libucontext/arch/mips64/getcontext.S

48 lines
1.2 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(getcontext, libucontext_getcontext)
ALIAS(__getcontext, libucontext_getcontext)
FUNC(libucontext_getcontext)
/* copy $gp, $sp, $fp to temporary registers so we don't clobber them */
move $a2, $gp
move $a3, $sp
move $a4, $fp
PUSH_FRAME(libucontext_getcontext)
/* set registers */
sd $s0, REG_OFFSET(16)($a0)
sd $s1, REG_OFFSET(17)($a0)
sd $s2, REG_OFFSET(18)($a0)
sd $s3, REG_OFFSET(19)($a0)
sd $s4, REG_OFFSET(20)($a0)
sd $s5, REG_OFFSET(21)($a0)
sd $s6, REG_OFFSET(22)($a0)
sd $s7, REG_OFFSET(23)($a0)
sd $a2, REG_OFFSET(28)($a0)
sd $a3, REG_OFFSET(29)($a0)
sd $a4, REG_OFFSET(30)($a0)
sd $ra, REG_OFFSET(31)($a0)
sd $ra, (MCONTEXT_PC)($a0)
POP_FRAME(libucontext_getcontext)
jr $ra
END(libucontext_getcontext)