Follow FreeBSD 11.4's sys_kldsym: EFAULT for an unreadable lookup
structure, EINVAL for a wrong version or command, EFAULT or
ENAMETOOLONG for the symbol name, ENOENT for a negative file id. Any
other lookup throws, as no kernel module is modelled. Adds
GuestCopyIn_nid_no_patch for the checked structure read.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
The host sinh set errno to ERANGE on overflow and sinhf does, but the msun port
returned the overflowed value with errno untouched. The overflow path of
sinh_nid_postfix sets ERANGE again; msun itself sets no errno.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
The I/J reads take the BaryCoordSmooth input, but gl_FragCoord was declared
only for the offset kinds, so its w was read as the constant 0 and the
fragment function never read [[position]]; Apple GPUs then return the
weights unnormalized. Declare it with the built-in, and select on
gl_FragCoord.w > 0, which a compiler cannot fold as it can
min(b, b + |w|).
MoltenVK exposes VK_KHR_fragment_shader_barycentric but its MSL step
rejects PerVertexKHR, so the extension is disabled there and a pixel
shader whose I/J VGPRs outlive their v_interp_p1/p2 pairs takes the
generated barycentric stages, which accept only triangle lists without
primitive restart on a device without geometry shaders.
A new target flag, fragmentBarycentricBuiltins, enables the extension
for its built-ins only. The host interpolation check then keeps the
leftover I/J reads (all perspective or all linear, at the fragment's
default position) and reads them from BaryCoordKHR or
BaryCoordNoPerspKHR, while the interpolated attributes stay hardware
varyings. Raw vertex parameters and I/J at an offset or a sample
position still take the generated stages. Apple GPUs return
unnormalized perspective weights unless the fragment function reads
[[position]], so each perspective read keeps a neutral use of
gl_FragCoord.w, loaded as a float. Devices with the full extension are
unaffected; the request serialization moves to version 45.
Co-authored-by: yripper <[email protected]>
asinh_nid_postfix called the host libm's asinh. It now follows the branches and
thresholds of FreeBSD msun's s_asinh.c (release/11.4.0): below 2^-28 it returns x,
up to |x| = 2 it uses log1p, up to 2^28 log(2|x| + 1/(sqrt(x*x+1)+|x|)) and above
that log(|x|) + ln2. Up to |x| = 2 the results are bit-identical to msun; above 2
they depend on the host log this file still uses.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Keep #9694's coverage check for targets without CMASK or DCC keys and skip it only for a fast-clear eliminate over a CMASK target without DCC keys.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
sigreturn applies FreeBSD 11's amd64 sys_sigreturn checks:
- EFAULT for a null context;
- EINVAL for unknown mc_flags, and for rflags bits outside
PSL_USERCHANGE that differ from the current flags;
- set_fpcontext's FPU format and ownership cases.
It then restores the context through the path setcontext uses, which
now lives in RestoreContext. A non-user %cs and an extended FPU state
still throw.
