![[first]](../icons/first.png){kind=icon}
![[previous]](../icons/n_left.png){kind=icon}
![[next]](../icons/n_right.png){kind=icon}
![[last]](../icons/last.png){kind=icon}
![[top]](../icons/n_top.png){kind=icon}
![[bottom]](../icons/bottom.png){kind=icon}
![[index]](../icons/index.png){kind=icon}
![[help]](../icons/help.png){kind=icon}
*/
1 /* $Id: unistd.h,v 1.21 1996/04/25 06:13:35 davem 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 compatibility 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 #define __NR_sched_setparam 241
261 #define __NR_sched_getparam 242
262 #define __NR_sched_setscheduler 243
263 #define __NR_sched_getscheduler 244
264 #define __NR_sched_yield 245
265 #define __NR_sched_get_priority_max 246
266 #define __NR_sched_get_priority_min 247
267 #define __NR_sched_rr_get_interval 248
268 #define __NR_nanosleep 249
269 #define __NR_mremap 250
270 #define __NR__sysctl 251
271 #define __NR_getsid 252
272 #define __NR_fdatasync 253
273
274 #define _syscall0(type,name) \
275 type name(void) \
276 { \
277 long __res; \
278 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
279 "t 0x10\n\t" \
280 "bcc 1f\n\t" \
281 "or %%g0, %%o0, %0\n\t" \
282 "sub %%g0, %%o0, %0\n\t" \
283 "1:\n\t" \
284 : "=r" (__res)\
285 : "0" (__NR_##name) \
286 : "g1", "o0"); \
287 if (__res >= 0) \
288 return (type) __res; \
289 errno = -__res; \
290 return -1; \
291 }
292
293 #define _syscall1(type,name,type1,arg1) \
294 type name(type1 arg1) \
295 { \
296 long __res; \
297 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
298 "or %%g0, %1, %%o0\n\t" \
299 "t 0x10\n\t" \
300 "bcc 1f\n\t" \
301 "or %%g0, %%o0, %0\n\t" \
302 "sub %%g0, %%o0, %0\n\t" \
303 "1:\n\t" \
304 : "=r" (__res), "=r" ((long)(arg1)) \
305 : "0" (__NR_##name),"1" ((long)(arg1)) \
306 : "g1", "o0"); \
307 if (__res >= 0) \
308 return (type) __res; \
309 errno = -__res; \
310 return -1; \
311 }
312
313 #define _syscall2(type,name,type1,arg1,type2,arg2) \
314 type name(type1 arg1,type2 arg2) \
315 { \
316 long __res; \
317 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
318 "or %%g0, %1, %%o0\n\t" \
319 "or %%g0, %2, %%o1\n\t" \
320 "t 0x10\n\t" \
321 "bcc 1f\n\t" \
322 "or %%g0, %%o0, %0\n\t" \
323 "sub %%g0,%%o0,%0\n\t" \
324 "1:\n\t" \
325 : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)) \
326 : "0" (__NR_##name),"1" ((long)(arg1)),"2" ((long)(arg2)) \
327 : "g1", "o0", "o1"); \
328 if (__res >= 0) \
329 return (type) __res; \
330 errno = -__res; \
331 return -1; \
332 }
333
334 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
335 type name(type1 arg1,type2 arg2,type3 arg3) \
336 { \
337 long __res; \
338 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
339 "or %%g0, %1, %%o0\n\t" \
340 "or %%g0, %2, %%o1\n\t" \
341 "or %%g0, %3, %%o2\n\t" \
342 "t 0x10\n\t" \
343 "bcc 1f\n\t" \
344 "or %%g0, %%o0, %0\n\t" \
345 "sub %%g0, %%o0, %0\n\t" \
346 "1:\n\t" \
347 : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)), \
348 "=r" ((long)(arg3)) \
349 : "0" (__NR_##name), "1" ((long)(arg1)), "2" ((long)(arg2)), \
350 "3" ((long)(arg3)) \
351 : "g1", "o0", "o1", "o2"); \
352 if (__res>=0) \
353 return (type) __res; \
354 errno = -__res; \
355 return -1; \
356 }
357
358 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
359 type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
360 { \
361 long __res; \
362 __asm__ volatile ("or %%g0, %0, %%g1\n\t" \
363 "or %%g0, %1, %%o0\n\t" \
364 "or %%g0, %2, %%o1\n\t" \
365 "or %%g0, %3, %%o2\n\t" \
366 "or %%g0, %4, %%o3\n\t" \
367 "t 0x10\n\t" \
368 "bcc 1f\n\t" \
369 "or %%g0, %%o0, %0\n\t" \
370 "sub %%g0,%%o0, %0\n\t" \
371 "1:\n\t" \
372 : "=r" (__res), "=r" ((long)(arg1)), "=r" ((long)(arg2)), \
373 "=r" ((long)(arg3)), "=r" ((long)(arg4)) \
374 : "0" (__NR_##name),"1" ((long)(arg1)),"2" ((long)(arg2)), \
375 "3" ((long)(arg3)),"4" ((long)(arg4)) \
376 : "g1", "o0", "o1", "o2", "o3"); \
377 if (__res>=0) \
378 return (type) __res; \
379 errno = -__res; \
380 return -1; \
381 }
382 #
