The call threw for lack of a signature. In the PS5 12.00 libkernel it takes
one int, passes it to syscall 601 (command 29) and returns the raw kernel
result. No dump is produced here, so it returns 0, as
sceCoredumpConfigDumpMode does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RbLgECLQ2bpDM7oe2urGZK
sceCoredumpAttachUserFile (5nc2gdLNsok) and
sceCoredumpAttachMemoryRegionAsUserFile (MEJ7tc7ThwM) get the
signatures of Orbital's db_types.json (cc408367) and SharpProspero's
KernelSystem.cs (5dfdb4b0): (uint32_t userValue, const char* path) and
(uint32_t userValue, const void* mem, size_t size, const char* name).
The handler is never invoked here, so both return
SCE_COREDUMP_ERROR_NOT_IN_COREDUMP_HANDLER (0x81180003, shadPS4
coredump_error.h e0a46675) and attach nothing; a null path or name and
a null, empty or wrapping region throw because the order of the
console's checks is unknown.
Carried from @screamm with author attribution preserved.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
sceCoredumpWriteUserData (Dbbkj6YHWdo) and sceCoredumpDebugTextOut
(dei8oUx6DbU) get the signatures of Orbital's db_types.json (cc408367)
and SharpProspero's KernelSystem.cs (5dfdb4b0): ssize_t (const void*,
size_t) and void (const char*, int). WriteUserData moves out of
Unimplemented.cpp.
User data belongs to the core dump handler: the Vita's
sceCoredumpWriteUserData returns 0x800A0003 ("No user-data capture is
active") outside it (vita-headers e66ebe90), and the RED engine's PS4
crash handler makes every coredump call from its handler (Vangaurd
4f86d2b0). The handler is never invoked here, so WriteUserData returns
SCE_COREDUMP_ERROR_NOT_IN_COREDUMP_HANDLER (0x81180003, shadPS4
coredump_error.h e0a46675) sign-extended and keeps nothing; a null,
empty or wrapping buffer throws because the order of the console's
checks is unknown. DebugTextOut prints its text to stderr with the
[coredump] prefix; a negative length or a null text with a nonzero
length throws.
Evidence: Broken Sword Reforged (PPSA21480) reaches the family through
its sibling, #3704 comment 6113687542: "`ERROR agc_graphics.cpp:266
Sony call failed with code 8a6c9018` (the resource registration error,
followed by the error dialog), then `sceCoredumpWriteUserString not
implemented`." WriteUserString has no declaration in any source and
keeps throwing; its TechnicalDebt entry records the call. 007 First
Light (PPSA11386) imports WriteUserData (#2523) without calling it
before its stop.
Test: guest_coredump_user_data.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
hypermist