add find_debuginfo.sh

modify spec cp find_debuginfo.sh to /usr/lib/rpm/

Change-Id: I44fdb00ebaef743f7c43032026715140fc33669b
Signed-off-by: shuai.fu <shuai01.fu@samsung.com>

2 files changed, 471 insertions, 1 deletions

diff --git a/find-debuginfo.sh b/find-debuginfo.sh
new file mode 100755
index 000000000..bb8a3693a
--- /dev/null
+++ b/find-debuginfo.sh
@@ -0,0 +1,470 @@
+#!/bin/bash
+#find-debuginfo.sh - automagically generate debug info and file list
+#for inclusion in an rpm spec file.
+#
+# Usage: find-debuginfo.sh [--strict-build-id] [-g] [-r] [-m]
+#	 		   [-o debugfiles.list]
+#			   [--run-dwz] [--dwz-low-mem-die-limit N]
+#			   [--dwz-max-die-limit N]
+#			   [[-l filelist]... [-p 'pattern'] -o debuginfo.list]
+#			   [builddir]
+#
+# The -g flag says to use strip -g instead of full strip on DSOs or EXEs.
+# The --strict-build-id flag says to exit with failure status if
+# any ELF binary processed fails to contain a build-id note.
+# The -r flag says to use eu-strip --reloc-debug-sections.
+#
+# A single -o switch before any -l or -p switches simply renames
+# the primary output file from debugfiles.list to something else.
+# A -o switch that follows a -p switch or some -l switches produces
+# an additional output file with the debuginfo for the files in
+# the -l filelist file, or whose names match the -p pattern.
+# The -p argument is an grep -E -style regexp matching the a file name,
+# and must not use anchors (^ or $).
+#
+# The --run-dwz flag instructs find-debuginfo.sh to run the dwz utility
+# if available, and --dwz-low-mem-die-limit and --dwz-max-die-limit
+# provide detailed limits.  See dwz(1) -l and -L option for details.
+#
+# All file names in switches are relative to builddir (. if not given).
+#
+
+# With -g arg, pass it to strip on libraries or executables.
+strip_g=false
+
+# with -r arg, pass --reloc-debug-sections to eu-strip.
+strip_r=false
+
+# with -m arg, add minimal debuginfo to binary.
+include_minidebug=false
+
+# Barf on missing build IDs.
+strict=false
+
+# DWZ parameters.
+run_dwz=false
+dwz_low_mem_die_limit=
+dwz_max_die_limit=
+
+BUILDDIR=.
+out=debugfiles.list
+nout=0
+while [ $# -gt 0 ]; do
+  case "$1" in
+  --strict-build-id)
+    strict=true
+    ;;
+  --run-dwz)
+    run_dwz=true
+    ;;
+  --dwz-low-mem-die-limit)
+    dwz_low_mem_die_limit=$2
+    shift
+    ;;
+  --dwz-max-die-limit)
+    dwz_max_die_limit=$2
+    shift
+    ;;
+  -g)
+    strip_g=true
+    ;;
+  -m)
+    include_minidebug=true
+    ;;
+  -o)
+    if [ -z "${lists[$nout]}" -a -z "${ptns[$nout]}" ]; then
+      out=$2
+    else
+      outs[$nout]=$2
+      ((nout++))
+    fi
+    shift
+    ;;
+  -l)
+    lists[$nout]="${lists[$nout]} $2"
+    shift
+    ;;
+  -p)
+    ptns[$nout]=$2
+    shift
+    ;;
+  -r)
+    strip_r=true
+    ;;
+  *)
+    BUILDDIR=$1
+    shift
+    break
+    ;;
+  esac
+  shift
+done
+
+i=0
+while ((i < nout)); do
+  outs[$i]="$BUILDDIR/${outs[$i]}"
+  l=''
+  for f in ${lists[$i]}; do
+    l="$l $BUILDDIR/$f"
