Added code to add ifunc attribute

Former-commit-id: 330b6ea5dc38562c73ced8b396260301372b62a9

.gitattributes

@@ -388,6 +388,7 @@ tests/zsh/tests/test3.sh -text
 tests/zsh/tests/test4.sh -text
 tests/zsh/tests/test5.sh -text
 tests/zsh/tests/test6.sh -text
+tools/add_ifunc_attr.sh -text
 tools/bed.sh -text
 tools/bed_blackbox.sh -text
 tools/bed_manual.sh -text

tools/add_ifunc_attr.sh

+#!/bin/sh
+
+infile=$1
+annotfile=$2
+
+for ifunc in `nm  $infile|grep " i "|cut -f3 -d" "`
+do
+	cat $annotfile|sed "s/ FUNC GLOBAL $ifunc / FUNC GLOBAL $ifunc IFUNC /" > $annotfile.tmp.$$
+	mv $annotfile.tmp.$$ $annotfile
+done