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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
12struct addr_location;
13struct branch_stack;
14struct dso;
15struct dso_id;
16struct evsel;
17struct perf_sample;
18struct symbol;
19struct target;
20struct thread;
21union perf_event;
22struct 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
28extern const char *ref_reloc_sym_names[];
29
30struct vdso_info;
31
32struct 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 */
72static inline
73struct 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 */
81static inline
82struct maps *machine__kernel_maps(struct machine *machine)
83{
84 return machine->kmaps;
85}
86
87int machine__get_kernel_start(struct machine *machine);
88
89static 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
96static 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
103u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
104
105struct thread *machine__find_thread(struct machine *machine, pid_t pid,
106 pid_t tid);
107struct thread *machine__idle_thread(struct machine *machine);
108struct comm *machine__thread_exec_comm(struct machine *machine,
109 struct thread *thread);
110
111int machine__process_comm_event(struct machine *machine, union perf_event *event,
112 struct perf_sample *sample);
113int machine__process_exit_event(struct machine *machine, union perf_event *event,
114 struct perf_sample *sample);
115int machine__process_fork_event(struct machine *machine, union perf_event *event,
116 struct perf_sample *sample);
117int machine__process_lost_event(struct machine *machine, union perf_event *event,
118 struct perf_sample *sample);
119int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
120 struct perf_sample *sample);
121int machine__process_aux_event(struct machine *machine,
122 union perf_event *event);
123int machine__process_itrace_start_event(struct machine *machine,
124 union perf_event *event);
125int machine__process_aux_output_hw_id_event(struct machine *machine,
126 union perf_event *event);
127int machine__process_switch_event(struct machine *machine,
128 union perf_event *event);
129int machine__process_namespaces_event(struct machine *machine,
130 union perf_event *event,
131 struct perf_sample *sample);
132int machine__process_cgroup_event(struct machine *machine,
133 union perf_event *event,
134 struct perf_sample *sample);
135int machine__process_mmap_event(struct machine *machine, union perf_event *event,
136 struct perf_sample *sample);
137int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
138 struct perf_sample *sample);
139int machine__process_ksymbol(struct machine *machine,
140 union perf_event *event,
141 struct perf_sample *sample);
142int machine__process_text_poke(struct machine *machine,
143 union perf_event *event,
144 struct perf_sample *sample);
145int machine__process_event(struct machine *machine, union perf_event *event,
146 struct perf_sample *sample);
147
148typedef void (*machine__process_t)(struct machine *machine, void *data);
149
150struct machines {
151 struct machine host;
152 struct rb_root_cached guests;
153};
154
155int machines__init(struct machines *machines);
156void machines__exit(struct machines *machines);
157
158void machines__process_guests(struct machines *machines,
159 machine__process_t process, void *data);
160
161struct machine *machines__add(struct machines *machines, pid_t pid,
162 const char *root_dir);
163struct machine *machines__find(struct machines *machines, pid_t pid);
164struct machine *machines__findnew(struct machines *machines, pid_t pid);
165struct machine *machines__find_guest(struct machines *machines, pid_t pid);
166struct thread *machines__findnew_guest_code(struct machines *machines, pid_t pid);
167struct thread *machine__findnew_guest_code(struct machine *machine, pid_t pid);
168
169void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
170void machines__set_comm_exec(struct machines *machines, bool comm_exec);
171
172struct machine *machine__new_host(struct perf_env *host_env);
173struct machine *machine__new_kallsyms(struct perf_env *host_env);
174struct machine *machine__new_live(struct perf_env *host_env, bool kernel_maps, pid_t pid);
175int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
176void machine__exit(struct machine *machine);
177void machine__delete_threads(struct machine *machine);
178void machine__delete(struct machine *machine);
179void machine__remove_thread(struct machine *machine, struct thread *th);
180
181struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