+  done
+  lists[$i]=$l
+  ((++i))
+done
+
+LISTFILE="$BUILDDIR/$out"
+SOURCEFILE="$BUILDDIR/debugsources.list"
+LINKSFILE="$BUILDDIR/debuglinks.list"
+ELFBINSFILE="$BUILDDIR/elfbins.list"
+
+echo "/usr" > "$SOURCEFILE"
+echo "/usr" > "$LISTFILE"
+echo "/usr" > "$LINKSFILE"
+echo "/usr" > "$ELFBINSFILE"
+
+debugdir="${RPM_BUILD_ROOT}/usr/lib/debug"
+
+strip_to_debug()
+{
+  local g=
+  local r=
+  $strip_r && r=--reloc-debug-sections
+  $strip_g && case "$(file -bi "$2")" in
+  application/x-sharedlib*) g=-g ;;
+  application/x-executable*) g=-g ;;
+  esac
+  eu-strip --remove-comment $r $g -f "$1" "$2" || exit
+  chmod 444 "$1" || exit
+}
+
+add_minidebug()
+{
+  local debuginfo="$1"
+  local binary="$2"
+
+  local dynsyms=`mktemp`
+  local funcsyms=`mktemp`
+  local keep_symbols=`mktemp`
+  local mini_debuginfo=`mktemp`
+
+  # Extract the dynamic symbols from the main binary, there is no need to also have these
+  # in the normal symbol table
+  nm -D "$binary" --format=posix --defined-only | awk '{ print $1 }' | sort > "$dynsyms"
+  # Extract all the text (i.e. function) symbols from the debuginfo 
+  nm "$debuginfo" --format=posix --defined-only | awk '{ if ($2 == "T" || $2 == "t") print $1 }' | sort > "$funcsyms"
+  # Keep all the function symbols not already in the dynamic symbol table
+  comm -13 "$dynsyms" "$funcsyms" > "$keep_symbols"
+  # Copy the full debuginfo, keeping only a minumal set of symbols and removing some unnecessary sections
+  objcopy -S --remove-section .gdb_index --remove-section .comment --keep-symbols="$keep_symbols" "$debuginfo" "$mini_debuginfo" &> /dev/null
+  #Inject the compressed data into the .gnu_debugdata section of the original binary
+  xz "$mini_debuginfo"
+  mini_debuginfo="${mini_debuginfo}.xz"
+  objcopy --add-section .gnu_debugdata="$mini_debuginfo" "$binary"
+  rm -f "$dynsyms" "$funcsyms" "$keep_symbols" "$mini_debuginfo"
+}
+
+# Make a relative symlink to $1 called $3$2
+shopt -s extglob
+link_relative()
+{
+  local t="$1" f="$2" pfx="$3"
+  local fn="${f#/}" tn="${t#/}"
+  local fd td d
+
+  while fd="${fn%%/*}"; td="${tn%%/*}"; [ "$fd" = "$td" ]; do
+    fn="${fn#*/}"
+    tn="${tn#*/}"
+  done
+
+  d="${fn%/*}"
+  if [ "$d" != "$fn" ]; then
+    d="${d//+([!\/])/..}"
+    tn="${d}/${tn}"
+  fi
+
+  mkdir -p "$(dirname "$pfx$f")" && ln -snf "$tn" "$pfx$f"
+}
+
+# Make a symlink in /usr/lib/debug/$2 to $1
+debug_link()
+{
+  local l="/usr/lib/debug$2"
+  local t="$1"
+  echo >> "$LINKSFILE" "$l $t"
+  link_relative "$t" "$l" "$RPM_BUILD_ROOT"
+}
+
+# Provide .2, .3, ... symlinks to all filename instances of this build-id.
+make_id_dup_link()
+{
+  local id="$1" file="$2" idfile
+
+  local n=1
+  while true; do
+    idfile=".build-id/${id:0:2}/${id:2}.$n"
+    [ $# -eq 3 ] && idfile="${idfile}$3"
+    if [ ! -L "$RPM_BUILD_ROOT/usr/lib/debug/$idfile" ]; then
+      break
+    fi
+    n=$[$n+1]
+  done
+  debug_link "$file" "/$idfile"
+}
+
+# Make a build-id symlink for id $1 with suffix $3 to file $2.
