ioctl and _ioctl answered EBADF for every descriptor outside the
libSceNet socket table. Decoded call sites: PS5MC (PPSA99420, FIONBIO x3,
FIONREAD x2, TIOCGWINSZ x3), ProsperoTV (PPSA99003, FIONBIO on a pipe
once poll on pipes is in), XPSemu (PPSA97358, 21 sites).
Following FreeBSD 11.4 kern_ioctl (sys/kern/sys_generic.c:758),
vn_ioctl (sys/kern/vfs_vnops.c:1488), pipe_ioctl (sys/kern/sys_pipe.c:1346)
and randomdev_ioctl (sys/dev/random/randomdev.c:301), release/11.4.0
8c639945: FIONBIO sets or clears O_NONBLOCK through the same status
flags as fcntl F_SETFL (EFAULT for a null argument before EBADF);
FIONREAD reports the size past the offset of a file, the queued bytes of
a pipe's read end, 0 on its write end, ENOTTY on the random device, and
throws on a directory or another character device; termios requests
(group 't', TIOCGWINSZ included) fail with ENOTTY, as tcgetattr already
takes these descriptors as not a terminal; any other request throws
naming the request and descriptor kind. Sockets keep their path
unchanged.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
fcntl and sceKernelFcntl answered EBADF (sceKernelFcntl threw) for
every descriptor outside the libSceNet socket table, so files, pipes,
directories and descriptors 0 to 2 could not be queried or changed.
Observed: Yamagi Quake II (PPSA99007) stops with
"Sys_Error: change stdin to blocking Bad file descriptor", from
fcntl(fileno(stdin), F_SETFL, fcntl(0, F_GETFL, 0) & ~FNDELAY)
(yquake2 src/backends/unix/system.c:81-86).
Predicted from the titles' sources and decoded call sites: XPSemu
(PPSA97358, 97 fcntl sites: F_GETFD 12, F_SETFD 20, F_GETFL 8,
F_SETFL 9, F_DUPFD 1, F_DUPFD_CLOEXEC 7, F_GETLK 9) fails in
qemu_init_main_loop, where its pipe2 (pipe plus F_SETFD FD_CLOEXEC) and
glib's g_unix_set_fd_nonblocking (F_GETFL, F_SETFL) build the event
notifier (util/event_notifier-posix.c:44-67); VLC (PPSA85300, 43 sites,
F_RDAHEAD on every file it opens), RetroArch (PPSA99169, 17),
Porpoise (PPSA99764, 13) and Ruffle (9) call it on files and pipes.
The commands follow FreeBSD 11.4 kern_fcntl and kern_dup
(sys/kern/kern_descrip.c:479-799, 812, release/11.4.0 8c639945):
F_GETFD/F_SETFD keep the close-on-exec flag per descriptor, F_GETFL
reports the host access mode with the status flags, F_SETFL changes
only O_NONBLOCK, O_APPEND, O_ASYNC, O_FSYNC, O_DIRECT and FRDAHEAD,
F_DUPFD/F_DUPFD_CLOEXEC give the lowest free descriptor at or above the
start through dup (EINVAL for a negative start), F_DUP2FD goes through
dup2, F_RDAHEAD/F_READAHEAD set FRDAHEAD on files (EBADF on pipes,
ENOTTY elsewhere), and unknown commands fail with EINVAL. Status flags
live in a guest table shared by dup, dup2 and F_DUPFD like an open file
description. O_NONBLOCK switches a pipe (PIPE_NOWAIT on Windows, where an
empty read and a full write now report EAGAIN; the host flag on Linux).
Record locks use the host POSIX locks on Linux and throw on Windows.
Changes the host cannot model throw naming the flag and descriptor kind.
Sockets keep their path unchanged.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Draws 32_ABGR exports into a tiled and a linear format 17 target and compares every texel with
the layout X in bits 0-4, Y in 5-9, Z in 10-14, W in bit 15, including the X/Z-swapped pairs, rounding
edges and texels outside the scissor. Reverting the X/Z exchange fails it.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Direct memory can already be mapped more than once, so there is no
aliasing to enable and the call returns 0. ProsperoEden (PPSA99008)
imports it and calls it before mapping the same direct memory again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
SaveDataDirNameSearchResult.infos points at an array the title reads one
entry per returned directory name, but the search never wrote it, and
SaveDataSearchInfo was declared as 128 opaque bytes. A title that asks for
the infos read whatever its buffer held.
