[J-u-boot.git] / config.mk

#
# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, [email protected].
#
# 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
#

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

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

ifneq ($(OBJTREE),$(SRCTREE))
# Create object files for SPL in a separate directory
ifeq ($(CONFIG_SPL_BUILD),y)
obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
else
obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
endif
src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)

$(shell mkdir -p $(obj))
else
# Create object files for SPL in a separate directory
ifeq ($(CONFIG_SPL_BUILD),y)
obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)

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

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

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

HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
		  $(HOSTCPPFLAGS)
HOSTSTRIP	= strip

#
# Mac OS X / Darwin's C preprocessor is Apple specific.  It
# generates numerous errors and warnings.  We want to bypass it
# and use GNU C's cpp.	To do this we pass the -traditional-cpp
# option to the compiler.  Note that the -traditional-cpp flag
# DOES NOT have the same semantics as GNU C's flag, all it does
# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
#
# Apple's linker is similar, thanks to the new 2 stage linking
# multiple symbol definitions are treated as errors, hence the
# -multiply_defined suppress option to turn off this error.
#

ifeq ($(HOSTOS),darwin)
# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')

os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)

# Snow Leopards build environment has no longer restrictions as described above
HOSTCC		 = $(call os_x_before, 10, 5, "cc", "gcc")
HOSTCFLAGS	+= $(call os_x_before, 10, 4, "-traditional-cpp")
HOSTLDFLAGS	+= $(call os_x_before, 10, 5, "-multiply_defined suppress")
else
HOSTCC		= gcc
endif

ifeq ($(HOSTOS),cygwin)
HOSTCFLAGS	+= -ansi
endif

# We build some files with extra pedantic flags to try to minimize things
# that won't build on some weird host compiler -- though there are lots of
# exceptions for files that aren't complaint.

HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
HOSTCFLAGS	+= -pedantic

#########################################################################
#
# Option checker (courtesy linux kernel) to ensure
# only supported compiler options are used
#
CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk

$(if $(wildcard $(CC_OPTIONS_CACHE_FILE)),,\
	$(shell mkdir -p $(dir $(CC_OPTIONS_CACHE_FILE))))

-include $(CC_OPTIONS_CACHE_FILE)

cc-option-sys = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
		> /dev/null 2>&1; then \
		echo 'CC_OPTIONS += $(strip $1)' >> $(CC_OPTIONS_CACHE_FILE); \
		echo "$(1)"; fi)

ifeq ($(CONFIG_CC_OPT_CACHE_DISABLE),y)
cc-option = $(strip $(if $(call cc-option-sys,$1),$1,$2))
else
cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
		$(if $(call cc-option-sys,$1),$1,$2)))
endif

#
# 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
DTC	= dtc

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

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

# Some architecture config.mk files need to know what CPUDIR is set to,
# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
# CPU-specific code.
CPUDIR=arch/$(ARCH)/cpu/$(CPU)
ifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR)))
CPUDIR=arch/$(ARCH)/cpu
endif

sinclude $(TOPDIR)/arch/$(ARCH)/config.mk	# include architecture dependend rules
sinclude $(TOPDIR)/$(CPUDIR)/config.mk		# include  CPU	specific rules

ifdef	SOC
sinclude $(TOPDIR)/$(CPUDIR)/$(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

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

# We don't actually use $(ARFLAGS) anywhere anymore, so catch people
# who are porting old code to latest mainline but not updating $(AR).
ARFLAGS = $(error update your Makefile to use cmd_link_o_target and not AR)
RELFLAGS= $(PLATFORM_RELFLAGS)
DBGFLAGS= -g # -DDEBUG
OPTFLAGS= -Os #-fomit-frame-pointer

