X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=scripts%2Ffind-debuginfo.sh;h=c73f06bf0c9432f999174a40f13c5efe11a43cb0;hb=HEAD;hp=33776899d72530a84a67eb5fb48f00acecd14893;hpb=90b34cd4e51de9b69a1a1e4bf58fcee31c2bf192;p=platform%2Fupstream%2Frpm.git

diff --git a/scripts/find-debuginfo.sh b/scripts/find-debuginfo.sh
index 3377689..aac635d 100644
--- a/scripts/find-debuginfo.sh
+++ b/scripts/find-debuginfo.sh
@@ -1,17 +1,468 @@
-#!/bin/sh
+#!/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] [--strip-disable] [--strip-option] [-g] [-r]
+#	 		   [-o debugfiles.list]
+#			   [[-l filelist]... [-p 'pattern'] -o debuginfo.list]
+#			   [builddir]
+#
+# The -g flag says to use strip -g instead of full strip on DSOs.
+# 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 $).
+#
+# All file names in switches are relative to builddir (. if not given).
+#
 
-LISTFILE=debugfiles.list
+# With -g arg, pass it to strip on libraries.
+strip_g=false
 
-# Strip ELF binaries
-for f in `find $RPM_BUILD_ROOT -type f \( -perm -0100 -or -perm -0010 -or -perm -0001 \) -exec file {} \; | \
-	sed -n -e 's/^\(.*\):[ 	]*ELF.*, not stripped/\1/p'`; do
-	BASEDIR=`dirname $f | sed -n -e "s#^$RPM_BUILD_ROOT#/#p"`
-	OUTPUTDIR=${RPM_BUILD_ROOT}/usr/lib/debug${BASEDIR}
-	mkdir -p ${OUTPUTDIR}
-	echo extracting debug info from $f
-	striptofile -g -u -o $OUTPUTDIR $f || :
+# with -r arg, pass --reloc-debug-sections to eu-strip.
+strip_r=false
+
+# Barf on missing build IDs.
+strict=false
+
+# With --strip-disable arg, no strip
+strip_disable=false
+
+# With --strip-option arg, this will be used as arg. of eu-strip
+strip_option=
+
+BUILDDIR=.
+out=debugfiles.list
+nout=0
+while [ $# -gt 0 ]; do
+  case "$1" in
+  --strict-build-id)
+    strict=true
+    ;;
+  --strip-disable)
+    strip_disable=true
+    ;;
+  *--strip-option*)
+    strip_option=$(echo $1 | sed 's/--strip-option=//')
+    ;;
+  -g)
+    strip_g=true
+    ;;
+  -o)
+    if [ -z "${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
 
