1 # Makefile for GeekOS kernel, userspace, and tools
2 # Copyright (c) 2004,2005 David H. Hovemeyer <daveho@cs.umd.edu>
5 # This is free software. You are permitted to use,
6 # redistribute, and modify it as specified in the file "COPYING".
8 # Required software to build GeekOS:
9 # - GNU Make (http://www.gnu.org/software/make)
10 # - gcc 2.95.2 generating code for target (i386/ELF) and host platforms
11 # - nasm (http://nasm.sourceforge.net)
12 # - Perl5, AWK (any version), egrep
14 # Cygwin (http://cygwin.com) may be used to build GeekOS.
15 # Make sure that gcc, binutils, nasm, and perl are installed.
18 # - This makefile has been written carefully to work correctly
19 # with the -j (parallel make) option. I regularly use "make -j 2"
20 # to speed the build process on 2 processor systems.
23 # Base address of kernel
25 # Note: at top of memory minus three pages (GDT/TSS/IDT)
29 # Note that the code will initially load at 0x10000
31 # The setup code needs to copy it up to this address and jump there
33 KERNEL_BASE_ADDR := 0x00010000
35 # Kernel entry point function
36 KERNEL_ENTRY = $(SYM_PFX)Main
40 VPATH := $(PROJECT_ROOT)/src
42 #when -DNDEBUG is set the kassert functions are disabled
48 JRLDEBUG= -DSERIAL_PRINT_DEBUG=1 -DSERIAL_PRINT_DEBUG_LEVEL=10 -DSERIAL_PRINT=1 -DVMM_DEBUG=1 -DVMM_INFO=1 -DVMM_TRACE=1
50 JRLDEBUG= -DSERIAL_PRINT_DEBUG=0 -DSERIAL_PRINT_DEBUG_LEVEL=999999 -DSERIAL_PRINT=0 -DVMM_DEBUG=0 -DVMM_INFO=0 -DVMM_TRACE=0
55 #Peter's compile flags
59 # This is wrong for current cygwin - no changes needed
61 # Figure out if we're compiling with cygwin, http://cygwin.com
64 #SYSTEM_NAME := $(shell uname -s)
65 #ifeq ($(findstring CYGWIN,$(SYSTEM_NAME)),CYGWIN)
67 #EXTRA_C_OPTS := -DNEED_UNDERSCORE -DGNU_WIN32
68 #EXTRA_NASM_OPTS := -DNEED_UNDERSCORE
69 #NON_ELF_SYSTEM := yes
70 #EXTRA_CC_USER_OPTS := -Dmain=geekos_main
76 # ----------------------------------------------------------------------
78 # Various options specifying how GeekOS should be built,
79 # what source files to build, which user programs to build,
80 # etc. This is generally the only section of the makefile
81 # that will need to be modified.
82 # ----------------------------------------------------------------------
84 # List of targets to build by default.
85 # These targets encompass everything needed to boot
87 ALL_TARGETS := vmm.img vm_kernel
91 KERNEL_C_SRCS := idt.c int.c trap.c irq.c io.c \
93 keyboard.c screen.c timer.c \
95 gdt.c tss.c segment.c \
100 debug.c vmm_stubs.c vm.c pci.c\
103 # Kernel object files built from C source files
104 KERNEL_C_OBJS := $(KERNEL_C_SRCS:%.c=geekos/%.o)
106 # Kernel assembly files
107 KERNEL_ASM_SRCS := lowlevel.asm
109 KERNEL_GAS_SRCS := testvm.s
111 # Kernel object files build from assembler source files
112 KERNEL_ASM_OBJS := $(KERNEL_ASM_SRCS:%.asm=geekos/%.o)
114 KERNEL_GAS_OBJS := $(KERNEL_GAS_SRCS:%.s=geekos/%.o)
117 # All kernel object files
118 KERNEL_OBJS := $(KERNEL_C_OBJS) \
119 $(KERNEL_ASM_OBJS) $(KERNEL_GAS_OBJS)
121 # Common library source files.
122 # This library is linked into both the kernel and user programs.
123 # It provides string functions and generic printf()-style
125 COMMON_C_SRCS := fmtout.c string.c memmove.c
127 # Common library object files.
128 COMMON_C_OBJS := $(COMMON_C_SRCS:%.c=common/%.o)
130 VMM_ASM_SRCS := svm_lowlevel.asm \
133 VMM_ASM_OBJS := $(VMM_ASM_SRCS:%.asm=palacios/%.o)
136 VMM_C_SRCS := vm_guest.c \
137 svm.c svm_handler.c vmm.c vmm_util.c vmm_ctrl_regs.c \
138 vmcb.c vmm_mem.c vmm_paging.c vmm_io.c vmm_debug.c svm_io.c \
139 vmm_intr.c vmm_time.c\
140 vmm_shadow_paging.c vm_guest_mem.c \
141 vm_dev.c vmm_dev_mgr.c vmm_decoder.c \
144 # vmx.c vmcs_gen.c vmcs.c
146 VMM_C_OBJS := $(VMM_C_SRCS:%.c=palacios/%.o)
148 VMM_OBJS := $(VMM_C_OBJS) $(VMM_ASM_OBJS)
150 DEVICE_C_SRCS := generic.c keyboard.c nvram.c timer.c simple_pic.c 8259a.c 8254.c
152 DEVICE_C_OBJS := $(DEVICE_C_SRCS:%.c=devices/%.o)
154 DEVICE_OBJS := $(DEVICE_C_OBJS)
158 # ----------------------------------------------------------------------
160 # This section defines programs that are used to build GeekOS.
