#ifndef _LINUX_LINKAGE_H
  #define _LINUX_LINKAGE_H

  #include <linux/compiler.h>

  #include <linux/stringify.h>

  #include <linux/export.h>

  #include <asm/linkage.h>

  /* Some toolchains use other characters (e.g. '`') to mark new line in macro */
  #ifndef ASM_NL
  #define ASM_NL		 ;
  #endif

  #ifdef __cplusplus

  #define CPP_ASMLINKAGE extern "C"

  #else

  #define CPP_ASMLINKAGE

  #endif
  
  #ifndef asmlinkage
  #define asmlinkage CPP_ASMLINKAGE
  #endif

  #ifndef cond_syscall

  #define cond_syscall(x)	asm(				\
  	".weak " VMLINUX_SYMBOL_STR(x) "
  \t"		\
  	".set  " VMLINUX_SYMBOL_STR(x) ","		\
  		 VMLINUX_SYMBOL_STR(sys_ni_syscall))

  #endif
  
  #ifndef SYSCALL_ALIAS

  #define SYSCALL_ALIAS(alias, name) asm(			\
  	".globl " VMLINUX_SYMBOL_STR(alias) "
  \t"	\
  	".set   " VMLINUX_SYMBOL_STR(alias) ","		\
  		  VMLINUX_SYMBOL_STR(name))

  #endif

  #define __page_aligned_data	__section(.data..page_aligned) __aligned(PAGE_SIZE)

  #define __page_aligned_bss	__section(.bss..page_aligned) __aligned(PAGE_SIZE)

  /*

   * For assembly routines.
   *
   * Note when using these that you must specify the appropriate
   * alignment directives yourself
   */

  #define __PAGE_ALIGNED_DATA	.section ".data..page_aligned", "aw"

  #define __PAGE_ALIGNED_BSS	.section ".bss..page_aligned", "aw"

  
  /*

   * This is used by architectures to keep arguments on the stack
   * untouched by the compiler by keeping them live until the end.
   * The argument stack may be owned by the assembly-language
   * caller, not the callee, and gcc doesn't always understand
   * that.
   *
   * We have the return value, and a maximum of six arguments.
   *
   * This should always be followed by a "return ret" for the
   * protection to work (ie no more work that the compiler might
   * end up needing stack temporaries for).
   */

  /* Assembly files may be compiled with -traditional .. */
  #ifndef __ASSEMBLY__

  #ifndef asmlinkage_protect
  # define asmlinkage_protect(n, ret, args...)	do { } while (0)

  #endif

  #endif

  
  #ifndef __ALIGN
  #define __ALIGN		.align 4,0x90
  #define __ALIGN_STR	".align 4,0x90"
  #endif
  
  #ifdef __ASSEMBLY__

  #ifndef LINKER_SCRIPT

  #define ALIGN __ALIGN
  #define ALIGN_STR __ALIGN_STR

  #ifndef ENTRY

  #define ENTRY(name) \

  	.globl name ASM_NL \
  	ALIGN ASM_NL \
  	name:

  #endif

  #endif /* LINKER_SCRIPT */

  #ifndef WEAK
  #define WEAK(name)	   \

  	.weak name ASM_NL   \

  	name:
  #endif

  #ifndef END
  #define END(name) \

  	.size name, .-name

  #endif

  /* If symbol 'name' is treated as a subroutine (gets called, and returns)
   * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
   * static analysis tools such as stack depth analyzer.
   */

  #ifndef ENDPROC
  #define ENDPROC(name) \

  	.type name, @function ASM_NL \
  	END(name)

  #endif

  #endif

  #endif