Main's #10706 moves the declarations of exported functions and their types
into the libraries' public headers, and gives WaitForPendingInSet a
KernelTimespec timeout. The merge keeps this branch's DeliverUnblockedPending
and ChangeBlockedMask with main's KernelTimespec. It takes main's side of
the declarations in GuestSignalSets.cpp, whose setjmp and longjmp this
branch had added and libc's Api.hpp now declares. GuestSignalHandlerMask.cpp
includes the libkernel and libc public headers in place of its own
declarations and GuestSignalSet and GuestSigaction types, as the
public_headers audit requires.
Implement iswascii in libc, checking whether a wide character falls within the 7-bit ASCII range (0x00 to 0x7F). Add unit test coverage in GuestRuneLocale.
asctime_s and sceAmprAsctimeS added 1900 to tm_year in int before the range check, so a tm_year near INT_MAX overflowed: UndefinedBehaviorSanitizer reports signed integer overflow at SonyCrt.hpp:91. The year is now computed in 64 bits; the result stays EINVAL with an empty buffer for any year outside 0 to 9999.
A traced run that ends without a crash or an abort never reports which
imports it called. With APS5_TRACE_CALLS_FILE set, the first traced import
starts a thread that rewrites that file every 10 seconds with every import
called so far, most called first.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
fstat, _fstat, sceKernelFstat, stat, lstat, sceKernelStat and _fstatfs
filled the caller's struct in place, or copied into it after a check that
only tests for null, so a pointer into unmapped memory crashed the host.
Fill a local struct and copy it out with a checked write that fails with
EFAULT. FreeBSD 11.4 does the same after the lookup has succeeded:
copyout(&ub, uap->sb) in sys_fstat (sys/kern/kern_descrip.c:1328),
copyout(&sb, uap->ub) in sys_stat (sys/kern/vfs_syscalls.c:2066) and
copyout(sfp, uap->buf) in sys_fstatfs (sys/kern/vfs_syscalls.c:337).
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
The printf family formatted floating-point conversions through the host,
which prints every exact digit and rounds ties to even. The libc.prx
that titles ship keeps the exact digits only down to a position derived
from the binary exponent and prints zeros after them, rounds half up on
the kept digits, and rounds an exact tie down once that exponent
estimate reaches 8. So %.0f of 2.5 is 3 and %.1f of 0.25 is 0.3 there,
and %.20f of 0.1 is 0.10000000000000000555.
Format finite double and long double e, f and g conversions with those
rules from exactly generated digits, on every host. On 600,000 random
formats every output with up to 17 significant digits now matches the
copies bundled with PPSA07923, PPSA05916 and PPSA13934; longer outputs
still differ where the console's extended-precision digits end one unit
lower.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Windows printf family handed %a and %A to the host, whose UCRT prints
a subnormal unnormalised (0x0.0000000000001p-1022) and pads with zeros
even when the - flag is given (%-010a of 1.5 gave 0x001.8p+0). The
libc.prx that titles ship normalises subnormals (0x1p-1074), rounds a
shorter precision half up without renormalising a carry, and lets -
override 0, as C requires.
Finite doubles are now formatted here, checked against three titles'
copies of libc.prx run side by side.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Dean