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#ifndef _ASM_PPC_UNISTD_H_
#define _ASM_PPC_UNISTD_H_

#define _NR(n) #n
#define _lisc(n) "li 0," _NR(n)

/*
 * This file contains the system call numbers.
 */

#define __NR_setup                0     /* used only by init, to get system going */
#define __NR_exit                 1
#define __NR_fork                 2
#define __NR_read                 3
#define __NR_write                4
#define __NR_open                 5
#define __NR_close                6
#define __NR_waitpid              7
#define __NR_creat                8
#define __NR_link                 9
#define __NR_unlink              10
#define __NR_execve              11
#define __NR_chdir               12
#define __NR_time                13
#define __NR_mknod               14
#define __NR_chmod               15
#define __NR_chown               16
#define __NR_break               17
#define __NR_oldstat             18
#define __NR_lseek               19
#define __NR_getpid              20
#define __NR_mount               21
#define __NR_umount              22
#define __NR_setuid              23
#define __NR_getuid              24
#define __NR_stime               25
#define __NR_ptrace              26
#define __NR_alarm               27
#define __NR_oldfstat            28
#define __NR_pause               29
#define __NR_utime               30
#define __NR_stty                31
#define __NR_gtty                32
#define __NR_access              33
#define __NR_nice                34
#define __NR_ftime               35
#define __NR_sync                36
#define __NR_kill                37
#define __NR_rename              38
#define __NR_mkdir               39
#define __NR_rmdir               40
#define __NR_dup                 41
#define __NR_pipe                42
#define __NR_times               43
#define __NR_prof                44
#define __NR_brk                 45
#define __NR_setgid              46
#define __NR_getgid              47
#define __NR_signal              48
#define __NR_geteuid             49
#define __NR_getegid             50
#define __NR_acct                51
#define __NR_phys                52
#define __NR_lock                53
#define __NR_ioctl               54
#define __NR_fcntl               55
#define __NR_mpx                 56
#define __NR_setpgid             57
#define __NR_ulimit              58
#define __NR_oldolduname         59
#define __NR_umask               60
#define __NR_chroot              61
#define __NR_ustat               62
#define __NR_dup2                63
#define __NR_getppid             64
#define __NR_getpgrp             65
#define __NR_setsid              66
#define __NR_sigaction           67
#define __NR_sgetmask            68
#define __NR_ssetmask            69
#define __NR_setreuid            70
#define __NR_setregid            71
#define __NR_sigsuspend          72
#define __NR_sigpending          73
#define __NR_sethostname         74
#define __NR_setrlimit           75
#define __NR_getrlimit           76
#define __NR_getrusage           77
#define __NR_gettimeofday        78
#define __NR_settimeofday        79
#define __NR_getgroups           80
#define __NR_setgroups           81
#define __NR_select              82
#define __NR_symlink             83
#define __NR_oldlstat            84
#define __NR_readlink            85
#define __NR_uselib              86
#define __NR_swapon              87
#define __NR_reboot              88
#define __NR_readdir             89
#define __NR_mmap                90
#define __NR_munmap              91
#define __NR_truncate            92
#define __NR_ftruncate           93
#define __NR_fchmod              94
#define __NR_fchown              95
#define __NR_getpriority         96
#define __NR_setpriority         97
#define __NR_profil              98
#define __NR_statfs              99
#define __NR_fstatfs            100
#define __NR_ioperm             101
#define __NR_socketcall         102
#define __NR_syslog             103
#define __NR_setitimer          104
#define __NR_getitimer          105
#define __NR_stat               106
#define __NR_lstat              107
#define __NR_fstat              108
#define __NR_olduname           109
#define __NR_iopl               110
#define __NR_vhangup            111
#define __NR_idle               112
#define __NR_vm86               113
#define __NR_wait4              114
#define __NR_swapoff            115
#define __NR_sysinfo            116
#define __NR_ipc                117
#define __NR_fsync              118
#define __NR_sigreturn          119
#define __NR_clone              120
#define __NR_setdomainname      121
#define __NR_uname              122
#define __NR_modify_ldt         123
#define __NR_adjtimex           124
#define __NR_mprotect           125
#define __NR_sigprocmask        126
#define __NR_create_module      127
#define __NR_init_module        128
#define __NR_delete_module      129
#define __NR_get_kernel_syms    130
#define __NR_quotactl           131
#define __NR_getpgid            132
#define __NR_fchdir             133
#define __NR_bdflush            134
#define __NR_sysfs              135
#define __NR_personality        136
#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
#define __NR_setfsuid           138
#define __NR_setfsgid           139
#define __NR__llseek            140
#define __NR_getdents           141
#define __NR__newselect         142
#define __NR_flock              143
#define __NR_msync              144
#define __NR_readv              145
#define __NR_writev             146
#define __NR_getsid             147

#define __NR_mlock              150
#define __NR_munlock            151
#define __NR_mlockall           152
#define __NR_munlockall         153


#define _syscall0(type,name) \
type name(void) \
{ \
    long retval; \
    __asm__  ( \
              "li 0, %0 \n\t" \
              "sc \n\t" \
              "mr 31,3 \n\t" \
              "bns 10f \n\t" \
              "mr 0,3 \n\t" \
              "lis 3,errno@ha \n\t" \
              "stw 0,errno@l(3) \n\t" \
              "li 3,-1 \n\t" \
              "10: \n\t" \
              : \
              : "i" (__NR_##name) \
              : "0", "31", "3", "cc", "memory" \
              );  \
    return(retval);\
}

