1 # Makefile for GeekOS kernel, userspace, and tools
3 # Northwestern University
4 # (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
5 # (c) 2008, Peter Dinda <pdinda@northwestern.edu>
6 # (c) 2008, Lei Xia <xiaxlei@gmail.com>
7 # (c) 2008, The V3VEE Project <http://www.v3vee.org>
9 # Based on GeekOS Makefile:
10 # Copyright (c) 2004,2005 David H. Hovemeyer <daveho@cs.umd.edu>
14 # This is free software. You are permitted to use,
15 # redistribute, and modify it as specified in the file "COPYING".
17 # Required software to build GeekOS:
18 # - GNU Make (http://www.gnu.org/software/make)
19 # - gcc 2.95.2 generating code for target (i386/ELF) and host platforms
20 # - nasm (http://nasm.sourceforge.net)
21 # - Perl5, AWK (any version), egrep
23 # Cygwin (http://cygwin.com) may be used to build GeekOS.
24 # Make sure that gcc, binutils, nasm, and perl are installed.
27 # - This makefile has been written carefully to work correctly
28 # with the -j (parallel make) option. I regularly use "make -j 2"
29 # to speed the build process on 2 processor systems.
32 # Base address of kernel
34 # Note: at top of memory minus three pages (GDT/TSS/IDT)
38 # Note that the code will initially load at 0x10000
40 # The setup code needs to copy it up to this address and jump there
42 KERNEL_BASE_ADDR := 0x00100000
44 # Kernel entry point function
45 KERNEL_ENTRY = $(SYM_PFX)Main
49 V3_ROOT := $(PROJECT_ROOT)/../palacios
50 VPATH := $(PROJECT_ROOT)/src
55 #uIP, ON -- used, OFF -- not used
60 #LWIP, ON -- used, OFF -- not used
66 # This is wrong for current cygwin - no changes needed
68 # Figure out if we're compiling with cygwin, http://cygwin.com
71 #SYSTEM_NAME := $(shell uname -s)
72 #ifeq ($(findstring CYGWIN,$(SYSTEM_NAME)),CYGWIN)
74 #EXTRA_C_OPTS := -DNEED_UNDERSCORE -DGNU_WIN32
75 #EXTRA_NASM_OPTS := -DNEED_UNDERSCORE
76 #NON_ELF_SYSTEM := yes
77 #EXTRA_CC_USER_OPTS := -Dmain=geekos_main
81 ifeq ($(PROFILE_VMM),1)
82 EXTRA_C_OPTS:= -DPROFILE_VMM
86 # ----------------------------------------------------------------------
88 # Various options specifying how GeekOS should be built,
89 # what source files to build, which user programs to build,
90 # etc. This is generally the only section of the makefile
91 # that will need to be modified.
92 # ----------------------------------------------------------------------
94 # List of targets to build by default.
95 # These targets encompass everything needed to boot
97 ALL_TARGETS := vmm.img
100 # Kernel source files
101 KERNEL_C_SRCS := idt.c int.c trap.c irq.c io.c \
102 blockdev.c ide.c ne2k.c \
103 keyboard.c screen.c timer.c \
105 gdt.c tss.c segment.c \
110 debug.c vmm_stubs.c vm.c pci.c\
111 queue.c socket.c net.c ring_buffer.c \
115 # Kernel object files built from C source files
116 KERNEL_C_OBJS := $(KERNEL_C_SRCS:%.c=geekos/%.o)
118 # Kernel assembly files
119 KERNEL_ASM_SRCS := lowlevel.asm
123 # Kernel object files build from assembler source files
124 KERNEL_ASM_OBJS := $(KERNEL_ASM_SRCS:%.asm=geekos/%.o)
126 KERNEL_GAS_OBJS := $(KERNEL_GAS_SRCS:%.s=geekos/%.o)
129 # All kernel object files
130 KERNEL_OBJS := $(KERNEL_C_OBJS) \
131 $(KERNEL_ASM_OBJS) $(KERNEL_GAS_OBJS)
133 # Common library source files.
134 # This library is linked into both the kernel and user programs.
135 # It provides string functions and generic printf()-style
137 COMMON_C_SRCS := fmtout.c string.c memmove.c
139 # Common library object files.
