On Windows, mmap sent a shared memory descriptor straight to the shared
file mapper, skipping the checks and the private path that a regular
file descriptor takes. A private mapping of a named or anonymous object
then failed with EOPNOTSUPP, and a writable shared mapping of a
read-only descriptor failed with EIO instead of EACCES. Shared memory
objects are files on Windows, so they now take the same access checks
and the same private copy as a regular file; only the directory, device
and file-type refusals stay limited to other descriptors.
guest_named_shm_windows_mapping covers shared mappings through two
descriptors, pread and pwrite against them, an offset mapping, a private
mapping, read-only mappings and the mappings after shm_unlink.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
PS5_PayloadSDK measured in a title (firmware 12.09) that
pthread_getaffinity_np answers sets of 8 and 16 bytes and returns ERANGE
for 32 bytes or more, so FreeBSD's 32-byte cpuset_t is refused. The call
accepted exactly 32 bytes and refused every other size. Sizes under 8
keep ERANGE; 17 to 31 bytes, between the measured sizes, throw.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Return the main program's handle, the first one sceKernelGetModuleList
lists and one sceKernelGetModuleInfo accepts. reSOT (PPSA99023) imports
it from libkernel and passes the handle to sceKernelGetModuleInfo to find
its own code segment; before this its eboot failed to load on the
unresolved import.
The PS5 3.20 export lists have it in libkernel as well as libkernel_sys,
and on Windows a libkernel import never reaches libkernel_sys, so the
throwing libkernel_sys stub moves to libkernel as pselect did.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Keep a copy of the name with the semaphore and move the export from the libkernel_sys stub into libkernel next to the other sem_* exports.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
A title with param.sfo gets bit 23 (0x00800000) of its ATTRIBUTE key,
the PS4 Pro (Neo) mode support flag, and 0 without the key, as shadPS4
answers on a Neo console; sceKernelHasNeoMode and sceKernelIsAuthenticNeo
already report one. A title with param.json still throws: what a PS5
application gets is unknown. The param.sfo parser now reads ATTRIBUTE and
libkernel exposes it to the other libraries.
FreeBSD re-evaluates a kqueue's EVFILT_READ note from kqueue_wakeup,
which runs whenever the watched kqueue queues a note, so an EV_CLEAR
note fires again only after such an activation. The equeue now counts
activations, and the EV_CLEAR note fires when the count moves while
notes are queued.
The PS5 3.20 export lists have ksem_* in libkernel as well as
libkernel_sys, and on Windows a libkernel import never reaches
libkernel_sys, so titles importing them from libkernel did not find
them. Following pipe1os's review on #9284, also: ENOSPC from
ksem_init when no descriptor is left, the SEM_MAX limit of 30 with
ENOSPC, and dup/dup2 from a ksem id throwing as for a kqueue.
TakeSnapshot read FileBasicInfo and then FileStandardInfo. A truncate or
write landing between the two left a snapshot with the new size and the
old LastWriteTime, and the next poll reported the same size with a newer
LastWriteTime as NOTE_WRITE. guest_kqueue's FileWatch aborts on Windows
when that happens after its ftruncate to 0.
Read FileBasicInfo again after FileStandardInfo and retry until both
reads agree. The window NTFS itself leaves, a truncate's new
LastWriteTime shown before its new size, stays and is listed in the
libkernel debt.
A guest mmap with PROT_EXEC and MAP_SHARED of a shared-memory object or a regular file threw on Windows. The section is now created from a handle reopened with GENERIC_EXECUTE, as PAGE_EXECUTE_READ or PAGE_EXECUTE_READWRITE, the owner ACE of named objects grants execute with read, and a writable shared mapping of a read-only descriptor fails with EACCES, as FreeBSD 11.4 shm_mmap and vn_mmap do.
Fixes#12337
Both log their arguments and the caller and return. Note what the
titles' bundled libc.prx passes them and that three of its
sceKernelDebugRaiseException calls are followed by ud2 in every build
checked, so the guest reaches that ud2 here.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Adrià