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