1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Kernel exception handling table support. Derived from arch/alpha/mm/extable.c. 4 * 5 * Copyright (C) 1998, 1999, 2001-2002, 2004 Hewlett-Packard Co 6 * David Mosberger-Tang <davidm@hpl.hp.com> 7 */ 8 9 #include <asm/ptrace.h> 10 #include <asm/extable.h> 11 #include <asm/errno.h> 12 #include <asm/processor.h> 13 14 void 15 ia64_handle_exception (struct pt_regs *regs, const struct exception_table_entry *e) 16 { 17 long fix = (u64) &e->fixup + e->fixup; 18 19 regs->r8 = -EFAULT; 20 if (fix & 4) 21 regs->r9 = 0; 22 regs->cr_iip = fix & ~0xf; 23 ia64_psr(regs)->ri = fix & 0x3; /* set continuation slot number */ 24 } 25