9168e83809
issues for applications, we also create staging_dir/bin/<arch>-linux-* symlinks which allows us to configure most apps with target=<arch>-linux. gcc 3.3.2 libstdc++ now correctly identifies uclibc locale support. There are still some issues (mainly related to wide char time strings and wcsftime) to be addressed, but those are on hold until the uClibc locale internals are reworked once again. With the new stuff, we can also build gcc 2.95 and STLport again, although the native gcc build for the target is failing. Archs supported (some archs not yet tested): 2.95 - i386, arm, mips*, powerpc. 3.3.2 - Hopefull all for which uClibc has shared lib support.
371 lines
11 KiB
Makefile
371 lines
11 KiB
Makefile
# Makefile for a simple busybox/uClibc root filesystem
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#
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# Copyright (C) 2001-2003 Erik Andersen <andersen@codepoet.org>
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# Copyright (C) 2002 by Tim Riker <Tim@Rikers.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Library General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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#
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# You should have received a copy of the GNU Library General Public
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# License along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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# USA
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#############################################################
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#
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# EDIT this stuff to suit your system and preferences
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#
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# Use := when possible to get precomputation, thereby
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# speeding up the build process.
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#
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#############################################################
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# What sortof target system shall we compile this for?
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ARCH:=i386
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#ARCH:=arm
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#ARCH:=mips
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#ARCH:=mipsel
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# Possible issues remaining with powerpc and soft float.
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#ARCH:=powerpc
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#ARCH:=sh4
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# Busybox link failing due to needing libgcc functions that are statics.
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#ARCH:=cris
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# The following currently fail to build since no shared lib support.
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#ARCH:=sh64
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#ARCH:=m68k
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#ARCH:=v850
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#ARCH:=sparc
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#ARCH:=whatever
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# Enable this if you want to use an <arch>-linux-uclibc-* toolchain.
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# Note that, to avoid configure problems with apps that don't support
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# this tupple, we also put <arch>-linux-* symlinks in staging_dir/bin.
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# WARNING -- This does not yet support soft-float builds.
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USE_LINUX_UCLIBC:=true
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#USE_LINUX_UCLIBC:=false
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# If you are building a native gcc toolchain, do you want to
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# build the old gcc-2.95 based toolchain, or would you prefer
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# a nice and shiny new gcc-3.3.2 toolchain?
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# WARNING -- 2.95 currently does not build unless USE_LINUX_UCLIBC:=true.
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# WARNING -- 2.95 currently only builds for i386, arm, mips*, and powerpc.
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# WARNING -- 2.95 does not currently build natively for the target.
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#GCC_2_95_TOOLCHAIN:=true
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GCC_2_95_TOOLCHAIN:=false
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# Enable this to use the uClibc daily snapshot instead of a released
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# version. Daily snapshots may contain new features and bugfixes. Or
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# they may not even compile at all, depending on what Erik is doing...
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USE_UCLIBC_SNAPSHOT:=true
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# Enable this to use the busybox daily snapshot instead of a released
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# version. Daily snapshots may contain new features and bugfixes. Or
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# they may not even compile at all....
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USE_BUSYBOX_SNAPSHOT:=true
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# Enable large file (files > 2 GB) support
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BUILD_WITH_LARGEFILE:=true
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# Command used to download source code
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WGET:=wget --passive-ftp
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# Optimize toolchain for which type of CPU?
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ifeq ($(USE_LINUX_UCLIBC),true)
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OPTIMIZE_FOR_CPU=$(ARCH)
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#OPTIMIZE_FOR_CPU=i686
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#OPTIMIZE_FOR_CPU=whatever
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else
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# WARNING!!! CURRENTLY BROKEN!!! LEAVE IT AS $(ARCH)!!!
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OPTIMIZE_FOR_CPU=$(ARCH)
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# WARNING!!! CURRENTLY BROKEN!!! LEAVE IT AS $(ARCH)!!!
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endif
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# Soft floating point options.
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# Notes:
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# Currently builds with gcc 3.3 for i386, arm, mips, mipsel.
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# Only tested with multilib enabled.
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# For i386, long double is the same as double (64 bits). While this
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# is unusual for x86, it seemed the best approach considering the
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# limitations in the gcc floating point emulation library.
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# For arm, soft float uses the usual libfloat routines.
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# The uClibc built will support _only_ applications compiled with the
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# -msoft-float flag. To avoid CFLAGS problems, you may want to use
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# scripts similar to those in the build*/staging_dir/bin directory.
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# (Un)comment the appropriate line below.
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#SOFT_FLOAT:=true
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SOFT_FLOAT:=false
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TARGET_OPTIMIZATION=-Os
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TARGET_DEBUGGING= #-g
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# Any additional gcc options you may want to include....
