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TOMOYO Linux Cross Reference
Linux/tools/perf/util/machine.h

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

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