161 # ----------------------------------------------------------------------
163 # Uncomment if cross compiling
164 TARGET_CC_PREFIX := $(PROJECT_ROOT)/../devtools/i386/bin/i386-elf-
165 #TARGET_CC_PREFIX := i386-elf-
167 # Target C compiler. gcc 2.95.2 or later should work.
168 TARGET_CC := $(TARGET_CC_PREFIX)gcc
169 #TARGET_CC := $(TARGET_CC_PREFIX)gcc34 -m32
171 # Host C compiler. This is used to compile programs to execute on
172 # the host platform, not the target (x86) platform. On x86/ELF
173 # systems, such as Linux and FreeBSD, it can generally be the same
174 # as the target C compiler.
177 # Target linker. GNU ld is probably to only one that will work.
178 TARGET_LD := $(TARGET_CC_PREFIX)ld -melf_i386
181 TARGET_AR := $(TARGET_CC_PREFIX)ar
184 TARGET_RANLIB := $(TARGET_CC_PREFIX)ranlib
187 TARGET_NM := $(TARGET_CC_PREFIX)nm
190 TARGET_OBJCOPY := $(TARGET_CC_PREFIX)objcopy
192 # Nasm (http://nasm.sourceforge.net)
193 NASM := $(PROJECT_ROOT)/../devtools/bin/nasm
194 #NASM := /opt/vmm-tools/bin/nasm
198 # Tool to build PFAT filesystem images.
199 BUILDFAT := tools/builtFat.exe
204 # Pad a file so its size is a multiple of some unit (i.e., sector size)
205 PAD := $(PERL) $(PROJECT_ROOT)/scripts/pad
207 # Create a file filled with zeroes.
208 ZEROFILE := $(PERL) $(PROJECT_ROOT)/scripts/zerofile
210 # Calculate size of file in sectors
211 NUMSECS := $(PERL) $(PROJECT_ROOT)/scripts/numsecs
214 # ----------------------------------------------------------------------
216 # Options passed to the tools.
217 # ----------------------------------------------------------------------
219 # Flags used for all C source files
220 GENERAL_OPTS := -O -Wall $(EXTRA_C_OPTS) $(JRLDEBUG) $(PADFLAGS) -fPIC
221 CC_GENERAL_OPTS := $(GENERAL_OPTS) -Werror
223 # Flags used for kernel C source files
224 CC_KERNEL_OPTS := -g -DGEEKOS -I$(PROJECT_ROOT)/include
226 # Flags used for VMM C source files
227 CC_VMM_OPTS := -g -I$(PROJECT_ROOT)/include -D__V3VEE__ -D__V3_32BIT__
229 # Flags used for VMM C ASM files
230 NASM_VMM_OPTS := -I$(PROJECT_ROOT)/src/palacios/ -f elf $(EXTRA_NASM_OPTS)
232 # Flags user for kernel assembly files
233 NASM_KERNEL_OPTS := -I$(PROJECT_ROOT)/src/geekos/ -f elf $(EXTRA_NASM_OPTS)
235 # Flags used for common library and libc source files
236 CC_USER_OPTS := -I$(PROJECT_ROOT)/include -I$(PROJECT_ROOT)/include/libc \
237 $(EXTRA_CC_USER_OPTS)
239 # Flags passed to objcopy program (strip unnecessary sections from kernel.exe)
240 OBJCOPY_FLAGS := -R .dynamic -R .note -R .comment
242 # ----------------------------------------------------------------------
244 # Describes how to compile the source files.
