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11
Commits
| Author | SHA1 | Message | Date | |
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 morlutoandAurelio Bernal
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9387282274 |
fix(ghidra): reconcile GNU MIPS ABI declarations
Parse bounded GNU file-scope FP/MSA attributes once, retain absent versus uninspected declarations, reject conflicts and unsupported argument ABIs, and include observed facts in profile identity. LE/BE filesystem and profile regressions pass; real Ghidra/MIPS behavior remains unverified. Fixes #3096 Co-authored-by: Aurelio Bernal <aurelio@bernalr.com> |
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morluto
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d4bd65c53c |
fix(providers)!: preserve readiness, coverage, and diagnostic ownership
Share tagged readiness observations, retain partial provider facts, authenticate bridge identity, bound diagnostics, and preserve cancellation and lost-session reasons. Fail closed for unparsed MIPS ABI attributes and macOS saved Hopper databases without a script-capable bridge route. Reviewed fixes: #2010, #2108, #2513, #2695, #2731, #2771, #2828, #2867, #2868, #2870, #2880, #2919, #2945, #2961, #2981, #2998, #3000, #3002. Validation: 285 focused source/boundary tests passed. Real Ghidra, IDA, Linux Hopper, and Windows provider runs were not repeated. BREAKING CHANGE: MIPS targets with unresolved GNU ABI attributes and saved Hopper databases on macOS are refused rather than advertised as supported. |
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a4b8e9ccee |
feat(ghidra): admit recordless legacy MIPS32 ELFs with a pinned 32-bit language (#1898)
* feat(ghidra): admit recordless legacy MIPS32 ELFs with a pinned 32-bit language Firmware built with pre-ABI-flags GNU toolchains declares EF_MIPS_ARCH_32 with an unspecified ABI field and no PT_MIPS_ABIFLAGS record. The lane refused them before provider selection, and Ghidra's own header auto-selection picks a 64-bit R6 language for exactly these files. Admit ELF32 ET_EXEC headers with EF_MIPS_ARCH_32 or EF_MIPS_ARCH_32R2, an unspecified ABI field, EF_MIPS_ABI2 clear and no observed ABI flags record. o32 is recorded as an inferred analysis assumption (mips_abi_basis), floating-point ABI semantics stay unverified, and the existing refusals (FP64, NAN2008, ASEs, machine variants, ELF64) are unchanged. The profile pins -processor MIPS:<LE|BE>:32:default through a provider-pinned-v1 selection the bridge-reported language_id is checked against after import; a caller-selected REA_GHIDRA_LANGUAGE_ID still wins. The lane identity is versioned elf32-exec-arch32-legacy-pinned-v1. verify:ghidra:mips gains a recordless legacy round for both byte orders that strips the ABI record declarations from a real mips32 fixture, checks REA's interpretation against GNU readelf, asserts the pinned language after import and the retained assumption limitations through a snapshot round-trip. Fixes #1620 * fix(ghidra): require an inspected absence for the recordless MIPS lane Address review: undefined ABI flags means the record was not inspected, not that none exists. Only an inspected absence (null) establishes the recordless legacy admission; a merely unobserved record keeps its specific refusal. Also document the legacy admission and its pinned language in the MIPS provider guide. * fix(ghidra): tighten the recordless MIPS admission boundaries Address review: a recordless-looking header whose ABI-record inspection left declaration sources unexamined (carved ELF with a partial section table and no program-header record) no longer establishes the recordless admission; it is refused with the inspection limitation retained. An EF_MIPS_ARCH_32 header that declares an ABI is refused rather than relabeled through the 32R2 declared-ABI lane. * fix(ghidra): reject EF_MIPS_ABI_ON32 from the recordless MIPS lane Address review: bit 0x40 declares the old n32 ABI. A recordless header carrying it was admitted with the inferred-o32 assumption even though the header itself declares n32; the recordless shape now requires the bit clear and refuses it with a specific constraint. * fix(ghidra): keep recordless relocatable MIPS objects off the legacy lane The recordless