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Linux kernel mirror (for testing)
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linux
1/*
2 * include/asm-v850/unistd.h -- System call numbers and invocation mechanism
3 *
4 * Copyright (C) 2001,02,03,04 NEC Electronics Corporation
5 * Copyright (C) 2001,02,03,04 Miles Bader <miles@gnu.org>
6 *
7 * This file is subject to the terms and conditions of the GNU General
8 * Public License. See the file COPYING in the main directory of this
9 * archive for more details.
10 *
11 * Written by Miles Bader <miles@gnu.org>
12 */
13
14#ifndef __V850_UNISTD_H__
15#define __V850_UNISTD_H__
16
17#include <asm/clinkage.h>
18
19#define __NR_restart_syscall 0
20#define __NR_exit 1
21#define __NR_fork 2
22#define __NR_read 3
23#define __NR_write 4
24#define __NR_open 5
25#define __NR_close 6
26#define __NR_waitpid 7
27#define __NR_creat 8
28#define __NR_link 9
29#define __NR_unlink 10
30#define __NR_execve 11
31#define __NR_chdir 12
32#define __NR_time 13
33#define __NR_mknod 14
34#define __NR_chmod 15
35#define __NR_chown 16
36#define __NR_break 17
37#define __NR_lseek 19
38#define __NR_getpid 20
39#define __NR_mount 21
40#define __NR_umount 22
41#define __NR_setuid 23
42#define __NR_getuid 24
43#define __NR_stime 25
44#define __NR_ptrace 26
45#define __NR_alarm 27
46#define __NR_pause 29
47#define __NR_utime 30
48#define __NR_stty 31
49#define __NR_gtty 32
50#define __NR_access 33
51#define __NR_nice 34
52#define __NR_ftime 35
53#define __NR_sync 36
54#define __NR_kill 37
55#define __NR_rename 38
56#define __NR_mkdir 39
57#define __NR_rmdir 40
58#define __NR_dup 41
59#define __NR_pipe 42
60#define __NR_times 43
61#define __NR_prof 44
62#define __NR_brk 45
63#define __NR_setgid 46
64#define __NR_getgid 47
65#define __NR_signal 48
66#define __NR_geteuid 49
67#define __NR_getegid 50
68#define __NR_acct 51
69#define __NR_umount2 52
70#define __NR_lock 53
71#define __NR_ioctl 54
72#define __NR_fcntl 55
73#define __NR_setpgid 57
74#define __NR_umask 60
75#define __NR_chroot 61
76#define __NR_ustat 62
77#define __NR_dup2 63
78#define __NR_getppid 64
79#define __NR_getpgrp 65
80#define __NR_setsid 66
81#define __NR_sigaction 67
82#define __NR_sgetmask 68
83#define __NR_ssetmask 69
84#define __NR_setreuid 70
85#define __NR_setregid 71
86#define __NR_sigsuspend 72
87#define __NR_sigpending 73
88#define __NR_sethostname 74
89#define __NR_setrlimit 75
90#define __NR_ugetrlimit 76
91#define __NR_getrusage 77
92#define __NR_gettimeofday 78
93#define __NR_settimeofday 79
94#define __NR_getgroups 80
95#define __NR_setgroups 81
96#define __NR_select 82
97#define __NR_symlink 83
98#define __NR_readlink 85
99#define __NR_uselib 86
100#define __NR_swapon 87
101#define __NR_reboot 88
102#define __NR_readdir 89
103#define __NR_mmap 90
104#define __NR_munmap 91
105#define __NR_truncate 92
106#define __NR_ftruncate 93
107#define __NR_fchmod 94
108#define __NR_fchown 95
109#define __NR_getpriority 96
110#define __NR_setpriority 97
111#define __NR_profil 98
112#define __NR_statfs 99
113#define __NR_fstatfs 100
114#define __NR_socketcall 102
115#define __NR_syslog 103
116#define __NR_setitimer 104
117#define __NR_getitimer 105
118#define __NR_stat 106
119#define __NR_lstat 107
