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 #include "rwsem.h" 10 11 struct addr_location; 12 struct branch_stack; 13 struct perf_evsel; 14 struct perf_sample; 15 struct symbol; 16 struct thread; 17 union perf_event; 18 19 /* Native host kernel uses -1 as pid index in machine */ 20 #define HOST_KERNEL_ID (-1) 21 #define DEFAULT_GUEST_KERNEL_ID (0) 22 23 extern const char *ref_reloc_sym_names[]; 24 25 struct vdso_info; 26 27 #define THREADS__TABLE_BITS 8 28 #define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS) 29 30 struct threads { 31 struct rb_root entries; 32 struct rw_semaphore lock; 33 unsigned int nr; 34 struct list_head dead; 35 struct thread *last_match; 36 }; 37 38 struct machine { 39 struct rb_node rb_node; 40 pid_t pid; 41 u16 id_hdr_size; 42 bool comm_exec; 43 bool kptr_restrict_warned; 44 char *root_dir; 45 struct threads threads[THREADS__TABLE_SIZE]; 46 struct vdso_info *vdso_info; 47 struct perf_env *env; 48 struct dsos dsos; 49 struct map_groups kmaps; 50 struct map *vmlinux_maps[MAP__NR_TYPES]; 51 u64 kernel_start; 52 pid_t *current_tid; 53 union { /* Tool specific area */ 54 void *priv; 55 u64 db_id; 56 }; 57 }; 58 59 static inline struct threads *machine__threads(struct machine *machine, pid_t tid) 60 { 61 /* Cast it to handle tid == -1 */ 62 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE]; 63 } 64 65 static inline 66 struct map *__machine__kernel_map(struct machine *machine, enum map_type type) 67 { 68 return machine->vmlinux_maps[type]; 69 } 70 71 static inline 72 struct map *machine__kernel_map(struct machine *machine) 73 { 74 return __machine__kernel_map(machine, MAP__FUNCTION); 75 } 76 77 int machine__get_kernel_start(struct machine *machine); 78 79 static inline u64 machine__kernel_start(struct machine *machine) 80 { 81 if (!machine->kernel_start) 82 machine__get_kernel_start(machine); 83 return machine->kernel_start; 84 } 85 86 static inline bool machine__kernel_ip(struct machine *machine, u64 ip) 87 { 88 u64 kernel_start = machine__kernel_start(machine); 89 90 return ip >= kernel_start; 91 } 92 93 struct thread *machine__find_thread(struct machine *machine, pid_t pid, 94 pid_t tid); 95 struct comm *machine__thread_exec_comm(struct machine *machine, 96 struct thread *thread); 97 98 int machine__process_comm_event(struct machine *machine, union perf_event *event, 99 struct perf_sample *sample); 100 int machine__process_exit_event(struct machine *machine, union perf_event *event, 101 struct perf_sample *sample); 102 int machine__process_fork_event(struct machine *machine, union perf_event *event, 103 struct perf_sample *sample); 104 int machine__process_lost_event(struct machine *machine, union perf_event *event, 105 struct perf_sample *sample); 106 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event, 107 struct perf_sample *sample); 108 int machine__process_aux_event(struct machine *machine, 109 union perf_event *event); 110 int machine__process_itrace_start_event(struct machine *machine, 111 union perf_event *event); 112 int machine__process_switch_event(struct machine *machine, 113 union perf_event *event); 114 int machine__process_namespaces_event(struct machine *machine, 115 union perf_event *event, 116 struct perf_sample *sample); 117 int machine__process_mmap_event(struct machine *machine, union perf_event *event, 118 struct perf_sample *sample); 119 int machine__process_mmap2_event(struct machine *machine, union perf_event *event, 120 struct perf_sample *sample); 121 int machine__process_event(struct machine *machine, union perf_event *event, 122 struct perf_sample *sample); 123 124 typedef void (*machine__process_t)(struct machine *machine, void *data); 125 126 struct machines { 127 struct machine host; 128 struct rb_root guests; 129 }; 130 131 void machines__init(struct machines *machines); 132 void machines__exit(struct machines *machines); 133 134 void machines__process_guests(struct machines *machines, 135 machine__process_t process, void *data); 136 137 struct machine *machines__add(struct machines *machines, pid_t pid, 138 const char *root_dir); 139 struct machine *machines__find_host(struct machines *machines); 140 struct machine *machines__find(struct machines *machines, pid_t pid); 141 struct machine *machines__findnew(struct machines *machines, pid_t pid); 142 143 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size); 144 char *machine__mmap_name(struct machine *machine, char *bf, size_t size); 145 146 void machines__set_comm_exec(struct machines *machines, bool comm_exec); 147 148 struct machine *machine__new_host(void); 149 struct machine *machine__new_kallsyms(void); 150 int machine__init(struct machine *machine, const char *root_dir, pid_t pid); 151 void machine__exit(struct machine *machine); 152 void machine__delete_threads(struct machine *machine); 153 void machine__delete(struct machine *machine); 154 void machine__remove_thread(struct machine *machine, struct thread *th); 155 156 struct branch_info *sample__resolve_bstack(struct perf_sample *sample, 157 struct addr_location *al); 158 struct mem_info *sample__resolve_mem(struct perf_sample *sample, 159 struct addr_location *al); 160 161 struct callchain_cursor; 162 163 int thread__resolve_callchain(struct thread *thread, 164 struct callchain_cursor *cursor, 165 struct perf_evsel *evsel, 166 struct perf_sample *sample, 167 struct symbol **parent, 168 struct addr_location *root_al, 169 int max_stack); 170 171 /* 172 * Default guest kernel is defined by parameter --guestkallsyms 173 * and --guestmodules 174 */ 175 static inline bool machine__is_default_guest(struct machine *machine) 176 { 177 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false; 178 } 179 180 static inline bool machine__is_host(struct machine *machine) 181 { 182 return machine ? machine->pid == HOST_KERNEL_ID : false; 183 } 184 185 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid); 186 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid); 187 188 struct dso *machine__findnew_dso(struct machine *machine, const char *filename); 189 190 size_t machine__fprintf(struct machine *machine, FILE *fp); 191 192 static inline 193 struct symbol *machine__find_kernel_symbol(struct machine *machine, 194 enum map_type type, u64 addr, 195 struct map **mapp) 196 { 197 return map_groups__find_symbol(&machine->kmaps, type, addr, mapp); 198 } 199 200 static inline 201 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine, 202 enum map_type type, const char *name, 203 struct map **mapp) 204 { 205 return map_groups__find_symbol_by_name(&machine->kmaps, type, name, mapp); 206 } 207 208 static inline 209 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr, 210 struct map **mapp) 211 { 212 return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr, 213 mapp); 214 } 215 216 static inline 217 struct symbol *machine__find_kernel_function_by_name(struct machine *machine, 218 const char *name, 219 struct map **mapp) 220 { 221 return map_groups__find_function_by_name(&machine->kmaps, name, mapp); 222 } 223 224 struct map *machine__findnew_module_map(struct machine *machine, u64 start, 225 const char *filename); 226 int arch__fix_module_text_start(u64 *start, const char *name); 227 228 int __machine__load_kallsyms(struct machine *machine, const char *filename, 229 enum map_type type, bool no_kcore); 230 int machine__load_kallsyms(struct machine *machine, const char *filename, 231 enum map_type type); 232 int machine__load_vmlinux_path(struct machine *machine, enum map_type type); 233 234 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp, 235 bool (skip)(struct dso *dso, int parm), int parm); 236 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp); 237 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp, 238 bool (skip)(struct dso *dso, int parm), int parm); 239 240 void machine__destroy_kernel_maps(struct machine *machine); 241 int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); 242 int machine__create_kernel_maps(struct machine *machine); 243 244 int machines__create_kernel_maps(struct machines *machines, pid_t pid); 245 int machines__create_guest_kernel_maps(struct machines *machines); 246 void machines__destroy_kernel_maps(struct machines *machines); 247 248 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); 249 250 int machine__for_each_thread(struct machine *machine, 251 int (*fn)(struct thread *thread, void *p), 252 void *priv); 253 int machines__for_each_thread(struct machines *machines, 254 int (*fn)(struct thread *thread, void *p), 255 void *priv); 256 257 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool, 258 struct target *target, struct thread_map *threads, 259 perf_event__handler_t process, bool data_mmap, 260 unsigned int proc_map_timeout, 261 unsigned int nr_threads_synthesize); 262 static inline 263 int machine__synthesize_threads(struct machine *machine, struct target *target, 264 struct thread_map *threads, bool data_mmap, 265 unsigned int proc_map_timeout, 266 unsigned int nr_threads_synthesize) 267 { 268 return __machine__synthesize_threads(machine, NULL, target, threads, 269 perf_event__process, data_mmap, 270 proc_map_timeout, 271 nr_threads_synthesize); 272 } 273 274 pid_t machine__get_current_tid(struct machine *machine, int cpu); 275 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid, 276 pid_t tid); 277 /* 278 * For use with libtraceevent's pevent_set_function_resolver() 279 */ 280 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp); 281 282 #endif /* __PERF_MACHINE_H */ 283