root/include/asm-sparc/unistd.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. _syscall0
  2. setup
  3. wait
  4. kernel_thread

   1 /* $Id: unistd.h,v 1.16 1995/12/29 23:14:26 miguel Exp $ */
   2 #ifndef _SPARC_UNISTD_H
   3 #define _SPARC_UNISTD_H
   4 
   5 /*
   6  * System calls under the Sparc.
   7  *
   8  * Don't be scared by the ugly clobbers, it is the only way I can
   9  * think of right now to force the arguments into fixed registers
  10  * before the trap into the system call with gcc 'asm' statements.
  11  *
  12  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  13  *
  14  * SunOS compatability based upon preliminary work which is:
  15  *
  16  * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
  17  */
  18 
  19 #define __NR_setup                0 /* Used only by init, to get system going.     */
  20 #define __NR_exit                 1 /* Common                                      */
  21 #define __NR_fork                 2 /* Common                                      */
  22 #define __NR_read                 3 /* Common                                      */
  23 #define __NR_write                4 /* Common                                      */
  24 #define __NR_open                 5 /* Common                                      */
  25 #define __NR_close                6 /* Common                                      */
  26 #define __NR_wait4                7 /* Common                                      */
  27 #define __NR_creat                8 /* Common                                      */
  28 #define __NR_link                 9 /* Common                                      */
  29 #define __NR_unlink              10 /* Common                                      */
  30 #define __NR_execv               11 /* SunOS Specific                              */
  31 #define __NR_chdir               12 /* Common                                      */
  32 /* #define __NR_ni_syscall       13    ENOSYS under SunOS                          */
  33 #define __NR_mknod               14 /* Common                                      */
  34 #define __NR_chmod               15 /* Common                                      */
  35 #define __NR_chown               16 /* Common                                      */
  36 #define __NR_brk                 17 /* Common                                      */
  37 /* #define __NR_ni_syscall       18    ENOSYS under SunOS                          */
  38 #define __NR_lseek               19 /* Common                                      */
  39 #define __NR_getpid              20 /* Common                                      */
  40 /* #define __NR_ni_syscall       21    ENOSYS under SunOS                          */
  41 /* #define __NR_ni_syscall       22    ENOSYS under SunOS                          */
  42 #define __NR_setuid              23 /* Implemented via setreuid in SunOS           */
  43 #define __NR_getuid              24 /* Common                                      */
  44 /* #define __NR_ni_syscall       25    ENOSYS under SunOS                          */
  45 #define __NR_ptrace              26 /* Common                                      */
  46 #define __NR_alarm               27 /* Implemented via setitimer in SunOS          */
  47 /* #define __NR_ni_syscall       28    ENOSYS under SunOS                          */
  48 #define __NR_pause               29 /* Is sigblock(0)->sigpause() in SunOS         */
  49 #define __NR_utime               30 /* Implemented via utimes() under SunOS        */
  50 #define __NR_stty                31 /* Implemented via ioctl() under SunOS         */
  51 #define __NR_gtty                32 /* Implemented via ioctl() under SunOS         */
  52 #define __NR_access              33 /* Common                                      */
  53 #define __NR_nice                34 /* Implemented via get/setpriority() in SunOS  */
  54 #define __NR_ftime               35 /* Implemented via gettimeofday() in SunOS     */
  55 #define __NR_sync                36 /* Common                                      */
  56 #define __NR_kill                37 /* Common                                      */
  57 #define __NR_stat                38 /* Common                                      */
  58 /* #define __NR_ni_syscall       39    ENOSYS under SunOS                          */
  59 #define __NR_lstat               40 /* Common                                      */
  60 #define __NR_dup                 41 /* Common                                      */
  61 #define __NR_pipe                42 /* Common                                      */
