Loading...
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 "map_groups.h"
8#include "dsos.h"
9#include "rwsem.h"
10
11struct addr_location;
12struct branch_stack;
13struct dso;
14struct evsel;
15struct perf_sample;
16struct symbol;
17struct target;
18struct thread;
19union perf_event;
20
21/* Native host kernel uses -1 as pid index in machine */
22#define HOST_KERNEL_ID (-1)
23#define DEFAULT_GUEST_KERNEL_ID (0)
24
25extern const char *ref_reloc_sym_names[];
26
27struct vdso_info;
28
29#define THREADS__TABLE_BITS 8
30#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
31
32struct threads {
33 struct rb_root_cached entries;
34 struct rw_semaphore lock;
35 unsigned int nr;
36 struct list_head dead;
37 struct thread *last_match;
38};
39
40struct machine {
41 struct rb_node rb_node;
42 pid_t pid;
43 u16 id_hdr_size;
44 bool comm_exec;
45 bool kptr_restrict_warned;
46 bool single_address_space;
47 char *root_dir;
48 char *mmap_name;
49 struct threads threads[THREADS__TABLE_SIZE];
50 struct vdso_info *vdso_info;
51 struct perf_env *env;
52 struct dsos dsos;
53 struct map_groups kmaps;
54 struct map *vmlinux_map;
55 u64 kernel_start;
56 pid_t *current_tid;
57 union { /* Tool specific area */
58 void *priv;
59 u64 db_id;
60 };
61 bool trampolines_mapped;
62};
63
64static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
65{
66 /* Cast it to handle tid == -1 */
67 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
68}
69
70/*
71 * The main kernel (vmlinux) map
72 */
73static inline
74struct map *machine__kernel_map(struct machine *machine)
75{
76 return machine->vmlinux_map;
77}
78
79/*
80 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
81 */
82static inline
83struct maps *machine__kernel_maps(struct machine *machine)
84{
85 return &machine->kmaps.maps;
86}
87
88int machine__get_kernel_start(struct machine *machine);
89
90static inline u64 machine__kernel_start(struct machine *machine)
91{
92 if (!machine->kernel_start)
93 machine__get_kernel_start(machine);
94 return machine->kernel_start;
95}
96
97static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
98{
99 u64 kernel_start = machine__kernel_start(machine);
100
101 return ip >= kernel_start;
102}
103
104u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
105
106struct thread *machine__find_thread(struct machine *machine, pid_t pid,
107 pid_t tid);
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_switch_event(struct machine *machine,
126 union perf_event *event);
127int machine__process_namespaces_event(struct machine *machine,
128 union perf_event *event,
129 struct perf_sample *sample);
130int machine__process_mmap_event(struct machine *machine, union perf_event *event,
131 struct perf_sample *sample);
132int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
133 struct perf_sample *sample);
134int machine__process_ksymbol(struct machine *machine,
135 union perf_event *event,
136 struct perf_sample *sample);
137int machine__process_event(struct machine *machine, union perf_event *event,
138 struct perf_sample *sample);
139
140typedef void (*machine__process_t)(struct machine *machine, void *data);
141
142struct machines {
143 struct machine host;
144 struct rb_root_cached guests;
145};
146
147void machines__init(struct machines *machines);
148void machines__exit(struct machines *machines);
149
150void machines__process_guests(struct machines *machines,
151 machine__process_t process, void *data);
152
153struct machine *machines__add(struct machines *machines, pid_t pid,
154 const char *root_dir);
155struct machine *machines__find_host(struct machines *machines);
156struct machine *machines__find(struct machines *machines, pid_t pid);
157struct machine *machines__findnew(struct machines *machines, pid_t pid);
158
159void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
160void machines__set_comm_exec(struct machines *machines, bool comm_exec);
161
162struct machine *machine__new_host(void);
163struct machine *machine__new_kallsyms(void);
164int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
165void machine__exit(struct machine *machine);
166void machine__delete_threads(struct machine *machine);
167void machine__delete(struct machine *machine);
168void machine__remove_thread(struct machine *machine, struct thread *th);
169
170struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
171 struct addr_location *al);
172struct mem_info *sample__resolve_mem(struct perf_sample *sample,
173 struct addr_location *al);
174
175struct callchain_cursor;
176
177int thread__resolve_callchain(struct thread *thread,
178 struct callchain_cursor *cursor,
179 struct evsel *evsel,
180 struct perf_sample *sample,
181 struct symbol **parent,
182 struct addr_location *root_al,
183 int max_stack);
184
185/*
186 * Default guest kernel is defined by parameter --guestkallsyms
187 * and --guestmodules
188 */
189static inline bool machine__is_default_guest(struct machine *machine)
190{
191 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
192}
193
194static inline bool machine__is_host(struct machine *machine)
195{
196 return machine ? machine->pid == HOST_KERNEL_ID : false;
197}
198
199bool machine__is(struct machine *machine, const char *arch);
200int machine__nr_cpus_avail(struct machine *machine);
201
202struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
203struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
204
205struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
