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 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
65 struct machine;
66 struct namespaces;
67 struct comm;
68
69 struct thread *thread__new(pid_t pid, pid_t tid);
70 int thread__init_maps(struct thread *thread, struct machine *machine);
71 void thread__delete(struct thread *thread);
72
73 struct thread *thread__get(struct thread *thread);
74 void thread__put(struct thread *thread);
75
__thread__zput(struct thread ** thread)76 static 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
thread__exited(struct thread * thread)84 static inline void thread__exited(struct thread *thread)
85 {
86 thread->dead = true;
87 }
88
89 struct namespaces *thread__namespaces(struct thread *thread);
90 int thread__set_namespaces(struct thread *thread, u64 timestamp,
91 struct perf_record_namespaces *event);
92
93 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
94 bool exec);
thread__set_comm(struct thread * thread,const char * comm,u64 timestamp)95 static 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
101 int thread__set_comm_from_proc(struct thread *thread);
102
103 int thread__comm_len(struct thread *thread);
104 struct comm *thread__comm(const struct thread *thread);
105 struct comm *thread__exec_comm(const struct thread *thread);
106 const char *thread__comm_str(struct thread *thread);
107 int thread__insert_map(struct thread *thread, struct map *map);
108 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
109 size_t thread__fprintf(struct thread *thread, FILE *fp);
110
111 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
112
113 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
114 struct addr_location *al);
115 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
116 struct addr_location *al);
117
118 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
119 u64 addr, struct addr_location *al);
120 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
121 u64 addr, struct addr_location *al);
122
123 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
124 struct addr_location *al);
125
126 int thread__memcpy(struct thread *thread, struct machine *machine,
127 void *buf, u64 ip, int len, bool *is64bit);
128
thread__priv(struct thread * thread)129 static inline void *thread__priv(struct thread *thread)
130 {
131 return thread->priv;
132 }
133
thread__set_priv(struct thread * thread,void * p)134 static inline void thread__set_priv(struct thread *thread, void *p)
135 {
136 thread->priv = p;
137 }
138
thread__is_filtered(struct thread * thread)139 static 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
159 void thread__free_stitch_list(struct thread *thread);
160
161 #endif /* __PERF_THREAD_H */
162