Porpoise 2.7 (PPSA99764) stops at load on main 0f863c10:
FAIL: unresolved ELF import oc98+zOImus from libkernel_sys.prx
oc98+zOImus is pathconf (tools/nid_names.py, aerolib.csv at
zecoxao/sce_symbols 2883963a). It is exported from libkernel_sys next to
link and readlink.
The lookup follows FreeBSD 11's kern_pathconf and namei (release/11.0.0,
671fb7df): links are followed, a path of 1024 bytes or more or a
component over 255 fails with ENAMETOOLONG, a missing path with ENOENT.
The values are the constants of FreeBSD 11's UFS ufs_pathconf, which
vop_stdpathconf shares where both answer. Names whose UFS value depends
on the mount, the kernel options or the page size, or on which UFS and
vop_stdpathconf disagree, throw; other names fail with EINVAL. The
console's filesystem values are unverified and recorded in
TechnicalDebt.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
PPSA30601 (Resonance) stops at the throwing stub. The four int* arguments follow
OpenOrbis' libkernel.h, the Orbital type database and SharpProspero; the values
follow KytyPS5 (2048 entries of 2 MiB per side) without its accounting of used
entries, listed in TechnicalDebt.md. A null pointer returns EFAULT.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
There is no PSN sign-in, so the code getter answers SCE_NP_ERROR_SIGNED_OUT
instead of throwing; its parameters are unknown and not read. Minecraft
(PPSA17221) calls it after its sign-in dialog and treats the result as
offline play. The request, token and wait calls are left to #3604.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
ProsperoTV (PPSA99003) stops after its menu opens because poll threw for
the read end of a pipe it polls next to its sockets. poll now reports pipe
readiness as FreeBSD's pipe_poll does: readable when data is buffered,
POLLHUP once the other end is closed, writable when PIPE_BUF bytes are
free. On Windows the pipe is checked with NtQueryInformationFile while the
sockets are waited on in 1 ms slices; on Linux the host poll waits on both.
A closed descriptor below the socket range reports POLLNVAL.
Before: MarkPending set the bit and notified while the waits checked the set
under pending.lock, so a signal raised between the check and the wait was lost
and sigwait, sigwaitinfo, a null-timeout sigtimedwait and pause hung forever.
Now: the bit is set while holding that lock, so a wait either sees it or is
notified after it has blocked. GuestSigtimedwait raises with no delay 500 times
without the first sleep the other senders use; on the previous code that hung in
2 of 10 runs, and it passes on the new one.
Before: raise, kill and pthread_kill delivered a signal at once or failed
with EINVAL, nothing stayed pending, and pause, sigwait, sigwaitinfo and
sigtimedwait called NotImplemented_nid_no_patch.
Now: a process-wide pending set holds signals 1 to 128. A signal raised
while it is blocked stays pending and is delivered when _sigprocmask
unblocks it, taken by sigwait, sigwaitinfo or sigtimedwait, or delivered by
pause, which runs its handler on the calling thread and returns -1 with
EINTR. pthread_kill to another thread leaves the signal pending for
whichever thread waits for it and answers ESRCH for a handle that is not a
live guest thread. sigtimedwait follows FreeBSD's sigtimedwait(2): EAGAIN
on timeout, EINVAL for a tv_nsec outside 0 to 1000000000 while nothing is
pending, and an indefinite wait with a null timeout.
Pipeline libraries take ownership of shader modules during prebuild. Treat null handles as a no-op so moved-from modules do not decrement the live-object count twice.
FreeBSD's vfs_kqfilter checks neither the vnode type nor fflags, so the
registration is valid; it is only delivered for a move between directories,
which the Windows directory handle cannot tell from a removal plus an addition.
Also moves the TechnicalDebt entries to docs/dev/debt after main split the file.
Co-Authored-By: Claude <noreply@anthropic.com>
Cloudberry Kingdom (PPSA23827, #3177) registers its first kevent change
as a file watch: ident 3, EVFILT_VNODE, flags 0x25
(EV_ADD|EV_ENABLE|EV_CLEAR), fflags 0x37
(NOTE_DELETE|WRITE|EXTEND|LINK|RENAME). Palworld's Discord module
(PPSA23126, #2648) imports sceKernelAddFileEvent and
sceKernelDeleteFileEvent, which no library exported.