383 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
384 type5,arg5) \
385 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
386 { \
387 long __res; \
388 \
389 __asm__ volatile ("or %%g0, %1, %%o0\n\t" \
390 "or %%g0, %2, %%o1\n\t" \
391 "or %%g0, %3, %%o2\n\t" \
392 "or %%g0, %4, %%o3\n\t" \
393 "or %%g0, %5, %%o4\n\t" \
394 "or %%g0, %6, %%g1\n\t" \
395 "t 0x10\n\t" \
396 "bcc 1f\n\t" \
397 "or %%g0, %%o0, %0\n\t" \
398 "sub %%g0, %%o0, %0\n\t" \
399 "1:\n\t" \
400 : "=r" (__res) \
401 : "0" ((long)(arg1)),"1" ((long)(arg2)), \
402 "2" ((long)(arg3)),"3" ((long)(arg4)),"4" ((long)(arg5)), \
403 "i" (__NR_##name) \
404 : "g1", "o0", "o1", "o2", "o3", "o4"); \
405 if (__res>=0) \
406 return (type) __res; \
407 errno = -__res; \
408 return -1; \
409 }
410 #ifdef __KERNEL_SYSCALLS__
411
412 /*
413 * we need this inline - forking from kernel space will result
414 * in NO COPY ON WRITE (!!!), until an execve is executed. This
415 * is no problem, but for the stack. This is handled by not letting
416 * main() use the stack at all after fork(). Thus, no function
417 * calls - which means inline code for fork too, as otherwise we
418 * would use the stack upon exit from 'fork()'.
419 *
420 * Actually only pause and fork are needed inline, so that there
421 * won't be any messing with the stack from main(), but we define
422 * some others too.
423 */
424 #define __NR__exit __NR_exit
425 static inline _syscall0(int,idle)
/* ![[next]](../icons/right.png)
![[first]](../icons/n_first.png)
![[top]](../icons/top.png)
*/
426 static inline _syscall0(int,fork)
427 static inline _syscall2(int,clone,unsigned long,flags,char *,ksp)
428 static inline _syscall0(int,pause)
429 static inline _syscall0(int,setup)
430 static inline _syscall0(int,sync)
431 static inline _syscall0(pid_t,setsid)
432 static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
433 static inline _syscall1(int,dup,int,fd)
434 static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
435 static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
436 static inline _syscall1(int,close,int,fd)
437 static inline _syscall1(int,_exit,int,exitcode)
438 static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
439
440 static inline pid_t wait(int * wait_stat)
441 {
442 return waitpid(-1,wait_stat,0);
443 }
444
445 /*
446 * This is the mechanism for creating a new kernel thread.
447 *
448 * NOTE! Only a kernel-only process(ie the swapper or direct descendants
449 * who haven't done an "execve()") should use this: it will work within
450 * a system call from a "real" process, but the process memory space will
451 * not be free'd until both the parent and the child have exited.
452 */
453 static inline pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
/* ![[previous]](../icons/left.png)
![[last]](../icons/n_last.png)
*/
454 {
455 long retval;
456
457 __asm__ __volatile("mov %4, %%g2\n\t" /* Set aside fn ptr... */
458 "mov %5, %%g3\n\t" /* and arg. */
459 "mov %1, %%g1\n\t"
460 "mov %2, %%o0\n\t" /* Clone flags. */
461 "mov 0, %%o1\n\t" /* usp arg == 0 */
462 "t 0x10\n\t" /* Linux/Sparc clone(). */
463 "cmp %%o1, 0\n\t"
464 "be 1f\n\t" /* The parent, just return. */
465 " nop\n\t" /* Delay slot. */
466 "jmpl %%g2, %%o7\n\t" /* Call the function. */
467 " mov %%g3, %%o0\n\t" /* Get back the arg in delay. */
468 "mov %3, %%g1\n\t"
469 "t 0x10\n\t" /* Linux/Sparc exit(). */
470 /* Notreached by child. */
471 "1: mov %%o0, %0\n\t" :
472 "=r" (retval) :
473 "i" (__NR_clone), "r" (flags | CLONE_VM),
474 "i" (__NR_exit), "r" (fn), "r" (arg) :
475 "g1", "g2", "g3", "o0", "o1", "memory");
476 return retval;
477 }
478
479 #endif /* __KERNEL_SYSCALLS__ */
480
481 /* sysconf options, for SunOS compatibility */
482 #define _SC_ARG_MAX 1
483 #define _SC_CHILD_MAX 2
484 #define _SC_CLK_TCK 3
485 #define _SC_NGROUPS_MAX 4
486 #define _SC_OPEN_MAX 5
487 #define _SC_JOB_CONTROL 6
488 #define _SC_SAVED_IDS 7
489 #define _SC_VERSION 8
490
491 #endif /* _SPARC_UNISTD_H */
![[bottom]](../icons/n_bottom.png){kind=icon}
*/