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132 lines
3.3 KiB
Awk
132 lines
3.3 KiB
Awk
# Combine version map fragments into version scripts for our shared objects.
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# Copyright (C) 1998,99,2000,02 Free Software Foundation, Inc.
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# Written by Ulrich Drepper <drepper@cygnus.com>, 1998.
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# This script expects the following variables to be defined:
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# defsfile name of Versions.def file
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# buildroot name of build directory with trailing slash
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# move_if_change move-if-change command
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# Read definitions for the versions.
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BEGIN {
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nlibs=0;
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while (getline < defsfile) {
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if (/^[a-zA-Z0-9_.]+ \{/) {
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libs[$1] = 1;
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curlib = $1;
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while (getline < defsfile && ! /^}/) {
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if ($2 == "=") {
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renamed[curlib "::" $1] = $3;
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}
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else
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versions[$1] = 1;
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}
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}
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}
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close(defsfile);
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tmpfile = buildroot "Versions.tmp";
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# Note this sorting presumes only single digits between dots for proper
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# numeric ordering. sort -n doesn't do quite the right thing either,
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# and in some non-GNU sort implementations does not sort at all.
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sort = "sort > " tmpfile;
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}
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# Remove comment lines.
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/^ *#/ {
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next;
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}
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# This matches the beginning of the version information for a new library.
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/^[a-zA-Z0-9_.]+/ {
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actlib = $1;
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if (!libs[$1]) {
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printf("no versions defined for %s\n", $1) > "/dev/stderr";
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exit 1;
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}
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next;
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}
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# This matches the beginning of a new version for the current library.
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/^ [A-Za-z_]/ {
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if (renamed[actlib "::" $1])
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actver = renamed[actlib "::" $1];
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else if (!versions[$1]) {
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printf("version %s not defined for %s\n", $1, actlib) > "/dev/stderr";
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exit 1;
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}
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else
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actver = $1;
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next;
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}
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# This matches lines with names to be added to the current version in the
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# current library. This is the only place where we print something to
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# the intermediate file.
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/^ / {
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sortver=actver
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# Ensure GLIBC_ versions come always first
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sub(/^GLIBC_/," GLIBC_",sortver)
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printf("%s %s %s\n", actlib, sortver, $0) | sort;
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}
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function closeversion(name, oldname) {
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if (firstinfile) {
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printf(" local:\n *;\n") > outfile;
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firstinfile = 0;
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}
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# This version inherits from the last one only if they
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# have the same nonnumeric prefix, i.e. GLIBC_x.y and GLIBC_x.z
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# or FOO_x and FOO_y but not GLIBC_x and FOO_y.
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pfx = oldname;
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sub(/[0-9.]+/,".+",pfx);
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if (oldname == "" || name !~ pfx) print "};" > outfile;
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else printf("} %s;\n", oldname) > outfile;
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}
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function close_and_move(name, real_name) {
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close(name);
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system(move_if_change " " name " " real_name " >&2");
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}
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# Now print the accumulated information.
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END {
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close(sort);
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oldlib = "";
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oldver = "";
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printf("version-maps =");
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while (getline < tmpfile) {
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if ($1 != oldlib) {
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if (oldlib != "") {
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closeversion(oldver, veryoldver);
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oldver = "";
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close_and_move(outfile, real_outfile);
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}
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oldlib = $1;
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real_outfile = buildroot oldlib ".map";
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outfile = real_outfile "T";
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firstinfile = 1;
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veryoldver = "";
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printf(" %s.map", oldlib);
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}
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if ($2 != oldver) {
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if (oldver != "") {
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closeversion(oldver, veryoldver);
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veryoldver = oldver;
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}
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printf("%s {\n global:\n", $2) > outfile;
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oldver = $2;
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}
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printf(" ") > outfile;
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for (n = 3; n <= NF; ++n) {
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printf(" %s", $n) > outfile;
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}
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printf("\n") > outfile;
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}
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printf("\n");
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closeversion(oldver, veryoldver);
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close_and_move(outfile, real_outfile);
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system("rm -f " tmpfile);
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}
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