kvm/configure

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