32 lines
707 B
Bash
32 lines
707 B
Bash
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#!/bin/bash
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BOOT_DIR=$1
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MODULES_DIR=$2
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ISO_DIR=$3
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PLUTO_ELF=$4
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OUTPUT_FILE=$5
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MAP_FILE=$MODULES_DIR/'kernel.map'
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exit_missing() {
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printf "$_ must be installed\n";
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exit 1;
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}
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# Check dependencies
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which xorriso > /dev/null || exit_missing
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which grub-mkrescue > /dev/null || exit_missing
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which readelf > /dev/null || exit_missing
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mkdir -p $BOOT_DIR
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mkdir -p $MODULES_DIR
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cp -r grub $BOOT_DIR
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cp $PLUTO_ELF $BOOT_DIR/"pluto.elf"
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# Read the symbols from the binary, remove all the unnecessary columns with awk and emit to a map file
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readelf -s $PLUTO_ELF | grep -F "FUNC" | awk '{$1=$3=$4=$5=$6=$7=""; print $0}' | sort -k 1 > $MAP_FILE
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echo "" >> $MAP_FILE
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grub-mkrescue -o $OUTPUT_FILE $ISO_DIR
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