PPSA08427 (Killing Floor 3) stops on main at start-up because its bundled
pros.sdk.Prospero.prx imports it:
pros.sdk.Prospero.prx.guest.prx: undefined symbol: y7JD1gfwyfA
The signature is unknown, so it is declared without parameters and
throws, like the other entitlement flag queries the title does not reach.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uzy15wqYTt6iWyxYXEzUWo
sceAgcDebugRaiseException (NID T6xuVw0KUJo) now logs the exception id
with APS5_LOG_OUT and returns 0, as libkernel's
sceKernelDebugRaiseException does.
Palworld PPSA23126 (#2598) and 007 First Light PPSA11386 (#2523) import
it; neither is shown calling it.
OpenAGC 3c7e8072 (src/game_compat.c) returns 0 and says the function is
a no-op on retail hardware; the ud2 trap it describes for development
hardware is not reproduced. KytyPS5 6f0cddd4 (src/libs/agc.cpp) takes a
uint32 exception_id, logs it and returns 0. OpenAGC declares no
arguments, but a body that only traps reads none, so the uint32 is kept
and the conflict is recorded in TechnicalDebt. The aerolib name is from
zecoxao/sce_symbols 2883963a; ps5-payload-dev/sdk f5d40f02 has only an
untyped stub.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
image_sample_c_lz on gfx1035 returns 0 for 8-bit sRGB, so the unorm clamp was the wrong result. Bilinear cube comparison without DISABLE_CUBE_WRAP keeps throwing because that filter blends across faces.
Co-authored-by: Cursor <cursoragent@cursor.com>
sceAgcFuseShaderHalves returns a fused hull as a copy of its back half
(type 7) that is not registered: type 3, no user data, and shader
registers copied to scratch memory with the checksum, RSRC1/RSRC2 and
the LS program address rewritten. sceAgcCreatePrimState accepts only that
type-3 header, and graphics ABI resolution refused it as a replaced
shader header.
SameHeader now also takes a type-3 header as the registered type-7
header for the same code when every other field is equal and its shader
registers differ only in the fused ones. Graphics ABI resolution then
applies the bound header's shader registers over the registered state.
PPSA26344 fuses its hull halves during its loading screen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Subnautica Below Zero stops while compiling a menu shader that compares an sRGB color texture or a bilinear cube face. sRGB uses the unorm reference clamp, and a bilinear cube sample stays on the face it hits.
Written with AI assistance.
FreeBSD fchdir(2) changes the working directory to the directory referenced by a descriptor. The guest imports fchdir from libkernel_sys (PPSA99764, issue #1578) and the module did not export it.
The descriptor's directory is resolved from the path recorded when the directory was opened on Windows, and from the /proc/self/fd link target on Linux. The guest working directory is then set through the libc routine shared with chdir. A descriptor that is not open returns EBADF and one that is not a directory returns ENOTDIR.
AI-assisted: yes
(cherry picked from commit 76329cbb08781e13d757c3ff955acf71f8bd506f)
C17 7.21.6.2p16 returns EOF only if input fails before the first conversion completes, and a suppressed conversion completes. FreeBSD counts it in nconversions (vfscanf.c, releng/11.4, lines 799-805). The host scanf returned EOF there, so sscanf("12", "%*d%d", &v) reported EOF instead of 0. Each suppressed conversion now records its end with a %n and a result of EOF becomes 0 when one was recorded.
PSXS5, SwanStationPS5 and Nuvio stop at start-up on setcontext on main,
and EVO Player and ProsperoStore do on Windows. The three are imported
by the statically linked OpenSSL's ASYNC code.
The three use FreeBSD 11's amd64 ucontext_t (mcontext at 0x10, mc_len
800, uc_link at 0x330, 0x370 bytes), which the titles are built
against: EVO Player's ASYNC_is_capable captures into a 0x370-byte stack
buffer, and async_fibre_makecontext sets uc_link at 0x330 and uc_stack
at 0x338. getcontext saves every register at its call in assembly and
stores the context as FreeBSD's sys_getcontext does: rax and rdx as 0,
the carry flag clear, the FXSAVE image and the signal mask, and nothing
from uc_link on. setcontext checks mc_len and mc_flags as set_mcontext
does, installs the signal mask, masks MXCSR with the host's MXCSR_MASK
and returns through iretq, so every general register and the flags are
restored and nothing is written below the target stack pointer.
makecontext follows FreeBSD 11's amd64 libc.
Windows checks guard-page growth and exception unwinding against the
stack bounds in the TEB. setcontext and longjmp now set them to the
stack they switch to, which makecontext registers and pins writable as
libSceFiber does for fiber stacks. OpenSSL enters a context with
setcontext and then switches with _setjmp and _longjmp.
Titles that import it now load; calling it throws until push event
handles have operations that can be aborted.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
(cherry picked from commit f50cb08c988736d645f0cc1c329f911f732fa935)
(cherry picked from commit ae3227dbfa2c972b36242056df5971d858ac65c3)
(cherry picked from commit 3df66a6a5dd9f0cd73daaee1342c22742c1915e4)
The window was read from APS5_HOST_IMPORT_WINDOW_MIB on the device.
It is now always 8 MiB, the value the previous commit was measured
with; SetHostImportWindow stays for the tests. TechnicalDebt records
the window as a choice.
Titles that import it now load; calling it throws like the other
coredump queries, since host crashes are not turned into guest dumps.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
(cherry picked from commit e0e5fd9ffbbaffdc065d1471ce1c91b144af5f98)
(cherry picked from commit 2ac0c88fdbb9e380b6eb5a37d5f98d557940f131)
(cherry picked from commit 1279010b1bc123d3b87664ede15ec6ab2ced806a)
DecodeShaderStages accepts LS, HS and an NGG passthrough ES, reads the
3-bit VGT_TF_PARAM fields, refuses its other bits but DISTRIBUTION_MODE,
and needs HOS levels that keep [1, 63]; 0x286-0x287 join the draw key.
Local and domain programs are prepared with their stage group: its
headers are merged over one set of defaults, and a local program left
unbound by the hull header is prepared at its first draw.
The local program ends at its jump into the hull half.
TessellationLowering lowers LDS and ring addresses that are affine in
the control point and relative index to tessellation interfaces with
strides from the code, and refuses accesses outside the patch, per-patch
writes from other control points and a modified primitive export. Hull
lanes read their own saved exec bit, also of host-subgroup-masked
copies; other masks are refused, gl_InvocationID loads as a scalar and
factors clamp to 63.
Use unlocked POSIX EOF/error queries after unlocked byte operations so status synchronization cannot reacquire the stream lock. Keep the verified UCRT status calls on Windows, and cover byte, status, error, and held-lock behavior.
Co-authored-by: MarcZX100 <marczxrr@gmail.com>
agc_driver_dcc_keys_first_write only exercises the import window when the
device's own host import resolves the write protection of the imported
pages, as the NVIDIA driver does on Linux. CI's devices do not, so the
comparison that #2984 adds for BlockMaybeWritten units is not run there.
RunImportWindow opens an import window itself over a pending storage
image with GuestMemory::ImportWatched and stores the byte already there,
which leaves the same stamp without depending on the driver: the image
must stay pending and unchanged. A store of a new byte inside a window
must still be seen. Devices whose imports are compared print that the
window is not tested, as the recorder's (w) test does. Linux only: the
Windows path compares imports.
TechnicalDebt records that an identical-byte CPU store inside a window
cannot be told apart from the import, and that images tracked by layer
still upload again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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