arch/arm64/mm/extable.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Based on arch/arm/mm/extable.c
   4  */
   5
   6 #include <linux/extable.h>
   7 #include <linux/uaccess.h>
   8
   9 int fixup_exception(struct pt_regs *regs)
  10 {
  11         const struct exception_table_entry *fixup;
  12
  13         fixup = search_exception_tables(instruction_pointer(regs));
  14         if (!fixup)
  15                 return 0;
  16
  17         if (in_bpf_jit(regs))
  18                 return arm64_bpf_fixup_exception(fixup, regs);
  19
  20         regs->pc = (unsigned long)&fixup->fixup + fixup->fixup;
  21         return 1;
  22 }