Dusklight (PPSA99305) aborts on main as soon as its Select disc image
item is chosen: SDL's file dialog probes "zenity --version" through
posix_spawnp, and posix_spawnp throws "process creation not implemented".
FreeBSD 11.4's posix_spawn returns the error of the child's exec, and
an exec of a program that is in no directory of PATH (_PATH_DEFPATH
when PATH is unset) fails with ENOENT. Both calls now return ENOENT
without writing the process ID when the program is not in the guest
file system, and keep throwing when it is. SDL then reports the file
dialog as unsupported and the title stays on its menu.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Prospero Themes (PPSA90210) imports nmount (3YnXspQNyw8) from libkernel
and fails to load without it:
"./app.elf: symbol lookup error: ./app.elf: undefined symbol: 3YnXspQNyw8".
Mounting file systems is not supported, so it throws if called, like
execvp does for executable replacement. The title opens its theme
library without calling it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Sovthwyu4H63RMbRVha2Sy
PSFlyCast (PPSA99247) imports pthread_condattr_setpshared (3BpP850hBT4)
from libkernel and fails to load without it:
"./app.elf: symbol lookup error: ./app.elf: undefined symbol: 3BpP850hBT4".
The attribute stores PTHREAD_PROCESS_PRIVATE (0) or
PTHREAD_PROCESS_SHARED (1); a null or uninitialized attribute and any
other value return EINVAL without changing it, following FreeBSD 11
libthr thr_condattr.c and pthread_mutexattr_setpshared here. Sharing
across processes is not modeled, as for mutexes.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Sovthwyu4H63RMbRVha2Sy
A sparse import binds whole 64 KiB blocks, so a range whose memfd offset
is not a multiple of 64 KiB fell back to one UDMABUF_CREATE and, above
udmabuf's size limit, to copies. The sparse buffer now starts at the
block below the range: HostImport::lead holds that distance, the
import's device address points at the range itself, and every offset
into the import's buffer goes through HostImportOffset.
Goosebumps Terror in Little Creek (PPSA27305) aborts in gameplay with
"unsupported color format 16 number type 0 component swap 2": it renders
into a COLOR_5_6_5 UNORM target. The target now renders into
R5G6B5_UNORM_PACK16. AMD keeps X in bits 0-4 and Z in bits 11-15, and
Mesa's ac_translate_colorswap programs SWAP_STD_REV for a surface with
red in bits 11-15, so with SWAP_STD_REV the exports are written as they
are and with SWAP_STD they are written with X and Z exchanged, as for
1_5_5_5. The alternate swaps and other number types keep throwing.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
With #6014 merged, the first draw of METAL GEAR SOLID: Peace Walker's
(PPSA18216) opening movie stops on "the depth target's sample count
differs from the rasterizer's" (mrfelek on #6196). The state he reported
is a 4x PA_SC_AA_CONFIG, MSAA_ENABLE clear, a one-sample 1440x810 depth
target and no color target; on main alone it throws earlier, on "a depth
target". Like the one-sample color targets of bb877791a, such
a depth target, with or without one-sample color targets, is now drawn
as a one-sample draw at the pixel center, before the multisampled-target
check and instead of the sample-0 path, which needs MSAA_ENABLE.
Points, lines, alpha-to-coverage, a sample-mask export and DB_EQAA Z
interpolation or overrasterization throw on this path, and so do
PS_ITER_SAMPLE and ANCILLARY or SAMPLE_COVERAGE pixel inputs when the
pixel program runs. A skipped pixel program is replaced by the null
program, which uses neither.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Prevent reached null conversion destinations from crashing sscanf_s and vsscanf_s. Return EOF before writes and retain earlier assignments. Add regression coverage through both guest ABI entry points.
AI-assisted: yes (OpenAI Codex). Windows WinLibs GCC 15.2 Release: production baseline crashes with the new regression; fixed shared libc passes guest_scan_count, guest_formatting, guest_wide_formatting and guest_strings (4/4). Conventions pass. Full all-target build was deliberately stopped after 83s with 3691 pending targets, not completed. No title or console run; constraint-handler invocation remains unimplemented as documented. No performance or coverage-percentage claim.
