mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-21 01:42:12 +00:00
81 lines
4.4 KiB
C++
81 lines
4.4 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern {
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namespace {
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constexpr uintptr_t Invalid = std::numeric_limits<uintptr_t>::max();
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constinit KAddressSpaceInfo AddressSpaceInfos[] = {
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{ 32, ams::svc::AddressSmallMap32Start, ams::svc::AddressSmallMap32Size, KAddressSpaceInfo::Type_MapSmall, },
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{ 32, ams::svc::AddressLargeMap32Start, ams::svc::AddressLargeMap32Size, KAddressSpaceInfo::Type_MapLarge, },
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{ 32, Invalid, ams::svc::AddressMemoryRegionHeap32Size, KAddressSpaceInfo::Type_Heap, },
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{ 32, Invalid, ams::svc::AddressMemoryRegionAlias32Size, KAddressSpaceInfo::Type_Alias, },
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{ 36, ams::svc::AddressSmallMap36Start, ams::svc::AddressSmallMap36Size, KAddressSpaceInfo::Type_MapSmall, },
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{ 36, ams::svc::AddressLargeMap36Start, ams::svc::AddressLargeMap36Size, KAddressSpaceInfo::Type_MapLarge, },
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{ 36, Invalid, ams::svc::AddressMemoryRegionHeap36Size, KAddressSpaceInfo::Type_Heap, },
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{ 36, Invalid, ams::svc::AddressMemoryRegionAlias36Size, KAddressSpaceInfo::Type_Alias, },
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{ 39, ams::svc::AddressMap39Start, ams::svc::AddressMap39Size, KAddressSpaceInfo::Type_Map39Bit, },
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{ 39, Invalid, ams::svc::AddressMemoryRegionSmall39Size, KAddressSpaceInfo::Type_MapSmall, },
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{ 39, Invalid, ams::svc::AddressMemoryRegionHeap39Size, KAddressSpaceInfo::Type_Heap, },
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{ 39, Invalid, ams::svc::AddressMemoryRegionAlias39Size, KAddressSpaceInfo::Type_Alias, },
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{ 39, Invalid, ams::svc::AddressMemoryRegionStack39Size, KAddressSpaceInfo::Type_Stack, },
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};
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constexpr u8 FlagsToAddressSpaceWidthTable[4] = {
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32, 36, 32, 39
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};
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constexpr size_t GetAddressSpaceWidth(ams::svc::CreateProcessFlag flags) {
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/* Convert the input flags to an array index. */
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const size_t idx = (flags & ams::svc::CreateProcessFlag_AddressSpaceMask) >> ams::svc::CreateProcessFlag_AddressSpaceShift;
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MESOSPHERE_ABORT_UNLESS(idx < sizeof(FlagsToAddressSpaceWidthTable));
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/* Return the width. */
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return FlagsToAddressSpaceWidthTable[idx];
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}
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static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace32Bit) == 32);
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static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace64BitDeprecated) == 36);
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static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace32BitWithoutAlias) == 32);
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static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace64Bit) == 39);
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KAddressSpaceInfo &GetAddressSpaceInfo(size_t width, KAddressSpaceInfo::Type type) {
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for (auto &info : AddressSpaceInfos) {
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if (info.GetWidth() == width && info.GetType() == type) {
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return info;
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}
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}
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MESOSPHERE_PANIC("Could not find AddressSpaceInfo");
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}
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}
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uintptr_t KAddressSpaceInfo::GetAddressSpaceStart(ams::svc::CreateProcessFlag flags, KAddressSpaceInfo::Type type) {
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return GetAddressSpaceInfo(GetAddressSpaceWidth(flags), type).GetAddress();
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}
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size_t KAddressSpaceInfo::GetAddressSpaceSize(ams::svc::CreateProcessFlag flags, KAddressSpaceInfo::Type type) {
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return GetAddressSpaceInfo(GetAddressSpaceWidth(flags), type).GetSize();
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}
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void KAddressSpaceInfo::SetAddressSpaceSize(size_t width, Type type, size_t size) {
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GetAddressSpaceInfo(width, type).SetSize(size);
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}
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}
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