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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_THREAD_H
3#define __PERF_THREAD_H
4
5#include <linux/refcount.h>
6#include <linux/rbtree.h>
7#include <linux/list.h>
8#include <unistd.h>
9#include <sys/types.h>
10#include "symbol.h"
11#include <strlist.h>
12#include <intlist.h>
13#include "rwsem.h"
14
15struct thread_stack;
16struct unwind_libunwind_ops;
17
18struct thread {
19 union {
20 struct rb_node rb_node;
21 struct list_head node;
22 };
23 struct map_groups *mg;
24 pid_t pid_; /* Not all tools update this */
25 pid_t tid;
26 pid_t ppid;
27 int cpu;
28 refcount_t refcnt;
29 bool comm_set;
30 int comm_len;
31 bool dead; /* if set thread has exited */
32 struct list_head namespaces_list;
33 struct rw_semaphore namespaces_lock;
34 struct list_head comm_list;
35 struct rw_semaphore comm_lock;
36 u64 db_id;
37
38 void *priv;
39 struct thread_stack *ts;
40 struct nsinfo *nsinfo;
41#ifdef HAVE_LIBUNWIND_SUPPORT
42 void *addr_space;
43 struct unwind_libunwind_ops *unwind_libunwind_ops;
44#endif
45};
46
47struct machine;
48struct namespaces;
49struct comm;
50
51struct thread *thread__new(pid_t pid, pid_t tid);
52int thread__init_map_groups(struct thread *thread, struct machine *machine);
53void thread__delete(struct thread *thread);
54
55struct thread *thread__get(struct thread *thread);
56void thread__put(struct thread *thread);
57
58static inline void __thread__zput(struct thread **thread)
59{
60 thread__put(*thread);
61 *thread = NULL;
62}
63
64#define thread__zput(thread) __thread__zput(&thread)
65
66static inline void thread__exited(struct thread *thread)
67{
68 thread->dead = true;
69}
70
71struct namespaces *thread__namespaces(const struct thread *thread);
72int thread__set_namespaces(struct thread *thread, u64 timestamp,
73 struct namespaces_event *event);
74
75int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
76 bool exec);
77static inline int thread__set_comm(struct thread *thread, const char *comm,
78 u64 timestamp)
79{
80 return __thread__set_comm(thread, comm, timestamp, false);
81}
82
83int thread__set_comm_from_proc(struct thread *thread);
84
85int thread__comm_len(struct thread *thread);
86struct comm *thread__comm(const struct thread *thread);
87struct comm *thread__exec_comm(const struct thread *thread);
88const char *thread__comm_str(const struct thread *thread);
89int thread__insert_map(struct thread *thread, struct map *map);
90int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
91size_t thread__fprintf(struct thread *thread, FILE *fp);
92
93struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
94
95void thread__find_addr_map(struct thread *thread,
96 u8 cpumode, enum map_type type, u64 addr,
97 struct addr_location *al);
98
99void thread__find_addr_location(struct thread *thread,
100 u8 cpumode, enum map_type type, u64 addr,
101 struct addr_location *al);
102
103void thread__find_cpumode_addr_location(struct thread *thread,
104 enum map_type type, u64 addr,
105 struct addr_location *al);
106
107static inline void *thread__priv(struct thread *thread)
108{
109 return thread->priv;
110}
111
112static inline void thread__set_priv(struct thread *thread, void *p)
113{
114 thread->priv = p;
115}
116
117static inline bool thread__is_filtered(struct thread *thread)
118{
119 if (symbol_conf.comm_list &&
120 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
121 return true;
122 }
123
124 if (symbol_conf.pid_list &&
125 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
126 return true;
127 }
128
129 if (symbol_conf.tid_list &&
130 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
131 return true;
132 }
133
134 return false;
135}
136
137#endif /* __PERF_THREAD_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_THREAD_H
3#define __PERF_THREAD_H
4
5#include <linux/refcount.h>
6#include <linux/list.h>
7#include <stdio.h>
8#include <unistd.h>
9#include <sys/types.h>
10#include "srccode.h"
11#include "symbol_conf.h"
12#include <strlist.h>
13#include <intlist.h>
14#include "rwsem.h"
15#include "callchain.h"
16#include <internal/rc_check.h>
17
18struct addr_location;
19struct map;
20struct perf_record_namespaces;
21struct thread_stack;
22struct unwind_libunwind_ops;
23
24struct lbr_stitch {
25 struct list_head lists;
26 struct list_head free_lists;
27 struct perf_sample prev_sample;
28 struct callchain_cursor_node *prev_lbr_cursor;
29};
30
31DECLARE_RC_STRUCT(thread) {
32 /** @maps: mmaps associated with this thread. */
33 struct maps *maps;
34 pid_t pid_; /* Not all tools update this */
35 /** @tid: thread ID number unique to a machine. */
36 pid_t tid;
37 /** @ppid: parent process of the process this thread belongs to. */
38 pid_t ppid;
39 int cpu;
40 int guest_cpu; /* For QEMU thread */
41 refcount_t refcnt;
42 /**
43 * @exited: Has the thread had an exit event. Such threads are usually
44 * removed from the machine's threads but some events/tools require
45 * access to dead threads.
