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#!/bin/bash
# scripts/common makes use of variables defined in the ImageBuilder
# config file as described in README.md, including but not limited to
# the following:
#
# - UBOOT_SOURCE
# - UBOOT_SCRIPT
# - NUM_DOMUS
# - DOMU_PASSTHROUGH_PATHS
# - DOMU_PASSTHROUGH_DTB
tmp_files=()
tmp_dirs=()
function remove_tmp_files()
{
for i in "${tmp_files[@]}"
do
rm -r "$i"
done
for i in "${tmp_dirs[@]}"
do
rm -rf "$i"
done
}
function cleanup_and_return_err()
{
rm -f $UBOOT_SOURCE $UBOOT_SCRIPT
remove_tmp_files
exit 1
}
function sanity_check_partial_dts()
{
local domU_passthrough_path="$1"
local repo="$2"
local dir="$3"
local address_cells_val
local size_cells_val
local tmpdtb
local val
local file
for devpath in $domU_passthrough_path
do
file=${devpath##*/}
file="$repo"/"$dir"/"$file".dts
if ! test -f "$file"
then
echo "Device tree \"$file\" is not present"
cleanup_and_return_err
fi
tmpdtb=`mktemp`
dtc -I dts -O dtb -o $tmpdtb "$file"
tmp_files+=($tmpdtb)
val=$(fdtget $tmpdtb /passthrough \#address-cells)
if test -z "$address_cells_val"
then
address_cells_val="$val"
else
if test "$address_cells_val" -ne "$val"
then
echo "Address cells mismatch for ${DOMU_PASSTHROUGH_PATHS[$i]}"
cleanup_and_return_err
fi
fi
val=$(fdtget $tmpdtb /passthrough \#size-cells)
if test -z "$size_cells_val"
then
size_cells_val="$val"
else
if test "$size_cells_val" -ne "$val"
then
echo "Size cells mismatch for ${DOMU_PASSTHROUGH_PATHS[$i]}"
cleanup_and_return_err
fi
fi
done
}
function compile_merge_partial_dts()
{
local repo=$(echo "$1" | awk '{print $1}')
local dir=$(echo "$1" | awk '{print $2}')
local tmp
local tmp_dtb_dir
if [[ "$repo" =~ .*@.*:.* ]]
then
tmp=`mktemp -d`
tmp_dirs+=($tmp)
echo "Cloning git repo \"$git_repo\""
git clone "$repo" $tmp
if [ $? -ne 0 ]
then
echo "Error occurred while cloning \"$git_repo\""
cleanup_and_return_err
fi
repo=$tmp
fi
tmp_dtb_dir=`mktemp -d "partial-dtbs-XXX"`
if test -z "$dir"
then
dir="."
fi
i=0
while test $i -lt $NUM_DOMUS
do
if test -z "${DOMU_PASSTHROUGH_PATHS[$i]}"
then
echo "DOMU_PASSTHROUGH_PATHS[$i] is not defined"
cleanup_and_return_err
fi
sanity_check_partial_dts "${DOMU_PASSTHROUGH_PATHS[$i]}" "$repo" "$dir"
tmp=`mktemp "$tmp_dtb_dir/partial-dts-domU$i-XXX"`
tmp_files+=($tmp)
j=1
for devpath in ${DOMU_PASSTHROUGH_PATHS[$i]}
do
file=${devpath##*/}
file="$repo"/"$dir"/"$file".dts
echo "/include/ \"$file\"" >> "$tmp"
# All the subsequent dts files should not have dts version mentioned
if [ $j -gt 1 ]
then
sed -i '/\/dts-v/d' "$file"
fi
j=$(( $j + 1 ))
done
dtc -I dts -O dtb -o "$tmp".dtb "$tmp"
if [ $? -ne 0 ]
then
echo "Could not compile \"$tmp\""
cleanup_and_return_err
fi
if test "${DOMU_PASSTHROUGH_DTB[$i]}"
then
echo "Can't set both PASSTHROUGH_DTS_REPO and DOMU_PASSTHROUGH_DTB"
cleanup_and_return_err
fi
DOMU_PASSTHROUGH_DTB[$i]="$tmp".dtb
i=$(( $i + 1 ))
done
}
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