  62 #define __NR_times               43 /* Implemented via getrusage() in SunOS        */
  63 #define __NR_profil              44 /* Common                                      */
  64 /* #define __NR_ni_syscall       45    ENOSYS under SunOS                          */
  65 #define __NR_setgid              46 /* Implemented via setregid() in SunOS         */
  66 #define __NR_getgid              47 /* Common                                      */
  67 #define __NR_signal              48 /* Implemented via sigvec() in SunOS           */
  68 #define __NR_geteuid             49 /* SunOS calls getuid()                        */
  69 #define __NR_getegid             50 /* SunOS calls getgid()                        */
  70 #define __NR_acct                51 /* Common                                      */
  71 /* #define __NR_ni_syscall       52    ENOSYS under SunOS                          */
  72 #define __NR_mctl                53 /* SunOS specific                              */
  73 #define __NR_ioctl               54 /* Common                                      */
  74 #define __NR_reboot              55 /* Common                                      */
  75 /* #define __NR_ni_syscall       56    ENOSYS under SunOS                          */
  76 #define __NR_symlink             57 /* Common                                      */
  77 #define __NR_readlink            58 /* Common                                      */
  78 #define __NR_execve              59 /* Common                                      */
  79 #define __NR_umask               60 /* Common                                      */
  80 #define __NR_chroot              61 /* Common                                      */
  81 #define __NR_fstat               62 /* Common                                      */
  82 /* #define __NR_ni_syscall       63    ENOSYS under SunOS                          */
  83 #define __NR_getpagesize         64 /* Common                                      */
  84 #define __NR_msync               65 /* Common in newer 1.3.x revs...               */
  85 /* #define __NR_ni_syscall       66    ENOSYS under SunOS                          */
  86 /* #define __NR_ni_syscall       67    ENOSYS under SunOS                          */
  87 /* #define __NR_ni_syscall       68    ENOSYS under SunOS                          */
  88 #define __NR_sbrk                69 /* SunOS Specific                              */
  89 #define __NR_sstk                70 /* SunOS Specific                              */
  90 #define __NR_mmap                71 /* Common                                      */
  91 #define __NR_vadvise             72 /* SunOS Specific                              */
  92 #define __NR_munmap              73 /* Common                                      */
  93 #define __NR_mprotect            74 /* Common                                      */
  94 #define __NR_madvise             75 /* SunOS Specific                              */
  95 #define __NR_vhangup             76 /* Common                                      */
  96 /* #define __NR_ni_syscall       77    ENOSYS under SunOS                          */
  97 #define __NR_mincore             78 /* SunOS Specific                              */
  98 #define __NR_getgroups           79 /* Common                                      */
  99 #define __NR_setgroups           80 /* Common                                      */
 100 #define __NR_getpgrp             81 /* Common                                      */
 101 #define __NR_setpgrp             82 /* setpgid, same difference...                 */
 102 #define __NR_setitimer           83 /* Common                                      */
 103 /* #define __NR_ni_syscall       84    ENOSYS under SunOS                          */
 104 #define __NR_swapon              85 /* Common                                      */
 105 #define __NR_getitimer           86 /* Common                                      */
 106 #define __NR_gethostname         87 /* SunOS Specific                              */
 107 #define __NR_sethostname         88 /* Common                                      */
 108 #define __NR_getdtablesize       89 /* SunOS Specific                              */
 109 #define __NR_dup2                90 /* Common                                      */
 110 #define __NR_getdopt             91 /* SunOS Specific                              */
 111 #define __NR_fcntl               92 /* Common                                      */
 112 #define __NR_select              93 /* Common                                      */
 113 #define __NR_setdopt             94 /* SunOS Specific                              */
