summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/thread.h
blob: 8b4a3c69bad19c269197d10dc3e9e4991033e478 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_THREAD_H
#define __PERF_THREAD_H

#include <linux/refcount.h>
#include <linux/list.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include "srccode.h"
#include "symbol_conf.h"
#include <strlist.h>
#include <intlist.h>
#include "rwsem.h"
#include "callchain.h"
#include <internal/rc_check.h>

struct addr_location;
struct map;
struct perf_record_namespaces;
struct thread_stack;
struct unwind_libunwind_ops;

struct lbr_stitch {
	struct list_head		lists;
	struct list_head		free_lists;
	struct perf_sample		prev_sample;
	struct callchain_cursor_node	*prev_lbr_cursor;
};

DECLARE_RC_STRUCT(thread) {
	/** @maps: mmaps associated with this thread. */
	struct maps		*maps;
	pid_t			pid_; /* Not all tools update this */
	/** @tid: thread ID number unique to a machine. */
	pid_t			tid;
	/** @ppid: parent process of the process this thread belongs to. */
	pid_t			ppid;
	int			cpu;
	int			guest_cpu; /* For QEMU thread */
	refcount_t		refcnt;
	/**
	 * @exited: Has the thread had an exit event. Such threads are usually
	 * removed from the machine's threads but some events/tools require
	 * access to dead threads.
	 */
	bool			exited;
	bool			comm_set;
	int			comm_len;
	struct list_head	namespaces_list;
	struct rw_semaphore	namespaces_lock;
	struct list_head	comm_list;
	struct rw_semaphore	comm_lock;
	u64			db_id;

	void			*priv;
	struct thread_stack	*ts;
	struct nsinfo		*nsinfo;
	struct srccode_state	srccode_state;
	bool			filter;
	int			filter_entry_depth;

	/* LBR call stack stitch */
	bool			lbr_stitch_enable;
	struct lbr_stitch	*lbr_stitch;
};

struct machine;
struct namespaces;
struct comm;

struct thread *thread__new(pid_t pid, pid_t tid);
int thread__init_maps(struct thread *thread, struct machine *machine);
void thread__delete(struct thread *thread);

void thread__set_priv_destructor(void (*destructor)(void *priv));

struct thread *thread__get(struct thread *thread);
void thread__put(struct thread *thread);

static inline void __thread__zput(struct thread **thread)
{
	thread__put(*thread);
	*thread = NULL;
}

#define thread__zput(thread) __thread__zput(&thread)

struct namespaces *thread__namespaces(struct thread *thread);
int thread__set_namespaces(struct thread *thread, u64 timestamp,
			   struct perf_record_namespaces *event);

int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
		       bool exec);
static inline int thread__set_comm(struct thread *thread, const char *comm,
				   u64 timestamp)
{
	return __thread__set_comm(thread, comm, timestamp, false);
}

int thread__set_comm_from_proc(struct thread *thread);

int thread__comm_len(struct thread *thread);
struct comm *thread__comm(struct thread *thread);
struct comm *thread__exec_comm(struct thread *thread);
const char *thread__comm_str(struct thread *thread);
int thread__insert_map(struct thread *thread, struct map *map);
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
size_t thread__fprintf(struct thread *thread, FILE *fp);

struct thread *thread__main_thread(struct machine *machine, struct thread *thread);

struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
			     struct addr_location *al);
struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
				struct addr_location *al);

struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
				   u64 addr, struct addr_location *al);
struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
				      u64 addr, struct addr_location *al);

void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
					struct addr_location *al);

int thread__memcpy(struct thread *thread, struct machine *machine,
		   void *buf, u64 ip, int len, bool *is64bit);

static inline struct maps *thread__maps(struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->maps;
}

static inline void thread__set_maps(struct thread *thread, struct maps *maps)
{
	RC_CHK_ACCESS(thread)->maps = maps;
}

static inline pid_t thread__pid(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->pid_;
}

static inline void thread__set_pid(struct thread *thread, pid_t pid_)
{
	RC_CHK_ACCESS(thread)->pid_ = pid_;
}

static inline pid_t thread__tid(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->tid;
}

static inline void thread__set_tid(struct thread *thread, pid_t tid)
{
	RC_CHK_ACCESS(thread)->tid = tid;
}

static inline pid_t thread__ppid(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->ppid;
}

static inline void thread__set_ppid(struct thread *thread, pid_t ppid)
{
	RC_CHK_ACCESS(thread)->ppid = ppid;
}

