arch/um/sys-i386/fault.c

   1 /*
   2  * Copyright (C) 2002 - 2004 Jeff Dike (jdike@addtoit.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #include <signal.h>
   7 #include "sysdep/ptrace.h"
   8 #include "sysdep/sigcontext.h"
   9
  10 /* These two are from asm-um/uaccess.h and linux/module.h, check them. */
  11 struct exception_table_entry
  12 {
  13         unsigned long insn;
  14         unsigned long fixup;
  15 };
  16
  17 const struct exception_table_entry *search_exception_tables(unsigned long add);
  18
  19 /* Compare this to arch/i386/mm/extable.c:fixup_exception() */
  20 int arch_fixup(unsigned long address, void *sc_ptr)
  21 {
  22         struct sigcontext *sc = sc_ptr;
  23         const struct exception_table_entry *fixup;
  24
  25         fixup = search_exception_tables(address);
  26         if(fixup != 0){
  27                 sc->eip = fixup->fixup;
  28                 return(1);
  29         }
  30         return(0);
  31 }
  32
  33 /*
  34  * Overrides for Emacs so that we follow Linus's tabbing style.
  35  * Emacs will notice this stuff at the end of the file and automatically
  36  * adjust the settings for this buffer only.  This must remain at the end
  37  * of the file.
  38  * ---------------------------------------------------------------------------
  39  * Local variables:
  40  * c-file-style: "linux"
  41  * End:
  42  */