-find ${RPM_BUILD_ROOT}/usr/lib/debug -type f | sed -n -e "s#^$RPM_BUILD_ROOT#/#p" > $LISTFILE
+i=0
+while ((i < nout)); do
+  outs[$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"
+
+> "$SOURCEFILE"
+> "$LISTFILE"
+> "$LINKSFILE"
+
+debugdir="${RPM_BUILD_ROOT}/usr/lib/debug"
+
+strip_to_debug()
+{
+  local g=
+  local r=
+
+  if test "$strip_disable" = true ; then
+      exit
+  fi
+
+  $strip_r && r=--reloc-debug-sections
+  $strip_g && case "$(file -bi "$2")" in
+  application/x-sharedlib*) g=-g ;;
+  esac
+
+  case $2 in
+      *.ko)
+          # don't attempt to create a minimal backtrace binary for
+          # kernel modules as this just causes the stripping process
+          # to be skipped entirely
+          eu-strip --remove-comment $r $strip_option -f "$1" "$2" || exit
+          ;;
+      *)
+          strip --remove-section=.comment  $g $strip_option -o "$1" "$2" || exit
+  esac
+  chmod 444 "$1" || exit
+}
+
+# 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"
+
+  # this should correspond to what brp-symlink is doing
+  case $t in
+      /usr*)
+          link_relative "$t" "$l" "$RPM_BUILD_ROOT"
+          ;;
+      *)
+          if [ ! -e $t ]; then
+              link_relative "$t" "$l" "$RPM_BUILD_ROOT"
+          else
+              mkdir -p "$(dirname "$RPM_BUILD_ROOT$l")" && \
+                  ln -snf "$t" "$RPM_BUILD_ROOT$l"
+          fi
+          ;;
+  esac
+}
+
+# Provide .2, .3, ... symlinks to all filename instances of this build-id.
+make_id_dup_link()
+{
+  # See https://bugzilla.redhat.com/show_bug.cgi?id=641377 for the reasoning, 
+  # but it has seveal drawbacks as we would need to split the .1 suffixes into 
+  # different subpackages and it's about impossible to predict the number
+  # -> perhaps later
+  return
+  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" "/$idfile"
+}
+
+# Compare two binaries but ignore the .note.gnu.build-id section
+elfcmp()
+{
+  local tmp1=$(mktemp -t ${1##*/}.XXXXXX)
+  local tmp2=$(mktemp -t ${2##*/}.XXXXXX)
+
+  objcopy -R .note.gnu.build-id -R .gnu_debuglink $1 $tmp1
+  objcopy -R .note.gnu.build-id -R .gnu_debuglink $2 $tmp2
+  cmp -s $tmp1 $tmp2
+  local res=$?
+  rm -f $tmp1 $tmp2
+  return $res
+}
+
+# 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#$RPM_BUILD_ROOT}
+  if cmp -s "$RPM_BUILD_ROOT$other" "$RPM_BUILD_ROOT$file" ||
+     elfcmp "$RPM_BUILD_ROOT$other" "$RPM_BUILD_ROOT$file" ; 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}")
+# Do not strip existing .debug suffixes
+  bn=$(basename "$1").debug
+
+  debugdn=${debugdir}${dn}
+  debugfn=${debugdn}/${bn}
+}
+
+set -o pipefail
+
+strict_error=ERROR
+$strict || strict_error=WARNING
+
+# Strip ELF binaries (and no static libraries)
+find $RPM_BUILD_ROOT ! -path "${debugdir}/*.debug" -type f \( -perm /111 -or -name "*.so*" -or -name "*.ko" \) ! -name "*.a" -print0 | sort -z |
+xargs --no-run-if-empty -0 stat -c '%h %D_%i %n' |
+while read nlinks inum f; do
+  case $(objdump -h $f 2>/dev/null | egrep -o '(debug[\.a-z_]*|gnu.version)') in
+    *debuglink*) continue ;;
+    *debug*) ;;
+    *gnu.version*)
+	echo "WARNING: "`echo $f | sed -e "s,^$RPM_BUILD_ROOT/*,/,"`" is already stripped!"
+	continue
+	;;
+    *) continue ;;
+  esac
+  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 $f"
+  id=$($(DEBUGEDIT=$(which debugedit 2>/dev/null); \
+      echo ${DEBUGEDIT:-/usr/lib/rpm/debugedit}) -b "$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 [ -e "${BUILDDIR}/Kconfig" ] ; then
+      mode=$(stat -c %a "$f")
+      chmod +w "$f"
+      objcopy --only-keep-debug $f $debugfn || :
+      (
+	  shopt -s extglob
+	  strip_option="--strip-all"
+	  case "$f" in
+	      *.ko)
+		  strip_option="--strip-debug" ;;
+	      *$STRIP_KEEP_SYMTAB*)
+		  if test -n "$STRIP_KEEP_SYMTAB"; then
+		      strip_option="--strip-debug"
+		  fi
+		  ;;
+	  esac
+	  if test "$NO_DEBUGINFO_STRIP_DEBUG" = true ; then
+	      strip_option=
+	  fi
+          if test "$strip_disable" = true ; then
+              strip_option=
+          fi
+	  objcopy --add-gnu-debuglink=$debugfn -R .comment -R .GCC.command.line $strip_option $f
+	  chmod $mode $f
+      ) || :
+  else
+      if test -w "$f"; then
+	  strip_to_debug "${debugfn}" "$f"
+      else
+	  chmod u+w "$f"
+	  strip_to_debug "${debugfn}" "$f"
+	  chmod u-w "$f"
+      fi
+  fi
+
+  if [ -n "$id" ]; then
+    make_id_link "$id" "$dn/$(basename $f)"
+    make_id_link "$id" "/usr/lib/debug$dn/$bn" .debug
+  fi
+done || exit
+
+# We used to make a .debug symlink for each symlink whose target
+# has a .debug file to that file.  This is not necessary because
+# the debuglink section contains only the destination of those links.
+# Creating those links anyway results in debuginfo packages for
+# devel packages just because of the .so symlinks in them.
+
+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 "${RPM_BUILD_ROOT}/usr/src/debug" -type d -print0 |
+  xargs --no-run-if-empty -0 chmod a+rx
+  find "${RPM_BUILD_ROOT}/usr/src/debug" -type f -print0 |
+  xargs --no-run-if-empty -0 chmod a+r
+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"; test ! -d debug || find debug -type d) |
+  sed 's,^,%dir /usr/lib/,' >> "$LISTFILE"
+
+  (cd "${RPM_BUILD_ROOT}/usr"
+   test ! -d lib/debug || find lib/debug ! -type d
+  ) | sed 's,^,/usr/,' >> "$LISTFILE"
+fi
+
+: > "$SOURCEFILE"
+if [ -d "${RPM_BUILD_ROOT}/usr/src" ]; then
+  (cd "${RPM_BUILD_ROOT}/usr"
+   test ! -d src/debug || find src/debug -mindepth 1 -maxdepth 1
+  ) | sed 's,^,/usr/,' >> "$SOURCEFILE"
+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