Index: tools/autogen.py
===================================================================
--- tools/autogen.py	(revision 0b811da2fba360e57108ff503269eeccc6eedf0b)
+++ tools/autogen.py	(revision 0b811da2fba360e57108ff503269eeccc6eedf0b)
@@ -0,0 +1,122 @@
+#!/usr/bin/env python
+
+import sys
+import json
+import re
+
+def usage():
+	print("%s - Automated structure and offsets generator" % sys.argv[0])
+	print("%s file.ag probe|generate struct.ag" % sys.argv[0])
+	sys.exit()
+
+def generate_includes(struct):
+	code = ""
+	for i in range(len(struct['includes'])):
+		code = code + "#include %s\n" % struct['includes'][i]
+	return code.strip()
+
+def generate_struct(struct):
+	code = "typedef struct %s {\n" % struct['name']
+	for i in range(len(struct['members'])):
+		member = struct['members'][i]
+		code = code + "\t%s %s;\n" % (member['type'], member['name'])
+	code = code + "} %s_t;" % struct['name']
+	return code
+
+def generate_probes(struct):
+	code = ""
+	for i in range(len(struct['members'])):
+		member = struct['members'][i]
+		code = code + ("\temit_constant(OFFSET_%s, offsetof(%s_t, %s));\n" % 
+		    (member['name'].upper(), struct['name'], member['name']))
+	return code
+
+def probe(struct):
+	name = struct['name']
+	typename = struct['name'] + "_t"
+
+	code = """
+%s		
+
+#define str(s) #s
+#define emit_constant(n, v) \
+    asm volatile ("EMITTED_CONSTANT " str(n) \" = %%0\" :: \"i\" (v))
+#define offsetof(t, m) ((size_t) &(((t *) 0)->m))
+
+%s
+
+main()
+{
+%s
+	emit_constant(%s_SIZE, sizeof(%s));
+}
+	""" % (generate_includes(struct), generate_struct(struct),
+	    generate_probes(struct), name.upper(), typename)
+
+	return code
+
+def generate_defines(pairs):
+	code = ""
+	for pair in pairs:
+		code = code + "#define %s %s\n" % (pair[0], pair[1])
+	return code.strip()
+
+def generate(struct, lines):
+	code = """
+/***************************************************************************** 
+ * AUTO-GENERATED FILE, DO NOT EDIT!!!
+ * Generated by: tools/autogen.py
+ * Generated from: %s
+ *****************************************************************************/
+
+#ifndef AUTOGEN_%s_H
+#define AUTOGEN_%s_H
+
+#ifndef __ASM__
+%s
+#endif
+
+%s
+
+#ifndef __ASM__
+%s
+#endif
+
+#endif
+	""" % (sys.argv[2], struct['name'].upper(), struct['name'].upper(),
+	    generate_includes(struct), generate_defines(lines),
+	    generate_struct(struct))
+
+	return code
+
+def filter_pairs(lines):
+	pattern = re.compile("^\tEMITTED_CONSTANT ([A-Z_]*) = \$([0-9]*)$");
+	pairs = []
+	for line in lines:
+		res = pattern.match(line)
+		if res == None:
+			continue
+		pairs = pairs + [res.group(1, 2)]
+	return pairs
+	
+
+def run():
+	if len(sys.argv) != 3:
+		usage()
+
+	with open(sys.argv[2], "rb") as fp:
+		struct = json.load(fp)
+
+	if sys.argv[1] == "probe":
+		code = probe(struct)
+		print(code)
+	elif sys.argv[1] == "generate":
+		lines = sys.stdin.readlines()
+		pairs = filter_pairs(lines)
+		code = generate(struct, pairs)
+		print(code)
+	else:
+		usage()
+
+run()
+