55 lines
1.7 KiB
ArmAsm
55 lines
1.7 KiB
ArmAsm
/*
|
|
* Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* This software is provided 'as is' and without any warranty, express or
|
|
* implied. In no event shall the authors be liable for any damages arising
|
|
* from the use of this software.
|
|
*/
|
|
|
|
LOCALSZ = 1
|
|
|
|
#include "defs.h"
|
|
|
|
ALIAS(setcontext, __setcontext)
|
|
|
|
FUNC(__setcontext)
|
|
PUSH_FRAME(__setcontext)
|
|
|
|
/* move the context to $v0 */
|
|
move $v0, $a0
|
|
|
|
/* load the registers */
|
|
ld $a0, ((4 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a1, ((5 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a2, ((6 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a3, ((7 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a4, ((8 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a5, ((9 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a6, ((10 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $a7, ((11 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
|
|
ld $s0, ((16 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s1, ((17 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s2, ((18 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s3, ((19 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s4, ((20 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s5, ((21 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s6, ((22 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $s7, ((23 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
|
|
ld $gp, ((28 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $sp, ((29 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $fp, ((30 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $ra, ((31 * REG_SZ) + MCONTEXT_GREGS)($v0)
|
|
ld $t9, (MCONTEXT_PC)($v0)
|
|
|
|
move $v0, $zero
|
|
jr $t9
|
|
|
|
POP_FRAME(__setcontext)
|
|
END(__setcontext)
|