1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MACHINE_H
3 #define __PERF_MACHINE_H
4
5 #include <sys/types.h>
6 #include <linux/rbtree.h>
7 #include "maps.h"
8 #include "dsos.h"
9 #include "rwsem.h"
10 #include "threads.h"
11
12 struct addr_location;
13 struct branch_stack;
14 struct dso;
15 struct dso_id;
16 struct evsel;
17 struct perf_sample;
18 struct symbol;
19 struct target;
20 struct thread;
21 union perf_event;
22 struct machines;
23
24 /* Native host kernel uses -1 as pid index in machine */
25 #define HOST_KERNEL_ID (-1)
26 #define DEFAULT_GUEST_KERNEL_ID (0)
27
28 extern const char *ref_reloc_sym_names[];
29
30 struct vdso_info;
31
32 struct machine {
33 struct rb_node rb_node;
34 pid_t pid;
35 u16 id_hdr_size;
36 bool comm_exec;
37 bool kptr_restrict_warned;
38 bool single_address_space;
39 char *root_dir;
40 char *mmap_name;
41 char *kallsyms_filename;
42 struct threads threads;
43 struct vdso_info *vdso_info;
44 struct perf_env *env;
45 struct dsos dsos;
46 struct maps *kmaps;
47 struct map *vmlinux_map;
48 u64 kernel_start;
49 struct {
50 u64 text_start;
51 u64 text_end;
52 } sched, lock, traceiter, trace;
53 /*
54 * The current parallelism level (number of threads that run on CPUs).
55 * This value can be less than 1, or larger than the total number
56 * of CPUs, if events are poorly ordered.
57 */
58 int parallelism;
59 pid_t *current_tid;
60 size_t current_tid_sz;
61 union { /* Tool specific area */
62 void *priv;
63 u64 db_id;
64 };
65 struct machines *machines;
66 bool trampolines_mapped;
67 };
68
69 /*
70 * The main kernel (vmlinux) map
71 */
72 static inline
machine__kernel_map(struct machine * machine)73 struct map *machine__kernel_map(struct machine *machine)
74 {
75 return machine->vmlinux_map;
76 }
77
78 /*
79 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
80 */
81 static inline
machine__kernel_maps(struct machine * machine)82 struct maps *machine__kernel_maps(struct machine *machine)
83 {
84 return machine->kmaps;
85 }
86
87 int machine__get_kernel_start(struct machine *machine);
88
machine__kernel_start(struct machine * machine)89 static inline u64 machine__kernel_start(struct machine *machine)
90 {
91 if (!machine->kernel_start)
92 machine__get_kernel_start(machine);
93 return machine->kernel_start;
94 }
95
machine__kernel_ip(struct machine * machine,u64 ip)96 static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
97 {
98 u64 kernel_start = machine__kernel_start(machine);
99
100 return ip >= kernel_start;
101 }
102
103 u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
104
105 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
106 pid_t tid);
107 struct thread *machine__idle_thread(struct machine *machine);
108 struct comm *machine__thread_exec_comm(struct machine *machine,
109 struct thread *thread);
110
111 int machine__process_comm_event(struct machine *machine, union perf_event *event,
112 struct perf_sample *sample);
113 int machine__process_exit_event(struct machine *machine, union perf_event *event,
114 struct perf_sample *sample);
115 int machine__process_fork_event(struct machine *machine, union perf_event *event,
116 struct perf_sample *sample);
117 int machine__process_lost_event(struct machine *machine, union perf_event *event,
118 struct perf_sample *sample);
119 int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
120 struct perf_sample *sample);
121 int machine__process_aux_event(struct machine *machine,
122 union perf_event *event);
123 int machine__process_itrace_start_event(struct machine *machine,
124 union perf_event *event);
125 int machine__process_aux_output_hw_id_event(struct machine *machine,
126 union perf_event *event);
127 int machine__process_switch_event(struct machine *machine,
128 union perf_event *event);
129 int machine__process_namespaces_event(struct machine *machine,
130 union perf_event *event,
131 struct perf_sample *sample);
132 int machine__process_cgroup_event(struct machine *machine,
133 union perf_event *event,
134 struct perf_sample *sample);
135 int machine__process_mmap_event(struct machine *machine, union perf_event *event,
136 struct perf_sample *sample);
137 int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
138 struct perf_sample *sample);
139 int machine__process_ksymbol(struct machine *machine,
140 union perf_event *event,
141 struct perf_sample *sample);
142 int machine__process_text_poke(struct machine *machine,
143 union perf_event *event,
144 struct perf_sample *sample);
145 int machine__process_event(struct machine *machine, union perf_event *event,
146 struct perf_sample *sample);
147
148 typedef void (*machine__process_t)(struct machine *machine, void *data);
149
150 struct machines {
151 struct machine host;
152 struct rb_root_cached guests;
153 };
154
155 void machines__init(struct machines *machines);
156 void machines__exit(struct machines *machines);
157
158 void machines__process_guests(struct machines *machines,
159 machine__process_t process, void *data);
160
161 struct machine *machines__add(struct machines *machines, pid_t pid,
162 const char *root_dir);
163 struct machine *machines__find(struct machines *machines, pid_t pid);
164 struct machine *machines__findnew(struct machines *machines, pid_t pid);
165 struct machine *machines__find_guest(struct machines *machines, pid_t pid);
166 struct thread *machines__findnew_guest_code(struct machines *machines, pid_t pid);
167 struct thread *machine__findnew_guest_code(struct machine *machine, pid_t pid);
168
169 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
170 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
171
172 struct machine *machine__new_host(struct perf_env *host_env);
173 struct machine *machine__new_kallsyms(struct perf_env *host_env);
174 struct machine *machine__new_live(struct perf_env *host_env, bool kernel_maps, pid_t pid);
175 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
