feat: add initial impl of efi-stub and kernel

arch/x86/boot/setup.ld

@@ -0,0 +1,28 @@
+OUTPUT_FORMAT(binary)
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+
+SECTIONS {
+    . = 0;
+    
+    .bstext : {
+        *(.bstext)
+        . = 495;
+    } =0xffffffff
+    .text : {*(.text .text.*)}
+    . = ALIGN(16);
+    .rodata : {*(.rodata .rodata.*)}
+    . = ALIGN(16);
+    .data : {*(.data .data.*)}
+
+    setup_size = ALIGN(ABSOLUTE(.), 4096);
+
+    . = ALIGN(16);
+    .bss : {*(.bss) }
+    . = ALIGN(16);
+    
+    /DISCARD/ : {
+        *(.note*)
+    }
+
+}