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# SeaBIOS build system
#
# Copyright (C) 2008-2012 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU LGPLv3 license.
# Output directory
OUT=out/
# Source files
SRCBOTH=misc.c stacks.c pmm.c output.c util.c block.c floppy.c ata.c mouse.c \
kbd.c pci.c serial.c clock.c pic.c cdrom.c ps2port.c smp.c resume.c \
pnpbios.c pirtable.c vgahooks.c ramdisk.c pcibios.c blockcmd.c \
usb.c usb-uhci.c usb-ohci.c usb-ehci.c usb-hid.c usb-msc.c \
virtio-ring.c virtio-pci.c virtio-blk.c virtio-scsi.c apm.c ahci.c \
usb-uas.c lsi-scsi.c esp-scsi.c megasas.c
SRC16=$(SRCBOTH) system.c disk.c font.c
SRC32FLAT=$(SRCBOTH) post.c shadow.c memmap.c coreboot.c boot.c \
acpi.c smm.c mptable.c smbios.c pciinit.c optionroms.c mtrr.c \
lzmadecode.c bootsplash.c jpeg.c usb-hub.c paravirt.c \
biostables.c xen.c bmp.c romfile.c
SRC32SEG=util.c output.c pci.c pcibios.c apm.c stacks.c
# Default compiler flags
cc-option=$(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`" \
; then echo "$(2)"; else echo "$(3)"; fi ;)
COMMONCFLAGS := -I$(OUT) -Os -MD -g \
-Wall -Wno-strict-aliasing -Wold-style-definition \
$(call cc-option,$(CC),-Wtype-limits,) \
-m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \
-minline-all-stringops \
-freg-struct-return -ffreestanding -fno-delete-null-pointer-checks \
-ffunction-sections -fdata-sections -fno-common
COMMONCFLAGS += $(call cc-option,$(CC),-nopie,)
COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
CFLAGS32FLAT := $(COMMONCFLAGS) -DMODE16=0 -DMODESEGMENT=0 -fomit-frame-pointer
CFLAGSSEG := $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \
$(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \
$(call cc-option,$(CC),-fno-tree-switch-conversion,)
CFLAGS32SEG := $(CFLAGSSEG) -DMODE16=0 -fomit-frame-pointer
CFLAGS16INC := $(CFLAGSSEG) -DMODE16=1 -Wa,src/code16gcc.s \
$(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline)
CFLAGS16 := $(CFLAGS16INC) -fomit-frame-pointer
# Run with "make V=1" to see the actual compile commands
ifdef V
Q=
else
Q=@
MAKEFLAGS += --no-print-directory
endif
# Common command definitions
export HOSTCC := $(CC)
export CONFIG_SHELL := sh
export KCONFIG_AUTOHEADER := autoconf.h
export KCONFIG_CONFIG := $(CURDIR)/.config
AS=as
OBJCOPY=objcopy
OBJDUMP=objdump
STRIP=strip
PYTHON=python
IASL:=iasl
# Default targets
-include $(KCONFIG_CONFIG)
target-y = $(OUT) $(OUT)bios.bin
target-$(CONFIG_BUILD_VGABIOS) += $(OUT)vgabios.bin
all: $(target-y)
# Make definitions
.PHONY : all clean distclean FORCE
.DELETE_ON_ERROR:
vpath %.c src vgasrc
vpath %.S src vgasrc
################ Common build rules
# Verify the build environment works.
TESTGCC:=$(shell CC="$(CC)" LD="$(LD)" IASL="$(IASL)" tools/test-build.sh)
ifeq "$(TESTGCC)" "-1"
$(error "Please upgrade the build environment")
endif
ifeq "$(TESTGCC)" "0"
