e415d48872
Bumping libc files for unsupported architectures, to simplify merging. A bunch of small fixes: * in libutil update * the macro in endian.h * some undefined types due to clear separation from host. * Fix a warning for cdbr.c Some modification which were required for the new build system: * inclusion path for const.h in sconst, still hacky * Removed default malloc.c which conflicts on some occasions.
56 lines
2.2 KiB
ArmAsm
56 lines
2.2 KiB
ArmAsm
/* $NetBSD: swapcontext.S,v 1.4 2011/01/25 02:38:15 matt Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2003 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Matt Thomas.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "SYS.h"
|
|
|
|
#ifdef LIBC_SCCS
|
|
RCSID("$NetBSD: swapcontext.S,v 1.4 2011/01/25 02:38:15 matt Exp $")
|
|
#endif
|
|
|
|
ENTRY(swapcontext, 0)
|
|
clrl %r0 /* assume getcontext succeeds */
|
|
chmk $SYS_getcontext /* getcontext(oucp) */
|
|
jcc 1f
|
|
jmp CERROR+2 /* something bad happened */
|
|
|
|
1: movl 4(%ap),%r0 /* get oucp */
|
|
addl3 (%ap),$(5+1),%r1 /* size of callframe + arglist (LW) */
|
|
bbs $13,6(%fp),2f /* was this a CALLG? */
|
|
movl $5,%r1 /* size of callframe (in LW) */
|
|
2: movl 8(%fp),(36+12*4)(%r0) /* restore AP */
|
|
moval (%sp)[%r1],(36+13*4)(%r0) /* restore SP */
|
|
movq 12(%fp),(36+14*4)(%r0) /* restore FP + PC */
|
|
|
|
pushl 8(%ap)
|
|
calls $1,_C_LABEL(setcontext) /* setcontext(ucp) */
|
|
ret
|
|
END(swapcontext)
|