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
19 struct addr_location;
20 struct map;
21 struct perf_record_namespaces;
22 struct thread_stack;
23 struct unwind_libunwind_ops;
24
25 struct 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
32 struct 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 refcount_t refcnt;
43 bool comm_set;
44 int comm_len;
45 bool dead; /* if set thread has exited */
46 struct list_head namespaces_list;
47 struct rw_semaphore namespaces_lock;
48 struct list_head comm_list;
49 struct rw_semaphore comm_lock;
50 u64 db_id;
51
52 void *priv;
53 struct thread_stack *ts;
54 struct nsinfo *nsinfo;
55 struct srccode_state srccode_state;
56 bool filter;
57 int filter_entry_depth;
58
59 /* LBR call stack stitch */
60 bool lbr_stitch_enable;
61 struct lbr_stitch *lbr_stitch;
62 };
63
64 struct machine;
65 struct namespaces;
66 struct comm;
67
68 struct thread *thread__new(pid_t pid, pid_t tid);
69 int thread__init_maps(struct thread *thread, struct machine *machine);
70 void thread__delete(struct thread *thread);
71
72 struct thread *thread__get(struct thread *thread);
73 void thread__put(struct thread *thread);
74
__thread__zput(struct thread ** thread)75 static inline void __thread__zput(struct thread **thread)
76 {
77 thread__put(*thread);
78 *thread = NULL;
79 }
80
81 #define thread__zput(thread) __thread__zput(&thread)
82
thread__exited(struct thread * thread)83 static inline void thread__exited(struct thread *thread)
84 {
85 thread->dead = true;
86 }
87
88 struct namespaces *thread__namespaces(struct thread *thread);
89 int thread__set_namespaces(struct thread *thread, u64 timestamp,
90 struct perf_record_namespaces *event);
91
92 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
93 bool exec);
thread__set_comm(struct thread * thread,const char * comm,u64 timestamp)94 static inline int thread__set_comm(struct thread *thread, const char *comm,
95 u64 timestamp)
96 {
97 return __thread__set_comm(thread, comm, timestamp, false);
98 }
99
100 int thread__set_comm_from_proc(struct thread *thread);
101
102 int thread__comm_len(struct thread *thread);
103 struct comm *thread__comm(const struct thread *thread);
104 struct comm *thread__exec_comm(const struct thread *thread);
105 const char *thread__comm_str(struct thread *thread);
106 int thread__insert_map(struct thread *thread, struct map *map);
107 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
108 size_t thread__fprintf(struct thread *thread, FILE *fp);
109
110 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
111
112 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
113 struct addr_location *al);
114 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
115 struct addr_location *al);
116
117 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
118 u64 addr, struct addr_location *al);
119 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
120 u64 addr, struct addr_location *al);
121
122 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
123 struct addr_location *al);
124
125 int thread__memcpy(struct thread *thread, struct machine *machine,
126 void *buf, u64 ip, int len, bool *is64bit);
127
thread__priv(struct thread * thread)128 static inline void *thread__priv(struct thread *thread)
129 {
130 return thread->priv;
131 }
132
thread__set_priv(struct thread * thread,void * p)133 static inline void thread__set_priv(struct thread *thread, void *p)
134 {
135 thread->priv = p;
136 }
137
thread__is_filtered(struct thread * thread)138 static inline bool thread__is_filtered(struct thread *thread)
139 {
140 if (symbol_conf.comm_list &&
141 !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
142 return true;
143 }
144
145 if (symbol_conf.pid_list &&
146 !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
147 return true;
148 }
149
150 if (symbol_conf.tid_list &&
151 !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
152 return true;
153 }
154
155 return false;
156 }
157
158 void thread__free_stitch_list(struct thread *thread);
159
160 #endif /* __PERF_THREAD_H */
161