162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Kernel exception handling table support. Derived from arch/alpha/mm/extable.c. 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 1998, 1999, 2001-2002, 2004 Hewlett-Packard Co 662306a36Sopenharmony_ci * David Mosberger-Tang <davidm@hpl.hp.com> 762306a36Sopenharmony_ci */ 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#include <asm/ptrace.h> 1062306a36Sopenharmony_ci#include <asm/extable.h> 1162306a36Sopenharmony_ci#include <asm/errno.h> 1262306a36Sopenharmony_ci#include <asm/processor.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_civoid 1562306a36Sopenharmony_ciia64_handle_exception (struct pt_regs *regs, const struct exception_table_entry *e) 1662306a36Sopenharmony_ci{ 1762306a36Sopenharmony_ci long fix = (u64) &e->fixup + e->fixup; 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci regs->r8 = -EFAULT; 2062306a36Sopenharmony_ci if (fix & 4) 2162306a36Sopenharmony_ci regs->r9 = 0; 2262306a36Sopenharmony_ci regs->cr_iip = fix & ~0xf; 2362306a36Sopenharmony_ci ia64_psr(regs)->ri = fix & 0x3; /* set continuation slot number */ 2462306a36Sopenharmony_ci} 25