configure

   1 #!/bin/bash
   2
   3 prefix=/usr/local
   4 kernelsourcedir=
   5 kerneldir=/lib/modules/$(uname -r)/build
   6 cc=gcc
   7 ld=ld
   8 objcopy=objcopy
   9 ar=ar
  10 want_module=1
  11 qemu_cflags=
  12 qemu_ldflags=
  13 kvm_trace=
  14 qemu_opts=()
  15 cross_prefix=
  16 arch=`uname -m`
  17 target_exec=
  18 # don't use uname if kerneldir is set
  19 no_uname=
  20 depmod_version=
  21 if [ -z "TMPDIR" ] ; then
  22     TMPDIR=.
  23 fi
  24
  25 usage() {
  26     cat <<-EOF
  27         Usage: $0 [options]
  28
  29         Options include:
  30             --arch=ARCH            architecture to compile for ($arch)
  31             --cross-prefix=PREFIX  prefix for cross compile
  32             --prefix=PREFIX        where to install things ($prefix)
  33             --with-patched-kernel  don't use external module
  34             --with-kvm-trace       Enable kvm_trace
  35             --kerneldir=DIR        kernel build directory ($kerneldir)
  36             --qemu-cflags=CFLAGS   CFLAGS to add to qemu configuration
  37             --qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration
  38
  39         Any additional option is given to qemu's configure verbatim; including:
  40
  41 EOF
  42     cd qemu
  43     ./configure --help | egrep "enable-|disable-" \
  44         | grep -v user | grep -v system | grep -v kqemu | grep -v kvm \
  45         | sed -e "s/^  /    /g" \
  46         | sed -e"s/  enable/enable/g" | sed -e "s/  disable/disable/g"
  47     exit 1
  48 }
  49
  50 while [[ "$1" = -* ]]; do
  51     opt="$1"; shift
  52     arg=
  53     hasarg=
  54     if [[ "$opt" = *=* ]]; then
  55         arg="${opt#*=}"
  56         opt="${opt%%=*}"
  57         hasarg=1
  58     fi
  59     case "$opt" in
  60         --prefix)
  61             prefix="$arg"
  62             ;;
  63         --kerneldir)
  64             kerneldir="$arg"
  65             no_uname=1
  66             ;;
  67         --with-patched-kernel)
  68             want_module=
  69             ;;
  70         --with-kvm-trace)
  71             kvm_trace=y
  72             ;;
  73         --qemu-cflags)
  74             qemu_cflags="$arg"
  75             ;;
  76         --qemu-ldflags)
  77             qemu_ldflags="$arg"
  78             ;;
  79         --arch)
  80             arch="$arg"
  81             ;;
  82         --cross-prefix)
  83             cross_prefix="$arg"
  84             ;;
  85         --help)
  86             usage
  87             ;;
  88         *)
  89             qemu_opts=("${qemu_opts[@]}" "$opt${hasarg:+=$arg}")
  90             ;;
  91     esac
  92 done
  93
  94
  95 #set kenel directory
  96 libkvm_kerneldir=$(readlink -f kernel)
  97
  98 case $arch in
  99     i?86*|x86_64*)
 100         arch=${arch/#i?86/i386}
 101         target_exec="x86_64-softmmu"
 102         qemu_cflags="$qemu_cflags -DCONFIG_X86"
 103         ;;
 104     ia64*)
 105         target_exec="ia64-softmmu"
 106         ;;
 107     powerpc*)
 108         target_exec="ppcemb-softmmu"
 109         qemu_cflags="$qemu_cflags -I $PWD/libfdt"
 110         qemu_ldflags="$qemu_ldflags -L $PWD/libfdt"
 111         ;;
 112 esac
 113
 114 processor=${arch#*-}
 115 arch=${arch%%-*}
 116
 117 # see if we have split build and source directories
 118 if [ -d "$kerneldir/include2" ]; then
 119     kernelsourcedir=${kerneldir%/*}/source
 120 fi
 121
 122 if [ -n "$no_uname" -a "$want_module" ]; then
 123     if [ -e "$kerneldir/.kernelrelease" ]; then
 124         depmod_version=`cat "$kerneldir/.kernelrelease"`
 125
 126     elif [ -e "$kerneldir/include/config/kernel.release" ]; then
 127             depmod_version=`cat "$kerneldir/include/config/kernel.release"`
 128     elif [ -e "$kerneldir/.config" ]; then
 129         depmod_version=$(awk '/Linux kernel version:/ { print $NF }' \
 130                          "$kerneldir/.config")
 131     else
 132         echo
 133         echo "Error: kernelversion not found"
 134         echo "Please make sure your kernel is configured"
 135         echo
 136         exit 1
 137     fi
 138 fi
 139
 140 #configure user dir
 141 (cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir" \
 142           --arch="$arch" --processor="$processor" \
 143           ${cross_prefix:+"--cross-prefix=$cross_prefix"})
 144
 145 #configure qemu
 146 (cd qemu; ./configure --target-list=$target_exec \
 147     --disable-kqemu \
 148     --extra-cflags="-I $PWD/../libkvm $qemu_cflags" \
 149     --extra-ldflags="-L $PWD/../libkvm $qemu_ldflags" \
 150     --kerneldir="$libkvm_kerneldir" \
 151     --prefix="$prefix" \
 152     ${cross_prefix:+"--cross-prefix=$cross_prefix"} \
 153     ${cross_prefix:+"--cpu=$arch"} "${qemu_opts[@]}"
 154 ) || usage
 155
 156
 157 cat <<EOF > config.mak
 158 ARCH=$arch
 159 PROCESSOR=$processor
 160 PREFIX=$prefix
 161 KERNELDIR=$kerneldir
 162 KERNELSOURCEDIR=$kernelsourcedir
 163 LIBKVM_KERNELDIR=$libkvm_kerneldir
 164 WANT_MODULE=$want_module
 165 CROSS_COMPILE=$cross_prefix
 166 CC=$cross_prefix$cc
 167 LD=$cross_prefix$ld
 168 OBJCOPY=$cross_prefix$objcopy
 169 AR=$cross_prefix$ar
 170 DEPMOD_VERSION=$depmod_version
 171 EOF
 172
 173 cat <<EOF > kernel/config.kbuild
 174 EXT_CONFIG_KVM_TRACE=$kvm_trace
 175 EOF