# Use -fwhole-program
CFLAGSWHOLE=-fwhole-program -DWHOLE_PROGRAM
endif
# Do a whole file compile by textually including all C code.
define whole-compile
@echo " Compiling whole program $3"
$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
$(Q)$(CC) $1 $(CFLAGSWHOLE) -c $3.tmp.c -o $3
endef
%.strip.o: %.o
@echo " Stripping $@"
$(Q)$(STRIP) $< -o $@
$(OUT)%.s: %.c
@echo " Compiling to assembler $@"
$(Q)$(CC) $(CFLAGS16) -S -c $< -o $@
$(OUT)%.o: %.c $(OUT)autoconf.h
@echo " Compile checking $@"
$(Q)$(CC) $(CFLAGS32FLAT) -c $< -o $@
$(OUT)%.lds: %.lds.S
@echo " Precompiling $@"
$(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
################ Main BIOS build rules
$(OUT)asm-offsets.s: $(OUT)autoconf.h
$(OUT)asm-offsets.h: $(OUT)asm-offsets.s
@echo " Generating offset file $@"
$(Q)./tools/gen-offsets.sh $< $@
$(OUT)ccode16.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)%.o,$(SRC16)) ; $(call whole-compile, $(CFLAGS16), $(addprefix src/, $(SRC16)),$@)
$(OUT)code32seg.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)%.o,$(SRC32SEG)) ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
$(OUT)ccode32flat.o: $(OUT)autoconf.h $(patsubst %.c, $(OUT)%.o,$(SRC32FLAT)) ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
$(OUT)romlayout.o: romlayout.S $(OUT)asm-offsets.h
@echo " Compiling (16bit) $@"
$(Q)$(CC) $(CFLAGS16) -c -D__ASSEMBLY__ $< -o $@
$(OUT)romlayout16.lds: $(OUT)ccode32flat.o $(OUT)code32seg.o $(OUT)ccode16.o $(OUT)romlayout.o tools/layoutrom.py
@echo " Building ld scripts"
$(Q)./tools/buildversion.sh $(OUT)version.c
$(Q)$(CC) $(CFLAGS32FLAT) -c $(OUT)version.c -o $(OUT)version.o
$(Q)$(LD) -melf_i386 -r $(OUT)ccode32flat.o $(OUT)version.o -o $(OUT)code32flat.o
$(Q)$(LD) -melf_i386 -r $(OUT)ccode16.o $(OUT)romlayout.o -o $(OUT)code16.o
$(Q)$(OBJDUMP) -thr $(OUT)code32flat.o > $(OUT)code32flat.o.objdump
$(Q)$(OBJDUMP) -thr $(OUT)code32seg.o > $(OUT)code32seg.o.objdump
$(Q)$(OBJDUMP) -thr $(OUT)code16.o > $(OUT)code16.o.objdump
$(Q)$(PYTHON) ./tools/layoutrom.py $(OUT)code16.o.objdump $(OUT)code32seg.o.objdump $(OUT)code32flat.o.objdump $(OUT)romlayout16.lds $(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds
# These are actually built by tools/layoutrom.py above, but by pulling them
# into an extra rule we prevent make -j from spawning layoutrom.py 4 times.
$(OUT)romlayout32seg.lds $(OUT)romlayout32flat.lds $(OUT)code32flat.o $(OUT)code16.o: $(OUT)romlayout16.lds
$(OUT)rom16.o: $(OUT)code16.o $(OUT)romlayout16.lds
@echo " Linking $@"
$(Q)$(LD) -T $(OUT)romlayout16.lds $< -o $@
$(OUT)rom32seg.o: $(OUT)code32seg.o $(OUT)romlayout32seg.lds
@echo " Linking $@"
$(Q)$(LD) -T $(OUT)romlayout32seg.lds $< -o $@
$(OUT)rom.o: $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o $(OUT)romlayout32flat.lds
@echo " Linking $@"
$(Q)$(LD) -T $(OUT)romlayout32flat.lds $(OUT)rom16.strip.o $(OUT)rom32seg.strip.o $(OUT)code32flat.o -o $@