46 */
47 bool exited;
48 bool comm_set;
49 int comm_len;
50 struct list_head namespaces_list;
51 struct rw_semaphore namespaces_lock;
52 struct list_head comm_list;
53 struct rw_semaphore comm_lock;
54 u64 db_id;
55
56 void *priv;
57 struct thread_stack *ts;
58 struct nsinfo *nsinfo;
59 struct srccode_state srccode_state;
60 bool filter;
61 int filter_entry_depth;
62
63 /* LBR call stack stitch */
64 bool lbr_stitch_enable;
65 struct lbr_stitch *lbr_stitch;
66};
67
68struct machine;
69struct namespaces;
70struct comm;
71
72struct thread *thread__new(pid_t pid, pid_t tid);
73int thread__init_maps(struct thread *thread, struct machine *machine);
74void thread__delete(struct thread *thread);
75
76void thread__set_priv_destructor(void (*destructor)(void *priv));
77
78struct thread *thread__get(struct thread *thread);
79void thread__put(struct thread *thread);
80
81static inline void __thread__zput(struct thread **thread)
82{
83 thread__put(*thread);
84 *thread = NULL;
85}
86
87#define thread__zput(thread) __thread__zput(&thread)
88
89struct namespaces *thread__namespaces(struct thread *thread);
90int thread__set_namespaces(struct thread *thread, u64 timestamp,
91 struct perf_record_namespaces *event);
92
93int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
94 bool exec);
95static inline int thread__set_comm(struct thread *thread, const char *comm,
96 u64 timestamp)
97{
98 return __thread__set_comm(thread, comm, timestamp, false);
99}
100
101int thread__set_comm_from_proc(struct thread *thread);
102
103int thread__comm_len(struct thread *thread);
104struct comm *thread__comm(struct thread *thread);
105struct comm *thread__exec_comm(struct thread *thread);
106const char *thread__comm_str(struct thread *thread);
107int thread__insert_map(struct thread *thread, struct map *map);
108int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
109size_t thread__fprintf(struct thread *thread, FILE *fp);
110
111struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
112
113struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
114 struct addr_location *al);
115struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
116 struct addr_location *al);
117
118struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
119 u64 addr, struct addr_location *al);
120struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
121 u64 addr, struct addr_location *al);
122
123void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
124 struct addr_location *al);
125
126int thread__memcpy(struct thread *thread, struct machine *machine,
127 void *buf, u64 ip, int len, bool *is64bit);
128
129static inline struct maps *thread__maps(struct thread *thread)
130{
131 return RC_CHK_ACCESS(thread)->maps;
132}
133
134static inline void thread__set_maps(struct thread *thread, struct maps *maps)
135{
136 RC_CHK_ACCESS(thread)->maps = maps;
137}
138
139static inline pid_t thread__pid(const struct thread *thread)
140{
141 return RC_CHK_ACCESS(thread)->pid_;
142}
143
144static inline void thread__set_pid(struct thread *thread, pid_t pid_)
145{
146 RC_CHK_ACCESS(thread)->pid_ = pid_;
147}
148
149static inline pid_t thread__tid(const struct thread *thread)
150{
151 return RC_CHK_ACCESS(thread)->tid;
152}
153
154static inline void thread__set_tid(struct thread *thread, pid_t tid)
155{
156 RC_CHK_ACCESS(thread)->tid = tid;
157}
158
159static inline pid_t thread__ppid(const struct thread *thread)
160{
161 return RC_CHK_ACCESS(thread)->ppid;
162}
163
164static inline void thread__set_ppid(struct thread *thread, pid_t ppid)
165{
166 RC_CHK_ACCESS(thread)->ppid = ppid;
167}
168
169static inline int thread__cpu(const struct thread *thread)
170{
171 return RC_CHK_ACCESS(thread)->cpu;
172}
173
174static inline void thread__set_cpu(struct thread *thread, int cpu)
175{
176 RC_CHK_ACCESS(thread)->cpu = cpu;
177}
178
179static inline int thread__guest_cpu(const struct thread *thread)
180{
181 return RC_CHK_ACCESS(thread)->guest_cpu;
182}
183
184static inline void thread__set_guest_cpu(struct thread *thread, int guest_cpu)
185{
186 RC_CHK_ACCESS(thread)->guest_cpu = guest_cpu;
187}
188
189static inline refcount_t *thread__refcnt(struct thread *thread)
190{
191 return &RC_CHK_ACCESS(thread)->refcnt;
192}
