From 077d84f543b36d27d1d8aa5f759d6eed6c6a65b2 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr <​jk@ozlabs.org> Date: Sat, 12 Apr 2008 23:14:42 +0000 Subject: 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 SVN-Revision: 10802 --- toolchain/Config.in | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'toolchain/Config.in') diff --git a/toolchain/Config.in b/toolchain/Config.in index 192818f942..c4f6e14f57 100644 --- a/toolchain/Config.in +++ b/toolchain/Config.in @@ -10,6 +10,35 @@ menuconfig TOOLCHAINOPTS bool "Toolchain Options" if DEVEL depends !NATIVE_TOOLCHAIN +menuconfig EXTRA_TARGET_ARCH + bool + prompt "Enable an extra toolchain target architecture" if TOOLCHAINOPTS + default n + help + Some builds may require a 'biarch' toolchain. This option + allows you to specify an additional target arch. + + Most people will answer N here. + + config EXTRA_TARGET_ARCH_NAME + string + prompt "Extra architecture name" if EXTRA_TARGET_ARCH + help + Specify the cpu name (eg powerpc64 or x86_64) of the + additional target architecture. + + config EXTRA_TARGET_ARCH_OPTS + string + prompt "Extra architecture compiler options" if EXTRA_TARGET_ARCH + help + If you're specifying an addition target architecture, + you'll probably need to also provide options to make + the compiler use this alternate arch. + + For example, if you're building a compiler that can build + both powerpc and powerpc64 binaries, you'll need to + specify -m64 here. + source "toolchain/binutils/Config.in" source "toolchain/gcc/Config.in" source "toolchain/uClibc/Config.in" -- cgit v1.2.3