admission now requires ET_EXEC: the lane and its verification cover executable firmware images, and a recordless ET_REL object must stay on the declared-ABI path instead of inheriting the inferred-o32 assumption under an executable lane id. The ABI-record requirement paragraph is scoped to the declared-ABI lane so it no longer contradicts the recordless admission documented above it. * fix(ghidra): name the ET_EXEC scope for recordless objects and probe the legacy lane A recordless relocatable object is not an incomplete inspection, so its refusal now names the ET_EXEC scope of the legacy admission instead of claiming unavailable ABI headers remain unknown. The recordless legacy verifier round reads the probe pair and applies the full assertMipsProbe oracle like the standard round, and its report keeps the independent GNU readelf receipt beside the fixture facts. * fix(ghidra): retain the concrete ELF32 legacy compiler pin * fix(ghidra): bind legacy profiles to fully admitted targets --------- Co-authored-by: BaaRai <baarai@users.noreply.github.com> Co-authored-by: morluto <76467478+morluto@users.noreply.github.com> |
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记得吃中饭
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9c14999efd |
feat(ghidra): support raw NMOS 6502 analysis (#2079)
* feat(ghidra): admit raw NMOS 6502 analysis * test(ghidra): require verified POSIX verifier cleanup * test(ghidra): verify 6502 low-memory raw imports * docs(skill): document raw NMOS 6502 support * fix(ghidra): preserve requested Windows raw source paths * docs(ghidra): include raw 6502 in Windows installation scope * test(ghidra): verify Windows raw junction rejection through CLI and MCP * fix(validation): make fixtures portable and preserve explicit Codex home * fix(ghidra): attest raw mapping state and address space * fix(ghidra): align diagnostics and regression groups * fix(ghidra): bind raw attestation to language address space * chore(ghidra): avoid verifier insertion conflict * docs(ghidra): align linked raw admission guides * fix(ghidra): retain 6502 verifier workspace on failure * test(ghidra): isolate Windows authority doctor fixture * fix(binary): re-admit Windows raw paths on session reopen * test(binary): require fresh provider execution after path change * Constrain 6502 to raw lifecycle and snapshot targets * Bypass saved reads for unadmitted Windows paths * Guard direct CLI snapshot replay on Windows paths * fix(snapshot): gate Windows Ghidra replay on native admission * fix(snapshot): constrain nested 6502 subjects to raw images * test: make dyld slice fixtures portable |
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Aurelio Bernal
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eaf88aca2a |
test(ghidra): require pending multi-HI16 coverage in the real MIPS relocatable lane (#1974)
* test(ghidra): require pending multi-HI16 coverage in the real MIPS relocatable lane Post-merge review on #1950: the relocation oracle exposes coverage.multiple_hi16, but the real-Ghidra lane never required it, and Clang's C output never produces a LO16 that resolves several pending HI16s. Ghidra's loader could therefore mishandle that stream while the lane still passed, although most GCC-built kernel modules checked contain it. The relocatable fixture adds an assembly block with two lui %hi(rea_mips_rel_carry); LLVM's relocation sort then leaves one HI16 pending until a later LO16 that resolves it together with another HI16, including the carry. The lane now requires multiple_hi16: false on the previous fixture, true for all three variants (LE, BE, soft-float module) on real Ghidra 12.1.4. * test(ghidra): make the MIPS multi-HI16 fixture independent of relocation sorting Review on #1974: the block used two %lo of rea_mips_rel_carry, a symbol with other %lo uses, so the relocation stream depended on the assembler's HI16/LO16 sort. Clang 21 happened to leave a HI16 pending; Clang 17 (per review) and GNU as 2.45 (checked here: HI@4 LO@8 HI@0 LO@10) pair each HI16 with its own LO16, so multiple_hi16 stays false and the lane fails. Use a dedicated symbol with two %hi and exactly one %lo. Any assembler that orders each HI16 before a matching LO16 must then emit both HI16s ahead of that single LO16: Clang 21 gives HI@0 HI@4 LO@8, GNU as 2.45 gives HI@4 HI@0 LO@8. The real-Ghidra lane passes for LE, BE and the soft-float module variant with multiple_hi16 true. |
