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 <stdio.h>
   9 #include <unistd.h>
  10 #include <sys/types.h>
  11 #include "srccode.h"
  12 #include "symbol_conf.h"
  13 #include <strlist.h>
  14 #include <intlist.h>
  15 #include "rwsem.h"
  16
  17 struct addr_location;
  18 struct map;
  19 struct perf_record_namespaces;
  20 struct thread_stack;
  21 struct unwind_libunwind_ops;
  22
  23 struct thread {
  24         union {
  25                 struct rb_node   rb_node;
  26                 struct list_head node;
  27         };
  28         struct maps             *maps;
  29         pid_t                   pid_; /* Not all tools update this */
  30         pid_t                   tid;
  31         pid_t                   ppid;
  32         int                     cpu;
  33         refcount_t              refcnt;
  34         bool                    comm_set;
  35         int                     comm_len;
  36         bool                    dead; /* if set thread has exited */
  37         struct list_head        namespaces_list;
  38         struct rw_semaphore     namespaces_lock;
  39         struct list_head        comm_list;
  40         struct rw_semaphore     comm_lock;
  41         u64                     db_id;
  42
  43         void                    *priv;
  44         struct thread_stack     *ts;
  45         struct nsinfo           *nsinfo;
  46         struct srccode_state    srccode_state;
  47         bool                    filter;
  48         int                     filter_entry_depth;
  49 };
  50
  51 struct machine;
  52 struct namespaces;
  53 struct comm;
  54
  55 struct thread *thread__new(pid_t pid, pid_t tid);
  56 int thread__init_maps(struct thread *thread, struct machine *machine);
  57 void thread__delete(struct thread *thread);
  58
  59 struct thread *thread__get(struct thread *thread);
  60 void thread__put(struct thread *thread);
  61
  62 static inline void __thread__zput(struct thread **thread)
  63 {
  64         thread__put(*thread);
  65         *thread = NULL;
  66 }
  67
  68 #define thread__zput(thread) __thread__zput(&thread)
  69
  70 static inline void thread__exited(struct thread *thread)
  71 {
  72         thread->dead = true;
  73 }
  74
  75 struct namespaces *thread__namespaces(struct thread *thread);
  76 int thread__set_namespaces(struct thread *thread, u64 timestamp,
  77                            struct perf_record_namespaces *event);
  78
  79 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
  80                        bool exec);
  81 static inline int thread__set_comm(struct thread *thread, const char *comm,
  82                                    u64 timestamp)
  83 {
  84         return __thread__set_comm(thread, comm, timestamp, false);
  85 }
  86
  87 int thread__set_comm_from_proc(struct thread *thread);
  88
  89 int thread__comm_len(struct thread *thread);
  90 struct comm *thread__comm(const struct thread *thread);
  91 struct comm *thread__exec_comm(const struct thread *thread);
  92 const char *thread__comm_str(struct thread *thread);
  93 int thread__insert_map(struct thread *thread, struct map *map);
  94 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
  95 size_t thread__fprintf(struct thread *thread, FILE *fp);
  96
  97 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
  98
  99 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
 100                              struct addr_location *al);
 101 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
 102                                 struct addr_location *al);
 103
 104 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
 105                                    u64 addr, struct addr_location *al);
 106 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
 107                                       u64 addr, struct addr_location *al);
 108
 109 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
 110                                         struct addr_location *al);
 111
 112 int thread__memcpy(struct thread *thread, struct machine *machine,
 113                    void *buf, u64 ip, int len, bool *is64bit);
 114
 115 static inline void *thread__priv(struct thread *thread)
 116 {
 117         return thread->priv;
 118 }
 119
 120 static inline void thread__set_priv(struct thread *thread, void *p)
 121 {
 122         thread->priv = p;
 123 }
 124
 125 static inline bool thread__is_filtered(struct thread *thread)
 126 {
 127         if (symbol_conf.comm_list &&
 128             !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
 129                 return true;
 130         }
 131
 132         if (symbol_conf.pid_list &&
 133             !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
 134                 return true;
 135         }
 136
 137         if (symbol_conf.tid_list &&
 138             !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
 139                 return true;
 140         }
 141
 142         return false;
 143 }
 144
 145 #endif  /* __PERF_THREAD_H */