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

#
# (C) Copyright 2000
# 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
#

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

# 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

ifeq ($(ARCH),blackfin)
PLATFORM_CPPFLAGS+= -D__BLACKFIN__ -mno-underscore
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

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

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

RELFLAGS= $(PLATFORM_RELFLAGS)
DBGFLAGS= -g #-DDEBUG
OPTFLAGS= -Os #-fomit-frame-pointer
ifndef LDSCRIPT
#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
endif
OBJCFLAGS += --gap-fill=0xff

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

CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS)		\
	-D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE)		\
	-I$(TOPDIR)/include				\
	-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

AFLAGS_DEBUG := -Wa,-gstabs
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

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

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

#########################################################################
Commit	Line	Data
	1	#
	2	# (C) Copyright 2000
	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	# clean the slate ...
	27	PLATFORM_RELFLAGS =
	28	PLATFORM_CPPFLAGS =
	29	PLATFORM_LDFLAGS =
	30
	31	#
	32	# When cross-compiling on NetBSD, we have to define __PPC__ or else we
	33	# will pick up a va_list declaration that is incompatible with the
	34	# actual argument lists emitted by the compiler.
	35	#
	36	# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
	37
	38	ifeq ($(ARCH),ppc)
	39	ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
	40	PLATFORM_CPPFLAGS+= -D__PPC__
	41	endif
	42	ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
	43	PLATFORM_CPPFLAGS+= -D__PPC__
	44	endif
	45	endif
	46
	47	ifeq ($(ARCH),arm)
	48	ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
	49	PLATFORM_CPPFLAGS+= -D__ARM__
	50	endif
	51	ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
	52	PLATFORM_CPPFLAGS+= -D__ARM__
	53	endif
	54	endif
	55
	56	ifeq ($(ARCH),blackfin)
	57	PLATFORM_CPPFLAGS+= -D__BLACKFIN__ -mno-underscore
	58	endif
	59
	60	ifdef ARCH
	61	sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules
	62	endif
	63	ifdef CPU
	64	sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules
	65	endif
	66	ifdef SOC
	67	sinclude $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules
	68	endif
	69	ifdef VENDOR
	70	BOARDDIR = $(VENDOR)/$(BOARD)
	71	else
	72	BOARDDIR = $(BOARD)
	73	endif
	74	ifdef BOARD
	75	sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
	76	endif
	77
	78	#########################################################################
	79
	80	CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
	81	else if [ -x /bin/bash ]; then echo /bin/bash; \
	82	else echo sh; fi ; fi)
	83
	84	ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
	85	HOSTCC = cc
	86	else
	87	HOSTCC = gcc
	88	endif
	89	HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
	90	HOSTSTRIP = strip
	91
	92	#########################################################################
	93	#
	94	# Option checker (courtesy linux kernel) to ensure
	95	# only supported compiler options are used
	96	#
	97	cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
	98	> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
	99
	100	#
	101	# Include the make variables (CC, etc...)
	102	#
	103	AS = $(CROSS_COMPILE)as
	104	LD = $(CROSS_COMPILE)ld
	105	CC = $(CROSS_COMPILE)gcc
	106	CPP = $(CC) -E
	107	AR = $(CROSS_COMPILE)ar
	108	NM = $(CROSS_COMPILE)nm
	109	STRIP = $(CROSS_COMPILE)strip
	110	OBJCOPY = $(CROSS_COMPILE)objcopy
	111	OBJDUMP = $(CROSS_COMPILE)objdump
	112	RANLIB = $(CROSS_COMPILE)RANLIB
	113
	114	RELFLAGS= $(PLATFORM_RELFLAGS)
	115	DBGFLAGS= -g #-DDEBUG
	116	OPTFLAGS= -Os #-fomit-frame-pointer
	117	ifndef LDSCRIPT
	118	#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
	119	LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
	120	endif
	121	OBJCFLAGS += --gap-fill=0xff
	122
	123	gccincdir := $(shell $(CC) -print-file-name=include)
	124
	125	CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
	126	-D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \
	127	-I$(TOPDIR)/include \
	128	-fno-builtin -ffreestanding -nostdinc -isystem \
	129	$(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
	130
	131	ifdef BUILD_TAG
	132	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
	133	-DBUILD_TAG='"$(BUILD_TAG)"'
	134	else
	135	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
	136	endif
	137
	138	# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
	139	# this option have to be placed behind -Wall -- that's why it is here
	140	ifeq ($(ARCH),nios)
	141	ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
	142	CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
	143	endif
	144	endif
	145
	146	AFLAGS_DEBUG := -Wa,-gstabs
	147	AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
	148
	149	LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
	150
	151	# Location of a usable BFD library, where we define "usable" as
	152	# "built for ${HOST}, supports ${TARGET}". Sensible values are
	153	# - When cross-compiling: the root of the cross-environment
	154	# - Linux/ppc (native): /usr
	155	# - NetBSD/ppc (native): you lose ... (must extract these from the
	156	# binutils build directory, plus the native and U-Boot include
	157	# files don't like each other)
	158	#
	159	# So far, this is used only by tools/gdb/Makefile.
	160
	161	ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc)
	162	BFD_ROOT_DIR = /usr/local/tools
	163	else
	164	ifeq ($(HOSTARCH),$(ARCH))
	165	# native
	166	BFD_ROOT_DIR = /usr
	167	else
	168	#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
	169	#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
	170	BFD_ROOT_DIR = /opt/powerpc
	171	endif
	172	endif
	173
	174	ifeq ($(PCI_CLOCK),PCI_66M)
	175	CFLAGS := $(CFLAGS) -DPCI_66M
	176	endif
	177
	178	#########################################################################
	179
	180	export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \
	181	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \
	182	MAKE
	183	export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
	184
	185	#########################################################################
	186
	187	%.s: %.S
	188	$(CPP) $(AFLAGS) -o $@ $(CURDIR)/$<
	189	%.o: %.S
	190	$(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$<
	191	%.o: %.c
	192	$(CC) $(CFLAGS) -c -o $@ $<
	193
	194	#########################################################################