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Commit | Line | Data |
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a1eaacb1 | 1 | '\" t |
c11b1abf | 2 | .\" Copyright (C) 2007 Michael Kerrisk <mtk.manpages@gmail.com> |
09de4bf1 MK |
3 | .\" with some input from Stepan Kasal <kasal@ucw.cz> |
4 | .\" | |
5 | .\" Some content retained from an earlier version of this page: | |
fea681da MK |
6 | .\" Copyright (C) 1998 Andries Brouwer (aeb@cwi.nl) |
7 | .\" Modifications for 2.2 and 2.4 Copyright (C) 2002 Ian Redfern | |
8 | .\" <redferni@logica.com> | |
9 | .\" | |
5fbde956 | 10 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft |
fea681da | 11 | .\" |
4c1c5274 | 12 | .TH syscalls 2 (date) "Linux man-pages (unreleased)" |
fea681da | 13 | .SH NAME |
09de4bf1 | 14 | syscalls \- Linux system calls |
fea681da | 15 | .SH SYNOPSIS |
c7db92b9 | 16 | .nf |
09de4bf1 | 17 | Linux system calls. |
c7db92b9 | 18 | .fi |
fea681da MK |
19 | .SH DESCRIPTION |
20 | The system call is the fundamental interface between an application | |
c13182ef | 21 | and the Linux kernel. |
7d50a840 MK |
22 | .SS System calls and library wrapper functions |
23 | System calls are generally not invoked directly, | |
61d7d93c MK |
24 | but rather via wrapper functions in glibc (or perhaps some other library). |
25 | For details of direct invocation of a system call, see | |
26 | .BR intro (2). | |
7d50a840 MK |
27 | Often, but not always, the name of the wrapper function is the same |
28 | as the name of the system call that it invokes. | |
29 | For example, glibc contains a function | |
d82f9311 ES |
30 | .BR chdir () |
31 | which invokes the underlying "chdir" system call. | |
c6d039a3 | 32 | .P |
7d50a840 | 33 | Often the glibc wrapper function is quite thin, doing little work |
c8bd05f9 MK |
34 | other than copying arguments to the right registers |
35 | before invoking the system call, | |
36 | and then setting | |
37 | .I errno | |
38 | appropriately after the system call has returned. | |
39 | (These are the same steps that are performed by | |
40 | .BR syscall (2), | |
41 | which can be used to invoke system calls | |
42 | for which no wrapper function is provided.) | |
43 | Note: system calls indicate a failure by returning a negative error | |
78319089 ES |
44 | number to the caller on architectures without a separate error register/flag, |
45 | as noted in | |
46 | .BR syscall (2); | |
c8bd05f9 MK |
47 | when this happens, |
48 | the wrapper function negates the returned error number | |
49 | (to make it positive), copies it to | |
50 | .IR errno , | |
51 | and returns \-1 to the caller of the wrapper. | |
c6d039a3 | 52 | .P |
7d50a840 MK |
53 | Sometimes, however, the wrapper function does some extra work |
54 | before invoking the system call. | |
55 | For example, nowadays there are (for reasons described below) two | |
56 | related system calls, | |
57 | .BR truncate (2) | |
58 | and | |
59 | .BR truncate64 (2), | |
60 | and the glibc | |
61 | .BR truncate () | |
61d7d93c MK |
62 | wrapper function checks which of those system calls |
63 | are provided by the kernel and determines which should be employed. | |
7d50a840 | 64 | .SS System call list |
1ce7088e | 65 | Below is a list of the Linux system calls. |
09de4bf1 MK |
66 | In the list, the |
67 | .I Kernel | |
68 | column indicates the kernel version | |
69 | for those system calls that were new in Linux 2.2, | |
70 | or have appeared since that kernel version. | |
71 | Note the following points: | |
cdede5cd | 72 | .IP \[bu] 3 |
09de4bf1 | 73 | Where no kernel version is indicated, |
b324e17d | 74 | the system call appeared in Linux 1.0 or earlier. |
cdede5cd | 75 | .IP \[bu] |
dc2f5549 | 76 | Where a system call is marked "1.2" |
b324e17d | 77 | this means the system call probably appeared in a Linux 1.1.x kernel version, |
dc2f5549 | 78 | and first appeared in a stable kernel with 1.2. |
43fa7ba5 AC |
79 | (Development of the Linux 1.2 kernel was initiated from a branch of |
80 | Linux 1.0.6 via the Linux 1.1.x unstable kernel series.) | |
cdede5cd | 81 | .IP \[bu] |
dc2f5549 | 82 | Where a system call is marked "2.0" |
b324e17d AC |
83 | this means the system call probably appeared in a Linux 1.3.x kernel version, |
84 | and first appeared in a stable kernel with Linux 2.0. | |
85 | (Development of the Linux 2.0 kernel was initiated from a branch of | |
86 | Linux 1.2.x, somewhere around Linux 1.2.10, | |
87 | via the Linux 1.3.x unstable kernel series.) | |
88 | .\" Was Linux 2.0 started from a branch of Linux 1.2.10? | |
d6ce4960 | 89 | .\" At least from the timestamps of the tarballs of |
b324e17d | 90 | .\" of Linux 1.2.10 and Linux 1.3.0, that's how it looks, but in |
e0bf9127 | 91 | .\" fact the diff doesn't seem very clear, the |
b324e17d AC |
92 | .\" Linux 1.3.0 .tar.bz is much bigger (2.0 MB) than the |
93 | .\" Linux 1.2.10 .tar.bz2 (1.8 MB), and AEB points out the | |
94 | .\" timestamps of some files in Linux 1.3.0 seem to be older | |
95 | .\" than those in Linux 1.2.10. All of this suggests | |
d6ce4960 | 96 | .\" that there might not have been a clean branch point. |
cdede5cd | 97 | .IP \[bu] |
09de4bf1 | 98 | Where a system call is marked "2.2" |
b324e17d AC |
99 | this means the system call probably appeared in a Linux 2.1.x kernel version, |
100 | and first appeared in a stable kernel with Linux 2.2.0. | |
43fa7ba5 | 101 | (Development of the Linux 2.2 kernel was initiated from a branch of |
b324e17d | 102 | Linux 2.0.21 via the Linux 2.1.x unstable kernel series.) |
cdede5cd | 103 | .IP \[bu] |
09de4bf1 | 104 | Where a system call is marked "2.4" |
b324e17d AC |
105 | this means the system call probably appeared in a Linux 2.3.x kernel version, |
106 | and first appeared in a stable kernel with Linux 2.4.0. | |
107 | (Development of the Linux 2.4 kernel was initiated from a branch of | |
108 | Linux 2.2.8 via the Linux 2.3.x unstable kernel series.) | |
cdede5cd | 109 | .IP \[bu] |
09de4bf1 | 110 | Where a system call is marked "2.6" |
b324e17d AC |
111 | this means the system call probably appeared in a Linux 2.5.x kernel version, |
112 | and first appeared in a stable kernel with Linux 2.6.0. | |
113 | (Development of Linux 2.6 was initiated from a branch | |
114 | of Linux 2.4.15 via the Linux 2.5.x unstable kernel series.) | |