 114 #define __NR_fsync               95 /* Common                                      */
 115 #define __NR_setpriority         96 /* Common                                      */
 116 #define __NR_socket              97 /* SunOS Specific                              */
 117 #define __NR_connect             98 /* SunOS Specific                              */
 118 #define __NR_accept              99 /* SunOS Specific                              */
 119 #define __NR_getpriority        100 /* Common                                      */
 120 #define __NR_send               101 /* SunOS Specific                              */
 121 #define __NR_recv               102 /* SunOS Specific                              */
 122 /* #define __NR_ni_syscall      103    ENOSYS under SunOS                          */
 123 #define __NR_bind               104 /* SunOS Specific                              */
 124 #define __NR_setsockopt         105 /* SunOS Specific                              */
 125 #define __NR_listen             106 /* SunOS Specific                              */
 126 /* #define __NR_ni_syscall      107    ENOSYS under SunOS                          */
 127 #define __NR_sigvec             108 /* SunOS Specific                              */
 128 #define __NR_sigblock           109 /* SunOS Specific                              */
 129 #define __NR_sigsetmask         110 /* SunOS Specific                              */
 130 #define __NR_sigpause           111 /* SunOS Specific                              */
 131 #define __NR_sigstack           112 /* SunOS Specific                              */
 132 #define __NR_recvmsg            113 /* SunOS Specific                              */
 133 #define __NR_sendmsg            114 /* SunOS Specific                              */
 134 #define __NR_vtrace             115 /* SunOS Specific                              */
 135 #define __NR_gettimeofday       116 /* Common                                      */
 136 #define __NR_getrusage          117 /* Common                                      */
 137 #define __NR_getsockopt         118 /* SunOS Specific                              */
 138 /* #define __NR_ni_syscall      119    ENOSYS under SunOS                          */
 139 #define __NR_readv              120 /* Common                                      */
 140 #define __NR_writev             121 /* Common                                      */
 141 #define __NR_settimeofday       122 /* Common                                      */
 142 #define __NR_fchown             123 /* Common                                      */
 143 #define __NR_fchmod             124 /* Common                                      */
 144 #define __NR_recvfrom           125 /* SunOS Specific                              */
 145 #define __NR_setreuid           126 /* Common                                      */
 146 #define __NR_setregid           127 /* Common                                      */
 147 #define __NR_rename             128 /* Common                                      */
 148 #define __NR_truncate           129 /* Common                                      */
 149 #define __NR_ftruncate          130 /* Common                                      */
 150 #define __NR_flock              131 /* Common                                      */
 151 /* #define __NR_ni_syscall      132    ENOSYS under SunOS                          */
 152 #define __NR_sendto             133 /* SunOS Specific                              */
 153 #define __NR_shutdown           134 /* SunOS Specific                              */
 154 #define __NR_socketpair         135 /* SunOS Specific                              */
 155 #define __NR_mkdir              136 /* Common                                      */
 156 #define __NR_rmdir              137 /* Common                                      */
 157 #define __NR_utimes             138 /* SunOS Specific                              */
 158 /* #define __NR_ni_syscall      139    ENOSYS under SunOS                          */
 159 #define __NR_adjtime            140 /* SunOS Specific                              */
 160 #define __NR_getpeername        141 /* SunOS Specific                              */
 161 #define __NR_gethostid          142 /* SunOS Specific                              */
 162 /* #define __NR_ni_syscall      143    ENOSYS under SunOS                          */
 163 #define __NR_getrlimit          144 /* Common                                      */
 164 #define __NR_setrlimit          145 /* Common                                      */
