Fix printf formats

src/x87/disasm-x87.cc

 // Copyright 2011 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>
 
 #if V8_TARGET_ARCH_X87
 
+#include "src/base/compiler-specific.h"
 #include "src/disasm.h"
 
 namespace disasm {
 
 enum OperandOrder {
   UNSET_OP_ORDER = 0,
   REG_OPER_OP_ORDER,
   OPER_REG_OP_ORDER
 };
 
@@ skipping 297 matching lines @@
   int F7Instruction(byte* data);
   int D1D3C1Instruction(byte* data);
   int JumpShort(byte* data);
   int JumpConditional(byte* data, const char* comment);
   int JumpConditionalShort(byte* data, const char* comment);
   int SetCC(byte* data);
   int CMov(byte* data);
   int FPUInstruction(byte* data);
   int MemoryFPUInstruction(int escape_opcode, int regop, byte* modrm_start);
   int RegisterFPUInstruction(int escape_opcode, byte modrm_byte);
-  void AppendToBuffer(const char* format, ...);
-
+  PRINTF_FORMAT(2, 3) void AppendToBuffer(const char* format, ...);
 
   void UnimplementedInstruction() {
     if (abort_on_unimplemented_) {
       UNIMPLEMENTED();
     } else {
       AppendToBuffer("'Unimplemented Instruction'");
     }
   }
 };
 
@@ skipping 601 matching lines @@
     data++;
   } else if (*data == 0x2E /*cs*/) {
     branch_hint = "predicted not taken";
     data++;
   }
   bool processed = true;  // Will be set to false if the current instruction
                           // is not in 'instructions' table.
   const InstructionDesc& idesc = instruction_table_->Get(*data);
   switch (idesc.type) {
     case ZERO_OPERANDS_INSTR:
-      AppendToBuffer(idesc.mnem);
+      AppendToBuffer("%s", idesc.mnem);
       data++;
       break;
 
     case TWO_OPERANDS_INSTR:
       data++;
       data += PrintOperands(idesc.mnem, idesc.op_order_, data);
       break;
 
     case JUMP_CONDITIONAL_SHORT_INSTR:
       data += JumpConditionalShort(data, branch_hint);
@@ skipping 855 matching lines @@
       fprintf(f, "  ");
     }
     fprintf(f, "  %s\n", buffer.start());
   }
 }
 
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_X87