OBJCFLAGS += --gap-fill=0xff

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

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

# Enable garbage collection of un-used sections for SPL
ifeq ($(CONFIG_SPL_BUILD),y)
CPPFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections
endif

ifneq ($(CONFIG_SYS_TEXT_BASE),)
CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
endif

ifneq ($(CONFIG_SPL_TEXT_BASE),)
CPPFLAGS += -DCONFIG_SPL_TEXT_BASE=$(CONFIG_SPL_TEXT_BASE)
endif

ifeq ($(CONFIG_SPL_BUILD),y)
CPPFLAGS += -DCONFIG_SPL_BUILD
endif

ifneq ($(RESET_VECTOR_ADDRESS),)
CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS)
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_SSP := $(call cc-option,-fno-stack-protector)
CFLAGS += $(CFLAGS_SSP)
# Some toolchains enable security related warning flags by default,
# but they don't make much sense in the u-boot world, so disable them.
CFLAGS_WARN := $(call cc-option,-Wno-format-nonliteral) \
	       $(call cc-option,-Wno-format-security)
CFLAGS += $(CFLAGS_WARN)

# $(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 += $(PLATFORM_LDFLAGS)
LDFLAGS_FINAL += -Bstatic

LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
ifneq ($(CONFIG_SYS_TEXT_BASE),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
endif

LDFLAGS_u-boot-spl += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
ifneq ($(CONFIG_SPL_TEXT_BASE),)
LDFLAGS_u-boot-spl += -Ttext $(CONFIG_SPL_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

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

export	HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
export	CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS

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

# Allow boards to use custom optimize flags on a per dir/file basis
BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
ALL_CFLAGS += $(EXTRA_CPPFLAGS)

# The _DEP version uses the $< file target (for dependency generation)
# See rules.mk
EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \
		$(CPPFLAGS_$(BCURDIR))
$(obj)%.s:	%.S
	$(CPP) $(ALL_AFLAGS) -o $@ $<
$(obj)%.o:	%.S
	$(CC)  $(ALL_AFLAGS) -o $@ $< -c
$(obj)%.o:	%.c
	$(CC)  $(ALL_CFLAGS) -o $@ $< -c
$(obj)%.i:	%.c
	$(CPP) $(ALL_CFLAGS) -o $@ $< -c
$(obj)%.s:	%.c
	$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S

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

# If the list of objects to link is empty, just create an empty built-in.o
cmd_link_o_target = $(if $(strip $1),\
		      $(LD) $(LDFLAGS) -r -o $@ $1,\
		      rm -f $@; $(AR) rcs $@ )

