Added include folder with hos_types.h and hos_defines.h

Added mm build subdir with mm.c
Updated subdir.mak to build $(subdir)_all.o instead of $(subdir).o
Updated main Makefile to pass SUBDIR in to subdirectory builds, add $(HOS_TOPLEVEL)/include to compiler include path, and made the linker write a map file
Updated boot.asm to use the page_directory symbol from the .bss section defined in mm.o as its temporary stack area

git-svn-id: svn://anubis/hos/trunk@22 5b3e749e-e535-0410-8002-a9bb6afbdfca

kernel/boot/boot.asm

@@ -9,16 +9,13 @@
 
 %define VIRTUAL_OFFSET              0xE0000000          ; kernel virtual addr
 
-%define TEMPORARY_STACK_PHYSICAL    0x01000000-4        ; top of first 16MB
-%define TEMPORARY_STACK_VIRTUAL     TEMPORARY_STACK_PHYSICAL + VIRTUAL_OFFSET
-
 %define PAGE_SIZE                   0x1000              ; 4KB pages
 
 ; Symbols from the linker
 extern _end, _bss
 
 ; Symbols from C
-extern k_mbsave
+extern k_mbsave, page_directory
 
 ;-------------------------------------------------------
 [section .text]
@@ -66,7 +63,7 @@ segmented_start:
     mov     es, cx
     mov     gs, cx
     mov     fs, cx
-    mov     esp, TEMPORARY_STACK_VIRTUAL-4  ; set up temporary stack space
+    mov     esp, page_directory+PAGE_SIZE-4 ; set up temporary stack space
 
     mov     ax, 0x0700 + 'b'
     mov     [VIRTUAL_OFFSET+0xB8000+160*8+1*2], ax