third_party/talloc/script/mksyms.sh

   1 #! /bin/sh
   2
   3 #
   4 # mksyms.sh
   5 #
   6 # Extract symbols to export from C-header files.
   7 # output in version-script format for linking shared libraries.
   8 #
   9 # This is the shell wrapper for the mksyms.awk core script.
  10 #
  11 # Copyright (C) 2008 Micheal Adam <obnox@samba.org>
  12 #
  13
  14 LANG=C; export LANG
  15 LC_ALL=C; export LC_ALL
  16 LC_COLLATE=C; export LC_COLLATE
  17
  18 if [ $# -lt 2 ]
  19 then
  20   echo "Usage: $0 awk output_file header_files"
  21   exit 1
  22 fi
  23
  24 awk="$1"
  25 shift
  26
  27 symsfile="$1"
  28 shift
  29 symsfile_tmp="$symsfile.$$.tmp~"
  30
  31 proto_src="`echo $@ | tr ' ' '\n' | sort | uniq `"
  32
  33 echo creating $symsfile
  34
  35 mkdir -p `dirname $symsfile`
  36
  37 #Write header
  38 cat > $symsfile_tmp << EOF
  39 # This file is autogenerated, please DO NOT EDIT
  40 {
  41     global:
  42 EOF
  43
  44 #loop on each header
  45 for i in $proto_src; do
  46 ${awk} -f `dirname $0`/mksyms.awk $i | sort >> $symsfile_tmp
  47 done;
  48
  49 #Write tail
  50 cat >> $symsfile_tmp << EOF
  51
  52     local: *;
  53 };
  54 EOF
  55
  56 if cmp -s $symsfile $symsfile_tmp 2>/dev/null
  57 then
  58   echo "$symsfile unchanged"
  59   rm $symsfile_tmp
  60 else
  61   mv $symsfile_tmp $symsfile
  62 fi