[people/ms/u-boot.git] / config.mk

#
# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program 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; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#

#########################################################################

ifneq ($(OBJTREE),$(SRCTREE))
ifeq ($(CURDIR),$(SRCTREE))
dir :=
else
dir := $(subst $(SRCTREE)/,,$(CURDIR))
endif

obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)

$(shell mkdir -p $(obj))
else
obj :=
src :=
endif

# clean the slate ...
PLATFORM_RELFLAGS =
PLATFORM_CPPFLAGS =
PLATFORM_LDFLAGS =

#
# When cross-compiling on NetBSD, we have to define __PPC__ or else we
# will pick up a va_list declaration that is incompatible with the
# actual argument lists emitted by the compiler.
#
# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]

ifeq ($(ARCH),ppc)
ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
PLATFORM_CPPFLAGS+= -D__PPC__
endif
ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
PLATFORM_CPPFLAGS+= -D__PPC__
endif
endif

ifeq ($(ARCH),arm)
ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
PLATFORM_CPPFLAGS+= -D__ARM__
endif
ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
PLATFORM_CPPFLAGS+= -D__ARM__
endif
endif

ifdef	ARCH
sinclude $(TOPDIR)/$(ARCH)_config.mk	# include architecture dependend rules
endif
ifdef	CPU
sinclude $(TOPDIR)/cpu/$(CPU)/config.mk	# include  CPU	specific rules
endif
ifdef	SOC
sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk	# include  SoC	specific rules
endif
ifdef	VENDOR
BOARDDIR = $(VENDOR)/$(BOARD)
else
BOARDDIR = $(BOARD)
endif
ifdef	BOARD
sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk	# include board specific rules
endif

# Load generated board configuration
sinclude $(OBJTREE)/include/autoconf.mk

#########################################################################

CONFIG_SHELL	:= $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
		    else if [ -x /bin/bash ]; then echo /bin/bash; \
		    else echo sh; fi ; fi)

ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
HOSTCC		= cc
else
HOSTCC		= gcc
endif
HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
HOSTSTRIP	= strip

#########################################################################
#
# Option checker (courtesy linux kernel) to ensure
# only supported compiler options are used
#
cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
		> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)

#
# Include the make variables (CC, etc...)
#
AS	= $(CROSS_COMPILE)as
LD	= $(CROSS_COMPILE)ld
CC	= $(CROSS_COMPILE)gcc
CPP	= $(CC) -E
AR	= $(CROSS_COMPILE)ar
NM	= $(CROSS_COMPILE)nm
STRIP	= $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
RANLIB	= $(CROSS_COMPILE)RANLIB

ifneq (,$(findstring s,$(MAKEFLAGS)))
ARFLAGS = cr
else
ARFLAGS = crv
endif
RELFLAGS= $(PLATFORM_RELFLAGS)
DBGFLAGS= -g # -DDEBUG
OPTFLAGS= -Os #-fomit-frame-pointer
ifndef LDSCRIPT
#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
ifeq ($(CONFIG_NAND_U_BOOT),y)
LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
else
LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
endif
endif
OBJCFLAGS += --gap-fill=0xff

gccincdir := $(shell $(CC) -print-file-name=include)

CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS)		\
	-D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE)		\

ifneq ($(OBJTREE),$(SRCTREE))
CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
endif

CPPFLAGS += -I$(TOPDIR)/include
CPPFLAGS += -fno-builtin -ffreestanding -nostdinc 	\
	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)

ifdef BUILD_TAG
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
	-DBUILD_TAG='"$(BUILD_TAG)"'
else
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
endif

# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
# this option have to be placed behind -Wall -- that's why it is here
ifeq ($(ARCH),nios)
ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
endif
endif

# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
# option to the assembler.
AFLAGS_DEBUG :=

# turn jbsr into jsr for m68k
ifeq ($(ARCH),m68k)
ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
AFLAGS_DEBUG := -Wa,-gstabs,-S
endif
endif

AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)

LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)

# Location of a usable BFD library, where we define "usable" as
# "built for ${HOST}, supports ${TARGET}".  Sensible values are
# - When cross-compiling: the root of the cross-environment
# - Linux/ppc (native): /usr
# - NetBSD/ppc (native): you lose ... (must extract these from the
#   binutils build directory, plus the native and U-Boot include
#   files don't like each other)
#
# So far, this is used only by tools/gdb/Makefile.

ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
BFD_ROOT_DIR =		/usr/local/tools
else
ifeq ($(HOSTARCH),$(ARCH))
# native
BFD_ROOT_DIR =		/usr
else
#BFD_ROOT_DIR =		/LinuxPPC/CDK		# Linux/i386
#BFD_ROOT_DIR =		/usr/pkg/cross		# NetBSD/i386
BFD_ROOT_DIR =		/opt/powerpc
endif
endif

ifeq ($(PCI_CLOCK),PCI_66M)
CFLAGS := $(CFLAGS) -DPCI_66M
endif

#########################################################################

export	CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
	MAKE
export	TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS

#########################################################################

ifndef REMOTE_BUILD

%.s:	%.S
	$(CPP) $(AFLAGS) -o $@ $<
%.o:	%.S
	$(CC) $(AFLAGS) -c -o $@ $<
%.o:	%.c
	$(CC) $(CFLAGS) -c -o $@ $<

else

$(obj)%.s:	%.S
	$(CPP) $(AFLAGS) -o $@ $<
$(obj)%.o:	%.S
	$(CC) $(AFLAGS) -c -o $@ $<
$(obj)%.o:	%.c
	$(CC) $(CFLAGS) -c -o $@ $<
endif

#########################################################################
Commit	Line	Data
	1	#
	2	# (C) Copyright 2000-2006
	3	# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	#
	5	# See file CREDITS for list of people who contributed to this
	6	# project.
	7	#
	8	# This program is free software; you can redistribute it and/or
	9	# modify it under the terms of the GNU General Public License as
	10	# published by the Free Software Foundation; either version 2 of
	11	# the License, or (at your option) any later version.
	12	#
	13	# This program is distributed in the hope that it will be useful,
	14	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	# GNU General Public License for more details.
	17	#
	18	# You should have received a copy of the GNU General Public License
	19	# along with this program; if not, write to the Free Software
	20	# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	# MA 02111-1307 USA
	22	#
	23
	24	#########################################################################
	25
	26	ifneq ($(OBJTREE),$(SRCTREE))
	27	ifeq ($(CURDIR),$(SRCTREE))
	28	dir :=
	29	else
	30	dir := $(subst $(SRCTREE)/,,$(CURDIR))
	31	endif
	32
	33	obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
	34	src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
	35
	36	$(shell mkdir -p $(obj))
	37	else
	38	obj :=
	39	src :=
	40	endif
	41
	42	# clean the slate ...
	43	PLATFORM_RELFLAGS =
	44	PLATFORM_CPPFLAGS =
	45	PLATFORM_LDFLAGS =
	46
	47	#
	48	# When cross-compiling on NetBSD, we have to define __PPC__ or else we
	49	# will pick up a va_list declaration that is incompatible with the
	50	# actual argument lists emitted by the compiler.
	51	#
	52	# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
	53
	54	ifeq ($(ARCH),ppc)
	55	ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
	56	PLATFORM_CPPFLAGS+= -D__PPC__
	57	endif
	58	ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
	59	PLATFORM_CPPFLAGS+= -D__PPC__
	60	endif
	61	endif
	62
	63	ifeq ($(ARCH),arm)
	64	ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
	65	PLATFORM_CPPFLAGS+= -D__ARM__
	66	endif
	67	ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
	68	PLATFORM_CPPFLAGS+= -D__ARM__
	69	endif
	70	endif
	71
	72	ifdef ARCH
	73	sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
	74	endif
	75	ifdef CPU
	76	sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
	77	endif
	78	ifdef SOC
	79	sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
	80	endif
	81	ifdef VENDOR
	82	BOARDDIR = $(VENDOR)/$(BOARD)
	83	else
	84	BOARDDIR = $(BOARD)
	85	endif
	86	ifdef BOARD
	87	sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
	88	endif
	89
	90	# Load generated board configuration
	91	sinclude $(OBJTREE)/include/autoconf.mk
	92
	93	#########################################################################
	94
	95	CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
	96	else if [ -x /bin/bash ]; then echo /bin/bash; \
	97	else echo sh; fi ; fi)
	98
	99	ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
	100	HOSTCC = cc
	101	else
	102	HOSTCC = gcc
	103	endif
	104	HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
	105	HOSTSTRIP = strip
	106
	107	#########################################################################
	108	#
	109	# Option checker (courtesy linux kernel) to ensure