cdede5cd | 115 | .IP \[bu] |
b324e17d AC |
116 | Starting with Linux 2.6.0, the development model changed, |
117 | and new system calls may appear in each Linux 2.6.x release. | |
f9e4d811 MK |
118 | In this case, the exact version number where the system call appeared |
119 | is shown. | |
b324e17d AC |
120 | This convention continues with the Linux 3.x kernel series, |
121 | which followed on from Linux 2.6.39; and the Linux 4.x kernel series, | |
122 | which followed on from Linux 3.19; and the Linux 5.x kernel series, | |
1b65d56c AC |
123 | which followed on from Linux 4.20; and the Linux 6.x kernel series, |
124 | which followed on from Linux 5.19. | |
cdede5cd | 125 | .IP \[bu] |
f9e4d811 MK |
126 | In some cases, a system call was added to a stable kernel |
127 | series after it branched from the previous stable kernel | |
128 | series, and then backported into the earlier stable kernel series. | |
b324e17d AC |
129 | For example some system calls that appeared in Linux 2.6.x were also backported |
130 | into a Linux 2.4.x release after Linux 2.4.15. | |
f9e4d811 | 131 | When this is so, the version where the system call appeared |
09de4bf1 | 132 | in both of the major kernel series is listed. |
c6d039a3 | 133 | .P |
b324e17d | 134 | The list of system calls that are available as at Linux 5.14 |
09de4bf1 | 135 | (or in a few cases only on older kernels) is as follows: |
24347d22 | 136 | .P |
09de4bf1 MK |
137 | .\" |
138 | .\" Looking at scripts/checksyscalls.sh in the kernel source is | |
929f1ff7 | 139 | .\" instructive about x86 specifics. |
09de4bf1 MK |
140 | .\" |
141 | .TS | |
24347d22 BR |
142 | Lb Lb Lb |
143 | L2 L L. | |
144 | System call Kernel Notes | |
145 | _ | |
dc2f5549 | 146 | \fB_llseek\fP(2) 1.2 |
8717e79e | 147 | \fB_newselect\fP(2) 2.0 |
f1004656 | 148 | \fB_sysctl\fP(2) 2.0 Removed in 5.5 |
30e3e116 MK |
149 | \fBaccept\fP(2) 2.0 T{ |
150 | See notes on \fBsocketcall\fP(2) | |
151 | T} | |
53e819d0 | 152 | \fBaccept4\fP(2) 2.6.28 |
8717e79e MK |
153 | \fBaccess\fP(2) 1.0 |
154 | \fBacct\fP(2) 1.0 | |
5685b18c | 155 | \fBadd_key\fP(2) 2.6.10 |
8717e79e MK |
156 | \fBadjtimex\fP(2) 1.0 |
157 | \fBalarm\fP(2) 1.0 | |
f9e4d811 | 158 | \fBalloc_hugepages\fP(2) 2.5.36 Removed in 2.5.44 |
e07c81fe ES |
159 | .\" 4adeefe161a74369e44cc8e663f240ece0470dc3 |
160 | \fBarc_gettls\fP(2) 3.9 ARC only | |
161 | \fBarc_settls\fP(2) 3.9 ARC only | |
162 | .\" 91e040a79df73d371f70792f30380d4e44805250 | |
59a4d9b3 | 163 | \fBarc_usr_cmpxchg\fP(2) 4.9 ARC only |
e07c81fe | 164 | .\" x86: 79170fda313ed5be2394f87aa2a00d597f8ed4a1 |
30e3e116 MK |
165 | \fBarch_prctl\fP(2) 2.6 T{ |
166 | x86_64, x86 since 4.12 | |
167 | T} | |
e07c81fe ES |
168 | .\" 9674cdc74d63f346870943ef966a034f8c71ee57 |
169 | \fBatomic_barrier\fP(2) 2.6.34 m68k only | |
170 | \fBatomic_cmpxchg_32\fP(2) 2.6.34 m68k only | |
8717e79e | 171 | \fBbdflush\fP(2) 1.2 T{ |
b6bc918e | 172 | Deprecated (does nothing) |
b6bc918e | 173 | since 2.6 |
56f2caff | 174 | T} |
30e3e116 MK |
175 | \fBbind\fP(2) 2.0 T{ |
176 | See notes on \fBsocketcall\fP(2) | |
177 | T} | |
a3708b57 | 178 | \fBbpf\fP(2) 3.18 |
8717e79e | 179 | \fBbrk\fP(2) 1.0 |
e07c81fe ES |
180 | \fBbreakpoint\fP(2) 2.2 T{ |
181 | ARM OABI only, defined with | |
182 | \fB__ARM_NR\fP prefix | |
183 | T} | |
929f1ff7 | 184 | \fBcacheflush\fP(2) 1.2 Not on x86 |
09de4bf1 MK |
185 | \fBcapget\fP(2) 2.2 |
186 | \fBcapset\fP(2) 2.2 | |
8717e79e MK |
187 | \fBchdir\fP(2) 1.0 |
188 | \fBchmod\fP(2) 1.0 | |
189 | \fBchown\fP(2) 2.2 T{ | |
b6bc918e | 190 | See \fBchown\fP(2) for |
b6bc918e | 191 | version details |
8717e79e | 192 | T} |
09de4bf1 | 193 | \fBchown32\fP(2) 2.4 |
8717e79e | 194 | \fBchroot\fP(2) 1.0 |
b9cad55b | 195 | \fBclock_adjtime\fP(2) 2.6.39 |
09de4bf1 MK |
196 | \fBclock_getres\fP(2) 2.6 |
197 | \fBclock_gettime\fP(2) 2.6 | |
198 | \fBclock_nanosleep\fP(2) 2.6 | |
199 | \fBclock_settime\fP(2) 2.6 | |
e07c81fe | 200 | \fBclone2\fP(2) 2.4 IA-64 only |
8717e79e | 201 | \fBclone\fP(2) 1.0 |
7fd5cf65 | 202 | \fBclone3\fP(2) 5.3 |
8717e79e | 203 | \fBclose\fP(2) 1.0 |
373bd6e2 | 204 | \fBclose_range\fP(2) 5.9 |
e07c81fe ES |
205 | .\" .\" dcef1f634657dabe7905af3ccda12cf7f0b6fcc1 |
206 | .\" .\" cc20d42986d5807cbe4f5c7c8e3dab2e59ea0db3 | |
207 | .\" .\" db695c0509d6ec9046ee5e4c520a19fa17d9fce2 | |
208 | .\" \fBcmpxchg\fP(2) 2.6.12 T{ | |
209 | .\" ARM, syscall constant never was | |
ba2c4752 | 210 | .\" exposed to user space, in-kernel |
e07c81fe | 211 | .\" definition had \fB__ARM_NR\fP prefix, |
e07c81fe ES |
212 | .\" removed in 4.4 |
213 | .\" T} | |
214 | .\" 867e359b97c970a60626d5d76bbe2a8fadbf38fb | |
215 | .\" bb9d812643d8a121df7d614a2b9c60193a92deb0 | |
30e3e116 MK |
216 | \fBconnect\fP(2) 2.0 T{ |
217 | See notes on \fBsocketcall\fP(2) | |
218 | T} | |
a5918afa | 219 | \fBcopy_file_range\fP(2) 4.5 |
8717e79e | 220 | \fBcreat\fP(2) 1.0 |
a0bd8202 | 221 | \fBcreate_module\fP(2) 1.0 Removed in 2.6 |
8717e79e | 222 | \fBdelete_module\fP(2) 1.0 |
e07c81fe ES |
223 | .\" 1394f03221790a988afc3e4b3cb79f2e477246a9 |
224 | .\" 4ba66a9760722ccbb691b8f7116cad2f791cca7b | |
8717e79e MK |
225 | \fBdup\fP(2) 1.0 |
226 | \fBdup2\fP(2) 1.0 | |
eb153420 | 227 | \fBdup3\fP(2) 2.6.27 |
09de4bf1 | 228 | \fBepoll_create\fP(2) 2.6 |
eb153420 | 229 | \fBepoll_create1\fP(2) 2.6.27 |
09de4bf1 MK |
230 | \fBepoll_ctl\fP(2) 2.6 |
231 | \fBepoll_pwait\fP(2) 2.6.19 | |
3c881315 | 232 | \fBepoll_pwait2\fP(2) 5.11 |
09de4bf1 MK |
233 | \fBepoll_wait\fP(2) 2.6 |
234 | \fBeventfd\fP(2) 2.6.22 | |
eb153420 | 235 | \fBeventfd2\fP(2) 2.6.27 |
e07c81fe | 236 | \fBexecv\fP(2) 2.0 T{ |
d0a395a2 | 237 | SPARC/SPARC64 only, for |
69b5b8df | 238 | compatibility with SunOS |
e07c81fe | 239 | T} |
8717e79e | 240 | \fBexecve\fP(2) 1.0 |
7c244c53 | 241 | \fBexecveat\fP(2) 3.19 |
8717e79e | 242 | \fBexit\fP(2) 1.0 |
30fa088c | 243 | \fBexit_group\fP(2) 2.6 |
09de4bf1 | 244 | \fBfaccessat\fP(2) 2.6.16 |
00714623 | 245 | \fBfaccessat2\fP(2) 5.8 |
7d50a840 MK |
246 | \fBfadvise64\fP(2) 2.6 |
247 | .\" Implements \fBposix_fadvise\fP(2) | |
248 | \fBfadvise64_64\fP(2) 2.6 | |
6397da8c | 249 | \fBfallocate\fP(2) 2.6.23 |
3610ae93 MK |
250 | \fBfanotify_init\fP(2) 2.6.37 |
251 | \fBfanotify_mark\fP(2) 2.6.37 | |
252 | .\" The fanotify calls were added in Linux 2.6.36, | |
253 | .\" but disabled while the API was finalized. | |
