Nintendo Switch Brew

Thread Local Region: Difference between revisions

Created page with "This is the 0x200-byte thread-local-storage, the base address is loaded via ARM threadid register tpidrro_el0. == Structure == {| class="wikitable" border="1" |- ! Offset !..."
 
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This is the 0x200-byte thread-local-storage, the base address is loaded via ARM threadid register tpidrro_el0.
This is the 0x200-byte thread local region. Its base address is loaded via ARM threadid register tpidrro_el0. TLR for multiple threads are stored in the same page, with the first TLR normally located at page+0x200, because the first TLR spot is reserved for usermode exception handling. In threads created by sdk, tpidr_el0 is assigned to the ThreadPointer object from the thread local region.


== Structure ==
= Structure =
This is "nn::svc::ThreadLocalRegion".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 7: Line 8:
! Offset
! Offset
! Size
! Size
! Name
! Description
! Description
|-
|-
| 0x0
| 0x0
| 0x100
| 0x100
| [[IPC_Marshalling|IPC]] command buffer
| MessageBuffer
| [[IPC_Marshalling|IPC]] command buffer.
|-
|-
| 0x100
| 0x100
| 0xF8
| 0x2
| ?
| [8.0.0+] DisableCounter
| If userland sets this to non-zero, kernel will pin the thread and disallow calls to almost all SVCs.
|-
| 0x102
| 0x2
| [8.0.0+] InterruptFlag
| If a context switch would have occurred when user disable count was non-zero, kernel will set this to 1. This signifies that the user must call [[SVC#SynchronizePreemptionState|SynchronizePreemptionState]] to unpin itself and regain access other SVCs.
|-
| 0x104
| 0x1
| [14.0.0+] CacheMaintenanceFlag
|
|-
| 0x105
| 0x7B
| Reserved
|
|-
| 0x180
| 0x50
| Tls
|
|-
| 0x1D0
| 0x8
| LocalePtr
|
|-
| 0x1D8
| 0x8
| ErrnoVal
|
|-
| 0x1E0
| 0x8
| ThreadData
|
|-
| 0x1E8
| 0x8
| EhGlobals
|
|-
| 0x1F0
| 0x8
| ThreadPointer
|
|-
|-
| 0x1F8
| 0x1F8
| 0x8
| 0x8
| Address of threadctx+0x58.
| ThreadType
| Pointer to [[#ThreadType|thread type]].
|}
 
= Userland context =
== OsResourceManager ==
This is "nn::os::detail::OsResourceManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x14
| [[#RngManager|RngManager]]
|
|-
| 0x14
| 0x4
| Reserved
|
|-
| 0x18
| 0x28
| [[#AslrSpaceManager|AslrSpaceManager]]
|
|-
| 0x40
| 0x28
| [[#StackGuardManager|StackGuardManager]]
|
|-
| 0x68
| 0x1F0
| [[#ThreadManager|ThreadManager]]
|
|-
| 0x258
| 0x110
| [[#TlsManager|TlsManager]]
|
|-
| 0x368
| 0x1
| [[#TickManager|TickManager]]
|
|-
| 0x369
| 0x7
| Reserved
|
|-
| 0x370
| 0x30
| [[#MemoryHeapManager|MemoryHeapManager]]
|
|-
| 0x3A0
| 0x48
| [[#VammManager|VammManager]]
|
|}
 
=== RngManager ===
This is "nn::os::detail::RngManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x4
| CriticalSection
|
|-
| 0x4
| 0x10
| Random
|
|}
 
=== AslrSpaceManager ===
This is "nn::os::detail::AslrSpaceManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x20
| [[#AddressSpaceAllocator|Allocator]]
|
|-
| 0x20
| 0x1
| Impl
|
|-
| 0x21
| 0x7
| Reserved
|
|}
 
=== StackGuardManager ===
This is "nn::os::detail::StackGuardManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x20
| [[#AddressSpaceAllocator|Allocator]]
|
|-
| 0x20
| 0x1
| Impl
|
|-
| 0x21
| 0x7
| Reserved
|
|}
 
