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/*

 * or32 helper functions

 *

 */

#ifndef _OR32_OR32_HF_H

#define _OR32_OR32_HF_H

#include <linux/config.h>

#include <asm/processor.h>        // pt_regs

static __inline__ void check_stack(struct pt_regs *regs, const char *file,

                                   const char *function, int line)

{

#ifdef CONFIG_DEBUG_STACKOVERFLOW

        unsigned long esp;

        extern int show_stack(unsigned long *esp);

        extern void show_registers(struct pt_regs *regs);

        __asm__ __volatile__("l.andi %0,r1,%1" : "=r" (esp) : "K" (8191));

        if (unlikely(esp < (sizeof(struct task_struct) + 1024))) {

                printk("%s:%d: %s(): stack overflow: %ld\n",

                       file, line, function,

                       esp - sizeof(struct task_struct));

                __asm__ __volatile__ ("l.addi %0,r1,%1" : "=r" (esp) : "K" (0));

                show_registers(regs);

                show_stack((unsigned long *)esp);

                __asm__ __volatile__("l.nop 1");

        }

#endif

}

#endif /* _OR32_OR32_HF_H */