mirror of
https://github.com/pret/pokeplatinum.git
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Unignore tools/asmdiff/asmdiff.sh
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PikalaxALT
259
tools/asmdiff/asmdiff.sh
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259
tools/asmdiff/asmdiff.sh
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@@ -0,0 +1,259 @@
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#!/usr/bin/env bash
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case $OSTYPE in
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darwin*)
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echo "" | gcut -f1 &>/dev/null || { echo "This script requires GNU coreutils, install it via homebrew (brew install coreutils)" >&2; exit 1; }
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CUT=gcut
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;;
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*)
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CUT=cut
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;;
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esac
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MYDIR=$(dirname "$0")
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mkdir -p "${MYDIR}"/.bins "${MYDIR}"/.files
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DEFAULT_BASEROM=baserom.nds
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DEFAULT_ARM9BUILDDIR=build/platinum.us
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DEFAULT_ARM7BUILDDIR=sub/build
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DEFAULT_FSDIR=files
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# Build C utils on demand
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make -C "${MYDIR}" --no-print-directory
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# getword FILE OFFSET
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getword() {
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od -j "$2" -N 4 -A n -t u "$1" | awk '{$1=$1};1'
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}
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# dump_autoload SBIN PROC VMA SIZE AUTOLOAD
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dump_autoload() {
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outfile="${1}_a${5}"
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# ARM9 has the start module params in the footer
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if [ "$proc" == armv5te ]; then
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_start_ModuleParams=$(($(getword "$1" $(($4-8)))-$3))
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else
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_start_ModuleParams=0
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# Have to be a bit clever for ARM7
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for i in $(seq 0 4 $4); do
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if [ $(getword "$1" $i ) == $(($3 + $4)) ]; then
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_start_ModuleParams=$((i-4))
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break
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fi
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done
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fi
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[[ $_start_ModuleParams == 0 ]] && { echo "Unable to find _start_ModuleParams" >&2; exit 1; }
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aload_list=$(($(getword "$1" $_start_ModuleParams)-$3))
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aload_list_end=$(($(getword "$1" $((_start_ModuleParams+4)))-$3))
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aload_start=$(($(getword "$1" $((_start_ModuleParams+8)))-$3))
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[[ $aload_list == $aload_list_end ]] && { echo "error: autoload index exceeds list size" >&2; exit 1; }
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for i in $(seq 1 "$5"); do
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avma=$(getword "$1" $aload_list)
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asize=$(getword "$1" $((aload_list+4)))
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((aload_start+=asize))
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((aload_list+=12))
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[[ $aload_list == $aload_list_end ]] && { echo "error: autoload index exceeds list size" >&2; exit 1; }
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done
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avma=$(getword "$1" $aload_list)
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asize=$(getword "$1" $((aload_list+4)))
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dd if="$1" of="$outfile" bs=1 skip=$aload_start count=$asize 2>/dev/null
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echo $outfile $avma
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}
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[[ -n "$DEVKITARM" ]] && export PATH=${DEVKITARM}/bin:${PATH}
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POSITIONAL=()
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usage () {
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echo "Diff segments of a Nintendo DS ROM"
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echo "Usage: $0 [-h] [-7] [-m OVERLAY] [-r BASEROM] [-d BUILDDIR] [START [END]]"
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echo ""
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echo "Arguments:"
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echo " START, END Start and end virtual addresses to diff"
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echo ""
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echo "Options:"
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echo " -7 Diff the ARM7 module (default: ARM9)"
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echo " -a AUTOLOAD Diff the indicated autoload module (default: static module)"
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echo " -m OVERLAY Diff the indicated overlay module (default: static module)"
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echo " -r BASEROM Use the indicated baserom (default: baserom.nds)"
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echo " -d BUILDDIR Look for compiled binaries in this directory (default: build/platinum.us)"
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echo " -f FILE Dump the indicated file, and use hexdump instead"
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echo " -F FSDIR Filesystem path on the home system"
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echo " -t Force THUMB instructions (default: ARM)"
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echo " -h Show this message and exit"
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}
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while [[ $# -gt 0 ]]; do
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key="$1"
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case $key in
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-h)
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usage
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exit 0
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;;
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-7)
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proc=armv4t
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builddir=${builddir:-$DEFAULT_ARM7BUILDDIR}
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shift
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;;
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-a)
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[[ -n $autoload ]] && { echo "can only do one autoload at a time" >&2; exit 1; }
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mode=autoload
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autoload="$2"
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shift 2
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;;
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-m)
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[[ -n $overlay ]] && { echo "can only do one overlay at a time" >&2; exit 1; }
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mode=overlay
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overlay="$2"
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shift 2
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;;
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-r)
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baserom="$2"
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shift 2
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;;
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-t)
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thumb=-Mforce-thumb
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shift
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;;
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-f)
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mode="file"
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filepath="$2"
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shift 2
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;;
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-F)
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fsdir="$2"
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shift 2
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;;
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-d)
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builddir="$2"
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shift 2
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;;
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-*)
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usage
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echo unrecognized option flag: "$1"
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exit 1
