Thread Local Region: Difference between revisions

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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 TLS (thread local storage). It's base address is loaded via ARM threadid register tpidrro_el0.
 
== Structure ==


= Structure =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 11: Line 10:
| 0x0
| 0x0
| 0x100
| 0x100
| [[IPC_Marshalling|IPC]] command buffer
| [[IPC_Marshalling|IPC]] command buffer.
|-
|-
| 0x100
| 0x100
| 0xF8
| 0xF8
| ?
| Unknown.
|-
|-
| 0x1F8
| 0x1F8
| 0x8
| 0x8
| Address of threadctx+0x58.
| Pointer to [[Thread_Local_Storage#Thread_context|thread context]].
|}
|}


== Userland context ==
= Userland context =
This is the structure of the 0x228-byte threadctx used by official userland software.
== Boot paramter ==
This is "nn::os::detail::g_OsBootParamter".


{| class="wikitable" border="1"
{| class="wikitable" border="1"
Line 31: Line 31:
! Description
! Description
|-
|-
| 0x0
| 0x00
| 0xA8
| 0x04
| ?
| Main thread handle.
|-
| 0x04
| 0x04
| Always 0.
|-
| 0x08
| 0x30
| Empty.
|}
 
== Resource manager storage ==
This is "nn::os::detail::g_OsResourceManagerStorage".
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x00
| 0x04
| Always 0.
|-
| 0x04
| 0x10
| Process PRNG.
|-
| 0x14
| 0x04
| Padding.
|-
| 0x18
| 0x08
| Always set to 0.
|-
| 0x20
| 0x08
| [[SVC#svcGetInfo|AddressSpaceStart]] right shifted by 0x0C.
|-
| 0x28
| 0x08
| AddressSpaceEnd ([[SVC#svcGetInfo|AddressSpaceStart]] + [[SVC#svcGetInfo|AddressSpaceSize]]) right shifted by 0x0C and aligned to AddressSpaceAlign.
|-
| 0x30
| 0x08
| AddressSpaceAlign right shifted by 0x0C.
|-
| 0x38
| 0x08
| Always 0.
|-
| 0x40
| 0x08
| Always set to 0.
|-
| 0x48
| 0x08
| [[SVC#svcGetInfo|MapRegionBased]] right shifted by 0x0C.
|-
| 0x50
| 0x08
| MapRegionEnd ([[SVC#svcGetInfo|MapRegionBased]] + [[SVC#svcGetInfo|MapRegionSize]]) right shifted by 0x0C and aligned to MapRegionAlign.
|-
| 0x58
| 0x08
| MapRegionAlign right shifted by 0x0C.
|-
| 0x60
| 0x08
| Always 0.
|-
| 0x68
| 0x08
| Always 0.
|-
| 0x70
| 0x1D0
| Main [[Thread_Local_Storage#Thread_context|thread context]].
|-
| 0x240
| 0x08
| Pointer to main [[Thread_Local_Storage#Thread_context|thread context]].
|-
| 0x248
| 0x08
| Unknown.
|-
| 0x250
| 0x08
| Unknown.
|-
| 0x258
| 0x130
| Always empty?
|-
| 0x388
| 0x08
| Pointer to [[Thread_Local_Storage#Resource_manager_storage|resource manager storage]] + 0x388.
|-
| 0x390
| 0x08
| Pointer to [[Thread_Local_Storage#Resource_manager_storage|resource manager storage]] + 0x388.
|-
| 0x398
| 0x08
| Always 0.
|-
| 0x3A0
| 0x08
| Always 0.
|}
 
== Thread context ==
This structure is used for describing each thread's context. In the main thread's case, this structure comes from the [[Thread_Local_Storage#Resource_manager_storage|resource manager storage]].
 
