Map kernel to higher half

1 files changed, 16 insertions, 10 deletions

diff --git a/linker.ld b/linker.ld
index cd4139c..5ff3b62 100644
--- a/linker.ld
+++ b/linker.ld
@@ -1,31 +1,36 @@
 ENTRY(_start)
 OUTPUT_FORMAT(elf32-i386)
 
+VADDR_BASE = 0xc0000000;
+
 SECTIONS
 {
-    /* Begin putting sections at 1 MiB */
-    . = 1M;
- 
-    /* First put the multiboot header, as it is required to be put very early
+    /*
+     * First put the multiboot header, as it is required to be put very early
      * early in the image or the bootloader won't recognize the file format.
      */
+    . = 0;
+    _kernel_start = .;
     .multiboot : {
         *(.multiboot.header)
         *(.multiboot.text)
     }
 
-    .text : {
+    /* Begin putting sections at 1 MiB */
+    . = VADDR_BASE + 1M;
+
+    .text ALIGN(4K) : AT(ADDR(.text) - VADDR_BASE) {
         *(.text*)
     }
  
     /* Read-only data. */
-    .rodata : {
+    .rodata ALIGN(4K) : AT(ADDR(.rodata) - VADDR_BASE) {
         *(.rodata*)
     }
  
     /* Read-write data (initialized) */
-    .data : {
-        start_ctors = .;
+    .data ALIGN(4K) : AT(ADDR(.data) - VADDR_BASE) {
+        begin_ctors = .;
         KEEP(*(.init_array));   /* global constructors */
         end_ctors = .;
 
@@ -37,9 +42,10 @@ SECTIONS
     }
  
     /* Read-write data (uninitialized) and stack */
-    .bss : {
+    .bss ALIGN(4K) : AT(ADDR(.bss) - VADDR_BASE) {
+        *(.pages)
         *(.bss)
         *(.stack)
     }
- 
+    _kernel_end = .;
 }