A v_mul_f32 in a FLOAT_MODE that flushes f32 denormals emits the
nearest-even tininess check, the NaN result selection and then a
result flush. The check already turns every product that rounds below
2^-126 into a zero of its sign, so the flush can't change what it
keeps. DenormalFlushEliminator now proves that: a select arm guarded
by the tiny-product check of the same denormal-free factors, an arm a
select takes only when its own bits are NaN, and an and with a mask
that has no significand bits are denormal-free.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A guest path is resolved by appending its components to the host root or
to a mount alias directory through std::filesystem::path. On Windows a
component such as "C:" that came first in the appended part was parsed as
a root name, so operator/ replaced the host directory instead of
appending: "/savedata0/C:/Windows/win.ini" and "/app0/../C:/Windows/win.ini"
resolved to "C:\Windows\win.ini", and "/C:/x" lost the component and
resolved to "<root>\x". A colon is an ordinary character in a FreeBSD
file name, so those names belong under the mount.
Guest paths are now split into component names and joined to the host
directory as text. Explicit native drive paths are still passed through.
On NTFS a name containing ":" still opens an alternate data stream; the
libc debt list now records it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A bind of slice 1 or later of a depth array read the slice's HTILE but took
its clear only when all its words were equal, because the HTILE word layout
of those slices is not modelled. Neither step needs the layout: the clear
is taken when every word of the range has ZMask 0 (a check over the set of
words), and the store-back rewrites each word in place from its own bits.
The value the surface is cleared to is DB_DEPTH_CLEAR, which the DB's depth
test reads for every cleared tile whatever its Min/Max Z (HTILE_Z_CLEAR_REG
in Mesa's src/amd/common/ac_descriptors.h), the same rule slice 0 already
follows.
PPSA05684 resets the four slices of its 2048x2048 D16 sun cascade array
every frame by writing ZMask 0 words with Min/Max Z 0 or 1 into their HTILE.
Slices 1 to 3 kept the previous frame's depth, and the main menu lost its
volumetric sun shafts and sunlit foliage.
agc_driver_depth_fast_clear_submit: slice 1 with words alternating 0x0 and
0xfffffff0 takes the clear, stores them back expanded and leaves slice 0's
HTILE alone. The refusal case keeps a word left expanded and is renamed.
AI-assisted: yes
The entry sat right after "connect to AF_UNSPEC", where the open #6884 adds
its own entry, so whichever merges second would conflict. Move it after the
mlockall entry, which no open pull request changes. The text is unchanged.
Written with AI assistance (Claude).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Broken Sword - Shadow of the Templars: Reforged (PPSA21480) decodes its
audio itself and uses AJM codec 23 only to resample interleaved s16 PCM
from 44.1 to 48 kHz: every block initializes the instance with
0, 2, 44100, sets the ratio 0.91875 and decodes 235 frames into a
256-frame output. The run threw "AJM: decoding codec 23 is not
implemented".
A codec 23 run now consumes its whole input and emits every output
frame whose position lies inside it, with the Catmull-Rom of the
existing resampler. Cases the title does not show throw, among them a
run after a resampled run without a new initialize.
A compute kernel that stores one colour to every texel of a storage image over a depth plane (a shadow atlas clear) copied
the whole plane depth image -> staging buffer -> mirror before the dispatch and mirror -> staging buffer -> depth image
after it, although the kernel reads nothing and writes every texel.
A dispatch of the 15-word 8x8x1 image clear kernel (direct, no partial last group) whose T# lies on a depth surface now
reads its colour from guest memory under the GPU mutex, the place the kernel reads it. When the dispatch covers the whole
plane, the plane is one layer of level 0, the colour is a value the plane's format holds exactly (0 or 1 for a 16-bit
unorm view, 0 or 0xffff for a 16-bit uint view, 0 or a normal float in (0, 1] for a 32-bit view) and nothing is waiting to
write the colour, the dispatch still writes the mirror but the copy-in is left out, and the copy-out becomes a clear of the
depth image to that value. The colour is read again when the copy-out is replaced; a changed value keeps the copy-out.
Every other dispatch, stencil planes and declined values keep both copies.
agc_driver_depth_clear_hle_tests runs the clear sequences with the clear taken and with the copies, and compares the depth
image texel by texel through the mirror, the guest memory and the depth tests.
socket() returned EPROTONOSUPPORT for every socket type it does not create.
FreeBSD 11.4's socreate returns EPROTOTYPE when no protocol is found, the
protocol is 0 and the type is not 0, and EPROTONOSUPPORT when a protocol was
given. Its inet domain (in_proto.c) has SOCK_RAW entries in every kernel and
a SOCK_SEQPACKET entry only with SCTP, and no SOCK_RDM or other type.
