Commit Graph
3 Commits
Author SHA1 Message Date
8052f8daf0 fix(elf): preserve virtual relocation identity (#9990)
* fix(elf): keep compressed storage out of decoded metadata facts

* fix(elf): preserve virtual relocation identity

Keep linked initializer backing and relocation values in their owning virtual
or ET_REL section coordinates. Replace the IL2CPP physical-copy materializer
with compact virtual value facts while preserving file-backed capacity.

Reuse initializer repairs and original regressions from ShuaixinHuang PRs
repair retains independent alias values instead of blanket alias refusal.

Co-authored-by: 帅鑫 Huang <1836656514@qq.com>

* fix(elf): admit compressed string tables the profile does not read

SHF_COMPRESSED string tables are rejected only when they name sections
or symbols. An unreferenced string table is not decoded, so it no longer
makes an otherwise analyzable ELF unsupported.

* fix(il2cpp): admit virtual pointer workspace before retention

* fix(elf): reject null relocation target sections

* fix(il2cpp): avoid decoding unrelated Mach-O words

* fix(il2cpp): preserve uncertainty in candidate scans

* fix(il2cpp): bound uncertain array candidates

* fix(il2cpp): preserve unknown registration candidates

* fix(il2cpp): classify type kinds before bound data

* fix(il2cpp): bind candidate counts to matching names

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Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: 帅鑫 Huang <1836656514@qq.com>
2026-11-11 18:13:18 +08:00
JANG BYUNGKUNandgensokyo-dev 3ce311757d feat(il2cpp): link generic method instances behind --generic-instances (#5785)
* feat(il2cpp): read generic containers on demand and render method spec names

Generic container indices and records are demand readers on the same metadata snapshot, so links that do not ask for generic instances allocate nothing. Type rendering keeps one graph walk with its workspace, depth and cycle guards; the C#-like names and the Il2CppDumper GetMethodSpecName names are two styles over it.

* feat(il2cpp): link generic method instances with admitted rows and kept issues

generic_instances links every genericMethodTable row through methodSpecs, genericInsts and genericMethodPointers, choosing the one CodeRegistration layout whose counts bound every row. The table is reserved against the report budget before any row is resolved; rows and issues are admitted before retention, and a contradicting row stays unknown with an address-backed issue instead of failing the link. Views page the rows by definition, state, address and name, unrequested and historical collections stay unknown, and Ghidra seeds fold instances after the definitions.

* feat(il2cpp): accept --generic-instances on the CLI and describe it in tool contracts

* docs(il2cpp): describe generic method instances and their limits

* fix(il2cpp): keep issued generic rows unknown and name their row

A method spec that contradicted the metadata still reported its pointer slot as code, while the schema and provider limitation promised unknown. Such rows now keep no address, every issue carries its genericMethodTable row, the domain validator requires unknown exactly on issued rows, and shared specs name one other row instead of all of them. The row-size lower bound moves to the metadata admission owner, the hex helper is shared, and budget wording says checked rather than reserved.

* test(il2cpp): reject ambiguous generic layouts and pin budget, yield and limit paths

* fix(il2cpp): keep unmapped generic slots per row and reject undeclared arguments

Layout selection no longer requires every genericMethodPointers slot to be
mapped; each row reads its own slot, so one unmapped slot leaves only that
row unknown with an issue. Method specs whose class or method argument count
differs from the owner's declared generic container are issued and unnamed.
Fixtures now declare the containers their generic rows fill.

* fix(il2cpp): page generic method issues instead of retaining them in summaries

Summaries keep generic_methods without its issues and count them in
counts.generic_method_issues; the generic_method_issues collection pages
them by rows, indices and fields, as code_gen_modules already does. Docs
also name the method_indices filter the request schema accepts.

* fix(il2cpp): read split generic arguments per slot and method containers on demand

Generic argument arrays may span adjacent loader ranges: admit them with
hasPointerArrayCoverage and read each slot through readPointer, instead of
requiring the whole array in one mapping.

Method generic container indices are read on demand from the method record,
like type containers, so no link path allocates a per-method column. An owner
whose container index is out of range now leaves the method spec unnamed with
an issue instead of naming it unchecked.

* fix(il2cpp): report generic entries past the address space at their row

A damaged methodSpecs or genericMethodPointers pointer could make a spec or
slot address exceed 64 bits. The issue kept that address, which the address
schema rejects, so inspection failed instead of leaving the row unknown.
Check the entry range first and attach the issue to the genericMethodTable
row (or its slot field).

* chore(il2cpp): remove unrelated formatting changes

* fix: restore adb float pattern and mobile fixture from main

The merge commit's lint-staged run rewrote these two main files: oxlint --fix
dropped the escape in [+\-], which is invalid under the RegExp v flag.

* fix(il2cpp): preserve unreadable generic method identities

* docs(il2cpp): record generic-instance workflow verification

* docs(il2cpp): qualify final integration checks

---------

Co-authored-by: gensokyo-dev <342580529+gensokyo-dev@users.noreply.github.com>
2026-10-24 16:19:05 +08:00
JANG BYUNGKUN 52d1a72af0 feat(il2cpp): link native methods and export Ghidra seeds
Link IL2CPP metadata names to native addresses and types through shared CLI/MCP workflows, with bounded queries and atomic Ghidra seed export.

Preserve the original implementation by 8rulerstar and follow-up correctness, resource, provenance, and CI dependency repairs. Verified against real Windows/Android artifacts, independent references, actual Ghidra, and focused CLI/MCP tests.

Fixes #5112.
2026-10-20 21:56:54 +08:00