| 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-exception |
|---|
| 6 | // |
|---|
| 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_H |
|---|
| 15 | #define MSAN_CHAINED_ORIGIN_DEPOT_H |
|---|
| 16 | |
|---|
| 17 | #include "sanitizer_common/sanitizer_common.h" |
|---|
| 18 | |
|---|
| 19 | namespace __msan { |
|---|
| 20 | |
|---|
| 21 | // Gets the statistic of the origin chain storage. |
|---|
| 22 | StackDepotStats 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 the |
|---|
| 27 | // existing ID. |
|---|
| 28 | bool ChainedOriginDepotPut(u32 here_id, u32 prev_id, u32 *new_id); |
|---|
| 29 | |
|---|
| 30 | // Retrieves the stored StackDepot ID for the given origin ID. |
|---|
| 31 | u32 ChainedOriginDepotGet(u32 id, u32 *other); |
|---|
| 32 | |
|---|
| 33 | void ChainedOriginDepotBeforeFork(); |
|---|
| 34 | void ChainedOriginDepotAfterFork(bool fork_child); |
|---|
| 35 | |
|---|
| 36 | } // namespace __msan |
|---|
| 37 | |
|---|
| 38 | #endif // MSAN_CHAINED_ORIGIN_DEPOT_H |
|---|
| 39 | |
|---|
