Both call libkernel's pthread_mutex_init and pthread_mutexattr_init and
return 0x80020000 | errno on error, as shadPS4 (ce74386) exports them as
ORBIS(posix_pthread_mutex_init) and ORBIS(posix_pthread_mutexattr_init)
and ChonkyStation4 (c101a23) maps them to its POSIX init functions. A
mutex made without attributes is error-checking. FreeBSD 11.4's
malloc-internal _pthread_mutex_init_calloc_cb makes a normal mutex
instead; the gap is recorded in the libkernel_sys debt file.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
kldstat was a NotImplemented stub. It now follows FreeBSD 11.4's
sys_kldstat (sys/kern/kern_linker.c): only the version field is read
(EFAULT when that fails), and a version other than 1056
(struct kld_file_stat_1) or 2080 (struct kld_file_stat) is EINVAL.
No linker file is listed here, as for kldnext, so every file id then
gets ENOENT and the structure is never written.
Co-Authored-By: Claude Opus 5.5 <[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.
Follow FreeBSD 11.4 sys_kenv: KENV_GET, KENV_SET, KENV_UNSET and KENV_DUMP over
an in-memory kernel environment of at most 512 variables, with the 128-byte
name and value limits, ENOENT, EINVAL, ENAMETOOLONG and EFAULT.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Follow FreeBSD 11.4's sys_kldsym: EFAULT for an unreadable lookup
structure, EINVAL for a wrong version or command, EFAULT or
ENAMETOOLONG for the symbol name, ENOENT for a negative file id. Any
other lookup throws, as no kernel module is modelled. Adds
GuestCopyIn_nid_no_patch for the checked structure read.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
sigreturn applies FreeBSD 11's amd64 sys_sigreturn checks:
- EFAULT for a null context;
- EINVAL for unknown mc_flags, and for rflags bits outside
PSL_USERCHANGE that differ from the current flags;
- set_fpcontext's FPU format and ownership cases.
It then restores the context through the path setcontext uses, which
now lives in RestoreContext. A non-user %cs and an extended FPU state
still throw.
FreeBSD 11's sys_sched_setscheduler checks: a null parameter is EFAULT,
another process is ESRCH and an unknown policy is EINVAL. Pid 0 sets the
calling thread through scePthreadSetschedparam. Values that call
rejects, and the guest's own pid, whose first thread is not tracked,
still throw.
ProsperoEden declares the setter with the mode as its argument and the
getter with an int output, and measured on a PS5 that modes 0 and 1 are
accepted, 2 to 7 return 0x80020016 and 1 is the default. Both threw as
discovered stubs. Other modes and a null output throw.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Dean