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Fix issues on ro implementation (#834)

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* ro: Fixes some bugs

* Fix critical overflow in random computation
This commit is contained in:
Thog 2019-11-26 19:41:17 +01:00 committed by Ac_K
parent 3f3ae99a0f
commit 69329dc569
2 changed files with 8 additions and 3 deletions
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9
Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs
View file

@ -1,5 +1,6 @@
using ARMeilleure.Memory;
using Ryujinx.Common;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
@ -265,13 +266,15 @@ namespace Ryujinx.HLE.HOS.Services.Ro
int retryCount;
int addressSpacePageLimit = (int)((memMgr.GetAddrSpaceSize() - size) >> 12);
ulong addressSpacePageLimit = (memMgr.GetAddrSpaceSize() - size) >> 12;
for (retryCount = 0; retryCount < MaxMapRetries; retryCount++)
{
while (true)
{
targetAddress = memMgr.GetAddrSpaceBaseAddr() + (ulong)(_random.Next(addressSpacePageLimit) << 12);
ulong randomOffset = (ulong)(uint)_random.Next(0, (int)addressSpacePageLimit) << 12;
targetAddress = memMgr.GetAddrSpaceBaseAddr() + randomOffset;
if (memMgr.InsideAddrSpace(targetAddress, size) && !memMgr.InsideHeapRegion(targetAddress, size) && !memMgr.InsideAliasRegion(targetAddress, size))
{
@ -449,6 +452,8 @@ namespace Ryujinx.HLE.HOS.Services.Ro
if (result == ResultCode.Success)
{
info.NroMappedAddress = nroMappedAddress;
_nroInfos.Add(info);
}
}

2
Ryujinx.HLE/HOS/Services/Ro/ResultCode.cs
View file

@ -3,7 +3,7 @@
enum ResultCode
{
ModuleId = 22,
ErrorCodeShift = 22,
ErrorCodeShift = 9,
Success = 0,