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64 lines
1.9 KiB
64 lines
1.9 KiB
4 months ago
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//===-- scudo_allocator.h ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// Header for scudo_allocator.cpp.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SCUDO_ALLOCATOR_H_
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#define SCUDO_ALLOCATOR_H_
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#ifndef __x86_64__
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# error "The Scudo hardened allocator currently only supports x86_64."
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#endif
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#include "scudo_flags.h"
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#include "sanitizer_common/sanitizer_allocator.h"
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namespace __scudo {
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enum AllocType : u8 {
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FromMalloc = 0, // Memory block came from malloc, realloc, calloc, etc.
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FromNew = 1, // Memory block came from operator new.
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FromNewArray = 2, // Memory block came from operator new [].
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FromMemalign = 3, // Memory block came from memalign, posix_memalign, etc.
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};
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struct AllocatorOptions {
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u32 QuarantineSizeMb;
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u32 ThreadLocalQuarantineSizeKb;
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bool MayReturnNull;
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bool DeallocationTypeMismatch;
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bool DeleteSizeMismatch;
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bool ZeroContents;
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void setFrom(const Flags *f, const CommonFlags *cf);
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void copyTo(Flags *f, CommonFlags *cf) const;
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};
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void initAllocator(const AllocatorOptions &options);
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void drainQuarantine();
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void *scudoMalloc(uptr Size, AllocType Type);
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void scudoFree(void *Ptr, AllocType Type);
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void scudoSizedFree(void *Ptr, uptr Size, AllocType Type);
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void *scudoRealloc(void *Ptr, uptr Size);
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void *scudoCalloc(uptr NMemB, uptr Size);
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void *scudoMemalign(uptr Alignment, uptr Size);
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void *scudoValloc(uptr Size);
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void *scudoPvalloc(uptr Size);
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int scudoPosixMemalign(void **MemPtr, uptr Alignment, uptr Size);
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void *scudoAlignedAlloc(uptr Alignment, uptr Size);
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uptr scudoMallocUsableSize(void *Ptr);
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} // namespace __scudo
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#endif // SCUDO_ALLOCATOR_H_
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