scripts/set-abi-version.sh

   1 #!/usr/bin/env bash
   2 #
   3 # Copyright (C) 2020 OpenWrt.org
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See /LICENSE for more information.
   7 #
   8 SELF=${0##*/}
   9
  10 [ -n "$PATCHELF" ] || {
  11   echo "$SELF: patchelf command not defined (PATCHELF variable not set)"
  12   exit 1
  13 }
  14
  15 ABI_VER="$1"
  16 PATCH_DIR="$2"
  17 REF_LIST="$3"
  18
  19 [ -n "$ABI_VER" -a -n "$PATCH_DIR" ] || {
  20         echo "$SELF: no ABI version or files/directories specified"
  21         echo "usage: $SELF <VERSION> [<PATH>...]"
  22         exit 1
  23 }
  24
  25 cmd() {
  26         echo "$@" >&2
  27         "$@" || exit 1
  28 }
  29
  30 gen_lib_list() {
  31         while read F; do
  32                 F="${F##*/}"
  33                 case "$F" in
  34                         lib*.so*);;
  35                         *) continue;;
  36                 esac
  37                 echo -n "$F:"
  38         done < "$REF_LIST"
  39 }
  40
  41 find "$PATCH_DIR" -type f -a -name 'lib*.so*' | \
  42 (
  43         while read F; do
  44                 NEW_F="${F%%.so*}.so.$ABI_VER"
  45                 NEW_NAME="${NEW_F##*/}"
  46                 [ "$NEW_F" != "$F" ] || continue
  47                 cmd mv "$F" "$NEW_F"
  48                 [ "$REF_LIST" ] || cmd ln -s "$NEW_NAME" "$F"
  49                 cmd $PATCHELF --set-soname "$NEW_NAME" "$NEW_F"
  50         done
  51 )
  52
  53 [ -n "$REF_LIST" ] || exit 0
  54
  55 LIBS="$(gen_lib_list)"
  56 LIBS="${LIBS%%:}"
  57 find "$PATCH_DIR" -type f -a -exec file {} \; | \
  58   sed -n -e 's/^\(.*\):.*ELF.*\(executable\|relocatable\|shared object\).*,.*/\1:\2/p' | \
  59 (
  60         IFS=":"
  61         while read F S; do
  62                 $PATCHELF --print-needed "$F" | while read L; do
  63                         BASE_L="${L%%.so*}"
  64                         for lib in $LIBS; do
  65                                 base_lib="${lib%%.so*}"
  66                                 [ "$BASE_L" = "$base_lib" ] || continue
  67                                 [ "$l" = "$lib" ] && continue
  68                                 cmd $PATCHELF --replace-needed "$L" "$lib" "$F"
  69                         done
  70                 done
  71         done
  72         true
  73 )