# $Id: Makefile.kmk 12589 2008-09-19 06:59:57Z vboxsync $
## @file
# PC BIOS Sub-Makefile.
#

#
# Copyright (C) 2006-2007 Sun Microsystems, Inc.
#
# 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 (GPL) 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.
#
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
# Clara, CA 95054 USA or visit http://www.sun.com if you need
# additional information or have any questions.
#

SUB_DEPTH = ../../../../..
include	$(KBUILD_PATH)/subheader.kmk

#
# Globals
#
VBOX_PATH_DEVICES_SRC ?= $(PATH_ROOT)/src/VBox/Devices

#
# 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_PcBiosBin)/PcBiosBin.c
PcBiosBin_DEPS      = $(PATH_PcBiosBin)/pcbios-syms.h
PcBiosBin_CLEAN     = \
	$(PATH_PcBiosBin)/_rombios_.c \
	$(PATH_PcBiosBin)/rombios0.s \
	$(PATH_PcBiosBin)/rombios1.s \
	$(PATH_PcBiosBin)/pcbios.lst \
	$(PATH_PcBiosBin)/pcbios.tmp \
	$(PATH_PcBiosBin)/pcbios.bin \
	$(PATH_PcBiosBin)/PcBiosBin.c \
	$(PATH_PcBiosBin)/pcbios-syms.h

#
# Rule for making the bios.
#
$$(PATH_PcBiosBin)/PcBiosBin.c: $$(PATH_PcBiosBin)/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
$$(PATH_PcBiosBin)/_rombios_.c: $(PATH_SUB_CURRENT)/rombios.c $(PATH_SUB_CURRENT)/logo.c $(PATH_SUB_CURRENT)/apmbios.S $(if $(VBOX_WITH_SCSI),$(PATH_SUB_CURRENT)/scsi.c) \
		$(PATH_SUB_CURRENT)/../DevPcBios.h $(PATH_ROOT)/include/VBox/bioslogo.h | $$(dir $$@)
	$(call MSG_TOOL,cpp,PcBiosBin,$<,$@)
	$(QUIET)$(TOOL_$(VBOX_GCC_TOOL)_CC) -E \
		-I$(PATH_PcBiosBin) -I$(VBOX_PATH_DEVICES_SRC)/PC -I$(PATH_ROOT)/include -I$(PATH_OUT) \
		-DBX_SMP_PROCESSORS=1 -DVBOX -DVBOX_PC_BIOS $(addprefix -D,$(DEFS) $(DEFS.$(KBUILD_TYPE))) \
		$(if $(VBOX_WITH_SCSI),-DVBOX_WITH_SCSI) \
		-P -o $@ $<

# 2. compile to intermediate asm file.
# BCC tempfile clashes, order the BCC jobs to make sure they don't interfere with one another.
$$(PATH_PcBiosBin)/rombios0.s: $$(PATH_PcBiosBin)/_rombios_.c $(VBOX_VERSION_STAMP) | $(VBOX_BCC_JOBS)
	$(call MSG_COMPILE,PcBiosBin,$<,$@,C)
	$(QUIET)$(VBOX_BCC) -o $@ -C-c -D__i86__ -0 -S $<
VBOX_BCC_JOBS += $(PATH_PcBiosBin)/rombios0.s

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

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

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

# 6. create the symbol table.
$$(PATH_PcBiosBin)/pcbios-syms.h: $$(PATH_PcBiosBin)/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"),/' \
		--output $@ \
		$(PATH_PcBiosBin)/pcbios.lst


include	$(KBUILD_PATH)/subfooter.kmk