The per-descriptor lock exists only in the Windows transfer path, so ShareDescriptor calls SharePositionedTransfer under _WIN32 like GuestFileLockShare. Linux failed to link libkernel with an undefined reference to it.
swscanf (HNnWdT43ues) runs the swscanf_s scanner without the buffer
size arguments after %s, %c and %[, as FreeBSD's swscanf.c passes its
arguments to vswscanf. Both entry points share one engine with a flag
for the sizes; swscanf_s behaves as before.
Title: PS5CEMU-HAR PPSA99360 imports swscanf from libSceLibcInternal.prx
(import audit with --trap-sdk-syscall-stubs, registry index 292, right
after pthread_setaffinity_np at 276). Predicted stop line once
pthread_setaffinity_np resolves, without this change:
FAIL: unresolved ELF import HNnWdT43ues (swscanf) from libSceLibcInternal.prx
NID from tools/nid_names.py, confirmed in shadPS4 aerolib.inl:51950
(e0a466753a1a). Prototype in ps5-payload-dev include/freebsd/wchar.h:133,
export in sce_stubs/libSceLibcInternal.c:8582 (f5d40f02770e).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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)
v_cvt_f32_ubyte0 accepts every SDWA source selector, but the other three byte
conversions had no VOP1 SDWA rule, so any SDWA source select on them was refused
("VOP1 SDWA source selector 4 of opcode 0x12 at pc 0xfcc is not supported").
The selected and optionally sign-extended source goes through the same operand
path as for ubyte0 before byte N is extracted: SDWA supplies source 0 (RDNA 2 ISA
guide 6.8 and 13.3.7) and the opcode reads S0.u[8N+7:8N] (12.8).
agc_driver_sdwa_cvt_f32_ubyte: WORD_0 and WORD_1 selects on ubyte1, and
sign-extended WORD_1 and BYTE_3 selects on ubyte2 and ubyte3.
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.
Titles that link the character conversion library under its module name
need libSceCesCs-module.prx, which nothing built: Void Terrarium
(PPSA03061, #5055) and Call of Duty: Black Ops (PPSA34501, #5389) were
run with a copy of libSceCesCs.prx under that name. Both libraries are
now built from the same source by add_sce_ces_library, as libScePsml and
libSceFont-module are, and guest_ces_module runs the CesCs test against
the module-named library.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Resolve a host name to its first IPv6 address through the host resolver
(getaddrinfo with AF_INET6) and write the 16-byte address. The lookup
shares the IPv4 path's resolver bookkeeping (abort preservation, error
state); a name without an IPv6 address fails with RESOLVER_ENODNS like a
failed lookup. Nonzero flags throw.
Metal Gear Solid 4 Master Collection (PPSA18194) imports it and failed to
load without it (unresolved zl35YNs9jnI from libSceNet.prx).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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>
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