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e9fe6437a7 |
feat(ghidra): admit verified MIPS16 shared ELF images
Admit the verified ELF32 o32 MIPS32r2 MIPS16 shared-image profile after complete source load and relocation inspection. Preserve caller-selected bytes, pin the endian-matched language, and report per-address decoder context. Refuse unverified relocation shapes with explicit reasons. Verified on Linux x64 with Ghidra 12.1.4: eight source-owned public CLI/MCP controls, original-artifact instruction/pseudocode/export replay, snapshot restore and owned cleanup. 152 integrated focused tests, static checks and documentation checks passed. Fixes #1851 Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com> Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com> |
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Aurelio Bernalandmorluto
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290d301ec7 |
feat(ghidra): admit relocatable MIPS32r2 ELF objects (#1950)
* feat(ghidra): admit soft-float MIPS32r2 ELF with integer-register float storage Soft-float o32 executables (Linux kernel builds, bare-metal firmware) were refused because their ABI flags record declares no CPR1 and FP ABI 3. Ghidra's MIPS32 compiler specifications model only hard-float o32, so typed float/double signatures (DWARF) would be bound to $f12/$f14/$f0 and the decompiler loses the real dataflow: `return sel ? a : b` decompiled to `return in_f0;`, and callers passed phantom FPU inputs. Admit ELF32 ET_EXEC o32 MIPS32r2 targets whose ABI record declares soft-float with no CPR1, and commit `mips_soft_float_storage: o32-integer-registers-v1` in their analysis profile only (hard-float profile digests are unchanged). ReaGhidraMipsSoftFloat.java runs after auto-analysis and, for each function with a float/double formal type, either keeps the types with the storage Ghidra's o32 model assigns to a same-size integer (pair alignment, stack spill), or, for auto-parameters such as hidden struct-return pointers, swaps float types for same-size integers under dynamic storage. No function is left on hard-float storage. The report is written last; the provider client requires it exactly when the profile commits the policy and refuses the session before any operation otherwise. Verification: real Ghidra 12.1.4 lane (verify:ghidra:mips) now builds hard- and soft-float fixtures in both byte orders and checks exact parameter/return storage through inspect_native_api, caller constants, snapshot profile and Evidence outcome; test:fast, verify:package and an installed-tarball soft-float run pass. * fix(ghidra): model soft-float MIPS as a prototype for every typed callable Review feedback on #1949: rewriting storage per Function left external functions and indirect calls through typed function pointers on Ghidra's hard-float o32 prototype, which still read $f12/$f14/$f0 while the session reported success. A negative control confirms it: without the change, `(*rea_mips_soft_callback)(8.5f, 9.5f, sel)` decompiles to `(*rea_mips_soft_callback)(in_f12, in_f14, sel)`. ReaGhidraMipsSoftFloat.java now derives a `__rea_soft_float` prototype from the program's own default o32 model (encoded, float pentries and float-consuming rules removed, so byte-order-specific aggregate rules and the hidden struct-return pointer are kept), installs it as a specification extension, and assigns it with dynamic storage to every non-thunk function, external function and function-pointer definition whose formal types use float or double. Thunks follow their targets. Float types are kept everywhere, so the integer-retype fallback is removed. The script fails without writing its report if the derived prototype or any reassigned function still uses an FPU register. The policy becomes `o32-soft-float-prototype-v1` with a {functions, definitions} report. The soft-float fixture adds an indirect call through a typed pointer; the real-Ghidra lane requires its constants with no FPU inputs and the struct return's `float scale` in $a1. * test(ghidra): pin ODDSPREG acceptance for soft-float MIPS ABI records Review on #1949 suggested