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Jeremy Kerr 077d84f543 provide a cleaner way to specify a biarch toolchain build 
Currently, to build a biarch toolchain, we need to explicitly give
options to the binutils and gcc configure commands:

CONFIG_EXTRA_BINUTILS_CONFIG_OPTIONS="--enable-targets=powerpc64-linux-uclibc"
CONFIG_EXTRA_GCC_CONFIG_OPTIONS="--enable-biarch --enable-targets=powerpc64-linux-uclibc"

This change replaces the command line options with an 'extra arch'
configure option:

CONFIG_EXTRA_TARGET_ARCH=y
CONFIG_EXTRA_TARGET_ARCH_NAME="powerpc64"

And a way to invoke this extra arch on the compiler command-line:

CONFIG_EXTRA_TARGET_ARCH_OPTS="-m64"

In this case, this results in an extra compiler:
 'powerpc64-linux-uclibc-gcc', which invokes
 'powerpc-linux-uclibc-gcc -m64'

This is a more standard way of building biarch toolchains, and allows
the packages to not have to care about how to invoke the 64-bit
compiler.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

SVN-Revision: 10802
2008-04-12 23:14:42 +00:00
docs Fix docs build from a clean checkout, closes #2975 2008-01-07 07:16:00 +00:00
include Clean files in scripts/config (#3011) 2008-04-03 19:08:59 +00:00
package fix build on linux >= 2.6.23 2008-04-12 22:04:09 +00:00
scripts install build-depends packages as well 2008-04-12 09:37:44 +00:00
target add missing SSB config symbols 2008-04-12 20:26:41 +00:00
toolchain provide a cleaner way to specify a biarch toolchain build 2008-04-12 23:14:42 +00:00
tools Create a dummy sit package for 2.4 kernelsq 2008-03-27 15:44:14 +00:00
.gitignore add package/openwrt-packages to .gitignore 2008-02-09 16:01:34 +00:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in add feature flag for the cpio.gz support 2008-01-29 13:56:43 +00:00
feeds.conf Switched xwrt url in feeds.conf (berlios http falls over occasionally) 2008-03-02 22:07:46 +00:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile fix package/symlinks target, will call scripts/feeds update / install introduce new package/symlinks-install and package/symlinks-clean targets - package/symlink-install will re-create the index files and the symlinks for all ./feeds (no update from repositories is performed) - package/symlink-clean will delete all installed symlinks (keeping the ./feeds untouched) 2008-03-20 17:08:24 +00:00
README add information about the tex4ht requirement for the docs 2007-02-26 01:06:41 +00:00
rules.mk revert ARM to oabi by default, add some eabi patches for fixing up the toolchain, which unfortunately break eabi userland, but are IMHO a necessary basis for further eabi fixes 2008-02-14 14:31:31 +00:00

README 

This is the buildsystem for the OpenWrt Linux distribution

Please use "make menuconfig" to configure your appreciated
configuration for the toolchain and firmware.

You need to have installed gcc, binutils, patch, bzip2, flex, bison,
make, gettext, pkg-config, unzip, libz-dev and libc headers.

Simply running 'make' will build your firmware.
It will download all sources, build the cross-compile toolchain, 
the kernel and all choosen applications.

You can use scripts/flash.sh for remotely updating your embedded system
via tftp.

The OpenWrt system is documented in docs/. You will need a LaTeX distribution
and the tex4ht package to build the documentation. Type make -C docs/ to build it.

Building your own firmware you need to have access to a Linux, BSD or MacOSX system.
Cygwin will not be supported because of the lack of case sensitiveness.

Sunshine!
	Your OpenWrt Project
	http://openwrt.org