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