Titles that call Open/Speak after a failed initialize should get the same unavailable-engine error instead of a throw.
Co-authored-by: Cursor <[email protected]>
Deathloop (PPSA01670), Minecraft Legends (PPSA05510) and GTA III
Definitive Edition import both from libSceAmpr. They take a pointer to
the handle slot and act on the conditions created by the libc _Cnd_init:
_Cnd_signal wakes one waiter through a libc helper, _Cnd_init_with_name
is _Cnd_init with the name ignored. _Thrd_id still throws.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
A user event added with sceKernelAddUserEvent stays triggered until it is
deleted. The collection loop kept re-emitting it until the caller's event
buffer was full, so a wait with num > 1 returned the same event num times.
Like kevent, each event is now reported at most once per call; distinct
queued completions of one event are still delivered in order.
(cherry picked from commit db28ebbb7f)
The half-wave scan rules for 32-lane hosts made lane 31 of a matched
scan a subgroup reduction and threw on a device without subgroup
arithmetic, where the read used to build as a shuffle of the scan. Such
a device now keeps the shuffle for lane 31; lane 63 still reads the
identity, which needs no arithmetic.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A wave64 vertex program with the culling scan of #2783 (lane < s3's
primitive count, row_shr bound_ctrl:1 OR scan, v_permlanex16_b32,
v_readlane_b32 of lanes 31 and 63) compares the wave OR with the ballot
of its keys and collapses its triangle when they differ. On a 32-lane
device every pixel of the grid must be covered.
Before the s3 change the program does not build on 32 lanes; with a
shuffle from lane 31 instead of the subgroup reduction no pixel is
covered, as the device leaves lanes of each vertex warp idle. Other
subgroup widths skip.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A wave64 vertex program runs at one guest lane per invocation, so on a
32-lane host subgroup its lanes 32-63 have no invocation. The vertex
entry still set s3 = 64 | 64 << 8, telling the program that its wave
holds 64 vertices and 64 primitives. An NGG culling program then keys a
full-wave OR on lane < s3's primitive count, lanes 32-63 hold real cull
results, and its v_readlane_b32 of lane 63 cannot be built (#2783).
The entry now sets s3 = 32 | 32 << 8 for a wave64 program on a 32-lane
host, the wave the host runs; the console launches waves with fewer
vertices and primitives. The host subgroup width reaches the vertex
input the way it reaches the compute and mesh inputs
(BuildShaderStageInputInfo from HostSubgroupSize), and the source,
prepared-shader and disk cache keys already carry it for every stage.
Programs that do not read s3 are unchanged; wave32 programs and other
host widths keep the full wave.
The keys are then 0 in lanes 32-63, so the read is sound. On a 32-lane
host, when the existing half-wave scan rules fail, the scan may also:
- run under s_mov_b64 exec, -1 (EXEC constant true);
- use bound_ctrl:1 row_shr steps when 0, the fill, is the identity (OR,
add, unsigned max), also into another register, whose old value never
shows since such a step writes every lane;
- take keys shown to be 0 in lanes 32-63: built from 0 through selects
under a lane id or v_mbcnt of -1 below at most 32, v_cmp_ne_u32 against
0, ORs, DPP and permlanes, in stages whose entry EXEC is every lane.
Lane 63 is then the identity and lane 31 the subgroup reduction of the
host's invocations. A shuffle from lane 31 is not enough: an RTX 5070
runs the vertex warps of a non-indexed triangle list with 30 of their 32
invocations. A v_readlane_b32 outside the host subgroup of another value
that is 0 in lanes 32-63 reads 0. Only reads that used to throw change,
besides lane 31 of such scans.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
XPSemu (PPSA97358) stops next at sigsetjmp (aRo9AhFUXcM) from libkernel,
per the body of #3323 "feat(libkernel): implement cpuset_setaffinity for
the calling thread or process": "XPSemu: with this PR, the next stop is
`sigsetjmp` (`aRo9AhFUXcM`)". RetroArch and PS5MC list it under libkernel
in the absent-import tables of #1578; aerolib names aRo9AhFUXcM sigsetjmp.
sigsetjmp is FreeBSD's amd64 sigsetjmp (lib/libc/amd64/gen/sigsetjmp.S,
release/11.4.0 8c639945), the counterpart of the merged siglongjmp (#2935)
and its sigjmp_buf layout (sys/x86/include/setjmp.h, _JBLEN 12): it stores
savemask at offset 88 and, when it is nonzero, saves the current mask at 72
through _sigprocmask(SIG_BLOCK, NULL, oset); then it records the return
address, rbx, rsp, rbp, r12-r15 and the x87 control word, and returns 0.
guest_signal_sets now jumps through the export instead of its copy of
FreeBSD's sigsetjmp, and checks that savemask 0 leaves the mask slot
untouched, a nonzero savemask records the current mask and its own value,
and the callee-saved registers come back after siglongjmp.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
(cherry picked from commit 8a609a5a1f189dce107a871e7da0fd55c746921f)
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 <[email protected]>
(cherry picked from commit 95da68017f6817abec785864e682530e9b135a2b)
Register copied the protection it had recorded for pages it already
watched over the protection the kernel had just reported. A guest that
reserves address space, which registers it as PROT_NONE, then maps
direct memory over it read-write and registers it again kept the stale
PROT_NONE. Collect only write-protects pages with PROT_WRITE, so writes
to that memory were reported once and never again. With PPSA12544 on
the macOS port, the title menu text blinked and glyphs went missing.
Register now keeps a recorded protection only where its own write
protection explains what the kernel reports, and takes the kernel's
protection otherwise. A protected page that was mapped again also loses
its protected mark, so erase no longer restores the old protection over
the new mapping. The kernel is read under the lock, so a concurrent
Collect cannot protect a page between the read and the merge.
Test write_watch_mapped: a reservation, a mapping over it and a second
registration keep reporting writes, and a protected page reserved again
stays PROT_NONE.
AI-assisted: yes
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 <[email protected]>
Claude-Session: https://claude.ai/code/session_017Dqgm9nUKygsXzr6poJsHJ
The pixel program packs its color for the export format, and the test now draws with FP16, UNORM16 and SNORM16 exports: an alpha of 0.75 keeps the pixel, 0.25 drops it, and so does -0.5 with SNORM16. Passes on an RTX 3050, a Radeon 660M and lavapipe.
Formats 4, 5, 6 and 9 (FP16, UNORM16, SNORM16 and 32-bit float ABGR) decode with alpha-to-coverage; formats 1, 2 and 3, which carry no floating-point alpha, still throw.
Adrià