| #!/usr/bin/python |
| # convert LLVM GenInstrInfo.inc for Capstone disassembler. |
| # by Nguyen Anh Quynh, 2019 |
| |
| import sys |
| |
| if len(sys.argv) == 1: |
| print("Syntax: %s <GenInstrInfo.inc> <AsmMatcher.info>" %sys.argv[0]) |
| sys.exit(1) |
| |
| |
| # lib/Target/X86/X86GenAsmMatcher.inc |
| # static const MatchEntry MatchTable1[] = { |
| # { 0 /* aaa */, X86::AAA, Convert_NoOperands, Feature_Not64BitMode, { }, }, |
| |
| # return (arch, mnem) |
| 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) |
| |
| # get (arch, first insn) from MatchTable |
| def get_first_insn(filename): |
| f = open(filename) |
| lines = f.readlines() |
| f.close() |
| count = 0 |
| for line in lines: |
| line = line.strip() |
| |
| if len(line) == 0: |
| continue |
| |
| # Intel syntax in Table1 |
| if 'MatchEntry MatchTable1[] = {' in line: |
| count += 1 |
| #print(line.strip()) |
| continue |
| |
| if count == 1: |
| arch, mnem = extract_insn(line) |
| return (arch, mnem) |
| |
| return (None, None) |
| |
| |
| arch, first_insn = get_first_insn(sys.argv[2]) |
| first_insn = first_insn.upper() |
| arch = arch.upper() |
| #print(arch, first_insn) |
| |
| print(""" |
| /* Capstone Disassembly Engine, http://www.capstone-engine.org */ |
| /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */ |
| |
| /*===- TableGen'erated file -------------------------------------*- C++ -*-===*\ |
| |* *| |
| |* Target Instruction Enum Values and Descriptors *| |
| |* *| |
| |* Automatically generated file, do not edit! *| |
| |* *| |
| \*===----------------------------------------------------------------------===*/ |
| |
| #ifdef GET_INSTRINFO_ENUM |
| #undef GET_INSTRINFO_ENUM |
| """) |
| |
| enum_count = 0 |
| meet_insn = False |
| |
| f = open(sys.argv[1]) |
| lines = f.readlines() |
| f.close() |
| |
| # 1st enum is register enum |
| for line in lines: |
| line = line.rstrip() |
| |
| if len(line.strip()) == 0: |
| continue |
| |
| if line.strip() == 'enum {': |
| enum_count += 1 |
| print(line.strip()) |
| continue |
| |
| line = line.strip() |
| if enum_count == 1: |
| if line == '};': |
| # done with first enum |
| break |
| else: |
| insn = None |
| if meet_insn: |
| # enum items |
| insn = line |
| elif line.startswith(first_insn): |
| insn = line |
| meet_insn = True |
| if insn: |
| print("\t%s_%s" %(arch, line)) |
| |
| print('};\n') |
| |
| print("#endif // GET_INSTRINFO_ENUM") |
