# Makefile for a simple busybox/uClibc root filesystem # # Copyright (C) 2001-2004 Erik Andersen # Copyright (C) 2002 by Tim Riker # Copyright (C) 2004 Manuel Novoa III # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU Library 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 # Library General Public License for more details. # # You should have received a copy of the GNU Library 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 ############################################################# # # EDIT this stuff to suit your system and preferences # # Use := when possible to get precomputation, thereby # speeding up the build process. # ############################################################# # What sort of target system shall we compile this for? # ARCH:=i386 #ARCH:=arm #ARCH:=mips #ARCH:=mipsel #ARCH:=powerpc #ARCH:=sh4 #ARCH:=cris #ARCH:=sh64 #ARCH:=m68k #ARCH:=v850 #ARCH:=sparc #ARCH:=whatever # Choose the kernel headers to use for kernel-headers target. This is # ignored if you are building your own kernel or using the system kernel. # DEFAULT_KERNEL_HEADERS:=2.4.25 #DEFAULT_KERNEL_HEADERS:=2.6.7 # Choose gcc version. # WARNING -- 2.95 currently only builds for i386, arm, mips*, and powerpc. # WARNING -- 2.95 does not currently build natively for the target. # #GCC_VERSION:=2.95 #GCC_VERSION:=3.3.3 #GCC_VERSION:=3.3.4 #GCC_VERSION:=3.4.0 GCC_VERSION:=3.4.1 # Choose binutils version. # #BINUTILS_VERSION:=2.14.90.0.6 #BINUTILS_VERSION:=2.14.90.0.7 #BINUTILS_VERSION:=2.14.90.0.8 #BINUTILS_VERSION:=2.15 #BINUTILS_VERSION:=2.15.90.0.1 #BINUTILS_VERSION:=2.15.90.0.1.1 #BINUTILS_VERSION:=2.15.90.0.2 BINUTILS_VERSION:=2.15.90.0.3 #BINUTILS_VERSION:=2.15.91.0.1 #BINUTILS_VERSION:=2.15.91.0.2 # Choose gdb version. # #GDB_VERSION:=5.3 GDB_VERSION:=6.1.1 #GDB_VERSION:=6.2 # Enable this to use the uClibc daily snapshot instead of a released # version. Daily snapshots may contain new features and bugfixes. Or # they may not even compile at all, depending on what Erik is doing. # Do you wish to use the latest release (), latest snapshot (snapshot), # or the snapshot from a specific date (yyyymmdd)? Note that snapshots # may contain new features and bugfixes. Or they may not even compile # at all, depending on what Erik and Manuel are doing. # #USE_UCLIBC_SNAPSHOT:= USE_UCLIBC_SNAPSHOT:=snapshot #USE_UCLIBC_SNAPSHOT:=20040807 # Do you wish to use the latest release (), latest snapshot (snapshot), # or the snapshot from a specific date (yyyymmdd)? Note that snapshots # may contain new features and bugfixes. Or they may not even compile # at all... # #USE_BUSYBOX_SNAPSHOT:= USE_BUSYBOX_SNAPSHOT:=snapshot #USE_BUSYBOX_SNAPSHOT:=20040807 # Enable large file (files > 2 GB) support BUILD_WITH_LARGEFILE:=true # Command used to download source code WGET:=wget --passive-ftp # Optimize toolchain for which type of CPU? OPTIMIZE_FOR_CPU=$(ARCH) #OPTIMIZE_FOR_CPU=i686 # Note... gcc 2.95 does not seem to like anything higher than i586. #OPTIMIZE_FOR_CPU=i586 #OPTIMIZE_FOR_CPU=whatever # Might be worth experimenting with for gcc 3.4.x. GCC_WITH_CPU:= GCC_WITH_ARCH:= GCC_WITH_TUNE:= #GCC_WITH_CPU:=--with-cpu= #GCC_WITH_ARCH:=--with-arch= #GCC_WITH_TUNE:=--with-tune= # Soft floating point options. # Notes: # Currently builds with gcc 3.3 for arm, mips, mipsel, powerpc. # (i386 support will be added back in at some point.) # Only tested with multilib enabled. # For i386, long double is the same as double (64 bits). While this # is unusual for x86, it seemed the best approach considering the # limitations in the gcc floating point emulation library. # For arm, soft float uses the usual libfloat routines. # Custom