From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerone Young Subject: [PATCH] [v4] add cross compile capability to top level configure script Date: Tue, 16 Oct 2007 15:11:34 -0500 Message-ID: <1192565494.6079.28.camel@thinkpad> Reply-To: jyoung5-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-devel Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Based on comments I've added the ability to separately add a compiler for qemu. CFLAGS & LDFLAGS for qemu now have an option. I've also added information back to the help screen. I had not thought much about how the kernel/ directory takes in the config.mak that is created. Currently I am not using the kernel/ directory .. sorry. Everything works for me though compiling on my laptop. Signed-off-by: Jerone Young diff --git a/configure b/configure --- a/configure +++ b/configure @@ -3,32 +3,37 @@ prefix=/usr/local prefix=/usr/local kerneldir=/lib/modules/$(uname -r)/build want_module=1 -qemu_cc=$(ls /usr/bin/gcc3* /usr/bin/gcc-3* 2>/dev/null | tail -n1) +cc=gcc +qemu_cc= +qemu_cflags= +qemu_ldflags= disable_gcc_check= +cross_prefix= +arch=`uname -m` +target_exec= usage() { cat <<-EOF Usage: $0 [options] Options include: - + --arch=ARCH architecture to compile for ($arch) + --cross-prefix=PREFIX prefix for cross compile + --cc=CC specify c compiler to compile + not valid if used with --cross-prefix --prefix=PREFIX where to install things ($prefix) --with-patched-kernel don't use external module --kerneldir=DIR kernel build directory ($kerneldir) - --qemu-cc="$qemu_cc" compiler for qemu (needs gcc3.x) ($qemu_cc) + --qemu-cc=CC override compiler for qemu (must be gcc-3.x) + will override --cc for qemu configuration + not valid if used with --cross-prefix + --qemu-cflags=CFLAGS CFLAGS to add to qemu configuration + --qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration --disable-gcc-check don't insist on gcc-3.x - - this will break running without kvm + CAUTION: this will break running without kvm EOF exit 1 } - - -# prefer gcc if its version is 3.* ( over a compat-gcc ) -# do it before parsing command line arguments to enable the user -# to specify a specific gcc he/she likes. -if gcc -v 2>&1 | grep -q 'gcc *version *3\.[2-4]\.[0-9]'; then - qemu_cc=gcc -fi while [[ "$1" = -* ]]; do opt="$1"; shift @@ -47,12 +52,27 @@ while [[ "$1" = -* ]]; do --with-patched-kernel) want_module= ;; + --cc) + cc="$arg" + ;; --qemu-cc) qemu_cc="$arg" + ;; + --qemu-cflags) + qemu_cflags="$arg" + ;; + --qemu-ldflags) + qemu_ldflags="$arg" ;; --disable-gcc-check) disable_gcc_check=1 ;; + --arch) + arch="$arg" + ;; + --cross-prefix) + cross_prefix="$arg" + ;; --help) usage ;; @@ -62,39 +82,58 @@ while [[ "$1" = -* ]]; do esac done -if [[ -z "$qemu_cc" ]]; then - echo "$0: cannot locate gcc 3.x. please install it or specify with --qemu-cc" - exit 1 -fi +#set kenel directory libkvm_kerneldir="$kerneldir" if (( want_module )); then libkvm_kerneldir=$(readlink -f kernel) fi -target_cpu() { - if [[ $(uname -m) = i?86 ]]; then - echo x86_64 +#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 +qemu_opts= +user_opts= +if [[ -z $cross_prefix ]]; then + if [[ -n $qemu_cc ]]; then + qemu_opts+=" --cc=$qemu_cc" else - uname -m + qemu_opts+=" --cc=$cc" fi -} + user_opts+=" --cc=$cc" +else + qemu_opts+=" --cross-prefix=$cross_prefix" + user_opts+=" --cross-prefix=$cross_prefix" +fi -(cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir") -(cd qemu; ./configure --target-list=$(target_cpu)-softmmu --cc="$qemu_cc" \ - --disable-kqemu --extra-cflags="-I $PWD/../user" \ - --extra-ldflags="-L $PWD/../user" \ +#set parameters compiling +if [ "$arch" = "i386" -o "$arch" = "x86_64" ]; then + target_exec="x86_64-softmmu" + qemu_opts+=" --enable-alsa" +fi + +#configure user dir +(cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir" \ + $user_opts --arch="$arch") + +#configure qemu +(cd qemu; ./configure --target-list=$target_exec \ + --disable-kqemu --extra-cflags="-I $PWD/../user $qemu_cflags" \ + --extra-ldflags="-L $PWD/../user $qemu_ldflags" \ --enable-kvm --kernel-path="$libkvm_kerneldir" \ - --enable-alsa \ ${disable_gcc_check:+"--disable-gcc-check"} \ - --prefix="$prefix" + --prefix="$prefix" \ + $qemu_opts --cpu=$arch ) - cat < config.mak +ARCH=$arch PREFIX=$prefix KERNELDIR=$kerneldir WANT_MODULE=$want_module +CROSS_COMPILE=$cross_prefix EOF - ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. 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