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authorJeremy Kerr <​jk@ozlabs.org>2008-04-12 23:14:42 +0000
committerJeremy Kerr <​jk@ozlabs.org>2008-04-12 23:14:42 +0000
commit077d84f543b36d27d1d8aa5f759d6eed6c6a65b2 (patch)
tree604123c256bc02ff9c8c18cf4354ee780d48894f /toolchain/Config.in
parente2e1b51b4182925e736a32bfd3072d689e99decd (diff)
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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.in29
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"