Make disassembler string tables read-only.

src/arm64/disasm-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <assert.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "src/v8.h"
@@ skipping 1677 matching lines @@
 
   AppendToOutput("p%sl%d%s", ls, level, ks);
   return 6;
 }
 
 int Disassembler::SubstituteBarrierField(Instruction* instr,
                                          const char* format) {
   DCHECK(format[0] == 'M');
   USE(format);
 
-  static const char* options[4][4] = {
+  static const char* const options[4][4] = {
     { "sy (0b0000)", "oshld", "oshst", "osh" },
     { "sy (0b0100)", "nshld", "nshst", "nsh" },
     { "sy (0b1000)", "ishld", "ishst", "ish" },
     { "sy (0b1100)", "ld", "st", "sy" }
   };
   int domain = instr->ImmBarrierDomain();
   int type = instr->ImmBarrierType();
 
   AppendToOutput("%s", options[domain][type]);
   return 1;
@@ skipping 116 matching lines @@
   decoder.AppendVisitor(&disasm);
 
   for (byte* pc = start; pc < end; pc += v8::internal::kInstructionSize) {
     decoder.Decode(reinterpret_cast<v8::internal::Instruction*>(pc));
   }
 }
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_ARM64