[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 =

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

ifeq ($(HOSTOS),darwin)
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
LDR	= $(CROSS_COMPILE)ldr
STRIP	= $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
RANLIB	= $(CROSS_COMPILE)RANLIB

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

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

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

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

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) $(RELFLAGS)		\
	-D__KERNEL__
ifneq ($(TEXT_BASE),)
CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
endif

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

CFLAGS += $(call cc-option,-fno-stack-protector)

# 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) $(PLATFORM_LDFLAGS)
ifneq ($(TEXT_BASE),)
LDFLAGS += -Ttext $(TEXT_BASE)
endif

# 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 ($(HOSTOS),darwin)
BFD_ROOT_DIR =		/usr/local/tools
else
ifeq ($(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	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

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

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

#########################################################################
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 $(obj))
	37	else
	38	obj :=
	39	src :=
	40	endif
	41
	42	# clean the slate ...
	43	PLATFORM_RELFLAGS =
	44	PLATFORM_CPPFLAGS =
	45	PLATFORM_LDFLAGS =
	46
	47	#########################################################################
	48
	49	ifeq ($(HOSTOS),darwin)
	50	HOSTCC = cc
	51	else
	52	HOSTCC = gcc
	53	endif
	54	HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
	55	HOSTSTRIP = strip
	56
	57	#########################################################################
	58	#
	59	# Option checker (courtesy linux kernel) to ensure
	60	# only supported compiler options are used
	61	#
	62	cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
	63	> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
	64
	65	#
	66	# Include the make variables (CC, etc...)
	67	#
	68	AS = $(CROSS_COMPILE)as
	69	LD = $(CROSS_COMPILE)ld
	70	CC = $(CROSS_COMPILE)gcc
	71	CPP = $(CC) -E
	72	AR = $(CROSS_COMPILE)ar
	73	NM = $(CROSS_COMPILE)nm
	74	LDR = $(CROSS_COMPILE)ldr
	75	STRIP = $(CROSS_COMPILE)strip
	76	OBJCOPY = $(CROSS_COMPILE)objcopy
	77	OBJDUMP = $(CROSS_COMPILE)objdump
	78	RANLIB = $(CROSS_COMPILE)RANLIB
	79
	80	#########################################################################
	81
	82	# Load generated board configuration
	83	sinclude $(OBJTREE)/include/autoconf.mk
	84
	85	ifdef ARCH
	86	sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
	87	endif
	88	ifdef CPU
	89	sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
	90	endif
	91	ifdef SOC
	92	sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
	93	endif
	94	ifdef VENDOR
	95	BOARDDIR = $(VENDOR)/$(BOARD)
	96	else
	97	BOARDDIR = $(BOARD)
	98	endif
	99	ifdef BOARD
	100	sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
	101	endif
	102
	103	#########################################################################
	104
	105	ifneq (,$(findstring s,$(MAKEFLAGS)))
	106	ARFLAGS = cr
	107	else
	108	ARFLAGS = crv
	109	endif
	110	RELFLAGS= $(PLATFORM_RELFLAGS)
	111	DBGFLAGS= -g # -DDEBUG
	112	OPTFLAGS= -Os #-fomit-frame-pointer
	113	ifndef LDSCRIPT
	114	#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
	115	ifeq ($(CONFIG_NAND_U_BOOT),y)
	116	LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
	117	else
	118	LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
	119	endif
	120	endif
	121	OBJCFLAGS += --gap-fill=0xff
	122
	123	gccincdir := $(shell $(CC) -print-file-name=include)
	124
	125	CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
	126	-D__KERNEL__
	127	ifneq ($(TEXT_BASE),)
	128	CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
	129	endif
	130
	131	ifneq ($(OBJTREE),$(SRCTREE))
	132	CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
	133	endif
	134
	135	CPPFLAGS += -I$(TOPDIR)/include
	136	CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
	137	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
	138
	139	ifdef BUILD_TAG
	140	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
	141	-DBUILD_TAG='"$(BUILD_TAG)"'
	142	else
	143	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
	144	endif
	145
	146	CFLAGS += $(call cc-option,-fno-stack-protector)
	147
	148	# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
	149	# this option have to be placed behind -Wall -- that's why it is here
	150	ifeq ($(ARCH),nios)
	151	ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
	152	CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
	153	endif
	154	endif
	155
	156	# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
	157	# option to the assembler.
	158	AFLAGS_DEBUG :=
	159
	160	# turn jbsr into jsr for m68k
	161	ifeq ($(ARCH),m68k)
	162	ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
	163	AFLAGS_DEBUG := -Wa,-gstabs,-S
	164	endif
	165	endif
	166
	167	AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
	168
	169	LDFLAGS += -Bstatic -T $(LDSCRIPT) $(PLATFORM_LDFLAGS)
	170	ifneq ($(TEXT_BASE),)
	171	LDFLAGS += -Ttext $(TEXT_BASE)
	172	endif
	173
	174	# Location of a usable BFD library, where we define "usable" as
	175	# "built for ${HOST}, supports ${TARGET}". Sensible values are
	176	# - When cross-compiling: the root of the cross-environment
	177	# - Linux/ppc (native): /usr
	178	# - NetBSD/ppc (native): you lose ... (must extract these from the
	179	# binutils build directory, plus the native and U-Boot include
	180	# files don't like each other)
	181	#
	182	# So far, this is used only by tools/gdb/Makefile.
	183
	184	ifeq ($(HOSTOS),darwin)
	185	BFD_ROOT_DIR = /usr/local/tools
	186	else
	187	ifeq ($(HOSTARCH),$(ARCH))
	188	# native
	189	BFD_ROOT_DIR = /usr
	190	else
	191	#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
	192	#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
	193	BFD_ROOT_DIR = /opt/powerpc
	194	endif
	195	endif
	196
	197	ifeq ($(PCI_CLOCK),PCI_66M)
	198	CFLAGS := $(CFLAGS) -DPCI_66M
	199	endif
	200
	201	#########################################################################
	202
	203	export HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
	204	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
	205	export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
	206
	207	#########################################################################
	208
	209	$(obj)%.s: %.S
	210	$(CPP) $(AFLAGS) -o $@ $<
	211	$(obj)%.o: %.S
	212	$(CC) $(AFLAGS) -c -o $@ $<
	213	$(obj)%.o: %.c
	214	$(CC) $(CFLAGS) -c -o $@ $<
	215
	216	#########################################################################