kvm/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 want_module=1
  10 qemu_cflags=
  11 qemu_ldflags=
  12 kvm_trace=
  13 qemu_opts=()
  14 cross_prefix=
  15 arch=`uname -m`
  16 target_exec=
  17
  18 usage() {
  19     cat <<-EOF
  20         Usage: $0 [options]
  21
  22         Options include:
  23             --arch=ARCH            architecture to compile for ($arch)
  24             --cross-prefix=PREFIX  prefix for cross compile
  25             --prefix=PREFIX        where to install things ($prefix)
  26             --with-patched-kernel  don't use external module
  27             --with-kvm-trace       Enable kvm_trace
  28             --kerneldir=DIR        kernel build directory ($kerneldir)
  29             --qemu-cflags=CFLAGS   CFLAGS to add to qemu configuration
  30             --qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration
  31
  32         Any additional option is given to qemu's configure verbatim; including:
  33
  34 EOF
  35     cd qemu
  36     ./configure --help | egrep "enable-|disable-" \
  37         | grep -v user | grep -v system | grep -v kqemu | grep -v kvm \
  38         | sed -e "s/^  /    /g" \
  39         | sed -e"s/  enable/enable/g" | sed -e "s/  disable/disable/g"
  40     exit 1
  41 }
  42
  43 while [[ "$1" = -* ]]; do
  44     opt="$1"; shift
  45     arg=
  46     hasarg=
  47     if [[ "$opt" = *=* ]]; then
  48         arg="${opt#*=}"
  49         opt="${opt%%=*}"
  50         hasarg=1
  51     fi
  52     case "$opt" in
  53         --prefix)
  54             prefix="$arg"
  55             ;;
  56         --kerneldir)
  57             kerneldir="$arg"
  58             ;;
  59         --with-patched-kernel)
  60             want_module=
  61             ;;
  62         --with-kvm-trace)
  63             kvm_trace=y
  64             ;;
  65         --qemu-cflags)
  66             qemu_cflags="$arg"
  67             ;;
  68         --qemu-ldflags)
  69             qemu_ldflags="$arg"
  70             ;;
  71         --arch)
  72             arch="$arg"
  73             ;;
  74         --cross-prefix)
  75             cross_prefix="$arg"
  76             ;;
  77         --help)
  78             usage
  79             ;;
  80         *)
  81             qemu_opts=("${qemu_opts[@]}" "$opt${hasarg:+=$arg}")
  82             ;;
  83     esac
  84 done
  85
  86
  87 #set kenel directory
  88 libkvm_kerneldir=$(readlink -f kernel)
  89
  90 case $arch in
  91     i?86*|x86_64*)
  92         arch=${arch/#i?86/i386}
  93         target_exec="x86_64-softmmu"
  94         qemu_cflags="$qemu_cflags -DCONFIG_X86"
  95         ;;
  96     ia64*)
  97         target_exec="ia64-softmmu"
  98         ;;
  99     powerpc*)
 100         target_exec="ppcemb-softmmu"
 101         qemu_cflags="$qemu_cflags -I $PWD/libfdt"
 102         qemu_ldflags="$qemu_ldflags -L $PWD/libfdt"
 103         ;;
 104 esac
 105
 106 # see if we have split build and source directories
 107 if [ -d "$kerneldir/include2" ]; then
 108     kernelsourcedir=${kerneldir%/*}/source
 109 fi
 110
 111 #configure user dir
 112 (cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir" \
 113           --arch="$arch" \
 114           ${cross_prefix:+"--cross-prefix=$cross_prefix"})
 115
 116 #configure qemu
 117 (cd qemu; ./configure --target-list=$target_exec \
 118     --disable-kqemu \
 119     --disable-gcc-check \
 120     --extra-cflags="-I $PWD/../libkvm $qemu_cflags" \
 121     --extra-ldflags="-L $PWD/../libkvm $qemu_ldflags" \
 122     --kernel-path="$libkvm_kerneldir" \
 123     --prefix="$prefix" \
 124     ${cross_prefix:+"--cross-prefix=$cross_prefix"} \
 125     ${cross_prefix:+"--cpu=$arch"} "${qemu_opts[@]}"
 126 ) || usage
 127
 128
 129 cat <<EOF > config.mak
 130 ARCH=$arch
 131 PREFIX=$prefix
 132 KERNELDIR=$kerneldir
 133 KERNELSOURCEDIR=$kernelsourcedir
 134 LIBKVM_KERNELDIR=$libkvm_kerneldir
 135 WANT_MODULE=$want_module
 136 CROSS_COMPILE=$cross_prefix
 137 CC=$cross_prefix$cc
 138 LD=$cross_prefix$ld
 139 OBJCOPY=$cross_prefix$objcopy
 140 EOF
 141
 142 cat <<EOF > kernel/config.kbuild
 143 EXT_CONFIG_KVM_TRACE=$kvm_trace
 144 EOF