tools/perf/util/machine.h

   1 #ifndef __PERF_MACHINE_H
   2 #define __PERF_MACHINE_H
   3
   4 #include <sys/types.h>
   5 #include <linux/rbtree.h>
   6 #include "map.h"
   7 #include "dso.h"
   8 #include "event.h"
   9
  10 struct addr_location;
  11 struct branch_stack;
  12 struct perf_evsel;
  13 struct perf_sample;
  14 struct symbol;
  15 struct thread;
  16 union perf_event;
  17
  18 /* Native host kernel uses -1 as pid index in machine */
  19 #define HOST_KERNEL_ID                  (-1)
  20 #define DEFAULT_GUEST_KERNEL_ID         (0)
  21
  22 extern const char *ref_reloc_sym_names[];
  23
  24 struct vdso_info;
  25
  26 struct machine {
  27         struct rb_node    rb_node;
  28         pid_t             pid;
  29         u16               id_hdr_size;
  30         bool              comm_exec;
  31         bool              kptr_restrict_warned;
  32         char              *root_dir;
  33         struct rb_root    threads;
  34         pthread_rwlock_t  threads_lock;
  35         unsigned int      nr_threads;
  36         struct list_head  dead_threads;
  37         struct thread     *last_match;
  38         struct vdso_info  *vdso_info;
  39         struct perf_env   *env;
  40         struct dsos       dsos;
  41         struct map_groups kmaps;
  42         struct map        *vmlinux_maps[MAP__NR_TYPES];
  43         u64               kernel_start;
  44         pid_t             *current_tid;
  45         union { /* Tool specific area */
  46                 void      *priv;
  47                 u64       db_id;
  48         };
  49 };
  50
  51 static inline
  52 struct map *__machine__kernel_map(struct machine *machine, enum map_type type)
  53 {
  54         return machine->vmlinux_maps[type];
  55 }
  56
  57 static inline
  58 struct map *machine__kernel_map(struct machine *machine)
  59 {
  60         return __machine__kernel_map(machine, MAP__FUNCTION);
  61 }
  62
  63 int machine__get_kernel_start(struct machine *machine);
  64
  65 static inline u64 machine__kernel_start(struct machine *machine)
  66 {
  67         if (!machine->kernel_start)
  68                 machine__get_kernel_start(machine);
  69         return machine->kernel_start;
  70 }
  71
  72 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
  73 {
  74         u64 kernel_start = machine__kernel_start(machine);
  75
  76         return ip >= kernel_start;
  77 }
  78
  79 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
  80                                     pid_t tid);
  81 struct comm *machine__thread_exec_comm(struct machine *machine,
  82                                        struct thread *thread);
  83
  84 int machine__process_comm_event(struct machine *machine, union perf_event *event,
  85                                 struct perf_sample *sample);
  86 int machine__process_exit_event(struct machine *machine, union perf_event *event,
  87                                 struct perf_sample *sample);
  88 int machine__process_fork_event(struct machine *machine, union perf_event *event,
  89                                 struct perf_sample *sample);
  90 int machine__process_lost_event(struct machine *machine, union perf_event *event,
  91                                 struct perf_sample *sample);
  92 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
  93                                         struct perf_sample *sample);
  94 int machine__process_aux_event(struct machine *machine,
  95                                union perf_event *event);
  96 int machine__process_itrace_start_event(struct machine *machine,
  97                                         union perf_event *event);
  98 int machine__process_switch_event(struct machine *machine,
  99                                   union perf_event *event);
 100 int machine__process_namespaces_event(struct machine *machine,
 101                                       union perf_event *event,
 102                                       struct perf_sample *sample);
 103 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
 104                                 struct perf_sample *sample);
 105 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
 106                                  struct perf_sample *sample);
 107 int machine__process_event(struct machine *machine, union perf_event *event,
 108                                 struct perf_sample *sample);
 109
 110 typedef void (*machine__process_t)(struct machine *machine, void *data);
 111
 112 struct machines {
 113         struct machine host;
 114         struct rb_root guests;
 115 };
 116
 117 void machines__init(struct machines *machines);
 118 void machines__exit(struct machines *machines);
 119
 120 void machines__process_guests(struct machines *machines,
 121                               machine__process_t process, void *data);
 122
 123 struct machine *machines__add(struct machines *machines, pid_t pid,
 124                               const char *root_dir);
 125 struct machine *machines__find_host(struct machines *machines);
 126 struct machine *machines__find(struct machines *machines, pid_t pid);
 127 struct machine *machines__findnew(struct machines *machines, pid_t pid);
 128
 129 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
 130 char *machine__mmap_name(struct machine *machine, char *bf, size_t size);
 131
 132 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
 133
 134 struct machine *machine__new_host(void);
 135 struct machine *machine__new_kallsyms(void);
 136 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
 137 void machine__exit(struct machine *machine);
 138 void machine__delete_threads(struct machine *machine);
 139 void machine__delete(struct machine *machine);