$(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py
@echo " Prepping $@"
$(Q)$(OBJDUMP) -thr $< > $<.objdump
$(Q)$(OBJCOPY) -O binary $< $(OUT)bios.bin.raw
$(Q)$(PYTHON) ./tools/checkrom.py $<.objdump $(OUT)bios.bin.raw $(OUT)bios.bin
$(Q)$(STRIP) -R .comment $< -o $(OUT)bios.bin.elf
################ VGA build rules
# VGA src files
SRCVGA=src/output.c src/util.c src/pci.c \
vgasrc/vgabios.c vgasrc/vgafb.c vgasrc/vgafonts.c vgasrc/vbe.c \
vgasrc/stdvga.c vgasrc/stdvgamodes.c vgasrc/stdvgaio.c \
vgasrc/clext.c vgasrc/bochsvga.c vgasrc/geodevga.c
CFLAGS16VGA = $(CFLAGS16INC) -Isrc
$(OUT)vgaccode16.raw.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16VGA) -S, $(SRCVGA),$@)
$(OUT)vgaccode16.o: $(OUT)vgaccode16.raw.s
@echo " Fixup VGA rom assembler"
$(Q)$(PYTHON) ./tools/vgafixup.py $< $(OUT)vgaccode16.s
$(Q)$(AS) --32 src/code16gcc.s $(OUT)vgaccode16.s -o $@
$(OUT)vgaentry.o: vgaentry.S $(OUT)autoconf.h
@echo " Compiling (16bit) $@"
$(Q)$(CC) $(CFLAGS16VGA) -c -D__ASSEMBLY__ $< -o $@
$(OUT)vgarom.o: $(OUT)vgaccode16.o $(OUT)vgaentry.o $(OUT)vgalayout.lds
@echo " Linking $@"
$(Q)./tools/buildversion.sh $(OUT)vgaversion.c VAR16
$(Q)$(CC) $(CFLAGS16VGA) -c $(OUT)vgaversion.c -o $(OUT)vgaversion.o
$(Q)$(LD) --gc-sections -T $(OUT)vgalayout.lds $(OUT)vgaccode16.o $(OUT)vgaentry.o $(OUT)vgaversion.o -o $@
$(OUT)vgabios.bin.raw: $(OUT)vgarom.o
@echo " Extracting binary $@"
$(Q)$(OBJCOPY) -O binary $< $@
$(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
@echo " Finalizing rom $@"
$(Q)$(PYTHON) ./tools/buildrom.py $< $@
################ DSDT build rules
iasl-option=$(shell if test -z "`$(1) $(2) 2>&1 > /dev/null`" \
; then echo "$(2)"; else echo "$(3)"; fi ;)
$(OUT)%.hex: src/%.dsl ./tools/acpi_extract_preprocess.py ./tools/acpi_extract.py
@echo " Compiling IASL $@"
$(Q)cpp -P $< > $(OUT)$*.dsl.i.orig
$(Q)$(PYTHON) ./tools/acpi_extract_preprocess.py $(OUT)$*.dsl.i.orig > $(OUT)$*.dsl.i
$(Q)$(IASL) $(call iasl-option,$(IASL),-Pn,) -vs -l -tc -p $(OUT)$* $(OUT)$*.dsl.i
$(Q)$(PYTHON) ./tools/acpi_extract.py $(OUT)$*.lst > $(OUT)$*.off
$(Q)cat $(OUT)$*.off > $@
$(OUT)acpi.o: $(OUT)acpi-dsdt.hex $(OUT)ssdt-proc.hex $(OUT)ssdt-pcihp.hex $(OUT)ssdt-susp.hex $(OUT)q35-acpi-dsdt.hex
################ Kconfig rules
define do-kconfig
$(Q)mkdir -p $(OUT)/tools/kconfig/lxdialog
$(Q)mkdir -p $(OUT)/include/config
$(Q)$(MAKE) -C $(OUT) -f $(CURDIR)/tools/kconfig/Makefile srctree=$(CURDIR) src=tools/kconfig obj=tools/kconfig Q=$(Q) Kconfig=$(CURDIR)/src/Kconfig $1
endef
$(OUT)autoconf.h : $(KCONFIG_CONFIG) ; $(call do-kconfig, silentoldconfig)
$(KCONFIG_CONFIG): ; $(call do-kconfig, defconfig)
%onfig: ; $(call do-kconfig, $@)
help: ; $(call do-kconfig, $@)
################ Generic rules
clean:
$(Q)rm -rf $(OUT)
distclean: clean
$(Q)rm -f .config .config.old
$(OUT):
$(Q)mkdir $@
-include $(OUT)*.d