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#!/bin/bash
#Uses objdump to obtain global functions from object files - 2nd script argument
#Creates a linker script in script's directory, with 1st argument as a name, sets every symbol as local, as the ones obtained as global
readonly SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
readonly NEWLINE=$'\n'
readonly LINKER_SCRIPT=$1
readonly BIF_LIBRARY=$2
readonly DX10_LIBRARY=$3
readonly DXIL_LIBRARY=$4
shift
formatAndWriteSymbols() {
if [[ -n "${1}" ]]; then
formattedSymbols=$(echo "${1}" | awk '{print $NF}')
formattedSymbols=$(echo -e "${formattedSymbols}" | sed ':a;N;$!ba;s/\n/\n\t\t/g')
formattedSymbols="${formattedSymbols//${NEWLINE}/;${NEWLINE}}"
echo -e "\t\t$formattedSymbols;" >> ${SCRIPT_DIR}/${LINKER_SCRIPT}
fi
}
#-----------------------------------------------------------------------------------------
echo -e "{\n\t global:" > ${SCRIPT_DIR}/${LINKER_SCRIPT}
if [[ "$BIF_LIBRARY" != "null" ]]; then
symbolsBIF=$(objdump -t $BIF_LIBRARY | grep " O " | grep " g " | grep -v hidden)
formatAndWriteSymbols "$symbolsBIF"
fi
for obj_file in "$@"; do
if [[ $obj_file == *.o ]]; then
symbols=$(objdump -t $obj_file | grep " F " | grep " g " | grep -v hidden)
formatAndWriteSymbols "$symbols"
symbols=$(objdump -t $obj_file | grep " w " | grep -v hidden)
formatAndWriteSymbols "$symbols"
symbols=$(objdump -t $obj_file | grep " W " | grep -v hidden)
formatAndWriteSymbols "$symbols"
fi
done
echo -e "\tlocal: *;" >> ${SCRIPT_DIR}/${LINKER_SCRIPT}
echo -e "};" >> ${SCRIPT_DIR}/${LINKER_SCRIPT}
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