120#define __NR_fstat 108
121#define __NR_vhangup 111
122#define __NR_wait4 114
123#define __NR_swapoff 115
124#define __NR_sysinfo 116
125#define __NR_ipc 117
126#define __NR_fsync 118
127#define __NR_sigreturn 119
128#define __NR_clone 120
129#define __NR_setdomainname 121
130#define __NR_uname 122
131#define __NR_cacheflush 123
132#define __NR_adjtimex 124
133#define __NR_mprotect 125
134#define __NR_sigprocmask 126
135#define __NR_create_module 127
136#define __NR_init_module 128
137#define __NR_delete_module 129
138#define __NR_get_kernel_syms 130
139#define __NR_quotactl 131
140#define __NR_getpgid 132
141#define __NR_fchdir 133
142#define __NR_bdflush 134
143#define __NR_sysfs 135
144#define __NR_personality 136
145#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
146#define __NR_setfsuid 138
147#define __NR_setfsgid 139
148#define __NR__llseek 140
149#define __NR_getdents 141
150#define __NR_flock 143
151#define __NR_msync 144
152#define __NR_readv 145
153#define __NR_writev 146
154#define __NR_getsid 147
155#define __NR_fdatasync 148
156#define __NR__sysctl 149
157#define __NR_mlock 150
158#define __NR_munlock 151
159#define __NR_mlockall 152
160#define __NR_munlockall 153
161#define __NR_sched_setparam 154
162#define __NR_sched_getparam 155
163#define __NR_sched_setscheduler 156
164#define __NR_sched_getscheduler 157
165#define __NR_sched_yield 158
166#define __NR_sched_get_priority_max 159
167#define __NR_sched_get_priority_min 160
168#define __NR_sched_rr_get_interval 161
169#define __NR_nanosleep 162
170#define __NR_mremap 163
171#define __NR_setresuid 164
172#define __NR_getresuid 165
173#define __NR_query_module 167
174#define __NR_poll 168
175#define __NR_nfsservctl 169
176#define __NR_setresgid 170
177#define __NR_getresgid 171
178#define __NR_prctl 172
179#define __NR_rt_sigreturn 173
180#define __NR_rt_sigaction 174
181#define __NR_rt_sigprocmask 175
182#define __NR_rt_sigpending 176
183#define __NR_rt_sigtimedwait 177
184#define __NR_rt_sigqueueinfo 178
185#define __NR_rt_sigsuspend 179
186#define __NR_pread 180
187#define __NR_pwrite 181
188#define __NR_lchown 182
189#define __NR_getcwd 183
190#define __NR_capget 184
191#define __NR_capset 185
192#define __NR_sigaltstack 186
193#define __NR_sendfile 187
194#define __NR_getpmsg 188 /* some people actually want streams */
195#define __NR_putpmsg 189 /* some people actually want streams */
196#define __NR_vfork 190
197#define __NR_mmap2 192
198#define __NR_truncate64 193
199#define __NR_ftruncate64 194
200#define __NR_stat64 195
201#define __NR_lstat64 196
202#define __NR_fstat64 197
203#define __NR_fcntl64 198
204#define __NR_getdents64 199
205#define __NR_pivot_root 200
206#define __NR_gettid 201
207#define __NR_tkill 202
208
209
210/* Syscall protocol:
211 Syscall number in r12, args in r6-r9, r13-r14
212 Return value in r10
213 Trap 0 for `short' syscalls, where all the args can fit in function
214 call argument registers, and trap 1 when there are additional args in
215 r13-r14. */
216
217#define SYSCALL_NUM "r12"
218#define SYSCALL_ARG0 "r6"
219#define SYSCALL_ARG1 "r7"
220#define SYSCALL_ARG2 "r8"
221#define SYSCALL_ARG3 "r9"
222#define SYSCALL_ARG4 "r13"
223#define SYSCALL_ARG5 "r14"
224#define SYSCALL_RET "r10"
225
226#define SYSCALL_SHORT_TRAP "0"