206
207size_t machine__fprintf(struct machine *machine, FILE *fp);
208
209static inline
210struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
211 struct map **mapp)
212{
213 return map_groups__find_symbol(&machine->kmaps, addr, mapp);
214}
215
216static inline
217struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
218 const char *name,
219 struct map **mapp)
220{
221 return map_groups__find_symbol_by_name(&machine->kmaps, name, mapp);
222}
223
224struct map *machine__findnew_module_map(struct machine *machine, u64 start,
225 const char *filename);
226int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
227
228int machine__load_kallsyms(struct machine *machine, const char *filename);
229
230int machine__load_vmlinux_path(struct machine *machine);
231
232size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
233 bool (skip)(struct dso *dso, int parm), int parm);
234size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
235size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
236 bool (skip)(struct dso *dso, int parm), int parm);
237
238void machine__destroy_kernel_maps(struct machine *machine);
239int machine__create_kernel_maps(struct machine *machine);
240
241int machines__create_kernel_maps(struct machines *machines, pid_t pid);
242int machines__create_guest_kernel_maps(struct machines *machines);
243void machines__destroy_kernel_maps(struct machines *machines);
244
245size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
246
247int machine__for_each_thread(struct machine *machine,
248 int (*fn)(struct thread *thread, void *p),
249 void *priv);
250int machines__for_each_thread(struct machines *machines,
251 int (*fn)(struct thread *thread, void *p),
252 void *priv);
253
254pid_t machine__get_current_tid(struct machine *machine, int cpu);
255int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
256 pid_t tid);
257/*
258 * For use with libtraceevent's tep_set_function_resolver()
259 */
260char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
261
262void machine__get_kallsyms_filename(struct machine *machine, char *buf,
263 size_t bufsz);
264
265int machine__create_extra_kernel_maps(struct machine *machine,
266 struct dso *kernel);
267
268/* Kernel-space maps for symbols that are outside the main kernel map and module maps */
269struct extra_kernel_map {
270 u64 start;
271 u64 end;
272 u64 pgoff;
273 char name[KMAP_NAME_LEN];
274};
275
276int machine__create_extra_kernel_map(struct machine *machine,
277 struct dso *kernel,
278 struct extra_kernel_map *xm);
279
280int machine__map_x86_64_entry_trampolines(struct machine *machine,
281 struct dso *kernel);
282
283#endif /* __PERF_MACHINE_H */
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
11struct addr_location;
12struct branch_stack;
13struct dso;
14struct dso_id;
15struct evsel;
16struct perf_sample;
17struct symbol;
18struct target;
19struct thread;
20union perf_event;
21
22/* Native host kernel uses -1 as pid index in machine */
23#define HOST_KERNEL_ID (-1)
24#define DEFAULT_GUEST_KERNEL_ID (0)
25
26extern const char *ref_reloc_sym_names[];
27
28struct vdso_info;
29
30#define THREADS__TABLE_BITS 8
31#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
32
33struct threads {
34 struct rb_root_cached entries;
35 struct rw_semaphore lock;
36 unsigned int nr;
37 struct list_head dead;
38 struct thread *last_match;
39};
40
41struct machine {
42 struct rb_node rb_node;
43 pid_t pid;
44 u16 id_hdr_size;
45 bool comm_exec;
46 bool kptr_restrict_warned;
47 bool single_address_space;
48 char *root_dir;
49 char *mmap_name;
50 struct threads threads[THREADS__TABLE_SIZE];
51 struct vdso_info *vdso_info;
52 struct perf_env *env;
53 struct dsos dsos;
54 struct maps kmaps;
55 struct map *vmlinux_map;
56 u64 kernel_start;
57 pid_t *current_tid;
58 union { /* Tool specific area */
59 void *priv;
60 u64 db_id;
61 };
62 bool trampolines_mapped;
63};
64
65static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
66{
67 /* Cast it to handle tid == -1 */
68 return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
69}
70
71/*
72 * The main kernel (vmlinux) map
73 */
74static inline
75struct map *machine__kernel_map(struct machine *machine)
76{
77 return machine->vmlinux_map;
78}
79
80/*
81 * kernel (the one returned by machine__kernel_map()) plus kernel modules maps
82 */
83static inline
84struct maps *machine__kernel_maps(struct machine *machine)
85{
86 return &machine->kmaps;
87}
88
89int machine__get_kernel_start(struct machine *machine);
90
91static inline u64 machine__kernel_start(struct machine *machine)
92{
93 if (!machine->kernel_start)
94 machine__get_kernel_start(machine);
95 return machine->kernel_start;
96}
97
98static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
99{
100 u64 kernel_start = machine__kernel_start(machine);
101
102 return ip >= kernel_start;
103}
104
105u8 machine__addr_cpumode(struct machine *machine, u8 cpumode, u64 addr);
106
107struct thread *machine__find_thread(struct machine *machine, pid_t pid,
108 pid_t tid);
109struct thread *machine__idle_thread(struct machine *machine);
110struct comm *machine__thread_exec_comm(struct machine *machine,
111 struct thread *thread);
112
113int machine__process_comm_event(struct machine *machine, union perf_event *event,
114 struct perf_sample *sample);
115int machine__process_exit_event(struct machine *machine, union perf_event *event,
