[SyzyASAN] Add support for LODS instruction.

syzygy/agent/asan/generate_memory_interceptors.py

 # Copyright 2015 Google Inc. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 568 matching lines @@
 
 
 # The string accessors generated.
 _STRING_ACCESSORS = [
     ("cmps", "_repz_", "ecx", _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 4, 1),
     ("cmps", "_repz_", "ecx", _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 2, 1),
     ("cmps", "_repz_", "ecx", _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 1, 1),
     ("cmps", "_", 1, _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 4, 1),
     ("cmps", "_", 1, _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 2, 1),
     ("cmps", "_", 1, _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 1, 1),
+    ("lods", "_repz_", "ecx", _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 4, 1),
+    ("lods", "_repz_", "ecx", _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 2, 1),
+    ("lods", "_repz_", "ecx", _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 1, 1),
+    ("lods", "_", 1, _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 4, 1),
+    ("lods", "_", 1, _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 2, 1),
+    ("lods", "_", 1, _ASAN_READ_ACCESS, _ASAN_READ_ACCESS, 1, 1),
     ("movs", "_repz_", "ecx", _ASAN_WRITE_ACCESS, _ASAN_READ_ACCESS, 4, 0),
     ("movs", "_repz_", "ecx", _ASAN_WRITE_ACCESS, _ASAN_READ_ACCESS, 2, 0),
     ("movs", "_repz_", "ecx", _ASAN_WRITE_ACCESS, _ASAN_READ_ACCESS, 1, 0),
     ("movs", "_", 1, _ASAN_WRITE_ACCESS, _ASAN_READ_ACCESS, 4, 0),
     ("movs", "_", 1, _ASAN_WRITE_ACCESS, _ASAN_READ_ACCESS, 2, 0),
     ("movs", "_", 1, _ASAN_WRITE_ACCESS, _ASAN_READ_ACCESS, 1, 0),
     ("stos", "_repz_", "ecx", _ASAN_WRITE_ACCESS, _ASAN_UNKNOWN_ACCESS, 4, 0),
     ("stos", "_repz_", "ecx", _ASAN_WRITE_ACCESS, _ASAN_UNKNOWN_ACCESS, 2, 0),
     ("stos", "_repz_", "ecx", _ASAN_WRITE_ACCESS, _ASAN_UNKNOWN_ACCESS, 1, 0),
     ("stos", "_", 1, _ASAN_WRITE_ACCESS, _ASAN_UNKNOWN_ACCESS, 4, 0),
@@ skipping 217 matching lines @@
 def main():
   interceptors_asm = _GenerateInterceptorsAsmFile()
   redirectors_asm = _GenerateRedirectorsAsmFile()
 
   _WriteFile('gen/memory_interceptors_impl.asm', interceptors_asm)
   _WriteFile('gen/memory_redirectors.asm', redirectors_asm)
 
 
 if __name__ == '__main__':
   main()