 165 #define __NR_killpg             146 /* SunOS Specific                              */
 166 /* #define __NR_ni_syscall      147    ENOSYS under SunOS                          */
 167 /* #define __NR_ni_syscall      148    ENOSYS under SunOS                          */
 168 /* #define __NR_ni_syscall      149    ENOSYS under SunOS                          */
 169 #define __NR_getsockname        150 /* SunOS Specific                              */
 170 #define __NR_getmsg             151 /* SunOS Specific                              */
 171 #define __NR_putmsg             152 /* SunOS Specific                              */
 172 #define __NR_poll               153 /* SunOS Specific                              */
 173 /* #define __NR_ni_syscall      154    ENOSYS under SunOS                          */
 174 #define __NR_nfssvc             155 /* SunOS Specific                              */
 175 #define __NR_getdirentries      156 /* SunOS Specific                              */
 176 #define __NR_statfs             157 /* Common                                      */
 177 #define __NR_fstatfs            158 /* Common                                      */
 178 #define __NR_umount             159 /* Common                                      */
 179 #define __NR_async_daemon       160 /* SunOS Specific                              */
 180 #define __NR_getfh              161 /* SunOS Specific                              */
 181 #define __NR_getdomainname      162 /* SunOS Specific                              */
 182 #define __NR_setdomainname      163 /* Common                                      */
 183 /* #define __NR_ni_syscall      164    ENOSYS under SunOS                          */
 184 #define __NR_quotactl           165 /* Common                                      */
 185 #define __NR_exportfs           166 /* SunOS Specific                              */
 186 #define __NR_mount              167 /* Common                                      */
 187 #define __NR_ustat              168 /* Common                                      */
 188 #define __NR_semsys             169 /* SunOS Specific                              */
 189 #define __NR_msgsys             170 /* SunOS Specific                              */
 190 #define __NR_shmsys             171 /* SunOS Specific                              */
 191 #define __NR_auditsys           172 /* SunOS Specific                              */
 192 #define __NR_rfssys             173 /* SunOS Specific                              */
 193 #define __NR_getdents           174 /* Common                                      */
 194 #define __NR_setsid             175 /* Common                                      */
 195 #define __NR_fchdir             176 /* Common                                      */
 196 #define __NR_fchroot            177 /* SunOS Specific                              */
 197 #define __NR_vpixsys            178 /* SunOS Specific                              */
 198 #define __NR_aioread            179 /* SunOS Specific                              */
 199 #define __NR_aiowrite           180 /* SunOS Specific                              */
 200 #define __NR_aiowait            181 /* SunOS Specific                              */
 201 #define __NR_aiocancel          182 /* SunOS Specific                              */
 202 #define __NR_sigpending         183 /* Common                                      */
 203 /* #define __NR_ni_syscall      184    ENOSYS under SunOS                          */
 204 #define __NR_setpgid            185 /* Common                                      */
 205 #define __NR_pathconf           186 /* SunOS Specific                              */
 206 #define __NR_fpathconf          187 /* SunOS Specific                              */
 207 #define __NR_sysconf            188 /* SunOS Specific                              */
 208 #define __NR_uname              189 /* Linux Specific                              */
 209 #define __NR_init_module        190 /* Linux Specific                              */
 210 #define __NR_personality        191 /* Linux Specific                              */
 211 #define __NR_prof               192 /* Linux Specific                              */
 212 #define __NR_break              193 /* Linux Specific                              */
 213 #define __NR_lock               194 /* Linux Specific                              */
 214 #define __NR_mpx                195 /* Linux Specific                              */
 215 #define __NR_ulimit             196 /* Linux Specific                              */
 216 #define __NR_getppid            197 /* Linux Specific                              */
