The deadline was built as seconds plus nanoseconds, a nanosecond duration,
and converted implicitly to a system_clock time point. Where system_clock
counts microseconds, as on macOS, that conversion is lossy and does not
compile, so libc did not build there.
The seconds now stay in the clock's unit and only the nanoseconds are
rounded up to it, so the wait never ends before the requested time. With
a nanosecond system_clock nothing changes. Converting the nanosecond sum
instead would compile but overflow above 2^63 nanoseconds, which the
clock range check above allows on macOS: a 10^10 second deadline then
wraps into the past and the wait times out at once.
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
Deathloop (PPSA01670), Minecraft Legends (PPSA05510) and GTA III
Definitive Edition import both from libSceAmpr. They take a pointer to
the handle slot and act on the conditions created by the libc _Cnd_init:
_Cnd_signal wakes one waiter through a libc helper, _Cnd_init_with_name
is _Cnd_init with the name ignored. _Thrd_id still throws.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
David