X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=config.mk;h=4c4551828f42f98145b5ddbde346dab2ffbcadc7;hp=1dac29be57ba3f79d3eb94c126139c37d7b6679e;hb=12aeca6d4dfb76d8c1087f6fdf5a7f8e7aff0a45;hpb=b223017f081d7e0daa33ad17a3cd05b0c1f7d9ba diff --git a/config.mk b/config.mk index 1dac29be57..4c4551828f 100644 --- a/config.mk +++ b/config.mk @@ -1,41 +1,43 @@ # -# (C) Copyright 2000-2006 +# (C) Copyright 2000-2013 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # -# See file CREDITS for list of people who contributed to this -# project. +# SPDX-License-Identifier: GPL-2.0+ # -# 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)) +# 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) +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 $(obj)) else obj := +endif src := endif @@ -44,58 +46,90 @@ PLATFORM_RELFLAGS = PLATFORM_CPPFLAGS = PLATFORM_LDFLAGS = -# -# When cross-compiling on NetBSD, we have to define __PPC__ or else we -# will pick up a va_list declaration that is incompatible with the -# actual argument lists emitted by the compiler. -# -# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] +######################################################################### -ifeq ($(ARCH),ppc) -ifeq ($(CROSS_COMPILE),powerpc-netbsd-) -PLATFORM_CPPFLAGS+= -D__PPC__ -endif -ifeq ($(CROSS_COMPILE),powerpc-openbsd-) -PLATFORM_CPPFLAGS+= -D__PPC__ -endif -endif +HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ + $(HOSTCPPFLAGS) +HOSTSTRIP = strip -ifeq ($(ARCH),arm) -ifeq ($(CROSS_COMPILE),powerpc-netbsd-) -PLATFORM_CPPFLAGS+= -D__ARM__ -endif -ifeq ($(CROSS_COMPILE),powerpc-openbsd-) -PLATFORM_CPPFLAGS+= -D__ARM__ -endif -endif +# +# 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 '.') -CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ - else if [ -x /bin/bash ]; then echo /bin/bash; \ - else echo sh; fi ; fi) +os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ + $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) -ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) -HOSTCC = cc +# 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 += $(call os_x_before, 10, 5, "-multiply_defined suppress") else HOSTCC = gcc endif -HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -HOSTSTRIP = strip + +ifeq ($(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 +# Option checker, gcc version (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 ;) +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)/tools/gcc-version.sh $(CC)) +binutils-version = $(shell $(SHELL) $(SRCTREE)/tools/binutils-version.sh $(AS)) +dtc-version = $(shell $(SHELL) $(SRCTREE)/tools/dtc-version.sh $(DTC)) # # Include the make variables (CC, etc...) # AS = $(CROSS_COMPILE)as -LD = $(CROSS_COMPILE)ld + +# 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 @@ -105,20 +139,29 @@ STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump RANLIB = $(CROSS_COMPILE)RANLIB +DTC = dtc +CHECK = sparse ######################################################################### # 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 +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 $(TOPDIR)/cpu/$(CPU)/$(SOC)/config.mk # include SoC specific rules +sinclude $(TOPDIR)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules endif ifdef VENDOR BOARDDIR = $(VENDOR)/$(BOARD) @@ -131,30 +174,65 @@ endif ######################################################################### -ifneq (,$(findstring s,$(MAKEFLAGS))) -ARFLAGS = cr -else -ARFLAGS = crv -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 -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=$(TEXT_BASE) + +# Enable garbage collection of un-used sections for SPL +ifeq ($(CONFIG_SPL_BUILD),y) +CPPFLAGS += -ffunction-sections -fdata-sections +LDFLAGS_FINAL += --gc-sections +endif + +# TODO(sjg@chromium.org): Is this correct on Mac OS? +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 + +ifneq ($(CONFIG_SPL_TEXT_BASE),) +CPPFLAGS += -DCONFIG_SPL_TEXT_BASE=$(CONFIG_SPL_TEXT_BASE) +endif + +ifneq ($(CONFIG_SPL_PAD_TO),) +CPPFLAGS += -DCONFIG_SPL_PAD_TO=$(CONFIG_SPL_PAD_TO) +endif + +ifneq ($(CONFIG_UBOOT_PAD_TO),) +CPPFLAGS += -DCONFIG_UBOOT_PAD_TO=$(CONFIG_UBOOT_PAD_TO) +endif + +ifeq ($(CONFIG_SPL_BUILD),y) +CPPFLAGS += -DCONFIG_SPL_BUILD +endif + +# Does this architecture support generic board init? +ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) +ifneq ($(CONFIG_SYS_GENERIC_BOARD),) +CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \ +Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file) +endif +endif + +ifneq ($(RESET_VECTOR_ADDRESS),) +CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS) endif ifneq ($(OBJTREE),$(SRCTREE)) @@ -165,20 +243,35 @@ CPPFLAGS += -I$(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 := $(CPPFLAGS) -Wall -Wstrict-prototypes + +ifdef BUILD_TAG +CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' +endif + +CFLAGS_SSP := $(call cc-option,-fno-stack-protector) + +# 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_SSP) $(CFLAGS_WARN) $(CPPFLAGS) -Wall -Wstrict-prototypes +ifdef BUILD_TAG + CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' endif -CFLAGS += $(call cc-option,-fno-stack-protector) +# Report stack usage if supported +CFLAGS_STACK := $(call cc-option,-fstack-usage) +CFLAGS += $(CFLAGS_STACK) -# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9) -# this option have to be placed behind -Wall -- that's why it is here -ifeq ($(ARCH),nios) -ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9) -CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs +BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%)) + +ifeq ($(findstring examples/,$(BCURDIR)),) +ifeq ($(CONFIG_SPL_BUILD),) +ifdef FTRACE +CFLAGS += -finstrument-functions -DFTRACE +endif endif endif @@ -195,11 +288,23 @@ endif AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) -LDFLAGS += -Bstatic -T $(LDSCRIPT) $(PLATFORM_LDFLAGS) -ifneq ($(TEXT_BASE),) -LDFLAGS += -Ttext $(TEXT_BASE) +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 + +# 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 ${TARGET}". Sensible values are # - When cross-compiling: the root of the cross-environment @@ -210,7 +315,7 @@ endif # # So far, this is used only by tools/gdb/Makefile. -ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) +ifeq ($(HOSTOS),darwin) BFD_ROOT_DIR = /usr/local/tools else ifeq ($(HOSTARCH),$(ARCH)) @@ -223,36 +328,43 @@ 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 +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 ######################################################################### -ifndef REMOTE_BUILD - -%.s: %.S - $(CPP) $(AFLAGS) -o $@ $< -%.o: %.S - $(CC) $(AFLAGS) -c -o $@ $< -%.o: %.c - $(CC) $(CFLAGS) -c -o $@ $< - -else +# 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) $(AFLAGS) -o $@ $< + $(CPP) $(ALL_AFLAGS) -o $@ $< $(obj)%.o: %.S - $(CC) $(AFLAGS) -c -o $@ $< + $(CC) $(ALL_AFLAGS) -o $@ $< -c $(obj)%.o: %.c - $(CC) $(CFLAGS) -c -o $@ $< +ifneq ($(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 $@ ) #########################################################################