static inline int thread__cpu(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->cpu;
}

static inline void thread__set_cpu(struct thread *thread, int cpu)
{
	RC_CHK_ACCESS(thread)->cpu = cpu;
}

static inline int thread__guest_cpu(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->guest_cpu;
}

static inline void thread__set_guest_cpu(struct thread *thread, int guest_cpu)
{
	RC_CHK_ACCESS(thread)->guest_cpu = guest_cpu;
}

static inline refcount_t *thread__refcnt(struct thread *thread)
{
	return &RC_CHK_ACCESS(thread)->refcnt;
}

static inline void thread__set_exited(struct thread *thread, bool exited)
{
	RC_CHK_ACCESS(thread)->exited = exited;
}

static inline bool thread__comm_set(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->comm_set;
}

static inline void thread__set_comm_set(struct thread *thread, bool set)
{
	RC_CHK_ACCESS(thread)->comm_set = set;
}

static inline int thread__var_comm_len(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->comm_len;
}

static inline void thread__set_comm_len(struct thread *thread, int len)
{
	RC_CHK_ACCESS(thread)->comm_len = len;
}

static inline struct list_head *thread__namespaces_list(struct thread *thread)
{
	return &RC_CHK_ACCESS(thread)->namespaces_list;
}

static inline int thread__namespaces_list_empty(const struct thread *thread)
{
	return list_empty(&RC_CHK_ACCESS(thread)->namespaces_list);
}

static inline struct rw_semaphore *thread__namespaces_lock(struct thread *thread)
{
	return &RC_CHK_ACCESS(thread)->namespaces_lock;
}

static inline struct list_head *thread__comm_list(struct thread *thread)
{
	return &RC_CHK_ACCESS(thread)->comm_list;
}

static inline struct rw_semaphore *thread__comm_lock(struct thread *thread)
{
	return &RC_CHK_ACCESS(thread)->comm_lock;
}

static inline u64 thread__db_id(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->db_id;
}

static inline void thread__set_db_id(struct thread *thread, u64 db_id)
{
	RC_CHK_ACCESS(thread)->db_id = db_id;
}

static inline void *thread__priv(struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->priv;
}

static inline void thread__set_priv(struct thread *thread, void *p)
{
	RC_CHK_ACCESS(thread)->priv = p;
}

static inline struct thread_stack *thread__ts(struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->ts;
}

static inline void thread__set_ts(struct thread *thread, struct thread_stack *ts)
{
	RC_CHK_ACCESS(thread)->ts = ts;
}

static inline struct nsinfo *thread__nsinfo(struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->nsinfo;
}

static inline struct srccode_state *thread__srccode_state(struct thread *thread)
{
	return &RC_CHK_ACCESS(thread)->srccode_state;
}

static inline bool thread__filter(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->filter;
}

static inline void thread__set_filter(struct thread *thread, bool filter)
{
	RC_CHK_ACCESS(thread)->filter = filter;
}

static inline int thread__filter_entry_depth(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->filter_entry_depth;
}

static inline void thread__set_filter_entry_depth(struct thread *thread, int depth)
{
	RC_CHK_ACCESS(thread)->filter_entry_depth = depth;
}

static inline bool thread__lbr_stitch_enable(const struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->lbr_stitch_enable;
}

static inline void thread__set_lbr_stitch_enable(struct thread *thread, bool en)
{
	RC_CHK_ACCESS(thread)->lbr_stitch_enable = en;
}

static inline struct lbr_stitch	*thread__lbr_stitch(struct thread *thread)
{
	return RC_CHK_ACCESS(thread)->lbr_stitch;
}

static inline void thread__set_lbr_stitch(struct thread *thread, struct lbr_stitch *lbrs)
{
	RC_CHK_ACCESS(thread)->lbr_stitch = lbrs;
}

static inline bool thread__is_filtered(struct thread *thread)
{
	if (symbol_conf.comm_list &&
	    !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
		return true;
	}

	if (symbol_conf.pid_list &&
	    !intlist__has_entry(symbol_conf.pid_list, thread__pid(thread))) {
		return true;
	}

	if (symbol_conf.tid_list &&
	    !intlist__has_entry(symbol_conf.tid_list, thread__tid(thread))) {
		return true;
	}

	return false;
}

void thread__free_stitch_list(struct thread *thread);

void thread__resolve(struct thread *thread, struct addr_location *al,
		     struct perf_sample *sample);

#endif	/* __PERF_THREAD_H */