48 lines
1.2 KiB
ArmAsm
48 lines
1.2 KiB
ArmAsm
/*
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* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* This software is provided 'as is' and without any warranty, express or
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* implied. In no event shall the authors be liable for any damages arising
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* from the use of this software.
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*/
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LOCALSZ = 1
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#include "defs.h"
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ALIAS(getcontext, libucontext_getcontext)
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ALIAS(__getcontext, libucontext_getcontext)
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FUNC(libucontext_getcontext)
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/* copy $gp, $sp, $fp to temporary registers so we don't clobber them */
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move $a2, $gp
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move $a3, $sp
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move $a1, $fp
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PUSH_FRAME(libucontext_getcontext)
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/* set registers */
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sw $s0, REG_OFFSET(16)($a0)
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sw $s1, REG_OFFSET(17)($a0)
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sw $s2, REG_OFFSET(18)($a0)
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sw $s3, REG_OFFSET(19)($a0)
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sw $s4, REG_OFFSET(20)($a0)
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sw $s5, REG_OFFSET(21)($a0)
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sw $s6, REG_OFFSET(22)($a0)
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sw $s7, REG_OFFSET(23)($a0)
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sw $a2, REG_OFFSET(28)($a0)
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sw $a3, REG_OFFSET(29)($a0)
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sw $a1, REG_OFFSET(30)($a0)
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sw $ra, REG_OFFSET(31)($a0)
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sw $ra, (MCONTEXT_PC)($a0)
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POP_FRAME(libucontext_getcontext)
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jr $ra
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END(libucontext_getcontext)
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