#########################################################################
Commit	Line	Data
e2211743	1	#
f9328639	2	# (C) Copyright 2000-2006
e2211743 WD	3	# Wolfgang Denk, DENX Software Engineering, [email protected].
	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
844f07d8	15	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
e2211743 WD	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
f9328639	26	ifeq ($(CURDIR),$(SRCTREE))
511d0c72	27	dir :=
f9328639 MB	28	else
	29	dir := $(subst $(SRCTREE)/,,$(CURDIR))
	30	endif
	31
c8f9c302 DS	32	ifneq ($(OBJTREE),$(SRCTREE))
	33	# Create object files for SPL in a separate directory
	34	ifeq ($(CONFIG_SPL_BUILD),y)
	35	obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
	36	else
f9328639	37	obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
c8f9c302	38	endif
f9328639 MB	39	src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
f9328639 MB	40
c8f9c302 DS	41	$(shell mkdir -p $(obj))
	42	else
	43	# Create object files for SPL in a separate directory
	44	ifeq ($(CONFIG_SPL_BUILD),y)
	45	obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
	46
f9328639 MB	47	$(shell mkdir -p $(obj))
	48	else
	49	obj :=
c8f9c302	50	endif
f9328639 MB	51	src :=
	52	endif
	53
592c5cab WD	54	# clean the slate ...
	55	PLATFORM_RELFLAGS =
	56	PLATFORM_CPPFLAGS =
	57	PLATFORM_LDFLAGS =
	58
e2211743 WD	59	#########################################################################
e2211743 WD	60
d984fed0 SW	61	HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
	62	$(HOSTCPPFLAGS)
	63	HOSTSTRIP = strip
	64
	65	#
	66	# Mac OS X / Darwin's C preprocessor is Apple specific. It
	67	# generates numerous errors and warnings. We want to bypass it
844f07d8	68	# and use GNU C's cpp. To do this we pass the -traditional-cpp
d984fed0 SW	69	# option to the compiler. Note that the -traditional-cpp flag
	70	# DOES NOT have the same semantics as GNU C's flag, all it does
	71	# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
	72	#
	73	# Apple's linker is similar, thanks to the new 2 stage linking
	74	# multiple symbol definitions are treated as errors, hence the
	75	# -multiply_defined suppress option to turn off this error.
	76	#
	77
4cda4378	78	ifeq ($(HOSTOS),darwin)
c7da8c19 AB	79	# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
	80	DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion \| cut -f 1 -d '.')
	81	DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion \| cut -f 2 -d '.')
	82
f534c7cd MF	83	os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
f534c7cd MF	84	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
c7da8c19 AB	85
c7da8c19 AB	86	# Snow Leopards build environment has no longer restrictions as described above
f534c7cd MF	87	HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
	88	HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
	89	HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
e2211743 WD	90	else
	91	HOSTCC = gcc
	92	endif
d984fed0 SW	93
	94	ifeq ($(HOSTOS),cygwin)
	95	HOSTCFLAGS += -ansi
	96	endif
	97
	98	# We build some files with extra pedantic flags to try to minimize things
	99	# that won't build on some weird host compiler -- though there are lots of
	100	# exceptions for files that aren't complaint.
	101
	102	HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
	103	HOSTCFLAGS += -pedantic
e2211743 WD	104
e2211743 WD	105	#########################################################################
1820d4c7 WD	106	#
	107	# Option checker (courtesy linux kernel) to ensure
	108	# only supported compiler options are used
	109	#
b6a467d7 DS	110	CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
	111
	112	$(if $(wildcard $(CC_OPTIONS_CACHE_FILE)),,\
	113	$(shell mkdir -p $(dir $(CC_OPTIONS_CACHE_FILE))))
	114
	115	-include $(CC_OPTIONS_CACHE_FILE)
	116
	117	cc-option-sys = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
	118	> /dev/null 2>&1; then \
	119	echo 'CC_OPTIONS += $(strip $1)' >> $(CC_OPTIONS_CACHE_FILE); \
