jeffrey12cali 36c979b369 fix(libkernel): pass module args and argp to runtime-loaded modules on Linux ...

sceKernelLoadStartModule discarded its arguments, and the relinker's Linux guest writer
synthesized an initialisation trampoline that also cleared the argument registers before
jumping to the module entry point, so a converted module always reached its own start-up
code with args = 0 and argp = NULL.

On PPSA28997 two of the title's own modules validate that parameter block as their first
act and dereference it unconditionally: SaveData faults on `mov (%rsi),%eax` with rsi = 0
beside its `cmp $0x10` size checks, and PSN faults the same way at PSN+0x3ee7 with rbx = 0.
The Windows branch delivers the block, so identical code reports its parameter-version
error and continues instead of faulting.

sceKernelLoadStartModule now records the pair before dlopen and clears it afterwards, and
the emitted DT_INIT stub reads it through two accessors exported by libkernel. The
initialiser is called rather than tail-jumped so its return value can be reported through
*res as the PS5 API specifies. The state is thread_local, which makes the handoff per-call:
ld.so runs a module's initialiser on the thread that called dlopen. DT_FINI keeps a plain
call-through, so unloading neither reads stale arguments nor reports a result.

The accessor names use the _nid_no_patch suffix so the NID resolver leaves them alone and a
guest import can name them exactly.

2026-10-10 00:57:51 +02:00

..

src

fix(libkernel): pass module args and argp to runtime-loaded modules on Linux

2026-10-10 00:57:51 +02:00

EhFrame.hpp

refactor(libkernel): share eh_frame_hdr parsing between module info calls

2026-10-08 06:47:14 +00:00