Make disassembler string tables read-only.

src/x64/disasm-x64.cc

Index: src/x64/disasm-x64.cc
diff --git a/src/x64/disasm-x64.cc b/src/x64/disasm-x64.cc
index dcbba9fc81af7c96060c77bc4c294adbfe1ed960..86e876a3a6d303d59f874bf8e2c735d6c20de1f5 100644
--- a/src/x64/disasm-x64.cc
+++ b/src/x64/disasm-x64.cc
@@ -252,7 +252,7 @@ static v8::base::LazyInstance<InstructionTable>::type instruction_table =
     LAZY_INSTANCE_INITIALIZER;
 
 
-static InstructionDesc cmov_instructions[16] = {
+static const InstructionDesc cmov_instructions[16] = {
   {"cmovo", TWO_OPERANDS_INSTR, REG_OPER_OP_ORDER, false},
   {"cmovno", TWO_OPERANDS_INSTR, REG_OPER_OP_ORDER, false},
   {"cmovc", TWO_OPERANDS_INSTR, REG_OPER_OP_ORDER, false},
@@ -1808,19 +1808,19 @@ int DisassemblerX64::InstructionDecode(v8::internal::Vector<char> out_buffer,
 //------------------------------------------------------------------------------
 
 
-static const char* cpu_regs[16] = {
+static const char* const cpu_regs[16] = {
   "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
 };
 
 
-static const char* byte_cpu_regs[16] = {
+static const char* const byte_cpu_regs[16] = {
   "al", "cl", "dl", "bl", "spl", "bpl", "sil", "dil",
   "r8l", "r9l", "r10l", "r11l", "r12l", "r13l", "r14l", "r15l"
 };
 
 
-static const char* xmm_regs[16] = {
+static const char* const xmm_regs[16] = {
   "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
   "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15"
 };