[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/scripts/versions.awk b/ap/libc/glibc/glibc-2.23/scripts/versions.awk
new file mode 100644
index 0000000..408f7d0
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/scripts/versions.awk
@@ -0,0 +1,137 @@
+# Combine version map fragments into version scripts for our shared objects.
+# Copyright (C) 1998-2016 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 {
+ lossage = 0;
+
+ nlibs=0;
+ while (getline < defsfile) {
+ if (/^[a-zA-Z0-9_.]+ \{/) {
+ libs[$1] = 1;
+ curlib = $1;
+ while (getline < defsfile && ! /^}/) {
+ if ($2 == "=") {
+ renamed[curlib "::" $1] = $3;
+ }
+ else
+ versions[curlib "::" $1] = 1;
+ }
+ }
+ }
+ close(defsfile);
+
+ tmpfile = buildroot "Versions.tmp";
+ # POSIX sort needed.
+ sort = "sort -t. -k 1,1 -k 2n,2n -k 3 > " 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";
+ ++lossage;
+ }
+ next;
+}
+
+# This matches the beginning of a new version for the current library.
+/^ [A-Za-z_]/ {
+ if (renamed[actlib "::" $1])
+ actver = renamed[actlib "::" $1];
+ else if (!versions[actlib "::" $1] && $1 != "GLIBC_PRIVATE") {
+ printf("version %s not defined for %s\n", $1, actlib) > "/dev/stderr";
+ ++lossage;
+ }
+ else
+ actver = $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.
+/^ / {
+ sortver=actver
+ # Ensure GLIBC_ versions come always first
+ sub(/^GLIBC_/," GLIBC_",sortver)
+ printf("%s %s %s\n", actlib, sortver, $0) | sort;
+}
+
+
+function closeversion(name, oldname) {
+ if (firstinfile) {
+ printf(" local:\n *;\n") > outfile;
+ firstinfile = 0;
+ }
+ # This version inherits from the last one only if they
+ # have the same nonnumeric prefix, i.e. GLIBC_x.y and GLIBC_x.z
+ # or FOO_x and FOO_y but not GLIBC_x and FOO_y.
+ pfx = oldname;
+ sub(/[0-9.]+/,".+",pfx);
+ if (oldname == "" || name !~ pfx) print "};" > outfile;
+ else printf("} %s;\n", oldname) > 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);
+
+ if (lossage) {
+ system("rm -f " tmpfile);
+ exit 1;
+ }
+
+ oldlib = "";
+ oldver = "";
+ printf("version-maps =");
+ while (getline < tmpfile) {
+ if ($1 != oldlib) {
+ if (oldlib != "") {
+ closeversion(oldver, veryoldver);
+ oldver = "";
+ close_and_move(outfile, real_outfile);
+ }
+ oldlib = $1;
+ real_outfile = buildroot oldlib ".map";
+ outfile = real_outfile "T";
+ firstinfile = 1;
+ veryoldver = "";
+ printf(" %s.map", oldlib);
+ }
+ if ($2 != oldver) {
+ if (oldver != "") {
+ closeversion(oldver, veryoldver);
+ veryoldver = 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, veryoldver);
+ close_and_move(outfile, real_outfile);
+ #system("rm -f " tmpfile);
+}