+make_id_link()
+{
+  local id="$1" file="$2"
+  local idfile=".build-id/${id:0:2}/${id:2}"
+  [ $# -eq 3 ] && idfile="${idfile}$3"
+  local root_idfile="$RPM_BUILD_ROOT/usr/lib/debug/$idfile"
+
+  if [ ! -L "$root_idfile" ]; then
+    debug_link "$file" "/$idfile"
+    return
+  fi
+
+  make_id_dup_link "$@"
+
+  [ $# -eq 3 ] && return 0
+
+  local other=$(readlink -m "$root_idfile")
+  other=${other#$RPM_BUILD_ROOT}
+  if cmp -s "$root_idfile" "$RPM_BUILD_ROOT$file" ||
+     eu-elfcmp -q "$root_idfile" "$RPM_BUILD_ROOT$file" 2> /dev/null; then
+    # Two copies.  Maybe one has to be setuid or something.
+    echo >&2 "*** WARNING: identical binaries are copied, not linked:"
+    echo >&2 "        $file"
+    echo >&2 "   and  $other"
+  else
+    # This is pathological, break the build.
+    echo >&2 "*** ERROR: same build ID in nonidentical files!"
+    echo >&2 "        $file"
+    echo >&2 "   and  $other"
+    exit 2
+  fi
+}
+
+get_debugfn()
+{
+  dn=$(dirname "${1#$RPM_BUILD_ROOT}")
+  bn=$(basename "$1" .debug).debug
+
+  debugdn=${debugdir}${dn}
+  debugfn=${debugdn}/${bn}
+}
+
+set -o pipefail
+
+strict_error=ERROR
+$strict || strict_error=WARNING
+
+# Strip ELF binaries
+find "$RPM_BUILD_ROOT" ! -path "${debugdir}/*.debug" -type f \
+     		     \( -perm -0100 -or -perm -0010 -or -perm -0001 \) \
+		     -print |
+file -N -f - | sed -n -e 's/^\(.*\):[ 	]*.*ELF.*, not stripped.*/\1/p' |
+xargs --no-run-if-empty stat -c '%h %D_%i %n' |
+while read nlinks inum f; do
+  get_debugfn "$f"
+  [ -f "${debugfn}" ] && continue
+
+  # If this file has multiple links, keep track and make
+  # the corresponding .debug files all links to one file too.
+  if [ $nlinks -gt 1 ]; then
+    eval linked=\$linked_$inum
+    if [ -n "$linked" ]; then
+      eval id=\$linkedid_$inum
+      make_id_dup_link "$id" "$dn/$(basename $f)"
+      make_id_dup_link "$id" "/usr/lib/debug$dn/$bn" .debug
+      link=$debugfn
+      get_debugfn "$linked"
+      echo "hard linked $link to $debugfn"
+      mkdir -p "$(dirname "$link")" && ln -nf "$debugfn" "$link"
+      continue
+    else
+      eval linked_$inum=\$f
+      echo "file $f has $[$nlinks - 1] other hard links"
+    fi
+  fi
+
+  echo "extracting debug info from $f"
+  id=$(/usr/lib/rpm/debugedit -b "$RPM_BUILD_DIR" -d /usr/src/debug \
+			      -i -l "$SOURCEFILE" "$f") || exit
+  if [ $nlinks -gt 1 ]; then
+    eval linkedid_$inum=\$id
+  fi
+  if [ -z "$id" ]; then
+    echo >&2 "*** ${strict_error}: No build ID note found in $f"
+    $strict && exit 2
+  fi
+
+  [ -x /usr/bin/gdb-add-index ] && /usr/bin/gdb-add-index "$f" > /dev/null 2>&1
+
+  # A binary already copied into /usr/lib/debug doesn't get stripped,
+  # just has its file names collected and adjusted.
+  case "$dn" in
+  /usr/lib/debug/*)
+    [ -z "$id" ] || make_id_link "$id" "$dn/$(basename $f)"
+    continue ;;
+  esac
+
+  mkdir -p "${debugdn}"
+  if test -w "$f"; then
+    strip_to_debug "${debugfn}" "$f"
+  else
+    chmod u+w "$f"
+    strip_to_debug "${debugfn}" "$f"
+    chmod u-w "$f"
+  fi
+
+  # strip -g implies we have full symtab, don't add mini symtab in that case.
+  $strip_g || ($include_minidebug && add_minidebug "${debugfn}" "$f")
+
+  echo "./${f#$RPM_BUILD_ROOT}" >> "$ELFBINSFILE"
+  
+  if [ -n "$id" ]; then
+    make_id_link "$id" "$dn/$(basename $f)"
+    make_id_link "$id" "/usr/lib/debug$dn/$bn" .debug
+  fi
+done || exit
+
+# Invoke the DWARF Compressor utility.
