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>
60 lines
2.6 KiB
C++
60 lines
2.6 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 ghidra_translate.hh
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/// \brief Class for fetching p-code from a Ghidra client
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#ifndef __GHIDRA_TRANSLATE_HH__
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#define __GHIDRA_TRANSLATE_HH__
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#include "translate.hh"
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#include "ghidra_arch.hh"
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namespace ghidra {
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/// \brief An implementation of Translate that queries a Ghidra client for p-code information
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///
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/// This class provides:
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/// - P-code for instructions and
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/// - Register names
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///
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/// by sending a request to a Ghidra client and decoding the response.
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/// Messages are generally based on an XML format, but p-code responses in particular
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/// have a tight internal encoding.
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class GhidraTranslate : public Translate {
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ArchitectureGhidra *glb; ///< The Ghidra Architecture and connection to the client
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mutable map<string,VarnodeData> nm2addr; ///< Mapping from register name to Varnode
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mutable map<VarnodeData,string> addr2nm; ///< Mapping from Varnode to register name
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const VarnodeData &cacheRegister(const string &nm,const VarnodeData &data) const;
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void decode(Decoder &decoder); ///< Initialize \b this Translate from a stream
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public:
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GhidraTranslate(ArchitectureGhidra *g) { glb = g; } ///< Constructor
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virtual void initialize(DocumentStorage &store);
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virtual const VarnodeData &getRegister(const string &nm) const;
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virtual string getRegisterName(AddrSpace *base,uintb off,int4 size) const;
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virtual string getExactRegisterName(AddrSpace *base,uintb off,int4 size) const;
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virtual void getAllRegisters(map<VarnodeData,string> ®list) const {
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throw LowlevelError("Cannot currently get all registers through this interface"); }
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virtual void getUserOpNames(vector<string> &res) const;
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virtual int4 oneInstruction(PcodeEmit &emit,const Address &baseaddr) const;
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virtual int4 instructionLength(const Address &baseaddr) const {
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throw LowlevelError("Cannot currently get instruction length through this interface"); }
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virtual int4 printAssembly(AssemblyEmit &emit,const Address &baseaddr) const {
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throw LowlevelError("Cannot dump assembly through this interface"); }
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};
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} // End namespace ghidra
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#endif
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