arch/x86/um/fault.c

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