A title is jailed (agreed on #11216). FreeBSD 11.4 prison_priv_check denies
PRIV_SCHED_RTPRIO, PRIV_SCHED_SET and PRIV_SCHED_SETPRIORITY to a jailed caller.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
sceSysUtilSendSystemNotificationWithText builds the 0xc30-byte request
the 13.42 library builds (kind 5, the type at +0xc, at most 179
characters of text at +0x2d, an empty text for a null message) and
returns what sceKernelSendNotificationRequest returns. That call now
prints kind 5 requests as it prints kind 0 ones.
Replaces #9081 by @shanu337.
sceKernelHasTrinityMode returns 0, the answer of a base PS5, as
sceKernelIsTrinityMode already does. Two public readings of firmware
libkernel (OpenAGC for 11.60, Backport for 11.00 to 12.70) say it
compares hw.sce_main_socid with its low five bits cleared against
0x840fc0; the base PS5 SoC id recorded for sceKernelGetMainSocId,
0x840f80, fails that test. The prototype int (void) comes from the 23
calls in a UE5 title, each storing setne of the result in a guarded
static with no argument set up.
Titles import it from libkernel, but only the libkernel_sys placeholder
inventory exported it, as a throwing stub. The export moves to libkernel
next to sceKernelIsTrinityMode, and the inventory and its counts drop
the entry. guest_operation_mode checks the result.
MihawkOS (PPSA99170) reads sysctl {1, 14, 8, 0} while it starts and the
runtime throws on the unsupported MIB, which aborts the title.
KERN_PROC_PROC takes no pid, so the node lists the one guest process the
runtime hosts, as the same kinfo_proc kern.proc.pid already builds.
AI-assisted: yes
Emscripten targets wasm64 without x86 assembly, Linux-only headers or the
x87 long double. These changes add __EMSCRIPTEN__ paths beside the host
ones; native builds compile the same code as before.
- libc: long doubles in guest varargs and scanf go through
GuestLongDouble, a plain copy where long double is the x87 format;
APS5_EXPORT emits no assembler alias; the guest arena is one aligned
allocation that zeroes pages when they are committed again; getifaddrs
keeps its link-level entries on Linux; /proc lookups and the host
stderr duplicate are left out.
- libkernel: file-backed mmap, EVFILT_VNODE watches, getcontext and
setcontext throw; getdents replaces the raw getdents64 syscall;
getdtablesize takes the resource limit alone.
- VideoOut leaves SDL, the display window and the HDR probe out,
Sysmodule asks libkernel for unwind information and Net includes
sys/time.h.
On Windows, sceKernelRaiseException threw for a thread created suspended
and not resumed yet. FreeBSD libthr starts such a thread with signals
blocked and restores its mask on resume, so the signal stays pending and
is delivered on that thread once it runs.
The raise is now recorded in the thread's pendingException with a
compare-exchange, and the thread exchanges it for -1 when it leaves the
creation wait and delivers it to itself before its start routine. Both
sides use one atomic, so a raise racing a resume is either taken by the
thread or, after it started, delivered as for a running thread. Raises
while pending are merged, as for a standard signal.
guest_pthread_create_suspended now runs the deferred-delivery case on
every host, with a second raise while the thread is suspended.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Read APS5_GAME_MODE once at load, the same point where the Windows build
raises the scheduler tick, so an invalid value stops the title at start
with an error that names the variable and an unset one changes nothing.
Run the process session in a test executable linked with libc and leave
through LibcExit and LibcExitWithoutHandlers: the backend is released once
in both. Check that a refused request is never released, that off never
reaches the backend, that a second session is refused, that an unset
APS5_GAME_MODE is accepted and that APS5_GAME_MODE=bogus is rejected with
an error naming the variable.
Add CreateHostBackend (the GameMode client on Linux, the activity backend
on macOS, a backend that reports itself unavailable elsewhere),
StartProcessSession, which owns the one session of the process and
releases it from the libc shutdown callbacks that every exit path runs,
and StartFromEnvironment, which reads APS5_GAME_MODE and does nothing at
all when it is unset, empty or off. Build the files into libkernel; the
session is not started yet.
macOS throttles timers and background work of a process unless it holds an
NSProcessInfo activity (Apple, Foundation, NSProcessInfo
beginActivityWithOptions:reason:, with NSActivityUserInitiated and
NSActivityLatencyCritical, which asks for the highest timer and I/O
precision available). The tree has no Objective-C sources, so call the
runtime from C++: load libobjc and Foundation with dlopen, look up
objc_getClass, sel_registerName, objc_msgSend and the autorelease pool
functions, begin one activity, retain its token, and end and release it on
End. Both library paths are injectable, and any missing piece is reported
as unavailable. Nothing uses the backend yet.
Linux hosts running Feral's gamemoded switch the CPU governor and scheduler
for a registered game. The client the project ships is a header that loads
libgamemode.so.0 (then libgamemode.so) with dlopen and binds the library's
real_gamemode_request_start, real_gamemode_request_end and
real_gamemode_error_string symbols (FeralInteractive/gamemode at
a74b8106a2236d1f2696aa44c93bc4c8ef13b42e, lib/gamemode_client.h).
Do the same here with the library name list injectable: a missing library
or symbol is reported as unavailable, a failing request as refused, nothing
is linked, and the request is ended only when it was made. Nothing uses the
backend yet.
Accept off, on and auto, treat an unset or empty value as off so the
default stays as it is today, and reject anything else with an error that
names the variable and the accepted values.
A title that runs for hours would like the host to treat it as a game
(Feral GameMode on Linux, a latency-critical activity on macOS), but no
code owns that request. Add IBackend, the interface a host mechanism
implements, and Session, the state machine that requests once, releases
once, contains every backend failure and logs it once. Nothing uses it
yet.
The patched libkernel does not hand its plain C++ functions to the other patched libraries: every cross-library call in the tree goes through an extern C helper with a _nid suffix. The host CPU probe had none, so a library that wants the CPU model or the missing feature list cannot reach it. These helpers return plain structs, as the application metadata helpers do.
