FreeBSD's kern_clock_nanosleep writes the remaining time only when the sleep is cut short. A completed sleep zeroed rmtp, so nanosleep(&ts, &ts) in a polling loop slept zero time from the second call on.
sceKernelGetProcessTime and sceKernelGetProcessTimeCounter measured from
a start captured on their first call, so the first reading was about 0
however long the process had run, and exactly 0 when both reads fell in
one tick of the host clock (100 ns on Windows). Capture the start when
libkernel loads.
scePthreadCancel and pthread_cancel threw, scePthreadTestcancel did
nothing and the cleanup handler exports did not exist.
A cancel request is now recorded on the thread and acted on at
scePthreadTestcancel, the condition variable waits, scePthreadSem and
sem waits, scePthreadJoin and the sleeps, and under their POSIX names.
A thread blocked in one of the waits is woken; a condition wait takes
its mutex back before the thread exits. The thread exits with
PTHREAD_CANCELED through scePthreadExit, which now runs the handlers
of __pthread_cleanup_push_imp and __pthread_cleanup_pop_imp.
scePthreadSetcancelstate and scePthreadSetcanceltype reject unknown
values, and pthread_setcanceltype is added.
Constants, the handler node layout and the order of events follow
FreeBSD libthr. A sleep is not interrupted, file and socket calls are
not cancellation points and the asynchronous type acts like the
deferred one except at the two set calls (TechnicalDebt). New test:
guest_pthread_cancel.
FreeBSD's gettimeofday stores the time only when tp is not null, and
clock_getres the resolution only when res is not null; both succeed
otherwise. Both threw, which aborted a title probing a clock or only
asking for the time zone. Write into a local result instead.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceKernelGetProcessTime and sceKernelGetProcessTimeCounter subtracted
GetStartNanos() from GetMonotonicNanos() in one expression. GCC reads the
clock first, so on the first call in a process the start was captured
after it and the result wrapped to about 2^64.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
clock_gettime and clock_getres served three FreeBSD clock ids with the wrong
clock or not at all:
- CLOCK_VIRTUAL (1) was the monotonic clock on Windows and threw on Linux; it
is the user CPU time of the process.
- CLOCK_PROF (2) threw on both hosts; it is the user plus system CPU time of
the process.
- CLOCK_SECOND (13) returned the coarse realtime clock with nanoseconds and a
sub-second resolution; it is the current second with tv_nsec 0 and a
resolution of one second.
Behaviour follows FreeBSD 11 clock_gettime(2) and kern_clock_gettime /
kern_clock_getres in sys/kern/kern_time.c.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
nanosleep and _nanosleep forwarded the result of sceKernelNanosleep, which
returned -1 for a rejected request: errno was never set, and the sce call
returned a value that is not an sce error. A request with negative seconds
was rejected as well, where FreeBSD's kern_nanosleep returns 0 without
sleeping.
nanosleep and _nanosleep now return -1 with errno set to EINVAL when tv_nsec
is outside [0, 1000000000) and to EFAULT for a null request;
sceKernelNanosleep returns the matching SCE_KERNEL_ERROR code. A request
with valid nanoseconds and negative seconds returns 0 at once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
CLOCK_THREAD_CPUTIME_ID (14) and CLOCK_PROCESS_CPUTIME_ID (15) threw
"unsupported clock_id" on Windows while the Linux branch already maps
them to the native clocks. clock_gettime now returns the user + kernel
time from GetThreadTimes / GetProcessTimes, and clock_getres reports the
clock interrupt period from GetSystemTimeAdjustment, which is the step
those counters actually advance by.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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
libkernel: a TimedWait service for condition variables, semaphores, event flags, rwlocks and
equeues with the scheduler tick; mutex/cond/sem corner cases the title hits; job worker
affinity is opt-in (APS5_JOB_AFFINITY). libc: calloc/realloc heap slot swap, a default
terminate handler with a backtrace, CPU topology helper. libSceRtc export fixes with tests.
libSceVideoOut: APS5_NO_PAD_INPUT ignores host input for unattended measurements,
APS5_FLIP_QUEUE_WAIT keeps a stalled process alive for a debugger. ApplicationHeap and
GuestRtc tests wired into the test build.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177gthrWEBBfBu5xJDXgBfo
- libc: reserve guest memory in one arena below the PS5 map limit with
MEM_WRITE_WATCH (GuestArena) and a caching guest heap; the allocation
registry gains a generation counter, an invalidator callback for the
driver's page cache and a pin waiter for leased ranges. This replaces
the fault-based GuestMemoryTracking/GuestMemoryBacking layer, whose
files are removed.
- libkernel: mmap/mprotect/munmap on the arena, flexible memory budget,
real sceKernelVirtualQuery; POSIX pthread layer, rwlocks, timed locks,
TSD, event flags; 0.5 ms scheduler tick and high-resolution sleeps;
TSC/clock/time functions; file APIs return SCE errno codes; the APR
file-streaming API.
- libc: vectored crash reporter with backtraces for fatal exceptions,
SIGABRT, UCRT invalid parameters and process exit; SSE4a EXTRQ/INSERTQ
emulation for Intel hosts; %ls/%lc/%S/%C with the guest's 16-bit
wchar_t; hand-written setjmp/longjmp for the guest jmp_buf; a path
alias table for short save-data mount points; more string, stdio and
math exports.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177gthrWEBBfBu5xJDXgBfo
Dean
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