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 "event.h"
   8
   9 struct addr_location;
  10 struct branch_stack;
  11 struct perf_evsel;
  12 struct perf_sample;
  13 struct symbol;
  14 struct thread;
  15 union perf_event;
  16
  17 /* Native host kernel uses -1 as pid index in machine */
  18 #define HOST_KERNEL_ID                  (-1)
  19 #define DEFAULT_GUEST_KERNEL_ID         (0)
  20
  21 extern const char *ref_reloc_sym_names[];
  22
  23 struct vdso_info;
  24
  25 struct machine {
  26         struct rb_node    rb_node;
  27         pid_t             pid;
  28         u16               id_hdr_size;
  29         bool              comm_exec;
  30         char              *root_dir;
  31         struct rb_root    threads;
  32         struct list_head  dead_threads;
  33         struct thread     *last_match;
  34         struct vdso_info  *vdso_info;
  35         struct list_head  user_dsos;
  36         struct list_head  kernel_dsos;
  37         struct map_groups kmaps;
  38         struct map        *vmlinux_maps[MAP__NR_TYPES];
  39         u64               kernel_start;
  40         symbol_filter_t   symbol_filter;
  41         pid_t             *current_tid;
  42 };
  43
  44 static inline
  45 struct map *machine__kernel_map(struct machine *machine, enum map_type type)
  46 {
  47         return machine->vmlinux_maps[type];
  48 }
  49
  50 int machine__get_kernel_start(struct machine *machine);
  51
  52 static inline u64 machine__kernel_start(struct machine *machine)
  53 {
  54         if (!machine->kernel_start)
  55                 machine__get_kernel_start(machine);
  56         return machine->kernel_start;
  57 }
  58
  59 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
  60 {
  61         u64 kernel_start = machine__kernel_start(machine);
  62
  63         return ip >= kernel_start;
  64 }
  65
  66 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
  67                                     pid_t tid);
  68 struct comm *machine__thread_exec_comm(struct machine *machine,
  69                                        struct thread *thread);
  70
  71 int machine__process_comm_event(struct machine *machine, union perf_event *event,
  72                                 struct perf_sample *sample);
  73 int machine__process_exit_event(struct machine *machine, union perf_event *event,
  74                                 struct perf_sample *sample);
  75 int machine__process_fork_event(struct machine *machine, union perf_event *event,
  76                                 struct perf_sample *sample);
  77 int machine__process_lost_event(struct machine *machine, union perf_event *event,
  78                                 struct perf_sample *sample);
  79 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
  80                                 struct perf_sample *sample);
  81 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
  82                                  struct perf_sample *sample);
  83 int machine__process_event(struct machine *machine, union perf_event *event,
  84                                 struct perf_sample *sample);
  85
  86 typedef void (*machine__process_t)(struct machine *machine, void *data);
  87
  88 struct machines {
  89         struct machine host;
  90         struct rb_root guests;
  91         symbol_filter_t symbol_filter;
  92 };
  93
  94 void machines__init(struct machines *machines);
  95 void machines__exit(struct machines *machines);
  96
  97 void machines__process_guests(struct machines *machines,
  98                               machine__process_t process, void *data);
  99
 100 struct machine *machines__add(struct machines *machines, pid_t pid,
 101                               const char *root_dir);
 102 struct machine *machines__find_host(struct machines *machines);
 103 struct machine *machines__find(struct machines *machines, pid_t pid);
 104 struct machine *machines__findnew(struct machines *machines, pid_t pid);
 105
 106 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
 107 char *machine__mmap_name(struct machine *machine, char *bf, size_t size);
 108
 109 void machines__set_symbol_filter(struct machines *machines,
 110                                  symbol_filter_t symbol_filter);
 111 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
 112
 113 struct machine *machine__new_host(void);
 114 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
 115 void machine__exit(struct machine *machine);
 116 void machine__delete_dead_threads(struct machine *machine);
 117 void machine__delete_threads(struct machine *machine);
 118 void machine__delete(struct machine *machine);
 119
 120 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
 121                                            struct addr_location *al);
 122 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
 123                                      struct addr_location *al);
 124 int machine__resolve_callchain(struct machine *machine,
 125                                struct perf_evsel *evsel,
 126                                struct thread *thread,
 127                                struct perf_sample *sample,
 128                                struct symbol **parent,
 129                                struct addr_location *root_al,
 130                                int max_stack);
 131
 132 /*
 133  * Default guest kernel is defined by parameter --guestkallsyms
 134  * and --guestmodules
 135  */
 136 static inline bool machine__is_default_guest(struct machine *machine)
 137 {
 138         return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
 139 }
 140
 141 static inline bool machine__is_host(struct machine *machine)
 142 {
 143         return machine ? machine->pid == HOST_KERNEL_ID : false;
 144 }
 145
 146 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid,
 147                                        pid_t tid);
 148
 149 size_t machine__fprintf(struct machine *machine, FILE *fp);
 150
 151 static inline
 152 struct symbol *machine__find_kernel_symbol(struct machine *machine,
 153                                            enum map_type type, u64 addr,
 154                                            struct map **mapp,
 155                                            symbol_filter_t filter)
 156 {
 157         return map_groups__find_symbol(&machine->kmaps, type, addr,
 158                                        mapp, filter);
 159 }
 160
 161 static inline
 162 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
 163                                              struct map **mapp,
 164                                              symbol_filter_t filter)
 165 {
 166         return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
 167                                            mapp, filter);
 168 }
 169
 170 static inline
 171 struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
 172                                                      const char *name,
 173                                                      struct map **mapp,
 174                                                      symbol_filter_t filter)
 175 {
 176         return map_groups__find_function_by_name(&machine->kmaps, name, mapp,
 177                                                  filter);
 178 }
 179
 180 struct map *machine__new_module(struct machine *machine, u64 start,
 181                                 const char *filename);
 182
 183 int machine__load_kallsyms(struct machine *machine, const char *filename,
 184                            enum map_type type, symbol_filter_t filter);
 185 int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
 186                                symbol_filter_t filter);
 187
 188 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
 189                                      bool (skip)(struct dso *dso, int parm), int parm);
 190 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
 191 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
 192                                      bool (skip)(struct dso *dso, int parm), int parm);
 193
 194 void machine__destroy_kernel_maps(struct machine *machine);
 195 int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
 196 int machine__create_kernel_maps(struct machine *machine);
 197
 198 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
 199 int machines__create_guest_kernel_maps(struct machines *machines);
 200 void machines__destroy_kernel_maps(struct machines *machines);
 201
 202 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
 203
 204 int machine__for_each_thread(struct machine *machine,
 205                              int (*fn)(struct thread *thread, void *p),
 206                              void *priv);
 207
 208 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
 209                                   struct target *target, struct thread_map *threads,
 210                                   perf_event__handler_t process, bool data_mmap);
 211 static inline
 212 int machine__synthesize_threads(struct machine *machine, struct target *target,
 213                                 struct thread_map *threads, bool data_mmap)
 214 {
 215         return __machine__synthesize_threads(machine, NULL, target, threads,
 216                                              perf_event__process, data_mmap);
 217 }
 218
 219 pid_t machine__get_current_tid(struct machine *machine, int cpu);
 220 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
 221                              pid_t tid);
 222
 223 #endif /* __PERF_MACHINE_H */