projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992 |
| 2 | .\" | |
| 93015253 | 3 | .\" %%%LICENSE_START(VERBATIM) |
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4 | .\" Permission is granted to make and distribute verbatim copies of this |
| 5 | .\" manual provided the copyright notice and this permission notice are | |
| 6 | .\" preserved on all copies. | |
| 7 | .\" | |
| 8 | .\" Permission is granted to copy and distribute modified versions of this | |
| 9 | .\" manual under the conditions for verbatim copying, provided that the | |
| 10 | .\" entire resulting derived work is distributed under the terms of a | |
| 11 | .\" permission notice identical to this one. | |
| c13182ef | 12 | .\" |
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13 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 14 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 15 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 16 | .\" the use of the information contained herein. The author(s) may not | |
| 17 | .\" have taken the same level of care in the production of this manual, | |
| 18 | .\" which is licensed free of charge, as they might when working | |
| 19 | .\" professionally. | |
| c13182ef | 20 | .\" |
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21 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 22 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 4b72fb64 | 23 | .\" %%%LICENSE_END |
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24 | .\" |
| 25 | .\" Modified by Michael Haardt <michael@moria.de> | |
| 26 | .\" Modified Sun Jul 25 10:14:13 1993 by Rik Faith <faith@cs.unc.edu> | |
| 27 | .\" Modified 15 April 1995 by Michael Chastain <mec@shell.portal.com> | |
| 28 | .\" Update calling parameters to Linux 1.2.4 values. | |
| 29 | .\" Modified 10 June 1995 by Andries Brouwer <aeb@cwi.nl> | |
| 30 | .\" Modified 3 May 1996 by Martin Schulze <joey@infodrom.north.de> | |
| 31 | .\" Modified Wed Nov 6 04:05:28 1996 by Eric S. Raymond <esr@thyrsus.com> | |
| 32 | .\" Modified Sat Jan 29 01:08:23 2000 by aeb | |
| 33 | .\" | |
| 1d767b55 | 34 | .TH SETUP 2 2021-03-22 "Linux" "Linux Programmer's Manual" |
| fea681da | 35 | .SH NAME |
| 9ee4a2b6 | 36 | setup \- setup devices and filesystems, mount root filesystem |
| fea681da | 37 | .SH SYNOPSIS |
| c7db92b9 | 38 | .nf |
| fea681da | 39 | .B #include <unistd.h> |
| 68e4db0a | 40 | .PP |
| fea681da | 41 | .B int setup(void); |
| c7db92b9 | 42 | .fi |
| fea681da | 43 | .SH DESCRIPTION |
| e511ffb6 | 44 | .BR setup () |
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45 | is called once from within |
| 46 | .IR linux/init/main.c . | |
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47 | It calls initialization functions for devices and filesystems |
| 48 | configured into the kernel and then mounts the root filesystem. | |
| fea681da MK |
49 | .PP |
| 50 | No user process may call | |
| e511ffb6 | 51 | .BR setup (). |
| 2c8d1c7d | 52 | Any user process, even a process with superuser permission, |
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53 | will receive |
| 54 | .BR EPERM . | |
| 47297adb | 55 | .SH RETURN VALUE |
| e511ffb6 | 56 | .BR setup () |
| fea681da MK |
57 | always returns \-1 for a user process. |
| 58 | .SH ERRORS | |
| 59 | .TP | |
| 60 | .B EPERM | |
| 61 | Always, for a user process. | |
| 710631e8 MK |
62 | .SH VERSIONS |
| 63 | Since Linux 2.1.121, no such function exists anymore. | |
| 47297adb | 64 | .SH CONFORMING TO |
| 8382f16d | 65 | This function is Linux-specific, and should not be used in programs |
| fea681da | 66 | intended to be portable, or indeed in any programs at all. |
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67 | .SH NOTES |
| 68 | The calling sequence varied: at some times | |
| 146c3223 | 69 | .BR setup () |
| 710631e8 | 70 | has had a single argument |
| 5049da5b | 71 | .I "void\ *BIOS" |
| c4bb193f | 72 | and at other times a single argument |
| fea681da | 73 | .IR "int magic" . |