1 # Combine version map fragments into version scripts for our shared objects.
2 # Copyright (C) 1998,99,2000,2002,2005 Free Software Foundation, Inc.
3 # Written by Ulrich Drepper <drepper@cygnus.com>, 1998.
5 # This script expects the following variables to be defined:
6 # defsfile name of Versions.def file
7 # buildroot name of build directory with trailing slash
8 # move_if_change move-if-change command
10 # Read definitions for the versions.
15 while (getline < defsfile) {
16 if (/^[a-zA-Z0-9_.]+ \{/) {
19 while (getline < defsfile && ! /^}/) {
21 renamed[curlib "::" $1] = $3;
24 versions[curlib "::" $1] = 1;
30 tmpfile = buildroot "Versions.tmp";
31 # Note this sorting presumes only single digits between dots for proper
32 # numeric ordering. sort -n doesn't do quite the right thing either,
33 # and in some non-GNU sort implementations does not sort at all.
34 sort = "sort > " tmpfile;
37 # Remove comment lines.
42 # This matches the beginning of the version information for a new library.
46 printf("no versions defined for %s\n", $1) > "/dev/stderr";
52 # This matches the beginning of a new version for the current library.
54 if (renamed[actlib "::" $1])
55 actver = renamed[actlib "::" $1];
56 else if (!versions[actlib "::" $1] && $1 != "GLIBC_PRIVATE") {
57 printf("version %s not defined for %s\n", $1, actlib) > "/dev/stderr";
65 # This matches lines with names to be added to the current version in the
66 # current library. This is the only place where we print something to
67 # the intermediate file.
70 # Ensure GLIBC_ versions come always first
71 sub(/^GLIBC_/," GLIBC_",sortver)
72 printf("%s %s %s\n", actlib, sortver, $0) | sort;
76 function closeversion(name, oldname) {
78 printf(" local:\n *;\n") > outfile;
81 # This version inherits from the last one only if they
82 # have the same nonnumeric prefix, i.e. GLIBC_x.y and GLIBC_x.z
83 # or FOO_x and FOO_y but not GLIBC_x and FOO_y.
85 sub(/[0-9.]+/,".+",pfx);
86 if (oldname == "" || name !~ pfx) print "};" > outfile;
87 else printf("} %s;\n", oldname) > outfile;
90 function close_and_move(name, real_name) {
92 system(move_if_change " " name " " real_name " >&2");
95 # Now print the accumulated information.
100 system("rm -f " tmpfile);
106 printf("version-maps =");
107 while (getline < tmpfile) {
110 closeversion(oldver, veryoldver);
112 close_and_move(outfile, real_outfile);
115 real_outfile = buildroot oldlib ".map";
116 outfile = real_outfile "T";
119 printf(" %s.map", oldlib);
123 closeversion(oldver, veryoldver);
126 printf("%s {\n global:\n", $2) > outfile;
129 printf(" ") > outfile;
130 for (n = 3; n <= NF; ++n) {
131 printf(" %s", $n) > outfile;
133 printf("\n") > outfile;
136 closeversion(oldver, veryoldver);
137 close_and_move(outfile, real_outfile);
138 system("rm -f " tmpfile);