[BOOT] Multiboot compliant kernel which runs 64 bit code

2016-07-24 00:45:20 +02:00
parent 1f8d5b3482
commit df86be2973
13 changed files with 433 additions and 4 deletions
--- a/kernel/Link.ld
+++ b/kernel/Link.ld
@@ -0,0 +1,33 @@
+/* Guidance from http://wiki.osdev.org/Bare_Bones */
+ENTRY(_start)
+
+KERNEL_OFFSET = 0xFFFFFF8000000000;
+KERNEL_START = 0x100000;
+
+SECTIONS
+{
+  . = KERNEL_START + KERNEL_OFFSET;
+
+  .text : AT(ADDR(.text) - KERNEL_OFFSET)
+  {
+    *(.multiboot) /* Multiboot header must be in first 4k of elf */
+    *(.text)
+    . = ALIGN(4096);
+  }
+
+  .rodata BLOCK(4K) :AT(ADDR(.rodata) - KERNEL_OFFSET)
+  {
+    *(.rodata*)
+  }
+
+  .data BLOCK(4K) :AT(ADDR(.data) - KERNEL_OFFSET)
+  {
+    *(.data)
+  }
+
+  .bss BLOCK(4K) :AT(ADDR(.bss) - KERNEL_OFFSET)
+  {
+    *(.COMMON)
+    *(.bss)
+  }
+}