There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
140 lines
4.4 KiB
Groff
140 lines
4.4 KiB
Groff
.\" $NetBSD: symlink.2,v 1.20 2010/05/31 12:16:20 njoly Exp $
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.\"
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.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)symlink.2 8.1 (Berkeley) 6/4/93
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.\"
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.Dd June 4, 1993
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.Dt SYMLINK 2
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.Os
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.Sh NAME
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.Nm symlink
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.Nd make symbolic link to a file
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In unistd.h
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.Ft int
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.Fn symlink "const char *name1" "const char *name2"
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.Sh DESCRIPTION
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A symbolic link
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.Fa name2
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is created to
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.Fa name1
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.Pf ( Fa name2
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is the name of the
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file created,
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.Fa name1
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is the string
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used in creating the symbolic link).
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Either name may be an arbitrary path name; the files need neither
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to be on the same file system nor to exist.
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.Sh RETURN VALUES
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Upon successful completion, a zero value is returned.
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If an error occurs, the error code is stored in
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.Va errno
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and a \-1 value is returned.
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.Sh ERRORS
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The symbolic link succeeds unless:
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.Bl -tag -width Er
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.It Bq Er ENOTDIR
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A component of the
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.Fa name2
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prefix is not a directory.
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.It Bq Er ENAMETOOLONG
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A component of a pathname exceeded
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.Brq Dv NAME_MAX
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characters, or an entire path name exceeded
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.Brq Dv PATH_MAX
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characters.
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.It Bq Er ENOENT
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A component of the
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.Fa name2
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path does not exist.
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.It Bq Er EACCES
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A component of the
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.Fa name2
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path prefix denies search permission.
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.It Bq Er ELOOP
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Too many symbolic links were encountered in translating the pathname.
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.It Bq Er EEXIST
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.Fa name2
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already exists.
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.It Bq Er EIO
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An I/O error occurred while making the directory entry for
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.Fa name2 ,
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or allocating the inode for
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.Fa name2 ,
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or writing out the link contents of
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.Fa name2 .
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.It Bq Er EROFS
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The file
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.Fa name2
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would reside on a read-only file system.
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.It Bq Er ENOSPC
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The directory in which the entry for the new symbolic link is being placed
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cannot be extended because there is no space left on the file
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system containing the directory.
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.It Bq Er ENOSPC
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The new symbolic link cannot be created because there
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there is no space left on the file
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system that will contain the symbolic link.
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.It Bq Er ENOSPC
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There are no free inodes on the file system on which the
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symbolic link is being created.
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.It Bq Er EDQUOT
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The directory in which the entry for the new symbolic link
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is being placed cannot be extended because the
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user's quota of disk blocks on the file system
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containing the directory has been exhausted.
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.It Bq Er EDQUOT
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The new symbolic link cannot be created because the user's
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quota of disk blocks on the file system that will
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contain the symbolic link has been exhausted.
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.It Bq Er EDQUOT
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The user's quota of inodes on the file system on
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which the symbolic link is being created has been exhausted.
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.It Bq Er EIO
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An I/O error occurred while making the directory entry or allocating the inode.
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.It Bq Er EFAULT
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.Fa name1
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or
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.Fa name2
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points outside the process's allocated address space.
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.El
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.Sh SEE ALSO
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.Xr ln 1 ,
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.Xr link 2 ,
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.Xr readlink 2 ,
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.Xr unlink 2 ,
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.Xr symlink 7
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.Sh HISTORY
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The
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.Fn symlink
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function call appeared in
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.Bx 4.2 .
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