diff options
Diffstat (limited to 'lib/tevent/script')
-rwxr-xr-x | lib/tevent/script/abi_checks.sh | 91 | ||||
-rwxr-xr-x | lib/tevent/script/abi_checks_gcc.sh | 31 | ||||
-rwxr-xr-x | lib/tevent/script/mksigs.pl | 183 | ||||
-rw-r--r-- | lib/tevent/script/mksyms.awk | 76 | ||||
-rwxr-xr-x | lib/tevent/script/mksyms.sh | 45 |
5 files changed, 426 insertions, 0 deletions
diff --git a/lib/tevent/script/abi_checks.sh b/lib/tevent/script/abi_checks.sh new file mode 100755 index 0000000000..c34a659d73 --- /dev/null +++ b/lib/tevent/script/abi_checks.sh @@ -0,0 +1,91 @@ +#!/bin/sh + +# +# abi_checks.sh - check for possible abi changes +# +# Copyright (C) 2009 Micheal Adam <obnox@samba.org> +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the Free +# Software Foundation; either version 3 of the License, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. +# +# You should have received a copy of the GNU General Public License along with +# this program; if not, see <http://www.gnu.org/licenses/>. +# + +# +# USAGE: abi_checks.sh LIBNAME header1 [header2 ...] +# +# This script creates symbol and signature lists from the provided header +# files with the aid of the mksyms.sh and mksigs.pl scripts (saved as +# $LIBNAME.exports.check and $LIBNAME.sigatures.check). It then compares +# the resulting files with the files $LIBNAME.exports and $LIBNME.signatures +# which it expects to find in the current directory. +# + +LANG=C; export LANG +LC_ALL=C; export LC_ALL +LC_COLLATE=C; export LC_COLLATE + +script=$0 +dir_name=$(dirname ${script}) + +if test x"$1" = "x" ; then + echo "USAGE: ${script} libname header [header ...]" + exit 1 +fi + +libname="$1" +shift + +if test x"$1" = "x" ; then + echo "USAGE: ${script} libname header [header ...]" + exit 1 +fi + +headers="$*" + +exports_file=${libname}.exports +exports_file_check=${exports_file}.check +signatures_file=${libname}.signatures +signatures_file_check=${signatures_file}.check + + +${dir_name}/mksyms.sh awk ${exports_file_check} ${headers} 2>&1 > /dev/null + +cat ${headers} | ${dir_name}/mksigs.pl > ${signatures_file_check} 2> /dev/null + +normalize_exports_file() { + filename=$1 + cat ${filename} \ + | sed -e 's/^[ \t]*//g' \ + | sed -e 's/^$//g' \ + | sed -e 's/^#.*$//g' \ + | sort | uniq > ${filename}.sort +} + +normalize_exports_file ${exports_file} +normalize_exports_file ${exports_file_check} + +normalize_exports_file ${signatures_file} +normalize_exports_file ${signatures_file_check} + +diff -u ${exports_file}.sort ${exports_file_check}.sort +if test "x$?" != "x0" ; then + echo "WARNING: possible ABI change detected in exports!" +else + echo "exports check: OK" +fi + +diff -u ${signatures_file}.sort ${signatures_file_check}.sort +if test "x$?" != "x0" ; then + echo "WARNING: possible ABI change detected in signatures!" +else + echo "signatures check: OK" +fi diff --git a/lib/tevent/script/abi_checks_gcc.sh b/lib/tevent/script/abi_checks_gcc.sh new file mode 100755 index 0000000000..95182097d5 --- /dev/null +++ b/lib/tevent/script/abi_checks_gcc.sh @@ -0,0 +1,31 @@ +#!