Return EPROTOTYPE for a type the inet domain never has, such as SOCK_RDM,
with protocol 0. SOCK_RAW and SOCK_SEQPACKET keep EPROTONOSUPPORT, since
whether the console creates them is not known. Test the unknown types and
mismatched protocols for AF_INET and AF_INET6, and list the socket types and
families that are not created in the library's technical debt file.
Written with AI assistance (Claude).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Rosetta conversion limits were measured on an M1 running macOS 15.3.1
and an M5 Max. A survey on an M5 running macOS 26.4 executes ANDN, RDRAND,
the rest of BMI1 and BMI2, LZCNT, PREFETCHW, CLFLUSHOPT, AVX, AVX2, FMA,
F16C and MOVBE while CPUID reports none of them, and raises an illegal
instruction for RDSEED, CLWB, RDPID, ADCX and ADOX.
select takes descriptors 0 to 2 as a console title's terminal with no input: 0 is never readable and 1 and 2 are always writable. poll threw for them unless the host happened to attach a pipe, so the same title could select on its standard streams but not poll them. poll now gives the same answer, with POLLOUT, the one bit ttydev_poll reports for a writable terminal, for 1 and 2 and nothing for 0.
selscan asks a descriptor once, with the flags of every set it is in (POLLRDNORM for the read set, POLLWRNORM for the write set, POLLRDBAND for the exception set, plus POLLHUP and POLLERR), and marks each set whose flags the answer shares. A seeded random device's randomdev_poll narrows a request with POLLRDNORM to that bit and returns any other request whole, so in the read set it is readable and in no other set, and otherwise it is in each write and exception set it was asked in; select reported it readable and writable together and never exceptional. A regular file or directory went to the host poll, which on Windows threw; vop_stdpoll makes it readable and writable and never exceptional, which select now answers in process on every host, as poll does.
poll threw for /dev/random and /dev/urandom, which select already treats as ready. FreeBSD 11.4's randomdev_poll, once the device is seeded, narrows a request that has POLLIN or POLLRDNORM to those bits and returns any other request whole, POLLOUT and the band bits included. poll now answers that, and the test that relied on the random device throwing uses a kqueue descriptor, which poll still does not support.
poll threw for any descriptor that is neither a socket nor a pipe, so a title polling a file it also reads stopped there. FreeBSD 11.4 hands a vnode to VOP_POLL, and both vop_stdpoll and vop_nopoll return POLLIN, POLLRDNORM and POLLOUT of the requested events for every event poll accepts and never POLLPRI, POLLRDBAND or POLLWRBAND. A file, a directory or a file read from app0.zar now answers that without a host call. File::IsVnode tells such a descriptor apart from the host file type without throwing, so a host socket lent by libSceNet still reaches its own path.
A fill that covers a depth surface's whole stencil plane with four equal
bytes, or its whole depth plane with a value in 0.0-1.0, now reaches the
host image through the pending fast clear the next time the surface is
bound, sampled or stored to. An HTILE fill or HTILE clear kernel noted
afterwards replaces the value with DB_DEPTH_CLEAR/DB_STENCIL_CLEAR.
NoteDepthMetadataFill only reacted to fills of DB_HTILE_DATA_BASE, so the
Cohtml UI of Heretic + Hexen (PPSA26525) and DOOM + DOOM II (PPSA21444),
which resets its stencil plane to 1 with a 0x01010101 fill every frame and
then draws with stencil Equal 1 and 2, kept the stencil of earlier frames
and showed black squares and clipped text. agc_driver_depth_plane_fill
pins the rules.
Cult of the Lamb (PPSA06465, #2686) stops at start-up on the first one:
FAIL: unresolved ELF import pXJh3aVk8Ks from libSceContentDelete.prx
Both exports have been on main without an implementation (#2740); the
call itself has not been observed yet.
Orbital (cc408367, tools/ida/db_types.json:541-542) and SharpProspero
(5dfdb4b0, Interop/Content/ContentDelete.cs:25-42) agree on the
signatures: a 64-bit SceContentSearchContentId and a UTF-8 path. The
content library is empty on the host, since libSceContentExport exports
nothing into it, so no id or path can be found. SharpProspero gives only
NoPermission (0x809D5006) and no public source gives the not-found code,
so both calls throw with the id or path named once the null path and the
initialization are checked, like the "not in the host content library"
throws of #3724. sceContentDeleteById moves from
guest_content_unimplemented to the new guest_content_delete test.
NIDs pXJh3aVk8Ks and qC3QW+AltHs match tools/nid_names.py and the shadPS4
aerolib list.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
(cherry picked from commit 928184824a4acdf36a58287034bff8154c861835)