#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
    long retval; \
    __asm__  ( \
              "li 0, %0 \n\t" \
              "sc \n\t" \
              "mr 31,3 \n\t" \
              "bns 10f \n\t" \
              "mr 0,3 \n\t" \
              "lis 3,errno@ha \n\t" \
              "stw 0,errno@l(3) \n\t" \
              "li 3,-1 \n\t" \
              "10: \n\t" \
              : \
              : "i" (__NR_##name) \
              : "0", "31", "3", "cc", "memory" \
              );  \
    return(retval); \
}

#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
    long retval; \
    __asm__  ( \
              "li 0, %0 \n\t" \
              "sc \n\t" \
              "mr 31,3 \n\t" \
              "bns 10f \n\t" \
              "mr 0,3 \n\t" \
              "lis 3,errno@ha \n\t" \
              "stw 0,errno@l(3) \n\t" \
              "li 3,-1 \n\t" \
              "10: \n\t" \
              : \
              : "i" (__NR_##name) \
              : "0", "31", "3", "cc", "memory" \
              );  \
    return(retval); \
}


#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1,type2 arg2, type3 arg3) \
{ \
    long retval; \
    __asm__  ( \
              "li 0, %0 \n\t" \
              "sc \n\t" \
              "mr 31,3 \n\t" \
              "bns 10f \n\t" \
              "mr 0,3 \n\t" \
              "lis 3,errno@ha \n\t" \
              "stw 0,errno@l(3) \n\t" \
              "li 3,-1 \n\t" \
              "10: \n\t" \
              : \
              : "i" (__NR_##name) \
              : "0", "31", "3", "cc", "memory" \
              );  \
    return(retval); \
}

#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
    long retval; \
    __asm__  ( \
              "li 0, %0 \n\t" \
              "sc \n\t" \
              "mr 31,3 \n\t" \
              "bns 10f \n\t" \
              "mr 0,3 \n\t" \
              "lis 3,errno@ha \n\t" \
              "stw 0,errno@l(3) \n\t" \
              "li 3,-1 \n\t" \
              "10: \n\t" \
              : \
              : "i" (__NR_##name) \
              : "0", "31", "3", "cc", "memory" \
              );  \
    return(retval); \
}

#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
          type5,arg5) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
    long retval; \
    __asm__  ( \
              "li 0, %0 \n\t" \
              "sc \n\t" \
              "mr 31,3 \n\t" \
              "bns 10f \n\t" \
              "mr 0,3 \n\t" \
              "lis 3,errno@ha \n\t" \
              "stw 0,errno@l(3) \n\t" \
              "li 3,-1 \n\t" \
              "10: \n\t" \
              : \
              : "i" (__NR_##name) \
              : "0", "31", "3", "cc", "memory" \
              );  \
    return(retval); \
}

#ifdef __KERNEL_SYSCALLS__
/*
 * we need this inline - forking from kernel space will result
 * in NO COPY ON WRITE (!!!), until an execve is executed. This
 * is no problem, but for the stack. This is handled by not letting
 * main() use the stack at all after fork(). Thus, no function
 * calls - which means inline code for fork too, as otherwise we
 * would use the stack upon exit from 'fork()'.
 *
 * Actually only pause and fork are needed inline, so that there
 * won't be any messing with the stack from main(), but we define
 * some others too.
 */

/*
   some of these had problems getting the right arguments (namely sys_clone())
   when they were inline so I made them non-inline until we get problems with gcc
   worked out.  I need to check with Linus to find out which he wants inline now
   since the above comment was written a long time ago.

   Once I understand the macro language better this should go away.
             -- Cort
 */

#define __NR__exit __NR_exit
static /*__inline__*/ _syscall0(int,setup) 
static __inline__ _syscall0(int,idle) 
static /*__inline__*/ _syscall0(int,fork)
static __inline__ _syscall0(int,pause)
static __inline__ _syscall0(int,sync)
static __inline__ _syscall0(pid_t,setsid)
static __inline__ _syscall3(int,write,int,fd,const char *,buf,off_t,count)
static /*__inline__*/ _syscall1(int,dup,int,fd)
static /*__inline__*/ _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
static __inline__ _syscall3(int,open,const char *,file,int,flag,int,mode)
static /*__inline__*/ _syscall1(int,close,int,fd)
static /*__inline__*/ _syscall1(int,_exit,int,exitcode)
static __inline__ _syscall2(int,clone,unsigned long,flags,char *,esp)
static __inline__ _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)

static __inline__ pid_t wait(int * wait_stat) 
{
        return waitpid(-1,wait_stat,0);
}

/*
   This is the mechanism for creating a new kernel thread.
   For the time being it only behaves the same as clone().
   It should be changed very soon to work properly and cleanly.  This
   gets us going for now, though.
     -- Cort
 */
static __inline__ long kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
{
  long retval;
  __asm__  (
        "li 0, 120 \n\t"        /* __NR_clone */
        "li 3, %5 \n\t"         /* load flags as arg to clone */
        /*"mr 1,7 \n\t"*/               /* save kernel stack */
        "sc \n\t"               /* syscall */
        /*"cmp 0,1,7 \n\t"*/    /* if kernel stack changes -- child */
        "cmpi   0,3,0 \n\t"
        "bne 1f \n\t"           /* return if parent */
        /* this is in child */
        "li 3, %3 \n\t"         /* child -- load args and call fn */
        "mtlr %4 \n\t"          
        "blrl \n\t"
        "li 0, %2 \n\t"         /* exit after child exits */
        "li 3, 0 \n\t"
        "sc \n\t"
        /* parent */
        "1: \n\t"
        :"=3" (retval)
        :"i" (__NR_clone), "i" (__NR_exit),
         "r" (arg), "r" (fn), "g" (CLONE_VM|flags) 
        :"cc", "1", "0", "3", "7", "31", "memory" );
  return retval;
}


#endif /* __KERNEL_SYSCALLS__ */

#endif /* _ASM_PPC_UNISTD_H_ */