EVFILT_VNODE watches the host file or directory behind the descriptor
and turns host changes into FreeBSD 11 vnode hints, added whole when
they share a bit with the requested fflags as filt_vfsvnode does
(sys/kern/vfs_subr.c, release/11.0.1 34bd3475): a growing write is
NOTE_WRITE|NOTE_EXTEND, a shrinking truncate or an attribute change
NOTE_ATTRIB, a link count change NOTE_LINK or NOTE_DELETE, a pending
delete NOTE_DELETE, a new path NOTE_RENAME, and in a directory a new,
removed or renamed entry NOTE_WRITE (with NOTE_LINK for a subdirectory,
as vop_mkdir_post/vop_rmdir_post). Windows uses FindFirstChangeNotification
on the parent directory (and the watched directory) and compares handle
snapshots every 50 ms, since a write through an open handle is not
reported until it is flushed or closed (measured); Linux uses inotify.
Closing the descriptor, deleting the event or the queue stops the
watcher.
sceKernelAddFileEvent(eq, fd, watch, udata) and
sceKernelDeleteFileEvent(eq, fd) take the OpenOrbis 0a1aaf9d
(libkernel.h:35,109) and SharpProspero 5dfdb4b0 (KernelEqueue.cs:164,168)
signatures; NIDs cG3t15OK4Ow and UmXngHKB6is confirmed with
tools/nid_names.py. The watch bits are the fflags and the event is added
with EV_CLEAR, which is not confirmed on a title.
Throws: NOTE_REVOKE, NOTE_OPEN, NOTE_CLOSE, NOTE_CLOSE_WRITE, NOTE_READ
and unknown bits, NOTE_EXTEND on a directory on Windows (a move from
another directory cannot be told from a creation) and descriptors that
are not files, directories, pipes or sockets (pipes, sockets and kqueues
fail with EINVAL as in FreeBSD). Recorded in TechnicalDebt.
guest_kqueue adds a vnode watch that sees a write to a temporary file
with Cloudberry's flags, fflags filtering, a re-registration, the sce
pair on an equeue, EINVAL for sockets, pipes and the kqueue itself, the
close of a watched descriptor and a directory watch.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Cloudberry Kingdom (PPSA23827, #3177) calls kqueue right after start-up
and stopped on the throwing declarations merged with #3337; Palworld's
Discord module (PPSA23126, #2648) imports kevent.
kqueue reserves a host null-device descriptor in the file descriptor
space and registers it as an event queue that reports each ready event
once per call and moves level-triggered ones behind the others, as
kqueue_scan does. close and sceKernelClose close the queue and drop the
descriptor's events from every queue, dup2 drops them for the target,
and dup/dup2 of a kqueue throw, so a reused descriptor number is never
read as a stale kqueue.
kevent follows FreeBSD 11 kern_event.c (release/11.0.1 34bd3475):
kqueue_kevent for the changelist (filter 0 skipped, EV_SYSFLAGS
cleared, EV_ERROR receipts with the errno in data, EV_RECEIPT, the
early return when nevents is exhausted), kqueue_register for EV_ADD,
EV_DELETE, EV_ENABLE, EBADF, ENOENT and EINVAL, kqueue_scan for the
timeout (EINVAL for a bad timespec, zero polls, above INT32_MAX waits
forever) and filt_timerattach, filt_usertouch for the timer and user
filters. Read and write events reuse the guest socket poll of
sceKernelAddReadEvent/WriteEvent.
Throws: other filters, EV_DISABLE, EV_DISPATCH, EV_FORCEONESHOT,
NOTE_LOWAT, EV_CLEAR on a socket, read/write events on non-socket
descriptors or another kqueue, changes to an existing timer (11.0 and
11.4 differ), a NOTE_NSECONDS fraction above one second and a negative
nevents. Recorded in TechnicalDebt.
Test guest_kqueue covers creation and close, timers, a user event
triggered from another thread, read and write events on a socket pair,
EV_ERROR receipts, the timeout and the error cases.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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