3 # Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
5 # This file may be distributed under the terms of the GNU LGPLv3 license.
8 VERSION=pre-1.6.4-$(shell date +"%Y%m%d_%H%M%S")-$(shell hostname)
14 SRCBOTH=misc.c stacks.c pmm.c output.c util.c block.c floppy.c ata.c mouse.c \
15 kbd.c pci.c serial.c clock.c pic.c cdrom.c ps2port.c smp.c resume.c \
16 pnpbios.c pirtable.c vgahooks.c ramdisk.c pcibios.c blockcmd.c \
17 usb.c usb-uhci.c usb-ohci.c usb-ehci.c usb-hid.c usb-msc.c \
18 virtio-ring.c virtio-pci.c virtio-blk.c apm.c ahci.c
19 SRC16=$(SRCBOTH) system.c disk.c font.c
20 SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
21 acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
22 lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c \
23 biostables.c xen.c bmp.c
24 SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
26 cc-option=$(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`" \
27 ; then echo "$(2)"; else echo "$(3)"; fi ;)
29 # Default compiler flags
30 COMMONCFLAGS = -I$(OUT) -Os -MD \
31 -Wall -Wno-strict-aliasing -Wold-style-definition \
32 $(call cc-option,$(CC),-Wtype-limits,) \
33 -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \
34 -mrtd -minline-all-stringops \
35 -freg-struct-return -ffreestanding -fno-delete-null-pointer-checks \
36 -ffunction-sections -fdata-sections -fno-common
37 COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
38 COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
39 COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
41 CFLAGS32FLAT = $(COMMONCFLAGS) -DMODE16=0 -DMODESEGMENT=0 -g -fomit-frame-pointer
42 CFLAGSSEG = $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \
43 $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \
44 $(call cc-option,$(CC),-fno-tree-switch-conversion,)
45 CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g -fomit-frame-pointer
46 CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \
47 $(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline)
48 CFLAGS16 = $(CFLAGS16INC) -g -fomit-frame-pointer
50 all: $(OUT) $(OUT)bios.bin
52 # Run with "make V=1" to see the actual compile commands
57 MAKEFLAGS += --no-print-directory
64 .PHONY : all clean distclean FORCE
69 ################ Build rules
71 # Verify the gcc configuration and test if -fwhole-program works.
72 TESTGCC:=$(shell CC="$(CC)" LD="$(LD)" tools/test-gcc.sh)
73 ifeq "$(TESTGCC)" "-1"
74 $(error "Please upgrade GCC and/or binutils")
81 # Do a whole file compile - three methods are supported.
82 ifeq "$(COMPSTRAT)" "1"
83 # First method - use -fwhole-program without -combine.
85 @echo " Compiling whole program $3"
86 $(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
87 $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -c $3.tmp.c -o $3
90 ifeq "$(COMPSTRAT)" "2"
91 # Second menthod - don't use -fwhole-program at all.
93 @echo " Compiling whole program $3"
94 $(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
95 $(Q)$(CC) $1 -c $3.tmp.c -o $3
98 # Third (and preferred) method - use -fwhole-program with -combine
100 @echo " Compiling whole program $3"
101 $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -combine -c $2 -o $3
107 @echo " Stripping $@"
108 $(Q)$(STRIP) $< -o $@
111 @echo " Compiling to assembler $@"
112 $(Q)$(CC) $(CFLAGS16INC) -S -c $< -o $@
115 @echo " Precompiling $@"
116 $(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
118 $(OUT)asm-offsets.s: $(OUT)autoconf.h
120 $(OUT)asm-offsets.h: $(OUT)asm-offsets.s
121 @echo " Generating offset file $@"
122 $(Q)./tools/gen-offsets.sh $< $@
125 $(OUT)ccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16) -S, $(addprefix src/, $(SRC16)),$@)
127 $(OUT)code32seg.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
129 $(OUT)ccode32flat.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
131 $(OUT)code16.o: romlayout.S $(OUT)ccode.16.s $(OUT)asm-offsets.h
132 @echo " Compiling (16bit) $@"
133 $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ $< -o $@
135 $(OUT)romlayout16.lds: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)code16.o tools/layoutrom.py
136 @echo " Building ld scripts (version \"$(VERSION)\")"
137 $(Q)echo 'const char VERSION[] = "$(VERSION)";' > $(OUT)version.c
138 $(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
139 $(Q)$(LD) -melf_i386 -r $(OUT)ccode32flat.o $(OUT)version.o -o $(OUT)code32flat.o
140 $(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump
141 $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
142 $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
143 $(Q)./tools/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds
145 # These are actually built by tools/layoutrom.py above, but by pulling them
146 # into an extra rule we prevent make -j from spawning layoutrom.py 4 times.
