libucontext/arch/loongarch64/getcontext.S

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/*
* Copyright (c) 2021 Peng Fan <fanpeng@loongson.cn>
*
* 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.
*/
#define LOCALSZ (1)
#include "defs.h"
ALIAS(getcontext, libucontext_getcontext)
FUNC(libucontext_getcontext)
/* copy $sp, $fp to temporary registers so we don't clobber them */
move $a2, $sp
move $a3, $fp
PUSH_FRAME(libucontext_getcontext)
/* set registers */
st.d $s0, $a0, REG_OFFSET(23)
st.d $s1, $a0, REG_OFFSET(24)
st.d $s2, $a0, REG_OFFSET(25)
st.d $s3, $a0, REG_OFFSET(26)
st.d $s4, $a0, REG_OFFSET(27)
st.d $s5, $a0, REG_OFFSET(28)
st.d $s6, $a0, REG_OFFSET(29)
st.d $s7, $a0, REG_OFFSET(30)
st.d $s8, $a0, REG_OFFSET(31)
st.d $a2, $a0, REG_OFFSET(3)
st.d $a3, $a0, REG_OFFSET(22)
st.d $ra, $a0, REG_OFFSET(1)
st.d $ra, $a0, (MCONTEXT_PC)
POP_FRAME(libucontext_getcontext)
jr $ra
END(libucontext_getcontext)