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//===-- allocator_config.h --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef SCUDO_ALLOCATOR_CONFIG_H_
#define SCUDO_ALLOCATOR_CONFIG_H_
#include "combined.h"
#include "common.h"
#include "flags.h"
#include "primary32.h"
#include "primary64.h"
#include "secondary.h"
#include "size_class_map.h"
#include "tsd_exclusive.h"
#include "tsd_shared.h"
namespace scudo {
// Default configurations for various platforms.
struct DefaultConfig {
using SizeClassMap = DefaultSizeClassMap;
static const bool MaySupportMemoryTagging = false;
#if SCUDO_CAN_USE_PRIMARY64
typedef SizeClassAllocator64<DefaultConfig> Primary;
static const uptr PrimaryRegionSizeLog = 30U;
#else
typedef SizeClassAllocator32<DefaultConfig> Primary;
static const uptr PrimaryRegionSizeLog = 19U;
#endif
static const s32 PrimaryMinReleaseToOsIntervalMs = INT32_MIN;
static const s32 PrimaryMaxReleaseToOsIntervalMs = INT32_MAX;
typedef MapAllocatorCache<DefaultConfig> SecondaryCache;
static const u32 SecondaryCacheEntriesArraySize = 32U;
static const u32 SecondaryCacheQuarantineSize = 0U;
static const u32 SecondaryCacheDefaultMaxEntriesCount = 32U;
static const uptr SecondaryCacheDefaultMaxEntrySize = 1UL << 19;
static const s32 SecondaryCacheMinReleaseToOsIntervalMs = INT32_MIN;
static const s32 SecondaryCacheMaxReleaseToOsIntervalMs = INT32_MAX;
template <class A> using TSDRegistryT = TSDRegistryExT<A>; // Exclusive
};
struct AndroidConfig {
using SizeClassMap = AndroidSizeClassMap;
static const bool MaySupportMemoryTagging = true;
#if SCUDO_CAN_USE_PRIMARY64
typedef SizeClassAllocator64<AndroidConfig> Primary;
static const uptr PrimaryRegionSizeLog = 28U;
#else
typedef SizeClassAllocator32<AndroidConfig> Primary;
static const uptr PrimaryRegionSizeLog = 18U;
#endif
static const s32 PrimaryMinReleaseToOsIntervalMs = 1000;
static const s32 PrimaryMaxReleaseToOsIntervalMs = 1000;
typedef MapAllocatorCache<AndroidConfig> SecondaryCache;
static const u32 SecondaryCacheEntriesArraySize = 256U;
static const u32 SecondaryCacheQuarantineSize = 32U;
static const u32 SecondaryCacheDefaultMaxEntriesCount = 32U;
static const uptr SecondaryCacheDefaultMaxEntrySize = 2UL << 20;
static const s32 SecondaryCacheMinReleaseToOsIntervalMs = 0;
static const s32 SecondaryCacheMaxReleaseToOsIntervalMs = 1000;
template <class A>
using TSDRegistryT = TSDRegistrySharedT<A, 8U, 2U>; // Shared, max 8 TSDs.
};
struct AndroidSvelteConfig {
using SizeClassMap = SvelteSizeClassMap;
static const bool MaySupportMemoryTagging = false;
#if SCUDO_CAN_USE_PRIMARY64
typedef SizeClassAllocator64<AndroidSvelteConfig> Primary;
static const uptr PrimaryRegionSizeLog = 27U;
#else
typedef SizeClassAllocator32<AndroidSvelteConfig> Primary;
static const uptr PrimaryRegionSizeLog = 16U;
#endif
static const s32 PrimaryMinReleaseToOsIntervalMs = 1000;
static const s32 PrimaryMaxReleaseToOsIntervalMs = 1000;
typedef MapAllocatorCache<AndroidSvelteConfig> SecondaryCache;
static const u32 SecondaryCacheEntriesArraySize = 16U;
static const u32 SecondaryCacheQuarantineSize = 32U;
static const u32 SecondaryCacheDefaultMaxEntriesCount = 4U;
static const uptr SecondaryCacheDefaultMaxEntrySize = 1UL << 18;
static const s32 SecondaryCacheMinReleaseToOsIntervalMs = 0;
static const s32 SecondaryCacheMaxReleaseToOsIntervalMs = 0;
template <class A>
using TSDRegistryT = TSDRegistrySharedT<A, 2U, 1U>; // Shared, max 2 TSDs.
};
#if SCUDO_CAN_USE_PRIMARY64
struct FuchsiaConfig {
using SizeClassMap = DefaultSizeClassMap;
static const bool MaySupportMemoryTagging = false;
typedef SizeClassAllocator64<FuchsiaConfig> Primary;
static const uptr PrimaryRegionSizeLog = 30U;
static const s32 PrimaryMinReleaseToOsIntervalMs = INT32_MIN;
static const s32 PrimaryMaxReleaseToOsIntervalMs = INT32_MAX;
typedef MapAllocatorNoCache SecondaryCache;
template <class A>
using TSDRegistryT = TSDRegistrySharedT<A, 8U, 4U>; // Shared, max 8 TSDs.
};
#endif
#if SCUDO_ANDROID
typedef AndroidConfig Config;
#elif SCUDO_FUCHSIA
typedef FuchsiaConfig Config;
#else
typedef DefaultConfig Config;
#endif
} // namespace scudo
#endif // SCUDO_ALLOCATOR_CONFIG_H_