X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=config.mk;h=05864aabb5a99c92864161b59b2fae3fdbb16a83;hp=74617d33b7bf66e1cb3ee912af30c9a78a832af8;hb=8b0d1bbc7e181945d84db667d63081a96ea40a47;hpb=f6322eb7af6a0fafe44f30577c828e175e6c662e diff --git a/config.mk b/config.mk index 74617d33b7..05864aabb5 100644 --- a/config.mk +++ b/config.mk @@ -6,243 +6,59 @@ # ######################################################################### -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 = - -######################################################################### -# -# Option checker, gcc version (courtesy linux kernel) to ensure -# only supported compiler options are used +# This file is included from ./Makefile and spl/Makefile. +# Clean the state to avoid the same flags added twice. # -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 $(CONFIG_SHELL) $(SRCTREE)/scripts/gcc-version.sh $(CC)) -binutils-version = $(shell $(CONFIG_SHELL) $(SRCTREE)/scripts/binutils-version.sh $(AS)) -dtc-version = $(shell $(CONFIG_SHELL) $(SRCTREE)/scripts/dtc-version.sh $(DTC)) - +# (Tegra needs different flags for SPL. +# That's the reason why this file must be included from spl/Makefile too. +# If we did not have Tegra SoCs, build system would be much simpler...) +PLATFORM_RELFLAGS := +PLATFORM_CPPFLAGS := +PLATFORM_LDFLAGS := +LDFLAGS := +LDFLAGS_FINAL := +OBJCOPYFLAGS := ######################################################################### -# Load generated board configuration -ifeq ($(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))) +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 +sinclude $(srctree)/arch/$(ARCH)/config.mk # include architecture dependend rules +sinclude $(srctree)/$(CPUDIR)/config.mk # include CPU specific rules ifdef SOC -sinclude $(TOPDIR)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules +sinclude $(srctree)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules endif +ifneq ($(BOARD),) ifdef VENDOR BOARDDIR = $(VENDOR)/$(BOARD) else BOARDDIR = $(BOARD) endif +endif ifdef BOARD -sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules +sinclude $(srctree)/board/$(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 - -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 = $(error Your architecture does not support generic board. \ -Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file) -endif -endif - -ifneq ($(OBJTREE),$(SRCTREE)) -CPPFLAGS += -I$(OBJTREE)/include -endif +RELFLAGS := $(PLATFORM_RELFLAGS) -CPPFLAGS += -I$(TOPDIR)/include -I$(SRCTREE)/arch/$(ARCH)/include -CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \ - -isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS) +OBJCOPYFLAGS += --gap-fill=0xff -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 - -# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g -# option to the assembler. -AFLAGS_DEBUG := - -# turn jbsr into jsr for m68k -ifeq ($(ARCH),m68k) -ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) -AFLAGS_DEBUG := -Wa,-gstabs,-S -endif -endif - -AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) +PLATFORM_CPPFLAGS += $(RELFLAGS) +PLATFORM_CPPFLAGS += -pipe 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 - -# 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 CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS +export PLATFORM_CPPFLAGS +export RELFLAGS +export LDFLAGS_FINAL +export CONFIG_STANDALONE_LOAD_ADDR