+if $run_dwz && type dwz >/dev/null 2>&1 \
+   && [ -d "${RPM_BUILD_ROOT}/usr/lib/debug" ]; then
+  dwz_files="`cd "${RPM_BUILD_ROOT}/usr/lib/debug"; find -type f -name \*.debug`"
+  if [ -n "${dwz_files}" ]; then
+    dwz_multifile_name="${RPM_PACKAGE_NAME}-${RPM_PACKAGE_VERSION}-${RPM_PACKAGE_RELEASE}.${RPM_ARCH}"
+    dwz_multifile_suffix=
+    dwz_multifile_idx=0
+    while [ -f "${RPM_BUILD_ROOT}/usr/lib/debug/.dwz/${dwz_multifile_name}${dwz_multifile_suffix}" ]; do
+      let ++dwz_multifile_idx
+      dwz_multifile_suffix=".${dwz_multifile_idx}"
+    done
+    dwz_multfile_name="${dwz_multifile_name}${dwz_multifile_suffix}"
+    dwz_opts="-h -q -r -m .dwz/${dwz_multifile_name}"
+    mkdir -p "${RPM_BUILD_ROOT}/usr/lib/debug/.dwz"
+    [ -n "${dwz_low_mem_die_limit}" ] \
+      && dwz_opts="${dwz_opts} -l ${dwz_low_mem_die_limit}"
+    [ -n "${dwz_max_die_limit}" ] \
+      && dwz_opts="${dwz_opts} -L ${dwz_max_die_limit}"
+    ( cd "${RPM_BUILD_ROOT}/usr/lib/debug" && dwz $dwz_opts $dwz_files )
+    # Remove .dwz directory if empty
+    rmdir "${RPM_BUILD_ROOT}/usr/lib/debug/.dwz" 2>/dev/null
+    if [ -f "${RPM_BUILD_ROOT}/usr/lib/debug/.dwz/${dwz_multifile_name}" ]; then
+      id="`readelf -Wn "${RPM_BUILD_ROOT}/usr/lib/debug/.dwz/${dwz_multifile_name}" \
+	     2>/dev/null | sed -n 's/^    Build ID: \([0-9a-f]\+\)/\1/p'`"
+      [ -n "$id" ] \
+	&& make_id_link "$id" "/usr/lib/debug/.dwz/${dwz_multifile_name}" .debug
+    fi
+  fi
+fi
+
+# dwz invalidates .gnu_debuglink CRC32 in the main files.
+cat "$ELFBINSFILE" |
+(cd "$RPM_BUILD_ROOT"; xargs -d '\n' /usr/lib/rpm/sepdebugcrcfix usr/lib/debug)
+
+# For each symlink whose target has a .debug file,
+# make a .debug symlink to that file.
+find "$RPM_BUILD_ROOT" ! -path "${debugdir}/*" -type l -print |
+while read f
+do
+  t=$(readlink -m "$f").debug
+  f=${f#$RPM_BUILD_ROOT}
+  t=${t#$RPM_BUILD_ROOT}
+  if [ -f "$debugdir$t" ]; then
+    echo "symlinked /usr/lib/debug$t to /usr/lib/debug${f}.debug"
+    debug_link "/usr/lib/debug$t" "${f}.debug"
+  fi
+done
+
+if [ -s "$SOURCEFILE" ]; then
+  mkdir -p "${RPM_BUILD_ROOT}/usr/src/debug"
+  LC_ALL=C sort -z -u "$SOURCEFILE" | grep -E -v -z '(<internal>|<built-in>)$' |
+  (cd "$RPM_BUILD_DIR"; cpio -pd0mL "${RPM_BUILD_ROOT}/usr/src/debug")
+  # stupid cpio creates new directories in mode 0700, fixup
+  find "${RPM_BUILD_ROOT}/usr/src/debug" -type d -print0 |
+  xargs --no-run-if-empty -0 chmod a+rx
+fi
+
+if [ -d "${RPM_BUILD_ROOT}/usr/lib" -o -d "${RPM_BUILD_ROOT}/usr/src" ]; then
+  ((nout > 0)) ||
+  test ! -d "${RPM_BUILD_ROOT}/usr/lib" ||
+  (cd "${RPM_BUILD_ROOT}/usr/lib"; find debug -type d) |
+  sed 's,^,%dir /usr/lib/,' >> "$LISTFILE"
+
+  (cd "${RPM_BUILD_ROOT}/usr"
+   test ! -d lib/debug || find lib/debug ! -type d
+   test ! -d src/debug || find src/debug -mindepth 1 -maxdepth 1
+  ) | sed 's,^,/usr/,' >> "$LISTFILE"
+fi
+
+# Append to $1 only the lines from stdin not already in the file.
