tools/perf/util/thread.h

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