227#define SYSCALL_LONG_TRAP "1"
228
229/* Registers clobbered by any syscall. This _doesn't_ include the syscall
230 number (r12) or the `extended arg' registers (r13, r14), even though
231 they are actually clobbered too (this is because gcc's `asm' statement
232 doesn't allow a clobber to be used as an input or output). */
233#define SYSCALL_CLOBBERS "r1", "r5", "r11", "r15", "r16", \
234 "r17", "r18", "r19"
235
236/* Registers clobbered by a `short' syscall. This includes all clobbers
237 except the syscall number (r12). */
238#define SYSCALL_SHORT_CLOBBERS SYSCALL_CLOBBERS, "r13", "r14"
239
240
241/* User programs sometimes end up including this header file
242 (indirectly, via uClibc header files), so I'm a bit nervous just
243 including <linux/compiler.h>. */
244#if !defined(__builtin_expect) && __GNUC__ == 2 && __GNUC_MINOR__ < 96
245#define __builtin_expect(x, expected_value) (x)
246#endif
247
248#define __syscall_return(type, res) \
249 do { \
250 /* user-visible error numbers are in the range -1 - -124: \
251 see <asm-v850/errno.h> */ \
252 if (__builtin_expect ((unsigned long)(res) >= (unsigned long)(-125), 0)) { \
253 errno = -(res); \
254 res = -1; \
255 } \
256 return (type) (res); \
257 } while (0)
258
259
260#define _syscall0(type, name) \
261type name (void) \
262{ \
263 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
264 register unsigned long __ret __asm__ (SYSCALL_RET); \
265 __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \
266 : "=r" (__ret), "=r" (__syscall) \
267 : "1" (__syscall) \
268 : SYSCALL_SHORT_CLOBBERS); \
269 __syscall_return (type, __ret); \
270}
271
272#define _syscall1(type, name, atype, a) \
273type name (atype a) \
274{ \
275 register atype __a __asm__ (SYSCALL_ARG0) = a; \
276 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
277 register unsigned long __ret __asm__ (SYSCALL_RET); \
278 __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \
279 : "=r" (__ret), "=r" (__syscall) \
280 : "1" (__syscall), "r" (__a) \
281 : SYSCALL_SHORT_CLOBBERS); \
282 __syscall_return (type, __ret); \
283}
284
285#define _syscall2(type, name, atype, a, btype, b) \
286type name (atype a, btype b) \
287{ \
288 register atype __a __asm__ (SYSCALL_ARG0) = a; \
289 register btype __b __asm__ (SYSCALL_ARG1) = b; \
290 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
291 register unsigned long __ret __asm__ (SYSCALL_RET); \
292 __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \
293 : "=r" (__ret), "=r" (__syscall) \
294 : "1" (__syscall), "r" (__a), "r" (__b) \
295 : SYSCALL_SHORT_CLOBBERS); \
296 __syscall_return (type, __ret); \
297}
298
299#define _syscall3(type, name, atype, a, btype, b, ctype, c) \
300type name (atype a, btype b, ctype c) \
301{ \
302 register atype __a __asm__ (SYSCALL_ARG0) = a; \
303 register btype __b __asm__ (SYSCALL_ARG1) = b; \
304 register ctype __c __asm__ (SYSCALL_ARG2) = c; \
305 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
306 register unsigned long __ret __asm__ (SYSCALL_RET); \
307 __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \
308 : "=r" (__ret), "=r" (__syscall) \
309 : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c) \
310 : SYSCALL_SHORT_CLOBBERS); \
311 __syscall_return (type, __ret); \