requiring flags1 == 0 for soft-float, since MIPS_AFL_FLAGS1_ODDSPREG names CPR1 registers. GCC 5.2 kernel modules, LLVM/Rust firmware and Clang -msoft-float objects all record flags1 = 1 with FP ABI soft-float: it is the MIPS32 o32 toolchain default and selects nothing without CPR1. Keep accepting it, say why at the check, and test that soft-float with ODDSPREG is admitted while any other general flag is refused. * feat(ghidra): admit relocatable MIPS32r2 ELF objects Linux MIPS kernel modules (.ko) and other ELF32 o32 MIPS32r2 ET_REL objects were refused by the Ghidra MIPS lane. Ghidra's ELF loader already places each allocated section and applies REL relocations; this admits ET_REL alongside ET_EXEC (ET_DYN and PRX stay refused) under its own support lane, `elf32-rel-o32-arch32r2-standard-v1`, so executable targets keep theirs. Relocatable sessions carry limitations: addresses are analysis coordinates, undefined symbols live in Ghidra's EXTERNAL block, and HI16 relocations report PARTIAL because Ghidra applies them with their paired LO16. Verification: new `verify:ghidra:mips-relocatable` real-Ghidra lane builds -c -G0 objects in both byte orders plus a soft-float -mlong-calls module variant. GNU readelf supplies sections, symbols and REL entries; every relocation in an allocated section must encode S + A in the loaded word (S from Ghidra placement, A from original bytes), with HI16/LO16 checked as the effective address each LO16 forms, and coverage of a shared HI16, a LO16 carry, external code/data and R_MIPS_32 is asserted. The executable lane, unit suites pass, and on 30 real .ko files 54,972 relocations matched (93 reference empty sections and are not checkable). * fix(ghidra): verify every MIPS HI16 and archive-typed soft-float externals Review feedback on #1950: - The relocation oracle kept one pending HI16, so a second HI16 before the LO16 that resolves both overwrote the first, and unrelated relocations cleared it; the earlier site's high half and carry were never compared with S + A. Every HI16 now waits for the next LO16 of its symbol, which checks all of them; later LO16s reuse those HI16s, and a HI16 left unresolved at a section end fails. On 30 real soft-float kernel modules, 24 contain several HI16s per LO16; all 54,972 placed relocations match. - External callees with float prototypes: the relocatable fixture now calls powf, whose prototype Ghidra's C library archive applies by name. Every variant must decompile `powf(1.5,2.5)` without FPU inputs, and the soft-float module variant must report that __rea_soft_float covered it (with the external step removed it decompiles as `powf(param_1,param_2)`). `-fno-builtin` keeps the call from being folded. Also updates the module variant's expected soft-float policy to `o32-soft-float-prototype-v1`. --------- Co-authored-by: morluto <76467478+morluto@users.noreply.github.com> |
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Aurelio Bernal
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5e219de441 |
feat(ghidra): admit soft-float MIPS32r2 ELF with integer-register float storage (#1949)
* feat(ghidra): admit soft-float MIPS32r2 ELF with integer-register float storage Soft-float o32 executables (Linux kernel builds, bare-metal firmware) were refused because their ABI flags record declares no CPR1 and FP ABI 3. Ghidra's MIPS32 compiler specifications model only hard-float o32, so typed float/double signatures (DWARF) would be bound to $f12/$f14/$f0 and the decompiler loses the real dataflow: `return sel ? a : b` decompiled to `return in_f0;`, and callers passed phantom FPU inputs. Admit ELF32 ET_EXEC o32 MIPS32r2 targets whose ABI record declares soft-float with no CPR1, and commit `mips_soft_float_storage: o32-integer-registers-v1` in their analysis profile only (hard-float profile digests are unchanged). ReaGhidraMipsSoftFloat.java runs after auto-analysis and, for each function with a float/double formal type, either keeps the types with the storage Ghidra's o32 model assigns to a same-size integer (pair alignment, stack spill), or, for auto-parameters such as hidden struct-return pointers, swaps float types for same-size integers under dynamic storage. No function is left on hard-float storage. The report is written last; the provider client