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71 lines
3.3 KiB
C++
71 lines
3.3 KiB
C++
/* ###
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* IP: GHIDRA
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/// \file printjava.hh
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/// \brief Classes supporting the java-language back-end to the decompiler
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#ifndef __PRINTJAVA__
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#define __PRINTJAVA__
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#include "printc.hh"
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/// \brief Factory and static initializer for the "java-language" back-end to the decompiler
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///
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/// The singleton adds itself to the list of possible back-end languages for the decompiler
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/// and it acts as a factory for producing the PrintJava object for emitting java-language tokens.
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class PrintJavaCapability : public PrintLanguageCapability {
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static PrintJavaCapability printJavaCapability; ///< The singleton instance
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PrintJavaCapability(void); ///< Singleton constructor
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PrintJavaCapability(const PrintJavaCapability &op2); ///< Not implemented
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PrintJavaCapability &operator=(const PrintJavaCapability &op); ///< Not implemented
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public:
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virtual PrintLanguage *buildLanguage(Architecture *glb);
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};
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/// \brief The java-language token emitter
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///
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/// This builds heavily on the c-language PrintC emitter. Most operator tokens, the format of
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/// function prototypes, and code structuring are shared. Specifics of the java constant pool are handled
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/// through the overloaded opCpoolRefOp().
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///
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/// Java data-types are mapped into the decompiler's data-type system in a specific way. The primitives
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/// \b int, \b long, \b short, \b byte, \b boolean, \b float, and \b double all map directly. The
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/// \b char primitive is treated as a 2 byte unsigned integer. A TypeStruct object holds the field
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/// layout for a java class, then java objects get mapped as follows:
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/// - Class reference = pointer to TYPE_UINT
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/// - Array of \b int, \b long, \b short, or \b byte = pointer to TYPE_INT
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/// - Array of \b float or \b double = pointer to TYPE_FLOAT
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/// - Array of \b boolean = pointer to TYPE_BOOL
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/// - Array of class objects = pointer to TYPE_PTR
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///
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/// There are some adjustments to the printing of data-types and LOAD/STORE expressions
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/// to account for this mapping.
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class PrintJava : public PrintC {
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static OpToken instanceof; ///< The \b instanceof keyword
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static bool isArrayType(const Datatype *ct); ///< Does the given data-type reference a java array
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static bool needZeroArray(const Varnode *vn); ///< Do we need '[0]' syntax.
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virtual void printUnicode(ostream &s,int4 onechar) const;
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public:
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PrintJava(Architecture *g,const string &nm="java-language"); ///< Constructor
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virtual void pushTypeStart(const Datatype *ct,bool noident);
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virtual void pushTypeEnd(const Datatype *ct);
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virtual bool doEmitWideCharPrefix(void) const { return false; }
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virtual void adjustTypeOperators(void);
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virtual void opLoad(const PcodeOp *op);
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virtual void opStore(const PcodeOp *op);
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virtual void opCallind(const PcodeOp *op);
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virtual void opCpoolRefOp(const PcodeOp *op);
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};
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#endif
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