feat: initial booting kernel, copy libc stuff from myke

yak-kernel/linker.lds

@@ -3,7 +3,7 @@ OUTPUT_FORMAT(elf64-x86-64)
 OUTPUT_ARCH(i386:x86-64)
 
 /* We want the symbol _start to be our entry point */
-ENTRY(_start)
+ENTRY(kmain)
 
 /* Define the program headers we want so the bootloader gives us the right */
 /* MMU permissions */
@@ -40,6 +40,10 @@ SECTIONS
         *(.data .data.*)
     } :data
 
+    .limine_reqs : {
+        *(.limine_reqs)
+    } :data
+
     /* NOTE: .bss needs to be the last thing mapped to :data, otherwise lots of */
     /* unnecessary zeros will be written to the binary. */
     /* If you need, for example, .init_array and .fini_array, those should be placed */