312}
313
314#define _syscall4(type, name, atype, a, btype, b, ctype, c, dtype, d) \
315type name (atype a, btype b, ctype c, dtype d) \
316{ \
317 register atype __a __asm__ (SYSCALL_ARG0) = a; \
318 register btype __b __asm__ (SYSCALL_ARG1) = b; \
319 register ctype __c __asm__ (SYSCALL_ARG2) = c; \
320 register dtype __d __asm__ (SYSCALL_ARG3) = d; \
321 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
322 register unsigned long __ret __asm__ (SYSCALL_RET); \
323 __asm__ __volatile__ ("trap " SYSCALL_SHORT_TRAP \
324 : "=r" (__ret), "=r" (__syscall) \
325 : "1" (__syscall), \
326 "r" (__a), "r" (__b), "r" (__c), "r" (__d) \
327 : SYSCALL_SHORT_CLOBBERS); \
328 __syscall_return (type, __ret); \
329}
330
331#define _syscall5(type, name, atype, a, btype, b, ctype, c, dtype, d, etype,e)\
332type name (atype a, btype b, ctype c, dtype d, etype e) \
333{ \
334 register atype __a __asm__ (SYSCALL_ARG0) = a; \
335 register btype __b __asm__ (SYSCALL_ARG1) = b; \
336 register ctype __c __asm__ (SYSCALL_ARG2) = c; \
337 register dtype __d __asm__ (SYSCALL_ARG3) = d; \
338 register etype __e __asm__ (SYSCALL_ARG4) = e; \
339 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
340 register unsigned long __ret __asm__ (SYSCALL_RET); \
341 __asm__ __volatile__ ("trap " SYSCALL_LONG_TRAP \
342 : "=r" (__ret), "=r" (__syscall), "=r" (__e) \
343 : "1" (__syscall), \
344 "r" (__a), "r" (__b), "r" (__c), "r" (__d), "2" (__e) \
345 : SYSCALL_CLOBBERS); \
346 __syscall_return (type, __ret); \
347}
348
349#if __GNUC__ < 3
350/* In older versions of gcc, `asm' statements with more than 10
351 input/output arguments produce a fatal error. To work around this
352 problem, we use two versions, one for gcc-3.x and one for earlier
353 versions of gcc (the `earlier gcc' version doesn't work with gcc-3.x
354 because gcc-3.x doesn't allow clobbers to also be input arguments). */
355#define __SYSCALL6_TRAP(syscall, ret, a, b, c, d, e, f) \
356 __asm__ __volatile__ ("trap " SYSCALL_LONG_TRAP \
357 : "=r" (ret), "=r" (syscall) \
358 : "1" (syscall), \
359 "r" (a), "r" (b), "r" (c), "r" (d), \
360 "r" (e), "r" (f) \
361 : SYSCALL_CLOBBERS, SYSCALL_ARG4, SYSCALL_ARG5);
362#else /* __GNUC__ >= 3 */
363#define __SYSCALL6_TRAP(syscall, ret, a, b, c, d, e, f) \
364 __asm__ __volatile__ ("trap " SYSCALL_LONG_TRAP \
365 : "=r" (ret), "=r" (syscall), \
366 "=r" (e), "=r" (f) \
367 : "1" (syscall), \
368 "r" (a), "r" (b), "r" (c), "r" (d), \
369 "2" (e), "3" (f) \
370 : SYSCALL_CLOBBERS);
371#endif
372
373#define _syscall6(type, name, atype, a, btype, b, ctype, c, dtype, d, etype, e, ftype, f) \
374type name (atype a, btype b, ctype c, dtype d, etype e, ftype f) \
375{ \
376 register atype __a __asm__ (SYSCALL_ARG0) = a; \
377 register btype __b __asm__ (SYSCALL_ARG1) = b; \
378 register ctype __c __asm__ (SYSCALL_ARG2) = c; \
379 register dtype __d __asm__ (SYSCALL_ARG3) = d; \
380 register etype __e __asm__ (SYSCALL_ARG4) = e; \
381 register etype __f __asm__ (SYSCALL_ARG5) = f; \
382 register unsigned long __syscall __asm__ (SYSCALL_NUM) = __NR_##name; \
383 register unsigned long __ret __asm__ (SYSCALL_RET); \
384 __SYSCALL6_TRAP(__syscall, __ret, __a, __b, __c, __d, __e, __f); \
385 __syscall_return (type, __ret); \
386}
387
