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u-boot/config.mk
Masahiro Yamada dd88ab325c Makefile: Move some scripts imported from Linux 
We have some scripts imported from Linux Kernel:
setlocalversion, checkstack.pl, checkpatch.pl, cleanpatch

They are located under tools/ directory in U-Boot now.
But they were originally located under scripts/ directory
in Linux Kernel.

This commit moves them to the original location.

It is true that binutils-version.sh and dtc-version.sh
do not originate in Linux Kernel, but they should
be moved by analogy to gcc-version.sh.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-12-13 09:18:45 -05:00

387 lines
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Makefile
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#
# (C) Copyright 2000-2013
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier: GPL-2.0+
#
#########################################################################
# Set shell to bash if possible, otherwise fall back to sh
SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi; fi)
export SHELL
ifeq ($(CURDIR),$(SRCTREE))
dir :=
else
dir := $(subst $(SRCTREE)/,,$(CURDIR))
endif
ifneq ($(OBJTREE),$(SRCTREE))
# Create object files for SPL in a separate directory
ifeq ($(CONFIG_SPL_BUILD),y)
ifeq ($(CONFIG_TPL_BUILD),y)
obj := $(if $(dir),$(TPLTREE)/$(dir)/,$(TPLTREE)/)
else
obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
endif
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)
ifeq ($(CONFIG_TPL_BUILD),y)
obj := $(if $(dir),$(TPLTREE)/$(dir)/,$(TPLTREE)/)
else
obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
endif
$(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, gcc version (courtesy linux kernel) to ensure
# only supported compiler options are used
#
CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
CC_TEST_OFILE := $(OBJTREE)/include/generated/cc_test_file.o
-include $(CC_OPTIONS_CACHE_FILE)
cc-option-sys = $(shell mkdir -p $(dir $(CC_TEST_OFILE)); \
if $(CC) $(CFLAGS) $(1) -S -xc /dev/null -o $(CC_TEST_OFILE) \
> /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
# cc-version
# Usage gcc-ver := $(call cc-version)
cc-version = $(shell $(SHELL) $(SRCTREE)/scripts/gcc-version.sh $(CC))
binutils-version = $(shell $(SHELL) $(SRCTREE)/scripts/binutils-version.sh $(AS))
dtc-version = $(shell $(SHELL) $(SRCTREE)/scripts/dtc-version.sh $(DTC))
#
# Include the make variables (CC, etc...)
#
AS = $(CROSS_COMPILE)as
# Always use GNU ld
LD = $(shell if $(CROSS_COMPILE)ld.bfd -v > /dev/null 2>&1; \
then echo "$(CROSS_COMPILE)ld.bfd"; else echo "$(CROSS_COMPILE)ld"; fi;)
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 = $(CROSS_COMPILE)RANLIB
DTC = dtc
CHECK = sparse
#########################################################################
# Load generated board configuration
ifeq ($(CONFIG_TPL_BUILD),y)
# Include TPL autoconf
sinclude $(OBJTREE)/include/tpl-autoconf.mk
else
ifeq ($(CONFIG_SPL_BUILD),y)
# Include SPL autoconf
sinclude $(OBJTREE)/include/spl-autoconf.mk
else
# Include normal autoconf
sinclude $(OBJTREE)/include/autoconf.mk
endif
endif
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
# TODO(sjg@chromium.org): Is this correct on Mac OS?
# MXSImage needs LibSSL
ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
HOSTLIBS += -lssl -lcrypto
# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
# the mxsimage support within tools/mxsimage.c .
HOSTCFLAGS += -DCONFIG_MXS
endif
ifdef CONFIG_FIT_SIGNATURE
HOSTLIBS += -lssl -lcrypto
# This affects include/image.h, but including the board config file
# is tricky, so manually define this options here.
HOSTCFLAGS += -DCONFIG_FIT_SIGNATURE
endif
ifneq ($(CONFIG_SYS_TEXT_BASE),)
CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
endif
ifeq ($(CONFIG_SPL_BUILD),y)
CPPFLAGS += -DCONFIG_SPL_BUILD
ifeq ($(CONFIG_TPL_BUILD),y)
CPPFLAGS += -DCONFIG_TPL_BUILD
endif
endif
# Does this architecture support generic board init?
ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
endif
endif
# Sandbox needs the base flags and includes, so keep them around
BASE_CPPFLAGS := $(CPPFLAGS)
ifneq ($(OBJTREE),$(SRCTREE))
BASE_INCLUDE_DIRS := $(OBJTREE)/include
endif
BASE_INCLUDE_DIRS += $(TOPDIR)/include $(SRCTREE)/arch/$(ARCH)/include
CPPFLAGS += $(patsubst %, -I%, $(BASE_INCLUDE_DIRS))
CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
ifdef BUILD_TAG
CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
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)
# Report stack usage if supported
CFLAGS_STACK := $(call cc-option,-fstack-usage)
CFLAGS += $(CFLAGS_STACK)
BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
ifeq ($(findstring examples/,$(BCURDIR)),)
ifeq ($(CONFIG_SPL_BUILD),)
ifdef FTRACE
CFLAGS += -finstrument-functions -DFTRACE
endif
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 += $(PLATFORM_LDFLAGS)
LDFLAGS_FINAL += -Bstatic
LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
ifneq ($(CONFIG_SYS_TEXT_BASE),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
endif
LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
ifneq ($(CONFIG_SPL_TEXT_BASE),)
LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
endif
# Linus' kernel sanity checking tool
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
# 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
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
$(obj)%.o: %.c
ifneq ($(CHECKSRC),0)
$(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $<
endif
$(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 $@ )
#########################################################################
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