/bin/bash +make clean + +mkdir abi +ABI_CHECKS="-aux-info abi/\$@.X" +make ABI_CHECK="$ABI_CHECKS" CC="/usr/bin/gcc" + +for i in abi/*.X; do cat $i | grep 'tevent\.h'; done | sort | uniq | awk -F "extern " '{ print $2 }' | sort> abi/signatures + +cat > abi/exports << EOF +{ + global: +EOF +cat abi/signatures | awk -F '(' '{ print $1 }' | awk -F ' ' '{ print " "$NF";" }' | tr -d '*' | sort >> abi/exports +cat >> abi/exports << EOF + + local: *; +}; +EOF + +rm -fr abi/*.X + +diff -u tevent.signatures abi/signatures +if [ "$?" != "0" ]; then + echo "WARNING: Possible ABI Change!!" +fi + +diff -u tevent.exports abi/exports +if [ "$?" != "0" ]; then + echo "WARNING: Export file may be outdated!!" +fi diff --git a/lib/tevent/script/mksigs.pl b/lib/tevent/script/mksigs.pl new file mode 100755 index 0000000000..755cd79603 --- /dev/null +++ b/lib/tevent/script/mksigs.pl @@ -0,0 +1,183 @@ +#!/usr/bin/perl + +# mksigs.pl - extract signatures from C headers +# +# Copyright (C) Michael Adam 2009 +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the Free +# Software Foundation; either version 3 of the License, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. +# +# You should have received a copy of the GNU General Public License along with +# this program; if not, see <http://www.gnu.org/licenses/>. + +# USAGE: cat $header_files | mksigs.pl > $signature_file +# +# The header files to parse are read from stdin. +# The output is in a form as produced by gcc with the -aux-info switch +# and printed to stdout. + +use strict; +use warnings; + +my $in_comment = 0; +my $extern_C_block = 0; + +while (my $LINE = <>) { + # find end of started multi-line-comment + if ($in_comment) { + if ($LINE =~ /^.*?\*\/(.*)$/) { + $LINE = $1; + $in_comment = 0; + } else { + # whole line within comment + next; + } + } + + # strip C++-style comments + $LINE =~ s/^(.*?)\/\/.*$/$1/; + + # strip in-line-comments: + while ($LINE =~ /\/\*.*?\*\//) { + $LINE =~ s/\/\*.*?\*\///; + } + + # find starts of multi-line-comments + if ($LINE =~ /^(.*)\/\*/) { + $in_comment = 1; + $LINE = $1; + } + + # skip empty lines + next if $LINE =~ /^\s*$/; + + # remove leading spaces + $LINE =~ s/^\s*(.*)$/$1/; + + # concatenate lines split with "\" (usually macro defines) + while ($LINE =~ /^(.*?)\s+\\$/) { + my $LINE2 = <>; + $LINE = $1; + $LINE2 =~ s/^\s*(.*)$/$1/; + $LINE .= " " . $LINE2; + } + + # remove all preprocessor directives + next if ($LINE =~ /^#/); + + if ($LINE =~ /^extern\s+"C"\s+\{/) { + $extern_C_block = 1; + next; + } + + if (($LINE =~ /^[^\{]*\}/) and $extern_C_block) { + $extern_C_block = 0; + next; + } + + $LINE =~ s/^extern\s//; + + # concatenate braces stretched over multiple lines + # (from structs or enums) + my $REST = $LINE; + my $braces = 0; + while (($REST =~ /[\{\}]/) or ($braces)) { + while ($REST =~ /[\{\}]/) { + # collect opening + while ($REST =~ /^[^\{\}]*\{(.*)$/) { + $braces++; + $REST = $1; + } + + # collect closing + while ($REST =~ /^[^\{\}]*\}(.*)$/) { + $braces--; + $REST = $1; + } + } + + # concatenate if not balanced + if ($braces) { + if (my $LINE2 = <>) { + $LINE2 =~ s/^\s*(.*)$/$1/; + chomp($LINE); + $LINE .= " " . $LINE2; + chomp $REST; + $REST .= " " . $LINE2; + } else { + print "ERROR: unbalanced braces ($braces)\n"; + last; + } + } + } + + # concetenate function prototypes that stretch over multiple lines + $REST = $LINE; + my $parenthesis = 0; + while (($REST =~ /[\(\)]/) or ($parenthesis)) { + while ($REST =~ /[\(\)]/) { + # collect opening + while ($REST =~ /^[^\(\)]*\((.*)$/) { + $parenthesis++; + $REST = $1; + } + + # collect closing + while ($REST =~ /^[^\(\)]*\)(.*)$/) { + $parenthesis--; + $REST = $1; + } + } + + # concatenate if not balanced + if ($parenthesis) { + if (my $LINE2 = <>) { + $LINE2 =~ s/^\s*(.*)$/$1/; + chomp($LINE); + $LINE .