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EXTRA_GCC_CONFIG_OPTIONS:=
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# Enable the following if you want locale/gettext/i18n support.
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# NOTE! Currently the pregnerated locale stuff only works for x86!
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#ENABLE_LOCALE:=true
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ENABLE_LOCALE:=false
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# If you want multilib enabled, enable this...
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MULTILIB:=--enable-multilib
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# Build/install c++ compiler and libstdc++?
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INSTALL_LIBSTDCPP:=true
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# For SMP machines some stuff can be run in parallel
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#JLEVEL=-j3
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#############################################################
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#
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# The list of stuff to build for the target filesystem
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#
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#############################################################
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TARGETS:=host-sed
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ifeq ($(GCC_2_95_TOOLCHAIN),true)
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TARGETS+=uclibc-configured binutils gcc2_95
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else
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TARGETS+=uclibc-configured binutils gcc3_3
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endif
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# Do you want user mode Linux (x86 only), or are you building a
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# your own kernel that will run on its own? Perhaps you have a
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# kernel you have already configured and you want to use that?
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# The default is to just use a set of known working kernel
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# headers. Unless you want to build a kernel, I recommend just
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# using that...
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TARGETS+=kernel-headers
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#TARGETS+=linux
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#TARGETS+=user-mode-linux
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#TARGETS+=system-linux
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# The default minimal set
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TARGETS+=busybox tinylogin
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# Openssh...
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#TARGETS+=zlib openssl openssh
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# Dropbear sshd is much smaller than openssl + openssh
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#TARGETS+=dropbear_sshd
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# Everything needed to build a full uClibc development system!
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#TARGETS+=coreutils findutils bash make diffutils patch sed
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#TARGETS+=ed flex bison file gawk tar grep bzip2
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#If you want a development system, you probably want gcc built
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# with uClibc so it can run within your dev system...
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#TARGETS+=gcc2_95_target ccache_target
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#TARGETS+=gcc3_3_target ccache_target
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# Of course, if you are installing a development system, you
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# may want some header files so you can compile stuff....
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#TARGETS+=ncurses-headers zlib-headers openssl-headers
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# More development system stuff for those that want it
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#TARGETS+=m4 autoconf automake libtool
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# Perl
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#TARGETS+=perl
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# Some nice debugging tools
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#TARGETS+=gdb strace
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# The Valgrind debugger (x86 only)
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#TARGETS+=valgrind
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# Some stuff for access points and firewalls
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#TARGETS+=iptables hostap wtools dhcp_relay bridge
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#TARGETS+=iproute2 netsnmp
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# Run customize.mk at the very end to add your own special config.
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# This is useful for making your own distro within the buildroot
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# process.
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# TARGETS+=customize
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#############################################################
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#
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# Pick your root filesystem type.
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#
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#############################################################
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TARGETS+=ext2root
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# Must mount cramfs with 'ramdisk_blocksize=4096'
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#TARGETS+=cramfsroot
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# You may need to edit make/jffs2root.mk to change target
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# endian-ness or similar, but this is sufficient for most
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# things as-is...
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#TARGETS+=jffs2root
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#############################################################
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#
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# You should probably leave this stuff alone unless you know
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# what you are doing.
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#
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#############################################################
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# The new stuff doesn't support soft float yet.
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ifeq ($(USE_LINUX_UCLIBC),true)
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SOFT_FLOAT:=false
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endif
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ifeq ($(SOFT_FLOAT),true)
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SOFT_FLOAT_CONFIG_OPTION:=--without-float
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TARGET_SOFT_FLOAT:=-msoft-float
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ARCH_FPU_SUFFIX:=_nofpu
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else
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SOFT_FLOAT_CONFIG_OPTION:=
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TARGET_SOFT_FLOAT:=
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ARCH_FPU_SUFFIX:=
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endif
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# The new stuff auto-detects approrpriate locale support.
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# So only set this for the old 'hacked' toolchain.
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ifneq ($(USE_LINUX_UCLIBC),true)
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ifeq ($(ENABLE_LOCALE),true)
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EXTRA_GCC_CONFIG_OPTIONS += --enable-clocale=gnu
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endif
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endif
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# WARNING -- uClibc currently disables large file support on cris.
