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         char              *root_dir;
  32         struct rb_root    threads;
  33         pthread_rwlock_t  threads_lock;
  34         unsigned int      nr_threads;
  35         struct list_head  dead_threads;
  36         struct thread     *last_match;
  37         struct vdso_info  *vdso_info;
  38         struct perf_env   *env;
  39         struct dsos       dsos;
  40         struct map_groups kmaps;
  41         struct map        *vmlinux_maps[MAP__NR_TYPES];
  42         u64               kernel_start;
  43         symbol_filter_t   symbol_filter;
  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_mmap_event(struct machine *machine, union perf_event *event,
 101                                 struct perf_sample *sample);
 102 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
 103                                  struct perf_sample *sample);
 104 int machine__process_event(struct machine *machine, union perf_event *event,
 105                                 struct perf_sample *sample);
 106
 107 typedef void (*machine__process_t)(struct machine *machine, void *data);
 108
 109 struct machines {
 110         struct machine host;
 111         struct rb_root guests;
 112         symbol_filter_t symbol_filter;
 113 };
 114
 115 void machines__init(struct machines *machines);
 116 void machines__exit(struct machines *machines);
 117
 118 void machines__process_guests(struct machines *machines,
 119                               machine__process_t process, void *data);
 120
 121 struct machine *machines__add(struct machines *machines, pid_t pid,
 122                               const char *root_dir);
 123 struct machine *machines__find_host(struct machines *machines);
 124 struct machine *machines__find(struct machines *machines, pid_t pid);
 125 struct machine *machines__findnew(struct machines *machines, pid_t pid);
 126
 127 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
 128 char *machine__mmap_name(struct machine *machine, char *bf, size_t size);
 129
 130 void machines__set_symbol_filter(struct machines *machines,
 131                                  symbol_filter_t symbol_filter);
 132 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
 133
 134 struct machine *machine__new_host(void);
 135 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
 136 void machine__exit(struct machine *machine);
 137 void machine__delete_threads(struct machine *machine);
 138 void machine__delete(struct machine *machine);
 139 void machine__remove_thread(struct machine *machine, struct thread *th);
 140
 141 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
 142                                            struct addr_location *al);
 143 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
 144                                      struct addr_location *al);
 145
 146 struct callchain_cursor;
 147
 148 int thread__resolve_callchain(struct thread *thread,
 149                               struct callchain_cursor *cursor,
 150                               struct perf_evsel *evsel,
 151                               struct perf_sample *sample,
 152                               struct symbol **parent,
 153                               struct addr_location *root_al,
 154                               int max_stack);
 155
 156 /*
 157  * Default guest kernel is defined by parameter --guestkallsyms
 158  * and --guestmodules
 159  */
 160 static inline bool machine__is_default_guest(struct machine *machine)
 161 {
 162         return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
 163 }
 164
 165 static inline bool machine__is_host(struct machine *machine)
 166 {
 167         return machine ? machine->pid == HOST_KERNEL_ID : false;
 168 }
 169
 170 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
 171 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
 172
 173 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
 174
 175 size_t machine__fprintf(struct machine *machine, FILE *fp);
 176
 177 static inline
 178 struct symbol *machine__find_kernel_symbol(struct machine *machine,
 179                                            enum map_type type, u64 addr,
 180                                            struct map **mapp,
 181                                            symbol_filter_t filter)
 182 {
 183         return map_groups__find_symbol(&machine->kmaps, type, addr,
 184                                        mapp, filter);
 185 }
 186
 187 static inline
 188 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
 189                                                    enum map_type type, const char *name,
 190                                                    struct map **mapp,
 191                                                    symbol_filter_t filter)
 192 {
 193         return map_groups__find_symbol_by_name(&machine->kmaps, type, name,
 194                                                mapp, filter);
 195 }
 196
 197 static inline
 198 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
 199                                              struct map **mapp,
 200                                              symbol_filter_t filter)
 201 {
 202         return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
 203                                            mapp, filter);
 204 }
 205
 206 static inline
 207 struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
 208                                                      const char *name,
 209                                                      struct map **mapp,
 210                                                      symbol_filter_t filter)
 211 {
 212         return map_groups__find_function_by_name(&machine->kmaps, name, mapp,
 213                                                  filter);
 214 }
 215
 216 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
 217                                         const char *filename);
 218
 219 int __machine__load_kallsyms(struct machine *machine, const char *filename,
 220                              enum map_type type, bool no_kcore, symbol_filter_t filter);
 221 int machine__load_kallsyms(struct machine *machine, const char *filename,
 222                            enum map_type type, symbol_filter_t filter);
 223 int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
 224                                symbol_filter_t filter);
 225
 226 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
 227                                      bool (skip)(struct dso *dso, int parm), int parm);
 228 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
 229 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
 230                                      bool (skip)(struct dso *dso, int parm), int parm);
 231
 232 void machine__destroy_kernel_maps(struct machine *machine);
 233 int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
 234 int machine__create_kernel_maps(struct machine *machine);
 235
 236 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
 237 int machines__create_guest_kernel_maps(struct machines *machines);
 238 void machines__destroy_kernel_maps(struct machines *machines);
 239
 240 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
 241
 242 int machine__for_each_thread(struct machine *machine,
 243                              int (*fn)(struct thread *thread, void *p),
 244                              void *priv);
 245 int machines__for_each_thread(struct machines *machines,
 246                               int (*fn)(struct thread *thread, void *p),
 247                               void *priv);
 248
 249 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
 250                                   struct target *target, struct thread_map *threads,
 251                                   perf_event__handler_t process, bool data_mmap,
 252                                   unsigned int proc_map_timeout);
 253 static inline
 254 int machine__synthesize_threads(struct machine *machine, struct target *target,
 255                                 struct thread_map *threads, bool data_mmap,
 256                                 unsigned int proc_map_timeout)
 257 {
 258         return __machine__synthesize_threads(machine, NULL, target, threads,
 259                                              perf_event__process, data_mmap,
 260                                              proc_map_timeout);
 261 }
 262
 263 pid_t machine__get_current_tid(struct machine *machine, int cpu);
 264 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
 265                              pid_t tid);
 266 /*
 267  * For use with libtraceevent's pevent_set_function_resolver()
 268  */
 269 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
 270
 271 #endif /* __PERF_MACHINE_H */