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