	120	echo "$(1)"; fi)
	121
	122	ifeq ($(CONFIG_CC_OPT_CACHE_DISABLE),y)
	123	cc-option = $(strip $(if $(call cc-option-sys,$1),$1,$2))
	124	else
	125	cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
	126	$(if $(call cc-option-sys,$1),$1,$2)))
	127	endif
e2211743 WD	128
	129	#
	130	# Include the make variables (CC, etc...)
	131	#
	132	AS = $(CROSS_COMPILE)as
	133	LD = $(CROSS_COMPILE)ld
	134	CC = $(CROSS_COMPILE)gcc
	135	CPP = $(CC) -E
	136	AR = $(CROSS_COMPILE)ar
	137	NM = $(CROSS_COMPILE)nm
94a91e24	138	LDR = $(CROSS_COMPILE)ldr
e2211743 WD	139	STRIP = $(CROSS_COMPILE)strip
	140	OBJCOPY = $(CROSS_COMPILE)objcopy
	141	OBJDUMP = $(CROSS_COMPILE)objdump
	142	RANLIB = $(CROSS_COMPILE)RANLIB
bbb0b128	143	DTC = dtc
e2211743	144
c4e5f52a WD	145	#########################################################################
	146
	147	# Load generated board configuration
	148	sinclude $(OBJTREE)/include/autoconf.mk
5e987ddf	149	sinclude $(OBJTREE)/include/config.mk
c4e5f52a	150
03b7004d PT	151	# Some architecture config.mk files need to know what CPUDIR is set to,
03b7004d PT	152	# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
8d1f2682 PT	153	# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
	154	# CPU-specific code.
	155	CPUDIR=arch/$(ARCH)/cpu/$(CPU)
	156	ifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR)))
	157	CPUDIR=arch/$(ARCH)/cpu
	158	endif
03b7004d	159
ea0364f1	160	sinclude $(TOPDIR)/arch/$(ARCH)/config.mk # include architecture dependend rules
03b7004d PT	161	sinclude $(TOPDIR)/$(CPUDIR)/config.mk # include CPU specific rules
03b7004d PT	162
c4e5f52a	163	ifdef SOC
03b7004d	164	sinclude $(TOPDIR)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules
c4e5f52a WD	165	endif
	166	ifdef VENDOR
	167	BOARDDIR = $(VENDOR)/$(BOARD)
	168	else
	169	BOARDDIR = $(BOARD)
	170	endif
	171	ifdef BOARD
	172	sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
	173	endif
	174
	175	#########################################################################
	176
5968adc4 MF	177	# We don't actually use $(ARFLAGS) anywhere anymore, so catch people
	178	# who are porting old code to latest mainline but not updating $(AR).
	179	ARFLAGS = $(error update your Makefile to use cmd_link_o_target and not AR)
e2211743	180	RELFLAGS= $(PLATFORM_RELFLAGS)
9acb626f	181	DBGFLAGS= -g # -DDEBUG
e2211743	182	OPTFLAGS= -Os #-fomit-frame-pointer
83b7e2a7	183
6dd652fa	184	OBJCFLAGS += --gap-fill=0xff
e2211743	185
b783edae WD	186	gccincdir := $(shell $(CC) -print-file-name=include)
b783edae WD	187
e2211743	188	CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
161b2af4	189	-D__KERNEL__
c8f9c302 DS	190
	191	# Enable garbage collection of un-used sections for SPL
	192	ifeq ($(CONFIG_SPL_BUILD),y)
	193	CPPFLAGS += -ffunction-sections -fdata-sections
	194	LDFLAGS_FINAL += --gc-sections
	195	endif
	196
14d0a02a WD	197	ifneq ($(CONFIG_SYS_TEXT_BASE),)
14d0a02a WD	198	CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
161b2af4	199	endif
f9328639	200
c8f9c302 DS	201	ifneq ($(CONFIG_SPL_TEXT_BASE),)
	202	CPPFLAGS += -DCONFIG_SPL_TEXT_BASE=$(CONFIG_SPL_TEXT_BASE)
	203	endif
	204
	205	ifeq ($(CONFIG_SPL_BUILD),y)
	206	CPPFLAGS += -DCONFIG_SPL_BUILD
	207	endif
	208
6c97a20d KG	209	ifneq ($(RESET_VECTOR_ADDRESS),)
	210	CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS)
	211	endif
	212
f9328639 MB	213	ifneq ($(OBJTREE),$(SRCTREE))
	214	CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
	215	endif
	216
	217	CPPFLAGS += -I$(TOPDIR)/include
53677ef1	218	CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
f9328639	219	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
e2211743 WD	220
	221	ifdef BUILD_TAG
	222	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
	223	-DBUILD_TAG='"$(BUILD_TAG)"'
	224	else
	225	CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
	226	endif
	227
cca4e4ae WD	228	CFLAGS_SSP := $(call cc-option,-fno-stack-protector)
cca4e4ae WD	229	CFLAGS += $(CFLAGS_SSP)
