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tdb: add scripts to extract library symbols (exports file) from headers

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Michael
(cherry picked from samba commit 006fd0c43c7c403b8671dfc46e5ee31e92480e1f)

Signed-off-by: Stefan Metzmacher <metze@samba.org>

(This used to be ctdb commit aed864dceaf6ec1e6e6066a587c708b485901200)
This commit is contained in:
Michael Adam 2009-08-28 15:01:17 +02:00 committed by Stefan Metzmacher
parent eb9d367843
commit 53336a9cb1
2 changed files with 121 additions and 0 deletions
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76
ctdb/lib/tdb/script/mksyms.awk Normal file
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#
# mksyms.awk
#
# Extract symbols to export from C-header files.
# output in version-script format for linking shared libraries.
#
# Copyright (C) 2008 Micheal 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($0,"[)][ \t]*[;][ \t]*$")) {
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 ($0 ~ /^[A-Za-z_][A-Za-z0-9_]+/) {
gotstart = 1;
}
if(!gotstart) {
next;
}
}
/[_A-Za-z0-9]+[ \t]*[(].*[)][ \t]*;[ \t]*$/ {
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;
}

45
ctdb/lib/tdb/script/mksyms.sh Executable file
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#! /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 Micheal 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