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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
92 lines
2.8 KiB
Groff
92 lines
2.8 KiB
Groff
.\" $NetBSD: posix_memalign.3,v 1.1 2007/11/19 14:48:43 ad Exp $
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.\"
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.\" Copyright (C) 2006 Jason Evans <jasone@FreeBSD.org>.
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.\" 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(s), this list of conditions and the following disclaimer as
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.\" the first lines of this file unmodified other than the possible
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.\" addition of one or more copyright notices.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice(s), this list of conditions and the following disclaimer in
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.\" the documentation and/or other materials provided with the
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.\" distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
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.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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.\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" FreeBSD: src/lib/libc/stdlib/posix_memalign.3,v 1.3 2007/03/28 04:32:51 jasone Exp
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.\"
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.Dd November 19, 2007
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.Dt POSIX_MEMALIGN 3
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.Os
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.Sh NAME
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.Nm posix_memalign
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.Nd aligned memory allocation
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In stdlib.h
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.Ft int
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.Fn posix_memalign "void **ptr" "size_t alignment" "size_t size"
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.Sh DESCRIPTION
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The
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.Fn posix_memalign
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function allocates
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.Fa size
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bytes of memory such that the allocation's base address is an even multiple of
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.Fa alignment ,
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and returns the allocation in the value pointed to by
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.Fa ptr .
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.Pp
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The requested
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.Fa alignment
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must be a power of 2 at least as large as
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.Fn sizeof "void *" .
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.Pp
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Memory that is allocated via
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.Fn posix_memalign
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can be used as an argument in subsequent calls to
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.Xr realloc 3
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and
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.Xr free 3 .
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.Sh RETURN VALUES
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The
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.Fn posix_memalign
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function returns the value 0 if successful; otherwise it returns an error value.
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.Sh ERRORS
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The
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.Fn posix_memalign
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function will fail if:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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The
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.Fa alignment
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parameter is not a power of 2 at least as large as
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.Fn sizeof "void *" .
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.It Bq Er ENOMEM
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Memory allocation error.
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.El
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.Sh SEE ALSO
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.Xr free 3 ,
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.Xr malloc 3 ,
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.Xr realloc 3 ,
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.Xr valloc 3
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.Sh STANDARDS
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The
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.Fn posix_memalign
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function conforms to
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.St -p1003.1-2001 .
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