112 строки
3.5 KiB
C
112 строки
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* thread-stack.h: Synthesize a thread's stack using call / return events
|
|
* Copyright (c) 2014, Intel Corporation.
|
|
*/
|
|
|
|
#ifndef __PERF_THREAD_STACK_H
|
|
#define __PERF_THREAD_STACK_H
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct thread;
|
|
struct comm;
|
|
struct ip_callchain;
|
|
struct symbol;
|
|
struct dso;
|
|
struct comm;
|
|
struct perf_sample;
|
|
struct addr_location;
|
|
struct call_path;
|
|
|
|
/*
|
|
* Call/Return flags.
|
|
*
|
|
* CALL_RETURN_NO_CALL: 'return' but no matching 'call'
|
|
* CALL_RETURN_NO_RETURN: 'call' but no matching 'return'
|
|
* CALL_RETURN_NON_CALL: a branch but not a 'call' to the start of a different
|
|
* symbol
|
|
*/
|
|
enum {
|
|
CALL_RETURN_NO_CALL = 1 << 0,
|
|
CALL_RETURN_NO_RETURN = 1 << 1,
|
|
CALL_RETURN_NON_CALL = 1 << 2,
|
|
};
|
|
|
|
/**
|
|
* struct call_return - paired call/return information.
|
|
* @thread: thread in which call/return occurred
|
|
* @comm: comm in which call/return occurred
|
|
* @cp: call path
|
|
* @call_time: timestamp of call (if known)
|
|
* @return_time: timestamp of return (if known)
|
|
* @branch_count: number of branches seen between call and return
|
|
* @insn_count: approx. number of instructions between call and return
|
|
* @cyc_count: approx. number of cycles between call and return
|
|
* @call_ref: external reference to 'call' sample (e.g. db_id)
|
|
* @return_ref: external reference to 'return' sample (e.g. db_id)
|
|
* @db_id: id used for db-export
|
|
* @parent_db_id: id of parent call used for db-export
|
|
* @flags: Call/Return flags
|
|
*/
|
|
struct call_return {
|
|
struct thread *thread;
|
|
struct comm *comm;
|
|
struct call_path *cp;
|
|
u64 call_time;
|
|
u64 return_time;
|
|
u64 branch_count;
|
|
u64 insn_count;
|
|
u64 cyc_count;
|
|
u64 call_ref;
|
|
u64 return_ref;
|
|
u64 db_id;
|
|
u64 parent_db_id;
|
|
u32 flags;
|
|
};
|
|
|
|
/**
|
|
* struct call_return_processor - provides a call-back to consume call-return
|
|
* information.
|
|
* @cpr: call path root
|
|
* @process: call-back that accepts call/return information
|
|
* @data: anonymous data for call-back
|
|
*/
|
|
struct call_return_processor {
|
|
struct call_path_root *cpr;
|
|
int (*process)(struct call_return *cr, u64 *parent_db_id, void *data);
|
|
void *data;
|
|
};
|
|
|
|
int thread_stack__event(struct thread *thread, int cpu, u32 flags, u64 from_ip,
|
|
u64 to_ip, u16 insn_len, u64 trace_nr, bool callstack,
|
|
unsigned int br_stack_sz, bool mispred_all);
|
|
void thread_stack__set_trace_nr(struct thread *thread, int cpu, u64 trace_nr);
|
|
void thread_stack__sample(struct thread *thread, int cpu, struct ip_callchain *chain,
|
|
size_t sz, u64 ip, u64 kernel_start);
|
|
void thread_stack__sample_late(struct thread *thread, int cpu,
|
|
struct ip_callchain *chain, size_t sz, u64 ip,
|
|
u64 kernel_start);
|
|
void thread_stack__br_sample(struct thread *thread, int cpu,
|
|
struct branch_stack *dst, unsigned int sz);
|
|
void thread_stack__br_sample_late(struct thread *thread, int cpu,
|
|
struct branch_stack *dst, unsigned int sz,
|
|
u64 sample_ip, u64 kernel_start);
|
|
int thread_stack__flush(struct thread *thread);
|
|
void thread_stack__free(struct thread *thread);
|
|
size_t thread_stack__depth(struct thread *thread, int cpu);
|
|
|
|
struct call_return_processor *
|
|
call_return_processor__new(int (*process)(struct call_return *cr, u64 *parent_db_id, void *data),
|
|
void *data);
|
|
void call_return_processor__free(struct call_return_processor *crp);
|
|
int thread_stack__process(struct thread *thread, struct comm *comm,
|
|
struct perf_sample *sample,
|
|
struct addr_location *from_al,
|
|
struct addr_location *to_al, u64 ref,
|
|
struct call_return_processor *crp);
|
|
|
|
#endif
|