AnyPS5/docs/dev/debt/libSceSaveData.native.md

libSceSaveData.native technical debt

Unknown function info

• sceSaveDataUnknown_RvID8BVeg (libSceSaveData.native, NID RvID8BVeg+g) - declared without parameters as a throwing stub; Minecraft (PPSA17221) imports it beside sceSaveDataTransferringMountPs4 and sceSaveDataDirNameSearchPs4 and fails to load without it. No name in aerolib or among the PS4-migration variants tried with tools/nid_names.py hashes to it.
• sceSaveDataTransferringMountPs4, sceSaveDataDirNameSearchPs4 (libSceSaveData.native) - arguments assumed to be those of sceSaveDataTransferringMount and sceSaveDataDirNameSearch: KytyPS5 binds both NIDs to the PS5 functions, and prosper captured the same result layout on a title for the search. There is no PS4 save area, so the mount returns NOT_FOUND and the search reports zero hits
• sceSaveDataConvert (libSceSaveData.native) - the parameter block (user id at +0x00, SceSaveDataDirName pointer at +0x08, 48 opaque bytes after it) is read from PPSA28416's single call, not confirmed by KytyPS5, shadPS4, fpPS4 or SharpProspero, which have no body for it. Host saves have no size limit, so an existing save returns SCE_OK without touching its files and no event is queued; what the console returns for a save that is mounted, already converted or needs no conversion is unknown. The directory name is validated as sceSaveDataDelete does
• sceSaveDataCancel (libSceSaveData.native) - imported by PPSA23126, which fails to load without it; added without an implementation because its signature is unknown. Every save data call here finishes before it returns, so nothing is ever in flight to cancel, but what the console returns then is unknown
• sceSaveDataDirNameSearch (libSceSaveData.native) - the sort keys (0 directory name, 1 user parameter, 2 blocks, 3 modification time, 5 free blocks) and orders (0 ascending, 1 descending) follow shadPS4, not a hardware run; saves with equal keys keep directory-name order before a descending reverse. Every native save reports SAVE_DATA_BLOCKS_MAX blocks, as sceSaveDataGetMountInfo does, so the two block keys keep directory-name order. The search infos (blocks, free blocks and 32 reserved bytes per returned name, following shadPS4's OrbisSaveDataSearchInfo) report SAVE_DATA_BLOCKS_MAX for both. Keys other than 0, 1, 2, 3 and 5 (including 4) and orders above 1 return SCE_SAVE_DATA_ERROR_PARAMETER; shadPS4 and KytyPS5 only reject keys above 5, so key 4 is rejected here because no source names it. In the directory name pattern % matches any run of characters, none included, and _ exactly one, as the comments of shadPS4's matcher describe; also not confirmed on hardware
• sceSaveDataInitialize3 (libSceSaveData.native) - a repeated initialize succeeds: PPSA12544's executable and its Unity SaveData plugin both initialize, and the plugin fails on any error. Initializations are counted and sceSaveDataTerminate ends the session at the last one; how the console pairs them is unknown