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/*
* data structures for handling mcount records
*
* Copyright (C) 2014-2018, LG Electronics, Namhyung Kim <namhyung.kim@lge.com>
*
* Released under the GPL v2.
*/
#ifndef UFTRACE_MCOUNT_H
#define UFTRACE_MCOUNT_H
#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include "utils/rbtree.h"
#define UFTRACE_DIR_NAME "uftrace.data"
#define MCOUNT_RSTACK_MAX OPT_RSTACK_DEFAULT
#define MCOUNT_DEFAULT_DEPTH OPT_DEPTH_DEFAULT
#define MCOUNT_NOTRACE_IDX 0x10000
#define MCOUNT_INVALID_DYNIDX 0xefefefef
enum mcount_rstack_flag {
MCOUNT_FL_SETJMP = (1U << 0),
MCOUNT_FL_LONGJMP = (1U << 1),
MCOUNT_FL_NORECORD = (1U << 2),
MCOUNT_FL_NOTRACE = (1U << 3),
MCOUNT_FL_FILTERED = (1U << 4),
MCOUNT_FL_VFORK = (1U << 5),
MCOUNT_FL_WRITTEN = (1U << 6),
MCOUNT_FL_DISABLED = (1U << 7),
MCOUNT_FL_RECOVER = (1U << 8),
MCOUNT_FL_RETVAL = (1U << 9),
MCOUNT_FL_TRACE = (1U << 10),
MCOUNT_FL_ARGUMENT = (1U << 11),
MCOUNT_FL_READ = (1U << 12),
MCOUNT_FL_CALLER = (1U << 13),
MCOUNT_FL_CYGPROF = (1U << 14),
};
struct plthook_data;
struct list_head;
struct mcount_ret_stack {
unsigned long *parent_loc;
unsigned long parent_ip;
unsigned long child_ip;
enum mcount_rstack_flag flags;
unsigned dyn_idx;
/* time in nsec (CLOCK_MONOTONIC) */
uint64_t start_time;
uint64_t end_time;
uint64_t filter_time;
unsigned filter_size;
unsigned short depth;
unsigned short filter_depth;
unsigned short filter_max_depth;
unsigned short nr_events;
unsigned short event_idx;
struct plthook_data *pd;
/* set arg_spec at function entry and use it at exit */
struct list_head *pargs;
};
void __monstartup(unsigned long low, unsigned long high);
void _mcleanup(void);
void mcount_restore(void);
void mcount_reset(void);
#define SHMEM_BUFFER_SIZE_KB 128
#define SHMEM_BUFFER_SIZE (SHMEM_BUFFER_SIZE_KB * KB)
enum shmem_buffer_flags {
SHMEM_FL_NEW = (1U << 0),
SHMEM_FL_WRITTEN = (1U << 1),
SHMEM_FL_RECORDING = (1U << 2),
};
struct mcount_shmem_buffer {
unsigned size;
unsigned flag;
unsigned unused[2];
char data[];
};
/* must be in sync with enum debug_domain (bits) */
#define DBG_DOMAIN_STR "TSDFfsKMpPERWw"
#endif /* UFTRACE_MCOUNT_H */
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