1 files changed, 115 insertions, 0 deletions
diff --git a/capstone/suite/synctools/instrinfo.py b/capstone/suite/synctools/instrinfo.py
new file mode 100755
index 000000000..17ac4ee4d
--- /dev/null
+++ b/capstone/suite/synctools/instrinfo.py
@@ -0,0 +1,115 @@
+#!/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")