/*

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#define CONFIG_64BIT 1

#define NULL ((void *)0)

typedef unsigned long size_t;

typedef unsigned char u8;

typedef signed short s16;

typedef unsigned short u16;

typedef signed int s32;

typedef unsigned int u32;

typedef unsigned long long u64;

struct pt_regs {

        unsigned long r15;

        unsigned long r14;

        unsigned long r13;

        unsigned long r12;

        unsigned long rbp;

        unsigned long rbx;

/* arguments: non interrupts/non tracing syscalls only save upto here*/

        unsigned long r11;

        unsigned long r10;

        unsigned long r9;

        unsigned long r8;

        unsigned long rax;

        unsigned long rcx;

        unsigned long rdx;

        unsigned long rsi;

        unsigned long rdi;

        unsigned long orig_rax;

/* end of arguments */

/* cpu exception frame or undefined */

        unsigned long rip;

        unsigned long cs;

        unsigned long eflags;

        unsigned long rsp;

        unsigned long ss;

/* top of stack page */

};

struct unwind_frame_info

{

        struct pt_regs regs;

};

extern int unwind(struct unwind_frame_info *, int);

extern void init_unwind_table(void);

extern void free_unwind_table(void);

#ifndef offsetof

#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)

#endif

#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))

#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))

#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))

#define get_unaligned(ptr) (*(ptr))

//#define __get_user(x,ptr)  __get_user_nocheck((x),(ptr),sizeof(*(ptr)))

#define THREAD_ORDER 1

#define THREAD_SIZE  (PAGE_SIZE << THREAD_ORDER)

#define UNW_PC(frame)        (frame)->regs.rip

#define UNW_SP(frame)        (frame)->regs.rsp

#ifdef CONFIG_FRAME_POINTER

	#define UNW_FP(frame)        (frame)->regs.rbp

	#define FRAME_RETADDR_OFFSET 8

	#define FRAME_LINK_OFFSET    0

	#define STACK_BOTTOM(tsk)    (((tsk)->thread.rsp0 - 1) & ~(THREAD_SIZE - 1))

	#define STACK_TOP(tsk)       ((tsk)->thread.rsp0)

#endif

#define EXTRA_INFO(f) { BUILD_BUG_ON_ZERO(offsetof(struct unwind_frame_info, f) % FIELD_SIZEOF(struct unwind_frame_info, f)) + offsetof(struct unwind_frame_info, f)/ FIELD_SIZEOF(struct unwind_frame_info, f), FIELD_SIZEOF(struct unwind_frame_info, f) }

#define PTREGS_INFO(f) EXTRA_INFO(regs.f)

#define UNW_REGISTER_INFO \

	PTREGS_INFO(rax),\

	PTREGS_INFO(rdx),\

	PTREGS_INFO(rcx),\

	PTREGS_INFO(rbx), \

	PTREGS_INFO(rsi), \

	PTREGS_INFO(rdi), \

	PTREGS_INFO(rbp), \

	PTREGS_INFO(rsp), \

	PTREGS_INFO(r8), \

	PTREGS_INFO(r9), \

	PTREGS_INFO(r10),\

	PTREGS_INFO(r11), \

	PTREGS_INFO(r12), \

	PTREGS_INFO(r13), \

	PTREGS_INFO(r14), \

	PTREGS_INFO(r15), \

	PTREGS_INFO(rip)