build-rpi4.sh

   1 #!/bin/bash
   2
   3 NCPUS=`cat /proc/cpuinfo | grep processor | wc -l`
   4 NCPUS=$(($NCPUS * 2))
   5
   6 if [ $# == 0 ]; then
   7         echo "Usage : $0 <architecture> [rt]"
   8         echo "  architecture : arm or arm64"
   9         echo "  e.g) $0 arm"
  10         echo "  e.g) $0 arm64 rt"
  11         exit
  12 fi
  13
  14 # Check this system has ccache
  15 check_ccache()
  16 {
  17         type ccache
  18         if [ "$?" -eq "0" ]; then
  19                 CCACHE=ccache
  20         fi
  21 }
  22
  23 check_ccache
  24
  25 cleanup_localversion()
  26 {
  27         rm -f localversion-rt
  28 }
  29
  30 DEFCONFIG=tizen_bcm2711_defconfig
  31 touch .kernel_buildenv
  32 if [ "$2" = "rt" ]; then
  33         echo "Build RT-Kernel"
  34         BUILD_VERSION=`cat .kernel_buildenv`
  35         if [ "$BUILD_VERSION" != "RT" ]; then
  36                 echo "Previous .config is for Normal Kernel, so remove"
  37                 rm -f .config
  38         fi
  39         DEFCONFIG=tizen_bcm2711_rt_defconfig
  40         cp _localversion-rt localversion-rt
  41         trap cleanup_localversion EXIT
  42         echo "RT" > ./.kernel_buildenv
  43 else
  44         echo "Build Normal-Kernel"
  45         BUILD_VERSION=`cat .kernel_buildenv`
  46         if [ "$BUILD_VERSION" == "RT" ]; then
  47                 echo "Previous .config is for RT Kernel, so remove"
  48                 rm -f .config
  49         fi
  50         echo "NORMAL" > ./.kernel_buildenv
  51 fi
  52
  53 if [ $1 = "arm" ]; then
  54         echo "ARM"
  55
  56         rm -f arch/arm/boot/zImage
  57         rm -f arch/arm/boot/dts/*.dtb
  58
  59         if ! [ -e .config ] ; then
  60                 make ARCH=arm CROSS_COMPILE="${CCACHE} arm-linux-gnueabi-" ${DEFCONFIG}
  61         fi
  62
  63         make ARCH=arm CROSS_COMPILE="${CCACHE} arm-linux-gnueabi-" -j $NCPUS
  64
  65         if [ ! -f "./arch/arm/boot/zImage" ]; then
  66                 echo "Build fail"
  67                 exit 1
  68         fi
  69 elif [ $1 = "arm64" ]; then
  70         echo "ARM64"
  71
  72         rm -f arch/arm64/boot/Image
  73         rm -f arch/arm64/boot/dts/broadcom/*.dtb
  74
  75         if ! [ -e .config ] ; then
  76                 make ARCH=arm64 CROSS_COMPILE="${CCACHE} aarch64-linux-gnu-" ${DEFCONFIG}
  77         fi
  78         make ARCH=arm64 CROSS_COMPILE="${CCACHE} aarch64-linux-gnu-" -j $NCPUS
  79         if [ ! -f "./arch/arm64/boot/Image" ]; then
  80                 echo "Build fail"
  81                 exit 1
  82         fi
  83 fi
  84
  85 scripts/mkbootimg_rpi4.sh