1# SeaBIOS build system 2# 3# Copyright (C) 2008-2012 Kevin O'Connor <kevin@koconnor.net> 4# 5# This file may be distributed under the terms of the GNU LGPLv3 license. 6 7# Output directory 8OUT=out/ 9 10# Common command definitions 11export HOSTCC := $(CC) 12export CONFIG_SHELL := sh 13export KCONFIG_AUTOHEADER := autoconf.h 14export KCONFIG_CONFIG := $(CURDIR)/.config 15export LC_ALL := C 16CROSS_PREFIX= 17ifneq ($(CROSS_PREFIX),) 18CC=$(CROSS_PREFIX)gcc 19endif 20AS=$(CROSS_PREFIX)as 21LD=$(CROSS_PREFIX)ld 22OBJCOPY=$(CROSS_PREFIX)objcopy 23OBJDUMP=$(CROSS_PREFIX)objdump 24STRIP=$(CROSS_PREFIX)strip 25PYTHON=python 26CPP=cpp 27IASL:=iasl 28LD32BIT_FLAG:=-melf_i386 29 30# Source files 31SRCBOTH=misc.c stacks.c output.c string.c block.c cdrom.c disk.c mouse.c kbd.c \ 32 system.c serial.c sercon.c clock.c resume.c pnpbios.c vgahooks.c pcibios.c \ 33 apm.c cp437.c \ 34 hw/pci.c hw/timer.c hw/rtc.c hw/dma.c hw/pic.c hw/ps2port.c hw/serialio.c \ 35 hw/usb.c hw/usb-uhci.c hw/usb-ohci.c hw/usb-ehci.c \ 36 hw/usb-hid.c hw/usb-msc.c hw/usb-uas.c \ 37 hw/blockcmd.c hw/floppy.c hw/ata.c hw/ramdisk.c \ 38 hw/lsi-scsi.c hw/esp-scsi.c hw/megasas.c hw/mpt-scsi.c 39SRC16=$(SRCBOTH) 40SRC32FLAT=$(SRCBOTH) post.c e820map.c malloc.c romfile.c x86.c optionroms.c \ 41 pmm.c font.c boot.c bootsplash.c jpeg.c bmp.c tcgbios.c sha1.c \ 42 hw/pcidevice.c hw/ahci.c hw/pvscsi.c hw/usb-xhci.c hw/usb-hub.c hw/sdcard.c \ 43 fw/coreboot.c fw/lzmadecode.c fw/multiboot.c fw/csm.c fw/biostables.c \ 44 fw/paravirt.c fw/shadow.c fw/pciinit.c fw/smm.c fw/smp.c fw/mtrr.c fw/xen.c \ 45 fw/acpi.c fw/mptable.c fw/pirtable.c fw/smbios.c fw/romfile_loader.c \ 46 hw/virtio-ring.c hw/virtio-pci.c hw/virtio-blk.c hw/virtio-scsi.c \ 47 hw/tpm_drivers.c hw/nvme.c 48SRC32SEG=string.c output.c pcibios.c apm.c stacks.c hw/pci.c hw/serialio.c 49DIRS=src src/hw src/fw vgasrc 50 51# Default compiler flags 52cc-option=$(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`" \ 53 ; then echo "$(2)"; else echo "$(3)"; fi ;) 54 55EXTRAVERSION= 56 57CPPFLAGS = -P -MD -MT $@ 58 59COMMONCFLAGS := -I$(OUT) -Isrc -Os -MD -g \ 60 -Wall -Wno-strict-aliasing -Wold-style-definition \ 61 $(call cc-option,$(CC),-Wtype-limits,) \ 62 -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \ 63 -minline-all-stringops -fomit-frame-pointer \ 64 -freg-struct-return -ffreestanding -fno-delete-null-pointer-checks \ 65 -ffunction-sections -fdata-sections -fno-common -fno-merge-constants 66COMMONCFLAGS += $(call cc-option,$(CC),-nopie,) 67COMMONCFLAGS += $(call cc-option,$(CC),-fno-pie,) 68COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,) 69COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,) 70COMMONCFLAGS += $(call cc-option,$(CC),-fstack-check=no,) 71COMMONCFLAGS += $(call cc-option,$(CC),-Wno-address-of-packed-member,) 72COMMA := , 73 74CFLAGS32FLAT := $(COMMONCFLAGS) -DMODE16=0 -DMODESEGMENT=0 75CFLAGSSEG := $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \ 76 $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \ 77 $(call cc-option,$(CC),-fno-tree-switch-conversion,) 78CFLAGS32SEG := $(CFLAGSSEG) -DMODE16=0 79CFLAGS16 := $(CFLAGSSEG) -DMODE16=1 \ 80 $(call cc-option,$(CC),-m16,-Wa$(COMMA)src/code16gcc.s) \ 81 $(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline) 82 83# Run with "make V=1" to see the actual compile commands 84ifdef V 85Q= 86else 87Q=@ 88MAKEFLAGS += --no-print-directory 89endif 90 91# Default targets 92-include $(KCONFIG_CONFIG) 93 94target-y := 95target-$(CONFIG_QEMU) += $(OUT)bios.bin 96target-$(CONFIG_CSM) += $(OUT)Csm16.bin 97target-$(CONFIG_COREBOOT) += $(OUT)bios.bin.elf 98target-$(CONFIG_BUILD_VGABIOS) += $(OUT)vgabios.bin 99 100all: $(target-y) 101 102# Make definitions 103.PHONY : all clean distclean FORCE 104.DELETE_ON_ERROR: 105 106 107################ Common build rules 108 109# Verify the build environment works. 110TESTGCC:=$(shell OUT="$(OUT)" CC="$(CC)" LD="$(LD)" IASL="$(IASL)" scripts/test-build.sh) 111ifeq "$(TESTGCC)" "-1" 112$(error "Please upgrade the build environment") 113endif 114 115ifeq "$(TESTGCC)" "0" 116# Use -fwhole-program 117CFLAGSWHOLE=-fwhole-program -DWHOLE_PROGRAM 118endif 119 120# Do a whole file compile by textually including all C code. 121define whole-compile 122@echo " Compiling whole program $3" 123$(Q)printf '$(foreach i,$2,#include "$i"\n)' > $3.tmp.c 124$(Q)$(CC) -I. $1 $(CFLAGSWHOLE) -c $3.tmp.c -o $3 125endef 126 127%.strip.o: %.o 128 @echo " Stripping $@" 129 $(Q)$(STRIP) $< -o $@ 130 131$(OUT)%.s: %.c 132 @echo " Compiling to assembler $@" 133 $(Q)$(CC) $(CFLAGS16) -S -c $< -o $@ 134 135$(OUT)%.o: %.c $(OUT)autoconf.h 136 @echo " Compile checking $@" 137 $(Q)$(CC) $(CFLAGS32FLAT) -c $< -o $@ 138 139$(OUT)%.lds: %.lds.S 140 @echo " Precompiling $@" 141 $(Q)$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ $< -o $@ 142 143 144################ Main BIOS build rules 145 146$(OUT)asm-offsets.s: $(OUT)autoconf.h 147 148$(OUT)asm-offsets.h: $(OUT)src/asm-offsets.s 149 @echo " Generating offset file $@" 150 $(Q)./scripts/gen-offsets.sh $< $@ 151 152$(OUT)ccode16.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)src/%.o,$(SRC16)) ; $(call whole-compile, $(CFLAGS16), $(addprefix src/, $(SRC16)),$@) 153 154$(OUT)code32seg.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)src/%.o,$(SRC32SEG)) ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@) 155 156$(OUT)ccode32flat.