specs files are used to set the default gcc mode to soft float # as a convenience, since you shouldn't link hard and soft float # together. In fact, arm won't even let you. # (Un)comment the appropriate line below. #SOFT_FLOAT:=true SOFT_FLOAT:=false TARGET_OPTIMIZATION=-Os TARGET_DEBUGGING= #-g # Currently the unwind stuff seems to work for staticly linked apps but # not dynamic. So use setjmp/longjmp exceptions by default. GCC_USE_SJLJ_EXCEPTIONS:=--enable-sjlj-exceptions #GCC_USE_SJLJ_EXCEPTIONS:= # Any additional gcc options you may want to include.... EXTRA_GCC_CONFIG_OPTIONS:= # Enable the following if you want locale/gettext/i18n support. # NOTE! Currently the pregnerated locale stuff only works for x86! #ENABLE_LOCALE:=true ENABLE_LOCALE:=false # If you want multilib enabled, enable this... MULTILIB:=--enable-multilib # Build/install c++ compiler and libstdc++? INSTALL_LIBSTDCPP:=true # Build/install java compiler and libgcj? (requires c++) # WARNING!!! DOES NOT BUILD FOR TARGET WITHOUT INTERVENTION!!! mjn3 #INSTALL_LIBGCJ:=true INSTALL_LIBGCJ:=false # For SMP machines some stuff can be run in parallel #JLEVEL=-j3 ############################################################# # # The list of stuff to build for the target filesystem # ############################################################# TARGETS:=host-sed TARGETS+=uclibc-configured binutils gcc ccache # Are you building your own kernel? Perhaps you have a kernel # you have already configured and you want to use that? The # default is to just use a set of known working kernel headers. # Unless you want to build a kernel, I recommend just using # that... TARGETS+=kernel-headers #TARGETS+=linux #TARGETS+=system-linux # The default minimal set TARGETS+=busybox #tinylogin # Openssh... #TARGETS+=zlib openssl openssh # Dropbear sshd is much smaller than openssl + openssh #TARGETS+=dropbear_sshd # Everything needed to build a full uClibc development system! #TARGETS+=coreutils findutils bash make diffutils patch sed #TARGETS+=ed flex bison file gawk tar grep bzip2 #If you want a development system, you probably want gcc built # with uClibc so it can run within your dev system... #TARGETS+=gcc_target ccache_target # Of course, if you are installing a development system, you # may want some header files so you can compile stuff.... #TARGETS+=ncurses-headers zlib-headers openssl-headers # More development system stuff for those that want it #TARGETS+=m4 autoconf automake libtool # Some nice debugging tools #TARGETS+=gdb strace ltrace # The Valgrind debugger (x86 only) #TARGETS+=valgrind # Some stuff for access points and firewalls #TARGETS+=iptables hostap wtools dhcp_relay bridge #TARGETS+=iproute2 netsnmp # Run customize.mk at the very end to add your own special config. # This is useful for making your own distro within the buildroot # process. # TARGETS+=customize ############################################################# # # Pick your root filesystem type. # ############################################################# #TARGETS+=ext2root # Must mount cramfs with 'ramdisk_blocksize=4096' #TARGETS+=cramfsroot # You may need to edit make/jffs2root.mk to change target # endian-ness or similar, but this is sufficient for most # things as-is... #TARGETS+=jffs2root ############################################################# # # You should probably leave this stuff alone unless you know # what you are doing. # ############################################################# ifeq ($(SOFT_FLOAT),true) # gcc 3.4.x soft float configuration is different than previous versions. ifeq ($(findstring 