#
-# (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))
-ifeq ($(CURDIR),$(SRCTREE))
-dir :=
-else
-dir := $(subst $(SRCTREE)/,,$(CURDIR))
-endif
-
-obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
-src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
-
-$(shell mkdir -p $(obj))
-else
-obj :=
-src :=
-endif
-
# clean the slate ...
PLATFORM_RELFLAGS =
PLATFORM_CPPFLAGS =
#########################################################################
-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-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
-LDR = $(CROSS_COMPILE)ldr
-STRIP = $(CROSS_COMPILE)strip
-OBJCOPY = $(CROSS_COMPILE)objcopy
-OBJDUMP = $(CROSS_COMPILE)objdump
-RANLIB = $(CROSS_COMPILE)RANLIB
-
-#########################################################################
-
-# 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
ifdef SOC
sinclude $(TOPDIR)/$(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
endif
#########################################################################
-ifneq (,$(findstring s,$(MAKEFLAGS)))
-ARFLAGS = cr
-else
-ARFLAGS = crv
-endif
RELFLAGS= $(PLATFORM_RELFLAGS)
-DBGFLAGS= -g # -DDEBUG
-OPTFLAGS= -Os #-fomit-frame-pointer
-# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
-# that (or fail if absent). Otherwise, search for a linker script in a
-# standard location.
+OBJCOPYFLAGS += --gap-fill=0xff
-ifndef LDSCRIPT
- #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
- ifdef CONFIG_SYS_LDSCRIPT
- # need to strip off double quotes
- LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT))
- endif
-endif
-
-ifndef LDSCRIPT
- ifeq ($(CONFIG_NAND_U_BOOT),y)
- LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
- ifeq ($(wildcard $(LDSCRIPT)),)
- LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
- endif
- endif
- ifeq ($(wildcard $(LDSCRIPT)),)
- LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
- endif
- ifeq ($(wildcard $(LDSCRIPT)),)
- LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
- endif
- ifeq ($(wildcard $(LDSCRIPT)),)
-$(error could not find linker script)
- endif
-endif
-
-OBJCFLAGS += --gap-fill=0xff
-
-gccincdir := $(shell $(CC) -print-file-name=include)
-
-CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \
- -D__KERNEL__
-ifneq ($(CONFIG_SYS_TEXT_BASE),)
-CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
-endif
-
-ifneq ($(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 += $(call cc-option,-fno-stack-protector)
-
-# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
-# option to the assembler.
-AFLAGS_DEBUG :=
-
-# turn jbsr into jsr for m68k
-ifeq ($(ARCH),m68k)
-ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
-AFLAGS_DEBUG := -Wa,-gstabs,-S
-endif
-endif
-
-AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
+CPPFLAGS = $(RELFLAGS)
+CPPFLAGS += -pipe $(PLATFORM_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
-
-# 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))
-$(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 $@ )
-
-#########################################################################
projects / karo-tx-uboot.git / blobdiff