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