140 COMMON_C_OBJS := $(COMMON_C_SRCS:%.c=common/%.o)
143 V3_LD_FLAGS := -L./palacios/
144 #V3_LIBS := -lxed -lv3vee
145 V3_LIBS := ./palacios/libxed.a ./palacios/libv3vee.a ./palacios/libxed.a ./palacios/libv3vee.a
146 V3_OBJS := ./palacios/libxed.a ./palacios/libv3vee.a ./palacios/vm_kernel
149 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
150 UIP_C_OBJS := $(UIP_C_SRCS:%.c=net/%.o)
159 CC_LWIP_OPTS := -I$(PROJECT_ROOT)/include/lwip -I$(PROJECT_ROOT)/include/lwip/ipv4 -I$(PROJECT_ROOT)/include/libc -DLWIP_DEBUG
166 TCPSTACK_OBJS := $(UIP_C_OBJS) $(LWIP_OBJS)
169 # ----------------------------------------------------------------------
171 # This section defines programs that are used to build GeekOS.
172 # ----------------------------------------------------------------------
174 # Uncomment if cross compiling
175 TARGET_CC_PREFIX := $(PROJECT_ROOT)/../devtools/i386/bin/i386-elf-
176 #TARGET_CC_PREFIX := i386-elf-
178 # Target C compiler. gcc 2.95.2 or later should work.
179 TARGET_CC := $(TARGET_CC_PREFIX)gcc
180 #TARGET_CC := $(TARGET_CC_PREFIX)gcc34 -m32
182 # Host C compiler. This is used to compile programs to execute on
183 # the host platform, not the target (x86) platform. On x86/ELF
184 # systems, such as Linux and FreeBSD, it can generally be the same
185 # as the target C compiler.
188 # Target linker. GNU ld is probably to only one that will work.
189 TARGET_LD := $(TARGET_CC_PREFIX)ld -melf_i386
192 TARGET_AR := $(TARGET_CC_PREFIX)ar
195 TARGET_RANLIB := $(TARGET_CC_PREFIX)ranlib
198 TARGET_NM := $(TARGET_CC_PREFIX)nm
201 TARGET_OBJCOPY := $(TARGET_CC_PREFIX)objcopy
203 # Nasm (http://nasm.sourceforge.net)
204 NASM := $(PROJECT_ROOT)/../devtools/bin/nasm
205 #NASM := /opt/vmm-tools/bin/nasm
209 # Tool to build PFAT filesystem images.
210 BUILDFAT := tools/builtFat.exe
215 # Pad a file so its size is a multiple of some unit (i.e., sector size)
216 PAD := $(PERL) $(PROJECT_ROOT)/scripts/pad
218 # Create a file filled with zeroes.
219 ZEROFILE := $(PERL) $(PROJECT_ROOT)/scripts/zerofile
221 # Calculate size of file in sectors
222 NUMSECS := $(PERL) $(PROJECT_ROOT)/scripts/numsecs
225 FD_SECTORS_PER_TRACK := $(PERL) $(PROJECT_ROOT)/scripts/numsecs_per_track
228 # ----------------------------------------------------------------------
230 # Options passed to the tools.
231 # ----------------------------------------------------------------------
233 # Flags used for all C source files
234 GENERAL_OPTS := -O -Wall $(EXTRA_C_OPTS) $(BOOT_FLAGS) -fPIC
235 CC_GENERAL_OPTS := $(GENERAL_OPTS) -Werror
237 # Flags used for kernel C source files
238 CC_KERNEL_OPTS := -g -DGEEKOS -I$(PROJECT_ROOT)/include -I$(V3_ROOT)/include
241 # Flags user for kernel assembly files
242 NASM_KERNEL_OPTS := -I$(PROJECT_ROOT)/src/geekos/ -f elf $(EXTRA_NASM_OPTS)
244 # Flags used for common library and libc source files
245 CC_USER_OPTS := -I$(PROJECT_ROOT)/include -I$(PROJECT_ROOT)/include/libc \
246 $(EXTRA_CC_USER_OPTS) -I$(V3_ROOT)/include
248 # Flags passed to objcopy program (strip unnecessary sections from kernel.exe)
249 OBJCOPY_FLAGS := -R .dynamic -R .note -R .comment
251 # ----------------------------------------------------------------------
253 # Describes how to compile the source files.
