| # C++ qualification v2 staging |
|
|
| This is an unofficial, versioned curation pipeline. Raw corpus files remain unchanged. |
| A staged binary is not automatically a qualified target, a scored function, or an official ranking entry. |
|
|
| ## Initial matrix |
|
|
| The counting unit is **project × platform**. There are 15 planned cells, 10 unique projects and 45 planned linked images. |
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| | Platform | Project and selected target | |
| |---|---| |
| | Linux arm64 | The Powder Toy `powder`; Snappy `libsnappy.so.1.2.2`; LevelDB `libleveldb.so.1.23.0`; SSDB `ssdb-server`; mergerfs `mergerfs`; OpenCC `opencc` | |
| | Windows x86_64 | Detours `withdll.exe`; WinSparkle `WinSparkle.dll`; Ninja `ninja.exe`; Snappy `snappy.dll`; OpenCC `opencc.exe`; Tracy `tracy-profiler.exe` | |
| | macOS arm64 | Ninja `ninja`; Snappy `libsnappy.dylib`; OpenCC `opencc` | |
| |
| All cells use O0, O2 and O2-noinline. Platform/compiler/architecture are separate fields. These modes are controlled compiler profiles, not promises of identical transformations across compilers. |
| The initial matrix contains userspace systems software, a server, a GUI application, CLI programs and libraries. It does not contain a kernel or driver target. Future expansion should fill that gap. |
| |
| ## Stage and qualification contract |
| |
| 1. A candidate plan records exact repository revisions and linked target names. |
| 2. Packaging checks verify files, hashes, debug identities, unchanged executable code and isolated debug-free inputs. |
| 3. Oracle checks retain original sources, preprocessed TUs, build commands and concrete project function identities. |
| 4. Complete qualification additionally requires missing provenance/ownership gates to pass. |
| 5. Scoring requires platform-native identity/type adapters and an agreed C++ type policy. No score is assigned merely because a gate cannot run. |
| |
| `scoring_ready=false` and `qualified=false` remain explicit in the preview. Inherited raw artifacts may lack full per-TU compiler/link command evidence. |
| The DWARF evidence exporter reuses the pinned DecBench reader at `8eeceb82088e97ace88d15a592db1ee76ab37384`. Its legacy variable summaries are **not** a complete source-level C++ type model. Original source and full debug information remain available for future policies. |
| Source CU ownership in inherited raw evidence is weaker than full per-declaration ownership; do not count its header-defined dependency functions as a proven project-only population. |
|
|
| ## Observed packaging defects |
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|
| - Hub qualification revision `d211137b0471b6534ccebef08677dcd947e0a6a4` has 24 files. Its legacy manifest has 1,086 paths, including PDB/object files in the binaries array; 1,065 referenced paths are absent. This legacy manifest cannot establish corpus completeness. |
| - Ninja upstream enables Release LTO after a global IPO setting. An initially empty dSYM passed `dwarfdump --verify`; a native source function count exposed the problem. The macOS recipe uses a custom Qualification build configuration, preserving the upstream source tree. |
| - Inherited SSDB O0 DWARF described optimized LevelDB dependency code, with no confirmed SSDB core functions. The SSDB recipe controls its actual CFLAGS and builds only the selected server and required libraries. |
| - Windows PE/PDB imports match CodeView GUID and Age, and preserve executable section bytes in isolated inputs. Native PDB coordinates retain section/offset evidence; they are not borrowed from DWARF names. |
| - Tracy also overrides a global IPO setting in its own configuration. The Windows recipe passes its explicit `NO_LTO=ON` option. The qualifier rejects project compilands marked LTCG. |
|
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| ## Reproduce |
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| Use Python 3.12 with `huggingface_hub`, `pyelftools` and `lief`; CMake; LLVM tools; Xcode for native macOS builds. |
| Set `PYTHONPATH` to a checkout of the pinned DecBench evaluator for the DWARF exporter. |
|
|
| ```sh |
| python scripts/prepare_qualification_sources.py --root /path/to/work --plan targets/qualification-v2/pilot.json |
| python scripts/build_qualification_macos.py --root /path/to/work --plan targets/qualification-v2/pilot.json |
| python scripts/stage_qualification_v2.py --root /path/to/work --plan targets/qualification-v2/pilot.json --raw-manifest /path/to/frozen/raw/manifest.json --local-raw /path/to/raw/cpp-compiled |
| python scripts/import_qualification_msvc.py --root /path/to/work --plan targets/qualification-v2/pilot.json |
| python scripts/verify_qualification_inputs.py --root /path/to/work |
| python scripts/inspect_qualification_dwarf.py /path/to/status.json --stage /path/to/work/staged/qualification-v2 --sources /path/to/work/sources |
| python scripts/seal_qualification_v2.py --root /path/to/work --plan targets/qualification-v2/pilot.json |
| ``` |
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| The existing Windows evidence importer defaults to the Detours/WinSparkle layout of GitHub Actions run `38208011147`. New builds use the same `PROJECT/MODE/` evidence layout and explicit run provenance: |
|
|
| ```sh |
| gh workflow run cpp-qualification-v2-windows.yml --repo sjkim1127/Decbench_SampleSet --ref codex/cpp-qualification-v2 \ |
| -f 'projects=["ninja","snappy","OpenCC","tracy"]' -f 'modes=["O0","O2","O2-noinline"]' |
| # Download each successful job's artifact into evidence/PROJECT/MODE before importing. |
| gh run download RUN_ID --repo sjkim1127/Decbench_SampleSet --name qualification-v2-ninja-O0 --dir evidence/ninja/O0 |
| python scripts/import_qualification_msvc.py --root /path/to/work --plan targets/qualification-v2/pilot.json \ |
| --projects ninja snappy OpenCC tracy --evidence-root /path/to/evidence --github-run RUN_ID |
| ``` |
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| The dedicated branch push trigger starts the full matrix; dispatch inputs support focused rebuilds. Jobs do not use `continue-on-error`. A failed build, missing PDB, failed preprocessing replay or failed PDB gate cannot become a passing artifact. |
| `build_qualification_windows.ps1` and `preprocess_qualification_msvc.py` require native Windows/MSVC. Their execution evidence is retained separately from preparation on macOS. |
| New evidence includes pinned tracked sources, effective compile commands, `/P` replay outputs and the hosted runner image version. PDB source ownership is compiland-based; template/header definitions still require per-procedure ownership before complete qualification. |
| Tracy's fetched dependency TUs retain preprocessed expansions, but dependency commit resolution, original archives and license files remain a separate provenance gate. A tracked main-tree source archive does not contain CPM's fetched source trees. |
| Docker recipes `build_qualification_tpt.sh` and `build_qualification_ssdb.sh` require the pinned revisions through environment variables and the workspace mounted at `/work`. |
|
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| ## Independent claims |
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| - Successful builds do not establish runtime parity. |
| - LLVM debug verification does not establish project ownership or full debug completeness. |
| - File/hash checks do not establish metric readiness. |
| - No new Fission production changes or decompiler scores are part of this curation task. |
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