convert gnu ld symbols file to a flat file, only export variables in

global name space. Can't handle recursive defintions.


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23259 ec53bebd-3082-4978-b11e-865c3cabbd6b

cf/symbol-version.py

@@ -0,0 +1,85 @@
+#
+# Copyright (c) 2008 Kungliga Tekniska H<>gskolan
+# (Royal Institute of Technology, Stockholm, Sweden). 
+# All rights reserved. 
+#
+# Redistribution and use in source and binary forms, with or without 
+# modification, are permitted provided that the following conditions 
+# are met: 
+#
+# 1. Redistributions of source code must retain the above copyright 
+#    notice, this list of conditions and the following disclaimer. 
+#
+# 2. Redistributions in binary form must reproduce the above copyright 
+#    notice, this list of conditions and the following disclaimer in the 
+#    documentation and/or other materials provided with the distribution. 
+#
+# 3. Neither the name of the Institute nor the names of its contributors 
+#    may be used to endorse or promote products derived from this software 
+#    without specific prior written permission. 
+#
+# THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+# SUCH DAMAGE. 
+
+
+import sys
+
+tokens = [ 'SYMBOL' ]
+literals = ['{','}',';', ':']
+
+t_SYMBOL    = r'[a-zA-Z_][a-zA-Z0-9_\.]*'
+t_ignore = " \t\n"
+
+def t_error(t):
+    print "Illegal character '%s'" % t.value[0]
+    t.lexer.skip(1)
+    
+import ply.lex as lex
+lex.lex()
+
+namespace = "global"
+symbols = []
+
+def p_syms(p):
+    'syms : SYMBOL "{" elements "}"'
+    print "# %s" % p[1]
+
+def p_elements(p):
+    '''elements : element
+             | element elements'''
+
+def p_element(p):
+    '''element : SYMBOL ":"
+               | SYMBOL ";"'''
+    global namespace
+    if p[2] == ':':
+        namespace = p[1]
+    else:
+        symbols.append([namespace, p[1]])
+    
+def p_error(p):
+    if p:
+        print "Syntax error at '%s'" % p.value
+    else:
+        print "Syntax error at EOF"
+
+import ply.yacc as yacc
+yacc.yacc()
+
+lines = sys.stdin.readlines()
+
+for line in lines:
+    yacc.parse(line)
+
+for symbol in symbols:
+    if symbol[0] == "global":
+        print "%s" % symbol[1]