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