| --- |
| license: other |
| license_name: mixed-permissive |
| license_link: https://huggingface.co/datasets/changliu8541/assemblage-rust/blob/main/LICENSES.csv |
| pretty_name: Assemblage-Rust |
| language: |
| - en |
| tags: |
| - binary-analysis |
| - reverse-engineering |
| - rust |
| - compilers |
| - debug-information |
| - decompilation |
| size_categories: |
| - 10K<n<100K |
| --- |
| |
| # Assemblage-Rust |
|
|
| Consider using your coding agent to test, download and process the data, repository size |
| is 1.5T and it is highly likely you only want a portion of it, but do remember to |
| check the agent outputs. |
|
|
| Produced by [Assemblage](https://arxiv.org/abs/2405.03991), a distributed |
| binary-corpus generator, a cite would be greatly appreciated! |
|
|
| Teh dataset contains**127,165 compiled Rust binaries** from **77,004 builds** |
| of **10,766 permissively |
| licensed GitHub repositories**, each paired with DWARF-derived function and line |
| metadata, the source tree it was compiled from, and for a subset of it comes with |
| compiler IRs. |
|
|
| **Unprocessed.** Raw build outputs, filtered only by license, not cleaned, |
| deduplicated or processed into normal Assemblage database+binary format. |
|
|
| ## Layout |
|
|
| One uncompressed tar per repository (~150 MB average). Everything inside is |
| already compressed — `zstd` for binaries and metadata, `gzip` for IR — so the tar |
| is pure container and you can stream one repository without fetching the rest. |
|
|
| ``` |
| repos/{owner}__{project}.tar builds: binaries, metadata, IR |
| repos2/{owner}__{project}.tar ... overflow, see note below |
| sources/{owner}__{project}.tar.gz the source tree each was built from |
| sources2/{owner}__{project}.tar.gz ... overflow |
| sources/manifest.json source file -> repo URL, commit, license, tar |
| index.jsonl one line per build: dir, tar, repo_url, commit, license, sizes |
| LICENSES.csv build directory -> repo URL, commit, license |
| ``` |
|
|
| > **Why `repos2/`** The Hub caps a directory at 10,000 files and this |
| > corpus has 10,766 repositories, so the remainder lives in `repos2/` / |
| > `sources2/`. Treat each pair as **one logical namespace**. The `tar` field in |
| > `index.jsonl` and the `file`/`tar` fields in `sources/manifest.json` are always |
| > the authoritative paths — resolve through those rather than assuming `repos/`. |
|
|
| `repos*/X.tar` pairs with `sources*/X.tar.gz` — same slug, so a repository's two |
| archives share a filename even when they sit in different directories. |
| Each tar expands to one directory per build: |
|
|
| ``` |
| {owner}_{project}_{sha12}-{flag}-{backend}-{mode}/ |
| ├── binaries/<name>.zst ELF binaries, zstd -12 |
| ├── metadata/assemblage_meta.json.zst DWARF functions, RVAs, line mappings |
| ├── ir/<stage>.tar.gz LLVM-IR / MIR / HIR / THIR / ASM (subset) |
| └── export.json provenance, license, byte counts |
| ``` |
|
|
| Build mode is in the directory name because `Debug`, `RelWithDebInfo` and |
| `Release` of the same commit are distinct binaries. |
|
|
| `sources/` ships the builder's own `git clone --recursive` snapshot, captured |
| **before** the build ran — no `target/`, and `.git` included, so history and the |
| exact tree hash are recoverable. Source correspondence is a property of the |
| release, not of an upstream that may be deleted or force-pushed later. |
|
|
| ## Quickstart |
|
|
| Always pass a token (`huggingface-cli login`, or `HF_TOKEN`): unauthenticated |
| requests get a lower rate limit, and it is the most common cause of throttling. |
|
|
| ```bash |
| # resolve a repository's paths from index.jsonl (they may be in repos/ or repos2/) |
| jq -r 'select(.repo_url=="https://github.com/tokio-rs/tokio") | .tar' index.jsonl | head -1 |
| # -> repos/tokio-rs__tokio.tar |
| |
| # one repository's builds + its source tree |
| huggingface-cli download changliu8541/assemblage-rust \ |