8717e79e MK |
254 | \fBfchdir\fP(2) 1.0 |
255 | \fBfchmod\fP(2) 1.0 | |
09de4bf1 | 256 | \fBfchmodat\fP(2) 2.6.16 |
8717e79e | 257 | \fBfchown\fP(2) 1.0 |
09de4bf1 MK |
258 | \fBfchown32\fP(2) 2.4 |
259 | \fBfchownat\fP(2) 2.6.16 | |
8717e79e | 260 | \fBfcntl\fP(2) 1.0 |
09de4bf1 | 261 | \fBfcntl64\fP(2) 2.4 |
8717e79e | 262 | \fBfdatasync\fP(2) 2.0 |
09de4bf1 | 263 | \fBfgetxattr\fP(2) 2.6; 2.4.18 |
ecbb4bb7 | 264 | \fBfinit_module\fP(2) 3.8 |
09de4bf1 | 265 | \fBflistxattr\fP(2) 2.6; 2.4.18 |
dc2f5549 | 266 | \fBflock\fP(2) 2.0 |
8717e79e | 267 | \fBfork\fP(2) 1.0 |
f9e4d811 | 268 | \fBfree_hugepages\fP(2) 2.5.36 Removed in 2.5.44 |
09de4bf1 | 269 | \fBfremovexattr\fP(2) 2.6; 2.4.18 |
519f86ca | 270 | \fBfsconfig\fP(2) 5.2 |
09de4bf1 | 271 | \fBfsetxattr\fP(2) 2.6; 2.4.18 |
519f86ca MK |
272 | \fBfsmount\fP(2) 5.2 |
273 | \fBfsopen\fP(2) 5.2 | |
274 | \fBfspick\fP(2) 5.2 | |
8717e79e | 275 | \fBfstat\fP(2) 1.0 |
09de4bf1 | 276 | \fBfstat64\fP(2) 2.4 |
f6b8bc07 | 277 | \fBfstatat64\fP(2) 2.6.16 |
8717e79e | 278 | \fBfstatfs\fP(2) 1.0 |
09de4bf1 | 279 | \fBfstatfs64\fP(2) 2.6 |
aeddd876 | 280 | \fBfsync\fP(2) 1.0 |
8717e79e | 281 | \fBftruncate\fP(2) 1.0 |
09de4bf1 | 282 | \fBftruncate64\fP(2) 2.4 |
30fa088c | 283 | \fBfutex\fP(2) 2.6 |
09de4bf1 | 284 | \fBfutimesat\fP(2) 2.6.16 |
4c68ac9e | 285 | \fBget_kernel_syms\fP(2) 1.0 Removed in 2.6 |
09de4bf1 MK |
286 | \fBget_mempolicy\fP(2) 2.6.6 |
287 | \fBget_robust_list\fP(2) 2.6.17 | |
30fa088c | 288 | \fBget_thread_area\fP(2) 2.6 |
e07c81fe | 289 | .\" 8fcd6c45f5a65621ec809b7866a3623e9a01d4ed |
d0a395a2 MK |
290 | \fBget_tls\fP(2) 4.15 T{ |
291 | ARM OABI only, has | |
d0a395a2 MK |
292 | \fB__ARM_NR\fP prefix |
293 | T} | |
09de4bf1 MK |
294 | \fBgetcpu\fP(2) 2.6.19 |
295 | \fBgetcwd\fP(2) 2.2 | |
dc2f5549 | 296 | \fBgetdents\fP(2) 2.0 |
09de4bf1 | 297 | \fBgetdents64\fP(2) 2.4 |
e07c81fe ES |
298 | .\" parisc: 863722e856e64dae0e252b6bb546737c6c5626ce |
299 | \fBgetdomainname\fP(2) 2.2 T{ | |
300 | SPARC, SPARC64; available | |
e07c81fe | 301 | as \fBosf_getdomainname\fP(2) |
e07c81fe ES |
302 | on Alpha since Linux 2.0 |
303 | T} | |
d0a395a2 | 304 | .\" ec98c6b9b47df6df1c1fa6cf3d427414f8c2cf16 |
e07c81fe ES |
305 | \fBgetdtablesize\fP(2) 2.0 T{ |
306 | SPARC (removed in 2.6.26), | |
ea09dfe6 | 307 | available on Alpha as |
d0a395a2 | 308 | \fBosf_getdtablesize\fP(2) |
e07c81fe | 309 | T} |
8717e79e | 310 | \fBgetegid\fP(2) 1.0 |
09de4bf1 | 311 | \fBgetegid32\fP(2) 2.4 |
8717e79e | 312 | \fBgeteuid\fP(2) 1.0 |
09de4bf1 | 313 | \fBgeteuid32\fP(2) 2.4 |
8717e79e | 314 | \fBgetgid\fP(2) 1.0 |
09de4bf1 | 315 | \fBgetgid32\fP(2) 2.4 |
8717e79e | 316 | \fBgetgroups\fP(2) 1.0 |
09de4bf1 | 317 | \fBgetgroups32\fP(2) 2.4 |
e07c81fe | 318 | .\" SPARC removal: ec98c6b9b47df6df1c1fa6cf3d427414f8c2cf16 |
d0a395a2 MK |
319 | \fBgethostname\fP(2) 2.0 T{ |
320 | Alpha, was available on | |
d0a395a2 MK |
321 | SPARC up to Linux 2.6.26 |
322 | T} | |
8717e79e | 323 | \fBgetitimer\fP(2) 1.0 |
30e3e116 MK |
324 | \fBgetpeername\fP(2) 2.0 T{ |
325 | See notes on \fBsocketcall\fP(2) | |
326 | T} | |
c1e10426 EH |
327 | \fBgetpagesize\fP(2) 2.0 T{ |
328 | Alpha, SPARC/SPARC64 only | |
329 | T} | |
8717e79e MK |
330 | \fBgetpgid\fP(2) 1.0 |
331 | \fBgetpgrp\fP(2) 1.0 | |
332 | \fBgetpid\fP(2) 1.0 | |
333 | \fBgetppid\fP(2) 1.0 | |
334 | \fBgetpriority\fP(2) 1.0 | |
1d94912f | 335 | \fBgetrandom\fP(2) 3.17 |
09de4bf1 MK |
336 | \fBgetresgid\fP(2) 2.2 |
337 | \fBgetresgid32\fP(2) 2.4 | |
338 | \fBgetresuid\fP(2) 2.2 | |
339 | \fBgetresuid32\fP(2) 2.4 | |
8717e79e MK |
340 | \fBgetrlimit\fP(2) 1.0 |
341 | \fBgetrusage\fP(2) 1.0 | |
dc2f5549 | 342 | \fBgetsid\fP(2) 2.0 |
30e3e116 MK |
343 | \fBgetsockname\fP(2) 2.0 T{ |
344 | See notes on \fBsocketcall\fP(2) | |
345 | T} | |
346 | \fBgetsockopt\fP(2) 2.0 T{ | |
347 | See notes on \fBsocketcall\fP(2) | |
348 | T} | |
09de4bf1 | 349 | \fBgettid\fP(2) 2.4.11 |
8717e79e MK |
350 | \fBgettimeofday\fP(2) 1.0 |
351 | \fBgetuid\fP(2) 1.0 | |
09de4bf1 | 352 | \fBgetuid32\fP(2) 2.4 |
30e3e116 MK |
353 | \fBgetunwind\fP(2) 2.4.8 T{ |
354 | IA-64 only; deprecated | |
355 | T} | |
09de4bf1 | 356 | \fBgetxattr\fP(2) 2.6; 2.4.18 |
30e3e116 MK |
357 | \fBgetxgid\fP(2) 2.0 T{ |
358 | Alpha only; see NOTES | |
359 | T} | |
360 | \fBgetxpid\fP(2) 2.0 T{ | |
361 | Alpha only; see NOTES | |
362 | T} | |
363 | \fBgetxuid\fP(2) 2.0 T{ | |
364 | Alpha only; see NOTES | |
365 | T} | |
8717e79e | 366 | \fBinit_module\fP(2) 1.0 |
09de4bf1 MK |
367 | \fBinotify_add_watch\fP(2) 2.6.13 |
368 | \fBinotify_init\fP(2) 2.6.13 | |
eb153420 | 369 | \fBinotify_init1\fP(2) 2.6.27 |
09de4bf1 | 370 | \fBinotify_rm_watch\fP(2) 2.6.13 |
30fa088c MK |
371 | \fBio_cancel\fP(2) 2.6 |
372 | \fBio_destroy\fP(2) 2.6 | |
373 | \fBio_getevents\fP(2) 2.6 | |
6a1634dc | 374 | \fBio_pgetevents\fP(2) 4.18 |
30fa088c MK |
375 | \fBio_setup\fP(2) 2.6 |
376 | \fBio_submit\fP(2) 2.6 | |
6d2c81ea MK |
377 | \fBio_uring_enter\fP(2) 5.1 |
378 | \fBio_uring_register\fP(2) 5.1 | |
379 | \fBio_uring_setup\fP(2) 5.1 | |
8717e79e MK |
380 | \fBioctl\fP(2) 1.0 |
381 | \fBioperm\fP(2) 1.0 | |
382 | \fBiopl\fP(2) 1.0 | |
09de4bf1 MK |
383 | \fBioprio_get\fP(2) 2.6.13 |
384 | \fBioprio_set\fP(2) 2.6.13 | |
8717e79e | 385 | \fBipc\fP(2) 1.0 |
7d50a840 | 386 | .\" Implements System V IPC calls |
8eec4a23 | 387 | \fBkcmp\fP(2) 3.5 |
e07c81fe | 388 | \fBkern_features\fP(2) 3.7 SPARC64 only |
bea08fec | 389 | .\" FIXME . document kern_features(): |
38291c52 | 390 | .\" commit 517ffce4e1a03aea979fe3a18a3dd1761a24fafb |
1d94912f | 391 | \fBkexec_file_load\fP(2) 3.17 |
3ed3a507 MK |
392 | \fBkexec_load\fP(2) 2.6.13 |
393 | .\" The entry in the syscall table was reserved starting in 2.6.7 | |
7d50a840 | 394 | .\" Was named sys_kexec_load() from 2.6.7 to 2.6.16 |
5685b18c | 395 | \fBkeyctl\fP(2) 2.6.10 |
8717e79e | 396 | \fBkill\fP(2) 1.0 |
c2d505de MK |
397 | \fBlandlock_add_rule\fP(2) 5.13 |
398 | \fBlandlock_create_ruleset\fP(2) 5.13 | |
399 | \fBlandlock_restrict_self\fP(2) 5.13 | |
8717e79e | 400 | \fBlchown\fP(2) 1.0 T{ |
b6bc918e | 401 | See \fBchown\fP(2) for |
b6bc918e | 402 | version details |
8717e79e | 403 | T} |
09de4bf1 MK |
404 | \fBlchown32\fP(2) 2.4 |
405 | \fBlgetxattr\fP(2) 2.6; 2.4.18 | |
8717e79e | 406 | \fBlink\fP(2) 1.0 |
09de4bf1 | 407 | \fBlinkat\fP(2) 2.6.16 |
