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