+append_uniq()
+{
+  grep -F -f "$1" -x -v >> "$1"
+}
+
+# Helper to generate list of corresponding .debug files from a file list.
+filelist_debugfiles()
+{
+  local extra="$1"
+  shift
+  sed 's/^%[a-z0-9_][a-z0-9_]*([^)]*) *//
+s/^%[a-z0-9_][a-z0-9_]* *//
+/^$/d
+'"$extra" "$@"
+}
+
+# Write an output debuginfo file list based on given input file lists.
+filtered_list()
+{
+  local out="$1"
+  shift
+  test $# -gt 0 || return
+  grep -F -f <(filelist_debugfiles 's,^.*$,/usr/lib/debug&.debug,' "$@") \
+  	-x $LISTFILE >> $out
+  sed -n -f <(filelist_debugfiles 's/[\\.*+#]/\\&/g
+h
+s,^.*$,s# &$##p,p
+g
+s,^.*$,s# /usr/lib/debug&.debug$##p,p
+' "$@") "$LINKSFILE" | append_uniq "$out"
+}
+
+# Write an output debuginfo file list based on an grep -E -style regexp.
+pattern_list()
+{
+  local out="$1" ptn="$2"
+  test -n "$ptn" || return
+  grep -E -x -e "$ptn" "$LISTFILE" >> "$out"
+  sed -n -r "\#^$ptn #s/ .*\$//p" "$LINKSFILE" | append_uniq "$out"
+}
+
+#
+# When given multiple -o switches, split up the output as directed.
+#
+i=0
+while ((i < nout)); do
+  > ${outs[$i]}
+  filtered_list ${outs[$i]} ${lists[$i]}
+  pattern_list ${outs[$i]} "${ptns[$i]}"
+  grep -Fvx -f ${outs[$i]} "$LISTFILE" > "${LISTFILE}.new"
+  mv "${LISTFILE}.new" "$LISTFILE"
+  ((++i))
+done
+if ((nout > 0)); then
+  # Now add the right %dir lines to each output list.
+  (cd "${RPM_BUILD_ROOT}"; find usr/lib/debug -type d) |
+  sed 's#^.*$#\\@^/&/@{h;s@^.*$@%dir /&@p;g;}#' |
+  LC_ALL=C sort -ur > "${LISTFILE}.dirs.sed"
+  i=0
+  while ((i < nout)); do
+    sed -n -f "${LISTFILE}.dirs.sed" "${outs[$i]}" | sort -u > "${outs[$i]}.new"
+    cat "${outs[$i]}" >> "${outs[$i]}.new"
+    mv -f "${outs[$i]}.new" "${outs[$i]}"
+    ((++i))
+  done
+  sed -n -f "${LISTFILE}.dirs.sed" "${LISTFILE}" | sort -u > "${LISTFILE}.new"
+  cat "$LISTFILE" >> "${LISTFILE}.new"
+  mv "${LISTFILE}.new" "$LISTFILE"
+fi
diff --git a/packaging/qemu-arm-static.spec b/packaging/qemu-arm-static.spec
index 5328bc376..554a1fdfd 100644
--- a/packaging/qemu-arm-static.spec
+++ b/packaging/qemu-arm-static.spec
@@ -81,7 +81,7 @@ export LDFLAGS="-lrt -pthread -lgthread-2.0 -lglib-2.0"
 # -lrt needs to come after -lglib-2.0 to avoid undefined mq_open, mq_xxx
 sed -i "s/-lglib-2.0/-lglib-2.0 -lrt/" config-host.mak
 %endif
-
+cp -f find-debuginfo.sh /usr/lib/rpm/find-debuginfo.sh
 make %{?jobs:-j%jobs} V=1
 
 %install