116 lines
2.9 KiB
Python
Executable File
116 lines
2.9 KiB
Python
Executable File
#!/usr/bin/python
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# convert LLVM GenInstrInfo.inc for Capstone disassembler.
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# by Nguyen Anh Quynh, 2019
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import sys
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if len(sys.argv) == 1:
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print("Syntax: %s <GenInstrInfo.inc> <AsmMatcher.info>" %sys.argv[0])
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sys.exit(1)
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# lib/Target/X86/X86GenAsmMatcher.inc
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# static const MatchEntry MatchTable1[] = {
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# { 0 /* aaa */, X86::AAA, Convert_NoOperands, Feature_Not64BitMode, { }, },
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# return (arch, mnem)
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def extract_insn(line):
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tmp = line.split(',')
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insn_raw = tmp[1].strip()
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insn_mnem = tmp[0].split(' ')[3]
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# X86 mov.s
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if '.' in insn_mnem:
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tmp = insn_mnem.split('.')
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insn_mnem = tmp[0]
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tmp = insn_raw.split('::')
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arch = tmp[0]
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# AArch64 -> ARM64
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if arch.upper() == 'AArch64':
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arch = 'ARM64'
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return (arch, insn_mnem)
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# get (arch, first insn) from MatchTable
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def get_first_insn(filename):
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f = open(filename)
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lines = f.readlines()
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f.close()
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count = 0
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for line in lines:
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line = line.strip()
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if len(line) == 0:
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continue
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# Intel syntax in Table1
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if 'MatchEntry MatchTable1[] = {' in line:
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count += 1
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#print(line.strip())
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continue
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if count == 1:
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arch, mnem = extract_insn(line)
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return (arch, mnem)
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return (None, None)
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arch, first_insn = get_first_insn(sys.argv[2])
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first_insn = first_insn.upper()
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arch = arch.upper()
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#print(arch, first_insn)
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print("""
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/* Capstone Disassembly Engine, http://www.capstone-engine.org */
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/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */
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/*===- TableGen'erated file -------------------------------------*- C++ -*-===*\
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|* *|
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|* Target Instruction Enum Values and Descriptors *|
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|* *|
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|* Automatically generated file, do not edit! *|
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|* *|
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\*===----------------------------------------------------------------------===*/
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#ifdef GET_INSTRINFO_ENUM
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#undef GET_INSTRINFO_ENUM
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""")
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enum_count = 0
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meet_insn = False
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f = open(sys.argv[1])
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lines = f.readlines()
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f.close()
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# 1st enum is register enum
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for line in lines:
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line = line.rstrip()
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if len(line.strip()) == 0:
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continue
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if line.strip() == 'enum {':
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enum_count += 1
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print(line.strip())
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continue
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line = line.strip()
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if enum_count == 1:
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if line == '};':
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# done with first enum
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break
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else:
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insn = None
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if meet_insn:
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# enum items
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insn = line
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elif line.startswith(first_insn):
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insn = line
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meet_insn = True
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if insn:
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print("\t%s_%s" %(arch, line))
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print('};\n')
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print("#endif // GET_INSTRINFO_ENUM")
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