mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-23 18:56:03 +00:00
81 lines
4.4 KiB
C++
81 lines
4.4 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern {
|
|
|
|
namespace {
|
|
|
|
constexpr uintptr_t Invalid = std::numeric_limits<uintptr_t>::max();
|
|
|
|
constinit KAddressSpaceInfo AddressSpaceInfos[] = {
|
|
{ 32, ams::svc::AddressSmallMap32Start, ams::svc::AddressSmallMap32Size, KAddressSpaceInfo::Type_MapSmall, },
|
|
{ 32, ams::svc::AddressLargeMap32Start, ams::svc::AddressLargeMap32Size, KAddressSpaceInfo::Type_MapLarge, },
|
|
{ 32, Invalid, ams::svc::AddressMemoryRegionHeap32Size, KAddressSpaceInfo::Type_Heap, },
|
|
{ 32, Invalid, ams::svc::AddressMemoryRegionAlias32Size, KAddressSpaceInfo::Type_Alias, },
|
|
{ 36, ams::svc::AddressSmallMap36Start, ams::svc::AddressSmallMap36Size, KAddressSpaceInfo::Type_MapSmall, },
|
|
{ 36, ams::svc::AddressLargeMap36Start, ams::svc::AddressLargeMap36Size, KAddressSpaceInfo::Type_MapLarge, },
|
|
{ 36, Invalid, ams::svc::AddressMemoryRegionHeap36Size, KAddressSpaceInfo::Type_Heap, },
|
|
{ 36, Invalid, ams::svc::AddressMemoryRegionAlias36Size, KAddressSpaceInfo::Type_Alias, },
|
|
{ 39, ams::svc::AddressMap39Start, ams::svc::AddressMap39Size, KAddressSpaceInfo::Type_Map39Bit, },
|
|
{ 39, Invalid, ams::svc::AddressMemoryRegionSmall39Size, KAddressSpaceInfo::Type_MapSmall, },
|
|
{ 39, Invalid, ams::svc::AddressMemoryRegionHeap39Size, KAddressSpaceInfo::Type_Heap, },
|
|
{ 39, Invalid, ams::svc::AddressMemoryRegionAlias39Size, KAddressSpaceInfo::Type_Alias, },
|
|
{ 39, Invalid, ams::svc::AddressMemoryRegionStack39Size, KAddressSpaceInfo::Type_Stack, },
|
|
};
|
|
|
|
constexpr u8 FlagsToAddressSpaceWidthTable[4] = {
|
|
32, 36, 32, 39
|
|
};
|
|
|
|
constexpr size_t GetAddressSpaceWidth(ams::svc::CreateProcessFlag flags) {
|
|
/* Convert the input flags to an array index. */
|
|
const size_t idx = (flags & ams::svc::CreateProcessFlag_AddressSpaceMask) >> ams::svc::CreateProcessFlag_AddressSpaceShift;
|
|
MESOSPHERE_ABORT_UNLESS(idx < sizeof(FlagsToAddressSpaceWidthTable));
|
|
|
|
/* Return the width. */
|
|
return FlagsToAddressSpaceWidthTable[idx];
|
|
}
|
|
|
|
static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace32Bit) == 32);
|
|
static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace64BitDeprecated) == 36);
|
|
static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace32BitWithoutAlias) == 32);
|
|
static_assert(GetAddressSpaceWidth(ams::svc::CreateProcessFlag_AddressSpace64Bit) == 39);
|
|
|
|
KAddressSpaceInfo &GetAddressSpaceInfo(size_t width, KAddressSpaceInfo::Type type) {
|
|
for (auto &info : AddressSpaceInfos) {
|
|
if (info.GetWidth() == width && info.GetType() == type) {
|
|
return info;
|
|
}
|
|
}
|
|
MESOSPHERE_PANIC("Could not find AddressSpaceInfo");
|
|
}
|
|
|
|
}
|
|
|
|
uintptr_t KAddressSpaceInfo::GetAddressSpaceStart(ams::svc::CreateProcessFlag flags, KAddressSpaceInfo::Type type) {
|
|
return GetAddressSpaceInfo(GetAddressSpaceWidth(flags), type).GetAddress();
|
|
}
|
|
|
|
size_t KAddressSpaceInfo::GetAddressSpaceSize(ams::svc::CreateProcessFlag flags, KAddressSpaceInfo::Type type) {
|
|
return GetAddressSpaceInfo(GetAddressSpaceWidth(flags), type).GetSize();
|
|
}
|
|
|
|
void KAddressSpaceInfo::SetAddressSpaceSize(size_t width, Type type, size_t size) {
|
|
GetAddressSpaceInfo(width, type).SetSize(size);
|
|
}
|
|
|
|
}
|