[Openembedded-users] Prebuilt toolchain in OE

Wed May 6 11:04:09 UTC 2009

HI All,
               Recently I started using OE for mips. I have the prebuilt
toolchain which I am using  for some time. I want to use the prebuilt
toolchain with the OE. I added the option required for using prebuilt
toolchain by refering the OE tutorial. My local.config file is  as below.
But still it is trying to compile the binutils, gcc and glibc. Please help
me to fix this problem.

#
# OpenEmbedded local configuration file (sample)
#
# Please visit the Wiki at http://openembedded.org/ for more info.
#
#
# Be SURE to read this file in its entirety and the GettingStarted page on
the
# wiki before proceeding.
#
# Once you have done that, remove the line at the end of this
# file and build away.
#
# WARNING: lines starting with a space (' ') will result in parse failures.
# Remove '# ' from commented lines to activate them.
#
# NOTE: Do NOT use $HOME in your paths, BitBake does NOT expand ~ for you.
If you
# must have paths relative to your homedir use ${HOME} (note the {}'s there
# you MUST have them for the variable expansion to be done by BitBake).
Your
# paths should all be absolute paths (They should all start with a / after
# expansion.  Stuff like starting with ${HOME} or ${TOPDIR} is ok).

# Use this to specify where BitBake should place the downloaded sources into
DL_DIR = "${HOME}/work/oe/sources"

# Delete the line below. Then specify which .bb files to consider for
# your build. Typically this will be something like
BBFILES := "/home/nikesh/work/oe/openembedded/recipes/*/*.bb"
#BBFILES := "${@bb.fatal('Edit your conf/local.conf: BBFILES')}"

# Use the BBMASK below to instruct BitBake to _NOT_ consider some .bb files
# This is a regulary expression, so be sure to get your parenthesis
balanced.
BBMASK = ""

# Uncomment this if you're building for an arch that uses emulated locale
# generation under qemu (mainly arm glibc) and have an external gcc 3.x
compiler
# that OE recognises. This will mean the gcc-native build is skipped,
speeding
# builds up.
ASSUME_PROVIDED += "gcc3-native"

# Uncomment this if you are building Linux 2.4 Embedix kernels.
# i.e. openzaurus-sa-2.4.18 and openzaurus-pxa-2.4.18 - and don't forget
# to rename the binaries as instructed in the Wiki.
# Most users do not need this anymore thankfully!
# ASSUME_PROVIDED += "virtual/arm-linux-gcc-2.95"

# Select between multiple alternative providers, if more than one is
eligible.
#PREFERRED_PROVIDERS = "virtual/qte:qte virtual/libqpe:libqpe-opie"
#PREFERRED_PROVIDERS += " virtual/libsdl:libsdl-x11"
#PREFERRED_PROVIDERS += "
virtual/${TARGET_PREFIX}gcc-initial:gcc-cross-initial"
#PREFERRED_PROVIDERS += "
virtual/${TARGET_PREFIX}gcc-intermediate:gcc-cross-intermediate"
#PREFERRED_PROVIDERS += " virtual/${TARGET_PREFIX}gcc:gcc-cross"
#PREFERRED_PROVIDERS += " virtual/${TARGET_PREFIX}g++:gcc-cross"

# Uncomment this if you want to use a prebuilt toolchain. You will need to
# provide packages for toolchain and additional libraries yourself. You also
# have to set PATH in your environment to make sure BitBake finds additional
binaries.

export CC = "${CCACHE}mipsel-linux-gcc-4.2.4 ${HOST_CC_ARCH}"
export CXX = "${CCACHE}mipsel-linux-g++ ${HOST_CC_ARCH}"
export CPP = "mipsel-linux-cpp-4.2.4 -E"
export LD = "mipsel-linux-ld"
export AR = "mipsel-linux-ar"
export AS = "mipsel-linux-as"
export RANLIB = "mipsel-linux-ranlib"
export STRIP = "mipsel-linux-strip"

TARGET_CPPFLAGS_append="
-I/opt/ea-linux/rmi_dbau1250/mipsel-linux/usr/include/ "
TARGET_LDFLAGS_prepend=" -L/opt/ea-linux/rmi_dbau1250/mipsel-linux/usr/lib
-Wl,-rpath-link "

TARGET_SYS = "mipsel-linux"
TARGET_PREFIX = "mipsel-linux-"
ASSUME_PROVIDED += "virtual/${TARGET_PREFIX}gcc virtual/libc"
ASSUME_PROVIDED += "binutils-cross gcc-cross-initial gcc-cross"
ASSUME_PROVIDED += "virtual/mipsel-linux-libc-for-gcc
virtual/mipsel-linux-binutils"
ASSUME_PROVIDED += "virtual/mipsel-linux-gcc-initial"
ASSUME_PROVIDED += "virtual/libc linux-libc-headers virtual/glibc glibc"
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}g++ "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}ld "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}cpp-4.2.4 "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}strip "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}as "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}ar "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}ranlib "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}objdump "
#ASSUME_PROVIDED += " virtual/${TARGET_PREFIX}objcopy "
#ASSUME_PROVIDED += " virtual/libgtk-directfb "

