libucontext/arch/or1k/getcontext.S

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/*
* Copyright (c) 2022 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.
*/
#include "defs.h"
ALIAS(getcontext, libucontext_getcontext)
ALIAS(__getcontext, libucontext_getcontext)
FUNC(libucontext_getcontext)
l.sw REG_OFFSET(1)(r3), r1 /* store r1 and r2 */
l.sw REG_OFFSET(2)(r3), r2
l.sw REG_OFFSET(9)(r3), r9 /* store r9 to both r9 and r11 in the context */
l.sw REG_OFFSET(11)(r3), r9
l.sw REG_OFFSET(10)(r3), r10 /* store r10 for TLS */
l.sw REG_OFFSET(14)(r3), r14 /* store r14 through r30 even */
l.sw REG_OFFSET(16)(r3), r16
l.sw REG_OFFSET(18)(r3), r18
l.sw REG_OFFSET(20)(r3), r20
l.sw REG_OFFSET(22)(r3), r22
l.sw REG_OFFSET(24)(r3), r24
l.sw REG_OFFSET(26)(r3), r26
l.sw REG_OFFSET(28)(r3), r28
l.sw REG_OFFSET(30)(r3), r30
l.jr r9
l.ori r11, r0, 0
END(libucontext_getcontext)