LXR linux/arch/arm/mm/extable.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 *  linux/arch/arm/mm/extable.c
   4 */
   5#include <linux/extable.h>
   6#include <linux/uaccess.h>
   7
   8int fixup_exception(struct pt_regs *regs)
   9{
  10        const struct exception_table_entry *fixup;
  11
  12        fixup = search_exception_tables(instruction_pointer(regs));
  13        if (fixup) {
  14                regs->ARM_pc = fixup->fixup;
  15#ifdef CONFIG_THUMB2_KERNEL
  16                /* Clear the IT state to avoid nasty surprises in the fixup */
  17                regs->ARM_cpsr &= ~PSR_IT_MASK;
  18#endif
  19        }
  20
  21        return fixup != NULL;
  22}
  23