2018-01-31 04:11:46 +00:00
|
|
|
/*
|
2020-03-27 09:23:49 +00:00
|
|
|
* Copyright (c) 2018 Ariadne Conill <ariadne@dereferenced.org>
|
2018-01-31 04:11:46 +00:00
|
|
|
*
|
|
|
|
|
* 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.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
.globl __setcontext;
|
|
|
|
|
__setcontext:
|
|
|
|
|
/* copy all of the current registers into the ucontext structure */
|
|
|
|
|
add r14, r0, #32
|
|
|
|
|
ldmia r14, {r0-r12}
|
|
|
|
|
ldr r13, [r14, #52]
|
|
|
|
|
add r14, r14, #56
|
|
|
|
|
|
|
|
|
|
/* load link register and jump to new context */
|
|
|
|
|
ldmia r14, {r14, pc}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
.weak setcontext;
|
|
|
|
|
setcontext = __setcontext;
|
