linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Common header file for probe-based Dynamic events.

 *

 * This code was copied from kernel/trace/trace_kprobe.h written by

 * Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>

 *

 * Updates to make this generic:

 * Copyright (C) IBM Corporation, 2010-2011

 * Author:     Srikar Dronamraju

 */

​

#include <linux/seq_file.h>

#include <linux/slab.h>

#include <linux/smp.h>

#include <linux/tracefs.h>

#include <linux/types.h>

#include <linux/string.h>

#include <linux/ctype.h>

#include <linux/ptrace.h>

#include <linux/perf_event.h>

#include <linux/kprobes.h>

#include <linux/stringify.h>

#include <linux/limits.h>

#include <linux/uaccess.h>

#include <linux/bitops.h>

#include <asm/bitsperlong.h>

​

#include "trace.h"

#include "trace_output.h"

​

#define MAX_TRACE_ARGS      128

#define MAX_ARGSTR_LEN      63

#define MAX_ARRAY_LEN       64

#define MAX_ARG_NAME_LEN    32

#define MAX_STRING_SIZE     PATH_MAX

​

/* Reserved field names */

#define FIELD_STRING_IP     "__probe_ip"

#define FIELD_STRING_RETIP  "__probe_ret_ip"

#define FIELD_STRING_FUNC   "__probe_func"

​

#undef DEFINE_FIELD

#define DEFINE_FIELD(type, item, name, is_signed)           \

    do {                                \

        ret = trace_define_field(event_call, #type, name,   \

                     offsetof(typeof(field), item), \

                     sizeof(field.item), is_signed, \

                     FILTER_OTHER);         \

        if (ret)                        \

            return ret;                 \

    } while (0)

​

​

/* Flags for trace_probe */

#define TP_FLAG_TRACE       1

#define TP_FLAG_PROFILE     2

#define TP_FLAG_REGISTERED  4

​

/* data_loc: data location, compatible with u32 */

#define make_data_loc(len, offs)    \

    (((u32)(len) << 16) | ((u32)(offs) & 0xffff))

#define get_loc_len(dl)     ((u32)(dl) >> 16)