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/*
* arch/ubicom32/include/asm/bug.h
* Generic bug.h for Ubicom32 architecture.
*
* (C) Copyright 2009, Ubicom, Inc.
*
* This file is part of the Ubicom32 Linux Kernel Port.
*
* The Ubicom32 Linux Kernel Port is free software: you can redistribute
* it and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, either version 2 of the
* License, or (at your option) any later version.
*
* The Ubicom32 Linux Kernel Port is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Ubicom32 Linux Kernel Port. If not,
* see <http://www.gnu.org/licenses/>.
*
* Ubicom32 implementation derived from (with many thanks):
* arch/m68knommu
* arch/blackfin
* arch/parisc
*/
#ifndef _ASM_UBICOM32_BUG_H
#define _ASM_UBICOM32_BUG_H
#include <linux/kernel.h>
#include <asm/thread.h>
#if defined(CONFIG_BUG) && defined(CONFIG_STOP_ON_BUG)
/*
* BUG()
* Ubicom specific version of the BUG() macro.
*
* This implementation performs a THREAD_STALL stopping all threads before
* calling panic. This enables a developer to see the "real" state of the
* machine (since panic alters the system state). We do the printf first
* because while it is slow, it does not alter system state (like
* interrupts).
*
* TODO: Implement the trap sequence used by other architectures.
*/
#define BUG() do { \
printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
THREAD_STALL; \
panic("BUG!"); \
} while (0)
/*
* __WARN()
* WARN() using printk() for now.
*
* TODO: Implement the trap sequence used by other architectures.
*/
#define __WARN() \
do { \
printk("WARN: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
} while(0)
/*
* WARN_ON()
* Ubicom specific version of the WARN_ON macro.
*
* This implementation performs a printk for the WARN_ON() instead
* of faulting into the kernel and using report_bug().
*
* TODO: Implement the trap sequence used by other architectures.
*/
#define WARN_ON(x) ({ \
int __ret_warn_on = !!(x); \
if (__builtin_constant_p(__ret_warn_on)) { \
if (__ret_warn_on) \
__WARN(); \
} else { \
if (unlikely(__ret_warn_on)) \
__WARN(); \
} \
unlikely(__ret_warn_on); \
})
#define HAVE_ARCH_BUG
#define HAVE_ARCH_WARN_ON
#endif
#include <asm-generic/bug.h>
#endif /* _ASM_UBICOM32_BUG_H */
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