// === IMPORTS ===
extern void MM_PageFault(Uint Addr, Uint ErrorCode, tRegs *Regs);
extern void VM8086_GPF(tRegs *Regs);
-extern void Threads_Dump();
+extern void Threads_Dump(void);
+extern void Threads_Fault(int Num);
// === PROTOTYPES ===
void Error_Backtrace(Uint eip, Uint ebp);
};
// === CODE ===
-void __stack_chk_fail()
+void __stack_chk_fail(void)
{
Panic("FATAL ERROR: Stack Check Failed\n");
for(;;);
void ErrorHandler(tRegs *Regs)
{
Uint cr;
- __asm__ __volatile__ ("cli");
+ //if( Regs && !(Regs->int_num == 13 && Regs->eflags & 0x20000) )
+ // __asm__ __volatile__ ("xchg %bx, %bx");
+ //Log_Debug("X86", "Regs = %p", Regs);
//Log_Debug("X86", "Error %i at 0x%08x", Regs->int_num, Regs->eip);
+ __asm__ __volatile__ ("cli");
+
// Page Fault
if(Regs->int_num == 14)
{
return ;
}
+ // Check if it's a user mode fault
+ if( Regs->eip < KERNEL_BASE || (Regs->cs & 3) == 3 ) {
+ Log_Warning("Arch", "User Fault - %s, Code: 0x%x",
+ csaERROR_NAMES[Regs->int_num], Regs->err_code);
+ Log_Warning("Arch", "at CS:EIP %04x:%08x",
+ Regs->cs, Regs->eip);
+ switch( Regs->int_num )
+ {
+ // Division by Zero
+ case 0: Threads_Fault(FAULT_DIV0); break;
+ // Invalid opcode
+ case 6: Threads_Fault(FAULT_OPCODE); break;
+ // GPF
+ case 13: Threads_Fault(FAULT_ACCESS); break;
+ // Floating Point Exception
+ case 16: Threads_Fault(FAULT_FLOAT); break;
+
+ default: Threads_Fault(FAULT_MISC); break;
+ }
+ return ;
+ }
+
+ Debug_KernelPanic();
Warning("CPU Error %i - %s, Code: 0x%x",
Regs->int_num, csaERROR_NAMES[Regs->int_num], Regs->err_code);
Warning(" CS:EIP = 0x%04x:%08x", Regs->cs, Regs->eip);
- Warning(" SS:ESP = 0x%04x:%08x", Regs->ss, Regs->esp);
+ if(Regs->cs == 0x08)
+ Warning(" SS:ESP = 0x0010:%08x", (Uint)Regs+sizeof(tRegs));
+ else
+ Warning(" SS:ESP = 0x%04x:%08x", Regs->ss, Regs->esp);
Warning(" EFLAGS = 0x%08x", Regs->eflags);
Warning(" EAX %08x ECX %08x EDX %08x EBX %08x",
Regs->eax, Regs->ecx, Regs->edx, Regs->ebx);
switch( Regs->int_num )
{
- case 6:
+ case 6: // #UD
Warning(" Offending bytes: %02x %02x %02x %02x",
*(Uint8*)Regs->eip+0, *(Uint8*)Regs->eip+1,
*(Uint8*)Regs->eip+2, *(Uint8*)Regs->eip+3);