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#!/usr/bin/env python3
# Unicorn Engine
# By Dang Hoang Vu, 2013
# Modified for Ryujinx from: https://github.com/unicorn-engine/unicorn/blob/6c1cbef6ac505d355033aef1176b684d02e1eb3a/bindings/const_generator.py
from __future__ import print_function
import sys, re, os
include = [ 'arm.h', 'arm64.h', 'unicorn.h' ]
split_common = [ 'ARCH', 'MODE', 'ERR', 'MEM', 'TCG', 'HOOK', 'PROT' ]
template = {
'dotnet': {
'header': "// Constants for Unicorn Engine. AUTO-GENERATED FILE, DO NOT EDIT\n\n// ReSharper disable InconsistentNaming\nnamespace Ryujinx.Tests.Unicorn.Native.Const\n{\n public enum %s\n {\n",
'footer': " }\n}\n",
'line_format': ' %s = %s,\n',
'out_file': os.path.join(os.path.dirname(__file__), 'Native', 'Const', '%s.cs'),
# prefixes for constant filenames of all archs - case sensitive
'arm.h': 'Arm',
'arm64.h': 'Arm64',
'unicorn.h': 'Common',
# prefixes for filenames of split_common values - case sensitive
'ARCH': 'Arch',
'MODE': 'Mode',
'ERR': 'Error',
'MEM': 'Memory',
'TCG': 'TCG',
'HOOK': 'Hook',
'PROT': 'Permission',
'comment_open': ' //',
'comment_close': '',
}
}
# markup for comments to be added to autogen files
MARKUP = '//>'
def gen(unicorn_repo_path):
global include
include_dir = os.path.join(unicorn_repo_path, 'include', 'unicorn')
templ = template["dotnet"]
for target in include:
prefix = templ[target]
outfile = open(templ['out_file'] %(prefix), 'wb') # open as binary prevents windows newlines
outfile.write((templ['header'] % (prefix)).encode("utf-8"))
if target == 'unicorn.h':
prefix = ''
for cat in split_common:
with open(templ['out_file'] %(templ[cat]), 'wb') as file:
file.write((templ['header'] %(templ[cat])).encode("utf-8"))
with open(os.path.join(include_dir, target)) as f:
lines = f.readlines()
previous = {}
count = 0
skip = 0
in_comment = False
for lno, line in enumerate(lines):
if "/*" in line:
in_comment = True
if "*/" in line:
in_comment = False
if in_comment:
continue
if skip > 0:
# Due to clang-format, values may come up in the next line
skip -= 1
continue
line = line.strip()
if line.startswith(MARKUP): # markup for comments
outfile.write(("\n%s%s%s\n" %(templ['comment_open'], \
line.replace(MARKUP, ''), templ['comment_close'])).encode("utf-8"))
continue
if line == '' or line.startswith('//'):
continue
tmp = line.strip().split(',')
if len(tmp) >= 2 and tmp[0] != "#define" and not tmp[0].startswith("UC_"):
continue
for t in tmp:
t = t.strip()
if not t or t.startswith('//'): continue
f = re.split('\s+', t)
# parse #define UC_TARGET (num)
define = False
if f[0] == '#define' and len(f) >= 3:
define = True
f.pop(0)
f.insert(1, '=')
if f[0].startswith("UC_" + prefix.upper()) or f[0].startswith("UC_CPU"):
if len(f) > 1 and f[1] not in ('//', '='):
print("WARNING: Unable to convert %s" % f)
print(" Line =", line)
continue
elif len(f) > 1 and f[1] == '=':
# Like:
# UC_A =
# (1 << 2)
# #define UC_B \
# (UC_A | UC_C)
# Let's search the next line
if len(f) == 2:
if lno == len(lines) - 1:
print("WARNING: Unable to convert %s" % f)
print(" Line =", line)
continue
skip += 1
next_line = lines[lno + 1]
next_line_tmp = next_line.strip().split(",")
rhs = next_line_tmp[0]
elif f[-1] == "\\":
idx = 0
rhs = ""
while True:
idx += 1
if lno + idx == len(lines):
print("WARNING: Unable to convert %s" % f)
print(" Line =", line)
continue
skip += 1
next_line = lines[lno + idx]
next_line_f = re.split('\s+', next_line.strip())
if next_line_f[-1] == "\\":
rhs += "".join(next_line_f[:-1])
else:
rhs += next_line.strip()
break
else:
rhs = ''.join(f[2:])
else:
rhs = str(count)
lhs = f[0].strip()
#print(f'lhs: {lhs} rhs: {rhs} f:{f}')
# evaluate bitshifts in constants e.g. "UC_X86 = 1 << 1"
match = re.match(r'(?P<rhs>\s*\d+\s*<<\s*\d+\s*)', rhs)
if match:
rhs = str(eval(match.group(1)))
else:
# evaluate references to other constants e.g. "UC_ARM_REG_X = UC_ARM_REG_SP"
match = re.match(r'^([^\d]\w+)$', rhs)
if match:
rhs = previous[match.group(1)]
if not rhs.isdigit():
for k, v in previous.items():
rhs = re.sub(r'\b%s\b' % k, v, rhs)
rhs = str(eval(rhs))
lhs_strip = re.sub(r'^UC_', '', lhs)
count = int(rhs) + 1
if target == "unicorn.h":
matched_cat = False
for cat in split_common:
if lhs_strip.startswith(f"{cat}_"):
with open(templ['out_file'] %(templ[cat]), 'ab') as cat_file:
cat_lhs_strip = lhs_strip
if not lhs_strip.lstrip(f"{cat}_").isnumeric():
cat_lhs_strip = lhs_strip.replace(f"{cat}_", "", 1)
cat_file.write(
(templ['line_format'] % (cat_lhs_strip, rhs)).encode("utf-8"))
matched_cat = True
break
if matched_cat:
previous[lhs] = str(rhs)
continue
if (count == 1):
outfile.write(("\n").encode("utf-8"))
if lhs_strip.startswith(f"{prefix.upper()}_") and not lhs_strip.replace(f"{prefix.upper()}_", "", 1).isnumeric():
lhs_strip = lhs_strip.replace(f"{prefix.upper()}_", "", 1)
outfile.write((templ['line_format'] % (lhs_strip, rhs)).encode("utf-8"))
previous[lhs] = str(rhs)
outfile.write((templ['footer']).encode("utf-8"))
outfile.close()
if target == "unicorn.h":
for cat in split_common:
with open(templ['out_file'] %(templ[cat]), 'ab') as cat_file:
cat_file.write(templ['footer'].encode('utf-8'))
if __name__ == "__main__":
if len(sys.argv) < 2:
print("Usage:", sys.argv[0], " <path to unicorn repo>")
sys.exit(1)
unicorn_repo_path = sys.argv[1]
if os.path.isdir(unicorn_repo_path):
print("Generating constants for dotnet")
gen(unicorn_repo_path)
else:
print("Couldn't find unicorn repo at:", unicorn_repo_path)
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