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Extend event effects through add-building strip

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This commit is contained in:
Jan Petykiewicz 2026-04-19 01:46:59 -07:00
commit b2da02befa
7 changed files with 3319 additions and 1161 deletions
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13
tools/py/extract_event_effects.py
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@ -11,7 +11,7 @@ from pathlib import Path
TABLE_BASE_VA = 0x00610398
ROW_STRIDE = 0x6E
ROW_COUNT = 520
MAX_ROW_COUNT = 2048
IMAGE_BASE = 0x00400000
@ -27,17 +27,20 @@ def load_lng_labels(path: Path) -> dict[int, str]:
def extract_rows(exe_bytes: bytes, labels: dict[int, str]) -> list[dict[str, object]]:
table_offset = TABLE_BASE_VA - IMAGE_BASE
rows: list[dict[str, object]] = []
for row_index in range(ROW_COUNT):
for row_index in range(MAX_ROW_COUNT):
row = exe_bytes[
table_offset + row_index * ROW_STRIDE : table_offset + (row_index + 1) * ROW_STRIDE
]
if len(row) < ROW_STRIDE:
break
descriptor_id = struct.unpack_from("<I", row, 0x04)[0]
if descriptor_id != row_index:
break
label_id = struct.unpack_from("<H", row, 0x6A)[0]
rows.append(
{
"row_index": row_index,
"descriptor_id": struct.unpack_from("<I", row, 0x04)[0],
"descriptor_id": descriptor_id,
"selector_order": struct.unpack_from("<f", row, 0x00)[0],
"target_mask_bits": row[0x65],
"label_id": label_id,
@ -62,12 +65,12 @@ def main() -> None:
artifact = {
"table_base_va": f"0x{TABLE_BASE_VA:08x}",
"row_stride_hex": f"0x{ROW_STRIDE:02x}",
"descriptor_count": ROW_COUNT,
"binary_path_hint": str(args.exe),
"language_path_hint": str(args.lng),
"binary_sha256": hashlib.sha256(exe_bytes).hexdigest(),
"descriptors": extract_rows(exe_bytes, labels),
}
artifact["descriptors"] = extract_rows(exe_bytes, labels)
artifact["descriptor_count"] = len(artifact["descriptors"])
args.out.write_text(json.dumps(artifact, indent=2) + "\n", encoding="utf-8")