30e3e116 MK |
408 | \fBlisten\fP(2) 2.0 T{ |
409 | See notes on \fBsocketcall\fP(2) | |
410 | T} | |
09de4bf1 MK |
411 | \fBlistxattr\fP(2) 2.6; 2.4.18 |
412 | \fBllistxattr\fP(2) 2.6; 2.4.18 | |
09de4bf1 MK |
413 | \fBlookup_dcookie\fP(2) 2.6 |
414 | \fBlremovexattr\fP(2) 2.6; 2.4.18 | |
8717e79e | 415 | \fBlseek\fP(2) 1.0 |
09de4bf1 | 416 | \fBlsetxattr\fP(2) 2.6; 2.4.18 |
8717e79e | 417 | \fBlstat\fP(2) 1.0 |
09de4bf1 MK |
418 | \fBlstat64\fP(2) 2.4 |
419 | \fBmadvise\fP(2) 2.4 | |
09de4bf1 | 420 | \fBmbind\fP(2) 2.6.6 |
e07c81fe ES |
421 | \fBmemory_ordering\fP(2) 2.2 SPARC64 only |
422 | .\" 26025bbfbba33a9425be1b89eccb4664ea4c17b6 | |
423 | .\" bb6fb6dfcc17cddac11ac295861f7608194447a7 | |
7e086953 | 424 | \fBmembarrier\fP(2) 3.17 |
1d94912f | 425 | \fBmemfd_create\fP(2) 3.17 |
fabb1a2a | 426 | \fBmemfd_secret\fP(2) 5.14 |
09de4bf1 MK |
427 | \fBmigrate_pages\fP(2) 2.6.16 |
428 | \fBmincore\fP(2) 2.4 | |
8717e79e | 429 | \fBmkdir\fP(2) 1.0 |
09de4bf1 | 430 | \fBmkdirat\fP(2) 2.6.16 |
8717e79e | 431 | \fBmknod\fP(2) 1.0 |
09de4bf1 | 432 | \fBmknodat\fP(2) 2.6.16 |
8717e79e | 433 | \fBmlock\fP(2) 2.0 |
73ea29aa | 434 | \fBmlock2\fP(2) 4.4 |
8717e79e MK |
435 | \fBmlockall\fP(2) 2.0 |
436 | \fBmmap\fP(2) 1.0 | |
09de4bf1 | 437 | \fBmmap2\fP(2) 2.4 |
8717e79e MK |
438 | \fBmodify_ldt\fP(2) 1.0 |
439 | \fBmount\fP(2) 1.0 | |
519f86ca | 440 | \fBmove_mount\fP(2) 5.2 |
09de4bf1 | 441 | \fBmove_pages\fP(2) 2.6.18 |
8717e79e | 442 | \fBmprotect\fP(2) 1.0 |
7d50a840 MK |
443 | \fBmq_getsetattr\fP(2) 2.6.6 |
444 | .\" Implements \fBmq_getattr\fP(3) and \fBmq_setattr\fP(3) | |
09de4bf1 MK |
445 | \fBmq_notify\fP(2) 2.6.6 |
446 | \fBmq_open\fP(2) 2.6.6 | |
447 | \fBmq_timedreceive\fP(2) 2.6.6 | |
448 | \fBmq_timedsend\fP(2) 2.6.6 | |
8717e79e | 449 | \fBmq_unlink\fP(2) 2.6.6 |
dc2f5549 | 450 | \fBmremap\fP(2) 2.0 |
30e3e116 MK |
451 | \fBmsgctl\fP(2) 2.0 T{ |
452 | See notes on \fBipc\fP(2) | |
453 | T} | |
454 | \fBmsgget\fP(2) 2.0 T{ | |
455 | See notes on \fBipc\fP(2) | |
456 | T} | |
457 | \fBmsgrcv\fP(2) 2.0 T{ | |
458 | See notes on \fBipc\fP(2) | |
459 | T} | |
460 | \fBmsgsnd\fP(2) 2.0 T{ | |
461 | See notes on \fBipc\fP(2) | |
462 | T} | |
dc2f5549 | 463 | \fBmsync\fP(2) 2.0 |
af4c9a82 MK |
464 | .\" \fBmultiplexer\fP(2) ?? __NR_multiplexer reserved on |
465 | .\" PowerPC, but unimplemented? | |
8717e79e MK |
466 | \fBmunlock\fP(2) 2.0 |
467 | \fBmunlockall\fP(2) 2.0 | |
468 | \fBmunmap\fP(2) 1.0 | |
b9cad55b | 469 | \fBname_to_handle_at\fP(2) 2.6.39 |
dc2f5549 | 470 | \fBnanosleep\fP(2) 2.0 |
e07c81fe | 471 | .\" 5590ff0d5528b60153c0b4e7b771472b5a95e297 |
64cdc974 BR |
472 | \fBnewfstatat\fP(2) 2.6.16 T{ |
473 | See \fBstat\fP(2) | |
474 | T} | |
18a97acf | 475 | \fBnfsservctl\fP(2) 2.2 Removed in 3.1 |
8717e79e | 476 | \fBnice\fP(2) 1.0 |
30e3e116 MK |
477 | \fBold_adjtimex\fP(2) 2.0 T{ |
478 | Alpha only; see NOTES | |
479 | T} | |
e07c81fe | 480 | \fBold_getrlimit\fP(2) 2.4 T{ |
d0a395a2 | 481 | Old variant of \fBgetrlimit\fP(2) |
d0a395a2 | 482 | that used a different value |
d0a395a2 | 483 | for \fBRLIM_INFINITY\fP |
e07c81fe | 484 | T} |
8717e79e MK |
485 | \fBoldfstat\fP(2) 1.0 |
486 | \fBoldlstat\fP(2) 1.0 | |
487 | \fBoldolduname\fP(2) 1.0 | |
488 | \fBoldstat\fP(2) 1.0 | |
d0a395a2 MK |
489 | \fBoldumount\fP(2) 2.4.116 T{ |
490 | Name of the old \fBumount\fP(2) | |
d0a395a2 MK |
491 | syscall on Alpha |
492 | T} | |
8717e79e MK |
493 | \fBolduname\fP(2) 1.0 |
494 | \fBopen\fP(2) 1.0 | |
b9cad55b | 495 | \fBopen_by_handle_at\fP(2) 2.6.39 |
519f86ca | 496 | \fBopen_tree\fP(2) 5.2 |
09de4bf1 | 497 | \fBopenat\fP(2) 2.6.16 |
2054c92a | 498 | \fBopenat2\fP(2) 5.6 |
e07c81fe | 499 | .\" 9d02a4283e9ce4e9ca11ff00615bdacdb0515a1a |
30e3e116 MK |
500 | \fBor1k_atomic\fP(2) 3.1 T{ |
501 | OpenRISC 1000 only | |
502 | T} | |
8717e79e | 503 | \fBpause\fP(2) 1.0 |
929f1ff7 MK |
504 | \fBpciconfig_iobase\fP(2) 2.2.15; 2.4 Not on x86 |
505 | .\" Alpha, PowerPC, ARM; not x86 | |
506 | \fBpciconfig_read\fP(2) 2.0.26; 2.2 Not on x86 | |
507 | .\" , PowerPC, ARM; not x86 | |
508 | \fBpciconfig_write\fP(2) 2.0.26; 2.2 Not on x86 | |
509 | .\" , PowerPC, ARM; not x86 | |
56f2caff | 510 | \fBperf_event_open\fP(2) 2.6.31 T{ |
dc0fac14 | 511 | Was perf_counter_open() in |
dc0fac14 | 512 | 2.6.31; renamed in 2.6.32 |
56f2caff | 513 | T} |
dc2f5549 | 514 | \fBpersonality\fP(2) 1.2 |
30e3e116 MK |
515 | \fBperfctr\fP(2) 2.2 T{ |
516 | SPARC only; removed in 2.6.34 | |
517 | T} | |
7ddff6a4 | 518 | .\" commit c7d5a0050773e98d1094eaa9f2a1a793fafac300 removed perfctr() |
eb2b1b99 | 519 | \fBperfmonctl\fP(2) 2.4 IA-64 only; removed in 5.10 |
2054c92a | 520 | \fBpidfd_getfd\fP(2) 5.6 |
6d2c81ea | 521 | \fBpidfd_send_signal\fP(2) 5.1 |
7fd5cf65 | 522 | \fBpidfd_open\fP(2) 5.3 |
8717e79e | 523 | \fBpipe\fP(2) 1.0 |
eb153420 | 524 | \fBpipe2\fP(2) 2.6.27 |
dc2f5549 | 525 | \fBpivot_root\fP(2) 2.4 |
6075e4eb MK |
526 | \fBpkey_alloc\fP(2) 4.8 |
527 | \fBpkey_free\fP(2) 4.8 | |
528 | \fBpkey_mprotect\fP(2) 4.8 | |
8717e79e | 529 | \fBpoll\fP(2) 2.0.36; 2.2 |
09de4bf1 MK |
530 | \fBppoll\fP(2) 2.6.16 |
531 | \fBprctl\fP(2) 2.2 | |
56f2caff | 532 | \fBpread64\fP(2) T{ |
b6bc918e | 533 | Added as "pread" in 2.2; |
b6bc918e | 534 | renamed "pread64" in 2.6 |
56f2caff | 535 | T} |
0877a26b | 536 | \fBpreadv\fP(2) 2.6.30 |
28520ed4 | 537 | \fBpreadv2\fP(2) 4.6 |
7b08c45b | 538 | \fBprlimit64\fP(2) 2.6.36 |
baa72cc3 | 539 | \fBprocess_madvise\fP(2) 5.10 |
f06f5014 DP |
540 | \fBprocess_vm_readv\fP(2) 3.2 |
541 | \fBprocess_vm_writev\fP(2) 3.2 | |
7d50a840 MK |
542 | \fBpselect6\fP(2) 2.6.16 |
543 | .\" Implements \fBpselect\fP(2) | |
8717e79e | 544 | \fBptrace\fP(2) 1.0 |
56f2caff | 545 | \fBpwrite64\fP(2) T{ |
b6bc918e | 546 | Added as "pwrite" in 2.2; |
b6bc918e | 547 | renamed "pwrite64" in 2.6 |
56f2caff | 548 | T} |
0877a26b | 549 | \fBpwritev\fP(2) 2.6.30 |
28520ed4 | 550 | \fBpwritev2\fP(2) 4.6 |
13f66890 | 551 | \fBquery_module\fP(2) 2.2 Removed in 2.6 |
8717e79e | 552 | \fBquotactl\fP(2) 1.0 |
9f275af1 | 553 | \fBquotactl_fd\fP(2) 5.14 |
8717e79e | 554 | \fBread\fP(2) 1.0 |
09de4bf1 | 555 | \fBreadahead\fP(2) 2.4.13 |
8717e79e | 556 | \fBreaddir\fP(2) 1.0 |
7d50a840 | 557 | .\" Supersedes \fBgetdents\fP(2) |
8717e79e | 558 | \fBreadlink\fP(2) 1.0 |
09de4bf1 | 559 | \fBreadlinkat\fP(2) 2.6.16 |
dc2f5549 | 560 | \fBreadv\fP(2) 2.0 |