 217 #define __NR_sigaction          198 /* Linux Specific                              */
 218 #define __NR_sgetmask           199 /* Linux Specific                              */
 219 #define __NR_ssetmask           200 /* Linux Specific                              */
 220 #define __NR_sigsuspend         201 /* Linux Specific                              */
 221 #define __NR_oldlstat           202 /* Linux Specific                              */
 222 #define __NR_uselib             203 /* Linux Specific                              */
 223 #define __NR_readdir            204 /* Linux Specific                              */
 224 #define __NR_ioperm             205 /* Linux Specific - i386 specific, unused      */
 225 #define __NR_socketcall         206 /* Linux Specific                              */
 226 #define __NR_syslog             207 /* Linux Specific                              */
 227 #define __NR_olduname           208 /* Linux Specific                              */
 228 #define __NR_iopl               209 /* Linux Specific - i386 specific, unused      */
 229 #define __NR_idle               210 /* Linux Specific                              */
 230 #define __NR_vm86               211 /* Linux Specific - i386 specific, unused      */
 231 #define __NR_waitpid            212 /* Linux Specific                              */
 232 #define __NR_swapoff            213 /* Linux Specific                              */
 233 #define __NR_sysinfo            214 /* Linux Specific                              */
 234 #define __NR_ipc                215 /* Linux Specific                              */
 235 #define __NR_sigreturn          216 /* Linux Specific                              */
 236 #define __NR_clone              217 /* Linux Specific                              */
 237 #define __NR_modify_ldt         218 /* Linux Specific - i386 specific, unused      */
 238 #define __NR_adjtimex           219 /* Linux Specific                              */
 239 #define __NR_sigprocmask        220 /* Linux Specific                              */
 240 #define __NR_create_module      221 /* Linux Specific                              */
 241 #define __NR_delete_module      222 /* Linux Specific                              */
 242 #define __NR_get_kernel_syms    223 /* Linux Specific                              */
 243 #define __NR_getpgid            224 /* Linux Specific                              */
 244 #define __NR_bdflush            225 /* Linux Specific                              */
 245 #define __NR_sysfs              226 /* Linux Specific                              */
 246 #define __NR_afs_syscall        227 /* Linux Specific                              */
 247 #define __NR_setfsuid           228 /* Linux Specific                              */
 248 #define __NR_setfsgid           229 /* Linux Specific                              */
 249 #define __NR__newselect         230 /* Linux Specific                              */
 250 #define __NR_time               231 /* Linux Specific                              */
 251 #define __NR_oldstat            232 /* Linux Specific                              */
 252 #define __NR_stime              233 /* Linux Specific                              */
 253 #define __NR_oldfstat           234 /* Linux Specific                              */
 254 #define __NR_phys               235 /* Linux Specific                              */
 255 #define __NR__llseek            236 /* Linux Specific                              */
 256 #define __NR_mlock              237
 257 #define __NR_munlock            238
 258 #define __NR_mlockall           239
 259 #define __NR_munlockall         240
 260 
 261 #define _syscall0(type,name) \
 262 type name(void) \
 263 { \
 264 long __res; \
 265 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
 266                   "t 0x10\n\t" \
 267                   "bcc 1f\n\t" \
 268                   "or %%g0, %%o0, %0\n\t" \
 269                   "sub %%g0, %%o0, %0\n\t" \
 270                   "1:\n\t" \
 271                   : "=r" (__res)\
 272                   : "0" (__NR_##name) \
 273                   : "g1"); \
 274 if (__res >= 0) \
 275     return (type) __res; \
 276 errno = -__res; \
 277 return -1; \
 278 }
 279 
 280 #define _syscall1(type,name,type1,arg1) \
 281 type name(type1 arg1) \
 282 { \
 283 long __res; \
 284 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
 285                   "or %%g0, %1, %%o0\n\t" \
 286                   "t 0x10\n\t" \
 287                   "bcc 1f\n\t" \
 288                   "or %%g0, %%o0, %0\n\t" \
 289                   "sub %%g0, %%o0, %0\n\t" \
