xref: /openbmc/linux/tools/perf/util/thread.h (revision 3ca9760fdfa411f7e5db54b3437fbb858d2ec825)
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