tequ a238935038 Fix hook api cost accounting in the guard checker ...

Api costs were looked up as import_type_map[callee_idx], but that map is
keyed by wasm type index while callee_idx is a function index. A hook was
charged whichever api happened to occupy the callee's index, or nothing at
all when no type carried that index, and imports sharing a signature
collapsed to a single cost. Reordering imports was enough to call
util_verify, the most expensive api, for free. Costs now come from
import_cost_map, keyed by import function index, and import_type_map is
reduced to the signature checking it is actually used for.

compute_wce() applied the loop multiplier to instruction_count only, so an
api call inside a guarded loop was charged for one iteration no matter how
many the guard allowed. The multiplier now applies to execution_cost as
well, with the same floor instruction_count uses.

2026-08-05 15:00:16 +09:00

..

xrpl

Fix hook api cost accounting in the guard checker

2026-08-05 15:00:16 +09:00