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#!/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])
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