147 $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o: $(OUT)romlayout16.lds
149 $(OUT)rom16.o: $(OUT)code16.o $(OUT)romlayout16.lds
151 $(Q)$(LD) -T $(OUT)romlayout16.lds $< -o $@
153 $(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
155 $(Q)$(LD) -T $(OUT)romlayout32seg.lds $< -o $@
157 $(OUT)rom.o: $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o $(OUT)romlayout32flat.lds
159 $(Q)$(LD) -T $(OUT)romlayout32flat.lds $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o -o $@
161 $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
163 $(Q)$(OBJDUMP) -thr $< > $<.objdump
164 $(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw
165 $(Q)./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
166 $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
169 ################ VGA build rules
172 SRCVGA=src/output.c src/util.c vgasrc/vgabios.c vgasrc/vgafb.c \
173 vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/vbe.c \
174 vgasrc/stdvga.c vgasrc/clext.c vgasrc/bochsvga.c vgasrc/geodelx.c
176 CFLAGS16VGA = $(CFLAGS16INC) -g -Isrc
178 $(OUT)vgaccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16VGA) -S, $(SRCVGA),$@)
180 $(OUT)vgalayout16.o: vgaentry.S $(OUT)vgaccode.16.s $(OUT)asm-offsets.h
181 @echo " Compiling (16bit) $@"
182 $(Q)$(CC) $(CFLAGS16INC) -c -D__ASSEMBLY__ -Isrc $< -o $@
184 $(OUT)vgarom.o: $(OUT)vgalayout16.o $(OUT)vgalayout.lds
186 $(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgalayout16.o -o $@
188 $(OUT)vgabios.bin.raw: $(OUT)vgarom.o
189 @echo " Extracting binary $@"
190 $(Q)$(OBJCOPY) -O binary $< $@
192 $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
193 @echo " Finalizing rom $@"
194 $(Q)./tools/buildrom.py $< $@
196 ####### dsdt build rules
197 src/%.hex: src/%.dsl ./tools/acpi_extract_preprocess.py ./tools/acpi_extract.py
198 @echo "Compiling DSDT"
199 $(Q)cpp -P $< > $(OUT)$*.dsl.i.orig
200 $(Q)./tools/acpi_extract_preprocess.py $(OUT)$*.dsl.i.orig > $(OUT)$*.dsl.i
201 $(Q)iasl -l -tc -p $(OUT)$* $(OUT)$*.dsl.i
202 $(Q)./tools/acpi_extract.py $(OUT)$*.lst > $(OUT)$*.off
203 $(Q)cat $(OUT)$*.off > $@
205 $(OUT)ccode32flat.o: src/acpi-dsdt.hex src/ssdt-proc.hex src/ssdt-pcihp.hex
207 ####### Kconfig rules
208 export HOSTCC := $(CC)
209 export CONFIG_SHELL := sh
210 export KCONFIG_AUTOHEADER := autoconf.h
211 export KCONFIG_CONFIG := $(CURDIR)/.config
213 $(OUT)autoconf.h : $(KCONFIG_CONFIG)
214 $(Q)$(MAKE) silentoldconfig
217 $(Q)$(MAKE) defconfig
220 $(Q)mkdir -p $(OUT)/tools/kconfig/lxdialog
221 $(Q)mkdir -p $(OUT)/include/config
222 $(Q)$(MAKE) -C $(OUT) -f $(CURDIR)/tools/kconfig/Makefile srctree=$(CURDIR) src=tools/kconfig obj=tools/kconfig Q=$(Q) Kconfig=$(CURDIR)/src/Kconfig $@
225 $(Q)$(MAKE) -f $(CURDIR)/tools/kconfig/Makefile help
227 ####### Generic rules
232 $(Q)rm -f .config .config.old