forked from OSchip/llvm-project
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//===-- scudo_platform.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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/// Scudo platform specific definitions.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SCUDO_PLATFORM_H_
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#define SCUDO_PLATFORM_H_
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#include "sanitizer_common/sanitizer_allocator.h"
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#if !SANITIZER_LINUX && !SANITIZER_FUCHSIA
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# error "The Scudo hardened allocator is not supported on this platform."
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#endif
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#define SCUDO_TSD_EXCLUSIVE_SUPPORTED (!SANITIZER_ANDROID && !SANITIZER_FUCHSIA)
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#ifndef SCUDO_TSD_EXCLUSIVE
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// SCUDO_TSD_EXCLUSIVE wasn't defined, use a default TSD model for the platform.
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# if SANITIZER_ANDROID || SANITIZER_FUCHSIA
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// Android and Fuchsia use a pool of TSDs shared between threads.
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# define SCUDO_TSD_EXCLUSIVE 0
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# elif SANITIZER_LINUX && !SANITIZER_ANDROID
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// Non-Android Linux use an exclusive TSD per thread.
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# define SCUDO_TSD_EXCLUSIVE 1
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# else
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# error "No default TSD model defined for this platform."
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# endif // SANITIZER_ANDROID || SANITIZER_FUCHSIA
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#endif // SCUDO_TSD_EXCLUSIVE
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// If the exclusive TSD model is chosen, make sure the platform supports it.
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#if SCUDO_TSD_EXCLUSIVE && !SCUDO_TSD_EXCLUSIVE_SUPPORTED
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# error "The exclusive TSD model is not supported on this platform."
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#endif
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// Maximum number of TSDs that can be created for the Shared model.
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#ifndef SCUDO_SHARED_TSD_POOL_SIZE
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# define SCUDO_SHARED_TSD_POOL_SIZE 32U
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#endif // SCUDO_SHARED_TSD_POOL_SIZE
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namespace __scudo {
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#if SANITIZER_CAN_USE_ALLOCATOR64
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# if defined(__aarch64__) && SANITIZER_ANDROID
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const uptr AllocatorSize = 0x2000000000ULL; // 128G.
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typedef VeryCompactSizeClassMap SizeClassMap;
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# elif defined(__aarch64__)
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const uptr AllocatorSize = 0x10000000000ULL; // 1T.
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typedef CompactSizeClassMap SizeClassMap;
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# else
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const uptr AllocatorSize = 0x40000000000ULL; // 4T.
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typedef CompactSizeClassMap SizeClassMap;
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# endif
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#else
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# if SANITIZER_ANDROID
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static const uptr RegionSizeLog = 19;
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typedef VeryCompactSizeClassMap SizeClassMap;
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# else
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static const uptr RegionSizeLog = 20;
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typedef CompactSizeClassMap SizeClassMap;
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# endif
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#endif // SANITIZER_CAN_USE_ALLOCATOR64
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} // namespace __scudo
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#endif // SCUDO_PLATFORM_H_
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