= " " . $LINE2; + chomp($REST); + $REST .= " " . $LINE2; + } else { + print "ERROR: unbalanced parantheses ($parenthesis)\n"; + last; + } + } + } + + next if ($LINE =~ /^typedef\s/); + next if ($LINE =~ /^enum\s+[^\{\(]+\s+\{/); + next if ($LINE =~ /^struct\s+[^\{\(]+\s+\{.*\}\s*;/); + next if ($LINE =~ /^struct\s+[a-zA-Z0-9_]+\s*;/); + + # remove trailing spaces + $LINE =~ s/(.*?)\s*$/$1/; + + $LINE =~ s/^(.*\))\s+PRINTF_ATTRIBUTE\([^\)]*\)(\s*[;,])/$1$2/; + $LINE =~ s/^(.*\))\s*[a-zA-Z0-9_]+\s*;$/$1;/; + + # remove parameter names - slightly too coarse probably + $LINE =~ s/([\s\(]\*?)[_0-9a-zA-Z]+\s*([,\)])/$1$2/g; + + # remedy (void) from last line + $LINE =~ s/\(\)/(void)/g; + + # normalize spaces + $LINE =~ s/\s*\)\s*/)/g; + $LINE =~ s/\s*\(\s*/ (/g; + $LINE =~ s/\s*,\s*/, /g; + + # normalize unsigned + $LINE =~ s/([\s,\(])unsigned([,\)])/$1unsigned int$2/g; + + # normalize bool + $LINE =~ s/(\b)bool(\b)/_Bool/g; + + print $LINE . "\n"; +} diff --git a/lib/tevent/script/mksyms.awk b/lib/tevent/script/mksyms.awk new file mode 100644 index 0000000000..94a405ca68 --- /dev/null +++ b/lib/tevent/script/mksyms.awk @@ -0,0 +1,76 @@ +# +# mksyms.awk +# +# Extract symbols to export from C-header files. +# output in version-script format for linking shared libraries. +# +# Copyright (C) 2008 Michael Adam <obnox@samba.org> +# +BEGIN { + inheader=0; + current_file=""; + print "#" + print "# This file is automatically generated with \"make symbols\". DO NOT EDIT " + print "#" + print "{" + print "\tglobal:" +} + +END { + print"" + print "\tlocal: *;" + print "};" +} + +{ + if (FILENAME!=current_file) { + print "\t\t# The following definitions come from",FILENAME + current_file=FILENAME + } + if (inheader) { + if (match($0,"[)][^()]*[;][ \t]*$")) { + inheader = 0; + } + next; + } +} + +/^static/ || /^[ \t]*typedef/ || !/^[a-zA-Z\_]/ { + next; +} + +/^extern[ \t]+[^()]+[;][ \t]*$/ { + gsub(/[^ \t]+[ \t]+/, ""); + sub(/[;][ \t]*$/, ""); + printf "\t\t%s;\n", $0; + next; +} + +# look for function headers: +{ + gotstart = 0; + if ($0 ~ /^[A-Za-z_][A-Za-z0-9_]+/) { + gotstart = 1; + } + if(!gotstart) { + next; + } +} + +/[_A-Za-z0-9]+[ \t]*[(].*[)][^()]*;[ \t]*$/ { + sub(/[(].*$/, ""); + gsub(/[^ \t]+[ \t]+/, ""); + gsub(/^[*]+/, ""); + printf "\t\t%s;\n",$0; + next; +} + +/[_A-Za-z0-9]+[ \t]*[(]/ { + inheader=1; + sub(/[(].*$/, ""); + gsub(/[^ \t]+[ \t]+/, ""); + gsub(/^[*]/, ""); + printf "\t\t%s;\n",$0; + next; +} + diff --git a/lib/tevent/script/mksyms.sh b/lib/tevent/script/mksyms.sh new file mode 100755 index 0000000000..7fb4031e2b --- /dev/null +++ b/lib/tevent/script/mksyms.sh @@ -0,0 +1,45 @@ +#! /bin/sh + +# +# mksyms.sh +# +# Extract symbols to export from C-header files. +# output in version-script format for linking shared libraries. +# +# This is the shell wrapper for the mksyms.awk core script. +# +# Copyright (C) 2008 Michael Adam <obnox@samba.org> +# + +LANG=C; export LANG +LC_ALL=C; export LC_ALL +LC_COLLATE=C; export LC_COLLATE + +if [ $# -lt 2 ] +then + echo "Usage: $0 awk output_file header_files" + exit 1 +fi + +awk="$1" +shift + +symsfile="$1" +shift +symsfile_tmp="$symsfile.$$.tmp~" + +proto_src="`echo $@ | tr ' ' '\n' | sort | uniq `" + +echo creating $symsfile + +mkdir -p `dirname $symsfile` + +${awk} -f `dirname $0`/mksyms.awk $proto_src > $symsfile_tmp + +if cmp -s $symsfile $symsfile_tmp 2>/dev/null +then + echo "$symsfile unchanged" + rm $symsfile_tmp +else + mv $symsfile_tmp $symsfile +fi |