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ifeq ("$(strip $(ARCH))","cris")
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BUILD_WITH_LARGEFILE:=false
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endif
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ifneq ($(BUILD_WITH_LARGEFILE),true)
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DISABLE_LARGEFILE= --disable-largefile
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endif
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TARGET_CFLAGS=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING) $(TARGET_SOFT_FLOAT)
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HOSTCC:=gcc
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BASE_DIR:=${shell pwd}
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SOURCE_DIR:=$(BASE_DIR)/sources
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DL_DIR:=$(SOURCE_DIR)/dl
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PATCH_DIR=$(SOURCE_DIR)/patches
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BUILD_DIR:=$(BASE_DIR)/build_$(ARCH)$(ARCH_FPU_SUFFIX)
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TARGET_DIR:=$(BUILD_DIR)/root
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STAGING_DIR=$(BUILD_DIR)/staging_dir
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TOOL_BUILD_DIR=$(BASE_DIR)/toolchain_build_$(ARCH)$(ARCH_FPU_SUFFIX)
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TARGET_PATH=$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
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IMAGE:=$(BASE_DIR)/root_fs_$(ARCH)$(ARCH_FPU_SUFFIX)
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ifeq ($(USE_LINUX_UCLIBC),true)
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REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
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GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
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KERNEL_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
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TARGET_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
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else
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REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
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GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
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KERNEL_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-
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TARGET_CROSS=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-
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endif
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TARGET_CC=$(TARGET_CROSS)gcc$(TARGET_SOFT_FLOAT)
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STRIP=$(TARGET_CROSS)strip --remove-section=.comment --remove-section=.note
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HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
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-e 's/sparc.*/sparc/' \
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-e 's/arm.*/arm/g' \
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-e 's/m68k.*/m68k/' \
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-e 's/ppc/powerpc/g' \
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-e 's/v850.*/v850/g' \
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-e 's/sh[234]/sh/' \
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-e 's/mips-.*/mips/' \
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-e 's/mipsel-.*/mipsel/' \
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-e 's/cris.*/cris/' \
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-e 's/i[3-9]86/i386/' \
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)
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GNU_HOST_NAME:=$(HOST_ARCH)-pc-linux-gnu
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TARGET_CONFIGURE_OPTS=PATH=$(TARGET_PATH) \
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AR=$(TARGET_CROSS)ar \
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AS=$(TARGET_CROSS)as \
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LD=$(TARGET_CROSS)ld \
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NM=$(TARGET_CROSS)nm \
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CC=$(TARGET_CROSS)gcc$(TARGET_SOFT_FLOAT) \
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GCC=$(TARGET_CROSS)gcc$(TARGET_SOFT_FLOAT) \
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CXX=$(TARGET_CROSS)g++$(TARGET_SOFT_FLOAT) \
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RANLIB=$(TARGET_CROSS)ranlib
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ifeq ($(ENABLE_LOCALE),true)
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DISABLE_NLS:=
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else
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DISABLE_NLS:=--disable-nls
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endif
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all: world
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TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
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TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS))
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TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))
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world: $(DL_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) $(TARGETS)
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.PHONY: all world clean dirclean distclean source $(TARGETS) \
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$(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE)
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include make/*.mk
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#############################################################
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#
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# staging and target directories do NOT list these as
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# dependancies anywhere else
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#
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#############################################################
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$(DL_DIR):
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mkdir $(DL_DIR)
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$(BUILD_DIR):
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mkdir $(BUILD_DIR)
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$(STAGING_DIR):
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rm -rf $(STAGING_DIR)
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mkdir -p $(STAGING_DIR)/lib
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mkdir -p $(STAGING_DIR)/usr
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ifneq ($(GCC_2_95_TOOLCHAIN),true)
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mkdir -p $(STAGING_DIR)/include
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else
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mkdir -p $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/include
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(cd $(STAGING_DIR); ln -fs $(REAL_GNU_TARGET_NAME)/include)
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endif
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ln -fs ../lib $(STAGING_DIR)/usr/lib
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$(TARGET_DIR):
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rm -rf $(TARGET_DIR)
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zcat $(SOURCE_DIR)/skel.tar.gz | tar -C $(BUILD_DIR) -xf -
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cp -a $(SOURCE_DIR)/target_skeleton/* $(TARGET_DIR)/
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-find $(TARGET_DIR) -type d -name CVS -exec rm -rf {} \; > /dev/null 2>&1
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source: $(TARGETS_SOURCE)
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#############################################################
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#
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# Cleanup and misc junk
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#
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#############################################################
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clean: $(TARGETS_CLEAN)
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rm -rf $(TARGET_DIR) $(STAGING_DIR) $(IMAGE)
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dirclean: $(TARGETS_DIRCLEAN)
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rm -rf $(TARGET_DIR) $(STAGING_DIR) $(IMAGE)
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distclean:
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rm -rf $(DL_DIR) $(BUILD_DIR) $(LINUX_KERNEL) $(IMAGE)
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sourceball:
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rm -rf $(BUILD_DIR)
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set -e; \
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cd ..; \
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rm -f buildroot.tar.bz2; \
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tar -cvf buildroot.tar buildroot; \
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bzip2 -9 buildroot.tar; \
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