| #!/usr/bin/python |
| # print list of instructions LLVM inc files, for Capstone disassembler. |
| # this will be put into capstone/<arch>.h |
| # by Nguyen Anh Quynh, 2019 |
| |
| import sys |
| |
| if len(sys.argv) == 1: |
| print("Syntax: %s <GenAsmMatcher.inc>" %sys.argv[0]) |
| sys.exit(1) |
| |
| print("""/* Capstone Disassembly Engine, http://www.capstone-engine.org */ |
| /* This is auto-gen data for Capstone disassembly engine (www.capstone-engine.org) */ |
| /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */ |
| """) |
| |
| # lib/Target/X86/X86GenAsmMatcher.inc |
| # static const MatchEntry MatchTable1[] = { |
| # { 0 /* aaa */, X86::AAA, Convert_NoOperands, Feature_Not64BitMode, { }, }, |
| |
| # extract insn from GenAsmMatcher Table |
| # return (arch, mnem, insn_id) |
| def extract_insn(line): |
| tmp = line.split(',') |
| insn_raw = tmp[1].strip() |
| insn_mnem = tmp[0].split(' ')[3] |
| # X86 mov.s |
| if '.' in insn_mnem: |
| tmp = insn_mnem.split('.') |
| insn_mnem = tmp[0] |
| tmp = insn_raw.split('::') |
| arch = tmp[0] |
| # AArch64 -> ARM64 |
| if arch.upper() == 'AARCH64': |
| arch = 'ARM64' |
| return (arch, insn_mnem, tmp[1]) |
| |
| |
| |
| # extract all insn lines from GenAsmMatcher |
| # return arch, first_insn, insn_id_list |
| def extract_matcher(filename): |
| f = open(filename) |
| lines = f.readlines() |
| f.close() |
| |
| match_count = 0 |
| mnem_list = [] |
| insn_id_list = {} |
| arch = None |
| first_insn = None |
| |
| pattern = None |
| # first we try to find Table1, or Table0 |
| for line in lines: |
| if 'MatchEntry MatchTable0[] = {' in line.strip(): |
| pattern = 'MatchEntry MatchTable0[] = {' |
| elif 'MatchEntry MatchTable1[] = {' in line.strip(): |
| pattern = 'MatchEntry MatchTable1[] = {' |
| # last pattern, done |
| break |
| |
| # 1st enum is register enum |
| for line in lines: |
| line = line.rstrip() |
| |
| if len(line.strip()) == 0: |
| continue |
| |
| if pattern in line.strip(): |
| match_count += 1 |
| #print(line.strip()) |
| continue |
| |
| line = line.strip() |
| if match_count == 1: |
| if line == '};': |
| # done with first enum |
| break |
| else: |
| _arch, mnem, insn_id = extract_insn(line) |
| # skip pseudo instructions |
| if not mnem.startswith('__'): |
| # PPC |
| if mnem.endswith('-') or mnem.endswith('+'): |
| mnem = mnem[:-1] |
| |
| if not first_insn: |
| arch, first_insn = _arch, insn_id |
| |
| if not insn_id in insn_id_list: |
| # save this |
| insn_id_list[insn_id] = mnem |
| |
| if not mnem in mnem_list: |
| print('\t"%s", // %s_INS_%s,' %(mnem.lower(), arch, mnem.upper())) |
| mnem_list.append(mnem) |
| |
| #return arch, first_insn, insn_id_list |
| return arch, first_insn, insn_id_list |
| |
| # GenAsmMatcher.inc |
| #arch, first_insn, insn_id_list, match_lines = extract_matcher(sys.argv[1]) |
| arch, first_insn, insn_id_list = extract_matcher(sys.argv[1]) |
