Cesarus85--mjolnir-vr/docs/object_matching_logs/wcsxfrm_obj.md

wcsxfrm.obj exact-match log

Plain-English behavior

The Xbox CRT has no locale transformation here: if a destination is supplied, the source is copied with wcsncpy; the return value is always the source length from wcslen.

Reconstruction discipline

• January target: one 37-byte cdecl function and two exact REL32 relocations.
• The natural wrapper has one final return and one parameter per line.
• The already exact wcsncpy.obj and wcslen.obj establish both call targets; strict admission still requires relocation addresses and identities to match.
• No assembly, volatile, forced inlining, undefined behavior, or flag change.
• Hardened result: 37/37 bytes, two exact REL32 relocations at offsets 19 and 30, normalized SHA-256 002ff749799b2e79740fcfd2a6624dce6678f714ee64df4ae324be5903829f6a.

Independent current-campaign verification

The older completed candidate was treated as a lead, not as proof. It was transplanted onto campaign commit 4b1fc5f1, compiled afresh with XDK 3911 under libcmt's unchanged /O1 /Gy /I"xbox/include" command, and compared to the January split object with the hardened COFF comparator.

• _wcsxfrm: 37/37 bytes and 2/2 relocations.
• +0x13: IMAGE_REL_I386_REL32 to _wcsncpy + 0.
• +0x1E: IMAGE_REL_I386_REL32 to _wcslen + 0.
• The target owns no .rdata, .data, or .bss; the candidate adds none.
• Full Halo and libcmt builds, semantic progress, and the per-unit regression snapshot/check completed with zero failures or warnings.
• All 179 tooling tests passed.

House and Berth audit

The implementation is ordinary readable C: parameters are written one per line, the function has one final return, and its two calls use their recovered typed prototypes. It contains no assembly, volatile, __forceinline, alignment directive, magic structure offset, undefined behavior, byte patch, compiler substitution, flag change, or comparator exception. There is no original-game defect at this call-through wrapper that needs a bug/fix note.