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

damage.obj Codex checkpoint

This Codex-owned ledger records a bounded, source-only recovery in source/objects/damage.obj. The unit remains NonMatching: 19 of its 34 functions and all target-owned data remain open. No pre-existing or Claude-authored Markdown was edited or deleted.

Scope and provenance

• Integration base: 6fb0a3d8fe36294e2bb3d41ab23519f233cb1c8d.
• Historical donor: 6d90e8e9aec1cce8bc127a3cfd3a853760303acd.
• Donor damage.c blob: 138e904acf7a14457edc6d2145301a3975a10a63.
• The retained delta is exactly the two public, already-declared vitality helpers. No header, data declaration, configuration, semantic ledger, or park changed, and no nonexact donor work was retained.
• The user-frozen vehicles, ai_debug, ai_script, actions, and units objects are outside this lane and untouched.

Strict code result

The untouched base measured 13/34 exact functions and 507 meaningful code bytes. The candidate measures 15/34 and 675 meaningful code bytes: a strict gain of two functions and 168 bytes. Both functions are ordinary objdiff exact and independently semantic-COFF exact; no exception ledger is used.

Exact function	Meaningful	Padded	Relocations	Normalized SHA-256
_object_get_actual_body_vitality	84	96	3	4514a53371a45877cdabddb820056af0bc444119fb22d42240ec94ab6444c47d
_object_get_actual_shield_vitality	84	96	3	79186eac1d5a4f2fe306a73f7e19bc581d669130661c0d7f0661fcfa44d0b1bc

Each function has the target's three relocation identities and addresses: two calls to _object_get_and_verify_type and one call to _game_difficulty_get_team_value. All 13 functions accepted at the base remain ordinary and semantic exact.

Data, symbols, and regression boundary

No source-owned data was added or changed, and this checkpoint claims no data credit. The target's 760 non-code bytes comprise 76 bytes of BSS and 684 bytes of RDATA and remain open.

A clean fail-closed whole-TU snapshot was captured from the authoritative base before the source change. The candidate comparison identifies exactly the two helpers as NEWLY_EXACT; no previously nonexact function changed. Adding two code sections necessarily expands the rebuilt COFF symbol table and changes compiler section-number fingerprints for six already-exact relocation-bearing functions and the shared 1.0f constant COMDAT. Those raw ownership deltas are not suppressed or credited as data. Ordinary objdiff and independent semantic comparison confirm that all 13 pre-existing exact functions remain exact. A clean post-commit snapshot and forced rebuild are used as the reproducibility baseline for the resulting 15-function state.

Source quality and gates

The retained implementation is readable typed C. It uses no assembly, volatile scheduling device, forced inline, optimizer pragma/barrier, undefined type-punning, byte forcing, or raw layout cast. Parameters follow the one-per-line convention.

The full Halo and libcmt build graphs pass. Semantic audit reports 470 units, 3,857 functions evaluated, 3,717 semantic exact, 3,781 accepted exact, and zero unit errors. Campaign progress is 375/833 complete objects, 3,770/11,060 exact functions, 460,654/2,198,102 exact code bytes, and 1,803,160/4,176,062 matched data bytes. Halo progress is 273/468 objects, 3,603/7,574 functions, 447,740/1,770,166 code bytes, and 1,797,968/3,923,451 data bytes.

Admission reports zero candidates and zero revocations, with only the inherited source/shell/shell_xbox contradiction. Park validation reports three active, zero stale, and zero invalid. The complete tooling suite passes 179/179 tests.

The unit remains NonMatching; no GitHub push is performed.