0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
125 lines
5.4 KiB
ArmAsm
125 lines
5.4 KiB
ArmAsm
/* $NetBSD: _setjmp.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas of 3am Software Foundry.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE 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 BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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#include "assym.h"
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#if defined(LIBC_SCCS)
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__RCSID("$NetBSD: _setjmp.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
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#endif
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/*
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* C library -- _setjmp, _longjmp
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*
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* _longjmp(a,v)
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* will generate a "return(v?v:1)" from the last call to
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* _setjmp(a)
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* by restoring registers from the stack.
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* The previous signal state is NOT restored.
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*/
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ENTRY(_setjmp)
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REG_S zero, JB_MAGIC(a0) /* indicate no sigmask */
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REG_S ra, JB_RA(a0) /* save return address */
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REG_S sp, JB_SP(a0) /* save stack pointer */
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REG_S gp, JB_GP(a0) /* save global pointer */
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REG_S tp, JB_TP(a0) /* save thread pointer */
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REG_S s0, JB_S0(a0) /* save callee saved register */
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REG_S s1, JB_S1(a0) /* save callee saved register */
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REG_S s2, JB_S2(a0) /* save callee saved register */
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REG_S s3, JB_S3(a0) /* save callee saved register */
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REG_S s4, JB_S4(a0) /* save callee saved register */
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REG_S s5, JB_S5(a0) /* save callee saved register */
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REG_S s6, JB_S6(a0) /* save callee saved register */
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REG_S s7, JB_S7(a0) /* save callee saved register */
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REG_S s8, JB_S8(a0) /* save callee saved register */
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REG_S s9, JB_S9(a0) /* save callee saved register */
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REG_S s10, JB_S10(a0) /* save callee saved register */
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REG_S s11, JB_S11(a0) /* save callee saved register */
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#ifndef _SOFT_FLOAT
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frcsr t2 /* get FSCR */
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REG_S t2, JB_FCSR(a0) /* save it */
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fsd fs0, JB_FS0(a0) /* save callee saved register */
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fsd fs1, JB_FS1(a0) /* save callee saved register */
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fsd fs2, JB_FS2(a0) /* save callee saved register */
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fsd fs3, JB_FS3(a0) /* save callee saved register */
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fsd fs4, JB_FS4(a0) /* save callee saved register */
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fsd fs5, JB_FS5(a0) /* save callee saved register */
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fsd fs6, JB_FS6(a0) /* save callee saved register */
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fsd fs7, JB_FS7(a0) /* save callee saved register */
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fsd fs8, JB_FS8(a0) /* save callee saved register */
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fsd fs9, JB_FS9(a0) /* save callee saved register */
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fsd fs10, JB_FS10(a0) /* save callee saved register */
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fsd fs11, JB_FS11(a0) /* save callee saved register */
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#endif
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li a0, 0 /* indicate success */
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ret /* return */
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END(_setjmp)
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ENTRY(_longjmp)
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REG_L ra, JB_RA(a0) /* save return address */
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REG_L sp, JB_SP(a0) /* save stack pointer */
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REG_L gp, JB_GP(a0) /* save global pointer */
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#REG_L tp, JB_TP(a0) /* save thread pointer */
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REG_L s0, JB_S0(a0) /* save callee saved register */
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REG_L s1, JB_S1(a0) /* save callee saved register */
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REG_L s2, JB_S2(a0) /* save callee saved register */
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REG_L s3, JB_S3(a0) /* save callee saved register */
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REG_L s4, JB_S4(a0) /* save callee saved register */
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REG_L s5, JB_S5(a0) /* save callee saved register */
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REG_L s6, JB_S6(a0) /* save callee saved register */
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REG_L s7, JB_S7(a0) /* save callee saved register */
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REG_L s8, JB_S8(a0) /* save callee saved register */
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REG_L s9, JB_S9(a0) /* save callee saved register */
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REG_L s10, JB_S10(a0) /* save callee saved register */
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REG_L s11, JB_S11(a0) /* save callee saved register */
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#ifndef _SOFT_FLOAT
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REG_L t2, JB_FCSR(a0) /* get it */
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fscsr t2 /* restore FSCR */
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fld fs0, JB_FS0(a0) /* restore callee saved register */
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fld fs1, JB_FS1(a0) /* restore callee saved register */
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fld fs2, JB_FS2(a0) /* restore callee saved register */
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fld fs3, JB_FS3(a0) /* restore callee saved register */
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fld fs4, JB_FS4(a0) /* restore callee saved register */
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fld fs5, JB_FS5(a0) /* restore callee saved register */
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fld fs6, JB_FS6(a0) /* restore callee saved register */
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fld fs7, JB_FS7(a0) /* restore callee saved register */
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fld fs8, JB_FS8(a0) /* restore callee saved register */
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fld fs9, JB_FS9(a0) /* restore callee saved register */
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fld fs10, JB_FS10(a0) /* restore callee saved register */
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fld fs11, JB_FS11(a0) /* restore callee saved register */
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#endif
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li a0, 1 /* default return value */
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beqz a1, 1f /* test return value */
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move a0, a1 /* use it if not 0 */
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1: ret
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END(_longjmp)
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