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unicore32 core architecture: process/thread related codes

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This patch implements process/thread related codes. Backtrace and stacktrace are here.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
GuanXuetao 2011-01-15 18:16:21 +08:00
commit f73670e8a5
6 changed files with 912 additions and 0 deletions
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31
arch/unicore32/include/asm/stacktrace.h Normal file
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/*
* linux/arch/unicore32/include/asm/stacktrace.h
*
* 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.
*/
#ifndef __UNICORE_STACKTRACE_H__
#define __UNICORE_STACKTRACE_H__
struct stackframe {
unsigned long fp;
unsigned long sp;
unsigned long lr;
unsigned long pc;
};
#ifdef CONFIG_FRAME_POINTER
extern int unwind_frame(struct stackframe *frame);
#else
#define unwind_frame(f) (-EINVAL)
#endif
extern void walk_stackframe(struct stackframe *frame,
int (*fn)(struct stackframe *, void *), void *data);
#endif /* __UNICORE_STACKTRACE_H__ */