3.4.,$(GCC_VERSION)),3.4.) SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft else SOFT_FLOAT_CONFIG_OPTION:=--without-float endif TARGET_SOFT_FLOAT:=-msoft-float ARCH_FPU_SUFFIX:=_nofpu else SOFT_FLOAT_CONFIG_OPTION:= TARGET_SOFT_FLOAT:= ARCH_FPU_SUFFIX:= endif ifeq ($(INSTALL_LIBGCJ),true) INSTALL_LIBSTDCPP:=true endif # WARNING -- uClibc currently disables large file support on cris. ifeq ("$(strip $(ARCH))","cris") BUILD_WITH_LARGEFILE:=false endif ifneq ($(BUILD_WITH_LARGEFILE),true) DISABLE_LARGEFILE= --disable-largefile endif TARGET_CFLAGS=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING) HOSTCC:=gcc BASE_DIR:=${shell pwd} SOURCE_DIR:=$(BASE_DIR)/sources DL_DIR:=$(SOURCE_DIR)/dl PATCH_DIR=$(SOURCE_DIR)/patches BUILD_DIR:=$(BASE_DIR)/build_$(ARCH)$(ARCH_FPU_SUFFIX) TARGET_DIR:=$(BUILD_DIR)/root STAGING_DIR=$(BUILD_DIR)/staging_dir TOOL_BUILD_DIR=$(BASE_DIR)/toolchain_build_$(ARCH)$(ARCH_FPU_SUFFIX) TARGET_PATH=$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin IMAGE:=$(BASE_DIR)/root_fs_$(ARCH)$(ARCH_FPU_SUFFIX) REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux KERNEL_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc- TARGET_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc- TARGET_CC=$(TARGET_CROSS)gcc STRIP=$(TARGET_CROSS)strip --remove-section=.comment --remove-section=.note HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \ -e 's/sparc.*/sparc/' \ -e 's/arm.*/arm/g' \ -e 's/m68k.*/m68k/' \ -e 's/ppc/powerpc/g' \ -e 's/v850.*/v850/g' \ -e 's/sh[234]/sh/' \ -e 's/mips-.*/mips/' \ -e 's/mipsel-.*/mipsel/' \ -e 's/cris.*/cris/' \ -e 's/i[3-9]86/i386/' \ ) GNU_HOST_NAME:=$(HOST_ARCH)-pc-linux-gnu TARGET_CONFIGURE_OPTS=PATH=$(TARGET_PATH) \ AR=$(TARGET_CROSS)ar \ AS=$(TARGET_CROSS)as \ LD=$(TARGET_CROSS)ld \ NM=$(TARGET_CROSS)nm \ CC=$(TARGET_CROSS)gcc \ GCC=$(TARGET_CROSS)gcc \ CXX=$(TARGET_CROSS)g++ \ RANLIB=$(TARGET_CROSS)ranlib ifeq ($(ENABLE_LOCALE),true) DISABLE_NLS:= else DISABLE_NLS:=--disable-nls endif all: world TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS)) TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS)) TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS)) world: $(DL_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) $(TARGETS) .PHONY: all world clean dirclean distclean source $(TARGETS) \ $(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) include make/*.mk ############################################################# # # staging and target directories do NOT list these as # dependancies anywhere else # ############################################################# $(DL_DIR): mkdir $(DL_DIR) $(BUILD_DIR): mkdir $(BUILD_DIR) $(TOOL_BUILD_DIR): mkdir $(TOOL_BUILD_DIR) $(STAGING_DIR): rm -rf $(STAGING_DIR) mkdir -p $(STAGING_DIR)/lib mkdir -p $(STAGING_DIR)/include mkdir -p $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME) ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib $(TARGET_DIR): rm -rf $(TARGET_DIR) zcat $(SOURCE_DIR)/skel.tar.gz | tar -C $(BUILD_DIR) -xf - cp -a $(SOURCE_DIR)/target_skeleton/* $(TARGET_DIR)/ -find $(TARGET_DIR) -type d -name CVS -exec rm -rf {} \; > /dev/null 2>&1 source: $(TARGETS_SOURCE) ############################################################# # # Cleanup and misc junk # ############################################################# clean: $(TARGETS_CLEAN) rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE) dirclean: $(TARGETS_DIRCLEAN) rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE) distclean: rm -rf $(DL_DIR) $(BUILD_DIR) $(LINUX_KERNEL) $(IMAGE) sourceball: rm -rf $(BUILD_DIR) set -e; \ cd ..; \ rm -f buildroot.tar.bz2; \ tar -cvf buildroot.tar buildroot; \ bzip2 -9 buildroot.tar; \