xref: /openbmc/linux/tools/perf/util/thread.h (revision a8da474e)
1 #ifndef __PERF_THREAD_H
2 #define __PERF_THREAD_H
3 
4 #include <linux/atomic.h>
5 #include <linux/rbtree.h>
6 #include <linux/list.h>
7 #include <unistd.h>
8 #include <sys/types.h>
9 #include "symbol.h"
10 #include <strlist.h>
11 #include <intlist.h>
12 
13 struct thread_stack;
14 
15 struct thread {
16 	union {
17 		struct rb_node	 rb_node;
18 		struct list_head node;
19 	};
20 	struct map_groups	*mg;
21 	pid_t			pid_; /* Not all tools update this */
22 	pid_t			tid;
23 	pid_t			ppid;
24 	int			cpu;
25 	atomic_t		refcnt;
26 	char			shortname[3];
27 	bool			comm_set;
28 	int			comm_len;
29 	bool			dead; /* if set thread has exited */
30 	struct list_head	comm_list;
31 	u64			db_id;
32 
33 	void			*priv;
34 	struct thread_stack	*ts;
35 };
36 
37 struct machine;
38 struct comm;
39 
40 struct thread *thread__new(pid_t pid, pid_t tid);
41 int thread__init_map_groups(struct thread *thread, struct machine *machine);
42 void thread__delete(struct thread *thread);
43 
44 struct thread *thread__get(struct thread *thread);
45 void thread__put(struct thread *thread);
46 
47 static inline void __thread__zput(struct thread **thread)
48 {
49 	thread__put(*thread);
50 	*thread = NULL;
51 }
52 
53 #define thread__zput(thread) __thread__zput(&thread)
54 
55 static inline void thread__exited(struct thread *thread)
56 {
57 	thread->dead = true;
58 }
59 
60 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
61 		       bool exec);
62 static inline int thread__set_comm(struct thread *thread, const char *comm,
63 				   u64 timestamp)
64 {
65 	return __thread__set_comm(thread, comm, timestamp, false);
66 }
67 
68 int thread__comm_len(struct thread *thread);
69 struct comm *thread__comm(const struct thread *thread);
70 struct comm *thread__exec_comm(const struct thread *thread);
71 const char *thread__comm_str(const struct thread *thread);
72 void thread__insert_map(struct thread *thread, struct map *map);
73 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
74 size_t thread__fprintf(struct thread *thread, FILE *fp);
75 
76 void thread__find_addr_map(struct thread *thread,
77 			   u8 cpumode, enum map_type type, u64 addr,
78 			   struct addr_location *al);
79 
80 void thread__find_addr_location(struct thread *thread,
81 				u8 cpumode, enum map_type type, u64 addr,
82 				struct addr_location *al);
83 
84 void thread__find_cpumode_addr_location(struct thread *thread,
85 					enum map_type type, u64 addr,
86 					struct addr_location *al);
87 
88 static inline void *thread__priv(struct thread *thread)
89 {
90 	return thread->priv;
91 }
92 
93 static inline void thread__set_priv(struct thread *thread, void *p)
94 {
95 	thread->priv = p;
96 }
97 
98 static inline bool thread__is_filtered(struct thread *thread)
99 {
100 	if (symbol_conf.comm_list &&
101 	    !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
102 		return true;
103 	}
104 
105 	if (symbol_conf.pid_list &&
106 	    !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
107 		return true;
108 	}
109 
110 	if (symbol_conf.tid_list &&
111 	    !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
112 		return true;
113 	}
114 
115 	return false;
116 }
117 
118 #endif	/* __PERF_THREAD_H */
119