	110	# only supported compiler options are used
	111	#
	112	cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
	113	> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
	114
	115	#
	116	# Include the make variables (CC, etc...)
	117	#
	118	AS = $(CROSS_COMPILE)as
	119	LD = $(CROSS_COMPILE)ld
	120	CC = $(CROSS_COMPILE)gcc
	121	CPP = $(CC) -E
	122	AR = $(CROSS_COMPILE)ar
	123	NM = $(CROSS_COMPILE)nm
	124	STRIP = $(CROSS_COMPILE)strip
	125	OBJCOPY = $(CROSS_COMPILE)objcopy
	126	OBJDUMP = $(CROSS_COMPILE)objdump
	127	RANLIB = $(CROSS_COMPILE)RANLIB
	128
	129	ifneq (,$(findstring s,$(MAKEFLAGS)))
	130	ARFLAGS = cr
	131	else
	132	ARFLAGS = crv
	133	endif
	134	RELFLAGS= $(PLATFORM_RELFLAGS)
	135	DBGFLAGS= -g # -DDEBUG
	136	OPTFLAGS= -Os #-fomit-frame-pointer
	137	ifndef LDSCRIPT
	138	#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
	139	ifeq ($(CONFIG_NAND_U_BOOT),y)
	140	LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
	141	else
	142	LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
	143	endif
	144	endif
	145	OBJCFLAGS += --gap-fill=0xff
	146
	147	gccincdir := $(shell $(CC) -print-file-name=include)
	148
	149	CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
	150	-D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
	151
	152	ifneq ($(OBJTREE),$(SRCTREE))
	153	CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
	154	endif
	155
	156	CPPFLAGS += -I$(TOPDIR)/include
	157	CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
	158	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
	159
	160	ifdef BUILD_TAG
	161	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
	162	-DBUILD_TAG='"$(BUILD_TAG)"'
	163	else
	164	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
	165	endif
	166
	167	# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
	168	# this option have to be placed behind -Wall -- that's why it is here
	169	ifeq ($(ARCH),nios)
	170	ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
	171	CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
	172	endif
	173	endif
	174
	175	# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
	176	# option to the assembler.
	177	AFLAGS_DEBUG :=
	178
	179	# turn jbsr into jsr for m68k
	180	ifeq ($(ARCH),m68k)
	181	ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
	182	AFLAGS_DEBUG := -Wa,-gstabs,-S
	183	endif
	184	endif
	185
	186	AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
	187
	188	LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
	189
	190	# Location of a usable BFD library, where we define "usable" as
	191	# "built for ${HOST}, supports ${TARGET}". Sensible values are
	192	# - When cross-compiling: the root of the cross-environment
	193	# - Linux/ppc (native): /usr
	194	# - NetBSD/ppc (native): you lose ... (must extract these from the
	195	# binutils build directory, plus the native and U-Boot include
	196	# files don't like each other)
	197	#
	198	# So far, this is used only by tools/gdb/Makefile.
	199
	200	ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
	201	BFD_ROOT_DIR = /usr/local/tools
	202	else
	203	ifeq ($(HOSTARCH),$(ARCH))
	204	# native
	205	BFD_ROOT_DIR = /usr
	206	else
	207	#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
	208	#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
	209	BFD_ROOT_DIR = /opt/powerpc
	210	endif
	211	endif
	212
	213	ifeq ($(PCI_CLOCK),PCI_66M)
	214	CFLAGS := $(CFLAGS) -DPCI_66M
	215	endif
	216
	217	#########################################################################
	218
	219	export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
	220	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
	221	MAKE
	222	export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
	223
	224	#########################################################################
	225
	226	ifndef REMOTE_BUILD
	227
	228	%.s: %.S
	229	$(CPP) $(AFLAGS) -o $@ $<
	230	%.o: %.S
	231	$(CC) $(AFLAGS) -c -o $@ $<
	232	%.o: %.c
	233	$(CC) $(CFLAGS) -c -o $@ $<
	234
	235	else
	236
	237	$(obj)%.s: %.S
	238	$(CPP) $(AFLAGS) -o $@ $<
	239	$(obj)%.o: %.S
	240	$(CC) $(AFLAGS) -c -o $@ $<
	241	$(obj)%.o: %.c
	242	$(CC) $(CFLAGS) -c -o $@ $<
	243	endif
	244
	245	#########################################################################