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From: peter meng <mengsanshui@yahoo.com.cn>
To: linux-kernel@vger.kernel.org
Subject: Ask a question about show_code  related mips architecture
Date: Fri, 10 Jul 2009 17:47:16 +0800 (CST)	[thread overview]
Message-ID: <640965.87593.qm@web15708.mail.cnb.yahoo.com> (raw)


Hi

I met problem under mips  architecture as following .
So I want to know whether <8c820000> is the current fault pointer like i386 ip register ?  Does mips has similar register ? 




epc   : 801343d4     Tainted: P  
ra    : 80134c3c Status: 10008503    KERNEL EXL IE 
Code: 001110c0  00431021  8c440010 <8c820000> 000212c2  30420001

static void show_code(unsigned int __user *pc)
{
	long i;
	unsigned short __user *pc16 = NULL;

	printk("\nCode:");

	if ((unsigned long)pc & 1)
		pc16 = (unsigned short __user *)((unsigned long)pc & ~1);
	for(i = -3 ; i < 6 ; i++) {
		unsigned int insn;
		if (pc16 ? __get_user(insn, pc16 + i) : __get_user(insn, pc + i)) {
			printk(" (Bad address in epc)\n");
			break;
		}
		printk("%c%0*x%c", (i?' ':'<'), pc16 ? 4 : 8, insn, (i?' ':'>'));
	}
}

Thank a lot .
Peter Meng


      

                 reply	other threads:[~2009-07-10  9:47 UTC|newest]

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