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| author | Jeremy Kerr <jk@ozlabs.org> | 2008-04-12 23:14:42 +0000 |
|---|---|---|
| committer | Jeremy Kerr <jk@ozlabs.org> | 2008-04-12 23:14:42 +0000 |
| commit | 077d84f543b36d27d1d8aa5f759d6eed6c6a65b2 (patch) | |
| tree | 604123c256bc02ff9c8c18cf4354ee780d48894f /toolchain/Config.in | |
| parent | e2e1b51b4182925e736a32bfd3072d689e99decd (diff) | |
| download | upstream-077d84f543b36d27d1d8aa5f759d6eed6c6a65b2.tar.gz upstream-077d84f543b36d27d1d8aa5f759d6eed6c6a65b2.tar.bz2 upstream-077d84f543b36d27d1d8aa5f759d6eed6c6a65b2.zip | |
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
Diffstat (limited to 'toolchain/Config.in')
| -rw-r--r-- | toolchain/Config.in | 29 |
1 files changed, 29 insertions, 0 deletions
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" |