Linux kernel mirror (for testing)
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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
95struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
96 struct addr_location *al);
97
98struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
99 u64 addr, struct addr_location *al);
100
101void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
102 struct addr_location *al);
103
104static inline void *thread__priv(struct thread *thread)
105{
106 return thread->priv;
107}
108
109static inline void thread__set_priv(struct thread *thread, void *p)
110{
111 thread->priv = p;
112}
113
114static inline bool thread__is_filtered(struct thread *thread)
115{
116 if (symbol_conf.comm_list &&
117 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
118 return true;
119 }
120
121 if (symbol_conf.pid_list &&
122 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
123 return true;
124 }
125
126 if (symbol_conf.tid_list &&
127 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
128 return true;
129 }
130
131 return false;
132}
133
134#endif /* __PERF_THREAD_H */