Brummel
fbeeadeba5
Completes Embedding ABI — M2.1 (Tasks 1-4 committed c9a84b3 as the
known-good subset; this commit lands Tasks 5-9 from the re-dispatch
against the Boss-corrected plan).
- T5: swarm.c per-thread-ctx scalar-swarm capability demo (no
SHARED_CTX) + rc_accounting_shared_ctx_is_flagged_by_tsan added to
the item-1 harness driver (de-globalisation negative-control teeth,
where a shared ctx genuinely races on ctx->alloc_count).
- T6: M1 host.c migrated to the ctx ABI; embed_e2e green (s==25
through the ctx-threaded forwarder).
- T7: DESIGN.md current-state update (provisional-until-M3 narrowed
to the value/record layout; Decision-10 per-thread-ctx note);
docs_honesty-pinned sentence + (con Int) snippet preserved verbatim.
- T8: regression gate — workspace green; null-ctx fallback
byte-behaviour preserved.
- T9: bench-trio — compile_check/cross_lang clean; check.py
tracked-P2 noise only, causally exonerated (zero codegen/runtime
diff vs HEAD), NO baseline ratified.
Boss-verified directly (not on report trust): docs_honesty_pin 5/0,
design_schema_drift 8/0, embed_export_hash_stable 1/0,
embed_export_gate 6/0, embed_e2e 1/0, embed_staticlib_alloc_guard
2/0, print_no_leak_pin 1/0 + e2e rc_stats 4/0; the tsan coherent-stop
proven by hand — per-ctx clean (exit 0, 0 warnings), shared-ctx a
real ThreadSanitizer data race at rc.c:157/:208 (exit 66).
Known debt (journal + roadmap): DESIGN.md '## Embedding ABI (M1)'
header still says (M1) while the body mirrors M2 — out of Task 7's
scope-limited regions by design; post-audit doc-honesty tidy.
Milestone-close audit next.
43 lines
1.8 KiB
Rust
43 lines
1.8 KiB
Rust
//! M2 item 2 (capability demo). Builds the staticlib (rc) via the
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//! `ail` CLI, links swarm.c against lib<entry>.a + libailang_rt.a
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//! under -fsanitize=thread. Per-thread-ctx: tsan-clean, exit 0,
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//! every thread's result == serial oracle. (The de-globalisation
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//! negative control is in embed_rc_accounting_tsan.rs — item 1.)
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use std::process::Command;
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use std::path::PathBuf;
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fn ws_root() -> PathBuf {
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../..").canonicalize().unwrap()
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}
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fn ail_bin() -> &'static str { env!("CARGO_BIN_EXE_ail") }
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fn build_staticlib(outdir: &PathBuf) {
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std::fs::create_dir_all(outdir).unwrap();
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let st = Command::new(ail_bin())
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.args(["build", "examples/embed_backtest_step.ail",
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"--emit=staticlib", "--alloc=rc", "-o", outdir.to_str().unwrap()])
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.current_dir(ws_root()).status().expect("ail build");
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assert!(st.success(), "ail build --emit=staticlib failed");
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}
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#[test]
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fn scalar_swarm_per_ctx_is_tsan_clean_and_matches_oracle() {
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let outdir = std::env::temp_dir().join("ail_m2_swarm_ok");
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build_staticlib(&outdir);
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let root = ws_root();
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let bin = outdir.join("swarm_ok");
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let st = Command::new("clang").args([
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"-O1", "-g", "-fsanitize=thread", "-pthread",
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"-o", bin.to_str().unwrap(),
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root.join("crates/ail/tests/embed/swarm.c").to_str().unwrap(),
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&format!("-L{}", outdir.to_string_lossy()),
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"-lembed_backtest_step", "-lailang_rt",
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]).status().expect("clang");
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assert!(st.success(), "linking swarm.c failed");
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let out = Command::new(&bin).env("TSAN_OPTIONS", "halt_on_error=1")
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.output().expect("run swarm");
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assert!(out.status.success(),
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"per-thread-ctx swarm must exit 0 tsan-clean; stderr:\n{}",
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String::from_utf8_lossy(&out.stderr));
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}
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