8717e79e | 561 | \fBreboot\fP(2) 1.0 |
30e3e116 MK |
562 | \fBrecv\fP(2) 2.0 T{ |
563 | See notes on \fBsocketcall\fP(2) | |
564 | T} | |
565 | \fBrecvfrom\fP(2) 2.0 T{ | |
566 | See notes on \fBsocketcall\fP(2) | |
567 | T} | |
568 | \fBrecvmsg\fP(2) 2.0 T{ | |
569 | See notes on \fBsocketcall\fP(2) | |
570 | T} | |
285bf67e | 571 | \fBrecvmmsg\fP(2) 2.6.33 |
30e3e116 MK |
572 | \fBremap_file_pages\fP(2) 2.6 T{ |
573 | Deprecated since 3.16 | |
574 | T} | |
09de4bf1 | 575 | \fBremovexattr\fP(2) 2.6; 2.4.18 |
8717e79e | 576 | \fBrename\fP(2) 1.0 |
09de4bf1 | 577 | \fBrenameat\fP(2) 2.6.16 |
bf253d9b | 578 | \fBrenameat2\fP(2) 3.15 |
5685b18c | 579 | \fBrequest_key\fP(2) 2.6.10 |
09de4bf1 | 580 | \fBrestart_syscall\fP(2) 2.6 |
e07c81fe ES |
581 | .\" 921ebd8f2c081b3cf6c3b29ef4103eef3ff26054 |
582 | \fBriscv_flush_icache\fP(2) 4.15 RISC-V only | |
8717e79e | 583 | \fBrmdir\fP(2) 1.0 |
6a1634dc | 584 | \fBrseq\fP(2) 4.18 |
09de4bf1 MK |
585 | \fBrt_sigaction\fP(2) 2.2 |
586 | \fBrt_sigpending\fP(2) 2.2 | |
587 | \fBrt_sigprocmask\fP(2) 2.2 | |
7d50a840 | 588 | \fBrt_sigqueueinfo\fP(2) 2.2 |
09de4bf1 MK |
589 | \fBrt_sigreturn\fP(2) 2.2 |
590 | \fBrt_sigsuspend\fP(2) 2.2 | |
591 | \fBrt_sigtimedwait\fP(2) 2.2 | |
285bf67e | 592 | \fBrt_tgsigqueueinfo\fP(2) 2.6.31 |
30e3e116 MK |
593 | \fBrtas\fP(2) 2.6.2 T{ |
594 | PowerPC/PowerPC64 only | |
595 | T} | |
993d1ce3 | 596 | \fBs390_runtime_instr\fP(2) 3.7 s390 only |
80a74083 MK |
597 | \fBs390_pci_mmio_read\fP(2) 3.19 s390 only |
598 | \fBs390_pci_mmio_write\fP(2) 3.19 s390 only | |
ef741e2a | 599 | \fBs390_sthyi\fP(2) 4.15 s390 only |
605e9d07 | 600 | \fBs390_guarded_storage\fP(2) 4.12 s390 only |
d0a395a2 | 601 | \fBsched_get_affinity\fP(2) 2.6 T{ |
64fd7f58 BR |
602 | Name of |
603 | .BR \%sched_getaffinity (2) | |
d0a395a2 MK |
604 | on SPARC and SPARC64 |
605 | T} | |
dc2f5549 MK |
606 | \fBsched_get_priority_max\fP(2) 2.0 |
607 | \fBsched_get_priority_min\fP(2) 2.0 | |
30fa088c | 608 | \fBsched_getaffinity\fP(2) 2.6 |
70415818 | 609 | \fBsched_getattr\fP(2) 3.14 |
dc2f5549 MK |
610 | \fBsched_getparam\fP(2) 2.0 |
611 | \fBsched_getscheduler\fP(2) 2.0 | |
612 | \fBsched_rr_get_interval\fP(2) 2.0 | |
d0a395a2 | 613 | \fBsched_set_affinity\fP(2) 2.6 T{ |
64fd7f58 BR |
614 | Name of |
615 | .BR \%sched_setaffinity (2) | |
d0a395a2 MK |
616 | on SPARC and SPARC64 |
617 | T} | |
30fa088c | 618 | \fBsched_setaffinity\fP(2) 2.6 |
70415818 | 619 | \fBsched_setattr\fP(2) 3.14 |
dc2f5549 MK |
620 | \fBsched_setparam\fP(2) 2.0 |
621 | \fBsched_setscheduler\fP(2) 2.0 | |
622 | \fBsched_yield\fP(2) 2.0 | |
1d94912f | 623 | \fBseccomp\fP(2) 3.17 |
8717e79e | 624 | \fBselect\fP(2) 1.0 |
30e3e116 MK |
625 | \fBsemctl\fP(2) 2.0 T{ |
626 | See notes on \fBipc\fP(2) | |
627 | T} | |
628 | \fBsemget\fP(2) 2.0 T{ | |
629 | See notes on \fBipc\fP(2) | |
630 | T} | |
631 | \fBsemop\fP(2) 2.0 T{ | |
632 | See notes on \fBipc\fP(2) | |
633 | T} | |
09de4bf1 | 634 | \fBsemtimedop\fP(2) 2.6; 2.4.22 |
30e3e116 MK |
635 | \fBsend\fP(2) 2.0 T{ |
636 | See notes on \fBsocketcall\fP(2) | |
637 | T} | |
09de4bf1 MK |
638 | \fBsendfile\fP(2) 2.2 |
639 | \fBsendfile64\fP(2) 2.6; 2.4.19 | |
3e55b0bd | 640 | \fBsendmmsg\fP(2) 3.0 |
30e3e116 MK |
641 | \fBsendmsg\fP(2) 2.0 T{ |
642 | See notes on \fBsocketcall\fP(2) | |
643 | T} | |
644 | \fBsendto\fP(2) 2.0 T{ | |
645 | See notes on \fBsocketcall\fP(2) | |
646 | T} | |
09de4bf1 MK |
647 | \fBset_mempolicy\fP(2) 2.6.6 |
648 | \fBset_robust_list\fP(2) 2.6.17 | |
30fa088c | 649 | \fBset_thread_area\fP(2) 2.6 |
09de4bf1 | 650 | \fBset_tid_address\fP(2) 2.6 |
d0a395a2 MK |
651 | \fBset_tls\fP(2) 2.6.11 T{ |
652 | ARM OABI/EABI only (constant | |
d0a395a2 MK |
653 | has \fB__ARM_NR\fP prefix) |
654 | T} | |
a5819baa MK |
655 | .\" \fBsetaltroot\fP(2) 2.6.10 T{ |
656 | .\" Removed in 2.6.11, exposed one | |
657 | .\" of implementation details of | |
658 | .\" \fBpersonality\fP(2) (creating an | |
659 | .\" alternative root, precursor of | |
660 | .\" mount namespaces) to user space. | |
661 | .\" T} | |
9947a8d7 MK |
662 | .\" See http://lkml.org/lkml/2005/8/1/83 |
663 | .\" "[PATCH] remove sys_set_zone_reclaim()" | |
8717e79e | 664 | \fBsetdomainname\fP(2) 1.0 |
dc2f5549 | 665 | \fBsetfsgid\fP(2) 1.2 |
09de4bf1 | 666 | \fBsetfsgid32\fP(2) 2.4 |
dc2f5549 | 667 | \fBsetfsuid\fP(2) 1.2 |
09de4bf1 | 668 | \fBsetfsuid32\fP(2) 2.4 |
8717e79e | 669 | \fBsetgid\fP(2) 1.0 |
09de4bf1 | 670 | \fBsetgid32\fP(2) 2.4 |
8717e79e | 671 | \fBsetgroups\fP(2) 1.0 |
09de4bf1 | 672 | \fBsetgroups32\fP(2) 2.4 |
e07c81fe | 673 | .\" arch/alpha/include/asm/core_lca.h |
30e3e116 MK |
674 | \fBsethae\fP(2) 2.0 T{ |
675 | Alpha only; see NOTES | |
676 | T} | |
8717e79e MK |
677 | \fBsethostname\fP(2) 1.0 |
678 | \fBsetitimer\fP(2) 1.0 | |
3e55b0bd | 679 | \fBsetns\fP(2) 3.0 |
8717e79e | 680 | \fBsetpgid\fP(2) 1.0 |
d0a395a2 | 681 | \fBsetpgrp\fP(2) 2.0 T{ |
64cdc974 | 682 | Alternative name for \fBsetpgid\fP(2) on Alpha |
d0a395a2 | 683 | T} |
8717e79e MK |
684 | \fBsetpriority\fP(2) 1.0 |
685 | \fBsetregid\fP(2) 1.0 | |
09de4bf1 MK |
686 | \fBsetregid32\fP(2) 2.4 |
687 | \fBsetresgid\fP(2) 2.2 | |
688 | \fBsetresgid32\fP(2) 2.4 | |
689 | \fBsetresuid\fP(2) 2.2 | |
690 | \fBsetresuid32\fP(2) 2.4 | |
8717e79e | 691 | \fBsetreuid\fP(2) 1.0 |
09de4bf1 | 692 | \fBsetreuid32\fP(2) 2.4 |
8717e79e MK |
693 | \fBsetrlimit\fP(2) 1.0 |
694 | \fBsetsid\fP(2) 1.0 | |
30e3e116 MK |
695 | \fBsetsockopt\fP(2) 2.0 T{ |
696 | See notes on \fBsocketcall\fP(2) | |
697 | T} | |
8717e79e MK |
698 | \fBsettimeofday\fP(2) 1.0 |
699 | \fBsetuid\fP(2) 1.0 | |
09de4bf1 | 700 | \fBsetuid32\fP(2) 2.4 |
e7fa750a | 701 | \fBsetup\fP(2) 1.0 Removed in 2.2 |
09de4bf1 | 702 | \fBsetxattr\fP(2) 2.6; 2.4.18 |
8717e79e | 703 | \fBsgetmask\fP(2) 1.0 |
30e3e116 MK |
704 | \fBshmat\fP(2) 2.0 T{ |
705 | See notes on \fBipc\fP(2) | |
706 | T} | |
707 | \fBshmctl\fP(2) 2.0 T{ | |
708 | See notes on \fBipc\fP(2) | |
709 | T} | |
710 | \fBshmdt\fP(2) 2.0 T{ | |
711 | See notes on \fBipc\fP(2) | |
712 | T} | |
713 | \fBshmget\fP(2) 2.0 T{ | |
714 | See notes on \fBipc\fP(2) | |
715 | T} | |
716 | \fBshutdown\fP(2) 2.0 T{ | |
717 | See notes on \fBsocketcall\fP(2) | |
718 | T} | |
8717e79e | 719 | \fBsigaction\fP(2) 1.0 |
09de4bf1 | 720 | \fBsigaltstack\fP(2) 2.2 |
8717e79e | 721 | \fBsignal\fP(2) 1.0 |
