sigprocmask and _sigprocmask threw std::invalid_argument for a how other
than SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK, which ends the title. FreeBSD
returns -1 with EINVAL and leaves the old mask uncopied, and ignores how
when set is null; pthread_sigmask here already returns EINVAL. The check
now comes first, before the previous mask is written.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
An ITIMER_REAL or alarm expiry while SIGALRM is blocked is marked on the
pending set of sigtimedwait instead of throwing, as kern_psignal leaves a
blocked signal pending. sigwait, sigwaitinfo and sigtimedwait take it,
repeated expiries merge into one pending signal, and unblocking it runs a
guest handler on the unblocking thread or, with the default disposition,
exits the process with status 142 as FreeBSD's default action does.
The expiry rechecks the mask after marking the signal, so an unblock that
races it does not leave SIGALRM pending while unblocked, and TakePending
clears the bit with the value it read so one signal is taken once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sysarch's AMD64_GET_FSBASE, AMD64_GET_GSBASE and AMD64_SET_GSBASE now
follow FreeBSD 11's amd64 sysarch on Linux x86-64 through arch_prctl: the
GS base is the calling thread's, a base at or above VM_MAXUSER_ADDRESS
returns EINVAL and a null argument EFAULT. AMD64_SET_FSBASE, whose base
guest and host code share for their TLS, other operations and other hosts
still throw. Wine sets its TEB this way.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
setitimer refuses to arm the CPU interval timers and already reads and
disarms them as zero, so they are never armed. getitimer threw for them
instead of reporting that state, as FreeBSD's kern_getitimer does for a
timer that is not set.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
FreeBSD's getrusage rejects an unknown `who` with EINVAL before it
copies anything out and returns EFAULT when the result can't be
written. The HLE threw std::invalid_argument for both, which ends the
title.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PPSA16833 imports it from libkernel, and its executable does not load
while no library exports the NID. The signature is unknown, so it throws
if called, like sceCoredumpWriteUserString.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On macOS the RLIMIT_NOFILE soft limit is not a bound on the descriptor table: setrlimit accepts soft limits above kern.maxfilesperproc, RLIM_INFINITY included, and getrlimit reports what was set, so returning the guest soft limit alone could report up to INT_MAX for a table of about 122880 descriptors, and a closefrom-style loop up to that value would run billions of iterations instead of about 122k. Return the smaller of the guest soft limit and the host's ::getdtablesize(), which is the FreeBSD sys_getdtablesize result. The guest test derives its expectation from the host call instead of the implementation's formula, and the debt entry no longer claims the limit is raised when libkernel loads outside Linux. Reported by jotitadev in review of the getdtablesize implementation.
uname reads kern.ostype, kern.hostname, kern.osrelease, kern.version and
hw.machine through sysctl. Super Mario Sunshine (PPSA99312) stopped on the
first, "sysctl_nid_postfix: unsupported MIB 1.1". sysctl now serves the five
as read-only strings: FreeBSD 11.4-RELEASE's values for the type, release and
version, the host name gethostname reports, and amd64. A new value returns
EPERM as for the other read-only names, and a trailing name component returns
ENOTDIR.
Return the RLIMIT_NOFILE soft limit that getrlimit reports, capped at INT_MAX: FreeBSD sys_getdtablesize returns the smaller of that limit and maxfilesperproc, and the guest limit never exceeds the hard limit that bounds it here. The guest test now asserts the value instead of the throw, and the debt entry records the semantics.
sceCoredumpGetThreadContextInfo takes (void* threadContextInfo,
size_t threadContextInfoSize) as in Orbital's IDA type database, and the
144-byte block of 18 64-bit registers follows SharpProspero. It answers
as sceCoredumpGetStopInfoCpu: the handler is never invoked here, so an
aligned 144-byte request returns NOT_IN_COREDUMP_HANDLER without reading
or writing the block, and null, unaligned or wrapping buffers and other
sizes throw, as the console validation order is unverified.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Map hw.model, hw.ncpu, hw.physmem, hw.realmem, kern.arandom and
kern.proc.pathname to their FreeBSD MIBs with the size handling of
FreeBSD's libc wrapper over name2oid, fail with ENOENT and ENAMETOOLONG
as name2oid does, and throw for null pointers, which FreeBSD's wrapper
dereferences, and for names sysctl does not serve.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Titles run natively, so a host CPU without an extension that compiled Zen 2 code uses faults with an illegal instruction deep inside a title (#3719: SHLX, BMI2). libkernel now reads CPUID and XCR0 when it loads on Linux and Windows, logs the host CPU's extensions and throws, naming the CPU and the missing extensions, before any title code runs.
XPSemu (PPSA97358) queries RLIMIT_NOFILE at start-up in QEMU's
os_setup_limits and stopped on the unsupported resource. It reports the
descriptor count after which AnyPS5 fails with EMFILE: the C runtime's
8192 low-level descriptors on Windows and the host limit on Linux.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PPSA50011 imports setpriority and stops at start-up once getpriority is implemented. Accept PRIO_PROCESS, PRIO_PGRP and PRIO_USER for the guest's own process and fail with ESRCH for any other id and EINVAL for any other which, leaving errno unchanged on success like FreeBSD's libc; the value is not applied, since the guest nice is not the host's scheduling class.
The mimalloc in PS5MC (PPSA99420) reads vm.overcommit at start-up and
stopped on the unsupported name. It reports FreeBSD's default, 0.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Adrià