This patch implements process/thread related codes. Backtrace and stacktrace are here.
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| 1 | /* | ||
| 2 | * linux/arch/unicore32/kernel/init_task.c | ||
| 3 | * | ||
| 4 | * Code specific to PKUnity SoC and UniCore ISA | ||
| 5 | * | ||
| 6 | * Copyright (C) 2001-2010 GUAN Xue-tao | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify | ||
| 9 | * it under the terms of the GNU General Public License version 2 as | ||
| 10 | * published by the Free Software Foundation. | ||
| 11 | */ | ||
| 12 | #include <linux/mm.h> | ||
| 13 | #include <linux/module.h> | ||
| 14 | #include <linux/fs.h> | ||
| 15 | #include <linux/sched.h> | ||
| 16 | #include <linux/init.h> | ||
| 17 | #include <linux/init_task.h> | ||
| 18 | #include <linux/mqueue.h> | ||
| 19 | #include <linux/uaccess.h> | ||
| 20 | |||
| 21 | #include <asm/pgtable.h> | ||
| 22 | |||
| 23 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | ||
| 24 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | ||
| 25 | /* | ||
| 26 | * Initial thread structure. | ||
| 27 | * | ||
| 28 | * We need to make sure that this is 8192-byte aligned due to the | ||
| 29 | * way process stacks are handled. This is done by making sure | ||
| 30 | * the linker maps this in the .text segment right after head.S, | ||
| 31 | * and making head.S ensure the proper alignment. | ||
| 32 | * | ||
| 33 | * The things we do for performance.. | ||
| 34 | */ | ||
| 35 | union thread_union init_thread_union __init_task_data = { | ||
| 36 | INIT_THREAD_INFO(init_task) }; | ||
| 37 | |||
| 38 | /* | ||
| 39 | * Initial task structure. | ||
| 40 | * | ||
| 41 | * All other task structs will be allocated on slabs in fork.c | ||
| 42 | */ | ||
| 43 | struct task_struct init_task = INIT_TASK(init_task); | ||
| 44 | EXPORT_SYMBOL(init_task); | ||