262 lines
7.6 KiB
Makefile
262 lines
7.6 KiB
Makefile
#
|
|
# (C) Copyright 2000-2006
|
|
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
#
|
|
# 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
|
|
#
|
|
|
|
#########################################################################
|
|
|
|
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 =
|
|
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)
|
|
HOSTCC = cc
|
|
HOSTCFLAGS += -traditional-cpp
|
|
HOSTLDFLAGS += -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 $(OBJTREE)/include/autoconf.mk
|
|
|
|
# Some architecture config.mk files need to know what CPUDIR is set to,
|
|
# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
|
|
# Check if arch/$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
|
|
|
|
#########################################################################
|
|
|
|
ifneq (,$(findstring s,$(MAKEFLAGS)))
|
|
ARFLAGS = cr
|
|
else
|
|
ARFLAGS = crv
|
|
endif
|
|
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=$(TEXT_BASE)
|
|
endif
|
|
|
|
ifneq ($(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 += $(call cc-option,-fno-stack-protector)
|
|
|
|
# avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9)
|
|
# this option have to be placed behind -Wall -- that's why it is here
|
|
ifeq ($(ARCH),nios)
|
|
ifeq ($(findstring 2.9,$(shell $(CC) --version)),2.9)
|
|
CFLAGS := $(CPPFLAGS) -Wall -Wno-trigraphs
|
|
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 += -Bstatic -T $(obj)u-boot.lds $(PLATFORM_LDFLAGS)
|
|
ifneq ($(TEXT_BASE),)
|
|
LDFLAGS += -Ttext $(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 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)%=%))
|
|
$(obj)%.s: %.S
|
|
$(CPP) $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) \
|
|
-o $@ $<
|
|
$(obj)%.o: %.S
|
|
$(CC) $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) \
|
|
-o $@ $< -c
|
|
$(obj)%.o: %.c
|
|
$(CC) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
|
|
-o $@ $< -c
|
|
$(obj)%.i: %.c
|
|
$(CPP) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
|
|
-o $@ $< -c
|
|
$(obj)%.s: %.c
|
|
$(CC) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
|
|
-o $@ $< -c -S
|
|
|
|
#########################################################################
|