AnyPS5/core/libs/prx/libSceLibcInternal
David 1d67426ede feat(libSceLibcInternal): implement getopt and getopt_long
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)
2026-10-12 18:46:43 +00:00
..
CMakeLists.txt feat(libSceLibcInternal): implement getopt and getopt_long 2026-10-12 18:46:43 +00:00
Export.cpp feat(libSceLibcInternal): implement getprogname 2026-10-11 04:22:28 -04:00
FileTime.cpp fix(libSceLibcInternal): preserve errno after successful utime 2026-10-10 14:42:35 -04:00
FilesystemStatistics.cpp feat(libc): implement guest fstatvfs volume statistics 2026-10-11 15:57:20 +02:00
Getopt.cpp feat(libSceLibcInternal): implement getopt and getopt_long 2026-10-12 18:46:43 +00:00
UserContext.cpp feat(libkernel): implement getcontext, setcontext and makecontext 2026-10-11 13:00:38 +03:00