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 <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
  17struct addr_location;
  18struct map;
  19struct perf_record_namespaces;
  20struct thread_stack;
  21struct unwind_libunwind_ops;
  22
  23struct 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
  51struct machine;
  52struct namespaces;
  53struct comm;
  54
  55struct thread *thread__new(pid_t pid, pid_t tid);
  56int thread__init_maps(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(struct thread *thread);
  76int thread__set_namespaces(struct thread *thread, u64 timestamp,
  77                           struct perf_record_namespaces *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(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
 112int thread__memcpy(struct thread *thread, struct machine *machine,
 113                   void *buf, u64 ip, int len, bool *is64bit);
 114
 115static inline void *thread__priv(struct thread *thread)
 116{
 117        return thread->priv;
 118}
 119
 120static inline void thread__set_priv(struct thread *thread, void *p)
 121{
 122        thread->priv = p;
 123}
 124
 125static 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 */
 146