Export getopt (VUtibKJCt1o) and getopt_long (8VVXJxB5nlk) from
libSceLibcInternal together with the guest variables optind
(zCnSJWp-Qj8), optarg (zG0BNJOZdm4), opterr (yaFXXViLWPw), optopt
(FwzVaZ8Vnus) and optreset (CZNm+oNmB-I). The NIDs were computed with
tools/nid_names.py and all seven are in aerolib; the PS5 payload SDK
f5d40f02 lists the functions and the five objects in
sce_stubs/libSceLibcInternal.c.
Titles (predicted stops from registry order, not observed runs):
- XPSemu PPSA97358, after execv/execve, the signal waits, the
credential setters, mlockall and tcsendbreak:
"FAIL: unresolved ELF import VUtibKJCt1o from libSceLibcInternal.prx"
(getopt idx 204, 10 call sites from 0xF6C23D), then optind (207),
optreset (208), optarg (209).
- RetroArch PPSA99169: getopt_long (idx 554, call sites 0xD2FC0C,
0xD3002A), optind (553), optarg (555).
Behaviour follows FreeBSD release/11.4.0 8c639945: getopt is
lib/libc/stdlib/getopt.c (no permutation, GNU "::" optional argument,
lone "-" as an option when listed), getopt_long is getopt_internal
from lib/libc/stdlib/getopt_long.c with GNU_COMPATIBLE (permutation,
POSIXLY_CORRECT read through the guest getenv on the first call and on
optreset, "+" and "-" prefixes, "W;", optind 0 as a reset, abbreviation
and ambiguity rules and the GNU warning texts). Warnings are written to
the guest stderr stream as "<__progname>: <message>", as warnx does.
The struct option layout and argument kinds are include/getopt.h.
The code lives in libSceLibcInternal because __progname is a libkernel
export that libc cannot link.
A null getopt option string, a null argument vector or argument, a
negative optind and an optind moved inside a pending permutation throw
where FreeBSD faults. getopt_long_only is not exported.
guest_getopt runs the FreeBSD getopt_test cases (contrib/netbsd-tests
t_getopt.sh with the h_getopt and h_getopt_long result format) plus
grouped and optional arguments, "--", permutation order, "+" and "-"
prefixes, optreset and optind 0 restarts, POSIXLY_CORRECT, all three
long argument kinds, abbreviations, ambiguity, flag pointers, "W;",
optopt with opterr 0 and the exact stderr text.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit a2740166d93920c301e1add23ceea762b4acad27)
sceKernelGetModuleInfoFromAddr has a Windows path since 77ef75c1d, so
_sceLibcInternalForceTlsDestructor finds each dso's module there too.
The test takes the other module's address with GetProcAddress where
Linux uses dlsym(RTLD_NEXT), and the TechnicalDebt entry no longer says
the call throws on Windows.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
PSXS5, SwanStationPS5 and Nuvio stop at start-up on setcontext on main,
and EVO Player and ProsperoStore do on Windows. The three are imported
by the statically linked OpenSSL's ASYNC code.
The three use FreeBSD 11's amd64 ucontext_t (mcontext at 0x10, mc_len
800, uc_link at 0x330, 0x370 bytes), which the titles are built
against: EVO Player's ASYNC_is_capable captures into a 0x370-byte stack
buffer, and async_fibre_makecontext sets uc_link at 0x330 and uc_stack
at 0x338. getcontext saves every register at its call in assembly and
stores the context as FreeBSD's sys_getcontext does: rax and rdx as 0,
the carry flag clear, the FXSAVE image and the signal mask, and nothing
from uc_link on. setcontext checks mc_len and mc_flags as set_mcontext
does, installs the signal mask, masks MXCSR with the host's MXCSR_MASK
and returns through iretq, so every general register and the flags are
restored and nothing is written below the target stack pointer.
makecontext follows FreeBSD 11's amd64 libc.
Windows checks guard-page growth and exception unwinding against the
stack bounds in the TEB. setcontext and longjmp now set them to the
stack they switch to, which makecontext registers and pins writable as
libSceFiber does for fiber stacks. OpenSSL enters a context with
setcontext and then switches with _setjmp and _longjmp.
RetroArch (PPSA99169) stops at alarm on main: `FAIL: unresolved ELF import DQXJraCc1rA from libSceLibcInternal.prx`.
alarm(seconds) arms one process-wide real-time alarm and returns the seconds left on the previous one, rounded up like FreeBSD's alarm.c (any partial second counts); alarm(0) cancels it. When it expires, SIGALRM's disposition as recorded by sigaction or signal applies: ignored, nothing happens; default, the process terminates as on FreeBSD (exit status 128 + 14); a guest handler throws, because asynchronous delivery to a guest handler is not implemented.
The timer lives in libkernel next to the signal dispositions (GuestAlarm_nid_no_patch); libSceLibcInternal, which the titles import alarm from, forwards to it.
AI-assisted (Claude Code).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
AI-assisted: yes. Restore guest errno only on successful utimes forwarding and retain delegated failure errors. Register the controlled-backend regression test. Windows library build and focused tests pass; Linux rerun pending.
Use dlsym to avoid identifying the executable PLT entry as the shared-library function in non-PIE builds. Fedora 44 Release guest_force_tls_destructor passes. Written with AI assistance.
Every library CMakeLists.txt ended with the same block removing -static,
-static-libgcc and -static-libstdc++ from CMAKE_EXE_LINKER_FLAGS on MinGW,
because core/libs/CMakeLists.txt only removed them after adding the library
directories. Remove them before the libc and library directories are added
so each directory inherits the stripped flags, and drop the 52 copies.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017pTZqAyVSZy2FZmaqakPHZ
A title's own libc.prx implements __cxa_thread_atexit and the
destructor pass of exit() through _sceLibcInternalThreadAtexit and
_sceLibcInternalThreadDtors. Its __cxa_finalize calls
_sceLibcInternalForceTlsDestructor.
Destructors are kept per thread and run newest first, including those
registered while they run, as FreeBSD's __cxa_thread_call_dtors does.
A null destructor or one outside every loaded image throws instead of
being skipped. The first registration installs the pass as the
libkernel thread exit hook, so it runs on every guest thread before
the thread can be joined. _sceLibcInternalForceTlsDestructor throws.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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