 290                   "1:\n\t" \
 291                   : "=r" (__res), "=r" ((long)(arg1)) \
 292                   : "0" (__NR_##name),"1" ((long)(arg1)) \
 293                   : "g1", "o0"); \
 294 if (__res >= 0) \
 295         return (type) __res; \
 296 errno = -__res; \
 297 return -1; \
 298 }
 299 
 300 #define _syscall2(type,name,type1,arg1,type2,arg2) \
 301 type name(type1 arg1,type2 arg2) \
 302 { \
 303 long __res; \
 304 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
 305                   "or %%g0, %1, %%o0\n\t" \
 306                   "or %%g0, %2, %%o1\n\t" \
 307                   "t 0x10\n\t" \
 308                   "bcc 1f\n\t" \
 309                   "or %%g0, %%o0, %0\n\t" \
 310                   "sub %%g0,%%o0,%0\n\t" \
 311                   "1:\n\t" \
 312                   : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)) \
 313                   : "0" (__NR_##name),"1" ((long)(arg1)),"2" ((long)(arg2)) \
 314                   : "g1", "o0", "o1"); \
 315 if (__res >= 0) \
 316         return (type) __res; \
 317 errno = -__res; \
 318 return -1; \
 319 }
 320 
 321 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
 322 type name(type1 arg1,type2 arg2,type3 arg3) \
 323 { \
 324 long __res; \
 325 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
 326                   "or %%g0, %1, %%o0\n\t" \
 327                   "or %%g0, %2, %%o1\n\t" \
 328                   "or %%g0, %3, %%o2\n\t" \
 329                   "t 0x10\n\t" \
 330                   "bcc 1f\n\t" \
 331                   "or %%g0, %%o0, %0\n\t" \
 332                   "sub %%g0, %%o0, %0\n\t" \
 333                   "1:\n\t" \
 334                   : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)), \
 335                     "=r" ((long)(arg3)) \
 336                   : "0" (__NR_##name), "1" ((long)(arg1)), "2" ((long)(arg2)), \
 337                     "3" ((long)(arg3)) \
 338                   : "g1", "o0", "o1", "o2"); \
 339 if (__res>=0) \
 340         return (type) __res; \
 341 errno = -__res; \
 342 return -1; \
 343 }
 344 
 345 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
 346 type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
 347 { \
 348 long __res; \
 349 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
 350                   "or %%g0, %1, %%o0\n\t" \
 351                   "or %%g0, %2, %%o1\n\t" \
 352                   "or %%g0, %3, %%o2\n\t" \
 353                   "or %%g0, %4, %%o3\n\t" \
 354                   "t 0x10\n\t" \
 355                   "bcc 1f\n\t" \
 356                   "or %%g0, %%o0, %0\n\t" \
 357                   "sub %%g0,%%o0, %0\n\t" \
 358                   "1:\n\t" \
 359                   : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)), \
 360                     "=r" ((long)(arg3)), "=r" ((long)(arg4)) \
 361                   : "0" (__NR_##name),"1" ((long)(arg1)),"2" ((long)(arg2)), \
 362                     "3" ((long)(arg3)),"4" ((long)(arg4)) \
 363                   : "g1", "o0", "o1", "o2", "o3"); \
 364 if (__res>=0) \
 365         return (type) __res; \
 366 errno = -__res; \
 367 return -1; \
 368 } 
 369 
 370 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 371           type5,arg5) \
 372 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
 373 { \
 374 long __res; \
 375 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
 376                   "or %%g0, %1, %%o0\n\t" \
 377                   "or %%g0, %2, %%o1\n\t" \
 378                   "or %%g0, %3, %%o2\n\t" \
 379                   "or %%g0, %4, %%o3\n\t" \
 380                   "or %%g0, %5, %%o4\n\t" \
 381                   "t 0x10\n\t" \
 382                   "or %%g0, %%o0, %0\n\t" \
 383                   : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)), \
 384                     "=r" ((long)(arg3)), "=r" ((long)(arg4)), "=r" ((long)(arg5)) \
 385                   : "0" (__NR_##name),"1" ((long)(arg1)),"2" ((long)(arg2)), \
 386                     "3" ((long)(arg3)),"4" ((long)(arg4)),"5" ((long)(arg5)) \
 387                   : "g1", "o0", "o1", "o2", "o3", "o4"); \
 388 if (__res>=0) \
 389         return (type) __res; \
 390 errno = -__res; \
 391 return -1; \
 392 }
 393 #ifdef __KERNEL_SYSCALLS__
 394 
 395 /*
 396  * we need this inline - forking from kernel space will result
 397  * in NO COPY ON WRITE (!!!), until an execve is executed. This
 398  * is no problem, but for the stack. This is handled by not letting
 399  * main() use the stack at all after fork(). Thus, no function
 400  * calls - which means inline code for fork too, as otherwise we
 401  * would use the stack upon exit from 'fork()'.
