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Claude
014e3b11d1
Trust-layer generalization (zero-regression verified on tokei):
- TargetSpec [build] uses an explicit {out} isolation-dir placeholder
instead of injected CARGO_TARGET_DIR, plus optional sanitizer/
sanitizer_binary templates. Nothing assumes cargo anymore.
- verdict rebuild_pristine_baseline, sanitizer_check, and harnessd
run_verdict candidate build all use {out} substitution. A target with
no sanitizer build caps accepts at needs-human-review.
- tokei/comrak target.toml migrated to the {out} form (CARGO_TARGET_DIR=
{out} + nightly ASan sanitizer command).
cJSON C target (v1.7.19, MIT):
- harness.c bench/golden driver (trust-layer; agent can patch workspace
cJSON.c but not the rig), compiled with clang against the patched tree.
- 5.6 MB deterministic corpus (gen-corpus.sh) + MANIFEST/GOLDEN pins.
- gates = hermetic Unity/CTest suite (19 tests pass); sanitizer =
ASan+UBSan; scripts/diff-fuzz-cjson.py for differential fuzzing.
coz causal profiler integration (SPEC §12):
- harness.c optional -DHOTPATH_COZ throughput progress point.
- scripts/install-coz.sh, coz-profile.sh, coz-summary.py; just coz/install-coz.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EcKPWQ3MQD4NdEHwar96u2
63 lines
2.3 KiB
Bash
63 lines
2.3 KiB
Bash
#!/bin/sh
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# Deterministically generate the cjson corpus — a large synthetic JSON
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# document exercising every parse path: nested objects/arrays, strings
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# with escapes and unicode, ints, floats (the strtod/sprintf hot path),
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# booleans, nulls. No randomness — byte-identical on every machine, so
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# the MANIFEST.sha256 pin is reproducible. Run from repo root:
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# sh corpora/cjson/gen-corpus.sh
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set -eu
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DIR="$(cd "$(dirname "$0")" && pwd)"
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OUT="$DIR/input/big.json"
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mkdir -p "$DIR/input"
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python3 - "$OUT" <<'PY'
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import json, sys
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# Deterministic: a fixed linear-congruential stream, no `random` module,
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# so output is identical everywhere.
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class Det:
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def __init__(self, seed=2463534242):
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self.s = seed
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def next(self):
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self.s ^= (self.s << 13) & 0xFFFFFFFF
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self.s ^= (self.s >> 17)
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self.s ^= (self.s << 5) & 0xFFFFFFFF
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return self.s & 0xFFFFFFFF
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def rng(self, n):
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return self.next() % n
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d = Det()
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WORDS = ["alpha","bravo","charlie","delta","echo","foxtrot","golf","hotel",
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"quote\"inside","tab\tchar","new\nline","back\\slash","unécode","☃snow"]
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def record(i):
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return {
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"id": i,
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"guid": f"{d.next():08x}-{d.next():04x}",
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"active": bool(d.rng(2)),
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"score": d.rng(1000000) / 1000.0, # float -> strtod/sprintf path
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"ratio": d.rng(1 << 30) / (1 << 30), # dense fractional float
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"count": d.rng(1 << 31) - (1 << 30), # signed int
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"name": WORDS[d.rng(len(WORDS))] + str(d.rng(9999)),
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"tags": [WORDS[d.rng(len(WORDS))] for _ in range(d.rng(6))],
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"coords": [d.rng(1 << 20) / 997.0 for _ in range(3)],
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"meta": None if d.rng(4) == 0 else {
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"created": d.next(),
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"nested": {"a": d.rng(100), "b": [d.rng(50) for _ in range(d.rng(4))]},
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},
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}
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doc = {
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"schema": "hotpath.cjson.corpus/v1",
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"generated_by": "gen-corpus.sh (deterministic)",
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"records": [record(i) for i in range(20000)],
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}
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with open(sys.argv[1], "w") as f:
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json.dump(doc, f, ensure_ascii=False, separators=(",", ":"))
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PY
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echo "wrote $OUT ($(wc -c < "$OUT") bytes)"
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# Pin the corpus and regenerate the manifest.
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( cd "$DIR/input" && find . -type f -print0 | sort -z | xargs -0 sha256sum ) > "$DIR/MANIFEST.sha256"
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echo "manifest: $DIR/MANIFEST.sha256"
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