FreeBSD sys_flock takes LOCK_UN over LOCK_EX over LOCK_SH, ignores other
bits and fails with EBADF when none of the three is set. The operation
reached the host unchanged, so malformed operations differed between
hosts: Linux rejects them with EINVAL and the Windows lock tracking threw.
Decode the operation before either host sees it.
flock mapped each call straight onto LockFileEx/UnlockFileEx, whose
byte-range locks stack per handle. LOCK_UN without a lock failed with
ERROR_NOT_LOCKED and aborted the process, a repeated LOCK_EX blocked
forever, converting between shared and exclusive failed, and a repeated
LOCK_SH needed as many unlocks.
Track the one lock each descriptor holds: a repeated mode and LOCK_UN
without a lock succeed, a conversion releases the old lock before taking
the new one, and close forgets the descriptor's lock.
Each Windows AIO request is an overlapped ReadFile/WriteFile at the
request's offset, which on a synchronous handle also moves the
descriptor's file pointer; on the console AIO transfers leave it alone.
The requests now go through the positioned path sceKernelPread and
sceKernelPwrite use (NativePositioned in Stdio.cpp, exposed as
NativePositioned_nid_no_patch), which restores the pointer afterwards.
Negative offsets still fail with EINVAL before the transfer.
GuestAio sets the offset to 2 before a write batch and checks it is
still 2 after. TechnicalDebt records that a concurrent read or write on
the same descriptor can see the moved pointer in between, as for the
pread family.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UTjpbMX7BUFMZZaxJE98zV
read, write, _read and _write on a guest socket descriptor went to the
host, which has no such descriptor, so sceKernelRead and sceKernelWrite
threw. They now reach the socket as recv and send without flags, with
the socket layer's errno (EAGAIN 35, EPIPE 32, EBADF 9), a zero-length
read returns 0 as dofileread does, and the two sceKernel forms return
the kernel error for the same cases. The host's SIGPIPE on EPIPE, a
write above INT_MAX bytes, readv, writev and the positioned forms are
recorded in TechnicalDebt.
OpenSSL's QUIC notifier signals its socketpair with write and read.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
A title's descriptors are taken as never being terminals: a file or
pipe gets ENOTTY with the termios untouched, a socket gets what its
protocol answers a termios ioctl on FreeBSD (EADDRNOTAVAIL for AF_INET,
EOPNOTSUPP otherwise), and a closed or invalid descriptor EBADF.
tcsetattr gives EINVAL for an action other than TCSANOW, TCSADRAIN or
TCSAFLUSH, with or without TCSASOFT, before anything else, and EFAULT
for a null termios before the descriptor is checked; with TCSASOFT a
null termios throws, where FreeBSD's libc faults copying it. What the
console gives a title as descriptors 0 to 2 is unknown, as recorded in
TechnicalDebt.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
FreeBSD's unlink(2) reports EPERM for a directory, but the host call
returns EACCES on Windows and EISDIR on Linux, so the guest saw a
different error on each host. Check for a directory, not following a
symbolic link, before unlinking.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Each direct memory backing keeps a memfd open, so a title such as
Dreaming Sarah (PPSA02929) holds about 1100 descriptors at startup.
With the systemd default soft limit of 1024, later opens fail with
EMFILE: memfd_create throws "create direct memory backing: Too many
open files", or the title's fopen returns NULL and it faults in fread.
libkernel now raises the RLIMIT_NOFILE soft limit to the hard limit
when it is loaded, before the title creates any descriptor, and throws
if the limit cannot be read or raised.
Opening a volume needs administrator rights, so the volume flush skipped
every volume in a normal user session. The libc, libkernel, save data and
app content file functions now record each host file and directory they
change. On Windows sceKernelSync flushes the recorded paths that changed
since the previous call, plus their changed parent directories, through
handles a normal user can open. Linux still calls sync().