182 struct addr_location *al);
183struct mem_info *sample__resolve_mem(struct perf_sample *sample,
184 struct addr_location *al);
185
186struct callchain_cursor;
187
188int __thread__resolve_callchain(struct thread *thread,
189 struct callchain_cursor *cursor,
190 struct perf_sample *sample,
191 struct symbol **parent,
192 struct addr_location *root_al,
193 int max_stack,
194 bool symbols);
195
196static inline int thread__resolve_callchain(struct thread *thread,
197 struct callchain_cursor *cursor,
198 struct perf_sample *sample,
199 struct symbol **parent,
200 struct addr_location *root_al,
201 int max_stack)
202{
203 return __thread__resolve_callchain(thread,
204 cursor,
205 sample,
206 parent,
207 root_al,
208 max_stack,
209 /*symbols=*/true);
210}
211
212/*
213 * Default guest kernel is defined by parameter --guestkallsyms
214 * and --guestmodules
215 */
216static inline bool machine__is_default_guest(struct machine *machine)
217{
218 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
219}
220
221static inline bool machine__is_host(struct machine *machine)
222{
223 return machine ? machine->pid == HOST_KERNEL_ID : false;
224}
225
226bool machine__is_lock_function(struct machine *machine, u64 addr);
227int machine__nr_cpus_avail(struct machine *machine);
228
229struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
230
231struct dso *machine__findnew_dso_id(struct machine *machine, const char *filename,
232 const struct dso_id *id);
233struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
234
235size_t machine__fprintf(struct machine *machine, FILE *fp);
236
237static inline
238struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
239 struct map **mapp)
240{
241 return maps__find_symbol(machine->kmaps, addr, mapp);
242}
243
244static inline
245struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
246 const char *name,
247 struct map **mapp)
248{
249 return maps__find_symbol_by_name(machine->kmaps, name, mapp);
250}
251
252int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
253
254int machine__load_kallsyms(struct machine *machine, const char *filename);
255
256int machine__load_vmlinux_path(struct machine *machine);
257
258size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
259 bool (skip)(struct dso *dso, int parm), int parm);
260size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
261size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
262 bool (skip)(struct dso *dso, int parm), int parm);
263
264void machine__destroy_kernel_maps(struct machine *machine);
265int machine__create_kernel_maps(struct machine *machine);
266
267int machines__create_kernel_maps(struct machines *machines, pid_t pid);
268int machines__create_guest_kernel_maps(struct machines *machines);
269void machines__destroy_kernel_maps(struct machines *machines);
270
271typedef int (*machine__dso_t)(struct dso *dso, struct machine *machine, void *priv);
272
273int machine__for_each_dso(struct machine *machine, machine__dso_t fn,
274 void *priv);
275
276typedef int (*machine__map_t)(struct map *map, void *priv);
277int machine__for_each_kernel_map(struct machine *machine, machine__map_t fn,
278 void *priv);
279
280int machine__for_each_thread(struct machine *machine,
281 int (*fn)(struct thread *thread, void *p),
282 void *priv);
283int machines__for_each_thread(struct machines *machines,
284 int (*fn)(struct thread *thread, void *p),
285 void *priv);
286
287struct 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. */
293int machine__thread_list(struct machine *machine, struct list_head *list);
294/* Free up the nodes within the thread_list list. */
295void thread_list__delete(struct list_head *list);
296
297pid_t machine__get_current_tid(struct machine *machine, int cpu);
298int 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 */
303char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
304
305void machine__get_kallsyms_filename(struct machine *machine, char *buf,
306 size_t bufsz);
307
308int 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 */
312struct extra_kernel_map {
313 u64 start;
314 u64 end;
315 u64 pgoff;
316 char name[KMAP_NAME_LEN];
317};
318
319int machine__create_extra_kernel_map(struct machine *machine,
320 struct dso *kernel,
321 struct extra_kernel_map *xm);
322
323int machine__map_x86_64_entry_trampolines(struct machine *machine,
324 struct dso *kernel);
325
326int machine__resolve(struct machine *machine, struct addr_location *al,
327 struct perf_sample *sample);
328
329int machine__hit_all_dsos(struct machine *machine);
330
331#endif /* __PERF_MACHINE_H */