2 * Acess2 - x86 Architecture
10 #define MAX_BACKTRACE 8 //!< Maximum distance to trace the stack backwards
13 extern void MM_PageFault(Uint Addr, Uint ErrorCode, tRegs *Regs);
14 extern void Threads_Dump();
17 void Error_Backtrace(Uint eip, Uint ebp);
21 * \fn void ErrorHandler(tRegs *Regs)
22 * \brief General Error Handler
24 void ErrorHandler(tRegs *Regs)
27 __asm__ __volatile__ ("cli");
29 if(Regs->int_num == 14)
31 __asm__ __volatile__ ("mov %%cr2, %0":"=r"(cr));
32 MM_PageFault( cr, Regs->err_code, Regs );
36 Warning("CPU Error %i, Code: 0x%x", Regs->int_num, Regs->err_code);
37 Warning(" CS:EIP = 0x%04x:%08x", Regs->cs, Regs->eip);
38 Warning(" SS:ESP = 0x%04x:%08x", Regs->ss, Regs->esp);
39 Warning(" EFLAGS = 0x%08x", Regs->eflags);
40 Warning(" EAX %08x EBX %08x", Regs->eax, Regs->ebx);
41 Warning(" ECX %08x EDX %08x", Regs->ecx, Regs->edx);
42 Warning(" ESP %08x EBP %08x", Regs->esp, Regs->ebp);
43 Warning(" ESI %08x EDI %08x", Regs->esi, Regs->edi);
44 Warning(" DS %04x ES %04x", Regs->ds, Regs->es);
45 Warning(" FS %04x GS %04x", Regs->fs, Regs->gs);
48 __asm__ __volatile__ ("mov %%cr0, %0":"=r"(cr));
49 Warning(" CR0: 0x%08x", cr);
50 __asm__ __volatile__ ("mov %%cr2, %0":"=r"(cr));
51 Warning(" CR2: 0x%08x", cr);
52 __asm__ __volatile__ ("mov %%cr3, %0":"=r"(cr));
53 Warning(" CR3: 0x%08x", cr);
55 // Print Stack Backtrace
56 Error_Backtrace(Regs->eip, Regs->ebp);
58 // Dump running threads
61 for(;;) __asm__ __volatile__ ("hlt");
64 * \fn void Error_Backtrace(Uint eip, Uint ebp)
65 * \brief Unrolls the stack to trace execution
67 void Error_Backtrace(Uint eip, Uint ebp)
73 //if(eip < 0xC0000000 && eip > 0x1000)
75 // LogF("Backtrace: User - 0x%x\n", eip);
81 LogF("Backtrace: Data Area - 0x%x\n", eip);
87 LogF("Backtrace: Kernel Module - 0x%x\n", eip);
91 //str = Debug_GetSymbol(eip, &delta);
93 LogF("Backtrace: 0x%x", eip);
95 LogF("Backtrace: %s+0x%x", str, delta);
96 if(!MM_GetPhysAddr(ebp))
98 LogF("\nBacktrace: Invalid EBP, stopping\n");
103 while( MM_GetPhysAddr(ebp) && i < MAX_BACKTRACE )
105 //str = Debug_GetSymbol(*(Uint*)(ebp+4), &delta);
107 LogF(" >> 0x%x", *(Uint*)(ebp+4));
109 LogF(" >> %s+0x%x", str, delta);