[MarcZX10]

What

Adds the missing wcsftime export for PS5MC (NID XbVXpf5WF28) using the guest's 16-bit wide strings and the existing C-locale conversion routines. The implementation follows FreeBSD 11.4 behavior for conversion errors, empty/truncated output, overflow, and null arguments, including restoring errno around Windows CRT strftime behavior. Adds regression coverage to guest_wide_formatting and records the source behavior in docs/dev/debt/libc.md. The original implementation commit author is preserved.

Tested

• A prior Linux rebase handoff reported a full suite pass; that result was not run on this current-main head.
• The current-main rebase has not been built or tested locally. CI should rerun against this head.

Checklist

• Rebased onto current main; no matching open PR
• One topic: the wcsftime export and its tests/documentation
• Kept the existing strftime technical-debt entry
• Removed the duplicate kern.arandom line while preserving the existing entry
• Depends on: none
• AI-assisted: yes

[MarcZX10]

Carried #3625’s ready commit onto current main; the author is preserved. Local conventions and diff checks pass, but Linux CMake configure is blocked here by the missing SDL2 submodule contents and audio development headers, so the PR body records the original Windows test results and local limitation.

[github-actions]

Progress report (9ba9ac1 → 78ffdf0)

➖ System libraries: 87.85% (+0.0%, +1 implemented functions)

✅ 1 implemented

Library	Name
libc	wcsftime_nid_postfix

[blawesom]

Rebase handoff — rebased onto current main, authorship unchanged (only a TechnicalDebt.md union conflict; both entries kept).

Verified on Linux (CachyOS, kernel 7.2.9, GCC 16.2.1, Ninja, Release, BUILD_TESTING=ON, AMD RX 9070 XT / RADV):

• builds; tools/check_conventions.py --base origin/main passes
• full suite: 100% passed

To pick it up:

git fetch https://github.com/blawesom/AnyPS5 rebase/4226
git checkout <your branch>
git merge --ff-only FETCH_HEAD

[oneandonlydean]

Needs a rebase (docs/dev/debt/libc.md, docs/dev/debt/libkernel.md). While there: keep the strftime entry in docs/dev/debt/libc.md, and drop the second kern.arandom line the branch adds to docs/dev/debt/libkernel.md.

[MarcZX10]

Thanks. The current PR head still conflicts with main. I will rebase it, keep the existing strftime debt entry, and remove the duplicate kern.arandom line before asking for review again.

[MarcZX10]

Rebased the PR onto current main. I kept the existing strftime debt entry, added the wcsftime entry beside it, and removed the duplicate kern.arandom line by preserving the current-main entry. I updated the description so the earlier full-suite report is not presented as a test of this rebased head; CI should rerun.

[github-actions]

Other open pull requests touch the same code. Merging one will break the other, or both implement the same thing. If this one builds on them, list them in Depends on.

Pull request	Conflicting files (lines on main)	Same exports	Same new files
#4543	docs/dev/debt/libc.md L57
#4833	core/libs/tests/GuestWideFormatting.cpp L2