| 1 | //===-- flags.inc -----------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef SCUDO_FLAG |
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| 10 | #error "Define SCUDO_FLAG prior to including this file!" |
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| 11 | #endif |
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| 12 | |
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| 13 | SCUDO_FLAG(int, quarantine_size_kb, 0, |
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| 14 | "Size (in kilobytes) of quarantine used to delay the actual " |
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| 15 | "deallocation of chunks. Lower value may reduce memory usage but " |
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| 16 | "decrease the effectiveness of the mitigation." ) |
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| 17 | |
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| 18 | SCUDO_FLAG(int, thread_local_quarantine_size_kb, 0, |
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| 19 | "Size (in kilobytes) of per-thread cache used to offload the global " |
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| 20 | "quarantine. Lower value may reduce memory usage but might increase " |
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| 21 | "the contention on the global quarantine." ) |
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| 22 | |
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| 23 | SCUDO_FLAG(int, quarantine_max_chunk_size, 0, |
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| 24 | "Size (in bytes) up to which chunks will be quarantined (if lower " |
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| 25 | "than or equal to)." ) |
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| 26 | |
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| 27 | SCUDO_FLAG(bool, dealloc_type_mismatch, false, |
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| 28 | "Terminate on a type mismatch in allocation-deallocation functions, " |
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| 29 | "eg: malloc/delete, new/free, new/delete[], etc." ) |
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| 30 | |
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| 31 | SCUDO_FLAG(bool, delete_size_mismatch, true, |
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| 32 | "Terminate on a size mismatch between a sized-delete and the actual " |
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| 33 | "size of a chunk (as provided to new/new[])." ) |
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| 34 | |
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| 35 | SCUDO_FLAG(bool, zero_contents, false, "Zero chunk contents on allocation." ) |
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| 36 | |
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| 37 | SCUDO_FLAG(bool, pattern_fill_contents, false, |
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| 38 | "Pattern fill chunk contents on allocation." ) |
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| 39 | |
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| 40 | SCUDO_FLAG(bool, may_return_null, true, |
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| 41 | "Indicate whether the allocator should terminate instead of " |
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| 42 | "returning NULL in otherwise non-fatal error scenarios, eg: OOM, " |
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| 43 | "invalid allocation alignments, etc." ) |
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| 44 | |
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| 45 | SCUDO_FLAG(int, release_to_os_interval_ms, SCUDO_ANDROID ? INT32_MIN : 5000, |
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| 46 | "Interval (in milliseconds) at which to attempt release of unused " |
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| 47 | "memory to the OS. Negative values disable the feature." ) |
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| 48 | |
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| 49 | SCUDO_FLAG(int, allocation_ring_buffer_size, 32768, |
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| 50 | "Entries to keep in the allocation ring buffer for scudo. " |
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| 51 | "Values less or equal to zero disable the buffer." ) |
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| 52 | |
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