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)src/%.o,$(SRC32FLAT)) ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@) 157 158$(OUT)romlayout.o: src/romlayout.S $(OUT)autoconf.h $(OUT)asm-offsets.h 159 @echo " Compiling (16bit) $@" 160 $(Q)$(CC) $(CFLAGS16) -c -D__ASSEMBLY__ $< -o $@ 161 162$(OUT)romlayout16.lds: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)ccode16.o $(OUT)romlayout.o src/version.c scripts/layoutrom.py scripts/buildversion.py 163 @echo " Building ld scripts" 164 $(Q)$(PYTHON) ./scripts/buildversion.py -e "$(EXTRAVERSION)" -t "$(CC);$(AS);$(LD);$(OBJCOPY);$(OBJDUMP);$(STRIP)" $(OUT)autoversion.h 165 $(Q)$(CC) $(CFLAGS32FLAT) -c src/version.c -o $(OUT)version.o 166 $(Q)$(LD) $(LD32BIT_FLAG) -r $(OUT)ccode32flat.o $(OUT)version.o -o $(OUT)code32flat.o 167 $(Q)$(LD) $(LD32BIT_FLAG) -r $(OUT)ccode16.o $(OUT)romlayout.o -o $(OUT)code16.o 168 $(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump 169 $(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump 170 $(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump 171 $(Q)$(PYTHON) ./scripts/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)$(KCONFIG_AUTOHEADER) $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds 172 173# These are actually built by scripts/layoutrom.py above, but by pulling them 174# into an extra rule we prevent make -j from spawning layoutrom.py 4 times. 175$(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o $(OUT)code16.o: $(OUT)romlayout16.lds 176 177$(OUT)rom16.o: $(OUT)code16.o $(OUT)romlayout16.lds 178 @echo " Linking $@" 179 $(Q)$(LD) -T $(OUT)romlayout16.lds $< -o $@ 180 181$(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds 182 @echo " Linking $@" 183 $(Q)$(LD) -T $(OUT)romlayout32seg.lds $< -o $@ 184 185$(OUT)rom.o: $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o $(OUT)romlayout32flat.lds 186 @echo " Linking $@" 187 $(Q)$(LD) -N -T $(OUT)romlayout32flat.lds $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o -o $@ 188 189$(OUT)bios.bin.prep: $(OUT)rom.o scripts/checkrom.py 190 @echo " Prepping $@" 191 $(Q)rm -f $(OUT)bios.bin $(OUT)Csm16.bin $(OUT)bios.bin.elf 192 $(Q)$(OBJDUMP) -thr $< > $<.objdump 193 $(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw 194 $(Q)$(PYTHON) ./scripts/checkrom.py $<.objdump $(CONFIG_ROM_SIZE) $(OUT)bios.bin.raw $(OUT)bios.bin.prep 195 196$(OUT)bios.bin: $(OUT)bios.bin.prep 197 @echo " Creating $@" 198 $(Q)cp $< $@ 199 200$(OUT)Csm16.bin: $(OUT)bios.bin.prep 201 @echo " Creating $@" 202 $(Q)cp $< $@ 203 204$(OUT)bios.bin.elf: $(OUT)rom.o $(OUT)bios.bin.prep 205 @echo " Creating $@" 206 $(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf 207 208 209################ VGA build rules 210 211# VGA src files 212SRCVGA=src/output.c src/string.c src/hw/pci.c src/hw/serialio.c \ 213 vgasrc/vgainit.c vgasrc/vgabios.c vgasrc/vgafb.c vgasrc/swcursor.c \ 214 vgasrc/vgafonts.c vgasrc/vbe.c \ 215 vgasrc/stdvga.c vgasrc/stdvgamodes.c vgasrc/stdvgaio.c \ 216 vgasrc/clext.c vgasrc/svgamodes.c vgasrc/atiext.c vgasrc/bochsvga.c vgasrc/geodevga.c \ 217 src/fw/coreboot.c vgasrc/cbvga.c vgasrc/bochsdisplay.c vgasrc/ramfb.c 218 219ifeq "$(CONFIG_VGA_FIXUP_ASM)" "y" 220$(OUT)vgaccode16.raw.s: $(OUT)autoconf.h $(patsubst %.c, $(OUT)%.o,$(SRCVGA)) ; $(call whole-compile, $(filter-out -fomit-frame-pointer,$(CFLAGS16)) -fno-omit-frame-pointer -S -Isrc, $(SRCVGA),$@) 221 222$(OUT)vgaccode16.o: $(OUT)vgaccode16.raw.s scripts/vgafixup.py 223 @echo " Fixup VGA rom assembler" 224 $(Q)$(PYTHON) ./scripts/vgafixup.py $< $(OUT)vgaccode16.s 225 $(Q)$(AS) --32 src/code16gcc.s $(OUT)vgaccode16.s -o $@ 226else 227$(OUT)vgaccode16.