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x00
| 0x08
| Pointer to [[Thread_Local_Storage#Thread_context|thread context]] + 0x1C8.
|-
| 0x08
| 0x08
| Unknown.
|-
| 0x10
| 0x08
| Pointer to [[Thread_Local_Storage#Thread_context|thread context]] + 0x10.
|-
| 0x18
| 0x08
| Pointer to [[Thread_Local_Storage#Thread_context|thread context]] + 0x10.
|-
| 0x20
| 0x20
| Empty.
|-
| 0x40
| 0x04
| Thread status.
|-
| 0x44
| 0x04
| Thread priority minus 0x1C.
|-
| 0x48
| 0x08
| Thread stack base address.
|-
| 0x50
| 0x08
| Thread stack base address mirror.
|-
| 0x58
| 0x08
| Thread stack size.
|-
| 0x60
| 0x08
| Unknown.
|-
| 0x68
| 0x08
| Unknown.
|-
| 0x70
| 0x08
| Always 0?
|-
| 0x78
| 0x08
| Always 0?
|-
| 0x80
| 0x08
| Always 0?
|-
| 0x88
| 0x100
| Initially empty (contains unknown pointers).
|-
| 0x188
| 0x20
| Thread name.
|-
| 0x1A8
| 0x08
| Thread name address.
|-
| 0x1B0
| 0x04
| Always 0.
|-
| 0x1B4
| 0x04
| Always 0.
|-
| 0x1B8
| 0x04
| Thread handle.
|-
|-
| 0xA8
| 0x1BC
| 0x8
| 0x04
| Address of the stack-bottom-mirror which the thread was created with.
| Always 0.
|-
|-
| 0xB0
| 0x1C0
| 0x8
| 0x08
| Size of the stack.
| Thread global mutex.
|-
|-
| 0xB8
| 0x1C8
| 0x178
| 0x08
| ?
| Unknown.
|}
|}

Revision as of 21:50, 25 September 2017

This is the 0x200-byte TLS (thread local storage). It's base address is loaded via ARM threadid register tpidrro_el0.

Structure

Offset Size Description
0x0 0x100 IPC command buffer.
0x100 0xF8 Unknown.
0x1F8 0x8 Pointer to thread context.

Userland context

Boot paramter

This is "nn::os::detail::g_OsBootParamter".

Offset Size Description
0x00 0x04 Main thread handle.
0x04 0x04 Always 0.
0x08 0x30 Empty.

Resource manager storage

This is "nn::os::detail::g_OsResourceManagerStorage".

Offset Size Description
0x00 0x04 Always 0.
0x04 0x10 Process PRNG.
0x14 0x04 Padding.
0x18 0x08 Always set to 0.
0x20 0x08 AddressSpaceStart right shifted by 0x0C.
0x28 0x08 AddressSpaceEnd (AddressSpaceStart + AddressSpaceSize) right shifted by 0x0C and aligned to AddressSpaceAlign.
0x30 0x08 AddressSpaceAlign right shifted by 0x0C.
0x38 0x08 Always 0.
0x40 0x08 Always set to 0.
0x48 0x08 MapRegionBased right shifted by 0x0C.
0x50 0x08 MapRegionEnd (MapRegionBased + MapRegionSize) right shifted by 0x0C and aligned to MapRegionAlign.
0x58 0x08 MapRegionAlign right shifted by 0x0C.
0x60 0x08 Always 0.
0x68 0x08 Always 0.
0x70 0x1D0 Main thread context.
0x240 0x08 Pointer to main thread context.
0x248 0x08 Unknown.
0x250 0x08 Unknown.
0x258 0x130 Always empty?
0x388 0x08 Pointer to resource manager storage + 0x388.
0x390 0x08 Pointer to resource manager storage + 0x388.
0x398 0x08 Always 0.
0x3A0 0x08 Always 0.

Thread context

This structure is used for describing each thread's context. In the main thread's case, this structure comes from the resource manager storage.

Offset Size Description
0x00 0x08 Pointer to thread context + 0x1C8.
0x08 0x08 Unknown.
0x10 0x08 Pointer to thread context + 0x10.
0x18 0x08 Pointer to thread context + 0x10.
0x20 0x20 Empty.
0x40 0x04 Thread status.
0x44 0x04 Thread priority minus 0x1C.
0x48 0x08 Thread stack base address.
0x50 0x08 Thread stack base address mirror.
0x58 0x08 Thread stack size.
0x60 0x08 Unknown.
0x68 0x08 Unknown.
0x70 0x08 Always 0?
0x78 0x08 Always 0?
0x80 0x08 Always 0?
0x88 0x100 Initially empty (contains unknown pointers).
0x188 0x20 Thread name.
0x1A8 0x08 Thread name address.
0x1B0 0x04 Always 0.
0x1B4 0x04 Always 0.
0x1B8 0x04 Thread handle.
0x1BC 0x04 Always 0.
0x1C0 0x08 Thread global mutex.
0x1C8 0x08 Unknown.
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