SaveDataSearchInfo is now the 48-byte record shadPS4 declares as
OrbisSaveDataSearchInfo (blocks, free blocks, 32 reserved bytes), and the
search fills one per returned name. Every native save reports
SAVE_DATA_BLOCKS_MAX blocks, as sceSaveDataGetMountInfo and the block sort
keys already assume, so both counts are SAVE_DATA_BLOCKS_MAX and the
reserved bytes are zero.
guest_savedata_search_tests checks the two records, their zero reserved
bytes and that the search writes nothing past them.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VFVE5WbaUJ2vyj8NAW44CS
std::random_device in libstdc++ reads RDSEED on x86 Linux. On an AMD
EPYC 9V45 (Zen 5) CI runner its 32-bit results repeat about 130 times
in 65536 draws, so guest_posix_random fails. libc now exports
HostEntropy_nid_no_patch, which uses getentropy (rand_s on Windows) and
throws when the OS cannot provide entropy. arc4random, arc4random_buf,
sceRandomGetRandomNumber, /dev/random and /dev/urandom reads,
std::_Random_device and sceKernelUuidCreate use it, and the arc4random
and random device TechnicalDebt entries say so.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) scePthreadJoin on the calling thread returns
EDEADLK and scePthreadCreate with a zeroed attribute creates a thread
with the default attributes. Here both threw.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) the SCE mutex attribute calls return EINVAL
for a null or uninitialized attribute, scePthreadMutexattrSetprotocol
accepts 0 to 2, scePthreadMutexInit takes an uninitialized attribute as
the default one, and destroying a destroyed mutex returns EINVAL. Here
these threw, including for the priority protection protocol.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) the scePthreadAttr setters and getters return
EINVAL for a null or uninitialized attribute and for a null output,
ENOTSUP for a policy other than SCHED_FIFO and SCHED_RR, an inheritance
other than explicit and inherit, and a priority outside 256 to 767, and
EINVAL for an invalid detach state. Here they threw, or stored any
policy, inheritance and priority.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceAgcDcbSetWorkloadsActive writes an 18-dword IT_NOP packet (stream id, 64-bit workload mask) and sceAgcDcbSetWorkloadComplete a 12-dword one (stream id, workload id, 64-bit clear mask), following KytyPS5. Both return null for a null buffer, an unregistered or out-of-range stream, a workload id above 63, and for active a duplicate id or a count of 0 or above 63. sceAgcDriverRegisterWorkloadStream and sceAgcDriverUnregisterWorkloadStream now record the stream ids the DCB calls check.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
sceAgcDcbSetWorkloadsActive and sceAgcDcbSetWorkloadComplete threw. They now write a plain two-dword NOP and keep no workload state.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) a user with every accessibility setting at
its default reads chat transcription 0, press-and-hold delay 0, trigger
effect 1, vibration 1, zoom 0 and zoom follow focus 1; all six read 0
here. A user who is not logged in returns 0x80960009 with or without an
output, as sceUserServiceGetAgeLevel does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A title creating a socket with sceNetSocket sets its options with the BSD
setsockopt, which looked the descriptor up only among libkernel's own
sockets and returned EBADF. libSceNet now registers an option setter with
libkernel, as it does for close and select, and accepts SO_REUSEADDR,
SO_BROADCAST, SO_SNDBUF and SO_RCVBUF like libkernel's own sockets.
PPSA01289 (Sackboy: A Big Adventure) sets SO_BROADCAST on its UDP P2P
socket this way in UIpNetDriver::InitBase. The failure made every listen
fail, and the engine travelled back to its default map with ?closed,
reloading it about every two seconds behind the loading screen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A libSceNet socket is a kernel descriptor on the console, so titles close it
with close(). libSceNet keeps its sockets in its own table, and libkernel's
close passed their numbers to the CRT, which reported an invalid parameter
and left the socket open. libSceNet now registers a closer with libkernel,
as it registers its poller for select. PPSA01289 (Sackboy: A Big Adventure)
closes its P2P socket this way each time it tears its network session down,
leaking one open socket per attempt.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) a null name returns INVALID_ARGUMENT first,
then a user id the console does not know returns 0x80960105 whatever
the buffer, and a buffer shorter than 17 bytes is zeroed before
BUFFER_TOO_SHORT is returned. Here an unknown user returned
INVALID_ARGUMENT and a short buffer was left untouched.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
With SO_RCVTIMEO set, Winsock fails a receive that waits that long with
WSAETIMEDOUT, which native_error turned into ETIMEDOUT (60). sceNetRecv,
sceNetRecvfrom and sceNetRecvmsg on a datagram socket therefore failed
with 0x8041013C on Windows, where FreeBSD's sbwait returns EWOULDBLOCK
(35) to soreceive, Linux returns EAGAIN, and POSIX (XSH 2.10.16)
requires EAGAIN or EWOULDBLOCK when no data was received.
