feof_unlocked, ferror_unlocked, getc_unlocked and putc_unlocked are macros
on macOS, so they are called without the global scope qualifier. The
remaining differences are the ones Darwin's headers and libSystem have:
- CLOCK_REALTIME_COARSE and st_mtim do not exist; the write mark uses
CLOCK_REALTIME and st_mtimespec.
- tm_zone is a non-const char*.
- __cxa_thread_atexit returns void, so the wrapper reports success.
- Darwin's stack protector reads __stack_chk_guard from libSystem; the
guard of the guest libc has the postfixed name, which receives the NID
of the original.
- APS5_EXPORT spells the symbols with the leading underscore of Mach-O.
- GuestArenaSetProtection and PosixProtection are built on macOS as on Linux.
- The fclose failure test fills /dev/full, which exists on Linux only.
exception_runtime relies on the Itanium unwinder of libc, which is not
registered on macOS (the host libc++abi is used), so its test is only
registered elsewhere.
PPSA21564 and PPSA21567 import std::_Fiopen (NID vYWK2Pz8vGE), the only libc
NID the host libc lacks. Without it the executable fails to load against
the host libc when the title's own libc.prx is left out of the guest
conversion, which is how the Linux runs of PPSA21564 avoid the libc.prx
binding crash. The values of the open mode and the meaning of the
protection argument are unknown, so the export throws when called; it was
never called in a 300 s run of PPSA21567.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_014A3UgWDUxE1EeHyVZm6tiN
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