/// <summary> /// Interrupts the handler. /// </summary> /// <param name="stack">The stack.</param> private unsafe static void ProcessInterrupt(IDTStack *stack) { DebugClient.Process(); switch (stack->Interrupt) { case 0: Error(stack->EBP, stack->EIP, "Divide Error"); break; case 4: Error(stack->EBP, stack->EIP, "Arithmetic Overflow Exception"); break; case 5: Error(stack->EBP, stack->EIP, "Bound Check Error"); break; case 6: Error(stack->EBP, stack->EIP, "Invalid Opcode"); break; case 7: Error(stack->EBP, stack->EIP, "Co-processor Not Available"); break; case 8: //TODO: Analyze the double fault Error(stack->EBP, stack->EIP, "Double Fault"); break; case 9: Error(stack->EBP, stack->EIP, "Co-processor Segment Overrun"); break; case 10: Error(stack->EBP, stack->EIP, "Invalid TSS"); break; case 11: Error(stack->EBP, stack->EIP, "Segment Not Present"); break; case 12: Error(stack->EBP, stack->EIP, "Stack Exception"); break; case 13: Error(stack->EBP, stack->EIP, "General Protection Exception"); break; case 14: // Check if Null Pointer Exception // Otherwise handle as Page Fault var cr2 = Native.GetCR2() >> 5; if (cr2 < 0x1000) { Error(stack->EBP, stack->EIP, "Null Pointer Exception"); } //spinLock.Enter(ref taken); uint physicalpage = PageFrameAllocator.Allocate(); if (physicalpage == 0x0) { // Panic! Out of memory Panic.SetStackPointer(stack->EBP, stack->EIP); Panic.Error(cr2); } PageTable.MapVirtualAddressToPhysical(Native.GetCR2(), physicalpage); //spinLock.Exit(); break; case 16: Error(stack->EBP, stack->EIP, "Co-processor Error"); break; case 19: Error(stack->EBP, stack->EIP, "SIMD Floating-Point Exception"); break; default: if (interruptHandler != null) { interruptHandler(stack->Interrupt, stack->ErrorCode); } break; } PIC.SendEndOfInterrupt(stack->Interrupt); }
private static void Error(uint ebp, uint eip, string message) { Panic.SetStackPointer(ebp, eip); Panic.Error(message); }
/// <summary> /// Interrupts the handler. /// </summary> /// <param name="stack">The stack.</param> private unsafe static void ProcessInterrupt(IDTStack *stack) { DebugClient.Process(); switch (stack->Interrupt) { case 0: Error(stack->EBP, stack->EIP, "Divide Error"); break; case 4: Error(stack->EBP, stack->EIP, "Arithmetic Overflow Exception"); break; case 5: Error(stack->EBP, stack->EIP, "Bound Check Error"); break; case 6: Error(stack->EBP, stack->EIP, "Invalid Opcode"); break; case 7: Error(stack->EBP, stack->EIP, "Coprocessor Not Available"); break; case 8: //TODO: Analyze the double fault Error(stack->EBP, stack->EIP, "Double Fault"); break; case 9: Error(stack->EBP, stack->EIP, "Coprocessor Segment Overrun"); break; case 10: Error(stack->EBP, stack->EIP, "Invalid TSS"); break; case 11: Error(stack->EBP, stack->EIP, "Segment Not Present"); break; case 12: Error(stack->EBP, stack->EIP, "Stack Exception"); break; case 13: Error(stack->EBP, stack->EIP, "General Protection Exception"); break; case 14: // Page Fault! var cr2 = Native.GetCR2() >> 5; if (cr2 < 0x1000) { Error(stack->EBP, stack->EIP, "Null Pointer Exception"); break; } //PageFaultHandler.Fault(errorCode); Panic.SetStackPointer(stack->EBP, stack->EIP); Panic.Error(cr2); break; case 16: Error(stack->EBP, stack->EIP, "Coprocessor Error"); break; case 19: Error(stack->EBP, stack->EIP, "SIMD Floating-Point Exception"); break; default: if (interruptHandler != null) { interruptHandler(stack->Interrupt, stack->ErrorCode); } break; } PIC.SendEndOfInterrupt(stack->Interrupt); }