mirror of https://github.com/dynup/kpatch
kpatch-build: revert previous module building interface
Revert the previous kpatch-build module building interface commits to prepare for a completely different approach which builds vmlinux and all the modules in a single pass. This reverts commitfac9d70612. This reverts commitd166fb4379.
This commit is contained in:
Josh Poimboeuf
parent
fc722bc438
commit
5b2bd03a3b
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@ -90,10 +90,9 @@ usage() {
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echo " -c, --config Specify kernel config file" >&2
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echo " -v, --vmlinux Specify original vmlinux" >&2
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echo " -d, --debug Keep scratch files in /tmp" >&2
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echo " -t, --targets File containing the list of kernel make targets to examine" >&2
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}
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options=$(getopt -o hr:s:c:v:t:d -l "help,sourcerpm:,sourcedir:,config:,vmlinux:,targets:,debug" -- "$@") || die "getopt failed"
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options=$(getopt -o hr:s:c:v:d -l "help,sourcerpm:,sourcedir:,config:,vmlinux:,debug" -- "$@") || die "getopt failed"
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eval set -- "$options"
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@ -131,11 +130,6 @@ while [[ $# -gt 0 ]]; do
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DEBUG=1
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set -o xtrace
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;;
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-t|--targets)
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TARGETSFILE=$(readlink -f "$2")
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shift
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[[ ! -f "$TARGETSFILE" ]] && die "targets file $TARGETSFILE not found"
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;;
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--)
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if [[ -z "$2" ]]; then
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echo "ERROR: no patch file specified" >&2
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@ -150,12 +144,6 @@ while [[ $# -gt 0 ]]; do
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shift
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done
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if [[ -z $TARGETSFILE ]]; then
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TARGETS="vmlinux"
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else
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TARGETS="$(cat $TARGETSFILE)"
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fi
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SRCDIR="$CACHEDIR/src"
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OBJDIR="$CACHEDIR/obj"
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OBJDIR2="$CACHEDIR/obj2"
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@ -278,87 +266,63 @@ fi
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echo "Testing patch file"
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cd "$SRCDIR" || die
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patch -N -p1 --dry-run < "$PATCHFILE" || die "source patch file failed to apply"
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cp "$PATCHFILE" "$APPLIEDPATCHFILE" || die
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echo "Building original kernel"
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make mrproper >> "$LOGFILE" 2>&1 || die
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make "-j$CPUS" vmlinux "O=$OBJDIR" >> "$LOGFILE" 2>&1 || die
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cp -LR "$DATADIR/patch" "$TEMPDIR" || die
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for TARGET in $TARGETS; do # START target loop
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TARGETNAME=$(basename $TARGET)
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TEMPDIR="$TEMPDIR/$TARGETNAME"
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mkdir -p "$TEMPDIR"
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make "O=$OBJDIR" clean >> "$LOGFILE" 2>&1 || die
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echo "Building original $TARGETNAME"
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make mrproper >> "$LOGFILE" 2>&1 || die
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make "-j$CPUS" $TARGET "O=$OBJDIR" >> "$LOGFILE" 2>&1 || die
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echo "Building patched kernel"
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patch -N -p1 < "$APPLIEDPATCHFILE" >> "$LOGFILE" 2>&1 || die
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make "-j$CPUS" vmlinux "O=$OBJDIR" 2>&1 | tee -a "$TEMPDIR/patched_build.log" >> "$LOGFILE"
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[[ "${PIPESTATUS[0]}" -eq 0 ]] || die
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echo "Building patched $TARGETNAME"
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cp "$PATCHFILE" "$APPLIEDPATCHFILE" || die
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patch -N -p1 < "$APPLIEDPATCHFILE" >> "$LOGFILE" 2>&1 || die
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make "-j$CPUS" $TARGET "O=$OBJDIR" 2>&1 | tee -a "$TEMPDIR/patched_build.log" >> "$LOGFILE"
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echo "Detecting changed objects"
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grep CC "$TEMPDIR/patched_build.log" | grep -v -e init/version.o -e scripts/mod/devicetable-offsets.s -e scripts/mod/file2alias.o | awk '{print $2}' > "$TEMPDIR/changed_objs"
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[[ ! -s "$TEMPDIR/changed_objs" ]] && die "no changed objects were detected"
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grep -q asm-offsets.s $TEMPDIR/changed_objs && die "a struct definition change was detected"
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echo "Rebuilding changed objects"
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rm -rf "$OBJDIR2"
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mkdir -p "$OBJDIR2"
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cp "$OBJDIR/.config" "$OBJDIR2" || die
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mkdir "$TEMPDIR/patched"
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for i in $(cat $TEMPDIR/changed_objs); do
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KCFLAGS="-ffunction-sections -fdata-sections" make "$i" "O=$OBJDIR2" >> "$LOGFILE" 2>&1 || die
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$STRIPCMD "$OBJDIR2/$i" >> "$LOGFILE" 2>&1 || die
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mkdir -p "$TEMPDIR/patched/$(dirname $i)"
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cp -f "$OBJDIR2/$i" "$TEMPDIR/patched/$i" || die
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done
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patch -R -p1 < "$APPLIEDPATCHFILE" >> "$LOGFILE" 2>&1
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rm -f "$APPLIEDPATCHFILE"
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mkdir "$TEMPDIR/orig"
