diff options
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index c8e291c8305..6379003f9d8 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -606,6 +606,8 @@ asmlinkage void do_ov(struct pt_regs *regs) */ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) { + siginfo_t info; + die_if_kernel("FP exception in kernel code", regs); if (fcr31 & FPU_CSR_UNI_X) { @@ -641,9 +643,22 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) force_sig(sig, current); return; - } - - force_sig(SIGFPE, current); + } else if (fcr31 & FPU_CSR_INV_X) + info.si_code = FPE_FLTINV; + else if (fcr31 & FPU_CSR_DIV_X) + info.si_code = FPE_FLTDIV; + else if (fcr31 & FPU_CSR_OVF_X) + info.si_code = FPE_FLTOVF; + else if (fcr31 & FPU_CSR_UDF_X) + info.si_code = FPE_FLTUND; + else if (fcr31 & FPU_CSR_INE_X) + info.si_code = FPE_FLTRES; + else + info.si_code = __SI_FAULT; + info.si_signo = SIGFPE; + info.si_errno = 0; + info.si_addr = (void __user *) regs->cp0_epc; + force_sig_info(SIGFPE, &info, current); } asmlinkage void do_bp(struct pt_regs *regs) @@ -1035,19 +1050,11 @@ void ejtag_exception_handler(struct pt_regs *regs) /* * NMI exception handler. */ -void nmi_exception_handler(struct pt_regs *regs) +NORET_TYPE void ATTRIB_NORET nmi_exception_handler(struct pt_regs *regs) { -#ifdef CONFIG_MIPS_MT_SMTC - unsigned long dvpret = dvpe(); - bust_spinlocks(1); - printk("NMI taken!!!!\n"); - mips_mt_regdump(dvpret); -#else bust_spinlocks(1); printk("NMI taken!!!!\n"); -#endif /* CONFIG_MIPS_MT_SMTC */ die("NMI", regs); - while(1) ; } #define VECTORSPACING 0x100 /* for EI/VI mode */ |