kern_fpathconf answers _PC_ASYNC_IO with _POSIX_ASYNCHRONOUS_IO (200112) after the descriptor lookup, and a pipe or socket (no vnode) with PIPE_BUF for _PC_PIPE_BUF and EINVAL for every other name. Drop the unused File.hpp include and the duplicate KernelErrors.hpp include.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Read the clock of a libkernel condition attribute, returning
SCE_KERNEL_ERROR_EINVAL for a null or destroyed attribute as
scePthreadCondattrSetclock does, after FreeBSD 11.4 libthr's
_pthread_condattr_getclock. A null clock pointer throws.
All four exports threw. The ownership calls follow fchown: owner and
group 0 and the unchanged value are accepted and any other value
throws. The path is looked up first with stat, lstat or fstatat, as
FreeBSD 11's kern_fchownat does, so a lookup error is returned before
the owner is checked. fchownat rejects flags other than
AT_SYMLINK_NOFOLLOW with EINVAL. linkat passes AT_FDCWD and absolute
paths to link and rejects flags other than AT_SYMLINK_FOLLOW with
EINVAL; a relative path with a directory descriptor and a symbolic
link source without AT_SYMLINK_FOLLOW throw. On Windows a symbolic
link source is detected with the file attributes, since libstdc++
there reports it as a regular file.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
FreeBSD 11.4's sys_fchdir resolves the descriptor with getvnode, which fails with EINVAL for a descriptor that has no vnode; only a vnode that is not a directory gives ENOTDIR from change_dir. fchdir returned ENOTDIR for a pipe or socket. A descriptor that is neither a vnode nor a random device now gets EINVAL; the debt entry records the order of the three errors.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Forward scePthreadBarrier*, scePthreadBarrierattr*, scePthreadGetcpuclockid,
scePthreadGetconcurrency and sceKernelMsync to libkernel's POSIX
implementations and return POSIX errors as SCE kernel errors.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The PS5 payload SDK declares the process parameters with a 32-bit PS4
SDK version at offset 0x10 and a 32-bit PS5 SDK version at 0x14, not
one 64-bit field. The debt entry now states that the export returns the
field at 0x10, as libSceHmd2 and shadPS4 read it, and that which field
the console returns is unmeasured. The test puts different values at
0x10 and 0x14 instead of one 64-bit value with its upper half set.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01WYjMwvLdPR8iX8EP8tQYWa
Write the low 32 bits of the SDK version field at offset 0x10 of the
title's process parameters and return EINVAL (0x80020016) for a null
output, following shadPS4.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01WYjMwvLdPR8iX8EP8tQYWa
lchmod forwards to fchmodat with AT_FDCWD and AT_SYMLINK_NOFOLLOW, as
FreeBSD 11.4's sys_lchmod does. On Linux and Windows, which cannot change
the mode of a symbolic link itself, a symbolic link throws instead of
succeeding without a change.
_openat now opens files as openat does. It reads the mode argument only
when O_CREAT is set, as openat and _open do, and calls openat with the
same descriptor, path, flags and mode, so it returns the same
descriptors and errors.
The PS5 3.20 libkernel_sys export list (DNNDHH/PS5-3.20_Libs) has
_openat, NID bGVEgWXy6dg, as well as openat (A8Yk5AhNDck). In FreeBSD
11.4, _openat is the openat system call stub (lib/libc/sys/Makefile.inc,
amd64/SYS.h) and only libthr's openat adds a cancellation point
(thr_syscalls.c). openat here is not a cancellation point, so
forwarding to it leaves _openat without one, as in FreeBSD.
The openat debt entry now names _openat and no longer says that
O_NOFOLLOW is ignored: open, and so openat, has returned EMLINK for
O_NOFOLLOW on a symbolic link since 9421484572.
The kernel_sys test opens a file through a directory descriptor with
_openat and reads it back, creates one with O_CREAT, O_EXCL and mode
0600, checks outside Windows that it has mode 0600, reopens it for
writing, and checks EEXIST, EINVAL, EBADF and ENOTDIR.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
lstat and readlink threw NotImplemented for every Windows reparse point
other than a symbolic link or a drive junction. A tag without the name
surrogate bit (cloud files, deduplication) does not stand for another path,
so lstat now answers as stat does and readlink returns EINVAL, as FreeBSD
does for a file that is not a link and as CPython's os.lstat and os.readlink
do (bpo-37834). A name surrogate that is neither a symbolic link nor a
junction (a mounted volume, a WSL link) is reported as the reparse point
itself with the mode of its attributes, and readlink returns EINVAL.
The tests set reparse tags with FSCTL_SET_REPARSE_POINT, one without the
name surrogate bit and one with it. A compact /exe (WOF) file cannot serve
as the fixture: on Windows 11 24H2 the WOF filter hides the reparse point
from GetFileAttributesW and FileAttributeTagInfo alike. Windows refuses
every open of an unhandled tag without FILE_FLAG_OPEN_REPARSE_POINT, so the
test requires lstat to agree with stat rather than to succeed.
mashingaan's boykopovar/AnyPS5#6447 returned EINVAL for other reparse
points without the tag check.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Co-Authored-By: Claude Fable 5.1 <[email protected]>
A mounted folder uses the junction reparse tag and would otherwise be returned as a relative Volume GUID path. Only a drive path is reported, through the absolute-link text helpers.
The fchdir entry still said FreeBSD's search-permission check was not
modelled, although it has run on Linux since 0e4d94ce3 and now runs on
every host but Windows.
Morrowind imports fchown and stops at it once rtprio_thread and the pthread concurrency controls are in. Accept the guest's own owner and group (0) or unchanged (-1), fail an invalid descriptor with EBADF, and throw for another owner or group, since ownership is not modelled.
2 Ship 2 Harkinian (PPSA99621) imports fchmodat through std::filesystem::permissions and stops at start-up on main. Resolve AT_FDCWD and absolute paths as usual and join other relative paths to the directory descriptor like openat, accept 0 and AT_SYMLINK_NOFOLLOW, and mask the mode to 07777.
Dean