245 # ----------------------------------------------------------------------
247 # Compilation of kernel C source files
249 geekos/%.o : geekos/%.c
250 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $< -o geekos/$*.o
253 # Compilation of kernel assembly source files
254 geekos/%.o : geekos/%.asm
255 $(NASM) $(NASM_KERNEL_OPTS) $< -o geekos/$*.o
257 # Compilation of test VM
258 geekos/%.o : geekos/%.s
259 $(AS) $< -o geekos/$*.o
261 geekos/%.o : geekos/%.S
262 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $< -o geekos/$*.o
264 # Compilation of common library C source files
265 common/%.o : common/%.c
266 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_USER_OPTS) $< -o common/$*.o
268 palacios/%.o : palacios/%.c
269 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_VMM_OPTS) $< -o palacios/$*.o
271 palacios/%.o : palacios/%.asm
272 $(NASM) $(NASM_VMM_OPTS) $< -o palacios/$*.o
274 devices/%.o : devices/%.c
275 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_VMM_OPTS) $< -o devices/$*.o
277 devices/%.o : devices/%.asm
278 $(NASM) $(NASM_VMM_OPTS) $< -o devices/$*.o
280 # ----------------------------------------------------------------------
282 # Specifies files to be built
283 # ----------------------------------------------------------------------
285 # Default target - see definition of ALL_TARGETS in Configuration section
289 #geekos/vmx_lowlevel.o: $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm
292 # -I$(PROJECT_ROOT)/src/geekos/ \
293 # $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm \
297 #geekos/test: geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o
298 # $(CC) geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o -o geekos/test
300 # Standard floppy image - just boots the kernel
301 fd.img : geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin vm_kernel
302 cat geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin > _temp
304 cat _temp vm_kernel > $@
308 $(PAD) vmm.img 1474560
311 (cd ../src/vmboot/rombios; make clean; make)
314 (cd ../src/vmboot/vgabios; make clean; make)
316 force_payload: force_rombios force_vgabios
317 ../scripts/make_payload.pl payload_layout.txt vm_kernel
319 inter1: force_payload
322 world: inter1 vmm.img
324 # make ready to boot over PXE
326 cp vmm.img /tftpboot/vmm.img
329 /usr/local/qemu/bin/qemu-system-x86_64 -m 1024 -serial file:serial.out -cdrom puppy.iso -fda vmm.img
334 # Floppy boot sector (first stage boot loader).
335 geekos/fd_boot.bin : geekos/setup.bin geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/fd_boot.asm vm_kernel
337 -I$(PROJECT_ROOT)/src/geekos/ \
338 -DNUM_SETUP_SECTORS=`$(NUMSECS) geekos/setup.bin` \
339 -DNUM_KERN_SECTORS=`$(NUMSECS) geekos/kernel.bin` \
340 -DNUM_VM_KERNEL_SECTORS=`$(NUMSECS) vm_kernel` \
341 $(PROJECT_ROOT)/src/geekos/fd_boot.asm \
344 # Setup program (second stage boot loader).
345 geekos/setup.bin : geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/setup.asm
347 -I$(PROJECT_ROOT)/src/geekos/ \
348 -DENTRY_POINT=0x`egrep 'Main$$' geekos/kernel.syms |awk '{print $$1}'` \
349 -DVMM_SIZE=`$(NUMSECS) geekos/kernel.bin` \
350 -DGUEST_SIZE=`$(NUMSECS) vm_kernel` \
351 $(PROJECT_ROOT)/src/geekos/setup.asm \
355 # Loadable (flat) kernel image.
356 geekos/kernel.bin : geekos/kernel.exe
357 $(TARGET_OBJCOPY) $(OBJCOPY_FLAGS) -S -O binary geekos/kernel.exe geekos/kernel.bin
360 # The kernel executable and symbol map.
361 geekos/kernel.exe : $(KERNEL_OBJS) $(COMMON_C_OBJS) $(VMM_OBJS) $(DEVICE_OBJS)
362 $(TARGET_LD) -o geekos/kernel.exe -Ttext $(KERNEL_BASE_ADDR) -e $(KERNEL_ENTRY) \
363 $(KERNEL_OBJS) $(COMMON_C_OBJS) $(VMM_OBJS) $(DEVICE_OBJS)
364 $(TARGET_NM) geekos/kernel.exe > geekos/kernel.syms
372 @echo "VM kernel lives at 0x100000 and is" `$(NUMSECS) vm_kernel` "sectors long"
377 # Clean build directories of generated files
379 for d in geekos common libc user tools palacios devices; do \
380 (cd $$d && rm -f *); \
384 # Build header file dependencies, so source files are recompiled when
385 # header files they depend on are modified.
386 depend : $(GENERATED_LIBC_SRCS)
387 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
388 $(KERNEL_C_SRCS:%.c=$(PROJECT_ROOT)/src/geekos/%.c) \
389 | $(PERL) -n -e 's,^(\S),geekos/$$1,;print' \
391 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_USER_OPTS) \
392 $(COMMON_C_SRCS:%.c=$(PROJECT_ROOT)/src/common/%.c) \
393 | $(PERL) -n -e 's,^(\S),common/$$1,;print' \
395 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
396 $(VMM_C_SRCS:%.c=$(PROJECT_ROOT)/src/palacios/%.c) \
397 | $(PERL) -n -e 's,^(\S),palacios/$$1,;print' \
399 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
400 $(DEVICE_C_SRCS:%.c=$(PROJECT_ROOT)/src/devices/%.c) \
401 | $(PERL) -n -e 's,^(\S),devices/$$1,;print' \
404 # By default, there are no header file dependencies.