xref: /openbmc/linux/tools/perf/util/thread.h (revision 82003e04)
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 struct unwind_libunwind_ops;
15 
16 struct thread {
17 	union {
18 		struct rb_node	 rb_node;
19 		struct list_head node;
20 	};
21 	struct map_groups	*mg;
22 	pid_t			pid_; /* Not all tools update this */
23 	pid_t			tid;
24 	pid_t			ppid;
25 	int			cpu;
26 	atomic_t		refcnt;
27 	char			shortname[3];
28 	bool			comm_set;
29 	int			comm_len;
30 	bool			dead; /* if set thread has exited */
31 	struct list_head	comm_list;
32 	u64			db_id;
33 
34 	void			*priv;
35 	struct thread_stack	*ts;
36 #ifdef HAVE_LIBUNWIND_SUPPORT
37 	void				*addr_space;
38 	struct unwind_libunwind_ops	*unwind_libunwind_ops;
39 #endif
40 };
41 
42 struct machine;
43 struct comm;
44 
45 struct thread *thread__new(pid_t pid, pid_t tid);
46 int thread__init_map_groups(struct thread *thread, struct machine *machine);
47 void thread__delete(struct thread *thread);
48 
49 struct thread *thread__get(struct thread *thread);
50 void thread__put(struct thread *thread);
51 
52 static inline void __thread__zput(struct thread **thread)
53 {
54 	thread__put(*thread);
55 	*thread = NULL;
56 }
57 
58 #define thread__zput(thread) __thread__zput(&thread)
59 
60 static inline void thread__exited(struct thread *thread)
61 {
62 	thread->dead = true;
63 }
64 
65 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
66 		       bool exec);
67 static inline int thread__set_comm(struct thread *thread, const char *comm,
68 				   u64 timestamp)
69 {
70 	return __thread__set_comm(thread, comm, timestamp, false);
71 }
72 
73 int thread__set_comm_from_proc(struct thread *thread);
74 
75 int thread__comm_len(struct thread *thread);
76 struct comm *thread__comm(const struct thread *thread);
77 struct comm *thread__exec_comm(const struct thread *thread);
78 const char *thread__comm_str(const struct thread *thread);
79 int thread__insert_map(struct thread *thread, struct map *map);
80 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
81 size_t thread__fprintf(struct thread *thread, FILE *fp);
82 
83 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
84 
85 void thread__find_addr_map(struct thread *thread,
86 			   u8 cpumode, enum map_type type, u64 addr,
87 			   struct addr_location *al);
88 
89 void thread__find_addr_location(struct thread *thread,
90 				u8 cpumode, enum map_type type, u64 addr,
91 				struct addr_location *al);
92 
93 void thread__find_cpumode_addr_location(struct thread *thread,
94 					enum map_type type, u64 addr,
95 					struct addr_location *al);
96 
97 static inline void *thread__priv(struct thread *thread)
98 {
99 	return thread->priv;
100 }
101 
102 static inline void thread__set_priv(struct thread *thread, void *p)
103 {
104 	thread->priv = p;
105 }
106 
107 static inline bool thread__is_filtered(struct thread *thread)
108 {
109 	if (symbol_conf.comm_list &&
110 	    !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
111 		return true;
112 	}
113 
114 	if (symbol_conf.pid_list &&
115 	    !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
116 		return true;
117 	}
118 
119 	if (symbol_conf.tid_list &&
120 	    !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
121 		return true;
122 	}
123 
124 	return false;
125 }
126 
127 #endif	/* __PERF_THREAD_H */
128