193
194static inline void thread__set_exited(struct thread *thread, bool exited)
195{
196 RC_CHK_ACCESS(thread)->exited = exited;
197}
198
199static inline bool thread__comm_set(const struct thread *thread)
200{
201 return RC_CHK_ACCESS(thread)->comm_set;
202}
203
204static inline void thread__set_comm_set(struct thread *thread, bool set)
205{
206 RC_CHK_ACCESS(thread)->comm_set = set;
207}
208
209static inline int thread__var_comm_len(const struct thread *thread)
210{
211 return RC_CHK_ACCESS(thread)->comm_len;
212}
213
214static inline void thread__set_comm_len(struct thread *thread, int len)
215{
216 RC_CHK_ACCESS(thread)->comm_len = len;
217}
218
219static inline struct list_head *thread__namespaces_list(struct thread *thread)
220{
221 return &RC_CHK_ACCESS(thread)->namespaces_list;
222}
223
224static inline int thread__namespaces_list_empty(const struct thread *thread)
225{
226 return list_empty(&RC_CHK_ACCESS(thread)->namespaces_list);
227}
228
229static inline struct rw_semaphore *thread__namespaces_lock(struct thread *thread)
230{
231 return &RC_CHK_ACCESS(thread)->namespaces_lock;
232}
233
234static inline struct list_head *thread__comm_list(struct thread *thread)
235{
236 return &RC_CHK_ACCESS(thread)->comm_list;
237}
238
239static inline struct rw_semaphore *thread__comm_lock(struct thread *thread)
240{
241 return &RC_CHK_ACCESS(thread)->comm_lock;
242}
243
244static inline u64 thread__db_id(const struct thread *thread)
245{
246 return RC_CHK_ACCESS(thread)->db_id;
247}
248
249static inline void thread__set_db_id(struct thread *thread, u64 db_id)
250{
251 RC_CHK_ACCESS(thread)->db_id = db_id;
252}
253
254static inline void *thread__priv(struct thread *thread)
255{
256 return RC_CHK_ACCESS(thread)->priv;
257}
258
259static inline void thread__set_priv(struct thread *thread, void *p)
260{
261 RC_CHK_ACCESS(thread)->priv = p;
262}
263
264static inline struct thread_stack *thread__ts(struct thread *thread)
265{
266 return RC_CHK_ACCESS(thread)->ts;
267}
268
269static inline void thread__set_ts(struct thread *thread, struct thread_stack *ts)
270{
271 RC_CHK_ACCESS(thread)->ts = ts;
272}
273
274static inline struct nsinfo *thread__nsinfo(struct thread *thread)
275{
276 return RC_CHK_ACCESS(thread)->nsinfo;
277}
278
279static inline struct srccode_state *thread__srccode_state(struct thread *thread)
280{
281 return &RC_CHK_ACCESS(thread)->srccode_state;
282}
283
284static inline bool thread__filter(const struct thread *thread)
285{
286 return RC_CHK_ACCESS(thread)->filter;
287}
288
289static inline void thread__set_filter(struct thread *thread, bool filter)
290{
291 RC_CHK_ACCESS(thread)->filter = filter;
292}
293
294static inline int thread__filter_entry_depth(const struct thread *thread)
295{
296 return RC_CHK_ACCESS(thread)->filter_entry_depth;
297}
298
299static inline void thread__set_filter_entry_depth(struct thread *thread, int depth)
300{
301 RC_CHK_ACCESS(thread)->filter_entry_depth = depth;
302}
303
304static inline bool thread__lbr_stitch_enable(const struct thread *thread)
305{
306 return RC_CHK_ACCESS(thread)->lbr_stitch_enable;
307}
308
309static inline void thread__set_lbr_stitch_enable(struct thread *thread, bool en)
310{
311 RC_CHK_ACCESS(thread)->lbr_stitch_enable = en;
312}
313
314static inline struct lbr_stitch *thread__lbr_stitch(struct thread *thread)
315{
316 return RC_CHK_ACCESS(thread)->lbr_stitch;
317}
318
319static inline void thread__set_lbr_stitch(struct thread *thread, struct lbr_stitch *lbrs)
320{
321 RC_CHK_ACCESS(thread)->lbr_stitch = lbrs;
322}
323
324static inline bool thread__is_filtered(struct thread *thread)
325{
326 if (symbol_conf.comm_list &&
327 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
328 return true;
329 }
330
331 if (symbol_conf.pid_list &&
332 !intlist__has_entry(symbol_conf.pid_list, thread__pid(thread))) {
333 return true;
334 }
335
336 if (symbol_conf.tid_list &&
337 !intlist__has_entry(symbol_conf.tid_list, thread__tid(thread))) {
338 return true;
339 }
340
341 return false;
342}
343
344void thread__free_stitch_list(struct thread *thread);
345
346void thread__resolve(struct thread *thread, struct addr_location *al,
347 struct perf_sample *sample);
348
349#endif /* __PERF_THREAD_H */