PS5MC (PPSA99420, Kodi 22) imports getpriority (miQ1wVwSexE) from
libkernel.prx, one reference, next to chflags in its import order.
Predicted stop once the imports ahead of it are covered (not a run):
FAIL: unresolved ELF import miQ1wVwSexE from libkernel.prx
The NID is computed with tools/nid_names.py and matches aerolib.
Follows FreeBSD 11.4 sys/kern/kern_resource.c sys_getpriority
(8c639945a44588f6cfdddfb057bb5aad88735da0) for the only guest process,
taken to run at nice 0 and to lead its own process group (as kill and
setsid already assume): PRIO_PROCESS and PRIO_PGRP with 0 or its pid,
and PRIO_USER with 0 or its uid 0, return 0; other ids give ESRCH and
an unknown which gives EINVAL. getpriority is a bare system call in
FreeBSD's libc (lib/libc/sys/Symbol.map), so errno is left unchanged
on success.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit 63262245d274342b693fda146ae9feca3752b6e3)
The rebase onto main deleted docs/dev/TechnicalDebt.md, which is now the
index that points into docs/dev/debt/. Restore it from main and add the
missing final newline to docs/dev/debt/libSceNgs2.native.md.
PS5MC (PPSA99420, Kodi 22) imports chflags (ixrw0h2tWuI) from
libkernel.prx, one reference. Predicted stop once the imports ahead of
it (pthread_getthreadid_np, sendfile, wcstok, pause, setrlimit and the
termios calls) are covered (not a run):
FAIL: unresolved ELF import ixrw0h2tWuI from libkernel.prx
The NID is computed with tools/nid_names.py and matches aerolib.
Follows FreeBSD 11.4 (8c639945a44588f6cfdddfb057bb5aad88735da0)
sys/kern/vfs_syscalls.c kern_chflagsat and setfflags, and
sys/ufs/ufs/ufs_vnops.c ufs_setattr, for a root caller: the lookup
through the guest resolver gives EFAULT, ENOENT and ENOTDIR (also for a
file reached through a trailing slash or used as a directory), a bit
outside the 17 UFS flags of sys/sys/stat.h (VNOVAL included) gives
EOPNOTSUPP, and SF_SNAPSHOT gives EPERM, since the snapshot flag cannot
be toggled. No host keeps BSD file flags and stat reports st_flags 0,
so flags 0 succeed without touching the file and any other flag throws
with the flags named. UF_READONLY and the other Windows-attribute flags
are not mapped to FILE_ATTRIBUTE_READONLY and its siblings: UFS stores
them without enforcing them, and on Windows the read-only attribute is
already the owner write bit of chmod.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit 16e5b7ccd04e6467a5a282b6cfc9271304f42244)
A draw with PA_SC_AA_CONFIG.MSAA_NUM_SAMPLES > 0 whose context never
wrote PA_SC_AA_SAMPLE_LOCS_PIXEL_* (context 0x2fe-0x30d) was rejected
with "missing register in context bank at DWORD 0x2fe", because the
registers were absent from the initial context (PPSA07411 stops on it
after two frames). The MSAA_ENABLE single-sample path read them the
same way.
The sixteen registers now start at 0, both initially and after
CLEAR_STATE. That is the value in libSceAgc's own register defaults
(sceAgcGetRegisterDefaults2, every public table that holds context
registers, the tables the initial context already follows for
PA_SU_VTX_CNTL and PA_SC_CONSERVATIVE_RASTERIZATION_CNTL), in amdgpu's
GFX10 clear-state table (clearstate_gfx10.h, gfx10_SECT_CONTEXT_def_8,
loaded by gfx_v10_0_cp_gfx_start before CLEAR_STATE) and the GC 10.3
register reset value (gc_10_3_0_default.h). RADV, radeonsi and PAL
always write the locations themselves and do not settle the unwritten
value.
0 puts every sample at the pixel center. That is not the standard
pattern for any sample count, so such a draw decodes as custom
locations at the center, as a single-sample scan into a multisampled
target already does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PS5CEMU-HAR (PPSA99360, ps5-payload-dev build, relinks with
--trap-sdk-syscall-stubs) imports pthread_setaffinity_np (5KWrg7-ZqvE)
from libkernel.prx. babyhuey's run with #3787 merged onto main e7c70a2d
(PR #3787, 2026-10-12T10:54:44Z) stops at it:
Windows: FAIL: unresolved ELF import 5KWrg7-ZqvE (pthread_setaffinity_np) from libkernel.prx
Linux: undefined symbol: 5KWrg7-ZqvE (pthread_setaffinity_np)
It follows FreeBSD 11.4 libthr thr_affinity.c (8c639945) over
kern_cpuset_setaffinity: another thread is looked up first (EINVAL for
null, ESRCH when unknown or finished, as _thr_find_thread without dead
threads), a size other than the 32-byte cpuset_t returns ERANGE, the
mask is clipped to sceKernelGetAvailableCpumask and an empty result
returns EDEADLK, as cpuset_setaffinity does. The affinity is stored on
the guest thread through scePthreadSetaffinity, for the caller and for
any live guest thread.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Add missing libc.prx symbols required by Unity IL2CPP runtime:
- Implement _Dtest double classification in Math.cpp
- Implement _Inf double constant in Math.cpp
- Implement sceLibcBacktraceGetBufferSize and sceLibcBacktraceSelf in Backtrace.cpp
- Implement _Cnd_signal in Threads.cpp
- Implement _ZNSt8ios_base7_AddstdEPS_ in RuntimeSupport.cpp
- Implement __pointer_type_info and __function_type_info vtables in TypeInfo.cpp
- Remove duplicate stubs from libSceAmpr/Export.cpp
- Add unit tests in GuestMath.cpp and GuestLibcThreads.cpp
- Document unverified behaviors in docs/dev/debt/libc.md
The cache from #5107 was keyed by Mesa version only, so a runner restored
llvmpipe code compiled on another runner's CPU and about 85 agc tests died
with SIGILL (Illegal instruction) on main.
Co-Authored-By: Claude <noreply@anthropic.com>
FreeBSD msun e_acosf.c returns (x-x)/(x-x) for |x| > 1 and NaN inputs: the
x86 default NaN 0xffc00000, or the quieted input NaN. std::acos left it to the
host libm, and guest_math failed on the runner's glibc 2.39.
Co-Authored-By: Claude <noreply@anthropic.com>
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