aboutsummaryrefslogtreecommitdiff
path: root/arch/um/sys-x86_64/fault.c
blob: ce85117fc64eeb6fc33f7e9534169372152e0634 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/*
 * Copyright 2003 PathScale, Inc.
 *
 * Licensed under the GPL
 */

#include "sysdep/ptrace.h"

/* These two are from asm-um/uaccess.h and linux/module.h, check them. */
struct exception_table_entry
{
	unsigned long insn;
	unsigned long fixup;
};

const struct exception_table_entry *search_exception_tables(unsigned long add);

int arch_fixup(unsigned long address, struct uml_pt_regs *regs)
{
	const struct exception_table_entry *fixup;

	fixup = search_exception_tables(address);
	if (fixup != 0) {
		UPT_IP(regs) = fixup->fixup;
		return 1;
	}
	return 0;
}