 402  *
 403  * Actually only pause and fork are needed inline, so that there
 404  * won't be any messing with the stack from main(), but we define
 405  * some others too.
 406  */
 407 #define __NR__exit __NR_exit
 408 /* static inline _syscall0(int,idle) */
 409 static inline _syscall0(int,fork)
     /* [previous][next][first][last][top][bottom][index][help] */
 410 static inline _syscall2(int,clone,unsigned long,flags,char *,ksp)
 411 static inline _syscall0(int,pause)
 412 /* static inline _syscall0(int,setup) */
 413 static inline _syscall0(int,sync)
 414 static inline _syscall0(pid_t,setsid)
 415 static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
 416 static inline _syscall1(int,dup,int,fd)
 417 static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
 418 static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
 419 static inline _syscall1(int,close,int,fd)
 420 static inline _syscall1(int,_exit,int,exitcode)
 421 static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
 422 
 423 extern void sys_idle(void);
 424 static inline void idle(void)
 425 {
 426         sys_idle();
 427 }
 428 
 429 extern int sys_setup(void);
 430 static inline int setup(void)
     /* [previous][next][first][last][top][bottom][index][help] */
 431 {
 432         return sys_setup();
 433 }
 434 
 435 extern int sys_waitpid(int, int *, int);
 436 static inline pid_t wait(int * wait_stat)
     /* [previous][next][first][last][top][bottom][index][help] */
 437 {
 438         long retval;
 439         retval = waitpid(-1,wait_stat,0);
 440         return retval;
 441 }
 442 
 443 /*
 444  * This is the mechanism for creating a new kernel thread.
 445  *
 446  * NOTE! Only a kernel-only process(ie the swapper or direct descendants
 447  * who haven't done an "execve()") should use this: it will work within
 448  * a system call from a "real" process, but the process memory space will
 449  * not be free'd until both the parent and the child have exited.
 450  */
 451 static inline pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
     /* [previous][next][first][last][top][bottom][index][help] */
 452 {
 453         long retval;
 454 
 455         __asm__ __volatile("mov %4, %%g2\n\t"    /* Set aside fn ptr... */
 456                            "mov %5, %%g3\n\t"    /* and arg. */
 457                            "mov %1, %%g1\n\t"
 458                            "mov %2, %%o0\n\t"    /* Clone flags. */
 459                            "mov 0, %%o1\n\t"     /* usp arg == 0 */
 460                            "t 0x10\n\t"          /* Linux/Sparc clone(). */
 461                            "cmp %%o1, 0\n\t"
 462                            "be 1f\n\t"           /* The parent, just return. */
 463                            " nop\n\t"            /* Delay slot. */
 464                            "jmpl %%g2, %%o7\n\t" /* Call the function. */
 465                            " mov %%g3, %%o0\n\t" /* Get back the arg in delay. */
 466                            "mov %3, %%g1\n\t"
 467                            "t 0x10\n\t"          /* Linux/Sparc exit(). */
 468                            /* Notreached by child. */
 469                            "1: mov %%o0, %0\n\t" :
 470                            "=r" (retval) :
 471                            "i" (__NR_clone), "r" (flags | CLONE_VM),
 472                            "i" (__NR_exit),  "r" (fn), "r" (arg) :
 473                            "g1", "g2", "g3", "o0", "o1", "memory");
 474         return retval;
 475 }
 476 
 477 #endif /* __KERNEL_SYSCALLS__ */
 478 
 479 /* sysconf options, for SunOS compatibility */
 480 #define   _SC_ARG_MAX             1
 481 #define   _SC_CHILD_MAX           2
 482 #define   _SC_CLK_TCK             3
 483 #define   _SC_NGROUPS_MAX         4
 484 #define   _SC_OPEN_MAX            5
 485 #define   _SC_JOB_CONTROL         6
 486 #define   _SC_SAVED_IDS           7
 487 #define   _SC_VERSION             8
 488 
 489 #endif /* _SPARC_UNISTD_H */

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