--- /dev/null
+# Makefile for GeekOS kernel, userspace, and tools
+# Copyright (c) 2004,2005 David H. Hovemeyer <daveho@cs.umd.edu>
+# $Revision: 1.2 $
+
+# This is free software. You are permitted to use,
+# redistribute, and modify it as specified in the file "COPYING".
+
+# Required software to build GeekOS:
+# - GNU Make (http://www.gnu.org/software/make)
+# - gcc 2.95.2 generating code for target (i386/ELF) and host platforms
+# - nasm (http://nasm.sourceforge.net)
+# - Perl5, AWK (any version), egrep
+#
+# Cygwin (http://cygwin.com) may be used to build GeekOS.
+# Make sure that gcc, binutils, nasm, and perl are installed.
+
+# NOTES:
+# - This makefile has been written carefully to work correctly
+# with the -j (parallel make) option. I regularly use "make -j 2"
+# to speed the build process on 2 processor systems.
+
+# Base address of kernel
+#
+# Note: at top of memory minus three pages (GDT/TSS/IDT)
+# minus maximum size
+#
+#
+# Note that the code will initially load at 0x10000
+#
+# The setup code needs to copy it up to this address and jump there
+#
+KERNEL_BASE_ADDR := 0x100000
+
+# Kernel entry point function
+KERNEL_ENTRY = $(SYM_PFX)Main
+
+
+PROJECT_ROOT := ..
+VPATH := $(PROJECT_ROOT)/src
+
+#when -DNDEBUG is set the kassert functions are disabled
+#JRLDEBUG=-DNDEBUG
+JRLDEBUG= -DSERIAL_PRINT_DEBUG=1 -DSERIAL_PRINT_DEBUG_LEVEL=1000 -DSERIAL_PRINT=1
+
+#
+#
+#Peter's compile flags
+PAD=
+
+# Figure out if we're compiling with cygwin, http://cygwin.com
+SYSTEM_NAME := $(shell uname -s)
+ifeq ($(findstring CYGWIN,$(SYSTEM_NAME)),CYGWIN)
+SYM_PFX := _
+EXTRA_C_OPTS := -DNEED_UNDERSCORE -DGNU_WIN32
+EXTRA_NASM_OPTS := -DNEED_UNDERSCORE
+NON_ELF_SYSTEM := yes
+EXTRA_CC_USER_OPTS := -Dmain=geekos_main
+endif
+
+
+
+# ----------------------------------------------------------------------
+# Configuration -
+# Various options specifying how GeekOS should be built,
+# what source files to build, which user programs to build,
+# etc. This is generally the only section of the makefile
+# that will need to be modified.
+# ----------------------------------------------------------------------
+
+# List of targets to build by default.
+# These targets encompass everything needed to boot
+# and run GeekOS.
+ALL_TARGETS := geekos/kernel.bin fd.img
+
+
+# Kernel source files
+KERNEL_C_SRCS := idt.c int.c trap.c irq.c io.c \
+ blockdev.c ide.c \
+ keyboard.c screen.c timer.c \
+ mem.c crc32.c \
+ gdt.c tss.c segment.c \
+ bget.c malloc.c \
+ synch.c kthread.c \
+ serial.c reboot.c \
+ paging.c \
+ main.c
+
+# Kernel object files built from C source files
+KERNEL_C_OBJS := $(KERNEL_C_SRCS:%.c=geekos/%.o)
+
+# Kernel assembly files
+KERNEL_ASM_SRCS := lowlevel.asm
+
+KERNEL_GAS_SRCS :=
+
+# Kernel object files build from assembler source files
+KERNEL_ASM_OBJS := $(KERNEL_ASM_SRCS:%.asm=geekos/%.o)
+
+KERNEL_GAS_OBJS := $(KERNEL_GAS_SRCS:%.s=geekos/%.o)
+
+
+# All kernel object files
+KERNEL_OBJS := $(KERNEL_C_OBJS) \
+ $(KERNEL_ASM_OBJS) $(KERNEL_GAS_OBJS)
+
+# Common library source files.
