#ifndef _ASM_X86_64_IA32_H
  #define _ASM_X86_64_IA32_H

  
  #ifdef CONFIG_IA32_EMULATION
  
  #include <linux/compat.h>
  
  /*
   * 32 bit structures for IA32 support.
   */
  
  #include <asm/sigcontext32.h>
  
  /* signal.h */
  struct sigaction32 {

  	unsigned int  sa_handler;	/* Really a pointer, but need to deal
  					   with 32 bits */
  	unsigned int sa_flags;
  	unsigned int sa_restorer;	/* Another 32 bit pointer */
  	compat_sigset_t sa_mask;	/* A 32 bit mask */

  };
  
  struct old_sigaction32 {

  	unsigned int  sa_handler;	/* Really a pointer, but need to deal
  					   with 32 bits */
  	compat_old_sigset_t sa_mask;	/* A 32 bit mask */
  	unsigned int sa_flags;
  	unsigned int sa_restorer;	/* Another 32 bit pointer */

  };
  
  typedef struct sigaltstack_ia32 {
  	unsigned int	ss_sp;
  	int		ss_flags;
  	unsigned int	ss_size;
  } stack_ia32_t;
  
  struct ucontext_ia32 {
  	unsigned int	  uc_flags;
  	unsigned int 	  uc_link;
  	stack_ia32_t	  uc_stack;
  	struct sigcontext_ia32 uc_mcontext;
  	compat_sigset_t	  uc_sigmask;	/* mask last for extensibility */
  };
  
  /* This matches struct stat64 in glibc2.2, hence the absolutely
   * insane amounts of padding around dev_t's.
   */
  struct stat64 {
  	unsigned long long	st_dev;
  	unsigned char		__pad0[4];
  
  #define STAT64_HAS_BROKEN_ST_INO	1
  	unsigned int		__st_ino;
  
  	unsigned int		st_mode;
  	unsigned int		st_nlink;
  
  	unsigned int		st_uid;
  	unsigned int		st_gid;
  
  	unsigned long long	st_rdev;
  	unsigned char		__pad3[4];
  
  	long long		st_size;
  	unsigned int		st_blksize;

  	long long		st_blocks;/* Number 512-byte blocks allocated */

  
  	unsigned 		st_atime;
  	unsigned 		st_atime_nsec;
  	unsigned 		st_mtime;
  	unsigned 		st_mtime_nsec;
  	unsigned 		st_ctime;
  	unsigned 		st_ctime_nsec;
  
  	unsigned long long	st_ino;
  } __attribute__((packed));

  typedef struct compat_siginfo {

  	int si_signo;
  	int si_errno;
  	int si_code;
  
  	union {

  		int _pad[((128 / sizeof(int)) - 3)];

  
  		/* kill() */
  		struct {
  			unsigned int _pid;	/* sender's pid */
  			unsigned int _uid;	/* sender's uid */
  		} _kill;
  
  		/* POSIX.1b timers */
  		struct {

  			compat_timer_t _tid;	/* timer id */

  			int _overrun;		/* overrun count */
  			compat_sigval_t _sigval;	/* same as below */
  			int _sys_private;	/* not to be passed to user */
  			int _overrun_incr;	/* amount to add to overrun */
  		} _timer;
  
  		/* POSIX.1b signals */
  		struct {
  			unsigned int _pid;	/* sender's pid */
  			unsigned int _uid;	/* sender's uid */
  			compat_sigval_t _sigval;
  		} _rt;
  
  		/* SIGCHLD */
  		struct {
  			unsigned int _pid;	/* which child */
  			unsigned int _uid;	/* sender's uid */
  			int _status;		/* exit code */
  			compat_clock_t _utime;
  			compat_clock_t _stime;
  		} _sigchld;
  
  		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
  		struct {
  			unsigned int _addr;	/* faulting insn/memory ref. */
  		} _sigfault;
  
  		/* SIGPOLL */
  		struct {
  			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
  			int _fd;
  		} _sigpoll;
  	} _sifields;
  } compat_siginfo_t;

  struct sigframe32 {
  	u32 pretcode;
  	int sig;
  	struct sigcontext_ia32 sc;
  	struct _fpstate_ia32 fpstate;
  	unsigned int extramask[_COMPAT_NSIG_WORDS-1];

  };

  struct rt_sigframe32 {
  	u32 pretcode;
  	int sig;
  	u32 pinfo;
  	u32 puc;
  	compat_siginfo_t info;
  	struct ucontext_ia32 uc;
  	struct _fpstate_ia32 fpstate;

  };
  
  struct ustat32 {

  	__u32			f_tfree;

  	compat_ino_t		f_tinode;
  	char			f_fname[6];
  	char			f_fpack[6];
  };
  
  #define IA32_STACK_TOP IA32_PAGE_OFFSET
  
  #ifdef __KERNEL__

  struct linux_binprm;
  extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
  				unsigned long stack_top, int exec_stack);

  struct mm_struct;
  extern void ia32_pick_mmap_layout(struct mm_struct *mm);

  #endif
  
  #endif /* !CONFIG_IA32_SUPPORT */

  
  #endif