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>
55 lines
2 KiB
C++
55 lines
2 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 capability.hh
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/// \brief Infrastructure for discovering code extensions to the decompiler
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#ifndef __CAPABILITY_HH__
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#define __CAPABILITY_HH__
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#include "types.h"
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#include <vector>
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#include <string>
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namespace ghidra {
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using std::vector;
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using std::string;
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/// \brief Class for automatically registering extension points to the decompiler
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///
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/// This uses the C++ static initializer feature to automatically \e discover
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/// and register extension point. Code for an extension should provide
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/// a class that derives from CapabilityPoint and overrides the initialize() method.
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/// Additionally there should be a singleton static instantiation of this extension class.
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/// The extensions are accumulated in a list automatically, then the decompiler engine
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/// will ensure that the initialize() method is called on each extension, allowing it
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/// to complete its integration.
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class CapabilityPoint {
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static vector<CapabilityPoint *> &getList(void); ///< Retrieve the list of extension point singletons
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protected:
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CapabilityPoint(void); ///< Construct extension capability exactly once
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public:
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virtual ~CapabilityPoint(void) {} ///< Destructor
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/// \brief Complete initialization of an extension point
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///
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/// This method is implemented by each extension so it can do specialized integration
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virtual void initialize(void)=0;
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static void initializeAll(void); ///< Finish initialization for all extension points
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};
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} // End namespace ghidra
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#endif
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