+# This library is linked into both the kernel and user programs.
+# It provides string functions and generic printf()-style
+# formatted output.
+COMMON_C_SRCS := fmtout.c string.c memmove.c
+
+# Common library object files.
+COMMON_C_OBJS := $(COMMON_C_SRCS:%.c=common/%.o)
+
+
+
+
+# ----------------------------------------------------------------------
+# Tools -
+# This section defines programs that are used to build GeekOS.
+# ----------------------------------------------------------------------
+
+# Uncomment if cross compiling
+#TARGET_CC_PREFIX := i386-elf-
+TARGET_CC_PREFIX := $(PROJECT_ROOT)/../../devtools/i386/bin/i386-elf-
+
+# Target C compiler. gcc 2.95.2 or later should work.
+TARGET_CC := $(TARGET_CC_PREFIX)gcc
+
+
+# Host C compiler. This is used to compile programs to execute on
+# the host platform, not the target (x86) platform. On x86/ELF
+# systems, such as Linux and FreeBSD, it can generally be the same
+# as the target C compiler.
+HOST_CC := gcc
+
+# Target linker. GNU ld is probably to only one that will work.
+TARGET_LD := $(TARGET_CC_PREFIX)ld -melf_i386
+
+# Target archiver
+TARGET_AR := $(TARGET_CC_PREFIX)ar
+
+# Target ranlib
+TARGET_RANLIB := $(TARGET_CC_PREFIX)ranlib
+
+# Target nm
+TARGET_NM := $(TARGET_CC_PREFIX)nm
+
+# Target objcopy
+TARGET_OBJCOPY := $(TARGET_CC_PREFIX)objcopy
+
+# Nasm (http://nasm.sourceforge.net)
+NASM := $(PROJECT_ROOT)/../../devtools/bin/nasm
+#NASM := /opt/vmm-tools/bin/nasm
+
+AS = as --32
+
+# Tool to build PFAT filesystem images.
+BUILDFAT := tools/builtFat.exe
+
+# Perl5 or later
+PERL := perl
+
+# Pad a file so its size is a multiple of some unit (i.e., sector size)
+PAD := $(PERL) $(PROJECT_ROOT)/scripts/pad
+
+# Create a file filled with zeroes.
+ZEROFILE := $(PERL) $(PROJECT_ROOT)/scripts/zerofile
+
+# Calculate size of file in sectors
+NUMSECS := $(PERL) $(PROJECT_ROOT)/scripts/numsecs
+
+
+# ----------------------------------------------------------------------
+# Definitions -
+# Options passed to the tools.
+# ----------------------------------------------------------------------
+
+# Flags used for all C source files
+GENERAL_OPTS := -O -Wall $(EXTRA_C_OPTS) $(JRLDEBUG) $(PADFLAGS)
+CC_GENERAL_OPTS := $(GENERAL_OPTS) -Werror
+
+# Flags used for kernel C source files
+CC_KERNEL_OPTS := -g -DGEEKOS -I$(PROJECT_ROOT)/include
+
+# Flags user for kernel assembly files
+NASM_KERNEL_OPTS := -I$(PROJECT_ROOT)/src/geekos/ -f elf $(EXTRA_NASM_OPTS)
+
+# Flags used for common library and libc source files
+CC_USER_OPTS := -I$(PROJECT_ROOT)/include -I$(PROJECT_ROOT)/include/libc \
+ $(EXTRA_CC_USER_OPTS)
+
+# Flags passed to objcopy program (strip unnecessary sections from kernel.exe)
+OBJCOPY_FLAGS := -R .dynamic -R .note -R .comment
+
+# ----------------------------------------------------------------------
+# Rules -
+# Describes how to compile the source files.
