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1//===-- msan_chained_origin_depot.h -----------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file is a part of MemorySanitizer.10//11// A storage for chained origins.12//===----------------------------------------------------------------------===//13 14#ifndef MSAN_CHAINED_ORIGIN_DEPOT_H15#define MSAN_CHAINED_ORIGIN_DEPOT_H16 17#include "sanitizer_common/sanitizer_common.h"18 19namespace __msan {20 21// Gets the statistic of the origin chain storage.22StackDepotStats ChainedOriginDepotGetStats();23 24// Stores a chain with StackDepot ID here_id and previous chain ID prev_id.25// If successful, returns true and the new chain id new_id.26// If the same element already exists, returns false and sets new_id to the27// existing ID.28bool ChainedOriginDepotPut(u32 here_id, u32 prev_id, u32 *new_id);29 30// Retrieves the stored StackDepot ID for the given origin ID.31u32 ChainedOriginDepotGet(u32 id, u32 *other);32 33void ChainedOriginDepotBeforeFork();34void ChainedOriginDepotAfterFork(bool fork_child);35 36} // namespace __msan37 38#endif // MSAN_CHAINED_ORIGIN_DEPOT_H39