libucontext/arch/ppc/swapcontext.S

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/*
* Copyright (c) 2019 Bobby Bingham <koorogi@koorogi.info>
*
* 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.
*/
.global __swapcontext
__swapcontext:
li 0, 249 # SYS_swapcontext
li 5, 1184 # sizeof(ucontext_t)
sc
.hidden __retfromsyscall
b __retfromsyscall@local
.weak swapcontext
swapcontext = __swapcontext