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 := 0x00100000
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
45 # DEBUG=1 means VMM_DEBUG, VMM_INFO, and VMM_TRACE are enabled
46 # as are SERIAL_PRINT_DEBUG
51 # XED=1 means that libxed will be included
55 # and make world will build an empty boot package
60 JRLDEBUG= -DSERIAL_PRINT_DEBUG=1 -DSERIAL_PRINT_DEBUG_LEVEL=10 -DSERIAL_PRINT=1 -DVMM_DEBUG=1 -DVMM_INFO=1 -DVMM_TRACE=1
61 #-DDEBUG_SHADOW_PAGING -DDEBUG_CTRL_REGS -DDEBUG_INTERRUPTS -DDEBUG_IO
63 JRLDEBUG= -DSERIAL_PRINT_DEBUG=0 -DSERIAL_PRINT_DEBUG_LEVEL=999999 -DSERIAL_PRINT=0 -DVMM_DEBUG=0 -DVMM_INFO=0 -DVMM_TRACE=0
76 #Peter's compile flags
80 # This is wrong for current cygwin - no changes needed
82 # Figure out if we're compiling with cygwin, http://cygwin.com
85 #SYSTEM_NAME := $(shell uname -s)
86 #ifeq ($(findstring CYGWIN,$(SYSTEM_NAME)),CYGWIN)
88 #EXTRA_C_OPTS := -DNEED_UNDERSCORE -DGNU_WIN32
89 #EXTRA_NASM_OPTS := -DNEED_UNDERSCORE
90 #NON_ELF_SYSTEM := yes
91 #EXTRA_CC_USER_OPTS := -Dmain=geekos_main
97 # ----------------------------------------------------------------------
99 # Various options specifying how GeekOS should be built,
100 # what source files to build, which user programs to build,
101 # etc. This is generally the only section of the makefile
102 # that will need to be modified.
103 # ----------------------------------------------------------------------
105 # List of targets to build by default.
106 # These targets encompass everything needed to boot
108 ALL_TARGETS := vmm.img vm_kernel
111 # Kernel source files
112 KERNEL_C_SRCS := idt.c int.c trap.c irq.c io.c \
114 keyboard.c screen.c timer.c \
116 gdt.c tss.c segment.c \
121 debug.c vmm_stubs.c vm.c pci.c\
124 # Kernel object files built from C source files
125 KERNEL_C_OBJS := $(KERNEL_C_SRCS:%.c=geekos/%.o)
127 # Kernel assembly files
128 KERNEL_ASM_SRCS := lowlevel.asm
130 KERNEL_GAS_SRCS := testvm.s udivdi3.s
132 # Kernel object files build from assembler source files
133 KERNEL_ASM_OBJS := $(KERNEL_ASM_SRCS:%.asm=geekos/%.o)
135 KERNEL_GAS_OBJS := $(KERNEL_GAS_SRCS:%.s=geekos/%.o)
138 # All kernel object files
139 KERNEL_OBJS := $(KERNEL_C_OBJS) \
140 $(KERNEL_ASM_OBJS) $(KERNEL_GAS_OBJS)
142 # Common library source files.
143 # This library is linked into both the kernel and user programs.
144 # It provides string functions and generic printf()-style
146 COMMON_C_SRCS := fmtout.c string.c memmove.c
148 # Common library object files.
149 COMMON_C_OBJS := $(COMMON_C_SRCS:%.c=common/%.o)
151 VMM_ASM_SRCS := svm_lowlevel.asm \
154 VMM_ASM_OBJS := $(VMM_ASM_SRCS:%.asm=palacios/%.o)
157 VMM_C_SRCS := vm_guest.c \
158 svm.c svm_handler.c vmm.c vmm_util.c vmm_ctrl_regs.c \
159 vmcb.c vmm_mem.c vmm_paging.c vmm_io.c vmm_debug.c svm_io.c \
160 vmm_intr.c vmm_time.c\
161 vmm_shadow_paging.c vm_guest_mem.c \
162 vm_dev.c vmm_dev_mgr.c vmm_decoder.c \
163 svm_halt.c svm_pause.c
165 # vmx.c vmcs_gen.c vmcs.c
167 VMM_C_OBJS := $(VMM_C_SRCS:%.c=palacios/%.o)
169 VMM_OBJS := $(VMM_C_OBJS) $(VMM_ASM_OBJS)
171 DEVICE_C_SRCS := generic.c keyboard.c nvram.c timer.c simple_pic.c 8259a.c 8254.c serial.c
173 DEVICE_C_OBJS := $(DEVICE_C_SRCS:%.c=devices/%.o)
175 DEVICE_OBJS := $(DEVICE_C_OBJS)
180 V3LIBS := $(V3LIBS) -L../lib/xed -lxed
184 # ----------------------------------------------------------------------
186 # This section defines programs that are used to build GeekOS.
