libucontext/arch/arm/startcontext.S

24 lines
739 B
ArmAsm

/*
* Copyright (c) 2018 William Pitcock <nenolod@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.
*/
.globl __start_context;
.fnstart
.cantunwind
nop
__start_context:
/* get the proper context into position and test for NULL */
movs r0, r4
bne __setcontext@plt
/* we are returning into a null context, it seems, so maybe we should exit */
b exit@plt