09de4bf1 | 722 | \fBsignalfd\fP(2) 2.6.22 |
eb153420 | 723 | \fBsignalfd4\fP(2) 2.6.27 |
8717e79e MK |
724 | \fBsigpending\fP(2) 1.0 |
725 | \fBsigprocmask\fP(2) 1.0 | |
726 | \fBsigreturn\fP(2) 1.0 | |
727 | \fBsigsuspend\fP(2) 1.0 | |
30e3e116 MK |
728 | \fBsocket\fP(2) 2.0 T{ |
729 | See notes on \fBsocketcall\fP(2) | |
730 | T} | |
8717e79e | 731 | \fBsocketcall\fP(2) 1.0 |
7d50a840 | 732 | .\" Implements BSD socket calls |
30e3e116 MK |
733 | \fBsocketpair\fP(2) 2.0 T{ |
734 | See notes on \fBsocketcall\fP(2) | |
735 | T} | |
e07c81fe ES |
736 | .\" 5a0015d62668e64c8b6e02e360fbbea121bfd5e6 |
737 | \fBspill\fP(2) 2.6.13 Xtensa only | |
09de4bf1 | 738 | \fBsplice\fP(2) 2.6.17 |
30e3e116 MK |
739 | \fBspu_create\fP(2) 2.6.16 T{ |
740 | PowerPC/PowerPC64 only | |
741 | T} | |
742 | \fBspu_run\fP(2) 2.6.16 T{ | |
743 | PowerPC/PowerPC64 only | |
744 | T} | |
8717e79e MK |
745 | \fBssetmask\fP(2) 1.0 |
746 | \fBstat\fP(2) 1.0 | |
09de4bf1 | 747 | \fBstat64\fP(2) 2.4 |
8717e79e | 748 | \fBstatfs\fP(2) 1.0 |
09de4bf1 | 749 | \fBstatfs64\fP(2) 2.6 |
2156a733 | 750 | \fBstatx\fP(2) 4.11 |
8717e79e | 751 | \fBstime\fP(2) 1.0 |
30e3e116 MK |
752 | \fBsubpage_prot\fP(2) 2.6.25 T{ |
753 | PowerPC/PowerPC64 only | |
754 | T} | |
755 | \fBswapcontext\fP(2) 2.6.3 T{ | |
756 | PowerPC/PowerPC64 only | |
757 | T} | |
e07c81fe ES |
758 | .\" 529d235a0e190ded1d21ccc80a73e625ebcad09b |
759 | \fBswitch_endian\fP(2) 4.1 PowerPC64 only | |
8717e79e MK |
760 | \fBswapoff\fP(2) 1.0 |
761 | \fBswapon\fP(2) 1.0 | |
762 | \fBsymlink\fP(2) 1.0 | |
09de4bf1 | 763 | \fBsymlinkat\fP(2) 2.6.16 |
8717e79e | 764 | \fBsync\fP(2) 1.0 |
09de4bf1 | 765 | \fBsync_file_range\fP(2) 2.6.17 |
b58839b9 | 766 | \fBsync_file_range2\fP(2) 2.6.22 |
83225c1f MK |
767 | .\" PowerPC, ARM, tile |
768 | .\" First appeared on ARM, as arm_sync_file_range(), but later renamed | |
af4c9a82 | 769 | .\" \fBsys_debug_setcontext\fP(2) ??? PowerPC if CONFIG_PPC32 |
dc43a891 | 770 | \fBsyncfs\fP(2) 2.6.39 |
e07c81fe | 771 | \fBsys_debug_setcontext\fP(2) 2.6.11 PowerPC only |
d0a395a2 MK |
772 | \fBsyscall\fP(2) 1.0 T{ |
773 | Still available on ARM OABI | |
d0a395a2 MK |
774 | and MIPS O32 ABI |
775 | T} | |
dc2f5549 | 776 | \fBsysfs\fP(2) 1.2 |
8717e79e MK |
777 | \fBsysinfo\fP(2) 1.0 |
778 | \fBsyslog\fP(2) 1.0 | |
7d50a840 | 779 | .\" glibc interface is \fBklogctl\fP(3) |
e07c81fe | 780 | \fBsysmips\fP(2) 2.6.0 MIPS only |
09de4bf1 MK |
781 | \fBtee\fP(2) 2.6.17 |
782 | \fBtgkill\fP(2) 2.6 | |
8717e79e | 783 | \fBtime\fP(2) 1.0 |
09de4bf1 MK |
784 | \fBtimer_create\fP(2) 2.6 |
785 | \fBtimer_delete\fP(2) 2.6 | |
786 | \fBtimer_getoverrun\fP(2) 2.6 | |
787 | \fBtimer_gettime\fP(2) 2.6 | |
788 | \fBtimer_settime\fP(2) 2.6 | |
a5819baa MK |
789 | .\" .\" b215e283992899650c4271e7385c79e26fb9a88e |
790 | .\" .\" 4d672e7ac79b5ec5cdc90e450823441e20464691 | |
791 | .\" \fBtimerfd\fP(2) 2.6.22 T{ | |
792 | .\" Old timerfd interface, | |
793 | .\" removed in 2.6.25 | |
794 | .\" T} | |
0df29603 MK |
795 | \fBtimerfd_create\fP(2) 2.6.25 |
796 | \fBtimerfd_gettime\fP(2) 2.6.25 | |
797 | \fBtimerfd_settime\fP(2) 2.6.25 | |
8717e79e | 798 | \fBtimes\fP(2) 1.0 |
09de4bf1 | 799 | \fBtkill\fP(2) 2.6; 2.4.22 |
8717e79e | 800 | \fBtruncate\fP(2) 1.0 |
09de4bf1 MK |
801 | \fBtruncate64\fP(2) 2.4 |
802 | \fBugetrlimit\fP(2) 2.4 | |
8717e79e MK |
803 | \fBumask\fP(2) 1.0 |
804 | \fBumount\fP(2) 1.0 | |
09de4bf1 MK |
805 | .\" sys_oldumount() -- __NR_umount |
806 | \fBumount2\fP(2) 2.2 | |
807 | .\" sys_umount() -- __NR_umount2 | |
8717e79e MK |
808 | \fBuname\fP(2) 1.0 |
809 | \fBunlink\fP(2) 1.0 | |
09de4bf1 MK |
810 | \fBunlinkat\fP(2) 2.6.16 |
811 | \fBunshare\fP(2) 2.6.16 | |
8717e79e MK |
812 | \fBuselib\fP(2) 1.0 |
813 | \fBustat\fP(2) 1.0 | |
89bfeedf | 814 | \fBuserfaultfd\fP(2) 4.3 |
e07c81fe ES |
815 | \fBusr26\fP(2) 2.4.8.1 ARM OABI only |
816 | \fBusr32\fP(2) 2.4.8.1 ARM OABI only | |
8717e79e | 817 | \fButime\fP(2) 1.0 |
09de4bf1 | 818 | \fButimensat\fP(2) 2.6.22 |
d3ea5e99 | 819 | \fButimes\fP(2) 2.2 |
e07c81fe | 820 | \fButrap_install\fP(2) 2.2 SPARC64 only |
bea08fec | 821 | .\" FIXME . document utrap_install() |
38291c52 | 822 | .\" There's a man page for Solaris 5.11 |
8717e79e MK |
823 | \fBvfork\fP(2) 2.2 |
824 | \fBvhangup\fP(2) 1.0 | |
b6bc918e MK |
825 | \fBvm86old\fP(2) 1.0 T{ |
826 | Was "vm86"; renamed in | |
827 | 2.0.28/2.2 | |
828 | T} | |
8717e79e | 829 | \fBvm86\fP(2) 2.0.28; 2.2 |
09de4bf1 | 830 | \fBvmsplice\fP(2) 2.6.17 |
8717e79e | 831 | \fBwait4\fP(2) 1.0 |
09de4bf1 | 832 | \fBwaitid\fP(2) 2.6.10 |
8717e79e MK |
833 | \fBwaitpid\fP(2) 1.0 |
834 | \fBwrite\fP(2) 1.0 | |
dc2f5549 | 835 | \fBwritev\fP(2) 2.0 |
e07c81fe ES |
836 | .\" 5a0015d62668e64c8b6e02e360fbbea121bfd5e6 |
837 | \fBxtensa\fP(2) 2.6.13 Xtensa only | |
09de4bf1 | 838 | .TE |
c6d039a3 | 839 | .P |
929f1ff7 | 840 | On many platforms, including x86-32, socket calls are all multiplexed |
7d50a840 MK |
841 | (via glibc wrapper functions) through |
842 | .BR socketcall (2) | |
efbfd7ec | 843 | and similarly System\ V IPC calls are multiplexed through |
7d50a840 | 844 | .BR ipc (2). |
c6d039a3 | 845 | .P |
09de4bf1 | 846 | Although slots are reserved for them in the system call table, |
e0bf9127 | 847 | the following system calls are not implemented in the standard kernel: |
09de4bf1 MK |
848 | .BR afs_syscall (2), \" __NR_afs_syscall is 53 on Linux 2.6.22/i386 |
849 | .BR break (2), \" __NR_break is 17 on Linux 2.6.22/i386 | |
850 | .BR ftime (2), \" __NR_ftime is 35 on Linux 2.6.22/i386 | |
851 | .BR getpmsg (2), \" __NR_getpmsg is 188 on Linux 2.6.22/i386 | |
852 | .BR gtty (2), \" __NR_gtty is 32 on Linux 2.6.22/i386 | |
853 | .BR idle (2), \" __NR_idle is 112 on Linux 2.6.22/i386 | |
854 | .BR lock (2), \" __NR_lock is 53 on Linux 2.6.22/i386 | |
855 | .BR madvise1 (2), \" __NR_madvise1 is 219 on Linux 2.6.22/i386 | |
856 | .BR mpx (2), \" __NR_mpx is 66 on Linux 2.6.22/i386 | |
3b777aff | 857 | .BR phys (2), \" Slot has been reused |
09de4bf1 MK |
858 | .BR prof (2), \" __NR_prof is 44 on Linux 2.6.22/i386 |
859 | .BR profil (2), \" __NR_profil is 98 on Linux 2.6.22/i386 | |
860 | .BR putpmsg (2), \" __NR_putpmsg is 189 on Linux 2.6.22/i386 | |
f9e4d811 MK |
861 | .\" __NR_security is 223 on Linux 2.4/i386; absent on 2.6/i386, present |
862 | .\" on a couple of 2.6 architectures | |
