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rea/tests/conformance/ghidra
Jay-Alexander Elliotandgithub-actions[bot] bddddccdee feat(native): admit bounded MIPS ELF analysis through Ghidra (#1362)
* feat(native): admit bounded MIPS ELF analysis through Ghidra

Retain MIPS ELF identity and interpretation through Evidence and snapshots.
Keep provider admission bounded to ELF32 ET_EXEC o32 MIPS32r2, without
implicitly widening Hopper, IDA or Windows P0 coverage. Add source-owned
fixtures and an optional real-provider verifier; real Ghidra verification
remains pending in this contribution environment.

Refs #718

* fix(ghidra): bound MIPS floating-point mode admission

Reject explicit EF_MIPS_FP64 and EF_MIPS_NAN2008 declarations until their
semantics have a real-provider verification lane. Add PSP PRX/Allegrex,
o64/EABI and floating-point-mode refusal regressions. Document that the
header gate is not a full .MIPS.abiflags check and advance the profile lane
identity to invalidate older interpretation bindings.

Validation: 24 standalone checks against the transpiled production profile
module passed; the two new flag cases failed before this change. Clang 17
and LLD compiled the source-owned fixture for both endian targets. The
complete Vitest/typecheck suite and real Ghidra verification remain pending.

Refs morluto/rea#718; PSP support remains follow-up morluto/rea#1330.

* fix(native): validate MIPS ABI records before Ghidra admission

Read bounded ELF32 PT_MIPS_ABIFLAGS and SHT_MIPS_ABIFLAGS records through
the already-open target handle. Preserve declared ABI fields, reject
conflicting/duplicate/truncated records, and keep missing records unknown.
Wire inspection into target resolution before provider selection. Require
compatible declarations for the deliberately narrow Ghidra lane and bind
all ABI fields into profile identity (v3) for snapshot invalidation.

Clang 17 produced eight source-owned fixtures spanning both byte orders
and FPXX/FP32/FP64/soft-float modes with identical ELF header flags. The
new reader and policy distinguish them. 24 focused regression test bodies
passed after TypeScript transpilation using node:test in place of Vitest;
strict isolated TypeScript checking of the reader and target/result types
passed. These are limited checks, not full Vitest/project typechecking or
real-Ghidra verification, which remain pending.

Advances morluto/rea#718. PSP/Allegrex remains morluto/rea#1330 follow-up.

* fix(native): repair MIPS integration boundaries and test resolver behavior

Keep ELF targets out of Hopper Mach-O preparation and scope existing PE fixture types correctly. Move ABI tests into the filesystem boundary lane, use shared cleanup, add resolver regressions, apply the pinned formatter, and register the real MIPS verifier through the existing package-command pattern. Validated with repository-pinned Node/npm, check:ci, actual focused Vitest, discovery and docs:check. Real Ghidra conformance remains pending.

* fix(test): honor caller-selected JDK in real MIPS verification

* test(native): strengthen MIPS Ghidra conformance

Cross-check the source-owned fixture with bounded GNU readelf inspection, compare production ELF/ABI interpretation and independent symbol addresses, and verify effective Ghidra language/compiler identity through existing public operations. Add a source-owned fixed-encoding probe for immediate and conditional branch checks plus global/string byte assertions.

Add 16 assertion/producer-boundary regression cases without widening production admission, changing provider contracts, or introducing proprietary dependencies. Local focused suite: 99 passed, one existing root-permission test skipped. Typecheck, lint/module boundaries, formatting and 700-file discovery pass; full hosted checks and real Ghidra verification remain pending for this checkpoint.

* fix(ghidra): preserve native-tool architecture checks after MIPS integration

The conflict-free upstream merge failed TypeScript compilation because includes on the union of MIPS-only and other architecture arrays requires never. Use equality-based membership without casts or changing accepted native hosts. Extend the existing native-decompiler rejection table with a MIPS executable at a Linux x64 tool path; retain upstream FAT and unknown-header behavior. Hosted verification follows this commit; no success is claimed yet.

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-10-10 23:04:27 +08:00
..

Ghidra conformance corpus

These source-owned fixtures are compiled at verification time; generated binaries and Ghidra projects are never committed.

  • inventory.c produces separate x86-64 debug and stripped ELF executables. It covers imports, an external puts function, linker thunks, source symbols, direct calls, a targetless callback call, two referenced strings, and a multi-block branch.
  • entry-aliases.c preserves secondary imported entry labels, a bare-hex alias, and an interior label. The native CLI/MCP lane verifies entry selection, annotation, interior-label rejection, and unchanged source bytes.
  • cross-format.c is freestanding so the verifier can produce AArch64 ELF, x86-64 PE, and x86-64 Mach-O targets from the same semantics. It preserves an exported entry, direct and indirect calls, a volatile string reference, and a multi-block branch across loaders.

scripts/verify-real-ghidra.mjs uses cc, clang, and lld-link by default; REA_CC, REA_CLANG, and REA_LLD_LINK can select alternate commands. The verifier requires the verified bring-your-own Ghidra 12.1.4 installation through GHIDRA_INSTALL_DIR and validates header classification before starting the provider. Provider admission accepts the rest of the 12.1.x line; this lane does not.

Conformance compares semantic facts: provider/profile identity, function classification, resolved call edges, typed references, strings/xrefs, and CFG topology. It only requires provider pseudocode and assembly to be non-empty, bounded, and address-bearing; it never compares their text with Hopper. The callback fixture also proves that an unresolved targetless flow is not silently promoted to a direct callee. Every target runs in a separate owned project and must leave no process, socket, project, or runtime root after close.