1//===-- scudo_flags.inc -----------------------------------------*- 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/// Hardened Allocator runtime flags.
10///
11//===----------------------------------------------------------------------===//
12
13#ifndef SCUDO_FLAG
14# error "Define SCUDO_FLAG prior to including this file!"
15#endif
16
17SCUDO_FLAG(int, QuarantineSizeMb, -1,
18           "Deprecated. Please use QuarantineSizeKb.")
19
20// Default value is set in scudo_flags.cpp based on architecture.
21SCUDO_FLAG(int, QuarantineSizeKb, -1,
22           "Size in KB of quarantine used to delay the actual deallocation of "
23           "chunks. Lower value may reduce memory usage but decrease the "
24           "effectiveness of the mitigation. Defaults to 64KB (32-bit) or "
25           "256KB (64-bit)")
26
27// Default value is set in scudo_flags.cpp based on architecture.
28SCUDO_FLAG(int, ThreadLocalQuarantineSizeKb, -1,
29          "Size in KB of per-thread cache used to offload the global "
30          "quarantine. Lower value may reduce memory usage but might increase "
31          "the contention on the global quarantine. Defaults to 16KB (32-bit) "
32          "or 64KB (64-bit)")
33
34// Default value is set in scudo_flags.cpp based on architecture.
35SCUDO_FLAG(int, QuarantineChunksUpToSize, -1,
36          "Size in bytes up to which chunks will be quarantined (if lower than"
37          "or equal to). Defaults to 256 (32-bit) or 2048 (64-bit)")
38
39// Disable the deallocation type check by default on Android, it causes too many
40// issues with third party libraries.
41SCUDO_FLAG(bool, DeallocationTypeMismatch, !SANITIZER_ANDROID,
42          "Report errors on malloc/delete, new/free, new/delete[], etc.")
43
44SCUDO_FLAG(bool, DeleteSizeMismatch, true,
45           "Report errors on mismatch between size of new and delete.")
46
47SCUDO_FLAG(bool, ZeroContents, false,
48          "Zero chunk contents on allocation and deallocation.")
49