=== ThreadManager ===
This is "nn::os::detail::ThreadManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x1
| Impl
|
|-
| 0x1
| 0x7
| Reserved
|
|-
| 0x8
| 0x1C0
| [[#ThreadType|MainThread]]
|
|-
| 0x1C8
| 0x4
| CriticalSection
|
|-
| 0x1CC
| 0x4
| Reserved
|
|-
| 0x1D0
| 0x10
| AllThreadsList
|
|-
| 0x1E0
| 0x8
| TotalThreadStackSize
|
|-
| 0x1E8
| 0x4
| NumCreatedThreads
|
|-
| 0x1EC
| 0x4
| Reserved
|
|}
 
=== TlsManager ===
This is "nn::os::detail::TlsManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x4
| NumUsedTlsSlots
|
|-
| 0x4
| 0x4
| Reserved
|
|-
| 0x8
| 0x100
| TlsDestructorArray
|
|-
| 0x108
| 0x4
| TlsCriticalSection
|
|-
| 0x10C
| 0x4
| Reserved
|
|}
 
=== TickManager ===
This is "nn::os::detail::TickManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x1
| Impl
|
|}
 
=== MemoryHeapManager ===
This is "nn::os::detail::MemoryHeapManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x8
| HeapAddress
|
|-
| 0x8
| 0x8
| HeapSize
|
|-
| 0x10
| 0x8
| UsedHeapSize
|
|-
| 0x18
| 0x10
| FreeMemoryList
|
|-
| 0x28
| 0x4
| CriticalSection
|
|-
| 0x2C
| 0x4
| Impl
|
|}
 
=== VammManager ===
This is "nn::os::detail::VammManager".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x8
| ReservedRegionAddress
|
|-
| 0x8
| 0x8
| ReservedRegionSize
|
|-
| 0x10
| 0x30
| ReaderWriterLock
|
|-
| 0x40
| 0x8
| RegionManager
|
|}
 
=== AddressSpaceAllocator ===
This is "nn::os::detail::AddressSpaceAllocator".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x0
| 0x4
| CriticalSection
|
|-
| 0x4
| 0x4
| Reserved
|
|-
| 0x8
| 0x8
| BeginPage
|
|-
| 0x10
| 0x8
| EndPage
|
|-
| 0x18
| 0x8
| GuardPageCount
|
|}
 
== ThreadType ==
This is "nn::os::ThreadType".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Name
! Description
|-
| 0x00
| 0x10
| AllThreadsListNode
|
|-
| 0x10
| 0x10
| MultiWaitObjectList
|
|-
| 0x20
| 0x20
| Reserved
|
|-
| 0x40
| 0x01
| State
| Thread status.
|-
| 0x41
| 0x01
| StackIsAliased
|
|-
| 0x42
| 0x01
| AutoRegistered
|
|-
| 0x43
| 0x01
| SuspendCount
|
|-
| 0x44
| 0x02
| BasePriority
| Thread priority minus 0x1C.
|-
| 0x46
| 0x02
| Version
|
|-
| 0x48
| 0x08
| OriginalStack
| Thread stack base address.
|-
| 0x50
| 0x08
| Stack
| Thread stack base address mirror.
|-
| 0x58
| 0x08
| StackSize
| Thread stack size.
|-
| 0x60
| 0x08
| Argument
|
|-
| 0x68
| 0x08
| ThreadFunction
|
|-
| 0x70
| 0x08
| CurrentFiber
|
|-
| 0x78
| 0x08
| InitialFiber
|
|-
| 0x80
| 0x100
| TlsValueArray
| TLS slots.
|-
| 0x180
| 0x20
| ThreadNameBuffer
| Thread name.
|-
| 0x1A0
| 0x08
| NamePointer
| Thread name address.
|-
| 0x1A8
| 0x04
| CsThread
| Critical Section Storage.
|-
| 0x1AC
| 0x04
| CvThread
| Conditional Variable Storage.
|-
| 0x1B0
| 0x04
| Handle
| Thread handle.
|-
| 0x1B4
| 0x04
| LockHistory
|
|-
| 0x1B8
| 0x08
| ThreadId
|
|}
|}
Retrieved from "https://switchbrew.org/wiki/Thread_Local_Region"