A datagram socket has no connection that can time out, so WSAETIMEDOUT
there only means that the receive timeout the guest set has expired:
report EAGAIN. Stream sockets keep ETIMEDOUT, since Winsock leaves a
connection in an indeterminate state after a timeout; TechnicalDebt
records that gap and the one for SO_SNDTIMEO.
On a PS5 (firmware 13.60) scePthreadAttrSetsolosched and
pthread_attr_setsolosched_np accept only 0 and 16; every other value
returns ENOTSUP and keeps the stored one. The SCE set and get calls
return EINVAL for a null or uninitialized attribute instead of throwing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
fopen opened its stream with _wfopen, which shares read and write
access but not delete access. While the guest held a stream open,
rename of its file failed with EIO and remove with EBUSY. POSIX rename
and remove work on open files, as on Linux and FreeBSD, and since
#3677 the descriptors sceKernelOpen returns share delete access.
fopen now creates the handle with CreateFileW sharing read, write and
delete, with the access and creation disposition of the mode, and
wraps it with _open_osfhandle and _wfdopen, keeping append mode. A
failed CreateFileW sets errno through the error mapping #3677 added to
libkernel's NativeOpen, which moves to libc as
WindowsOpenError_nid_no_patch so that both use it. freopen still
reopens through _wfreopen; TechnicalDebt records it.
With the f32 denormal field of FLOAT_MODE set to keep, v_cmp_X_f32 and
v_cmpx_X_f32 read a denormal operand as zero: NVIDIA, RADV and lavapipe
all flush denormals in their float compares. Compare the operands as
sign-magnitude integers instead, with NaN handled apart. Compares with
flushed denormals are unchanged. This matches RDNA2 (gfx1036) on 256
operand pairs per opcode, with f32 denormals kept and flushed.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) destroying a rwlock returns 0 even while it
is held, and leaves 1 in the handle; every later call on that handle
returns EINVAL until it is initialized again. A zero handle is
initialized on first use by the scePthreadRwlock calls too. Here a held
rwlock returned EBUSY, a destroyed handle became null and was silently
re-created by the next POSIX call, and the scePthreadRwlock calls threw
on a zero handle.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On a PS5 (firmware 13.60) sched_get_priority_max returns 767 and
sched_get_priority_min 256 for SCHED_FIFO and SCHED_RR; the two were
swapped. Every other policy, SCHED_OTHER included, returns -1 with
EINVAL instead of a range or a host exception.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A playing sampler voice whose waveform still accepts blocks (CONTINUE)
reported only INUSE|PLAYING after it had played every queued block, so
a title that waits for EMPTY before it reuses the voice never did.
PPSA18391 (engine: Clickteam Fusion) reads state_flags & 0x22 != 2 from
sceNgs2VoiceGetState as the end of a sound; each of its sound effects
played once and never again.
The voice now also reports EMPTY (0x20) in that state and keeps
playing, so blocks added later still play. A waveform that was closed
without CONTINUE does not report it.
Resident Evil 4 (PPSA07411, #2776) and PRAGMATA (PPSA02530, #3043) stop
on the absent export with
what(): _ZN3sce4Json14InitParameter225setSpecialFloatFormatTypeENS0_22SpecialFloatFormatTypeE not implemented
Deathloop, Minecraft Legends and Cyberpunk import the base-object
constructor InitParameter2::InitParameter2(), InitParameterRtti2::
setAllocatorRtti and InitParameterRtti::InitParameterRtti(AllocParamRtti*,
void*, unsigned long), which were NotImplemented stubs.
InitParameter2 is the 40-byte object of SharpEmu and KytyPS5: the
allocator, its user data, the file buffer size and the 32-bit special
float format type at 0x18. Both constructors zero it, setAllocatorRtti
writes the allocation parameters and user data where setAllocator writes
the allocator, and setSpecialFloatFormatType stores the type.
InitParameterRtti's constructor writes its three arguments to the first
24 bytes. The NID WVZBP4IyM+E recomputes from the mangled name and is in
the aerolib database. The enum's values are unknown, so no value is
rejected; the inferred layouts are recorded in TechnicalDebt.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit 258f2910808e5ef1636973aaefbdf51615873dcb)
Dean
screamm
Dean Galvin
pushkarreddyy
fma-rc
JAB-dev
winstrex
Leonardo
Utku Halis
Tyler Westerberg
eljackjoestar-cmd
Ondra97
authurtabo-byte
ducloc080202
overlordxrz-source
MarcZX100
pallp
Scramblrrrr
hugodearaujo
lorkydey
xXPBSXx
Claude
jdmagic
virp-mta
Yunus Shaikh
Alex
Adrià
Simon
Adrià Franch
David