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 } 23