctf_integer(uid_t, vuid, user_ns ? lttng_task_vuid(p, user_ns) : 0)
 158                 ctf_integer(gid_t, vgid, user_ns ? lttng_task_vgid(p, user_ns) : 0)
 159 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
 160                 ctf_integer(int, ns_level, user_ns ? user_ns->level : 0)
 161 #endif
 162 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 163                 ctf_integer(unsigned int, ns_inum, user_ns ? user_ns->ns.inum : 0)
 164 #endif
 165         )
 166 )
 167
 168 LTTNG_TRACEPOINT_EVENT(lttng_statedump_process_uts_ns,
 169         TP_PROTO(struct lttng_session *session,
 170                 struct task_struct *p,
 171                 struct uts_namespace *uts_ns),
 172         TP_ARGS(session, p, uts_ns),
 173         TP_FIELDS(
 174                 ctf_integer(pid_t, tid, p->pid)
 175 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 176                 ctf_integer(unsigned int, ns_inum, uts_ns ? uts_ns->ns.inum : 0)
 177 #endif
 178         )
 179 )
 180
 181 LTTNG_TRACEPOINT_EVENT(lttng_statedump_file_descriptor,
 182         TP_PROTO(struct lttng_session *session,
 183                 struct files_struct *files,
 184                 int fd, const char *filename,
 185                 unsigned int flags, fmode_t fmode),
 186         TP_ARGS(session, files, fd, filename, flags, fmode),
 187         TP_FIELDS(
 188                 ctf_integer_hex(struct files_struct *, file_table_address, files)
 189                 ctf_integer(int, fd, fd)
 190                 ctf_integer_oct(unsigned int, flags, flags)
 191                 ctf_integer_hex(fmode_t, fmode, fmode)
 192                 ctf_string(filename, filename)
 193         )
 194 )
 195
 196 LTTNG_TRACEPOINT_EVENT(lttng_statedump_vm_map,
 197         TP_PROTO(struct lttng_session *session,
 198                 struct task_struct *p, struct vm_area_struct *map,
 199                 unsigned long inode),
 200         TP_ARGS(session, p, map, inode),
 201         TP_FIELDS(
 202                 ctf_integer(pid_t, pid, p->tgid)
 203                 ctf_integer_hex(unsigned long, start, map->vm_start)
 204                 ctf_integer_hex(unsigned long, end, map->vm_end)
 205                 ctf_integer_hex(unsigned long, flags, map->vm_flags)
 206                 ctf_integer(unsigned long, inode, inode)
 207                 ctf_integer(unsigned long, pgoff, map->vm_pgoff << PAGE_SHIFT)
 208         )
 209 )
 210
 211 LTTNG_TRACEPOINT_EVENT(lttng_statedump_network_interface,
 212         TP_PROTO(struct lttng_session *session,
 213                 struct net_device *dev, struct in_ifaddr *ifa),
 214         TP_ARGS(session, dev, ifa),
 215         TP_FIELDS(
 216                 ctf_string(name, dev->name)
 217                 ctf_integer_network_hex(uint32_t, address_ipv4,
 218                         ifa ? ifa->ifa_address : 0U)
 219         )
 220 )
 221
 222 LTTNG_TRACEPOINT_EVENT(lttng_statedump_block_device,
 223         TP_PROTO(struct lttng_session *session,
 224                 dev_t dev, const char *diskname),
 225         TP_ARGS(session, dev, diskname),
 226         TP_FIELDS(
 227                 ctf_integer(dev_t, dev, dev)
 228                 ctf_string(diskname, diskname)
 229         )
 230 )
 231
 232 /* Called with desc->lock held */
 233 LTTNG_TRACEPOINT_EVENT(lttng_statedump_interrupt,
 234         TP_PROTO(struct lttng_session *session,
 235                 unsigned int irq, const char *chip_name,
 236                 struct irqaction *action),
 237         TP_ARGS(session, irq, chip_name, action),
 238         TP_FIELDS(
 239                 ctf_integer(unsigned int, irq, irq)
 240                 ctf_string(name, chip_name)
 241                 ctf_string(action, action->name ? : "")
 242                 ctf_integer(pid_t, tid, action->thread ? action->thread->pid : 0)
 243         )
 244 )
 245
 246 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64)
 247
 248 #define LTTNG_HAVE_STATEDUMP_CPU_TOPOLOGY
 249
 250 LTTNG_TRACEPOINT_EVENT(lttng_statedump_cpu_topology,
 251         TP_PROTO(struct lttng_session *session, struct cpuinfo_x86 *c),
 252         TP_ARGS(session, c),
 253         TP_FIELDS(
 254                 ctf_string(architecture, "x86")
 255                 ctf_integer(uint16_t, cpu_id, c->cpu_index)
 256                 ctf_string(vendor, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown")
 257                 ctf_integer(uint8_t, family, c->x86)
 258                 ctf_integer(uint8_t, model, c->x86_model)
 259                 ctf_string(model_name, c->x86_model_id[0] ? c->x86_model_id : "unknown")
 260                 ctf_integer(uint16_t, physical_id, c->phys_proc_id)
 261                 ctf_integer(uint16_t, core_id, c->cpu_core_id)
 262                 ctf_integer(uint16_t, cores, c->booted_cores)
 263         )
 264 )
 265 #endif /* CONFIG_X86_32 || CONFIG_X86_64 */
 266
 267 #endif /*  LTTNG_TRACE_LTTNG_STATEDUMP_H */
 268
 269 /* This part must be outside protection */
 270 #include <probes/define_trace.h>