# $Id: Makefile.kmk 4071 2007-08-07 17:07:59Z vboxsync $
## @file
# PC BIOS Sub-Makefile.
#

#
#  Copyright (C) 2006-2007 innotek GmbH
# 
#  This file is part of VirtualBox Open Source Edition (OSE), as
#  available from http://www.virtualbox.org. This file is free software;
#  you can redistribute it and/or modify it under the terms of the GNU
#  General Public License as published by the Free Software Foundation,
#  in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
#  distribution. VirtualBox OSE is distributed in the hope that it will
#  be useful, but WITHOUT ANY WARRANTY of any kind.

DEPTH ?= ../../../../../
SUB_DEPTH = ../..
include	$(PATH_KBUILD)/subheader.kmk

VBOX_PATH_DEVICES_SRC = $(PATH_SUB_ROOT)

#
# Build program for calculating the PC BIOS checksums.
#
BLDPROGS += pcbiossums
pcbiossums_TEMPLATE = VBOXBLDPROG
pcbiossums_SOURCES  = biossums.c


#
# The library containing the PC BIOS image.
#
LIBRARIES += PcBiosBin
PcBiosBin_TEMPLATE  = VBOXR3
PcBiosBin_DEFS      = IN_VBOXDD2
PcBiosBin_INCS      = $(VBOX_PATH_DEVICES_SRC)
PcBiosBin_SOURCES   = $(PATH_TARGET)/PcBiosBin.c
$(PATH_TARGET)/PcBiosBin.c_DEPS = $(PATH_TARGET)/pcbios-syms.h
PcBiosBin_CLEAN     = \
	$(PATH_TARGET)/_rombios_.c \
	$(PATH_TARGET)/rombios0.s \
	$(PATH_TARGET)/rombios1.s \
	$(PATH_TARGET)/pcbios.lst \
	$(PATH_TARGET)/pcbios.tmp \
	$(PATH_TARGET)/pcbios.bin \
	$(PATH_TARGET)/PcBiosBin.c \
	$(PATH_TARGET)/PcDefBiosLogo.c \
	$(PATH_TARGET)/pcbios-syms.h

#
# Rule for making the bios.
#
$(PATH_TARGET)/PcBiosBin.c: $(PATH_TARGET)/pcbios.bin $(VBOX_BIN2C)
	$(call MSG_TOOL,bin2c,PcBiosBin,$<,$@)
	$(QUIET)$(VBOX_BIN2C) -min 64 -max 256 -mask 0xffff -ascii -export PcBiosBinary $< $@

#
# Six steps to pcbios.bin and pcbios-syms.h
#

# 1. precompile rombios.c
$(PATH_TARGET)/_rombios_.c: $(PATH_SUB_CURRENT)/rombios.c $(PATH_SUB_CURRENT)/logo.c $(PATH_SUB_CURRENT)/apmbios.S | $(call DIRDEP,$(TARGET_PATH))
	$(call MSG_TOOL,cpp,PcBiosBin,$<,$@)
	$(QUIET)$(TOOL_$(VBOX_GCC_TOOL)_CC) -E -I$(PATH_TARGET) -I$(VBOX_PATH_DEVICES_SRC)/PC -I$(PATH_ROOT)/include -I$(PATH_OUT) -DBX_SMP_PROCESSORS=1 -DVBOX $(addprefix -D,$(DEFS) $(DEFS.$(BUILD_TYPE))) -P $< > $@

# 2. compile to intermediate asm file - tempfile clashes, make sure it's built alone.
.NOTPARALLEL: $(PATH_TARGET)/rombios0.s
$(PATH_TARGET)/rombios0.s: $(PATH_TARGET)/_rombios_.c
	$(call MSG_COMPILE,PcBiosBin,$<,$@,C)
	$(QUIET)$(VBOX_BCC) -o $@ -C-c -D__i86__ -0 -S $^

# 3. post process intermediate asm file.
$(PATH_TARGET)/rombios1.s: $(PATH_TARGET)/rombios0.s
	$(call MSG_TOOL,Adjusting BCC Assembly,PcBiosBin,$<,$@)
	$(QUIET)$(SED) -e 's/^\.text//' -e 's/^\.data//' $^ > $@

# 4. assemble the intermediate asm file. (also creates a listing rombios.lst)
$(PATH_TARGET)/pcbios.tmp $(PATH_TARGET)/pcbios.lst: $(PATH_TARGET)/rombios1.s
	$(call MSG_COMPILE,PcBiosBin,$<,$@,AS)
	$(QUIET)$(VBOX_AS86) -b $(PATH_TARGET)/pcbios.tmp -u- -w- -g -0 -j -O -l $(PATH_TARGET)/pcbios.lst - < $^

# 5. calculate checksums for the final BIOS image.
$(PATH_TARGET)/pcbios.bin: $(PATH_TARGET)/pcbios.tmp $$(TARGET_pcbiossums)
	$(call MSG_TOOL,pcbiossums,PcBiosBin,$<,$@)
	$(QUIET)$(CP) -f $(PATH_TARGET)/pcbios.tmp $(PATH_TARGET)/pcbios.bin
	$(QUIET)$(TARGET_pcbiossums) $(PATH_TARGET)/pcbios.bin

# 6. create the symbol table.
$(PATH_TARGET)/pcbios-syms.h: $(PATH_TARGET)/pcbios.lst $(MAKEFILE_CURRENT)
	$(call MSG_GENERATE,PcBiosBin,$<,$@)
	$(QUIET)$(SED) \
		-e  '/^[0-9][0-9][0-9][0-9][0-9]                       000[0-9A-F]*            [[:space:]]*[a-zA-Z0-9_]*:/!d' \
		-e 's/^[0-9][0-9][0-9][0-9][0-9]                       \(000[0-9A-F]*\)            [[:space:]]*\([a-zA-Z0-9_]*\):.*$$/    DEFSYM(0x\1, "\2"),/' \
		$(PATH_TARGET)/pcbios.lst > $@


#
# The PC BIOS Logo.
#
LIBRARIES += PcDefBiosLogo
PcDefBiosLogo_TEMPLATE  = VBOXR3
PcDefBiosLogo_INCS      = $(VBOX_PATH_DEVICES_SRC)
PcDefBiosLogo_SOURCES   = $(PATH_TARGET)/PcDefBiosLogo.c

#
# Rule for making the bios logo.
#
$(PATH_TARGET)/PcDefBiosLogo.c: $(PATH_SUB_CURRENT)/innotek_logo.bmp $(VBOX_BIN2C)
	$(call MSG_TOOL,bin2c,PcBiosBin,$<,$@)
	$(QUIET)$(VBOX_BIN2C) -max 64 PcDefBiosLogo $< $@


include	$(PATH_KBUILD)/subfooter.kmk