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 depmod_version=
  20 if [ -z "TMPDIR" ] ; then
  21     TMPDIR=.
  22 fi
  23
  24 if [ ! -e kernel/Makefile ]; then
  25     want_module=
  26 fi
  27
  28 usage() {
  29     cat <<-EOF
  30         Usage: $0 [options]
  31
  32         Options include:
  33             --arch=ARCH            architecture to compile for ($arch)
  34             --cross-prefix=PREFIX  prefix for cross compile
  35             --prefix=PREFIX        where to install things ($prefix)
  36             --with-patched-kernel  don't use external module
  37             --with-kvm-trace       Enable kvm_trace
  38             --kerneldir=DIR        kernel build directory ($kerneldir)
  39             --qemu-cflags=CFLAGS   CFLAGS to add to qemu configuration
  40             --qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration
  41
  42         Any additional option is given to qemu's configure verbatim; including:
  43
  44 EOF
  45     cd qemu
  46     ./configure --help | egrep "enable-|disable-" \
  47         | grep -v user | grep -v system | grep -v kqemu | grep -v kvm \
  48         | sed -e "s/^  /    /g" \
  49         | sed -e"s/  enable/enable/g" | sed -e "s/  disable/disable/g"
  50     exit 1
  51 }
  52
  53 while [[ "$1" = -* ]]; do
  54     opt="$1"; shift
  55     arg=
  56     hasarg=
  57     if [[ "$opt" = *=* ]]; then
  58         arg="${opt#*=}"
  59         opt="${opt%%=*}"
  60         hasarg=1
  61     fi
  62     case "$opt" in
  63         --prefix)
  64             prefix="$arg"
  65             ;;
  66         --kerneldir)
  67             kerneldir="$arg"
  68             no_uname=1
  69             ;;
  70         --with-patched-kernel)
  71             want_module=
  72             ;;
  73         --with-kvm-trace)
  74             kvm_trace=y
  75             ;;
  76         --qemu-cflags)
  77             qemu_cflags="$arg"
  78             ;;
  79         --qemu-ldflags)
  80             qemu_ldflags="$arg"
  81             ;;
  82         --arch)
  83             arch="$arg"
  84             ;;
  85         --cross-prefix)
  86             cross_prefix="$arg"
  87             ;;
  88         --help)
  89             usage
  90             ;;
  91         *)
  92             qemu_opts=("${qemu_opts[@]}" "$opt${hasarg:+=$arg}")
  93             ;;
  94     esac
  95 done
  96
  97
  98 #set kenel directory
  99 libkvm_kerneldir=$(readlink -f kernel)
 100
 101 case $arch in
 102     i?86*|x86_64*)
 103         arch=${arch/#i?86/i386}
 104         target_exec="x86_64-softmmu"
 105         qemu_cflags="$qemu_cflags -DCONFIG_X86"
 106         ;;
 107     ia64*)
 108         target_exec="ia64-softmmu"
 109         ;;
 110     powerpc*)
 111         target_exec="ppcemb-softmmu"
 112         qemu_cflags="$qemu_cflags -I $PWD/libfdt"
 113         qemu_ldflags="$qemu_ldflags -L $PWD/libfdt"
 114         ;;
 115 esac
 116
 117 processor=${arch#*-}
 118 arch=${arch%%-*}
 119
 120 #configure kernel module
 121 [[ -n "$want_module" ]] && (cd kernel;
 122     ./configure \
 123         --kerneldir="$kerneldir" \
 124         --arch="$arch" \
 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