tools/perf/util/thread.h

   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 <unistd.h>
   9 #include <sys/types.h>
  10 #include "symbol.h"
  11 #include <strlist.h>
  12 #include <intlist.h>
  13
  14 struct thread_stack;
  15 struct unwind_libunwind_ops;
  16
  17 struct thread {
  18         union {
  19                 struct rb_node   rb_node;
  20                 struct list_head node;
  21         };
  22         struct map_groups       *mg;
  23         pid_t                   pid_; /* Not all tools update this */
  24         pid_t                   tid;
  25         pid_t                   ppid;
  26         int                     cpu;
  27         refcount_t              refcnt;
  28         char                    shortname[3];
  29         bool                    comm_set;
  30         int                     comm_len;
  31         bool                    dead; /* if set thread has exited */
  32         struct list_head        namespaces_list;
  33         struct list_head        comm_list;
  34         u64                     db_id;
  35
  36         void                    *priv;
  37         struct thread_stack     *ts;
  38         struct nsinfo           *nsinfo;
  39 #ifdef HAVE_LIBUNWIND_SUPPORT
  40         void                            *addr_space;
  41         struct unwind_libunwind_ops     *unwind_libunwind_ops;
  42 #endif
  43 };
  44
  45 struct machine;
  46 struct namespaces;
  47 struct comm;
  48
  49 struct thread *thread__new(pid_t pid, pid_t tid);
  50 int thread__init_map_groups(struct thread *thread, struct machine *machine);
  51 void thread__delete(struct thread *thread);
  52
  53 struct thread *thread__get(struct thread *thread);
  54 void thread__put(struct thread *thread);
  55
  56 static inline void __thread__zput(struct thread **thread)
  57 {
  58         thread__put(*thread);
  59         *thread = NULL;
  60 }
  61
  62 #define thread__zput(thread) __thread__zput(&thread)
  63
  64 static inline void thread__exited(struct thread *thread)
  65 {
  66         thread->dead = true;
  67 }
  68
  69 struct namespaces *thread__namespaces(const struct thread *thread);
  70 int thread__set_namespaces(struct thread *thread, u64 timestamp,
  71                            struct namespaces_event *event);
  72
  73 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
  74                        bool exec);
  75 static inline int thread__set_comm(struct thread *thread, const char *comm,
  76                                    u64 timestamp)
  77 {
  78         return __thread__set_comm(thread, comm, timestamp, false);
  79 }
  80
  81 int thread__set_comm_from_proc(struct thread *thread);
  82
  83 int thread__comm_len(struct thread *thread);
  84 struct comm *thread__comm(const struct thread *thread);
  85 struct comm *thread__exec_comm(const struct thread *thread);
  86 const char *thread__comm_str(const struct thread *thread);
  87 int thread__insert_map(struct thread *thread, struct map *map);
  88 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
  89 size_t thread__fprintf(struct thread *thread, FILE *fp);
  90
  91 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
  92
  93 void thread__find_addr_map(struct thread *thread,
  94                            u8 cpumode, enum map_type type, u64 addr,
  95                            struct addr_location *al);
  96
  97 void thread__find_addr_location(struct thread *thread,
  98                                 u8 cpumode, enum map_type type, u64 addr,
  99                                 struct addr_location *al);
 100
 101 void thread__find_cpumode_addr_location(struct thread *thread,
 102                                         enum map_type type, u64 addr,
 103                                         struct addr_location *al);
 104
 105 static inline void *thread__priv(struct thread *thread)
 106 {
 107         return thread->priv;
 108 }
 109
 110 static inline void thread__set_priv(struct thread *thread, void *p)
 111 {
 112         thread->priv = p;
 113 }
 114
 115 static inline bool thread__is_filtered(struct thread *thread)
 116 {
 117         if (symbol_conf.comm_list &&
 118             !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
 119                 return true;
 120         }
 121
 122         if (symbol_conf.pid_list &&
 123             !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
 124                 return true;
 125         }
 126
 127         if (symbol_conf.tid_list &&
 128             !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
 129                 return true;
 130         }
 131
 132         return false;
 133 }
 134
 135 #endif  /* __PERF_THREAD_H */