lib/talloc/script/abi_checks.sh

   1 #!/bin/sh
   2
   3 #
   4 # abi_checks.sh - check for possible abi changes
   5 #
   6 # Copyright (C) 2009 Michael Adam <obnox@samba.org>
   7 #
   8 # This program is free software; you can redistribute it and/or modify it
   9 # under the terms of the GNU General Public License as published by the Free
  10 # Software Foundation; either version 3 of the License, or (at your option)
  11 # any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful, but WITHOUT
  14 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16 # more details.
  17 #
  18 # You should have received a copy of the GNU General Public License along with
  19 # this program; if not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 #
  23 # USAGE: abi_checks.sh LIBNAME header1 [header2 ...]
  24 #
  25 # This script creates symbol and signature lists from the provided header
  26 # files with the aid of the mksyms.sh and mksigs.pl scripts (saved as
  27 # $LIBNAME.exports.check and $LIBNAME.sigatures.check). It then compares
  28 # the resulting files with the files $LIBNAME.exports and $LIBNME.signatures
  29 # which it expects to find in the current directory.
  30 #
  31
  32 LANG=C; export LANG
  33 LC_ALL=C; export LC_ALL
  34 LC_COLLATE=C; export LC_COLLATE
  35
  36 script=$0
  37 dir_name=$(dirname ${script})
  38
  39 if test x"$1" = "x" ; then
  40         echo "USAGE: ${script} libname header [header ...]"
  41         exit 1
  42 fi
  43
  44 libname="$1"
  45 shift
  46
  47 if test x"$1" = "x" ; then
  48         echo "USAGE: ${script} libname header [header ...]"
  49         exit 1
  50 fi
  51
  52 headers="$*"
  53
  54 exports_file=${libname}.exports
  55 exports_file_check=${exports_file}.check
  56 signatures_file=${libname}.signatures
  57 signatures_file_check=${signatures_file}.check
  58
  59
  60 ${dir_name}/mksyms.sh awk ${exports_file_check} ${headers} 2>&1 > /dev/null
  61
  62 cat ${headers} | ${dir_name}/mksigs.pl > ${signatures_file_check} 2> /dev/null
  63
  64 normalize_exports_file() {
  65         filename=$1
  66         cat ${filename} \
  67         | sed -e 's/^[ \t]*//g' \
  68         | sed -e 's/^$//g' \
  69         | sed -e 's/^#.*$//g' \
  70         | sort | uniq > ${filename}.sort
  71 }
  72
  73 normalize_exports_file ${exports_file}
  74 normalize_exports_file ${exports_file_check}
  75
  76 normalize_exports_file ${signatures_file}
  77 normalize_exports_file ${signatures_file_check}
  78
  79 diff -u ${exports_file}.sort ${exports_file_check}.sort
  80 if test "x$?" != "x0" ; then
  81         echo "WARNING: possible ABI change detected in exports!"
  82 else
  83         echo "exports check: OK"
  84 fi
  85
  86 diff -u ${signatures_file}.sort ${signatures_file_check}.sort
  87 if test "x$?" != "x0" ; then
  88         echo "WARNING: possible ABI change detected in signatures!"
  89 else
  90         echo "signatures check: OK"
  91 fi