LXR linux/include/asm-generic/extable.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_GENERIC_EXTABLE_H
   3#define __ASM_GENERIC_EXTABLE_H
   4
   5/*
   6 * The exception table consists of pairs of addresses: the first is the
   7 * address of an instruction that is allowed to fault, and the second is
   8 * the address at which the program should continue.  No registers are
   9 * modified, so it is entirely up to the continuation code to figure out
  10 * what to do.
  11 *
  12 * All the routines below use bits of fixup code that are out of line
  13 * with the main instruction path.  This means when everything is well,
  14 * we don't even have to jump over them.  Further, they do not intrude
  15 * on our cache or tlb entries.
  16 */
  17
  18struct exception_table_entry
  19{
  20        unsigned long insn, fixup;
  21};
  22
  23
  24struct pt_regs;
  25extern int fixup_exception(struct pt_regs *regs);
  26
  27#endif
  28