haiku/src/kernel/core/faults.c

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/* Contains the basic code for fault handling. */
/*
** Copyright 2001, Travis Geiselbrecht. All rights reserved.
** Distributed under the terms of the NewOS License.
*/
#include <kernel.h>
#include <faults_priv.h>
#include <debug.h>
#include <arch/int.h>
#include <int.h>
#include <arch/faults.h>
#include <boot/stage2.h>
#include <string.h>
#include <stdio.h>
int
faults_init(kernel_args *ka)
{
dprintf("init_fault_handlers: entry\n");
return arch_faults_init(ka);
}
int
general_protection_fault(int errorcode)
{
panic("GENERAL PROTECTION FAULT: errcode 0x%x. Killing system.\n", errorcode);
return B_HANDLED_INTERRUPT;
}
static const char *
fpu_fault_to_str(enum fpu_faults fpu_fault)
{
switch (fpu_fault) {
default:
case FPU_FAULT_CODE_UNKNOWN:
return "unknown";
case FPU_FAULT_CODE_DIVBYZERO:
return "divbyzero";
case FPU_FAULT_CODE_INVALID_OP:
return "invalid op";
case FPU_FAULT_CODE_OVERFLOW:
return "overflow";
case FPU_FAULT_CODE_UNDERFLOW:
return "underflow";
case FPU_FAULT_CODE_INEXACT:
return "inexact";
}
}
int
fpu_fault(int fpu_fault)
{
panic("FPU FAULT: errcode 0x%x (%s), Killing system.\n", fpu_fault, fpu_fault_to_str(fpu_fault));
return B_HANDLED_INTERRUPT;
}
int
fpu_disable_fault(void)
{
panic("FPU DISABLE FAULT: Killing system.\n");
return B_HANDLED_INTERRUPT;
}