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