first real commit

1 files changed, 44 insertions, 0 deletions

diff --git a/kernel/linker.ld b/kernel/linker.ld
new file mode 100644
index 0000000..9b47325
--- /dev/null
+++ b/kernel/linker.ld
@@ -0,0 +1,44 @@
+/* The bootloader will look at this image and start execution at the symbol
+   designated as the entry point. */
+ENTRY(_start)
+
+/* Tell where the various sections of the object files will be put in the final
+   kernel image. */
+SECTIONS
+{
+        /* Begin putting sections at 1 MiB, a conventional place for kernels to be
+           loaded at by the bootloader. */
+        . = 1M;
+
+        /* 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.
+           Next we'll put the .text section. */
+        .text BLOCK(4K) : ALIGN(4K)
+        {
+                *(.multiboot)
+                *(.text)
+        }
+
+        /* Read-only data. */
+        .rodata BLOCK(4K) : ALIGN(4K)
+        {
+                *(.rodata)
+        }
+
+        /* Read-write data (initialized) */
+        .data BLOCK(4K) : ALIGN(4K)
+        {
+                *(.data)
+        }
+
+        /* Read-write data (uninitialized) and stack */
+        .bss BLOCK(4K) : ALIGN(4K)
+        {
+                *(COMMON)
+                *(.bss)
+                *(.bootstrap_stack)
+        }
+
+        /* The compiler may produce other sections, by default it will put them in
+           a segment with the same name. Simply add stuff here as needed. */
+}