common_functions

   1 #!/bin/bash
   2
   3 set_build_arch()
   4 {
   5     : ${BUILD_HOST_ARCH:=`uname -m`}
   6
   7     if [ -z "$BUILD_ARCH" ]; then
   8         BUILD_ARCH="$BUILD_HOST_ARCH"
   9         test i686 != "$BUILD_ARCH" || BUILD_ARCH=i586 # XXX: why?
  10     fi
  11
  12     case $BUILD_ARCH in
  13       i686) BUILD_ARCH="i686:i586:i486:i386" ;;
  14       i586) BUILD_ARCH="i586:i486:i386" ;;
  15       i486) BUILD_ARCH="i486:i386" ;;
  16       i386) BUILD_ARCH="i386" ;;
  17       x86_64) BUILD_ARCH="x86_64:i686:i586:i486:i386" ;;
  18       sparc64v) BUILD_ARCH="sparc64v:sparc64:sparcv9v:sparcv9:sparcv8:sparc" ;;
  19       sparc64) BUILD_ARCH="sparc64:sparcv9:sparcv8:sparc" ;;
  20       sparcv9v) BUILD_ARCH="sparcv9v:sparcv9:sparcv8:sparc" ;;
  21       sparcv9) BUILD_ARCH="sparcv9:sparcv8:sparc" ;;
  22       sparcv8) BUILD_ARCH="sparcv8:sparc" ;;
  23       sparc) BUILD_ARCH="sparc" ;;
  24     esac
  25     if test "$BUILD_ARCH" != "${BUILD_ARCH#i686}" ; then
  26         cpuflags=`grep ^flags /proc/cpuinfo`
  27         cpuflags="$cpuflags "
  28         if test "$cpuflags" = "${cpuflags/ cx8 /}" -o "$cpuflags" = "${cpuflags/ cmov /}"; then
  29             echo "Your cpu doesn't support i686 rpms. Exit."
  30             cleanup_and_exit 1
  31         fi
  32     fi
  33 }
  34
  35 check_exit()
  36 {
  37     if test -e $BUILD_ROOT/exit; then
  38         echo "exit ..."
  39         cleanup_and_exit 1
  40     fi
  41 }
  42
  43 is_emulator_arch()
  44 {
  45     local arch
  46     for arch in $EMULATOR_ARCHS; do
  47         if test "$BUILD_ARCH" = "$arch"; then
  48             return 0
  49         fi
  50     done
  51     return 1
  52 }
  53
  54 check_use_emulator()
  55 {
  56     is_emulator_arch || return
  57
  58     # to run the qemu initialization in the XEN chroot, we need to register it with a statically build shell
  59     case "$BUILD_HOST_ARCH" in
  60         i?86|x86_64)
  61             if test -e /bin/bash-static \
  62                 -a -e /bin/mount-static \
  63                 -a -e /usr/sbin/qemu-binfmt-conf.sh; then
  64                 return 0
  65             else
  66                 # XXX: error?
  67                 echo "Warning: cross compile not possible due to missing static binaries"
  68             fi
  69         ;;
  70     esac
  71     return 1
  72 }