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/* $NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $ */
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <machine/asm.h>
__FBSDID("$FreeBSD$");
#include <machine/regnum.h>
#if defined(LIBC_SCCS) && !defined(lint)
ASMSTR("from: @(#)_setjmp.s 8.1 (Berkeley) 6/4/93")
ASMSTR("$NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $")
#endif /* LIBC_SCCS and not lint */
#ifdef __ABICALLS__
.abicalls
#endif
/*
* C library -- _setjmp, _longjmp
*
* _longjmp(a,v)
* will generate a "return(v)" from
* the last call to
* _setjmp(a)
* by restoring registers from the stack,
* The previous signal state is NOT restored.
*/
LEAF(_setjmp)
#ifdef __ABICALLS__
.set noreorder
.cpload t9
subu sp, sp, CALLFRAME_SIZ # allocate stack frame
.cprestore 16
#endif
li v0, _JB_MAGIC__SETJMP
sw v0, (_JB_MAGIC * SZREG)(a0)
sw ra, (_JB_REG_RA * SZREG)(a0)
sw s0, (_JB_REG_S0 * SZREG)(a0)
sw s1, (_JB_REG_S1 * SZREG)(a0)
sw s2, (_JB_REG_S2 * SZREG)(a0)
sw s3, (_JB_REG_S3 * SZREG)(a0)
sw s4, (_JB_REG_S4 * SZREG)(a0)
sw s5, (_JB_REG_S5 * SZREG)(a0)
sw s6, (_JB_REG_S6 * SZREG)(a0)
sw s7, (_JB_REG_S7 * SZREG)(a0)
sw s8, (_JB_REG_S8 * SZREG)(a0)
#ifdef __ABICALLS__
addu sp, sp, CALLFRAME_SIZ # un-allocate the stack frame
#endif
sw sp, (_JB_REG_SP * SZREG)(a0)
j ra
move v0, zero
END(_setjmp)
LEAF(_longjmp)
#ifdef __ABICALLS__
.set noreorder
.cpload t9
subu sp, sp, CALLFRAME_SIZ # allocate stack frame
.cprestore 16
#endif
lw v0, (_JB_MAGIC * SZREG)(a0)
lw ra, (_JB_REG_RA * SZREG)(a0)
li t0, _JB_MAGIC__SETJMP
bne v0, t0, botch # jump if error
lw s0, (_JB_REG_S0 * SZREG)(a0)
lw s1, (_JB_REG_S1 * SZREG)(a0)
lw s2, (_JB_REG_S2 * SZREG)(a0)
lw s3, (_JB_REG_S3 * SZREG)(a0)
lw s4, (_JB_REG_S4 * SZREG)(a0)
lw s5, (_JB_REG_S5 * SZREG)(a0)
lw s6, (_JB_REG_S6 * SZREG)(a0)
lw s7, (_JB_REG_S7 * SZREG)(a0)
lw sp, (_JB_REG_SP * SZREG)(a0)
lw s8, (_JB_REG_S8 * SZREG)(a0)
j ra
move v0, a1
botch:
jal _C_LABEL(longjmperror)
nop
jal _C_LABEL(abort)
nop
END(_longjmp)
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