6262e4e7 MF	230	# Some toolchains enable security related warning flags by default,
6262e4e7 MF	231	# but they don't make much sense in the u-boot world, so disable them.
cca4e4ae WD	232	CFLAGS_WARN := $(call cc-option,-Wno-format-nonliteral) \
	233	$(call cc-option,-Wno-format-security)
	234	CFLAGS += $(CFLAGS_WARN)
28eab0d7	235
e11887a7 HS	236	# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
	237	# option to the assembler.
	238	AFLAGS_DEBUG :=
b62fa913	239
483a0cf8 MB	240	# turn jbsr into jsr for m68k
	241	ifeq ($(ARCH),m68k)
	242	ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
	243	AFLAGS_DEBUG := -Wa,-gstabs,-S
	244	endif
483a0cf8	245	endif
b62fa913	246
e2211743 WD	247	AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
e2211743 WD	248
8aba9dce	249	LDFLAGS += $(PLATFORM_LDFLAGS)
6dc1eceb	250	LDFLAGS_FINAL += -Bstatic
8aba9dce	251
6dc1eceb	252	LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
14d0a02a	253	ifneq ($(CONFIG_SYS_TEXT_BASE),)
8aba9dce	254	LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
161b2af4	255	endif
e2211743	256
c8f9c302 DS	257	LDFLAGS_u-boot-spl += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
	258	ifneq ($(CONFIG_SPL_TEXT_BASE),)
	259	LDFLAGS_u-boot-spl += -Ttext $(CONFIG_SPL_TEXT_BASE)
	260	endif
	261
e2211743 WD	262	# Location of a usable BFD library, where we define "usable" as
	263	# "built for ${HOST}, supports ${TARGET}". Sensible values are
	264	# - When cross-compiling: the root of the cross-environment
	265	# - Linux/ppc (native): /usr
	266	# - NetBSD/ppc (native): you lose ... (must extract these from the
	267	# binutils build directory, plus the native and U-Boot include
	268	# files don't like each other)
	269	#
	270	# So far, this is used only by tools/gdb/Makefile.
	271
4cda4378	272	ifeq ($(HOSTOS),darwin)
e2211743 WD	273	BFD_ROOT_DIR = /usr/local/tools
e2211743 WD	274	else
ea909b76 WD	275	ifeq ($(HOSTARCH),$(ARCH))
	276	# native
	277	BFD_ROOT_DIR = /usr
	278	else
e2211743 WD	279	#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
e2211743 WD	280	#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
e2211743 WD	281	BFD_ROOT_DIR = /opt/powerpc
e2211743 WD	282	endif
ea909b76	283	endif
e2211743 WD	284
	285	#########################################################################
	286
d984fed0	287	export HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
434c51a5	288	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
14d0a02a	289	export CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
e2211743 WD	290
	291	#########################################################################
	292
5ec5529b	293	# Allow boards to use custom optimize flags on a per dir/file basis
89f39e17	294	BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
326a6945 MF	295	ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
326a6945 MF	296	ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
47508843 SG	297	EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
	298	ALL_CFLAGS += $(EXTRA_CPPFLAGS)
	299
	300	# The _DEP version uses the $< file target (for dependency generation)
	301	# See rules.mk
	302	EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \
	303	$(CPPFLAGS_$(BCURDIR))
f9328639	304	$(obj)%.s: %.S
326a6945	305	$(CPP) $(ALL_AFLAGS) -o $@ $<
f9328639	306	$(obj)%.o: %.S
326a6945	307	$(CC) $(ALL_AFLAGS) -o $@ $< -c
f9328639	308	$(obj)%.o: %.c
326a6945	309	$(CC) $(ALL_CFLAGS) -o $@ $< -c
31f30c9e	310	$(obj)%.i: %.c
326a6945	311	$(CPP) $(ALL_CFLAGS) -o $@ $< -c
31f30c9e	312	$(obj)%.s: %.c
326a6945	313	$(CC) $(ALL_CFLAGS) -o $@ $< -c -S
f9328639	314
e2211743	315	#########################################################################
6d8962e8 SC	316
	317	# If the list of objects to link is empty, just create an empty built-in.o
	318	cmd_link_o_target = $(if $(strip $1),\
8aba9dce	319	$(LD) $(LDFLAGS) -r -o $@ $1,\
844f07d8	320	rm -f $@; $(AR) rcs $@ )
6d8962e8 SC	321
6d8962e8 SC	322	#########################################################################