xref: /openbmc/linux/arch/ia64/mm/extable.c (revision b35565bb)
1 /*
2  * Kernel exception handling table support.  Derived from arch/alpha/mm/extable.c.
3  *
4  * Copyright (C) 1998, 1999, 2001-2002, 2004 Hewlett-Packard Co
5  *	David Mosberger-Tang <davidm@hpl.hp.com>
6  */
7 
8 #include <asm/ptrace.h>
9 #include <asm/extable.h>
10 #include <asm/errno.h>
11 #include <asm/processor.h>
12 
13 void
14 ia64_handle_exception (struct pt_regs *regs, const struct exception_table_entry *e)
15 {
16 	long fix = (u64) &e->fixup + e->fixup;
17 
18 	regs->r8 = -EFAULT;
19 	if (fix & 4)
20 		regs->r9 = 0;
21 	regs->cr_iip = fix & ~0xf;
22 	ia64_psr(regs)->ri = fix & 0x3;		/* set continuation slot number */
23 }
24