187 # ----------------------------------------------------------------------
189 # Uncomment if cross compiling
190 TARGET_CC_PREFIX := $(PROJECT_ROOT)/../devtools/i386/bin/i386-elf-
191 #TARGET_CC_PREFIX := i386-elf-
193 # Target C compiler. gcc 2.95.2 or later should work.
194 TARGET_CC := $(TARGET_CC_PREFIX)gcc
195 #TARGET_CC := $(TARGET_CC_PREFIX)gcc34 -m32
197 # Host C compiler. This is used to compile programs to execute on
198 # the host platform, not the target (x86) platform. On x86/ELF
199 # systems, such as Linux and FreeBSD, it can generally be the same
200 # as the target C compiler.
203 # Target linker. GNU ld is probably to only one that will work.
204 TARGET_LD := $(TARGET_CC_PREFIX)ld -melf_i386
207 TARGET_AR := $(TARGET_CC_PREFIX)ar
210 TARGET_RANLIB := $(TARGET_CC_PREFIX)ranlib
213 TARGET_NM := $(TARGET_CC_PREFIX)nm
216 TARGET_OBJCOPY := $(TARGET_CC_PREFIX)objcopy
218 # Nasm (http://nasm.sourceforge.net)
219 NASM := $(PROJECT_ROOT)/../devtools/bin/nasm
220 #NASM := /opt/vmm-tools/bin/nasm
224 # Tool to build PFAT filesystem images.
225 BUILDFAT := tools/builtFat.exe
230 # Pad a file so its size is a multiple of some unit (i.e., sector size)
231 PAD := $(PERL) $(PROJECT_ROOT)/scripts/pad
233 # Create a file filled with zeroes.
234 ZEROFILE := $(PERL) $(PROJECT_ROOT)/scripts/zerofile
236 # Calculate size of file in sectors
237 NUMSECS := $(PERL) $(PROJECT_ROOT)/scripts/numsecs
240 #Round a value up to a certain factor (hex values)
241 ROUND_UP_HEX := $(PERL) $(PROJECT_ROOT)/scripts/round_up_hex.pl
243 # ----------------------------------------------------------------------
245 # Options passed to the tools.
246 # ----------------------------------------------------------------------
248 # Flags used for all C source files
249 GENERAL_OPTS := -O -Wall $(EXTRA_C_OPTS) $(JRLDEBUG) $(PADFLAGS) $(LEIFLAGS) -fPIC
250 CC_GENERAL_OPTS := $(GENERAL_OPTS) -Werror
252 # Flags used for kernel C source files
253 CC_KERNEL_OPTS := -g -DGEEKOS -I$(PROJECT_ROOT)/include
255 # Flags used for VMM C source files
256 CC_VMM_OPTS := -g -I$(PROJECT_ROOT)/include -D__V3VEE__ -D__V3_32BIT__
258 # Flags used for VMM C ASM files
259 NASM_VMM_OPTS := -I$(PROJECT_ROOT)/src/palacios/ -f elf $(EXTRA_NASM_OPTS)
261 # Flags user for kernel assembly files
262 NASM_KERNEL_OPTS := -I$(PROJECT_ROOT)/src/geekos/ -f elf $(EXTRA_NASM_OPTS)
264 # Flags used for common library and libc source files
265 CC_USER_OPTS := -I$(PROJECT_ROOT)/include -I$(PROJECT_ROOT)/include/libc \
266 $(EXTRA_CC_USER_OPTS)
268 # Flags passed to objcopy program (strip unnecessary sections from kernel.exe)
269 OBJCOPY_FLAGS := -R .dynamic -R .note -R .comment
271 # ----------------------------------------------------------------------
273 # Describes how to compile the source files.