+# ----------------------------------------------------------------------
+
+# Compilation of kernel C source files
+
+geekos/%.o : geekos/%.c
+ $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $< -o geekos/$*.o
+
+
+# Compilation of kernel assembly source files
+geekos/%.o : geekos/%.asm
+ $(NASM) $(NASM_KERNEL_OPTS) $< -o geekos/$*.o
+
+# Compilation of test VM
+geekos/%.o : geekos/%.s
+ $(AS) $< -o geekos/$*.o
+
+geekos/%.o : geekos/%.S
+ $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $< -o geekos/$*.o
+
+# Compilation of common library C source files
+common/%.o : common/%.c
+ $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_USER_OPTS) $< -o common/$*.o
+
+# ----------------------------------------------------------------------
+# Targets -
+# Specifies files to be built
+# ----------------------------------------------------------------------
+
+# Default target - see definition of ALL_TARGETS in Configuration section
+all : $(ALL_TARGETS)
+
+# Standard floppy image - just boots the kernel
+fd.img : geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin
+ cat geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin > $@
+
+
+
+guest-img: fd.img
+ cp fd.img guest.img
+ $(PAD) guest.img 1474560
+
+guest-iso: guest-img
+
+ mkisofs -pad -b guest.img -R -o guest.iso guest.img
+
+
+
+# Floppy boot sector (first stage boot loader).
+geekos/fd_boot.bin : geekos/setup.bin geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/fd_boot.asm
+ $(NASM) -f bin \
+ -I$(PROJECT_ROOT)/src/geekos/ \
+ -DNUM_SETUP_SECTORS=`$(NUMSECS) geekos/setup.bin` \
+ -DNUM_KERN_SECTORS=`$(NUMSECS) geekos/kernel.bin` \
+ $(PROJECT_ROOT)/src/geekos/fd_boot.asm \
+ -o $@
+
+# Setup program (second stage boot loader).
+geekos/setup.bin : geekos/kernel.exe $(PROJECT_ROOT)/src/geekos/setup.asm
+ $(NASM) -f bin \
+ -I$(PROJECT_ROOT)/src/geekos/ \
+ -DENTRY_POINT=0x`egrep 'Main$$' geekos/kernel.syms |awk '{print $$1}'` \
+ $(PROJECT_ROOT)/src/geekos/setup.asm \
+ -o $@
+ $(PAD) $@ 512
+
+
+# Loadable (flat) kernel image.
+geekos/kernel.bin : geekos/kernel.exe
+ $(TARGET_OBJCOPY) $(OBJCOPY_FLAGS) -S -O binary geekos/kernel.exe geekos/kernel.bin
+ $(PAD) $@ 512
+
+# The kernel executable and symbol map.
+geekos/kernel.exe : $(KERNEL_OBJS) $(COMMON_C_OBJS)
+ $(TARGET_LD) -o geekos/kernel.exe -Ttext $(KERNEL_BASE_ADDR) -e $(KERNEL_ENTRY) \
+ $(KERNEL_OBJS) $(COMMON_C_OBJS)
+ $(TARGET_NM) geekos/kernel.exe > geekos/kernel.syms
+
+
+
+
+
+force:
+
+# Clean build directories of generated files
+clean :
+ for d in geekos common libc user tools; do \
+ (cd $$d && rm -f *); \
+ done
+
+
+# Build header file dependencies, so source files are recompiled when
+# header files they depend on are modified.
+depend : $(GENERATED_LIBC_SRCS)
+ $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
+ $(KERNEL_C_SRCS:%.c=$(PROJECT_ROOT)/src/geekos/%.c) \
+ | $(PERL) -n -e 's,^(\S),geekos/$$1,;print' \
+ > depend.mak
+ $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_USER_OPTS) \
+ $(COMMON_C_SRCS:%.c=$(PROJECT_ROOT)/src/common/%.c) \
+ | $(PERL) -n -e 's,^(\S),common/$$1,;print' \
+ >> depend.mak
+
+# By default, there are no header file dependencies.
+depend.mak :
+ touch $@
+
+include depend.mak