5152d0c9f7
Foundation for replacing fold's dead/abstract binary encoder with a real
SSA P-Code frontend. Verified root-cause gap: serializeBinaryIR() emits only
data-discovery nodes (sections/strings/imports/exports); the control-flow
BinaryExprKind values (BasicBlock/CallSite/...) are never constructed, so the
Z3-BB encoder's encodable filter is always empty and encodeBinaryBBs never
runs — hence 0 binary Z3 findings. The P-Code pipeline supersedes that path.
Phase 0 — docs/internal/ghidra-pcode-integration-research.md: P-Code opcode
core, the decompiler C++ embedding API (LoadImage/SleighArchitecture/Funcdata),
the CORE+DECCORE+SLEIGH source sets, no-bison finding, and pypcode as build
reference.
Phase 1 — vendored Ghidra decompiler at pinned commit (Ghidra_12.1_build,
7e89d94e34...) under third_party/ghidra-decompiler/ (cpp + AArch64 specs +
Apache-2.0 LICENSE + VENDOR.md + .gitignore for build artifacts). Validated by
hand on this clang-21/macOS toolchain:
- full SSA engine (CORE+DECCORE+SLEIGH, 80 files incl. heritage/funcdata/
action) compiles clean, -std=c++11 -O2, NO BFD, NO bison (generated
parsers are committed upstream; ruleparse isn't in the lib set);
- sleigh compiler builds; AArch64 .slaspec -> .sla compiles;
- tools/pcode_dump.cpp (custom LoadImage, no BFD) lifts the real arm64
sym._div_by_zero_direct to correct P-Code: `mov w9,#0 -> COPY(const 0)`,
`sdiv -> INT_SDIV(w8,w9)` — divisor zero-ness explicit in the data flow,
so the Phase-3 encoder proves div-by-zero trivially, multi-arch.
Not yet meson-wired (next step) and no fold-side IR/encoder yet (Phase 2-3);
this commit is the validated vendor + smoke tool.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
78 lines
3.5 KiB
C++
78 lines
3.5 KiB
C++
/* ###
|
|
* IP: GHIDRA
|
|
*
|
|
* 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,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/// \file printjava.hh
|
|
/// \brief Classes supporting the java-language back-end to the decompiler
|
|
|
|
#ifndef __PRINTJAVA_HH__
|
|
#define __PRINTJAVA_HH__
|
|
|
|
#include "printc.hh"
|
|
|
|
namespace ghidra {
|
|
|
|
/// \brief Factory and static initializer for the "java-language" back-end to the decompiler
|
|
///
|
|
/// The singleton adds itself to the list of possible back-end languages for the decompiler
|
|
/// and it acts as a factory for producing the PrintJava object for emitting java-language tokens.
|
|
class PrintJavaCapability : public PrintLanguageCapability {
|
|
static PrintJavaCapability printJavaCapability; ///< The singleton instance
|
|
PrintJavaCapability(void); ///< Singleton constructor
|
|
PrintJavaCapability(const PrintJavaCapability &op2); ///< Not implemented
|
|
PrintJavaCapability &operator=(const PrintJavaCapability &op); ///< Not implemented
|
|
public:
|
|
virtual PrintLanguage *buildLanguage(Architecture *glb);
|
|
};
|
|
|
|
/// \brief The java-language token emitter
|
|
///
|
|
/// This builds heavily on the c-language PrintC emitter. Most operator tokens, the format of
|
|
/// function prototypes, and code structuring are shared. Specifics of the java constant pool are handled
|
|
/// through the overloaded opCpoolRefOp().
|
|
///
|
|
/// Java data-types are mapped into the decompiler's data-type system in a specific way. The primitives
|
|
/// \b int, \b long, \b short, \b byte, \b boolean, \b float, and \b double all map directly. The
|
|
/// \b char primitive is treated as a 2 byte unsigned integer. A TypeStruct object holds the field
|
|
/// layout for a java class, then java objects get mapped as follows:
|
|
/// - Class reference = pointer to TYPE_UINT
|
|
/// - Array of \b int, \b long, \b short, or \b byte = pointer to TYPE_INT
|
|
/// - Array of \b float or \b double = pointer to TYPE_FLOAT
|
|
/// - Array of \b boolean = pointer to TYPE_BOOL
|
|
/// - Array of class objects = pointer to TYPE_PTR
|
|
///
|
|
/// There are some adjustments to the printing of data-types and LOAD/STORE expressions
|
|
/// to account for this mapping.
|
|
class PrintJava : public PrintC {
|
|
static OpToken instanceof; ///< The \b instanceof keyword
|
|
static bool isArrayType(const Datatype *ct); ///< Does the given data-type reference a java array
|
|
static bool needZeroArray(const Varnode *vn); ///< Do we need '[0]' syntax.
|
|
void resetDefaultsPrintJava(void); ///< Set options that are specific to Java
|
|
virtual void printUnicode(ostream &s,int4 onechar) const;
|
|
public:
|
|
PrintJava(Architecture *g,const string &nm="java-language"); ///< Constructor
|
|
virtual void resetDefaults(void);
|
|
virtual void docFunction(const Funcdata *fd);
|
|
virtual void pushTypeStart(const Datatype *ct,bool noident);
|
|
virtual void pushTypeEnd(const Datatype *ct);
|
|
virtual bool doEmitWideCharPrefix(void) const { return false; }
|
|
virtual void adjustTypeOperators(void);
|
|
virtual void opLoad(const PcodeOp *op);
|
|
virtual void opStore(const PcodeOp *op);
|
|
virtual void opCallind(const PcodeOp *op);
|
|
virtual void opCpoolRefOp(const PcodeOp *op);
|
|
};
|
|
|
|
} // End namespace ghidra
|
|
#endif
|