fault.c

 1/* 
 2 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 3 * Licensed under the GPL
 4 */
 5
 6#include <arch.h>
 7#include <sysdep/ptrace.h>
 8
 9/* These two are from asm-um/uaccess.h and linux/module.h, check them. */
10struct exception_table_entry
11{
12	unsigned long insn;
13	unsigned long fixup;
14};
15
16const struct exception_table_entry *search_exception_tables(unsigned long add);
17
18/* Compare this to arch/i386/mm/extable.c:fixup_exception() */
19int arch_fixup(unsigned long address, struct uml_pt_regs *regs)
20{
21	const struct exception_table_entry *fixup;
22
23	fixup = search_exception_tables(address);
24	if (fixup) {
25		UPT_IP(regs) = fixup->fixup;
26		return 1;
27	}
28	return 0;
29}