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
  19 usage() {
  20     cat <<-EOF
  21         Usage: $0 [options]
  22
  23         Options include:
  24             --arch=ARCH            architecture to compile for ($arch)
  25             --cross-prefix=PREFIX  prefix for cross compile
  26             --prefix=PREFIX        where to install things ($prefix)
  27             --with-patched-kernel  don't use external module
  28             --with-kvm-trace       Enable kvm_trace
  29             --kerneldir=DIR        kernel build directory ($kerneldir)
  30             --qemu-cflags=CFLAGS   CFLAGS to add to qemu configuration
  31             --qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration
  32
  33         Any additional option is given to qemu's configure verbatim; including:
  34
  35 EOF
  36     cd qemu
  37     ./configure --help | egrep "enable-|disable-" \
  38         | grep -v user | grep -v system | grep -v kqemu | grep -v kvm \
  39         | sed -e "s/^  /    /g" \
  40         | sed -e"s/  enable/enable/g" | sed -e "s/  disable/disable/g"
  41     exit 1
  42 }
  43
  44 while [[ "$1" = -* ]]; do
  45     opt="$1"; shift
  46     arg=
  47     hasarg=
  48     if [[ "$opt" = *=* ]]; then
  49         arg="${opt#*=}"
  50         opt="${opt%%=*}"
  51         hasarg=1
  52     fi
  53     case "$opt" in
  54         --prefix)
  55             prefix="$arg"
  56             ;;
  57         --kerneldir)
  58             kerneldir="$arg"
  59             ;;
  60         --with-patched-kernel)
  61             want_module=
  62             ;;
  63         --with-kvm-trace)
  64             kvm_trace=y
  65             ;;
  66         --qemu-cflags)
  67             qemu_cflags="$arg"
  68             ;;
  69         --qemu-ldflags)
  70             qemu_ldflags="$arg"
  71             ;;
  72         --arch)
  73             arch="$arg"
  74             ;;
  75         --cross-prefix)
  76             cross_prefix="$arg"
  77             ;;
  78         --help)
  79             usage
  80             ;;
  81         *)
  82             qemu_opts=("${qemu_opts[@]}" "$opt${hasarg:+=$arg}")
  83             ;;
  84     esac
  85 done
  86
  87
  88 #set kenel directory
  89 libkvm_kerneldir=$(readlink -f kernel)
  90
  91 case $arch in
  92     i?86*|x86_64*)
  93         arch=${arch/#i?86/i386}
  94         target_exec="x86_64-softmmu"
  95         qemu_cflags="$qemu_cflags -DCONFIG_X86"
  96         ;;
  97     ia64*)
  98         target_exec="ia64-softmmu"
  99         ;;
 100     powerpc*)
 101         target_exec="ppcemb-softmmu"
 102         qemu_cflags="$qemu_cflags -I $PWD/libfdt"
 103         qemu_ldflags="$qemu_ldflags -L $PWD/libfdt"
 104         ;;
 105 esac
 106
 107 processor=${arch#*-}
 108 arch=${arch%%-*}
 109
 110 # see if we have split build and source directories
 111 if [ -d "$kerneldir/include2" ]; then
 112     kernelsourcedir=${kerneldir%/*}/source
 113 fi
 114
 115 #configure user dir
 116 (cd user; ./configure --prefix="$prefix" --kerneldir="$libkvm_kerneldir" \
 117           --arch="$arch" --processor="$processor" \
 118           ${cross_prefix:+"--cross-prefix=$cross_prefix"})
 119
 120 #configure qemu
 121 (cd qemu; ./configure --target-list=$target_exec \
 122     --disable-kqemu \
 123     --disable-gcc-check \
 124     --extra-cflags="-I $PWD/../libkvm $qemu_cflags" \
 125     --extra-ldflags="-L $PWD/../libkvm $qemu_ldflags" \
 126     --kerneldir="$libkvm_kerneldir" \
 127     --prefix="$prefix" \
 128     ${cross_prefix:+"--cross-prefix=$cross_prefix"} \
 129     ${cross_prefix:+"--cpu=$arch"} "${qemu_opts[@]}"
 130 ) || usage
 131
 132
 133 cat <<EOF > config.mak
 134 ARCH=$arch
 135 PROCESSOR=$processor
 136 PREFIX=$prefix
 137 KERNELDIR=$kerneldir
 138 KERNELSOURCEDIR=$kernelsourcedir
 139 LIBKVM_KERNELDIR=$libkvm_kerneldir
 140 WANT_MODULE=$want_module
 141 CROSS_COMPILE=$cross_prefix
 142 CC=$cross_prefix$cc
 143 LD=$cross_prefix$ld
 144 OBJCOPY=$cross_prefix$objcopy
 145 AR=$cross_prefix$ar
 146 EOF
 147
 148 cat <<EOF > kernel/config.kbuild
 149 EXT_CONFIG_KVM_TRACE=$kvm_trace
 150 EOF