From f73670e8a55c11d47c28dca35dc4bc7dfbd4e6eb Mon Sep 17 00:00:00 2001 From: GuanXuetao Date: Sat, 15 Jan 2011 18:16:21 +0800 Subject: unicore32 core architecture: process/thread related codes This patch implements process/thread related codes. Backtrace and stacktrace are here. Signed-off-by: Guan Xuetao Reviewed-by: Arnd Bergmann --- arch/unicore32/kernel/init_task.c | 44 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 arch/unicore32/kernel/init_task.c (limited to 'arch/unicore32/kernel/init_task.c') diff --git a/arch/unicore32/kernel/init_task.c b/arch/unicore32/kernel/init_task.c new file mode 100644 index 000000000000..a35a1e50e4f4 --- /dev/null +++ b/arch/unicore32/kernel/init_task.c @@ -0,0 +1,44 @@ +/* + * linux/arch/unicore32/kernel/init_task.c + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); +/* + * Initial thread structure. + * + * We need to make sure that this is 8192-byte aligned due to the + * way process stacks are handled. This is done by making sure + * the linker maps this in the .text segment right after head.S, + * and making head.S ensure the proper alignment. + * + * The things we do for performance.. + */ +union thread_union init_thread_union __init_task_data = { + INIT_THREAD_INFO(init_task) }; + +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +struct task_struct init_task = INIT_TASK(init_task); +EXPORT_SYMBOL(init_task); -- cgit v1.3-6-gb490