388
389#ifdef __KERNEL__
390#define __ARCH_WANT_IPC_PARSE_VERSION
391#define __ARCH_WANT_OLD_READDIR
392#define __ARCH_WANT_STAT64
393#define __ARCH_WANT_SYS_ALARM
394#define __ARCH_WANT_SYS_GETHOSTNAME
395#define __ARCH_WANT_SYS_PAUSE
396#define __ARCH_WANT_SYS_SGETMASK
397#define __ARCH_WANT_SYS_SIGNAL
398#define __ARCH_WANT_SYS_TIME
399#define __ARCH_WANT_SYS_UTIME
400#define __ARCH_WANT_SYS_WAITPID
401#define __ARCH_WANT_SYS_SOCKETCALL
402#define __ARCH_WANT_SYS_FADVISE64
403#define __ARCH_WANT_SYS_GETPGRP
404#define __ARCH_WANT_SYS_LLSEEK
405#define __ARCH_WANT_SYS_NICE
406#define __ARCH_WANT_SYS_OLDUMOUNT
407#define __ARCH_WANT_SYS_SIGPENDING
408#define __ARCH_WANT_SYS_SIGPROCMASK
409#define __ARCH_WANT_SYS_RT_SIGACTION
410#endif
411
412#ifdef __KERNEL_SYSCALLS__
413
414#include <linux/compiler.h>
415#include <linux/types.h>
416
417/*
418 * we need this inline - forking from kernel space will result
419 * in NO COPY ON WRITE (!!!), until an execve is executed. This
420 * is no problem, but for the stack. This is handled by not letting
421 * main() use the stack at all after fork(). Thus, no function
422 * calls - which means inline code for fork too, as otherwise we
423 * would use the stack upon exit from 'fork()'.
424 *
425 * Actually only pause and fork are needed inline, so that there
426 * won't be any messing with the stack from main(), but we define
427 * some others too.
428 */
429#define __NR__exit __NR_exit
430extern inline _syscall0(pid_t,setsid)
431extern inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
432extern inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
433extern inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
434extern inline _syscall1(int,dup,int,fd)
435extern inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
436extern inline _syscall3(int,open,const char *,file,int,flag,int,mode)
437extern inline _syscall1(int,close,int,fd)
438extern inline _syscall1(int,_exit,int,exitcode)
439extern inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
440
441extern inline pid_t wait(int * wait_stat)
442{
443 return waitpid (-1, wait_stat, 0);
444}
445
446unsigned long sys_mmap(unsigned long addr, size_t len,
447 unsigned long prot, unsigned long flags,
448 unsigned long fd, off_t offset);
449unsigned long sys_mmap2(unsigned long addr, size_t len,
450 unsigned long prot, unsigned long flags,
451 unsigned long fd, unsigned long pgoff);
452struct pt_regs;
453int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs);
454int sys_pipe (int *fildes);
455int sys_ptrace(long request, long pid, long addr, long data);
456struct sigaction;
457asmlinkage long sys_rt_sigaction(int sig,
458 const struct sigaction __user *act,
459 struct sigaction __user *oact,
460 size_t sigsetsize);
461
462#endif
463
464/*
465 * "Conditional" syscalls
466 */
467#define cond_syscall(name) \
468 asm (".weak\t" C_SYMBOL_STRING(name) ";" \
469 ".set\t" C_SYMBOL_STRING(name) "," C_SYMBOL_STRING(sys_ni_syscall))
470#if 0
471/* This doesn't work if there's a function prototype for NAME visible,
472 because the argument types probably won't match. */
473#define cond_syscall(name) \
474 void name (void) __attribute__ ((weak, alias ("sys_ni_syscall")));
475#endif
476
477#endif /* __V850_UNISTD_H__ */