1 #ifndef _ASM_I386_UNISTD_H_
2 #define _ASM_I386_UNISTD_H_
5 * This file contains the system call numbers.
8 #define __NR_setup 0 /* used only by init, to get system going */
15 #define __NR_waitpid 7
18 #define __NR_unlink 10
19 #define __NR_execve 11
26 #define __NR_oldstat 18
28 #define __NR_getpid 20
30 #define __NR_umount 22
31 #define __NR_setuid 23
32 #define __NR_getuid 24
34 #define __NR_ptrace 26
36 #define __NR_oldfstat 28
41 #define __NR_access 33
46 #define __NR_rename 38
54 #define __NR_setgid 46
55 #define __NR_getgid 47
56 #define __NR_signal 48
57 #define __NR_geteuid 49
58 #define __NR_getegid 50
65 #define __NR_setpgid 57
66 #define __NR_ulimit 58
67 #define __NR_oldolduname 59
69 #define __NR_chroot 61
72 #define __NR_getppid 64
73 #define __NR_getpgrp 65
74 #define __NR_setsid 66
75 #define __NR_sigaction 67
76 #define __NR_sgetmask 68
77 #define __NR_ssetmask 69
78 #define __NR_setreuid 70
79 #define __NR_setregid 71
80 #define __NR_sigsuspend 72
81 #define __NR_sigpending 73
82 #define __NR_sethostname 74
83 #define __NR_setrlimit 75
84 #define __NR_getrlimit 76
85 #define __NR_getrusage 77
86 #define __NR_gettimeofday 78
87 #define __NR_settimeofday 79
88 #define __NR_getgroups 80
89 #define __NR_setgroups 81
90 #define __NR_select 82
91 #define __NR_symlink 83
92 #define __NR_oldlstat 84
93 #define __NR_readlink 85
94 #define __NR_uselib 86
95 #define __NR_swapon 87
96 #define __NR_reboot 88
97 #define __NR_readdir 89
99 #define __NR_munmap 91
100 #define __NR_truncate 92
101 #define __NR_ftruncate 93
102 #define __NR_fchmod 94
103 #define __NR_fchown 95
104 #define __NR_getpriority 96
105 #define __NR_setpriority 97
106 #define __NR_profil 98
107 #define __NR_statfs 99
108 #define __NR_fstatfs 100
109 #define __NR_ioperm 101
110 #define __NR_socketcall 102
111 #define __NR_syslog 103
112 #define __NR_setitimer 104
113 #define __NR_getitimer 105
114 #define __NR_stat 106
115 #define __NR_lstat 107
116 #define __NR_fstat 108
117 #define __NR_olduname 109
118 #define __NR_iopl 110
119 #define __NR_vhangup 111
120 #define __NR_idle 112
121 #define __NR_vm86old 113
122 #define __NR_wait4 114
123 #define __NR_swapoff 115
124 #define __NR_sysinfo 116
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_modify_ldt 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__newselect 142
151 #define __NR_flock 143
152 #define __NR_msync 144
153 #define __NR_readv 145
154 #define __NR_writev 146
155 #define __NR_getsid 147
156 #define __NR_fdatasync 148
157 #define __NR__sysctl 149
158 #define __NR_mlock 150
159 #define __NR_munlock 151
160 #define __NR_mlockall 152
161 #define __NR_munlockall 153
162 #define __NR_sched_setparam 154
163 #define __NR_sched_getparam 155
164 #define __NR_sched_setscheduler 156
165 #define __NR_sched_getscheduler 157
166 #define __NR_sched_yield 158
167 #define __NR_sched_get_priority_max 159
168 #define __NR_sched_get_priority_min 160
169 #define __NR_sched_rr_get_interval 161
170 #define __NR_nanosleep 162
171 #define __NR_mremap 163
172 #define __NR_setresuid 164
173 #define __NR_getresuid 165
174 #define __NR_vm86 166
175 #define __NR_query_module 167
176 #define __NR_poll 168
177 #define __NR_nfsservctl 169
178 #define __NR_setresgid 170
179 #define __NR_getresgid 171
180 #define __NR_prctl 172
181 #define __NR_rt_sigreturn 173
182 #define __NR_rt_sigaction 174
183 #define __NR_rt_sigprocmask 175
184 #define __NR_rt_sigpending 176
185 #define __NR_rt_sigtimedwait 177
186 #define __NR_rt_sigqueueinfo 178
187 #define __NR_rt_sigsuspend 179
188 #define __NR_pread 180
189 #define __NR_pwrite 181
190 #define __NR_lchown 182
192 /* user-visible error numbers are in the range -1 - -122: see <asm-i386/errno.h> */
194 #define __syscall_return(type, res) \
196 if ((unsigned long)(res) >= (unsigned long)(-125)) { \
200 return (type) (res); \
203 /* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
