Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 <stdio.h>
9#include <unistd.h>
10#include <sys/types.h>
11#include "srccode.h"
12#include "symbol_conf.h"
13#include <strlist.h>
14#include <intlist.h>
15#include "rwsem.h"
16#include "event.h"
17#include "callchain.h"
18
19struct addr_location;
20struct map;
21struct perf_record_namespaces;
22struct thread_stack;
23struct unwind_libunwind_ops;
24
25struct lbr_stitch {
26 struct list_head lists;
27 struct list_head free_lists;
28 struct perf_sample prev_sample;
29 struct callchain_cursor_node *prev_lbr_cursor;
30};
31
32struct thread {
33 union {
34 struct rb_node rb_node;
35 struct list_head node;
36 };
37 struct maps *maps;
38 pid_t pid_; /* Not all tools update this */
39 pid_t tid;
40 pid_t ppid;
41 int cpu;
42 int guest_cpu; /* For QEMU thread */
43 refcount_t refcnt;
44 bool comm_set;
45 int comm_len;
46 bool dead; /* if set thread has exited */
47 struct list_head namespaces_list;
48 struct rw_semaphore namespaces_lock;
49 struct list_head comm_list;
50 struct rw_semaphore comm_lock;
51 u64 db_id;
52
53 void *priv;
54 struct thread_stack *ts;
55 struct nsinfo *nsinfo;
56 struct srccode_state srccode_state;
57 bool filter;
58 int filter_entry_depth;
59
60 /* LBR call stack stitch */
61 bool lbr_stitch_enable;
62 struct lbr_stitch *lbr_stitch;
63};
64
65struct machine;
66struct namespaces;
67struct comm;
68
69struct thread *thread__new(pid_t pid, pid_t tid);
70int thread__init_maps(struct thread *thread, struct machine *machine);
71void thread__delete(struct thread *thread);
72
73struct thread *thread__get(struct thread *thread);
74void thread__put(struct thread *thread);
75
76static inline void __thread__zput(struct thread **thread)
77{
78 thread__put(*thread);
79 *thread = NULL;
80}
81
82#define thread__zput(thread) __thread__zput(&thread)
83
84static inline void thread__exited(struct thread *thread)
85{
86 thread->dead = true;
87}
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(const struct thread *thread);
105struct comm *thread__exec_comm(const 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 void *thread__priv(struct thread *thread)
130{
131 return thread->priv;
132}
133
134static inline void thread__set_priv(struct thread *thread, void *p)
135{
136 thread->priv = p;
137}
138
139static inline bool thread__is_filtered(struct thread *thread)
140{
141 if (symbol_conf.comm_list &&
142 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
143 return true;
144 }
145
146 if (symbol_conf.pid_list &&
147 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
148 return true;
149 }
150
151 if (symbol_conf.tid_list &&
152 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
153 return true;
154 }
155
156 return false;
157}
158
159void thread__free_stitch_list(struct thread *thread);
160
161void thread__resolve(struct thread *thread, struct addr_location *al,
162 struct perf_sample *sample);
163
164#endif /* __PERF_THREAD_H */