# Makefile for GeekOS kernel, userspace, and tools # # Northwestern University # (c) 2008, Jack Lange # (c) 2008, Peter Dinda # (c) 2008, Lei Xia # (c) 2008, The V3VEE Project # # Based on GeekOS Makefile: # Copyright (c) 2004,2005 David H. Hovemeyer # $Revision: 1.71 $ # 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 := 0x00100000 # Kernel entry point function KERNEL_ENTRY = $(SYM_PFX)Main PROJECT_ROOT := .. V3_ROOT := $(PROJECT_ROOT)/../palacios VPATH := $(PROJECT_ROOT)/src # #uIP, ON -- used, OFF -- not used # UIP=OFF # #LWIP, ON -- used, OFF -- not used # LWIP=OFF # # This is wrong for current cygwin - no changes needed # # Figure out if we're compiling with cygwin, http://cygwin.com # # #SYSTEM_NAME := $(shell uname -s) #ifeq ($(findstring CYGWIN,$(SYSTEM_NAME)),CYGWIN) #SYM_PFX := _ #EXTRA_C_OPTS := -DNEED_UNDERSCORE -DGNU_WIN32 #EXTRA_NASM_OPTS := -DNEED_UNDERSCORE #NON_ELF_SYSTEM := yes #EXTRA_CC_USER_OPTS := -Dmain=geekos_main #endif ifeq ($(PROFILE_VMM),1) EXTRA_C_OPTS:= -DPROFILE_VMM 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 := vmm.img # Kernel source files KERNEL_C_SRCS := idt.c int.c trap.c irq.c io.c \ blockdev.c ide.c ne2k.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 \ debug.c vmm_stubs.c vm.c pci.c\ queue.c socket.c net.c ring_buffer.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 := $(COMMON_C_SRCS:%.c=common/%.o) V3_LD_FLAGS := -L./palacios/ #V3_LIBS := -lxed -lv3vee V3_LIBS := ./palacios/libxed.a ./palacios/libv3vee.a ./palacios/libxed.a ./palacios/libv3vee.a V3_OBJS := ./palacios/libxed.a ./palacios/libv3vee.a ./palacios/vm_kernel ifeq ($(UIP),ON) UIP_C_SRCS := psock.c timer.c uip_arp.c uip.c uip-fw.c uiplib.c uip-neighbor.c uip-split.c resolv.c UIP_C_OBJS := $(UIP_C_SRCS:%.c=net/%.o) else UIP_C_SRCS := UIP_C_OBJS := endif ifeq ($(LWIP),ON) LWIP_OBJS := lwip CC_LWIP_OPTS := -I$(PROJECT_ROOT)/include/lwip -I$(PROJECT_ROOT)/include/lwip/ipv4 -I$(PROJECT_ROOT)/include/libc -DLWIP_DEBUG else LWIP_OBJS := CC_LWIP_OPTS := endif TCPSTACK_OBJS := $(UIP_C_OBJS) $(LWIP_OBJS) # ---------------------------------------------------------------------- # Tools - # This section defines programs that are used to build GeekOS. # ---------------------------------------------------------------------- # Uncomment if cross compiling TARGET_CC_PREFIX := $(PROJECT_ROOT)/../devtools/i386/bin/i386-elf- #TARGET_CC_PREFIX := i386-elf- # Target C compiler. gcc 2.95.2 or later should work. TARGET_CC := $(TARGET_CC_PREFIX)gcc #TARGET_CC := $(TARGET_CC_PREFIX)gcc34 -m32 # 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 FD_SECTORS_PER_TRACK := $(PERL) $(PROJECT_ROOT)/scripts/numsecs_per_track # ---------------------------------------------------------------------- # Definitions - # Options passed to the tools. # ---------------------------------------------------------------------- # Flags used for all C source files GENERAL_OPTS := -O -Wall $(EXTRA_C_OPTS) $(BOOT_FLAGS) -fPIC CC_GENERAL_OPTS := $(GENERAL_OPTS) -Werror # Flags used for kernel C source files CC_KERNEL_OPTS := -g -DGEEKOS -I$(PROJECT_ROOT)/include -I$(V3_ROOT)/include # Flags user for kernel assembly files NASM_KERNEL_OPTS := -I$(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 \ $(EXTRA_CC_USER_OPTS) -I$(V3_ROOT)/include # 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) $(CC_LWIP_OPTS) $< -o geekos/$*.o # Compilation of kernel assembly source files geekos/%.o : geekos/%.asm $(NASM) $(NASM_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 net/%.o : net/%.c $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_USER_OPTS) $< -o net/$*.o # ---------------------------------------------------------------------- # Targets - # Specifies files to be built # ---------------------------------------------------------------------- # Default target - see definition of ALL_TARGETS in Configuration section all : $(ALL_TARGETS) lwip: (cd ../src/lwip/build; make clean; make) #geekos/vmx_lowlevel.o: $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm # $(NASM) -O99 \ # -f elf \ # -I$(PROJECT_ROOT)/src/geekos/ \ # $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm \ # -o $@ #geekos/test: geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o # $(CC) geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o -o geekos/test # 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 > _temp $(PAD) _temp 512 cp _temp fd.img vmm.img: fd.img cp fd.img vmm.img $(PAD) vmm.img 1474560 # 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` \ -DSECTORS_PER_TRACK=`$(FD_SECTORS_PER_TRACK) geekos/kernel.bin geekos/setup.bin` \ $(PROJECT_ROOT)/src/geekos/fd_boot.asm \ -o $@ # Setup program (second stage boot loader). geekos/setup.bin : geekos/kernel.bin $(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}'` \ -DVMM_SIZE=`$(NUMSECS) geekos/kernel.bin` \ $(PROJECT_ROOT)/src/geekos/setup.asm \ -o $@ $(PAD) $@ 2048 # 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) $(TCPSTACK_OBJS) $(V3_OBJS) $(TARGET_LD) -o geekos/kernel.exe -Ttext $(KERNEL_BASE_ADDR) -e $(KERNEL_ENTRY) \ $(V3_LD_FLAGS) \ $(KERNEL_OBJS) $(COMMON_C_OBJS) $(TCPSTACK_OBJS) $(V3_LIBS) -b binary ./palacios/vm_kernel $(TARGET_NM) geekos/kernel.exe > geekos/kernel.syms force: #vm_kernel: force # $(PAD) vm_kernel 512 # @echo "VM kernel lives at 0x100000 and is" `$(NUMSECS) vm_kernel` "sectors long" # Clean build directories of generated files clean : for d in geekos common libc user tools net; 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