diff options
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 7d5a703f6..8c941c4ee 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1,4 +1,4 @@ -/* $Id: traps.c,v 1.12 1998/06/30 00:21:53 ralf Exp $ +/* $Id: traps.c,v 1.13 1998/07/10 01:14:48 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -226,6 +226,9 @@ int unregister_fpe(void (*handler)(struct pt_regs *regs, unsigned int fcr31)) */ void do_fpe(struct pt_regs *regs, unsigned long fcr31) { + unsigned long pc; + unsigned int insn; + #ifdef CONFIG_MIPS_FPE_MODULE if (fpe_handler != NULL) { fpe_handler(regs, fcr31); @@ -246,13 +249,22 @@ void do_fpe(struct pt_regs *regs, unsigned long fcr31) : "r" (fcr31)); goto out; } - printk("Unimplemented exception at 0x%08lx in %s.\n", - regs->cp0_epc, current->comm); + pc = regs->cp0_epc + ((regs->cp0_cause & CAUSEF_BD) ? 4 : 0); + if (get_user(insn, (unsigned int *)pc)) { + /* XXX Can this happen? */ + force_sig(SIGSEGV, current); + } + + printk(KERN_DEBUG "Unimplemented exception for insn %08x at 0x%08lx in %s.\n", + insn, regs->cp0_epc, current->comm); + simfp(insn); } if (compute_return_epc(regs)) goto out; - force_sig(SIGFPE, current); + //force_sig(SIGFPE, current); + printk(KERN_DEBUG "Should send SIGFPE to %s\n", current->comm); + out: unlock_kernel(); } |