setlocale returned a null pointer for a category outside 0 to 6 and
accepted "POSIX" as a name for "C". The libc.prx that titles ship
ignores the category, so setlocale(-1, NULL) and setlocale(7, "C")
return "C", and returns a null pointer for "POSIX" as for any name other
than "C" or the empty string.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
cbrtf returned the host cbrt, so its result depended on the host: on
Windows it differs from the libc.prx that titles ship on 1,303,357,444 of
the 2^32 floats. That libc.prx is msun's s_cbrtf.c, which gives the same
bits as PPSA07923's, PPSA05916's and PPSA13934's copies for every argument.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
They returned the host sin, cos and tan, so their last bit and errno
depended on the host: on Windows sinf differs from the libc.prx that titles
ship on 3,349,410 of the 2^32 floats, cosf on 3,382,210 and tanf on
303,874,018. That libc.prx is msun's s_sinf.c, s_cosf.c and s_tanf.c over
the double-precision kernels and e_rem_pio2f.c with k_rem_pio2.c; its
sincosf returns the same pair, and only an infinite argument sets EDOM.
The ports give the same bits and errno as PPSA07923's, PPSA05916's and
PPSA13934's copies for every argument.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
logf returned the host log, so its last bit and errno depended on the host:
on Windows the bits differ from the libc.prx that titles ship on 13,225,175
of the 2^32 floats. That libc.prx is msun's e_logf.c, setting ERANGE for
+-0 and EDOM for every argument with the sign bit set. The port gives the
same bits and errno as PPSA07923's and PPSA05916's copies for every
argument; the FMA-contracted copy of PPSA13934 differs by 1 ulp on 961,881.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
atanf returned the host atan, so its last bit depended on the host: on
Windows it differs from the libc.prx that titles ship on 6,481,820 of the
2^32 floats. That libc.prx is msun's s_atanf.c, which gives the same bits
as PPSA07923's, PPSA05916's and PPSA13934's copies for every argument.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The fgetws in the libc.prx that titles ship (the same 133 bytes in the
copies of PPSA13934, PPSA07923 and PPSA05916, read from disassembly)
differs from this one in two cases:
- A size below 2 returns null at once, without writing the buffer,
errno or the stream (cmp $0x2,%esi; jge, else the null result). Here a
size of 1 stored a NUL and returned the buffer, and a size of 0 or less
set the stream error and errno 22.
- When fgetwc returns -1 after characters were stored, the console
null-terminates and returns the buffer; it returns null only when
nothing was stored, and never checks ferror. Here a read error after
some characters returned null.
The rest already matches: each fgetwc result is stored as its low 16 bits
(mov %ax,(%rbx)), and the newline test compares all 32 bits. A null buffer
or stream, which the console dereferences, keeps failing with errno 22.
guest_standard_streams now expects the console results for sizes 1, 0
and -1 and for an invalid byte after a stored character; its fgetwc error
indicator check is unchanged. The libc debt entry cites the reading and
what it leaves unverified.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
strtof and wcstof now set ERANGE for a decimal input whose nonzero
subnormal result is inexact, never for a hexadecimal nonzero subnormal,
and keep it for underflow to zero and overflow. This is what the libc.prx
bundled with PPSA08427 (J03547016) and PPSA03671 (J03848509) do when run
side by side with this libc. The earlier commit followed
libSceLibcInternal's _Stof, which leaves errno alone for hexadecimal under-
and overflow, but titles import these NIDs from their own libc.prx.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01RbLgECLQ2bpDM7oe2urGZK
The trap checks unmask exceptions with feenableexcept and its relatives
and expect MXCSR to hold the new masks, and the enable and disable
results to report the traps enabled on both units. Under Rosetta 2
MXCSR keeps its six exception masks set, so no SSE trap is ever enabled
and every result reports none. The test now asks the host once whether
it keeps an unmasked MXCSR exception and, where it does not, expects
all six SSE masks set and no trap on both units; on other hosts the
expectations are the same as before. A debt entry records that the
trap functions change only the x87 masks under Rosetta.
Under Rosetta 2 the six MXCSR exception masks always read back set: a
write that unmasks an SSE exception is not kept, while the x87 masks and
the other MXCSR bits are. guest_floating_point unmasked the overflow
exception on both units and then expected MXCSR to equal the value it
wrote, so it failed on macOS although fesetexceptflag and feclearexcept
left the masks alone. The test now compares with the environment read
back after the write, which on other hosts is the value written. The
debt entry for the floating-point functions notes the Rosetta behaviour.
mazen320 mapped the relocated slots of KfcTPbeaOqg in the console's
libSceLibcInternal: offset-to-top, typeinfo, the two destructors,
locale::facet::_Incref and _Decref, and the eleven do_get. The debt
entry now says so instead of leaving the two extra entries unknown.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
mazen320 read KfcTPbeaOqg from the console's libSceLibcInternal.sprx
symbol table: an object of 136 bytes, 17 pointer slots. Export that
size instead of the 15 derived from Dinkumware's crt.vc12 xlocnum, and
say in the debt entry that which two virtual functions are added is
not known.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Resolves the conflict with #8867 in EntryStubTests.cpp: keep its two
kernel-variant tests and the BufferUtils include, and this branch's
libSceAmpr-to-libc fallback test, with all three called from main.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
