openwrt/toolchain/gcc
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
..
files provide a cleaner way to specify a biarch toolchain build 2008-04-12 23:14:42 +00:00
patches fixup ARM EABI on GCC 4.1.2 2008-02-17 15:37:58 +00:00
Config.in remove the "depends BROKEN" for eabi 2008-03-07 10:16:37 +00:00
Config.version use GCC 4.2.3 by default for AVR32 2008-02-07 20:21:18 +00:00
Makefile provide a cleaner way to specify a biarch toolchain build 2008-04-12 23:14:42 +00:00