Commit Graph

4 Commits

Author SHA1 Message Date
MechaCat02
89f5f7e4a9 M2: MSVC C++ demangler + demangled_names DB table
Adds an MSVC name-demangling layer in front of M3's vtable / RTTI work:
- New `xenia_analysis::demangle` wraps the `msvc-demangler` crate (a Rust
  port of LLVM's `MicrosoftDemangle.cpp`). `demangle()` short-circuits on
  non-mangled inputs (`?` prefix check); `demangle_or_raw()` always returns
  a record (raw passthrough on parse failure).
- Heuristic split of the formatted demangled string into structured fields
  `(namespace_path, class_name, method_name, params_signature)`. Top-level
  paren / template-bracket aware, so `a::b<c::d>::e` and signatures with
  templated arg types parse correctly.
- DB: new `demangled_names(address, mangled, raw_demangled, namespace_path,
  class_name, method_name, params_signature)` with indices on address /
  class_name / method_name. Populated from any label whose name starts with
  `?` plus any import name that happens to be mangled.

For Sylpheed (a fully stripped binary) this table is empty out-of-the-box;
the layer's value lands in M3, which will append rows for every RTTI
TypeDescriptor name found in `.rdata`.

Tests 610→617 (+7 demangler unit tests covering early-out, raw fallback,
member function form, RTTI form, qname split, paren-template safety, and
top-level `::` splitting).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 20:02:21 +02:00
MechaCat02
70120465a3 M1: parse .pdata RUNTIME_FUNCTION; cross-validate function boundaries
Adds an authoritative function-boundary source from the linker:
- New `xenia_xex::pdata` parses .pdata 8-byte entries (BeginAddress + packed
  prolog/length/flags). Bit layout per Microsoft PE32 PowerPC spec: prolog in
  bits 0..7, function_length in bits 8..29, flags in 30..31.
- `func::analyze_with_pdata` unions pdata BeginAddresses into the candidate
  set, attaches `pdata_validated`/`pdata_length` to each `FuncInfo`, and trims
  any function whose `end` overlaps the next start (catches mis-merge where
  one row spanned two prologues — the audit-031 sub_824D23B0/sub_824D29F0
  case).
- DB: extends `functions` with `pdata_validated BOOLEAN`, `pdata_length BIGINT`;
  new table `pdata_entries`; index on pdata_validated.
- New `crates/xenia-analysis/SCHEMA.md` documents M1 layer + forward work.

Validation on Sylpheed: 25481 functions (was 12156) / 23073 pdata_validated /
0 orphans / 0 mis-merges. Audit-031 mis-merge resolved: sub_824D29F0 now has
its own row with `pdata_length=280` (70 dwords); sub_824D23B0 now correctly
ends at 0x824D2878 (`pdata_length=1224` matches prologue walk).

Tests 605→610. New 5-test pdata unit suite covers bit layout + sentinel +
out-of-range filtering + real-world layout round-trip.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 19:44:02 +02:00
MechaCat02
45e15d7885 xenia-analysis: unify disasm via xenia-cpu, split ingest/analyze, add sinks
The old src/ppc.rs that re-implemented PPC formatting collapses into
a 30-line shim that delegates to xenia-cpu's single-source-of-truth
disasm. A new disasm.rs wraps the shared iterator and feeds enriched
items (analysis context: function membership, xrefs, mnemonics) into
pluggable sinks.

Sinks split: text.rs (objdump-like output), json.rs (JSONL stream
matching the new xenia dis --json mode), duckdb.rs (the analysis DB
ingest). db.rs is restructured into ingest_instructions +
write_analysis_results so a run can stop after raw ingest, and a new
target_hex column lands on the instructions table. sql_views.rs adds
five additive views layered on top of the raw tables.

Tests: assert-based JSON-fixture goldens (disasm_goldens) and a
PRAGMA-table_info schema golden (db_schema_golden) covering all
ingested tables and the SQL views.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-01 16:28:06 +02:00
MechaCat02
c694bb3f43 Initial commit: xenia-rs workspace for Xbox 360 RE
Rust reimplementation of the xenia Xbox 360 emulator targeting reverse-
engineering and preservation, initially scoped to Project Sylpheed.

Includes:
- XEX2 loader (LZX decompression, AES decryption, PE parsing)
- XISO / XGD2 disc image VFS
- PPC interpreter with 200+ opcodes and VMX128 decoding
- Static analyzer: functions, cross-references, labels, asm + SQLite output
- HLE kernel covering the xboxkrnl/xam subset used by Sylpheed init
- Debugger with in-memory and SQLite-backed execution tracing
- `xenia-rs` CLI with extract/dis/exec commands that produce cumulative,
  superset SQLite databases and opt-in instruction/import/branch traces

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-16 23:14:56 +02:00