176 void machine__exit(struct machine *machine);
177 void machine__delete_threads(struct machine *machine);
178 void machine__delete(struct machine *machine);
179 void machine__remove_thread(struct machine *machine, struct thread *th);
180
181 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
182 struct addr_location *al);
183 struct mem_info *sample__resolve_mem(struct perf_sample *sample,
184 struct addr_location *al);
185
186 struct callchain_cursor;
187
188 int __thread__resolve_callchain(struct thread *thread,
189 struct callchain_cursor *cursor,
190 struct evsel *evsel,
191 struct perf_sample *sample,
192 struct symbol **parent,
193 struct addr_location *root_al,
194 int max_stack,
195 bool symbols);
196
thread__resolve_callchain(struct thread * thread,struct callchain_cursor * cursor,struct evsel * evsel,struct perf_sample * sample,struct symbol ** parent,struct addr_location * root_al,int max_stack)197 static inline int thread__resolve_callchain(struct thread *thread,
198 struct callchain_cursor *cursor,
199 struct evsel *evsel,
200 struct perf_sample *sample,
201 struct symbol **parent,
202 struct addr_location *root_al,
203 int max_stack)
204 {
205 return __thread__resolve_callchain(thread,
206 cursor,
207 evsel,
208 sample,
209 parent,
210 root_al,
211 max_stack,
212 /*symbols=*/true);
213 }
214
215 /*
216 * Default guest kernel is defined by parameter --guestkallsyms
217 * and --guestmodules
218 */
machine__is_default_guest(struct machine * machine)219 static inline bool machine__is_default_guest(struct machine *machine)
220 {
221 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
222 }
223
machine__is_host(struct machine * machine)224 static inline bool machine__is_host(struct machine *machine)
225 {
226 return machine ? machine->pid == HOST_KERNEL_ID : false;
227 }
228
229 bool machine__is_lock_function(struct machine *machine, u64 addr);
230 bool machine__is(struct machine *machine, const char *arch);
231 bool machine__normalized_is(struct machine *machine, const char *arch);
232 int machine__nr_cpus_avail(struct machine *machine);
233
234 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
235
236 struct dso *machine__findnew_dso_id(struct machine *machine, const char *filename,
237 const struct dso_id *id);
238 struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
239
240 size_t machine__fprintf(struct machine *machine, FILE *fp);
241
242 static inline
machine__find_kernel_symbol(struct machine * machine,u64 addr,struct map ** mapp)243 struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
244 struct map **mapp)
245 {
246 return maps__find_symbol(machine->kmaps, addr, mapp);
247 }
248
249 static inline
machine__find_kernel_symbol_by_name(struct machine * machine,const char * name,struct map ** mapp)250 struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
251 const char *name,
252 struct map **mapp)
253 {
254 return maps__find_symbol_by_name(machine->kmaps, name, mapp);
255 }
256
257 int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
258
259 int machine__load_kallsyms(struct machine *machine, const char *filename);
260
261 int machine__load_vmlinux_path(struct machine *machine);
262
263 size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
264 bool (skip)(struct dso *dso, int parm), int parm);
265 size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
266 size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
267 bool (skip)(struct dso *dso, int parm), int parm);
268
269 void machine__destroy_kernel_maps(struct machine *machine);
270 int machine__create_kernel_maps(struct machine *machine);
271
272 int machines__create_kernel_maps(struct machines *machines, pid_t pid);
273 int machines__create_guest_kernel_maps(struct machines *machines);
274 void machines__destroy_kernel_maps(struct machines *machines);
275
276 typedef int (*machine__dso_t)(struct dso *dso, struct machine *machine, void *priv);
277
278 int machine__for_each_dso(struct machine *machine, machine__dso_t fn,
279 void *priv);
280
281 typedef int (*machine__map_t)(struct map *map, void *priv);
282 int machine__for_each_kernel_map(struct machine *machine, machine__map_t fn,
283 void *priv);
284
285 int machine__for_each_thread(struct machine *machine,
286 int (*fn)(struct thread *thread, void *p),
287 void *priv);
288 int machines__for_each_thread(struct machines *machines,
289 int (*fn)(struct thread *thread, void *p),
290 void *priv);
291
292 struct thread_list {
293 struct list_head list;
294 struct thread *thread;
295 };
296
297 /* Make a list of struct thread_list based on threads in the machine. */
298 int machine__thread_list(struct machine *machine, struct list_head *list);
299 /* Free up the nodes within the thread_list list. */
300 void thread_list__delete(struct list_head *list);
301
302 pid_t machine__get_current_tid(struct machine *machine, int cpu);
303 int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
304 pid_t tid);
305 /*
306 * For use with libtraceevent's tep_set_function_resolver()
307 */
308 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
309
310 void machine__get_kallsyms_filename(struct machine *machine, char *buf,
311 size_t bufsz);
312
313 int machine__create_extra_kernel_maps(struct machine *machine,
314 struct dso *kernel);
315
316 /* Kernel-space maps for symbols that are outside the main kernel map and module maps */
317 struct extra_kernel_map {
318 u64 start;
319 u64 end;
320 u64 pgoff;
321 char name[KMAP_NAME_LEN];
322 };
323
324 int machine__create_extra_kernel_map(struct machine *machine,
325 struct dso *kernel,
326 struct extra_kernel_map *xm);
327
328 int machine__map_x86_64_entry_trampolines(struct machine *machine,
329 struct dso *kernel);
330
331 int machine__resolve(struct machine *machine, struct addr_location *al,
332 struct perf_sample *sample);
333
334 int machine__hit_all_dsos(struct machine *machine);
335
336 #endif /* __PERF_MACHINE_H */
337