Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /tools/perf/util/thread.h 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_THREAD_H
#define __PERF_THREAD_H

#include <linux/refcount.h>
#include <linux/rbtree.h>
#include <linux/list.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include "srccode.h"
#include "symbol_conf.h"
#include <strlist.h>
#include <intlist.h>
#include "rwsem.h"

struct addr_location;
struct map;
struct perf_record_namespaces;
struct thread_stack;
struct unwind_libunwind_ops;

struct thread {
	union {
		struct rb_node	 rb_node;
		struct list_head node;
	};
	struct map_groups	*mg;
	pid_t			pid_; /* Not all tools update this */
	pid_t			tid;
	pid_t			ppid;
	int			cpu;
	refcount_t		refcnt;
	bool			comm_set;
	int			comm_len;
	bool			dead; /* if set thread has exited */
	struct list_head	namespaces_list;
	struct rw_semaphore	namespaces_lock;
	struct list_head	comm_list;
	struct rw_semaphore	comm_lock;
	u64			db_id;

	void			*priv;
	struct thread_stack	*ts;
	struct nsinfo		*nsinfo;
	struct srccode_state	srccode_state;
	bool			filter;
	int			filter_entry_depth;
};

struct machine;
struct namespaces;
struct comm;

struct thread *thread__new(pid_t pid, pid_t tid);
int thread__init_map_groups(struct thread *thread, struct machine *machine);
void thread__delete(struct thread *thread);

struct thread *thread__get(struct thread *thread);
void thread__put(struct thread *thread);

static inline void __thread__zput(struct thread **thread)
{
	thread__put(*thread);
	*thread = NULL;
}

#define thread__zput(thread) __thread__zput(&thread)

static inline void thread__exited(struct thread *thread)
{
	thread->dead = true;
}

struct namespaces *thread__namespaces(struct thread *thread);
int thread__set_namespaces(struct thread *thread, u64 timestamp,
			   struct perf_record_namespaces *event);

int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
		       bool exec);
static inline int thread__set_comm(struct thread *thread, const char *comm,
				   u64 timestamp)
{
	return __thread__set_comm(thread, comm, timestamp, false);
}

int thread__set_comm_from_proc(struct thread *thread);

int thread__comm_len(struct thread *thread);
struct comm *thread__comm(const struct thread *thread);
struct comm *thread__exec_comm(const struct thread *thread);
const char *thread__comm_str(struct thread *thread);
int thread__insert_map(struct thread *thread, struct map *map);
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone);
size_t thread__fprintf(struct thread *thread, FILE *fp);

struct thread *thread__main_thread(struct machine *machine, struct thread *thread);

struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
			     struct addr_location *al);
struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
				struct addr_location *al);

struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
				   u64 addr, struct addr_location *al);
struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
				      u64 addr, struct addr_location *al);

void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
					struct addr_location *al);

int thread__memcpy(struct thread *thread, struct machine *machine,
		   void *buf, u64 ip, int len, bool *is64bit);

static inline void *thread__priv(struct thread *thread)
{
	return thread->priv;
}

static inline void thread__set_priv(struct thread *thread, void *p)
{
	thread->priv = p;
}

static inline bool thread__is_filtered(struct thread *thread)
{
	if (symbol_conf.comm_list &&
	    !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
		return true;
	}

	if (symbol_conf.pid_list &&
	    !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
		return true;
	}

	if (symbol_conf.tid_list &&
	    !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
		return true;
	}

	return false;
}

#endif	/* __PERF_THREAD_H */