863 | .BR security (2), \" __NR_security is 223 on Linux 2.4/i386 | |
0597933f | 864 | .\" The security call is for future use. |
09de4bf1 | 865 | .BR stty (2), \" __NR_stty is 31 on Linux 2.6.22/i386 |
af4c9a82 | 866 | .BR tuxcall (2), \" __NR_tuxcall is 184 on x86_64, also on PPC and alpha |
09de4bf1 MK |
867 | .BR ulimit (2), \" __NR_ulimit is 58 on Linux 2.6.22/i386 |
868 | and | |
869 | .BR vserver (2) \" __NR_vserver is 273 on Linux 2.6.22/i386 | |
fea681da | 870 | (see also |
fea681da MK |
871 | .BR unimplemented (2)). |
872 | However, | |
873 | .BR ftime (3), | |
b701f72d | 874 | .BR profil (3), |
fea681da MK |
875 | and |
876 | .BR ulimit (3) | |
877 | exist as library routines. | |
09de4bf1 MK |
878 | The slot for |
879 | .BR phys (2) | |
b324e17d | 880 | is in use since Linux 2.1.116 for |
09de4bf1 | 881 | .BR umount (2); |
e0bf9127 | 882 | .BR phys (2) |
09de4bf1 | 883 | will never be implemented. |
09de4bf1 MK |
884 | The |
885 | .BR getpmsg (2) | |
886 | and | |
887 | .BR putpmsg (2) | |
888 | calls are for kernels patched to support STREAMS, | |
889 | and may never be in the standard kernel. | |
c6d039a3 | 890 | .P |
98309d3f MK |
891 | There was briefly |
892 | .BR set_zone_reclaim (2), | |
b324e17d | 893 | added in Linux 2.6.13, and removed in Linux 2.6.16; |
7fac88a9 | 894 | this system call was never available to user space. |
14dd128c MK |
895 | .\" |
896 | .SS System calls on removed ports | |
897 | Some system calls only ever existed on Linux architectures that have | |
898 | since been removed from the kernel: | |
899 | .TP | |
900 | AVR32 (port removed in Linux 4.12) | |
901 | .RS | |
902 | .PD 0 | |
cdede5cd | 903 | .IP \[bu] 3 |
14dd128c | 904 | .BR pread (2) |
cdede5cd | 905 | .IP \[bu] |
14dd128c MK |
906 | .BR pwrite (2) |
907 | .PD | |
908 | .RE | |
909 | .TP | |
910 | Blackfin (port removed in Linux 4.17) | |
911 | .RS | |
912 | .PD 0 | |
cdede5cd | 913 | .IP \[bu] 3 |
14dd128c MK |
914 | .BR bfin_spinlock (2) |
915 | (added in Linux 2.6.22) | |
cdede5cd | 916 | .IP \[bu] |
14dd128c MK |
917 | .BR dma_memcpy (2) |
918 | (added in Linux 2.6.22) | |
cdede5cd | 919 | .IP \[bu] |
14dd128c MK |
920 | .BR pread (2) |
921 | (added in Linux 2.6.22) | |
cdede5cd | 922 | .IP \[bu] |
14dd128c MK |
923 | .BR pwrite (2) |
924 | (added in Linux 2.6.22) | |
cdede5cd | 925 | .IP \[bu] |
14dd128c MK |
926 | .BR sram_alloc (2) |
927 | (added in Linux 2.6.22) | |
cdede5cd | 928 | .IP \[bu] |
14dd128c MK |
929 | .BR sram_free (2) |
930 | (added in Linux 2.6.22) | |
931 | .PD | |
932 | .RE | |
933 | .TP | |
934 | Metag (port removed in Linux 4.17) | |
935 | .RS | |
936 | .PD 0 | |
cdede5cd | 937 | .IP \[bu] 3 |
14dd128c MK |
938 | .BR metag_get_tls (2) |
939 | (add in Linux 3.9) | |
cdede5cd | 940 | .IP \[bu] |
14dd128c MK |
941 | .BR metag_set_fpu_flags (2) |
942 | (add in Linux 3.9) | |
cdede5cd | 943 | .IP \[bu] |
14dd128c MK |
944 | .BR metag_set_tls (2) |
945 | (add in Linux 3.9) | |
cdede5cd | 946 | .IP \[bu] |
14dd128c MK |
947 | .BR metag_setglobalbit (2) |
948 | (add in Linux 3.9) | |
949 | .PD | |
950 | .RE | |
951 | .TP | |
952 | Tile (port removed in Linux 4.17) | |
953 | .RS | |
954 | .PD 0 | |
cdede5cd | 955 | .IP \[bu] 3 |
14dd128c MK |
956 | .BR cmpxchg_badaddr (2) |
957 | (added in Linux 2.6.36) | |
958 | .PD | |
959 | .RE | |
0597933f | 960 | .SH NOTES |
fea681da MK |
961 | Roughly speaking, the code belonging to the system call |
962 | with number __NR_xxx defined in | |
963 | .I /usr/include/asm/unistd.h | |
66a9882e | 964 | can be found in the Linux kernel source in the routine |
63aa9df0 | 965 | .IR sys_xxx (). |
fea681da MK |
966 | There are many exceptions, however, mostly because |
967 | older system calls were superseded by newer ones, | |
c13182ef MK |
968 | and this has been treated somewhat unsystematically. |
969 | On platforms with | |
6c1544c1 | 970 | proprietary operating-system emulation, |
8c3e6854 | 971 | such as sparc, sparc64, and alpha, |
fea681da MK |
972 | there are many additional system calls; mips64 also contains a full |
973 | set of 32-bit system calls. | |
c6d039a3 | 974 | .P |
09de4bf1 MK |
975 | Over time, changes to the interfaces of some system calls have been |
976 | necessary. | |
977 | One reason for such changes was the need to increase the size of | |
978 | structures or scalar values passed to the system call. | |
d3c49afa MK |
979 | Because of these changes, certain architectures |
980 | (notably, longstanding 32-bit architectures such as i386) | |
981 | now have various groups of related system calls (e.g., | |
7d50a840 MK |
982 | .BR truncate (2) |
983 | and | |
e04e8187 | 984 | .BR truncate64 (2)) |
7d50a840 MK |
985 | which perform similar tasks, but which vary in |
986 | details such as the size of their arguments. | |
987 | (As noted earlier, applications are generally unaware of this: | |
988 | the glibc wrapper functions do some work to ensure that the right | |
989 | system call is invoked, and that ABI compatibility is | |
990 | preserved for old binaries.) | |
3aa341fc | 991 | Examples of system calls that exist in multiple versions are |
09de4bf1 | 992 | the following: |
cdede5cd | 993 | .IP \[bu] 3 |
7d50a840 | 994 | By now there are three different versions of |
09de4bf1 MK |
995 | .BR stat (2): |
996 | .IR sys_stat () | |
997 | (slot | |
998 | .IR __NR_oldstat ), | |
999 | .IR sys_newstat () | |
1000 | (slot | |
1001 | .IR __NR_stat ), | |
fea681da | 1002 | and |
92a5f983 | 1003 | .IR sys_stat64 () |
09de4bf1 MK |
1004 | (slot |
1005 | .IR __NR_stat64 ), | |
1006 | with the last being the most current. | |
f9e4d811 | 1007 | .\" e.g., on 2.6.22/i386: __NR_oldstat 18, __NR_stat 106, __NR_stat64 195 |
09de4bf1 MK |
1008 | .\" The stat system calls deal with three different data structures, |
1009 | .\" defined in include/asm-i386/stat.h: __old_kernel_stat, stat, stat64 | |
1010 | A similar story applies for | |
1011 | .BR lstat (2) | |
1012 | and | |
1013 | .BR fstat (2). | |
cdede5cd | 1014 | .IP \[bu] |
09de4bf1 MK |
1015 | Similarly, the defines |
1016 | .IR __NR_oldolduname , | |
1017 | .IR __NR_olduname , | |
1018 | and | |
0daa9e92 | 1019 | .I __NR_uname |
09de4bf1 MK |
1020 | refer to the routines |
1021 | .IR sys_olduname (), | |
d556548b | 1022 | .IR sys_uname (), |
09de4bf1 MK |
1023 | and |