Gathering every iovec into one host buffer threw for a total above
INT_MAX, which a console readv/writev accepts, and copied the whole
transfer twice. Each iovec is now read or written in place, in chunks
of at most INT_MAX bytes. A readv on a pipe returns after one read so
it does not block once the available bytes are consumed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UTjpbMX7BUFMZZaxJE98zV
sceKernelReadv, sceKernelWritev, sceKernelPreadv and sceKernelPwritev threw on Windows. They now gather or scatter through one host buffer and issue a single read or write, with the same argument checks and error codes as the Linux path. Positioned transfers restore the file offset afterwards, as pread and pwrite do on POSIX, and report ESPIPE for handles that are not disk files. guest_file_vector now runs on Windows as well.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UTjpbMX7BUFMZZaxJE98zV
LEGO Horizon Adventures imports 19 functions that no library exports
and no open pull request adds, so it fails eager binding. They are
declared as throwing stubs. The two libSceAjmWVorbis imports have no
known name and are exported by NID from libSceAjm.native.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Implement scePthreadGetschedparam and scePthreadSetschedparam on top of
the thread priority, POSIX utimes and fsync on top of sceKernelUtimes
and sceKernelFsync, and sceUserServiceGetAccessibilityZoomFollowFocus
like the other accessibility queries. Add the remaining imports of
PPSA12544 as unimplemented exports and record unknown NIDs and
signatures in the technical debt.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
open, _open, stat, unlink and rmdir forwarded the result of their sceKernel
twin, so a failure returned 0x8002xxxx instead of -1 and errno was never set
to the guest error. They now return -1 with errno set to the code carried by
the sce error, and report a null pointer as EFAULT and an empty path as
ENOENT.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A file read into guest memory is a host write: before the I/O it pins the shared pages it
covers, which reopens any page armed for write tracking and keeps write tracking from arming
it again until the read ends, when the pages count as written. A destination the guest cannot
write fails with EFAULT before any I/O; read and pread throw as for any failed read, AIO
reports SCE_KERNEL_ERROR_EFAULT, and APR throws. APR also throws when a read ends before the
requested size.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Only the lines this branch added lose their comments; the commits before
keep them, with the reasoning behind each change, for whoever digs into
that code later.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
libkernel:
- direct memory keeps its contents per physical page across unmap and
remap; a page mapped at two live addresses at once throws
- sceKernelDirectMemoryQuery answers from tracked allocations
- SCE protections read back as set, GPU and AMPR bits included
- APR prefix path resolve, file size and stat by id, positional reads,
fsync/pread/pwrite; directories open as descriptors on Windows
- sceKernelCheckReachability, getpeername, shutdown
- Dinkumware C11 threads (_Mtx_*, _Cnd_*, _Thrd_*) in the title libc
layout; any pthread stack size, rounded at thread creation
libc:
- unaddressed guest mappings go to the system-managed area from
0x2_0000_0000, leaving the application area to fixed mappings
- the process starts in /app0
- guest sscanf on Windows; a null %s prints as (null) as on FreeBSD
- localeconv, _FNan, _FDtest, _FExp, __udivti3, wcsncpy_s, aligned
operator new, _Throw_Cpp_error
Tests: direct memory following physical pages, guest formatting.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Bring in the resolved#25 branch, which already carries upstream main
including boykopovar/AnyPS5#10, and re-apply the KernelErrors.hpp
refactor onto the rewritten files:
- Equeue: drop the local EQUEUE_ERROR_* constants and use the shared
SCE_KERNEL_ERROR_* names.
- Pthread Attr/Thread: drop local error constants and include
KernelErrors.hpp.
- Pthread Cond/Mutex: take upstream; they no longer define local
SCE_KERNEL_ERROR_* constants.
- Semaphore: drop KERNEL_SEMA_ERROR_* in favour of KernelErrors.hpp.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018emyZ4Rk8yoSJvxTFBe4DL
Resolve conflicts with boykopovar/AnyPS5#10 (sce module loading) and
later upstream changes.
- Pthread Cond/Mutex: take upstream. It already releases mutex
ownership across condition waits, returns ETIMEDOUT 0x8002003C, and
rejects unlocks from non-owners for every mutex type.
- Pthread Thread: keep upstream's lifecycle, Windows adoption and job
affinity; re-apply the POSIX fixes on top: reference-counted
release on join/detach/exit, self-join rejection on both platforms,
and scePthreadSelf adoption for threads not created by
scePthreadCreate.
- Semaphore: keep upstream's TimedWait::Condition and wait tracing;
re-apply sceKernelDeleteSema waking waiters with EACCES.
- Relinker: keep --windows-gui alongside upstream's --skip-sce-module,
trampoline-aware Patch signature and new Python tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018emyZ4Rk8yoSJvxTFBe4DL
Brings in main up to 9958d26 (homebrew runtime, POSIX wrappers in
libkernel, sce_module guest modules and --skip-sce-module, the --to-intel
general pipeline, libSceRandom, libSceRtc, libScePosixForWebKit,
libRenoirCore, test wiring).
Resolutions where both sides implemented the same thing:
- libkernel pthread: main's structure (lazy static initialisation,
destroyed markers, MutexOperations/CondOperations, mutex protocol and
condattr clock) with this branch's TimedWait deadlines and condition
(precise timed lock/wait on Windows), wait tracing, the adaptive mutex
type 4, POSIX default ERRORCHECK mutexes, EDEADLK/EPERM results instead
of throws, and condition clocks honoured for absolute timeouts.
- libc locale: the guest Dinkumware ABI (_Locimp, facet vtables, short
ctype/case tables, locale ids, stream storage) is kept because guest code
inlines those layouts; main's C character functions are kept on top.
- libc stdio/strings/math: main's stream functions (guest FILE status
sync), strerror/perror, remove, formatting, string and math exports win
over this branch's duplicates.
- libc paths: main's working directory with this branch's path aliases
resolved on the normalised guest path.
- libkernel file: this branch's sceKernel* results as SCE errors, main's
POSIX wrappers and both fstat helpers.
- relinker: this branch's stub lowering keeps its trampolines through the
main executable path; guest modules refuse lowerings that need stubs.
- AGC driver: main's rendering wait is executed by this branch's workers.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177gthrWEBBfBu5xJDXgBfo
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