minix/lib/csu/common/compident.S

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/* $NetBSD: compident.S,v 1.1 2013/11/14 12:19:34 martin Exp $ */
/*-
* Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Martin Husemann <martin@NetBSD.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This file is used to generate a note describing the code model in use by
* the compiler on some architectures where this has consequences for the
* VA layout applied by the kernel. On sparc64 the topdown VA layout can
* only be enabled for processes compiled with -mcmodel=medany or greater,
* but not for processes without this note or -mcmodel=medlow.
*
* The note looks similar to the .note.netbsd.march note used (for example)
* on arm to note the ABI used by the process.
*
* [NOTE HEADER]
* long name size
* long content size
* long note type
*
* [NOTE DATUM]
* string code model (for sparc64: medlow, medmid, medany,
* the embedany model is never PIC, so not used here)
*
* The DATUM fields should be padded out such that their actual (not
* declared) sizes % 4 == 0.
*/
#include "sysident_assym.h"
.section ".note.netbsd.mcmodel", "a"
.p2align 2
.long ELF_NOTE_MCMODEL_NAMESZ
.long CONTENTLENGTH
.long ELF_NOTE_TYPE_MCMODEL_TAG
.ascii "NetBSD\0\0"
.ascii CONTENT