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for i in $(cat $TEMPDIR/changed_objs); do
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rm -f "$i"
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KCFLAGS="-ffunction-sections -fdata-sections" make "$i" "O=$OBJDIR2" >> "$LOGFILE" 2>&1 || die
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$STRIPCMD -d "$OBJDIR2/$i" >> "$LOGFILE" 2>&1 || die
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mkdir -p "$TEMPDIR/orig/$(dirname $i)"
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cp -f "$OBJDIR2/$i" "$TEMPDIR/orig/$i" || die
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done
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echo "Extracting new and modified ELF sections"
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cd "$TEMPDIR/orig"
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FILES="$(find * -type f)"
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cd "$TEMPDIR"
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mkdir output
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for i in $FILES; do
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mkdir -p "output/$(dirname $i)"
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"$TOOLSDIR"/create-diff-object "orig/$i" "patched/$i" "$VMLINUX" "output/$i" 2>&1 |tee -a "$LOGFILE"
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[[ "${PIPESTATUS[0]}" -eq 0 ]] || die
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echo "Detecting changed objects"
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grep CC "$TEMPDIR/patched_build.log" | grep -v -e init/version.o -e scripts/mod/devicetable-offsets.s -e scripts/mod/file2alias.o > "$TEMPDIR/tmp"
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while read FILE; do
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if [[ $TARGET = "vmlinux" ]]; then
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echo $FILE | awk '{print $2}' >> "$TEMPDIR/changed_objs"
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else
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echo $FILE | awk '{print $3}' >> "$TEMPDIR/changed_objs"
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fi
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done < "$TEMPDIR/tmp"
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[[ ! -s "$TEMPDIR/changed_objs" ]] && die "no changed objects were detected"
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grep -q asm-offsets.s $TEMPDIR/changed_objs && die "a struct definition change was detected"
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echo "Rebuilding changed objects"
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rm -rf "$OBJDIR2"
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mkdir -p "$OBJDIR2"
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cp "$OBJDIR/.config" "$OBJDIR2" || die
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mkdir "$TEMPDIR/patched"
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for i in $(cat $TEMPDIR/changed_objs); do
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KCFLAGS="-ffunction-sections -fdata-sections" make "$i" "O=$OBJDIR2" >> "$LOGFILE" 2>&1 || die
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$STRIPCMD "$OBJDIR2/$i" >> "$LOGFILE" 2>&1 || die
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mkdir -p "$TEMPDIR/patched/$(dirname $i)"
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cp -f "$OBJDIR2/$i" "$TEMPDIR/patched/$i" || die
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done
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patch -R -p1 < "$APPLIEDPATCHFILE" >> "$LOGFILE" 2>&1
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rm -f "$APPLIEDPATCHFILE"
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mkdir "$TEMPDIR/orig"
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for i in $(cat $TEMPDIR/changed_objs); do
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rm -f "$i"
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KCFLAGS="-ffunction-sections -fdata-sections" make "$i" "O=$OBJDIR2" >> "$LOGFILE" 2>&1 || die
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$STRIPCMD -d "$OBJDIR2/$i" >> "$LOGFILE" 2>&1 || die
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mkdir -p "$TEMPDIR/orig/$(dirname $i)"
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cp -f "$OBJDIR2/$i" "$TEMPDIR/orig/$i" || die
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done
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echo "Extracting new and modified ELF sections"
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cd "$TEMPDIR/orig"
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FILES="$(find * -type f)"
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cd "$TEMPDIR"
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mkdir output
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if [[ $TARGET = "vmlinux" ]]; then
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KOBJFILE=$VMLINUX
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else
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KOBJFILE="/lib/modules/$ARCHVERSION/kernel/$TARGET"
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[[ -e "$KOBJFILE" ]] || die "module not found at $KOBJFILE. Ensure kernel package is installed."
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fi
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for i in $FILES; do
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mkdir -p "output/$(dirname $i)"
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"$TOOLSDIR"/create-diff-object "orig/$i" "patched/$i" "$KOBJFILE" "output/$i" 2>&1 |tee -a "$LOGFILE"
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[[ "${PIPESTATUS[0]}" -eq 0 ]] || die
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done
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cd output
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ld -r -o $TEMPDIR/output.o $FILES >> "$LOGFILE" 2>&1 || die
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TEMPDIR=$(dirname $TEMPDIR)
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cd "$SRCDIR"
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done # END target loop
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done
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echo "Building patch module: kpatch-$PATCHNAME.ko"
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cp "$OBJDIR/.config" "$SRCDIR"
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cd "$SRCDIR"
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make prepare >> "$LOGFILE" 2>&1 || die
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cd "$TEMPDIR"
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ld -r -o patch/output.o $(ls */output.o) >> "$LOGFILE" 2>&1 || die
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cd "$TEMPDIR/output"
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ld -r -o ../patch/output.o $FILES >> "$LOGFILE" 2>&1 || die
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cd "$TEMPDIR/patch"
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KPATCH_BUILD="$SRCDIR" KPATCH_NAME="$PATCHNAME" KBUILD_EXTRA_SYMBOLS="$SYMVERSFILE" make "O=$OBJDIR" >> "$LOGFILE" 2>&1 || die
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$STRIPCMD "kpatch-$PATCHNAME.ko" >> "$LOGFILE" 2>&1 || die
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