1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MACHINE_H
3 #define __PERF_MACHINE_H
6 #include <linux/rbtree.h>
20 /* Native host kernel uses -1 as pid index in machine */
21 #define HOST_KERNEL_ID (-1)
22 #define DEFAULT_GUEST_KERNEL_ID (0)
24 extern const char *ref_reloc_sym_names[];
28 #define THREADS__TABLE_BITS 8
29 #define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
32 struct rb_root entries;
33 struct rw_semaphore lock;
35 struct list_head dead;
36 struct thread *last_match;
40 struct rb_node rb_node;
44 bool kptr_restrict_warned;
47 struct threads threads[THREADS__TABLE_SIZE];
48 struct vdso_info *vdso_info;
51 struct map_groups kmaps;
52 struct map *vmlinux_maps[MAP__NR_TYPES];
55 union { /* Tool specific area */
61 static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
63 /* Cast it to handle tid == -1 */
64 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
68 struct map *__machine__kernel_map(struct machine *machine, enum map_type type)
70 return machine->vmlinux_maps[type];
74 * The main kernel (vmlinux) map
77 struct map *machine__kernel_map(struct machine *machine)
79 return __machine__kernel_map(machine, MAP__FUNCTION);
83 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
86 struct maps *machine__kernel_maps(struct machine *machine)
88 return &machine->kmaps.maps[MAP__FUNCTION];
91 int machine__get_kernel_start(struct machine *machine);
93 static inline u64 machine__kernel_start(struct machine *machine)
95 if (!machine->kernel_start)
96 machine__get_kernel_start(machine);
97 return machine->kernel_start;
100 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
102 u64 kernel_start = machine__kernel_start(machine);
104 return ip >= kernel_start;
107 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
109 struct comm *machine__thread_exec_comm(struct machine *machine,
110 struct thread *thread);
112 int machine__process_comm_event(struct machine *machine, union perf_event *event,
113 struct perf_sample *sample);
114 int machine__process_exit_event(struct machine *machine, union perf_event *event,
115 struct perf_sample *sample);
116 int machine__process_fork_event(struct machine *machine, union perf_event *event,
117 struct perf_sample *sample);
118 int machine__process_lost_event(struct machine *machine, union perf_event *event,
119 struct perf_sample *sample);
120 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
121 struct perf_sample *sample);
122 int machine__process_aux_event(struct machine *machine,
123 union perf_event *event);
124 int machine__process_itrace_start_event(struct machine *machine,
125 union perf_event *event);
126 int machine__process_switch_event(struct machine *machine,
127 union perf_event *event);
128 int machine__process_namespaces_event(struct machine *machine,
129 union perf_event *event,
130 struct perf_sample *sample);
131 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
132 struct perf_sample *sample);
133 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
134 struct perf_sample *sample);
135 int machine__process_event(struct machine *machine, union perf_event *event,
136 struct perf_sample *sample);
138 typedef void (*machine__process_t)(struct machine *machine, void *data);
142 struct rb_root guests;
145 void machines__init(struct machines *machines);
146 void machines__exit(struct machines *machines);
148 void machines__process_guests(struct machines *machines,
149 machine__process_t process, void *data);
151 struct machine *machines__add(struct machines *machines, pid_t pid,
152 const char *root_dir);
153 struct machine *machines__find_host(struct machines *machines);
154 struct machine *machines__find(struct machines *machines, pid_t pid);
155 struct machine *machines__findnew(struct machines *machines, pid_t pid);
157 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
158 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
160 struct machine *machine__new_host(void);
161 struct machine *machine__new_kallsyms(void);
162 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
163 void machine__exit(struct machine *machine);
164 void machine__delete_threads(struct machine *machine);
165 void machine__delete(struct machine *machine);
166 void machine__remove_thread(struct machine *machine, struct thread *th);
168 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
169 struct addr_location *al);
170 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
171 struct addr_location *al);
173 struct callchain_cursor;
175 int thread__resolve_callchain(struct thread *thread,
176 struct callchain_cursor *cursor,
177 struct perf_evsel *evsel,
178 struct perf_sample *sample,
179 struct symbol **parent,
180 struct addr_location *root_al,
184 * Default guest kernel is defined by parameter --guestkallsyms
187 static inline bool machine__is_default_guest(struct machine *machine)
189 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
192 static inline bool machine__is_host(struct machine *machine)
194 return machine ? machine->pid == HOST_KERNEL_ID : false;
197 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
198 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
200 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
202 size_t machine__fprintf(struct machine *machine, FILE *fp);
205 struct symbol *machine__find_kernel_symbol(struct machine *machine,
206 enum map_type type, u64 addr,
209 return map_groups__find_symbol(&machine->kmaps, type, addr, mapp);
213 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
214 enum map_type type, const char *name,
217 return map_groups__find_symbol_by_name(&machine->kmaps, type, name, mapp);
221 struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
224 return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
229 struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
233 return map_groups__find_function_by_name(&machine->kmaps, name, mapp);
236 struct map *machine__findnew_module_map(struct machine *machine, u64 start,
237 const char *filename);
238 int arch__fix_module_text_start(u64 *start, const char *name);
240 int __machine__load_kallsyms(struct machine *machine, const char *filename,
243 static inline int machine__load_kallsyms(struct machine *machine, const char *filename)
245 return __machine__load_kallsyms(machine, filename, MAP__FUNCTION);
248 int machine__load_vmlinux_path(struct machine *machine, enum map_type type);
250 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
251 bool (skip)(struct dso *dso, int parm), int parm);
252 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
253 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
254 bool (skip)(struct dso *dso, int parm), int parm);
256 void machine__destroy_kernel_maps(struct machine *machine);
257 int machine__create_kernel_maps(struct machine *machine);
259 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
260 int machines__create_guest_kernel_maps(struct machines *machines);
261 void machines__destroy_kernel_maps(struct machines *machines);
263 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
265 int machine__for_each_thread(struct machine *machine,
266 int (*fn)(struct thread *thread, void *p),
268 int machines__for_each_thread(struct machines *machines,
269 int (*fn)(struct thread *thread, void *p),
272 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
273 struct target *target, struct thread_map *threads,
274 perf_event__handler_t process, bool data_mmap,
275 unsigned int proc_map_timeout,
276 unsigned int nr_threads_synthesize);
278 int machine__synthesize_threads(struct machine *machine, struct target *target,
279 struct thread_map *threads, bool data_mmap,
280 unsigned int proc_map_timeout,
281 unsigned int nr_threads_synthesize)
283 return __machine__synthesize_threads(machine, NULL, target, threads,
284 perf_event__process, data_mmap,
286 nr_threads_synthesize);
289 pid_t machine__get_current_tid(struct machine *machine, int cpu);
290 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
293 * For use with libtraceevent's pevent_set_function_resolver()
295 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
297 #endif /* __PERF_MACHINE_H */