libucontext/arch/arm/getcontext.S

28 lines
749 B
ArmAsm

/*
* Copyright (c) 2018 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.
*/
.globl __getcontext;
__getcontext:
/* copy all of the current registers into the ucontext structure */
add r1, r0, #48
stmia r1, {r4-r12}
str r13, [r0,#84]
str r14, [r0,#92]
/* return 0 */
mov r0, #0
mov pc, lr
.weak getcontext;
getcontext = __getcontext;