On Linux and macOS, sceKernelRaiseException runs the guest handler in
the target's SIGUSR1 handler wherever the thread was interrupted. A
thread interrupted while it held the address-wait lock of
sceKernelSyncOnAddressWait, sceKernelSyncOnAddressWake or _umtx_op ran
the handler with the lock held, so a handler that waits, as a
stop-the-world collector's does, blocked every other thread that waits
on or wakes an address. #5756 fixed this on Windows.
The address-wait lock is now taken under DeliveryDeferral on every
host. On POSIX the deferral is a count per thread: while it is raised
the SIGUSR1 handler only records the signal, and DeliverDeferred sends
it to the thread again once the lock is released. An address waiter
waits on its own semaphore (sem_t, a dispatch semaphore on macOS) with
the lock released and the deferral lifted, so a raise reaches a thread
that waits for an address without a timeout.
The address-lock phases of guest_raise_exception now run on every
host, with a new phase that raises at a thread in an unbounded address
wait.
sceFontGetFontStyleInformation fills the 24-byte style block through the
driver slot at SysDriver+0x48, as libSceFont and libSceFontFt do in
firmware 13.60: the FreeType family and style names, the italic and bold
flags, the OS/2 weight class when it is a multiple of 100 from 100 to 900,
the width class below 10, and 1 plus a right-to-left head direction plus
0x80 for vertical metrics. A font-set record supplies the same fields
directly. A failed call points both names at an empty string and clears
the rest.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
sceFontGetFontMetrics fills the 64-byte metrics block through a new
driver slot at SysDriver+0x98, as libSceFont and libSceFontFt do in
firmware 13.60. Form 1 reads hhea, 2 the OS/2 typographic values, 3 the
OS/2 Windows values and 4 the vertical values from vhea or OS/2; 2 and 3
fall back to hhea when OS/2 is missing or gives an empty range. The
bounding box, em size, raw weight deltas and slant follow. A failed call
clears the block and sets both weights to 1.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
expm1 returned the host's expm1, whose last bit differs from the titles'
copy on Windows on 35,152,346 of 320 million random arguments. The titles'
copy is FreeBSD msun's s_expm1.c, and it sets ERANGE only when a finite
argument overflows to infinity. expm1 now computes that algorithm and sets
ERANGE there.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
FreeBSD's kern_pselect installs the mask and kern_select sleeps with
PCATCH, so a pending signal that the new mask unblocks makes the call
return EINTR once the descriptors have been scanned. Here the handler ran
inside the mask swap and select then waited the full timeout, or forever
with no timeout. The swap now reports whether a handler ran, and pselect
then scans the descriptors once without waiting: a ready descriptor, a
zero timeout or an invalid argument keep select's answer, and otherwise
the call fails with EINTR and leaves the descriptor sets unchanged.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Accept SCE_NGS2_RACK_ID_CUSTOM_MASTERING (0x4003) using the 0x508-byte
custom rack option layout without modules. Channels above NGS2_MAX_CHANNELS
(8) and non-zero module counts throw runtime_error as unsupported. Support
mastering voice control parameters 0x40030000 (setup), 0x40030004 (gain),
and 0x40030005 (output), write active mastering voices to render buffers,
and return voice state flags in sceNgs2VoiceGetState.
References #8039.
The connect-to-AF_UNSPEC debt entry only described Linux. On Windows a socket bound to an explicit address keeps it in the same way, getsockname reports the host address, and a sendto to a non-loopback address then fails with ENETUNREACH, where FreeBSD's udp_disconnect() resets the local address and the send succeeds.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
sceKernelGettimezone wrote {0, 0} for every zone. A PS5 on firmware
13.40 set to US Eastern returned tz_minuteswest -300 and tz_dsttime 60:
the standard offset in minutes east of UTC, without the summer time in
effect on the run date, and the zone's daylight saving amount in
minutes. Both now come from the host zone, through the same HostZoneAt
and HostDaylightAmount the calendar conversions use.
guest_freebsd_clocks checks five TZ settings (UTC0, IST-5:30, BRT+3,
EST5EDT, CET-1CEST) and the null pointer.
Dean