116 struct perf_sample *sample);
117int machine__process_fork_event(struct machine *machine, union perf_event *event,
118 struct perf_sample *sample);
119int machine__process_lost_event(struct machine *machine, union perf_event *event,
120 struct perf_sample *sample);
121int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
122 struct perf_sample *sample);
123int machine__process_aux_event(struct machine *machine,
124 union perf_event *event);
125int machine__process_itrace_start_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
155void 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_host(struct machines *machines);
164struct machine *machines__find(struct machines *machines, pid_t pid);
165struct machine *machines__findnew(struct machines *machines, pid_t pid);
166struct machine *machines__find_guest(struct machines *machines, pid_t pid);
167
168void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
169void machines__set_comm_exec(struct machines *machines, bool comm_exec);
170
171struct machine *machine__new_host(void);
172struct machine *machine__new_kallsyms(void);
173int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
174void machine__exit(struct machine *machine);
175void machine__delete_threads(struct machine *machine);
176void machine__delete(struct machine *machine);
177void machine__remove_thread(struct machine *machine, struct thread *th);
178
179struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
180 struct addr_location *al);
181struct mem_info *sample__resolve_mem(struct perf_sample *sample,
182 struct addr_location *al);
183
184struct callchain_cursor;
185
186int thread__resolve_callchain(struct thread *thread,
187 struct callchain_cursor *cursor,
188 struct evsel *evsel,
189 struct perf_sample *sample,
190 struct symbol **parent,
191 struct addr_location *root_al,
192 int max_stack);
193
194/*
195 * Default guest kernel is defined by parameter --guestkallsyms
196 * and --guestmodules
197 */
198static inline bool machine__is_default_guest(struct machine *machine)
199{
200 return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
201}
202
203static inline bool machine__is_host(struct machine *machine)
204{
205 return machine ? machine->pid == HOST_KERNEL_ID : false;
206}
207
208bool machine__is(struct machine *machine, const char *arch);
209int machine__nr_cpus_avail(struct machine *machine);
210
211struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
212struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
213
214struct dso *machine__findnew_dso_id(struct machine *machine, const char *filename, struct dso_id *id);
215struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
216
217size_t machine__fprintf(struct machine *machine, FILE *fp);
218
219static inline
220struct symbol *machine__find_kernel_symbol(struct machine *machine, u64 addr,
221 struct map **mapp)
222{
223 return maps__find_symbol(&machine->kmaps, addr, mapp);
224}
225
226static inline
227struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
228 const char *name,
229 struct map **mapp)
230{
231 return maps__find_symbol_by_name(&machine->kmaps, name, mapp);
232}
233
234int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
235
236int machine__load_kallsyms(struct machine *machine, const char *filename);
237
238int machine__load_vmlinux_path(struct machine *machine);
239
240size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
241 bool (skip)(struct dso *dso, int parm), int parm);
242size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
243size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
244 bool (skip)(struct dso *dso, int parm), int parm);
245
246void machine__destroy_kernel_maps(struct machine *machine);
247int machine__create_kernel_maps(struct machine *machine);
248
249int machines__create_kernel_maps(struct machines *machines, pid_t pid);
250int machines__create_guest_kernel_maps(struct machines *machines);
251void machines__destroy_kernel_maps(struct machines *machines);
252
253size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
254
255typedef int (*machine__dso_t)(struct dso *dso, struct machine *machine, void *priv);
256
257int machine__for_each_dso(struct machine *machine, machine__dso_t fn,
258 void *priv);
259int machine__for_each_thread(struct machine *machine,
260 int (*fn)(struct thread *thread, void *p),
261 void *priv);
262int machines__for_each_thread(struct machines *machines,
263 int (*fn)(struct thread *thread, void *p),
264 void *priv);
265
266pid_t machine__get_current_tid(struct machine *machine, int cpu);
267int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
268 pid_t tid);
269/*
270 * For use with libtraceevent's tep_set_function_resolver()
271 */
272char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
273
274void machine__get_kallsyms_filename(struct machine *machine, char *buf,
275 size_t bufsz);
276
277int machine__create_extra_kernel_maps(struct machine *machine,
278 struct dso *kernel);
279
280/* Kernel-space maps for symbols that are outside the main kernel map and module maps */
281struct extra_kernel_map {
282 u64 start;
283 u64 end;
284 u64 pgoff;
285 char name[KMAP_NAME_LEN];
286};
287
288int machine__create_extra_kernel_map(struct machine *machine,
289 struct dso *kernel,
290 struct extra_kernel_map *xm);
291
292int machine__map_x86_64_entry_trampolines(struct machine *machine,
293 struct dso *kernel);
294
295#endif /* __PERF_MACHINE_H */