tools/webOS/verify-symbols.sh

   1 #!/bin/sh
   2
   3 # found on https://github.com/webosbrew/dev-utils/tree/main/scripts
   4
   5 EXE="$1"
   6
   7 if [ ! -f "${EXE}" ]; then
   8   echo "Usage: $0 executable"
   9   exit 1
  10 fi
  11
  12 if [ ! -d "${WEBOS_ROOTFS}" ]; then
  13   echo 'WEBOS_ROOTFS is not a directory'
  14   exit 1
  15 fi
  16
  17 lib_search_paths="${WEBOS_ROOTFS}/lib:${WEBOS_ROOTFS}/usr/lib:${WEBOS_LD_LIBRARY_PATH}"
  18
  19 required_syms=$(nm --dynamic --extern-only --undefined-only "${EXE}" | grep ' [U] ' | tr -s ' ' | cut -d ' ' -f 3)
  20
  21 needed_libs=$(objdump -p "${EXE}" | grep NEEDED | tr -s ' ' | cut -d ' ' -f 3)
  22 found_libs=""
  23 has_missing=0
  24
  25 for lib in ${needed_libs}; do
  26   lib_found=0
  27   OLDIFS=$IFS
  28   IFS=:
  29   for path in ${lib_search_paths}; do
  30     lib_path="${path}/${lib}"
  31     if [ -f "${lib_path}" ]; then
  32       lib_found=1
  33       found_libs="${found_libs} ${lib_path}"
  34     fi
  35   done
  36   IFS=$OLDIFS
  37   if [ ${lib_found} = 0 ]; then
  38     has_missing=1
  39     echo "Missing library: ${lib}"
  40   fi
  41 done
  42
  43 # shellcheck disable=SC2086
  44 lib_syms=$(nm --dynamic --extern-only --defined-only ${found_libs} | grep ' [a-zA-Z] ' | cut -d ' ' -f 3 | tr -s '@')
  45
  46 for sym in ${required_syms}; do
  47   if ! echo "${lib_syms}" | grep -q "${sym}"; then
  48     has_missing=1
  49     sym_name=$(echo "${sym}" | cut -d '@' -f 1 | c++filt)
  50     if echo "${sym}" | grep -q '@'; then
  51       sym_ver="@$(echo ${sym} | cut -d '@' -f 2)"
  52     fi
  53     echo "Missing symbol: ${sym_name}${sym_ver}"
  54   fi
  55 done
  56
  57 if [ ${has_missing} = 0 ]; then
  58   echo "All OK."
  59 fi
  60
  61 return $has_missing