204 #define _syscall0(type,name) \
208 __asm__ volatile ("int $0x80" \
210 : "0" (__NR_##name)); \
211 __syscall_return(type,__res); \
214 #define _syscall1(type,name,type1,arg1) \
215 type name(type1 arg1) \
218 __asm__ volatile ("int $0x80" \
220 : "0" (__NR_##name),"b" ((long)(arg1))); \
221 __syscall_return(type,__res); \
224 #define _syscall2(type,name,type1,arg1,type2,arg2) \
225 type name(type1 arg1,type2 arg2) \
228 __asm__ volatile ("int $0x80" \
230 : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2))); \
231 __syscall_return(type,__res); \
234 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
235 type name(type1 arg1,type2 arg2,type3 arg3) \
238 __asm__ volatile ("int $0x80" \
240 : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
241 "d" ((long)(arg3))); \
242 __syscall_return(type,__res); \
245 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
246 type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
249 __asm__ volatile ("int $0x80" \
251 : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
252 "d" ((long)(arg3)),"S" ((long)(arg4))); \
253 __syscall_return(type,__res); \
256 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
258 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
261 __asm__ volatile ("int $0x80" \
263 : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
264 "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5))); \
265 __syscall_return(type,__res); \
268 #ifdef __KERNEL_SYSCALLS__
271 * we need this inline - forking from kernel space will result
272 * in NO COPY ON WRITE (!!!), until an execve is executed. This
273 * is no problem, but for the stack. This is handled by not letting
274 * main() use the stack at all after fork(). Thus, no function
275 * calls - which means inline code for fork too, as otherwise we
276 * would use the stack upon exit from 'fork()'.
278 * Actually only pause and fork are needed inline, so that there
279 * won't be any messing with the stack from main(), but we define
282 #define __NR__exit __NR_exit
283 static inline _syscall0(int,idle
)
284 static inline _syscall0(int,fork
)
285 static inline _syscall2(int,clone
,unsigned long,flags
,char *,esp
)
286 static inline _syscall0(int,pause
)
287 static inline _syscall1(int,setup
,int,magic
)
288 static inline _syscall0(int,sync
)
289 static inline _syscall0(pid_t
,setsid
)
290 static inline _syscall3(int,write
,int,fd
,const char *,buf
,off_t
,count
)
291 static inline _syscall3(int,read
,int,fd
,char *,buf
,off_t
,count
)
292 static inline _syscall3(off_t
,lseek
,int,fd
,off_t
,offset
,int,count
)
293 static inline _syscall1(int,dup
,int,fd
)
294 static inline _syscall3(int,execve
,const char *,file
,char **,argv
,char **,envp
)
295 static inline _syscall3(int,open
,const char *,file
,int,flag
,int,mode
)
296 static inline _syscall1(int,close
,int,fd
)
297 static inline _syscall1(int,_exit
,int,exitcode
)
298 static inline _syscall3(pid_t
,waitpid
,pid_t
,pid
,int *,wait_stat
,int,options
)
300 static inline pid_t
wait(int * wait_stat
)
302 return waitpid(-1,wait_stat
,0);
306 * This is the mechanism for creating a new kernel thread.
308 * NOTE! Only a kernel-only process(ie the swapper or direct descendants
309 * who haven't done an "execve()") should use this: it will work within
310 * a system call from a "real" process, but the process memory space will
311 * not be free'd until both the parent and the child have exited.
313 static inline pid_t
kernel_thread(int (*fn
)(void *), void * arg
, unsigned long flags
)
317 __asm__
__volatile__(
318 "movl %%esp,%%esi\n\t"
319 "int $0x80\n\t" /* Linux/i386 system call */
320 "cmpl %%esp,%%esi\n\t" /* child or parent? */
321 "je 1f\n\t" /* parent - jump */
322 "pushl %3\n\t" /* push argument */
323 "call *%4\n\t" /* call fn */
324 "movl %2,%0\n\t" /* exit */
328 :"0" (__NR_clone
), "i" (__NR_exit
),
330 "b" (flags
| CLONE_VM
)
337 #endif /* _ASM_I386_UNISTD_H_ */