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;;
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*)
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POSITIONAL+=("$1")
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shift
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;;
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esac
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done
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set -- "${POSITIONAL[@]}"
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mode=${mode:-static}
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proc=${proc:-armv5te}
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builddir=${builddir:-$DEFAULT_ARM9BUILDDIR}
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baserom=${baserom:-$DEFAULT_BASEROM}
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fsdir=${fsdir:-$DEFAULT_FSDIR}
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[[ -f "$baserom" ]] || { echo $0: $baserom: no such file or directory >&2; exit 1; }
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basestem=
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[[ $proc == armv4t ]] && basestem=${basestem}.sub
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[[ $mode == overlay ]] && basestem=${basestem}.o${overlay}
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basefile=${MYDIR}/.bins/${baserom}${basestem}.sbin
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case "$mode" in
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overlay)
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case $proc in
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armv4t)
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ovt=88
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;;
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armv5te)
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ovt=80
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;;
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esac
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if [ -f "${builddir}/component.files" ]; then
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defsfile=$(${CUT} -d '' -f2 "${builddir}/component.files")
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else
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defsfile=$( cd "${builddir}"; ls *.lcf | sed 's/.lcf/_defs.sbin/' )
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fi
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if [ -n "${overlay##*[!0-9]*}" 2>/dev/null ] ; then
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ovyfile=$(tail -c+16 "${builddir}/${defsfile}" | ${CUT} -d '' -f$((overlay+1)) )
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[[ -n $ovyfile ]] || { echo "Overlay num out of range" >&2; exit 1; }
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else
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ovyfile=${overlay%.*}.sbin
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overlay=$(($(tail -c+16 "${builddir}/${defsfile}" | tr '\0' '\n' | grep -n $ovyfile | ${CUT} -d: -f1)-1))
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[[ $overlay -eq -1 ]] && { echo "Invalid overlay name" >&2; exit 1; }
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fi
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ovtoff=$(getword "$baserom" "$ovt")
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vma=$(getword "$baserom" "$((ovtoff+32*overlay+4))")
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size=$(getword "$baserom" "$((ovtoff+32*overlay+8))")
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[[ $basefile -nt $baserom ]] || {
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fileid=$(getword "$baserom" "$((ovtoff+32*overlay+24))")
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param=$(getword "$baserom" "$((ovtoff+32*overlay+28))")
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fatoff=$(getword "$baserom" 72)
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fileoff=$(getword "$baserom" "$((fatoff+8*fileid))")
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filesize=$(($(getword "$baserom" "$((fatoff+8*fileid+4))")-fileoff))
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dd if="$baserom" of="$basefile" bs=1 skip="$fileoff" count="$filesize" 2>/dev/null
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(( param & 16777216 )) && {
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compsize=$((param & 16777215))
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"$MYDIR"/ntruncompbw "$basefile" "$vma" $((vma+compsize)) || { rm -f "$basefile"; exit 1; }
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}
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}
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buildfile=$builddir/$ovyfile
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;;
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static|autoload)
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case $proc in
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armv4t)
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romtab=48
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;;
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armv5te)
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romtab=32
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;;
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esac
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fileoff=$(getword "$baserom" "$romtab")
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vma=$(getword "$baserom" "$((romtab+8))")
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size=$(getword "$baserom" "$((romtab+12))")
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[[ $basefile -nt "$baserom" ]] || {
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dd if="$baserom" of="$basefile" bs=1 skip="$fileoff" count="$size" 2>/dev/null
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[[ $proc == armv5te ]] && {
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_start_ModuleParams=$(getword "$baserom" $((fileoff+size+4)))
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compstatend=$(getword "$basefile" $((_start_ModuleParams+20)))
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[[ $compstatend != "0" ]] && {
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"$MYDIR"/ntruncompbw "$basefile" "$vma" "$compstatend" || { rm -f "$basefile"; exit 1; }
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dd if=/dev/zero of="$basefile" bs=1 seek="$((_start_ModuleParams+20))" count=4 conv=notrunc 2>/dev/null
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}
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}
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}
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if [ -f "${builddir}/component.files" ]; then
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compname=$(${CUT} -d '' -f1 "${builddir}/component.files")
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defsfile=$(${CUT} -d '' -f2 "${builddir}/component.files")
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else
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compname=$( cd "${builddir}"; ls *.lcf | sed 's/lcf/sbin/' )
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defsfile=$( cd "${builddir}"; ls *.lcf | sed 's/.lcf/_defs.sbin/' )
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fi
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buildfile=${builddir}/${compname}
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if [ "$mode" == "autoload" ]; then
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resp=$( dump_autoload "$basefile" "$proc" "$vma" "$size" "$autoload" )
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basefile=$(echo $resp | cut -d' ' -f1)
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size=$( wc -c <${buildfile} )
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resp=$( dump_autoload "$buildfile" "$proc" "$vma" "$size" "$autoload" )
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buildfile=$(echo $resp | cut -d' ' -f1)
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vma=$(echo $resp | cut -d' ' -f2)
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fi
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;;
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file)
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buildfile=${fsdir}/${filepath}
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[[ -f "${buildfile}" ]] || { echo file not found: "${buildfile}" >&2; exit 1; }
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basefile=${MYDIR}/.files/${filepath}
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[[ "${basefile}" -nt "$baserom" ]] || {
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mkdir -p $(dirname $basefile)
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"${MYDIR}"/ntrextractfile "${baserom}" "${filepath}" >"${basefile}"
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}
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cmp -s "$basefile" "$buildfile" || diff -u <(hexdump -Cv "$basefile") <(hexdump -Cv "$buildfile")
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exit 0
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;;
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esac
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[[ -n "$1" ]] && start=$(($1)) || start=$vma
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[[ -n "$2" ]] && size=$(($2)) || size=$(wc -c <"$basefile")
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do-objdump () {
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arm-none-eabi-objdump -Drz -bbinary -m$proc $thumb --adjust-vma="$vma" --start-address="$start" --stop-address=$((start+size)) "$1"
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}
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cmp -s "$basefile" "$buildfile" || diff -u <(do-objdump "$basefile") <(do-objdump "$buildfile")
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