2 * Acess2 - x86 Architecture
9 #define MAX_BACKTRACE 8 //!< Maximum distance to trace the stack backwards
12 extern void MM_PageFault(Uint Addr, Uint ErrorCode, tRegs *Regs);
13 extern void Threads_Dump();
16 void Error_Backtrace(Uint eip, Uint ebp);
20 * \fn void ErrorHandler(tRegs *Regs)
21 * \brief General Error Handler
23 void ErrorHandler(tRegs *Regs)
26 __asm__ __volatile__ ("cli");
28 if(Regs->int_num == 14)
30 __asm__ __volatile__ ("mov %%cr2, %0":"=r"(cr));
31 MM_PageFault( cr, Regs->err_code, Regs );
35 Warning("CPU Error %i, Code: 0x%x", Regs->int_num, Regs->err_code);
36 Warning(" CS:EIP = 0x%04x:%08x", Regs->cs, Regs->eip);
37 Warning(" SS:ESP = 0x%04x:%08x", Regs->ss, Regs->esp);
38 Warning(" EFLAGS = 0x%08x", Regs->eflags);
39 Warning(" EAX %08x EBX %08x", Regs->eax, Regs->ebx);
40 Warning(" ECX %08x EDX %08x", Regs->ecx, Regs->edx);
41 Warning(" ESP %08x EBP %08x", Regs->esp, Regs->ebp);
42 Warning(" ESI %08x EDI %08x", Regs->esi, Regs->edi);
43 Warning(" DS %04x ES %04x", Regs->ds, Regs->es);
44 Warning(" FS %04x GS %04x", Regs->fs, Regs->gs);
47 __asm__ __volatile__ ("mov %%cr0, %0":"=r"(cr));
48 Warning(" CR0: 0x%08x", cr);
49 __asm__ __volatile__ ("mov %%cr2, %0":"=r"(cr));
50 Warning(" CR2: 0x%08x", cr);
51 __asm__ __volatile__ ("mov %%cr3, %0":"=r"(cr));
52 Warning(" CR3: 0x%08x", cr);
54 // Print Stack Backtrace
55 Error_Backtrace(Regs->eip, Regs->ebp);
57 // Dump running threads
60 for(;;) __asm__ __volatile__ ("hlt");
63 * \fn void Error_Backtrace(Uint eip, Uint ebp)
64 * \brief Unrolls the stack to trace execution
66 void Error_Backtrace(Uint eip, Uint ebp)
72 //if(eip < 0xC0000000 && eip > 0x1000)
74 // LogF("Backtrace: User - 0x%x\n", eip);
80 LogF("Backtrace: Data Area - 0x%x\n", eip);
86 LogF("Backtrace: Kernel Module - 0x%x\n", eip);
90 //str = Debug_GetSymbol(eip, &delta);
92 LogF("Backtrace: 0x%x", eip);
94 LogF("Backtrace: %s+0x%x", str, delta);
95 if(!MM_GetPhysAddr(ebp))
97 LogF("\nBacktrace: Invalid EBP, stopping\n");
102 while( MM_GetPhysAddr(ebp) && i < MAX_BACKTRACE )
104 //str = Debug_GetSymbol(*(Uint*)(ebp+4), &delta);
106 LogF(" >> 0x%x", *(Uint*)(ebp+4));
108 LogF(" >> %s+0x%x", str, delta);