# Uncomment this to specify where BitBake should create its temporary files.
# Note that a full build of everything in OpenEmbedded will take GigaBytes
of hard
# disk space, so make sure to free enough space. The default TMPDIR is
# <build directory>/tmp
# Don't use symlinks in in the path to avoid problems
# TMPDIR = /usr/local/projects/oetmp

# Uncomment this to specify a machine to build for. See the conf directory
# for machines currently known to OpenEmbedded. This will automatically take
care
# of TARGET_ARCH
MACHINE = "db1200"

# Use this to specify the target architecture. Note that this is only
# needed when building for a machine not known to OpenEmbedded. Better use
# the MACHINE attribute (see above)
#TARGET_ARCH = "mips"

# Use this to specify the target operating system.  The default is "linux",
# for a normal linux system with glibc. Set this to "linux-uclibc" if you
want
# to build a uclibc based system.
# Normally the DISTRO of your choosing will take care of this
TARGET_OS = "linux"
# TARGET_OS = "linux-uclibc"

# Uncomment this to select a distribution policy. See the conf directory
# for distributions currently known to OpenEmbedded.
# Although it no longer contain version number in the (file-)name
# openzaurus-unstable is a so called "versioned"  distro, i.e. they
# explicitely select specific versions of various packages.
# Stay away from unversioned distros unless you really know what you are
doing
DISTRO = "angstrom-2008.1"
#DISTRO = "minimal"

# So far, angstrom.conf sets ENABLE_BINARY_LOCALE_GENERATION
# to generate binary locale packages at build time using qemu-native and
# thereby guarantee i18n support on all devices. If your build breaks on
# qemu-native consider disabling ENABLE_BINARY_LOCALE_GENERATION (note that
# this breaks i18n on devices with less than 128MB RAM) or installing
# a working third-party qemu (e.g. provided by your distribution) and
# adding qemu-native to ASSUME_PROVIDED. Caveat emptor, since third-party
# qemus lack patches needed to work with various OE targets.
# ENABLE_BINARY_LOCALE_GENERATION = "0"
# ASSUME_PROVIDED += "qemu-native"

# If ENABLE_BINARY_LOCALE_GENERATION is set to "1", you can limit locales
# generated to the list provided by GLIBC_GENERATE_LOCALES. This is huge
# time-savior for developmental builds. Format: list of locale.encoding
pairs
# with spaces as separators.
# GLIBC_GENERATE_LOCALES = "en_GB.UTF-8 de_DE.UTF-8"

# Uncomment this to select a particular major kernel version if the MACHINE
setting
# supports more than one major kernel version. Currently this is suported by
the
# following MACHINE types: poodle, tosa and simpad.
# MACHINE_KERNEL_VERSION = "2.6"

# Uncomment one of these to build packages during the build process.
# This is done automatically if you set DISTRO (see above)
# INHERIT = "package_ipk"
# INHERIT = "package_tar"

# Add the required image file system types below. Valid are
# jffs2, tar(.gz|bz2), cpio(.gz), cramfs, ext2(.gz), ext3(.gz)
# squashfs, squashfs-lzma
IMAGE_FSTYPES = "tar"

# Uncomment this to disable the parse cache (not recommended).
# CACHE = ""

# Uncomment this if you want BitBake to emit debugging output
# BBDEBUG = "yes"

# Uncomment these two if you want BitBake to build images useful for
debugging.
# Note that INHIBIT_PACKAGE_STRIP needs a package format to be defined.
# Also note that OE now produces -dbg packages which contain debugging
symbols.
# DEBUG_BUILD = "1"
# INHIBIT_PACKAGE_STRIP = "1"

# Uncomment these to build a package such that you can use gprof to profile
it.
# NOTE: This will only work with 'linux' targets, not
# 'linux-uclibc', as uClibc doesn't provide the necessary
# object files.  Also, don't build glibc itself with these
# flags, or it'll fail to build.
#
# PROFILE_OPTIMIZATION = "-pg"
# SELECTED_OPTIMIZATION = "${PROFILE_OPTIMIZATION}"
# LDFLAGS =+ "-pg"

# Uncomment this to enable parallel make.
# This allows make to spawn mutliple processes to take advantage of multiple

# processors. Useful on SMP machines. This may break some packages - we're
# in the process of marking these so let us know if you find any.
# PARALLEL_MAKE = "-j 4"

# Uncomment this if you want BitBake to emit the log if a build fails.
BBINCLUDELOGS = "yes"

# Specifies a location to search for pre-generated tarballs when fetching
# a cvs:// URI. Outcomment this, if you always want to pull directly from
CVS.
#CVS_TARBALL_STASH = ""

# Uncomment this if you want to install shared libraries directly under
their SONAME,
# rather than installing as the full version and symlinking to the SONAME.
# PACKAGE_SNAP_LIB_SYMLINKS = "1"

# EDIT THIS FILE and then remove the line below before using!
#REMOVE_THIS_LINE:="${@bb.fatal('Read the comments in your
conf/local.conf')}"
#PREFERRED_VERSION_glib = "2.19.0"
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