| repos/tokio-rs__tokio.tar sources/tokio-rs__tokio.tar.gz \ |
| --repo-type dataset --local-dir . |
| tar xf repos/tokio-rs__tokio.tar |
| mkdir -p src && tar xzf sources/tokio-rs__tokio.tar.gz -C src |
| |
| zstd -d */binaries/mytool.zst -o mytool |
| zstd -dc */metadata/assemblage_meta.json.zst | jq . |
| |
| # find builds without downloading anything |
| jq -r 'select(.license=="MIT License" and .has_ir) | .tar' index.jsonl | sort -u |
| ``` |
|
|
| ## Build matrix |
|
|
| | dimension | values | |
| |---|---| |
| | codegen backend | `llvm` (50,765) · `gcc` (16,064) · `cranelift` (10,175) | |
| | build mode | `RelWithDebInfo` (43,862) · `Release` (25,716) · `Debug` (7,426) | |
| | optimization | `O2` (20,143) · `O0` (14,825) · `Os` (12,474) · `O3` (11,512) · `Oz` (9,677) · `O1` (8,373) | |
|
|
| Toolchain: `nightly-2026-06-15`, symbol mangling `v0`, `x86_64-unknown-linux-gnu`. |
| **17,174 builds carry IR dumps** (`llvm-ir`, `mir`, `hir`, `thir`, `asm`), emitted |
| only for the LLVM `RelWithDebInfo` tiers and scoped to repository crates. |
|
|
| `assemblage_meta.json` records, per binary, every function recovered from DWARF: |
| `function_name` (mangled), `demangled_name`, `source_file`, `function_info` |
| (RVA ranges), `lines` (line -> RVA), and `origin` ∈ `in_repo | dependency | |
| stdlib | other`. |
| |
| ## Known limitations |
| |
| Please read these — they are properties of the data, not bugs to work around. |
| |
| 1. **~26% of builds with binaries have empty or partial function metadata.** DWARF |
| extraction runs under a wall-clock budget; over budget, the binary still ships |
| but its `Binary_info_list` entry is dropped. Check its length first. |
| 2. **Lib-only crates produce metadata but no binaries** — 17,891 builds (23%) are |
| metadata-only. |
| 3. **`Release` binaries carry little repository DWARF by design.** Repo symbols |
| survive in `.symtab`; most DWARF present belongs to the precompiled stdlib. |
| Filter on `origin`. |
| 4. **The `gcc` (cg_gcc) backend is a name/address corpus.** Mangling and symbol |
| tables are sound, but repo-level `source_file` and line info is largely absent |
| and stdlib paths are recorded relative. |
| 5. IR builds were compiled with `--emit` |
| 6. Binaries over 1 GiB uncompressed are excluded |
|
|
| ## Licensing and attribution |
|
|
| Every repository carries an OSI-recognized permissive license, verified by |
| database join against the scraper's license records. Copyleft |
| (GPL/AGPL/LGPL/MPL/EPL/EUPL) and unidentified-license repositories are |
| **excluded**. |
|
|
| | license | builds | |
| |---|---| |
| | MIT | 55,324 | |
| | Apache-2.0 | 18,548 | |
| | Unlicense | 926 | |
| | BSD-3-Clause | 902 | |
| | BSD-2-Clause | 348 | |
| | CC0-1.0 | 302 | |
| | ISC | 190 | |
| | 0BSD | 186 | |
| | WTFPL | 133 | |
| | Blue Oak 1.0.0 | 62 | |
| | BSL-1.0 | 45 | |
| | MIT-0 | 28 | |
| | Zlib | 6 | |
| | Artistic-2.0 | 4 | |
|
|
| `LICENSES.csv` maps every build directory to its upstream URL, commit and license; |
| the same fields appear in each `export.json` and in `sources/manifest.json`. MIT, |
| BSD and Apache-2.0 require that copyright and license notices accompany |
| redistribution — because `sources/` ships each tree verbatim, those notices travel |
| **with** the data rather than only being pointed at. Shipped trees include `.git`, |
| so they also carry commit history and its author names and emails, as published by |
| those repositories on GitHub. |
|
|
| If you are an author of an included repository and want it removed, open a |
| discussion on this dataset and it will be taken out. |
|
|
| ## Changlog |
|
|
| - Aug 25th, 2027 Full dataset upload, 127k binaries. |
| - Aug 27th, 2027 If you are using the dataset version between Aug 25, 2026 to Aug 26th, 2026, the citation bib entry is **wrong**, **hallucinated** by my agent uploading the new dataset (Claude Opus 5), we sincerely apologize for this mistake. |
|
|
|
|