 140 void machine__remove_thread(struct machine *machine, struct thread *th);
 141
 142 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
 143                                            struct addr_location *al);
 144 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
 145                                      struct addr_location *al);
 146
 147 struct callchain_cursor;
 148
 149 int thread__resolve_callchain(struct thread *thread,
 150                               struct callchain_cursor *cursor,
 151                               struct perf_evsel *evsel,
 152                               struct perf_sample *sample,
 153                               struct symbol **parent,
 154                               struct addr_location *root_al,
 155                               int max_stack);
 156
 157 /*
 158  * Default guest kernel is defined by parameter --guestkallsyms
 159  * and --guestmodules
 160  */
 161 static inline bool machine__is_default_guest(struct machine *machine)
 162 {
 163         return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
 164 }
 165
 166 static inline bool machine__is_host(struct machine *machine)
 167 {
 168         return machine ? machine->pid == HOST_KERNEL_ID : false;
 169 }
 170
 171 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
 172 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
 173
 174 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
 175
 176 size_t machine__fprintf(struct machine *machine, FILE *fp);
 177
 178 static inline
 179 struct symbol *machine__find_kernel_symbol(struct machine *machine,
 180                                            enum map_type type, u64 addr,
 181                                            struct map **mapp)
 182 {
 183         return map_groups__find_symbol(&machine->kmaps, type, addr, mapp);
 184 }
 185
 186 static inline
 187 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
 188                                                    enum map_type type, const char *name,
 189                                                    struct map **mapp)
 190 {
 191         return map_groups__find_symbol_by_name(&machine->kmaps, type, name, mapp);
 192 }
 193
 194 static inline
 195 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
 196                                              struct map **mapp)
 197 {
 198         return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
 199                                            mapp);
 200 }
 201
 202 static inline
 203 struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
 204                                                      const char *name,
 205                                                      struct map **mapp)
 206 {
 207         return map_groups__find_function_by_name(&machine->kmaps, name, mapp);
 208 }
 209
 210 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
 211                                         const char *filename);
 212 int arch__fix_module_text_start(u64 *start, const char *name);
 213
 214 int __machine__load_kallsyms(struct machine *machine, const char *filename,
 215                              enum map_type type, bool no_kcore);
 216 int machine__load_kallsyms(struct machine *machine, const char *filename,
 217                            enum map_type type);
 218 int machine__load_vmlinux_path(struct machine *machine, enum map_type type);
 219
 220 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
 221                                      bool (skip)(struct dso *dso, int parm), int parm);
 222 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
 223 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
 224                                      bool (skip)(struct dso *dso, int parm), int parm);
 225
 226 void machine__destroy_kernel_maps(struct machine *machine);
 227 int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
 228 int machine__create_kernel_maps(struct machine *machine);
 229
 230 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
 231 int machines__create_guest_kernel_maps(struct machines *machines);
 232 void machines__destroy_kernel_maps(struct machines *machines);
 233
 234 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
 235
 236 int machine__for_each_thread(struct machine *machine,
 237                              int (*fn)(struct thread *thread, void *p),
 238                              void *priv);
 239 int machines__for_each_thread(struct machines *machines,
 240                               int (*fn)(struct thread *thread, void *p),
 241                               void *priv);
 242
 243 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
 244                                   struct target *target, struct thread_map *threads,
 245                                   perf_event__handler_t process, bool data_mmap,
 246                                   unsigned int proc_map_timeout);
 247 static inline
 248 int machine__synthesize_threads(struct machine *machine, struct target *target,
 249                                 struct thread_map *threads, bool data_mmap,
 250                                 unsigned int proc_map_timeout)
 251 {
 252         return __machine__synthesize_threads(machine, NULL, target, threads,
 253                                              perf_event__process, data_mmap,
 254                                              proc_map_timeout);
 255 }
 256
 257 pid_t machine__get_current_tid(struct machine *machine, int cpu);
 258 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
 259                              pid_t tid);
 260 /*
 261  * For use with libtraceevent's pevent_set_function_resolver()
 262  */
 263 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
 264
 265 #endif /* __PERF_MACHINE_H */