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# Combine version map fragments into version files for the generated
# shared object.
# (C) Copyright 1998 Free Software Foundation, Inc.
# Written by Ulrich Drepper <drepper@cygnus.com>, 1998.
# This script expects the following variables to be defined:
# defsfile name of Versions.def file
# buildroot name of build directory with trailing slash
# move_if_change move-if-change command
# Read definitions for the versions.
BEGIN {
nlibs=0;
while (getline < defsfile) {
if (/^[a-zA-Z0-9_]+ {/) {
libs[$1] = 1;
curlib = $1;
while (getline < defsfile && ! /^}/) {
versions[$1] = 1;
if (NF > 1) {
derived[curlib, $1] = " " $2;
for (n = 3; n <= NF; ++n) {
derived[curlib, $1] = derived[curlib, $1] ", " $n;
}
}
}
}
}
close(defsfile);
tmpfile = buildroot "Versions.tmp";
sort = "sort -n > " tmpfile;
}
# Remove comment lines.
/^ *#/ {
next;
}
# This matches the beginning of the version information for a new library.
/^[a-zA-Z0-9_]+/ {
actlib = $1;
if (!libs[$1]) {
printf("no versions defined for %s\n", $1) > "/dev/stderr";
exit 1;
}
next;
}
# This matches the beginning of a new version for the current library.
/^ [A-Za-z_]/ {
actver = $1;
if (!versions[$1]) {
printf("version %s not defined\n", $1) > "/dev/stderr";
exit 1;
}
next;
}
# This matches lines with names to be added to the current version in the
# current library. This is the only place where we print something to
# the intermediate file.
/^ / {
printf("%s %s %s\n", actlib, actver, $0) | sort;
}
function closeversion(name) {
if (firstinfile) {
printf(" local:\n *;\n") > outfile;
firstinfile = 0;
}
printf("}%s;\n", derived[oldlib, name]) > outfile;
}
function close_and_move(name, real_name) {
close(name);
system(move_if_change " " name " " real_name " >&2");
}
# Now print the accumulated information.
END {
close(sort);
oldlib = "";
oldver = "";
printf("version-maps =");
while(getline < tmpfile) {
if ($1 != oldlib) {
if (oldlib != "") {
closeversion(oldver);
oldver = "";
close_and_move(outfile, real_outfile);
}
oldlib = $1;
real_outfile = buildroot oldlib ".map";
outfile = real_outfile "T";
firstinfile = 1;
printf(" %s.map", oldlib);
}
if ($2 != oldver) {
if (oldver != "") {
closeversion(oldver);
}
printf("%s {\n global:\n", $2) > outfile;
oldver = $2;
}
printf(" ") > outfile;
for (n = 3; n <= NF; ++n) {
printf(" %s", $n) > outfile;
}
printf("\n") > outfile;
}
printf("\n");
closeversion(oldver);
close_and_move(outfile, real_outfile);
system("rm -f " tmpfile);
}
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