## This is Architecture independant part of the makefile

uses HAVE_OPTION_TABLE

makedefine CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E
makedefine LIBGCC_FILE_NAME := $(shell $(CC) -print-libgcc-file-name)
makedefine GCC_INC_DIR := $(shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")

makedefine CPPFLAGS := -I$(TOP)/src/include -I$(TOP)/src/arch/$(ARCH)/include -I$(GCC_INC_DIR) $(CPUFLAGS)
makedefine ROMCCPPFLAGS := -D__ROMCC__=0 -D__ROMCC_MINOR__=64
makedefine CFLAGS := $(CPU_OPT) $(CPPFLAGS) -Os -nostdinc -nostdlib -fno-builtin  -Wall

makedefine HOSTCFLAGS:= -Os -Wall

makerule ldscript.ld   
	depends	"ldoptions $(LDSUBSCRIPTS-1)" 
	action	"echo \"INCLUDE ldoptions\" > $@ ; for file in $(LDSUBSCRIPTS-1) ; do echo \"INCLUDE $$file\" >> $@ ; done"
end

#makerule cpuflags   
#	depends	"Makefile.settings" 
#	action	"perl -e 'print \"CPUFLAGS :=\n\"; foreach $$var (split(\" \", $$ENV{VARIABLES})) { if (exists($$ENV{$$var})) { print \"CPUFLAGS += -D$$var\" . (length($$ENV{$$var})?\"=\x27$$ENV{$$var}\x27\":\"\") .\"\n\"} else { print \"CPUFLAGS += -U$$var\n\"} }' > $@"
#end

#makerule ldoptions   
#	depends	"Makefile.settings" 
#	action	"perl -e 'foreach $$var (split(\" \", $$ENV{VARIABLES})) { if ($$ENV{$$var} =~ m/^(0x[0-9a-fA-F]+|0[0-7]+|[0-9]+)$$/) { print \"$$var = $$ENV{$$var};\n\"; }}' > $@"
#end

makerule linuxbios.strip  
	depends	"linuxbios" 
	action	"$(OBJCOPY) -O binary linuxbios linuxbios.strip"
end

makerule linuxbios_c.o   
	depends	"$(DRIVER) linuxbios.a $(LIBGCC_FILE_NAME)" 
	action	"$(CC) -nostdlib -r -o $@ c_start.o $(DRIVER) linuxbios.a $(LIBGCC_FILE_NAME)"
end

makerule linuxbios_c  
	depends	"linuxbios_c.o $(TOP)/src/config/linuxbios_c.ld ldoptions" 
	action	"$(CC) -nostdlib -nostartfiles -static -o $@ -T $(TOP)/src/config/linuxbios_c.ld linuxbios_c.o"
	action 	"$(CROSS_COMPILE)nm -n linuxbios_c | sort > linuxbios_c.map"
end

##
## By default compress the C part of linuxbios
##
makedefine LINUXBIOS_PAYLOAD-$(CONFIG_COMPRESS):=linuxbios_payload.nrv2b
makedefine LINUXBIOS_PAYLOAD-$(CONFIG_UNCOMPRESSED):=linuxbios_payload.bin

makerule linuxbios_payload.bin 
	depends	"linuxbios_c" 
	action	"$(OBJCOPY) -O binary $< $@"
end

makerule linuxbios_payload.nrv2b 
	depends	"linuxbios_payload.bin nrv2b" 
	action	"./nrv2b e $< $@"
end

makerule linuxbios_payload   
	depends	"$(LINUXBIOS_PAYLOAD-1)" 
	action	"cp $(LINUXBIOS_PAYLOAD-1) linuxbios_payload"
end

makerule linuxbios   
	depends	"crt0.o $(INIT-OBJECTS) linuxbios_payload ldscript.ld" 
	action	"$(CC) -nostdlib -nostartfiles -static -o $@ -T ldscript.ld crt0.o $(INIT-OBJECTS)"
	action	"$(CROSS_COMPILE)nm -n linuxbios | sort > linuxbios.map"
end

makerule linuxbios.a   
	depends	"$(OBJECTS)" 
	action	"rm -f linuxbios.a"
	action	"ar cr linuxbios.a $(OBJECTS)"
end

#makerule crt0.S   
#	depends	"$(CRT0)" 
#	action		"cp $< $@"
#end

# the buildrom tool
makerule buildrom 
	depends	"$(TOP)/util/buildrom/buildrom.c" 
	action	"$(HOSTCC) -o $@ $<"
end

# Force crt0.s (which has build time version code in it to rebuild every time)
makedefine .PHONY : crt0.s
makerule crt0.s   
	depends	"crt0.S $(CRT0_INCLUDES)" 
	action	"@echo \"$(CPP) ... $< > $@ \""
	action	"$(CPP) $(CPPFLAGS) -I. -I$(TOP)/src  $< > $@.new && mv $@.new $@"
end

makerule crt0.o  
	depends	"crt0.s" 
	action	"@echo $(CC) ... -o $@ $<"
	action	"@$(CC) -c $(CPU_OPT) -o $@ $<"
end

makerule etags   
	depends	"$(SOURCES)" 
	action	"etags $(SOURCES)"
end
makerule tags   
	depends	"$(SOURCES)" 
	action	"ctags $(SOURCES)"
end
makerule documentation   
	depends	"$(SOURCES)" 
	action	"doxygen LinuxBIOSDoc.config"
end

makerule ./romcc   
	depends	"$(TOP)/util/romcc/romcc.c" 
	action	"$(HOSTCC) -g $(HOSTCFLAGS) $< -o $@"
end

makerule build_opt_tbl   
	depends	"$(TOP)/util/options/build_opt_tbl.c $(TOP)/src/include/pc80/mc146818rtc.h $(TOP)/src/include/boot/linuxbios_tables.h Makefile.settings Makefile"
	action	"$(HOSTCC) $(HOSTCFLAGS) $(CPUFLAGS) $< -o $@" 
end

#makerule /$(TARGET_DIR)/option_table.c
#	depends	"build_opt_tbl $(MAINBOARD)/cmos.layout" 
#	action	"./build_opt_tbl -b  --config $(MAINBOARD)/cmos.layout"
#end

makerule option_table.c
	depends	"build_opt_tbl $(MAINBOARD)/cmos.layout" 
	action	"./build_opt_tbl -b  --config $(MAINBOARD)/cmos.layout --header option_table.h"
end

makerule option_table.h
	depends	"build_opt_tbl $(MAINBOARD)/cmos.layout" 
	action	"./build_opt_tbl -b  --config $(MAINBOARD)/cmos.layout --header option_table.h"
end

if HAVE_OPTION_TABLE
object ./option_table.o 
#special rule
#makerule option_table.o 
#	depends	"option_table.c" 
#	action	"$(CC) -c $(CFLAGS) -o $@ $<"
#end
# object option_table.o 
end

makerule clean  
	action	"rm -f linuxbios.* *~"
	action	"rm -f linuxbios"
	action	"rm -f ldscript.ld"
	action	"rm -f a.out *.s *.l *.o *.E *.inc"
	action	"rm -f TAGS tags romcc"
	action	"rm -f docipl buildrom chips.c *chip.c linuxbios_c* linuxbios_pay*"
	action	"rm -f build_opt_tbl option_table.c crt0.S"
end

# do standard config files that the user need not specify
# for now, this is just 'lib', but it may be more later. 
dir /lib
dir /console
dir /stream
dir /devices
dir /pc80
dir /boot