274 # ----------------------------------------------------------------------
276 # Compilation of kernel C source files
278 geekos/%.o : geekos/%.c
279 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $< -o geekos/$*.o
282 # Compilation of kernel assembly source files
283 geekos/%.o : geekos/%.asm
284 $(NASM) $(NASM_KERNEL_OPTS) $< -o geekos/$*.o
286 # Compilation of test VM
287 geekos/%.o : geekos/%.s
288 $(AS) $< -o geekos/$*.o
290 geekos/%.o : geekos/%.S
291 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) $< -o geekos/$*.o
293 # Compilation of common library C source files
294 common/%.o : common/%.c
295 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_USER_OPTS) $< -o common/$*.o
297 palacios/%.o : palacios/%.c
298 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_VMM_OPTS) $< -o palacios/$*.o
300 palacios/%.o : palacios/%.asm
301 $(NASM) $(NASM_VMM_OPTS) $< -o palacios/$*.o
303 devices/%.o : devices/%.c
304 $(TARGET_CC) -c $(CC_GENERAL_OPTS) $(CC_VMM_OPTS) $< -o devices/$*.o
306 devices/%.o : devices/%.asm
307 $(NASM) $(NASM_VMM_OPTS) $< -o devices/$*.o
309 # ----------------------------------------------------------------------
311 # Specifies files to be built
312 # ----------------------------------------------------------------------
314 # Default target - see definition of ALL_TARGETS in Configuration section
318 #geekos/vmx_lowlevel.o: $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm
321 # -I$(PROJECT_ROOT)/src/geekos/ \
322 # $(PROJECT_ROOT)/src/geekos/vmx_lowlevel.asm \
326 #geekos/test: geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o
327 # $(CC) geekos/test.o geekos/vmcs.o geekos/vmx_lowlevel.o -o geekos/test
329 # Standard floppy image - just boots the kernel
330 fd.img : geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin
331 cat geekos/fd_boot.bin geekos/setup.bin geekos/kernel.bin > _temp
337 $(PAD) vmm.img 1474560
340 (cd ../src/vmboot/rombios; make clean; make)
343 (cd ../src/vmboot/vgabios; make clean; make)
345 force_payload: force_rombios force_vgabios
347 ../scripts/make_payload.pl payload_none.txt vm_kernel
349 ../scripts/make_payload.pl payload_layout.txt vm_kernel
352 inter1: force_payload
355 world: inter1 vmm.img
357 # make ready to boot over PXE
359 cp vmm.img /tftpboot/vmm.img
362 /usr/local/qemu/bin/qemu-system-x86_64 -m 1024 -serial file:serial.out -cdrom puppy.iso -fda vmm.img
367 # Floppy boot sector (first stage boot loader).
368 geekos/fd_boot.bin : geekos/setup.bin geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/fd_boot.asm
370 -I$(PROJECT_ROOT)/src/geekos/ \
371 -DNUM_SETUP_SECTORS=`$(NUMSECS) geekos/setup.bin` \
372 -DNUM_KERN_SECTORS=`$(NUMSECS) geekos/kernel.bin` \
373 $(PROJECT_ROOT)/src/geekos/fd_boot.asm \
376 # Setup program (second stage boot loader).
377 geekos/setup.bin : geekos/kernel.bin $(PROJECT_ROOT)/src/geekos/setup.asm
379 -I$(PROJECT_ROOT)/src/geekos/ \
380 -DENTRY_POINT=0x`egrep 'Main$$' geekos/kernel.syms |awk '{print $$1}'` \
381 -DVMM_SIZE=`$(NUMSECS) geekos/kernel.bin` \
382 $(PROJECT_ROOT)/src/geekos/setup.asm \
386 # Loadable (flat) kernel image.
387 geekos/kernel.bin : geekos/kernel.exe
388 $(TARGET_OBJCOPY) $(OBJCOPY_FLAGS) -S -O binary geekos/kernel.exe geekos/kernel.bin
391 # The kernel executable and symbol map.
392 geekos/kernel.exe : $(KERNEL_OBJS) $(COMMON_C_OBJS) $(VMM_OBJS) $(DEVICE_OBJS) vm_kernel
393 $(TARGET_LD) -o geekos/kernel.exe -Ttext $(KERNEL_BASE_ADDR) -e $(KERNEL_ENTRY) \
394 $(KERNEL_OBJS) $(COMMON_C_OBJS) $(VMM_OBJS) $(DEVICE_OBJS) $(V3LIBS) -b binary vm_kernel
395 $(TARGET_NM) geekos/kernel.exe > geekos/kernel.syms
402 # $(PAD) vm_kernel 512
403 # @echo "VM kernel lives at 0x100000 and is" `$(NUMSECS) vm_kernel` "sectors long"
408 # Clean build directories of generated files
410 for d in geekos common libc user tools palacios devices; do \
411 (cd $$d && rm -f *); \
415 # Build header file dependencies, so source files are recompiled when
416 # header files they depend on are modified.
417 depend : $(GENERATED_LIBC_SRCS)
418 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
419 $(KERNEL_C_SRCS:%.c=$(PROJECT_ROOT)/src/geekos/%.c) \
420 | $(PERL) -n -e 's,^(\S),geekos/$$1,;print' \
422 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_USER_OPTS) \
423 $(COMMON_C_SRCS:%.c=$(PROJECT_ROOT)/src/common/%.c) \
424 | $(PERL) -n -e 's,^(\S),common/$$1,;print' \
426 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
427 $(VMM_C_SRCS:%.c=$(PROJECT_ROOT)/src/palacios/%.c) \
428 | $(PERL) -n -e 's,^(\S),palacios/$$1,;print' \
430 $(TARGET_CC) -M $(CC_GENERAL_OPTS) $(CC_KERNEL_OPTS) \
431 $(DEVICE_C_SRCS:%.c=$(PROJECT_ROOT)/src/devices/%.c) \
432 | $(PERL) -n -e 's,^(\S),devices/$$1,;print' \
435 # By default, there are no header file dependencies.