forked from ariadne/libucontext
35 lines
808 B
ArmAsm
35 lines
808 B
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"
|
||
|
|
|
||
|
|
FUNC(__start_context)
|
||
|
|
move $gp, $s1
|
||
|
|
|
||
|
|
/* we receive our initial ucontext in $s0, so if $s0 is nil, bail */
|
||
|
|
beqz $s0, no_linked_context
|
||
|
|
|
||
|
|
/* call setcontext */
|
||
|
|
move $a0, $s0
|
||
|
|
la $t9, __setcontext
|
||
|
|
|
||
|
|
jr $t9
|
||
|
|
|
||
|
|
no_linked_context:
|
||
|
|
move $a0, $zero
|
||
|
|
la $t9, exit
|
||
|
|
jalr $t9
|
||
|
|
nop
|
||
|
|
END(__start_context)
|