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)%.o,$(SRCVGA)) ; $(call whole-compile, $(CFLAGS16) -Isrc, $(SRCVGA),$@) 228endif 229 230$(OUT)vgaentry.o: vgasrc/vgaentry.S $(OUT)autoconf.h $(OUT)asm-offsets.h 231 @echo " Compiling (16bit) $@" 232 $(Q)$(CC) $(CFLAGS16) -c -D__ASSEMBLY__ $< -o $@ 233 234$(OUT)vgarom.o: $(OUT)vgaccode16.o $(OUT)vgaentry.o $(OUT)vgasrc/vgalayout.lds vgasrc/vgaversion.c scripts/buildversion.py 235 @echo " Linking $@" 236 $(Q)$(PYTHON) ./scripts/buildversion.py -e "$(EXTRAVERSION)" -t "$(CC);$(AS);$(LD);$(OBJCOPY);$(OBJDUMP);$(STRIP)" $(OUT)autovgaversion.h 237 $(Q)$(CC) $(CFLAGS16) -c vgasrc/vgaversion.c -o $(OUT)vgaversion.o 238 $(Q)$(LD) --gc-sections -T $(OUT)vgasrc/vgalayout.lds $(OUT)vgaccode16.o $(OUT)vgaentry.o $(OUT)vgaversion.o -o $@ 239 240$(OUT)vgabios.bin.raw: $(OUT)vgarom.o 241 @echo " Extracting binary $@" 242 $(Q)$(OBJCOPY) -O binary $< $@ 243 244$(OUT)vgabios.bin: $(OUT)vgabios.bin.raw scripts/buildrom.py 245 @echo " Finalizing rom $@" 246 $(Q)$(PYTHON) ./scripts/buildrom.py $< $@ 247 248 249################ DSDT build rules 250 251iasl-option=$(shell if test -z "`$(1) $(2) 2>&1 > /dev/null`" \ 252 ; then echo "$(2)"; else echo "$(3)"; fi ;) 253 254%.hex: %.dsl ./scripts/acpi_extract_preprocess.py ./scripts/acpi_extract.py 255 @echo " Compiling IASL $@" 256 $(Q)$(CPP) $(CPPFLAGS) $< -o $(OUT)$*.dsl.i.orig 257 $(Q)$(PYTHON) ./scripts/acpi_extract_preprocess.py $(OUT)$*.dsl.i.orig > $(OUT)$*.dsl.i 258 $(Q)$(IASL) $(call iasl-option,$(IASL),-Pn,) -vs -l -tc -p $(OUT)$* $(OUT)$*.dsl.i 259 $(Q)$(PYTHON) ./scripts/acpi_extract.py $(OUT)$*.lst > $(OUT)$*.off 260 $(Q)cat $(OUT)$*.off > $@ 261 262iasl: src/fw/acpi-dsdt.hex src/fw/ssdt-proc.hex src/fw/ssdt-pcihp.hex src/fw/ssdt-misc.hex 263 264################ Kconfig rules 265 266define do-kconfig 267$(Q)mkdir -p $(OUT)/scripts/kconfig/lxdialog 268$(Q)mkdir -p $(OUT)/include/config 269$(Q)mkdir -p $(addprefix $(OUT), $(DIRS)) 270$(Q)$(MAKE) -C $(OUT) -f $(CURDIR)/scripts/kconfig/Makefile srctree=$(CURDIR) src=scripts/kconfig obj=scripts/kconfig Q=$(Q) Kconfig=$(CURDIR)/src/Kconfig $1 271endef 272 273$(OUT)autoconf.h : $(KCONFIG_CONFIG) ; $(call do-kconfig, silentoldconfig) 274$(KCONFIG_CONFIG): src/Kconfig vgasrc/Kconfig ; $(call do-kconfig, olddefconfig) 275%onfig: ; $(call do-kconfig, $@) 276help: ; $(call do-kconfig, $@) 277 278 279################ Generic rules 280 281clean: 282 $(Q)rm -rf $(OUT) 283 284distclean: clean 285 $(Q)rm -f .config .config.old 286 287-include $(OUT)*.d $(patsubst %,$(OUT)%/*.d,$(DIRS)) 288