254 # ----------------------------------------------------------------------
256 # Compilation of kernel C source files
258 geekos/%.o : geekos/%.c
259 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $(CC_LWIP_OPTS) $< -o geekos/$*.o
262 # Compilation of kernel assembly source files
263 geekos/%.o : geekos/%.asm
264 $(NASM) $(NASM_KERNEL_OPTS) $< -o geekos/$*.o
267 # Compilation of common library C source files
268 common/%.o : common/%.c
269 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_USER_OPTS) $< -o common/$*.o
273 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_USER_OPTS) $< -o net/$*.o
275 # ----------------------------------------------------------------------
277 # Specifies files to be built
278 # ----------------------------------------------------------------------
280 # Default target - see definition of ALL_TARGETS in Configuration section
285 (cd ../src/lwip/build; make clean; make)
288 #geekos/vmx_lowlevel.o: $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm
291 # -I$(PROJECT_ROOT)/src/geekos/ \
292 # $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm \
296 #geekos/test: geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o
297 # $(CC) geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o -o geekos/test
299 # Standard floppy image - just boots the kernel
300 fd.img : geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin
301 cat geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin > _temp
308 $(PAD) vmm.img 1474560
315 # Floppy boot sector (first stage boot loader).
316 geekos/fd_boot.bin : geekos/setup.bin geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/fd_boot.asm
318 -I$(PROJECT_ROOT)/src/geekos/ \
319 -DNUM_SETUP_SECTORS=`$(NUMSECS) geekos/setup.bin` \
320 -DNUM_KERN_SECTORS=`$(NUMSECS) geekos/kernel.bin` \
321 -DSECTORS_PER_TRACK=`$(FD_SECTORS_PER_TRACK) geekos/kernel.bin geekos/setup.bin` \
322 $(PROJECT_ROOT)/src/geekos/fd_boot.asm \
325 # Setup program (second stage boot loader).
326 geekos/setup.bin : geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/setup.asm
328 -I$(PROJECT_ROOT)/src/geekos/ \
329 -DENTRY_POINT=0x`egrep 'Main$$' geekos/kernel.syms |awk '{print $$1}'` \
330 -DVMM_SIZE=`$(NUMSECS) geekos/kernel.bin` \
331 $(PROJECT_ROOT)/src/geekos/setup.asm \
335 # Loadable (flat) kernel image.
336 geekos/kernel.bin : geekos/kernel.exe
337 $(TARGET_OBJCOPY) $(OBJCOPY_FLAGS) -S -O binary geekos/kernel.exe geekos/kernel.bin
340 # The kernel executable and symbol map.
341 geekos/kernel.exe : $(KERNEL_OBJS) $(COMMON_C_OBJS) $(TCPSTACK_OBJS) $(V3_OBJS)
342 $(TARGET_LD) -o geekos/kernel.exe -Ttext $(KERNEL_BASE_ADDR) -e $(KERNEL_ENTRY) \
344 $(KERNEL_OBJS) $(COMMON_C_OBJS) $(TCPSTACK_OBJS) $(V3_LIBS) -b binary ./palacios/vm_kernel
345 $(TARGET_NM) geekos/kernel.exe > geekos/kernel.syms
352 # $(PAD) vm_kernel 512
353 # @echo "VM kernel lives at 0x100000 and is" `$(NUMSECS) vm_kernel` "sectors long"
358 # Clean build directories of generated files
360 for d in geekos common libc user tools net; do \
361 (cd $$d && rm -f *); \
365 # Build header file dependencies, so source files are recompiled when
366 # header files they depend on are modified.
367 depend : $(GENERATED_LIBC_SRCS)
368 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
369 $(KERNEL_C_SRCS:%.c=$(PROJECT_ROOT)/src/geekos/%.c) \
370 | $(PERL) -n -e 's,^(\S),geekos/$$1,;print' \
372 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_USER_OPTS) \
373 $(COMMON_C_SRCS:%.c=$(PROJECT_ROOT)/src/common/%.c) \
374 | $(PERL) -n -e 's,^(\S),common/$$1,;print' \
378 # By default, there are no header file dependencies.