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ab16c87e55
When a Thumb-2 kernel is being used, then longjmp must be implemented using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S. Original-patch-by: @jsrlabs Reviewed-by: @awehrfritz Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #7408 Closes #9957 Closes #9967
85 lines
2.3 KiB
ArmAsm
85 lines
2.3 KiB
ArmAsm
/*-
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* Copyright 2004-2014 Olivier Houchard <cognet@FreeBSD.org>
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* Copyright 2012-2014 Ian Lepore <ian@FreeBSD.org>
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* Copyright 2013-2014 Andrew Turner <andrew@FreeBSD.org>
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* Copyright 2014 Svatopluk Kraus <onwahe@gmail.com>
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* Copyright 2014 Michal Meloun <meloun@miracle.cz>
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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, 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(__arm__) && !defined(__aarch64__)
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#if defined(__thumb2__)
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#define _FUNC_MODE .code 16; .thumb_func
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#else
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#define _FUNC_MODE .code 32
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#endif
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#define ENTRY(x) \
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.text; \
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.syntax unified; \
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.align 2; \
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.global x; \
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.type x,#function; \
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_FUNC_MODE; \
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x:
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#define END(x) \
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.size x, . - x;
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#define RET bx lr
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/*
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* setjump + longjmp
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*/
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ENTRY(setjmp)
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#if defined(__thumb2__)
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mov ip, sp
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stmia r0, {r4-r12,r14}
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#else
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stmia r0, {r4-r14}
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#endif
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mov r0, #0x00000000
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RET
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END(setjmp)
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ENTRY(longjmp)
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#if defined(__thumb2__)
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ldmia r0, {r4-r12,r14}
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mov sp, ip
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#else
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ldmia r0, {r4-r14}
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#endif
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mov r0, #0x00000001
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RET
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END(longjmp)
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#ifdef __ELF__
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.section .note.GNU-stack,"",%progbits
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#endif
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#endif
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