Hi,
I saw that you derive $target_cpu from arch as I know it from your older
internal and external patches.
Now you added the configure command line option --target-cpu to allow to
overwrite that $arch derived target.
a) do you have some use cases in mind where you need an overwritten target
instead the one derived from $arch ?
b) if it is needed, please add a small description to the usage() output
Kind regards,
Christian Ehrhardt
Jerone Young wrote:
> This patch adds cross compile capability to the top level configure
> script.
>
> Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
>
>
> ------------------------------------------------------------------------
>
> diff -r f48e521e0add configure
> --- a/configure Wed Oct 03 21:00:03 2007 -0500
> +++ b/configure Thu Oct 04 14:59:16 2007 -0500
> @@ -5,13 +5,17 @@ want_module=1
> want_module=1
> qemu_cc=$(ls /usr/bin/gcc3* /usr/bin/gcc-3* 2>/dev/null | tail -n1)
> disable_gcc_check=
> +cross_prefix=
> +arch=`uname -m`
> +target_cpu=
>
> usage() {
> cat <<-EOF
> Usage: $0 [options]
>
> Options include:
> -
> + --arch=ARCH architecture to compile for ($arch)
> + --cross-prefix=PREFIX prefix for cross compiler
> --prefix=PREFIX where to install things ($prefix)
> --with-patched-kernel don't use external module
> --kerneldir=DIR kernel build directory ($kerneldir)
> @@ -53,6 +57,15 @@ while [[ "$1" = -* ]]; do
> --disable-gcc-check)
> disable_gcc_check=1
> ;;
> + --arch)
> + arch="$arg"
> + ;;
> + --cross-prefix)
> + cross_prefix="$arg"
> + ;;
> + --target-cpu)
> + target_cpu="$arg"
> + ;;
> --help)
> usage
> ;;
> @@ -62,7 +75,7 @@ while [[ "$1" = -* ]]; do
> esac
> done
>
> -if [[ -z "$qemu_cc" ]]; then
> +if [[ -z "$qemu_cc" ]] && [[ -z "$cross_prefix" ]]; then
> echo "$0: cannot locate gcc 3.x. please install it or specify with
> --qemu-cc"
> exit 1
> fi
> @@ -72,29 +85,48 @@ if (( want_module )); then
> libkvm_kerneldir=$(readlink -f kernel)
> fi
>
> -target_cpu() {
> - if [[ $(uname -m) = i?86 ]]; then
> - echo x86_64
> - else
> - uname -m
> +#if arch is an x86 arch set to i386
> +if [[ $arch = i?86 ]]; then
> + arch="i386"
> +fi
> +
> +#see if using a cross compiler or not
> +compiler=
> +qemu_opts=
> +user_opts=
> +if [[ -z $cross_prefix ]]; then
> + qemu_opts+=" --cc=$qemu_cc"
> + user_opts+=" --cc=$qemu_cc"
> +else
> + qemu_opts+=" --cross-prefix=$cross_prefix"
> + user_opts+=" --cross-prefix=$cross_prefix"
> +fi
> +
> +#set parameters compiling
> +if [ "$arch" = "i386" -o "$arch" = "x86_64" ]; then
> + if [[ -z $target_cpu ]]; then
> + target_cpu="x86_64"
> fi
> -}
> + qemu_opts+=" --enable-alsa"
> +fi
>
> -(cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir")
> -(cd qemu; ./configure --target-list=$(target_cpu)-softmmu --cc="$qemu_cc" \
> +#configure user dir
> +(cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir" \
> + $user_opts --arch="$arch")
> +(cd qemu; ./configure --target-list=$target_cpu-softmmu \
> --disable-kqemu --extra-cflags="-I $PWD/../user" \
> --extra-ldflags="-L $PWD/../user" \
> --enable-kvm --kernel-path="$libkvm_kerneldir" \
> - --enable-alsa \
> ${disable_gcc_check:+"--disable-gcc-check"} \
> - --prefix="$prefix"
> + --prefix="$prefix" \
> + $qemu_opts --cpu="$arch"
> )
>
>
> -
> cat <<EOF > config.mak
> +ARCH=$arch
> PREFIX=$prefix
> KERNELDIR=$kerneldir
> WANT_MODULE=$want_module
> +CC=$cross_prefix$qemu_cc
> EOF
> -
>
>
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--
Grüsse / regards,
Christian Ehrhardt
IBM Linux Technology Center, Open Virtualization
+49 7031/16-3385
[EMAIL PROTECTED]
[EMAIL PROTECTED]
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