Measured on firmware 13.60: an alignment that is not zero or a power of
two returns EINVAL before anything else; bounds with nothing between
them return ENOMEM, a negative start searches from the bottom, only the
start is rounded up to 16 KiB and the end is used as given; null outputs
are skipped; errors leave both outputs untouched.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Measured on firmware 13.60: attribute 0x100 makes a flag openable by
name, and only such flags can be opened. Each open returns a new handle
on the same flag, which sceKernelCloseEventFlag releases. Closing a
creator handle and deleting through an opened one return EPERM. Two live
shared flags cannot share a name, names of 32 or more bytes return
ENAMETOOLONG, and a missing name returns ESRCH. After the creator
deletes the flag, an opened handle polls and waits with EACCES and sets,
clears and cancels with no effect.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Measured on firmware 13.60: create accepts attribute bits 0x1, 0x2, 0x10,
0x20 and 0x100 and rejects 0x1|0x2; wait and poll ignore mode bits outside
the match and clear fields; EPERM, ECANCELED and EACCES write 0 to the
result pattern.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
On Windows a pair end now reports POLLIN after the peer's shutdown or close.
The console also reports POLLHUP after close; the loopback connection cannot
tell a close from a shutdown.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
FreeBSD 11 kqueue_scan (sys/kern/kern_event.c) re-inserts a reported
knote without EV_CLEAR or EV_DISPATCH at the tail of kq_head, and
knote_enqueue puts a knote that fires again at the tail as well, so the
next scan starts with the events that were not reported yet.
sceKernelWaitEqueue scanned the event list in place, so with num smaller
than the number of ready events the first ones were reported on every
call and the later ones starved. Each reported event that stays
registered now moves to the end of the list, in the order reported.
FreeBSD 11's kern_sigaction (sys/kern/kern_sig.c) calls
sigqueue_delete_proc, which drops the signal from the process queue and
from every thread's queue, whenever the new handler is SIG_IGN, or
SIG_DFL on a signal whose sigprop has SA_IGNORE (SIGURG, SIGCONT,
SIGCHLD, SIGIO, SIGWINCH, SIGINFO). It does so whether or not the
signal is blocked. sigaction and signal now take the signal off the
pending set in those cases, so a later unblock or wait never sees it.
FreeBSD 11.4 getsockaddr sets sa_len to the length argument, and
tcp_usr_bind, tcp_usr_connect, in_pcbbind_setup, in_pcbconnect_setup,
in6_pcbbind and in6_pcbladdr answer EINVAL when it is not the size of
the socket family's address. udp6_bind and udp6_connect pass an
IPv4-mapped address to the IPv4 code without that check when
IPV6_V6ONLY is clear, and udp6_send always checks it. bind and connect
on AF_INET and AF_INET6 sockets, and sendto on AF_INET6 datagram
sockets, now fail a longer address with EINVAL.
WSAPoll reports POLLHUP alone for a stream socket whose peer has closed, so
poll never returned POLLIN for it and a caller waiting for POLLIN did not see
the end of the stream. sopoll_generic reports a socket that can receive no
more as readable and adds POLLHUP only once it can send no more either.
poll now adds the requested read bit and keeps POLLHUP only after the socket
shut its own sending side. A reset or refused connection keeps WSAPoll's flags.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
FreeBSD 11 sendfile checks the file descriptor first, then looks up the
socket with getsock_cap, which answers ENOTSOCK for an open descriptor
that is not a socket and EBADF for one that is not open
(sys/kern/kern_sendfile.c, sys/kern/uipc_syscalls.c).
sendfile replaced the errno that Lookup had already set with EBADF. It
now reports the errno Lookup chose, so an open non-socket gives ENOTSOCK
and a closed descriptor still gives EBADF. The sentence about this gap
is cut from the sendfile debt entry and guest_sendfile covers both cases.
Both threw for a regular file. They now follow FreeBSD 11.4's
filt_vfsread and filt_vfswrite: a read event reports the file size less
the descriptor's offset and fires while that is not 0; a write event
always fires with data 0. A wait holding such an event polls it again
every millisecond, as no host call reports every file change. A size
above 1 and other vnode types still throw.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
FreeBSD 11.4's sys_flock only requires a vnode descriptor, so flock on a directory descriptor succeeds. On Windows the call reached LockFileEx, which rejects a directory handle with ERROR_INVALID_PARAMETER, and flock_nid_postfix turned that into a runtime_error that aborted the process. A directory descriptor now returns 0 without taking a lock; the new guest_file_lock_directory case covers it and the debt entry records that no lock is held.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
The call threw for lack of a signature. In the PS5 12.00 libkernel it takes
one int, passes it to syscall 601 (command 29) and returns the raw kernel
result. No dump is produced here, so it returns 0, as
sceCoredumpConfigDumpMode does.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01RbLgECLQ2bpDM7oe2urGZK
Follow FreeBSD 11.4 sys_getresuid and sys_getresgid (sys/kern/kern_prot.c):
retrieve real, effective, and saved user and group IDs for the guest process,
which is assumed to run as root with IDs 0. Pointers that are not null receive 0,
null pointers are ignored, and 0 is returned leaving errno unchanged on success.
Cover both in guest_credentials test and update libkernel debt documentation.
Debt entries name the titles they were measured on. Use the title ID, or "a retail title" where the sentence needs no identification. No technical content changes.
siginterrupt is a libSceLibcInternal export (the public SDK's stub table has it there, not in the
kernel tables) and FreeBSD 11.4's lib/libc/gen/siginterrupt.c reads the signal's disposition,
sets or clears the signal's bit in _sigintr and SA_RESTART, and installs the disposition again.
libc cannot call libkernel, so, as the pthread hooks do, libc keeps a registered sigaction and
the address of the _sigintr set, and libkernel registers both from a static initializer when it
loads. A call before that throws; the set is written without libkernel's registration lock, as
FreeBSD's libc does. Builds on #8866, which adds the set.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
The public SDK's libkernel, libkernel_sys and libkernel_web stub tables declare _sigintr, the
sigset_t that FreeBSD's libc shares between signal and siginterrupt, and no built library
provided it (#8846). libkernel now exports the 16-byte object, zero at start, and signal records
a handler with SA_RESTART unless its signal is in the set, as lib/libc/gen/signal.c does.
siginterrupt, which fills the set, is a libSceLibcInternal export; libc does not link libkernel
and cannot reach the dispositions, so it stays out and a debt entry for signal says so.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
pthread_kill(thread, 0) returned 0 for every handle other than the caller's before it asked whether the thread was still alive. FreeBSD's _pthread_kill looks the thread up with _thr_find_thread before it checks for signal 0, so the call answers ESRCH for a thread that has ended or was never a thread. The liveness check now runs before the signal 0 shortcut; the calling thread still answers 0.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Keep main's WaitOnKey helpers from #8304 and build the measured
sceKernelSyncOnAddressWait results on them: the wait's ready check now
records whether the value differed, and Wake returns the waiters woken.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