1024 | .IR sys_newuname (). | |
cdede5cd | 1025 | .IP \[bu] |
7d50a840 | 1026 | In Linux 2.0, a new version of |
09de4bf1 MK |
1027 | .BR vm86 (2) |
1028 | appeared, with the old and the new kernel routines being named | |
1029 | .IR sys_vm86old () | |
1030 | and | |
1031 | .IR sys_vm86 (). | |
cdede5cd | 1032 | .IP \[bu] |
7d50a840 | 1033 | In Linux 2.4, a new version of |
09de4bf1 MK |
1034 | .BR getrlimit (2) |
1035 | appeared, with the old and the new kernel routines being named | |
1036 | .IR sys_old_getrlimit () | |
1037 | (slot | |
1038 | .IR __NR_getrlimit ) | |
1039 | and | |
1040 | .IR sys_getrlimit () | |
1041 | (slot | |
1042 | .IR __NR_ugetrlimit ). | |
cdede5cd | 1043 | .IP \[bu] |
09de4bf1 | 1044 | Linux 2.4 increased the size of user and group IDs from 16 to 32 bits. |
5024580d | 1045 | .\" 64-bit off_t changes: ftruncate64, *stat64, |
09de4bf1 MK |
1046 | .\" fcntl64 (because of the flock structure), getdents64, *statfs64 |
1047 | To support this change, a range of system calls were added | |
1048 | (e.g., | |
1049 | .BR chown32 (2), | |
1050 | .BR getuid32 (2), | |
1051 | .BR getgroups32 (2), | |
1052 | .BR setresuid32 (2)), | |
1053 | superseding earlier calls of the same name without the | |
1054 | "32" suffix. | |
cdede5cd | 1055 | .IP \[bu] |
09de4bf1 MK |
1056 | Linux 2.4 added support for applications on 32-bit architectures |
1057 | to access large files (i.e., files for which the sizes and | |
1058 | file offsets can't be represented in 32 bits.) | |
1059 | To support this change, replacements were required for system calls | |
1060 | that deal with file offsets and sizes. | |
1061 | Thus the following system calls were added: | |
1062 | .BR fcntl64 (2), | |
09de4bf1 MK |
1063 | .BR getdents64 (2), |
1064 | .BR stat64 (2), | |
1065 | .BR statfs64 (2), | |
470e3031 | 1066 | .BR truncate64 (2), |
09de4bf1 MK |
1067 | and their analogs that work with file descriptors or |
1068 | symbolic links. | |
1069 | These system calls supersede the older system calls | |
1070 | which, except in the case of the "stat" calls, | |
1071 | have the same name without the "64" suffix. | |
efeece04 | 1072 | .IP |
d3c49afa MK |
1073 | On newer platforms that only have 64-bit file access and 32-bit UIDs/GIDs |
1074 | (e.g., alpha, ia64, s390x, x86-64), there is just a single version of | |
1075 | the UID/GID and file access system calls. | |
1076 | On platforms (typically, 32-bit platforms) where the *64 and *32 calls exist, | |
1077 | the other versions are obsolete. | |
cdede5cd | 1078 | .IP \[bu] |
09de4bf1 MK |
1079 | The |
1080 | .I rt_sig* | |
b324e17d | 1081 | calls were added in Linux 2.2 to support the addition |
09de4bf1 MK |
1082 | of real-time signals (see |
1083 | .BR signal (7)). | |
1084 | These system calls supersede the older system calls of the same | |
1085 | name without the "rt_" prefix. | |
cdede5cd | 1086 | .IP \[bu] |
7d50a840 MK |
1087 | The |
1088 | .BR select (2) | |
fea681da | 1089 | and |
7d50a840 | 1090 | .BR mmap (2) |
c4bb193f | 1091 | system calls use five or more arguments, |
208088b5 | 1092 | which caused problems in the way |
c4bb193f | 1093 | argument passing on the i386 used to be set up. |
7d50a840 | 1094 | Thus, while other architectures have |
09de4bf1 MK |
1095 | .IR sys_select () |
1096 | and | |
1097 | .IR sys_mmap () | |
1098 | corresponding to | |
0daa9e92 | 1099 | .I __NR_select |
09de4bf1 MK |
1100 | and |
1101 | .IR __NR_mmap , | |
1102 | on i386 one finds | |
1103 | .IR old_select () | |
1104 | and | |
1105 | .IR old_mmap () | |
48235a56 | 1106 | (routines that use a pointer to an |
c4bb193f MK |
1107 | argument block) instead. |
1108 | These days passing five arguments | |
09de4bf1 | 1109 | is not a problem any more, and there is a |
0daa9e92 | 1110 | .I __NR__newselect |
7d50a840 MK |
1111 | .\" (used by libc 6) |
1112 | that corresponds directly to | |
09de4bf1 MK |
1113 | .IR sys_select () |
1114 | and similarly | |
7d50a840 | 1115 | .IR __NR_mmap2 . |
ee7a193d ES |
1116 | s390x is the only 64-bit architecture that has |
1117 | .IR old_mmap (). | |
c6d039a3 | 1118 | .\" .P |
7d50a840 MK |
1119 | .\" Two system call numbers, |
1120 | .\" .IR __NR__llseek | |
1121 | .\" and | |
1122 | .\" .IR __NR__sysctl | |
1123 | .\" have an additional underscore absent in | |
1124 | .\" .IR sys_llseek () | |
1125 | .\" and | |
1126 | .\" .IR sys_sysctl (). | |
e0bf9127 | 1127 | .\" |
b324e17d | 1128 | .\" In Linux 2.1.81, |
7d50a840 | 1129 | .\" .BR lchown (2) |
e0bf9127 | 1130 | .\" and |
7d50a840 MK |
1131 | .\" .BR chown (2) |
1132 | .\" were swapped; that is, | |
1133 | .\" .BR lchown (2) | |
1134 | .\" was added with the semantics that were then current for | |
1135 | .\" .BR chown (2), | |
1136 | .\" and the semantics of the latter call were changed to what | |
1137 | .\" they are today. | |
d0a395a2 MK |
1138 | .\" |
1139 | .\" | |
1140 | .SS "Architecture-specific details: Alpha" | |
4279e42d | 1141 | .TP |
d0a395a2 MK |
1142 | .BR getxgid (2) |
1143 | returns a pair of GID and effective GID via registers | |
1144 | \fBr0\fP and \fBr20\fP; it is provided | |
1145 | instead of | |
1146 | \fBgetgid\fP(2) and \fBgetegid\fP(2). | |
4279e42d | 1147 | .TP |
d0a395a2 MK |
1148 | .BR getxpid (2) |
1149 | returns a pair of PID and parent PID via registers | |
1150 | \fBr0\fP and \fBr20\fP; it is provided instead of | |
1151 | \fBgetpid\fP(2) and \fBgetppid\fP(2). | |
4279e42d | 1152 | .TP |
d0a395a2 MK |
1153 | .BR old_adjtimex (2) |
1154 | is a variant of \fBadjtimex\fP(2) that uses \fIstruct timeval32\fP, | |
1155 | for compatibility with OSF/1. | |
4279e42d | 1156 | .TP |
d0a395a2 MK |
1157 | .BR getxuid (2) |
1158 | returns a pair of GID and effective GID via registers | |
1159 | \fBr0\fP and \fBr20\fP; it is provided instead of | |
1160 | \fBgetuid\fP(2) and \fBgeteuid\fP(2). | |
4279e42d | 1161 | .TP |
d0a395a2 MK |
1162 | .BR sethae (2) |
1163 | is used for configuring the Host Address Extension register on | |
1164 | low-cost Alphas in order to access address space beyond first 27 bits. | |
09de4bf1 | 1165 | .SH SEE ALSO |
ab59d225 | 1166 | .BR ausyscall (1), |
b73bf0ae | 1167 | .BR intro (2), |
09de4bf1 | 1168 | .BR syscall (2), |
de9ed3a3 | 1169 | .BR unimplemented (2), |
5bc20f9e | 1170 | .BR errno (3), |
951ae9c0 MF |
1171 | .BR libc (7), |
1172 | .BR vdso (7) |