mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-22 08:33:12 -05:00
Dean Galvin
eeff77c380
# Conflicts: # docs/dev/debt/libSceAcm.md # docs/dev/debt/libScePlayGo.md # docs/dev/debt/libSceSystemGesture.md # docs/dev/debt/libSceWebBrowserDialog.md
18 lines
3.9 KiB
Markdown
18 lines
3.9 KiB
Markdown
# libSceSysmodule technical debt
|
||
|
||
### Silent stubs
|
||
|
||
- [sceSysmoduleIsLoaded, sceSysmoduleLoadModule, sceSysmoduleUnloadModule](../../../core/libs/prx/libSceSysmodule/Export.cpp) (libSceSysmodule) accept a module id missing from the module table: they log it and return 0 without loading anything, so `sceSysmoduleIsLoaded` reports an unknown module as loaded and unloading it succeeds, because titles that load or unload such an id aborted otherwise. The internal variants (`sceSysmoduleLoadModuleInternal`, `sceSysmoduleUnloadModuleInternal`, `sceSysmoduleLoadModuleInternalWithArg`, `sceSysmoduleUnloadModuleInternalWithArg`, `sceSysmoduleGetModuleHandleInternal`) throw for an unknown id. What the console returns for an id it does not know is not verified.
|
||
|
||
### Unknown function info
|
||
|
||
- [kModuleTable](../../../core/libs/prx/libSceSysmodule/ModuleTable.hpp) (libSceSysmodule) - module id 0x00000132 is named `libSceProprietaryVoiceChatHelperPrx`, the name of the built module, because `sceSysmoduleGetModuleHandleInternal` opens `libs/<table name>.prx`. The name the console's table uses for this id is not verified
|
||
- [kModuleTable](../../../core/libs/prx/libSceSysmodule/ModuleTable.hpp) (libSceSysmodule) - module IDs registered from decrypted PS5 firmware 1.00–3.20 sysmodule lookup tables:
|
||
- User-space IDs (0x00000005, 0x0000010a, 0x0000010e, 0x0000011b, 0x00000125, 0x00000126, 0x00000127, 0x00000128, 0x0000012a, 0x0000012b, 0x00000130) and internal IDs (0x8000007b, 0x8000007e, 0x8000007f, 0x80000080, 0x80000082, 0x80000083, 0x80000084, 0x80000085, 0x80000086, 0x80000087, 0x80000088, 0x80000089, 0x8000008e, 0x80000090, 0x80000091, 0x80000092, 0x80000093, 0x80000095, 0x80000097, 0x80000099, 0x8000009b, 0x8000009c, 0x8000009e, 0x8000009f, 0x800000a0, 0x800000a1, 0x800000a2, 0x800000a3, 0x800000a4, 0x800000a6, 0x800000a7, 0x800000a8, 0x800000a9, 0x800000ad, 0x800000ae, 0x800000af, 0x800000b0, 0x800000b2, 0x800000b3, 0x800000b4, 0x800000b5, 0x800000b6, 0x800000b7, 0x800000b9, 0x800000ba, 0x800000bb, 0x800000bc, 0x800000bd, 0x800000be, 0x800000bf, 0x800000c3); whether all mapped PRX modules exist as separate runtime files or are embedded in system daemons on retail consoles is unverified
|
||
- Dual IDs for `libSceNgs2` (0x0000000b user / 0x80000090 internal) and `libSceHdrScopes` (0x00000109 user / 0x800000bd internal) reflect distinct public and internal sysmodule identifiers defined in PS5 firmware SDKs
|
||
- [sceSysmoduleIsCalledFromSysModule, sceSysmoduleIsCameraPreloaded, sceSysmoduleLoadModuleByNameInternal, sceSysmoduleMapLibcForLibkernel, sceSysmodulePreloadModuleForLibkernel and sceSysmoduleUnloadModuleByNameInternal](../../../core/libs/prx/libSceSysmodule/Export.cpp) (libSceSysmodule) - names and NIDs are present in the [PS5 3.20 export inventory](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceSysmodule.c). `sceSysmoduleLoadModuleByNameInternal` takes `(uint8_t* fname, uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a5)` from [SharpProspero's Sysmodule bindings](https://github.com/SvenGDK/SharpProspero/blob/5dfdb4b0b166e83dc9ae275001afb695f12c7174/src/SharpProspero/Interop/Sysmodule/Sysmodule.cs#L149-L151), not measured on a console. The other exports had no credible prototypes and are declared without parameters solely to resolve known imports; they make no ABI claim.
|
||
|
||
### Functional
|
||
|
||
- [sceSysmoduleGetModuleInfoForUnwind](../../../core/libs/prx/libSceSysmodule/Export.cpp) (libSceSysmodule) - on Windows the region and file name of an address inside a loaded image are cached after the first lookup, because `VirtualQuery` on a large image section is slow. An entry is used only while the loader still reports the same image for the address (same base, time stamp and size). A page protection change inside the image after the first lookup, which would split or merge the region `VirtualQuery` reports, is not noticed. Addresses outside loaded images are queried every time
|