scripts/runqemu-extract-sdk

   1 #!/bin/bash
   2 #
   3 # This utility extracts an SDK image tarball using pseudo, and stores
   4 # the pseudo database in var/pseudo within the rootfs. If you want to
   5 # boot QEMU using an nfsroot, you *must* use this script to create the
   6 # rootfs to ensure it is done correctly with pseudo.
   7 #
   8 # Copyright (c) 2010 Intel Corp.
   9 #
  10 # SPDX-License-Identifier: GPL-2.0-only
  11 #
  12
  13 function usage() {
  14         echo "Usage: $0 <image-tarball> <extract-dir>"
  15 }
  16
  17 if [ $# -ne 2 ]; then
  18         usage
  19         exit 1
  20 fi
  21
  22 SYSROOT_SETUP_SCRIPT=`which oe-find-native-sysroot 2> /dev/null`
  23 if [ -z "$SYSROOT_SETUP_SCRIPT" ]; then
  24         echo "Error: Unable to find the oe-find-native-sysroot script"
  25         echo "Did you forget to source your build system environment setup script?"
  26         exit 1
  27 fi
  28 . $SYSROOT_SETUP_SCRIPT meta-ide-support
  29 PSEUDO_OPTS="-P $OECORE_NATIVE_SYSROOT/usr"
  30
  31 ROOTFS_TARBALL=$1
  32 SDK_ROOTFS_DIR=$2
  33
  34 if [ ! -e "$ROOTFS_TARBALL" ]; then
  35         echo "Error: sdk tarball '$ROOTFS_TARBALL' does not exist"
  36         usage
  37         exit 1
  38 fi
  39
  40 # Convert SDK_ROOTFS_DIR to a full pathname
  41 if [[ ${SDK_ROOTFS_DIR:0:1} != "/" ]]; then
  42         SDK_ROOTFS_DIR=$(readlink -f $(pwd)/$SDK_ROOTFS_DIR)
  43 fi
  44
  45 TAR_OPTS=""
  46 if [[ "$ROOTFS_TARBALL" =~ tar\.xz$ ]]; then
  47         TAR_OPTS="--numeric-owner -xJf"
  48 fi
  49 if [[ "$ROOTFS_TARBALL" =~ tar\.bz2$ ]]; then
  50         TAR_OPTS="--numeric-owner -xjf"
  51 fi
  52 if [[ "$ROOTFS_TARBALL" =~ tar\.gz$ ]]; then
  53         TAR_OPTS="--numeric-owner -xzf"
  54 fi
  55 if [[ "$ROOTFS_TARBALL" =~ \.tar$ ]]; then
  56         TAR_OPTS="--numeric-owner -xf"
  57 fi
  58 if [ -z "$TAR_OPTS" ]; then
  59         echo "Error: Unable to determine sdk tarball format"
  60         echo "Accepted types: .tar / .tar.gz / .tar.bz2 / .tar.xz"
  61         exit 1
  62 fi
  63
  64 if [ ! -d "$SDK_ROOTFS_DIR" ]; then
  65         echo "Creating directory $SDK_ROOTFS_DIR"
  66         mkdir -p "$SDK_ROOTFS_DIR"
  67 fi
  68
  69 pseudo_state_dir="$SDK_ROOTFS_DIR/../$(basename "$SDK_ROOTFS_DIR").pseudo_state"
  70 pseudo_state_dir="$(readlink -f $pseudo_state_dir)"
  71
  72 debug_image="`echo $ROOTFS_TARBALL | grep '\-dbg\.rootfs\.tar'`"
  73
  74 if [ -e "$pseudo_state_dir" -a -z "$debug_image" ]; then
  75         echo "Error: $pseudo_state_dir already exists!"
  76         echo "Please delete the rootfs tree and pseudo directory manually"
  77         echo "if this is really what you want."
  78         exit 1
  79 fi
  80
  81 mkdir -p "$pseudo_state_dir"
  82 touch "$pseudo_state_dir/pseudo.pid"
  83 PSEUDO_LOCALSTATEDIR="$pseudo_state_dir"
  84 export PSEUDO_LOCALSTATEDIR
  85
  86 echo "Extracting rootfs tarball using pseudo..."
  87 echo "$PSEUDO $PSEUDO_OPTS tar -C \"$SDK_ROOTFS_DIR\" $TAR_OPTS \"$ROOTFS_TARBALL\""
  88 $PSEUDO $PSEUDO_OPTS tar -C "$SDK_ROOTFS_DIR" $TAR_OPTS "$ROOTFS_TARBALL"
  89
  90 DIRCHECK=`ls -l "$SDK_ROOTFS_DIR" | wc -l`
  91 if [ "$DIRCHECK" -lt 5 ]; then
  92         echo "Warning: I don't see many files in $SDK_ROOTFS_DIR"
  93         echo "Please double-check the extraction worked as intended"
  94         exit 0
  95 fi
  96
  97 echo "SDK image successfully extracted to $SDK_ROOTFS_DIR"
  98
  99 exit 0