requires it exactly when the profile commits the policy and refuses the session before any operation otherwise. Verification: real Ghidra 12.1.4 lane (verify:ghidra:mips) now builds hard- and soft-float fixtures in both byte orders and checks exact parameter/return storage through inspect_native_api, caller constants, snapshot profile and Evidence outcome; test:fast, verify:package and an installed-tarball soft-float run pass. * fix(ghidra): model soft-float MIPS as a prototype for every typed callable Review feedback on #1949: rewriting storage per Function left external functions and indirect calls through typed function pointers on Ghidra's hard-float o32 prototype, which still read $f12/$f14/$f0 while the session reported success. A negative control confirms it: without the change, `(*rea_mips_soft_callback)(8.5f, 9.5f, sel)` decompiles to `(*rea_mips_soft_callback)(in_f12, in_f14, sel)`. ReaGhidraMipsSoftFloat.java now derives a `__rea_soft_float` prototype from the program's own default o32 model (encoded, float pentries and float-consuming rules removed, so byte-order-specific aggregate rules and the hidden struct-return pointer are kept), installs it as a specification extension, and assigns it with dynamic storage to every non-thunk function, external function and function-pointer definition whose formal types use float or double. Thunks follow their targets. Float types are kept everywhere, so the integer-retype fallback is removed. The script fails without writing its report if the derived prototype or any reassigned function still uses an FPU register. The policy becomes `o32-soft-float-prototype-v1` with a {functions, definitions} report. The soft-float fixture adds an indirect call through a typed pointer; the real-Ghidra lane requires its constants with no FPU inputs and the struct return's `float scale` in $a1. * test(ghidra): pin ODDSPREG acceptance for soft-float MIPS ABI records Review on #1949 suggested requiring flags1 == 0 for soft-float, since MIPS_AFL_FLAGS1_ODDSPREG names CPR1 registers. GCC 5.2 kernel modules, LLVM/Rust firmware and Clang -msoft-float objects all record flags1 = 1 with FP ABI soft-float: it is the MIPS32 o32 toolchain default and selects nothing without CPR1. Keep accepting it, say why at the check, and test that soft-float with ODDSPREG is admitted while any other general flag is refused. |
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e4407dbed5 |
feat(ghidra): admit bounded PSP ELF through installed Allegrex (#1599)
* feat(ghidra): admit bounded PSP ELF through installed Allegrex Build on merged generic MIPS without weakening its policy. Bind caller-installed processor files into the analysis profile, check them again before launch, force and verify PSP language selection, retain limitations, and extend the public CLI/MCP verifier with source-owned PSP and target-switching checks. Local actual focused Vitest: 102 passed, one existing permission skip. Hosted static and real-provider results are pending. * fix(ghidra): validate PSPSDK ABI records in PSP admission * test(ghidra): bind PSP ABI verification to snapshot profiles * test(ghidra): declare independent PSP ABI reader contract * test(ghidra): retain the PSP fixture discriminated type * test(ghidra): contextually type PSP metadata as the MIPS target variant * test(ghidra): keep carved firmware checks scoped to generic MIPS fixtures * style(ghidra): format PSP language-override guard * style(test): format PSP language override regressions * fix(ghidra): bound PSP extension enumeration before allocation --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: morluto <76467478+morluto@users.noreply.github.com> |
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Ysopwnable
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d6f698d8af |
fix(ghidra): admit carved MIPS ELF with incomplete section tables (#1629)
* fix(ghidra): inspect carved MIPS ABI declarations without missing sections * test: share filesystem fixtures and cleanup assertions |
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Jay-Alexander Elliotandgithub-actions[bot]
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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. --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> |