Document the level-triggered user event semantics of sceKernelWaitEqueue in TechnicalDebt.
(cherry picked from commit db79bee1e597effff34c72493ed893d4e750b95d)
The macOS image initializer called a guest module's DT_INIT with no
arguments, so a module started with sceKernelLoadStartModule never saw
its args and argp, and its result was dropped. The Linux writer already
calls DT_INIT through libkernel's pending argument handoff. On the
macOS port, the PSN plugin of PPSA12544 refuses to start without its
argument block ("PSN is an old version that cannot be used by the
current player runtime") and the title then crashes.
A guest module with DT_INIT now gets two slots bound to
__aps5_get_pending_module_args_nid_no_patch and
__aps5_set_module_init_result_nid_no_patch, and its initializer calls
DT_INIT with the args and argp that sceKernelLoadStartModule records,
as on Linux, then hands the result back. The TechnicalDebt sentence
about the missing arguments on macOS is removed.
guest_module_args also relinks its fixture with --macos and checks the
two binds; on x86-64 macOS it loads the module and checks that DT_INIT
receives the arguments and that its result is returned.
AI-assisted: yes
Stremio Plus (PPSA74126) stops at start-up on _ioctl, which its statically
linked tc* functions call. FreeBSD's _ioctl is the same system call as
ioctl, so it forwards to ioctl.
Implement arc4random (UISQ-dQzw28) in libScePosixForWebKit on top of the
existing arc4random_buf, so both draw from the same thread-local host
std::random_device. Like FreeBSD 11.4 lib/libc/gen/arc4random.c
(8c639945) it returns a uniformly distributed 32-bit value and has no
failure result.
Cloud Play (PPSA99600) imports it: the import audit in #3249 on main
ccf9ff90 lists `UISQ-dQzw28` `arc4random` among nine absent imports
("no PR or issue found"). The ps5-payload-dev SDK stubs (f5d40f02,
sce_stubs/libScePosixForWebKit.c) place arc4random, arc4random_buf and
fnmatch in libScePosixForWebKit; arc4random_uniform is in neither that
set nor libSceLibcInternal, so it is not added.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit 95da68017f6817abec785864e682530e9b135a2b)
There is no system trophy UI, so the call returns success without showing a
list, like the other silent NpTrophy2 entry points; recorded in
docs/dev/TechnicalDebt.md. PPSA15552 (Dead Cells) calls it and
aborted on the NotImplemented exception.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017Dqgm9nUKygsXzr6poJsHJ
PPSA08427 (Killing Floor 3) stops on main at start-up because its bundled
pros.sdk.Prospero.prx imports it:
pros.sdk.Prospero.prx.guest.prx: undefined symbol: y7JD1gfwyfA
The signature is unknown, so it is declared without parameters and
throws, like the other entitlement flag queries the title does not reach.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uzy15wqYTt6iWyxYXEzUWo
Dungeons (PPSA16064) calls select on descriptor 0 and stopped with
"select on descriptor 0 (not a libSceNet socket) not implemented".
Descriptor 0 is now never readable and descriptors 1 and 2 are always
writable, as for a console title with no input. The assumption is in
TechnicalDebt next to the termios entry for the same descriptors.
Claude-Session: https://claude.ai/code/session_012SLQbhAiexxW6TtjYToW8a
sceAgcDebugRaiseException (NID T6xuVw0KUJo) now logs the exception id
with APS5_LOG_OUT and returns 0, as libkernel's
sceKernelDebugRaiseException does.
Palworld PPSA23126 (#2598) and 007 First Light PPSA11386 (#2523) import
it; neither is shown calling it.
OpenAGC 3c7e8072 (src/game_compat.c) returns 0 and says the function is
a no-op on retail hardware; the ud2 trap it describes for development
hardware is not reproduced. KytyPS5 6f0cddd4 (src/libs/agc.cpp) takes a
uint32 exception_id, logs it and returns 0. OpenAGC declares no
arguments, but a body that only traps reads none, so the uint32 is kept
and the conflict is recorded in TechnicalDebt. The aerolib name is from
zecoxao/sce_symbols 2883963a; ps5-payload-dev/sdk f5d40f02 has only an
untyped stub.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
image_sample_c_lz on gfx1035 returns 0 for 8-bit sRGB, so the unorm clamp was the wrong result. Bilinear cube comparison without DISABLE_CUBE_WRAP keeps throwing because that filter blends across faces.
Co-authored-by: Cursor <cursoragent@cursor.com>
sceAgcFuseShaderHalves returns a fused hull as a copy of its back half
(type 7) that is not registered: type 3, no user data, and shader
registers copied to scratch memory with the checksum, RSRC1/RSRC2 and
the LS program address rewritten. sceAgcCreatePrimState accepts only that
type-3 header, and graphics ABI resolution refused it as a replaced
shader header.
SameHeader now also takes a type-3 header as the registered type-7
header for the same code when every other field is equal and its shader
registers differ only in the fused ones. Graphics ABI resolution then
applies the bound header's shader registers over the registered state.
PPSA26344 fuses its hull halves during its loading screen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Subnautica Below Zero stops while compiling a menu shader that compares an sRGB color texture or a bilinear cube face. sRGB uses the unorm reference clamp, and a bilinear cube sample stays on the face it hits.
Written with AI assistance.
FreeBSD fchdir(2) changes the working directory to the directory referenced by a descriptor. The guest imports fchdir from libkernel_sys (PPSA99764, issue #1578) and the module did not export it.
The descriptor's directory is resolved from the path recorded when the directory was opened on Windows, and from the /proc/self/fd link target on Linux. The guest working directory is then set through the libc routine shared with chdir. A descriptor that is not open returns EBADF and one that is not a directory returns ENOTDIR.
AI-assisted: yes
(cherry picked from commit 76329cbb08781e13d757c3ff955acf71f8bd506f)
C17 7.21.6.2p16 returns EOF only if input fails before the first conversion completes, and a suppressed conversion completes. FreeBSD counts it in nconversions (vfscanf.c, releng/11.4, lines 799-805). The host scanf returned EOF there, so sscanf("12", "%*d%d", &v) reported EOF instead of 0. Each suppressed conversion now records its end with a %n and a result of EOF becomes 0 when one was recorded.
PSXS5, SwanStationPS5 and Nuvio stop at start-up on setcontext on main,
and EVO Player and ProsperoStore do on Windows. The three are imported
by the statically linked OpenSSL's ASYNC code.
The three use FreeBSD 11's amd64 ucontext_t (mcontext at 0x10, mc_len
800, uc_link at 0x330, 0x370 bytes), which the titles are built
against: EVO Player's ASYNC_is_capable captures into a 0x370-byte stack
buffer, and async_fibre_makecontext sets uc_link at 0x330 and uc_stack
at 0x338. getcontext saves every register at its call in assembly and
stores the context as FreeBSD's sys_getcontext does: rax and rdx as 0,
the carry flag clear, the FXSAVE image and the signal mask, and nothing
from uc_link on. setcontext checks mc_len and mc_flags as set_mcontext
does, installs the signal mask, masks MXCSR with the host's MXCSR_MASK
and returns through iretq, so every general register and the flags are
restored and nothing is written below the target stack pointer.
makecontext follows FreeBSD 11's amd64 libc.
Windows checks guard-page growth and exception unwinding against the
stack bounds in the TEB. setcontext and longjmp now set them to the
stack they switch to, which makecontext registers and pins writable as
libSceFiber does for fiber stacks. OpenSSL enters a context with
setcontext and then switches with _setjmp and _longjmp.
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