#!/usr/bin/python3
import json
import sys

filefd = open(sys.argv[1])
jsonstr = filefd.read()
filefd.close()

j = json.loads(jsonstr)

print("static struct tdx_global_metadata tgm")
print("{")

def find_field(name):
	for f in j['Fields']:
		if f['Field Name'] == name:
			return f
	return None

fields = """
TDX_FEATURES0
BUILD_DATE
BUILD_NUM
MINOR_VERSION
""".strip().split("\n")

for fn in fields:
	f = find_field(fn)
	name = f['Field Name']
	element_bytes = int(f['Element Size (Bytes)'])
	element_bits = element_bytes * 8
	print("\tu%d %s;" % (element_bits, name))

print("}")


print("static void read_gunk()")
print("{")
print("\tint ret = 0;")
print("")
for fn in fields:
	f = find_field(fn)
	print("\tret |= read_sys_metadata_field(%s, &tgm.%s);" %
			(f['Base FIELD_ID (Hex)'],
			 f['Field Name']))
print("")
print("\treturn ret;")
print("}")