Kernel: Move dump_backtrace() out of arch.

I discovered __builtin_frame_address()

kernel/Makefile

@@ -36,6 +36,7 @@ kernel/font.o			\
 kernel/Input.o			\
 kernel/kernel.o			\
 kernel/kmalloc.o		\
+kernel/Panic.o			\
 kernel/PIC.o			\
 kernel/PIT.o			\
 kernel/RTC.o			\

kernel/arch/i386/make.config

@@ -9,6 +9,5 @@ $(ARCHDIR)/boot.o		\
 $(ARCHDIR)/CPUID.o		\
 $(ARCHDIR)/IDT.o		\
 $(ARCHDIR)/MMU.o		\
-$(ARCHDIR)/Panic.o		\
 $(ARCHDIR)/VESA.o		\
  

kernel/kernel/Panic.cpp

@@ -8,11 +8,10 @@ namespace Kernel
 		struct stackframe
 		{
 			stackframe* ebp;
-			uint32_t eip;
+			uint64_t eip;
 		};
 
-		stackframe* frame;
-		asm volatile("movl %%ebp, %0" : "=r"(frame));
+		stackframe* frame = (stackframe*)__builtin_frame_address(0);
 		BAN::Formatter::print(Serial::serial_putc, "\e[36mStack trace:\r\n");
 		while (frame)
 		{