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

sound_manager.obj Codex strict checkpoint

This Codex-owned ledger records a bounded recovery of four ordinary typed-C accessors in source/sound/sound_manager.obj. The unit remains NonMatching: most code and all initialized target-owned data are still open. No pre-existing or Claude-authored Markdown was edited or deleted.

Scope and provenance

• Integration base: 6fb0a3d8fe36294e2bb3d41ab23519f233cb1c8d.
• Source donor: Jonas commit 27e990f2530711cedf72869224e35cac4cade8b1; the accepted final source blob is 47aa47b569783ecfe2576a4191b633ea01e35b05.
• Only sound_manager.c and this new ledger are changed. There is no header, configuration, frozen-object, or existing-Markdown edit.

Hardened code delta

The untouched base had 2/65 strict exact functions totaling 7 meaningful bytes, 32 padded bytes, and one relocation. The forced rebuilt object has 6/65 strict exact functions totaling 77 meaningful bytes, 128 padded bytes, and six relocations. The gain is therefore four functions, 70 meaningful bytes, 96 padded bytes, and five relocations. Both baseline-exact functions remain exact.

Function	Meaningful bytes	Padded bytes	Relocations	Normalized SHA-256
_current_platform_definition	6	16	1	1e7169478a5de2d7d707c15b39f24ee5b545e536a2ea0f1383ec56294f9ee3bb
_sound_initialize_for_new_map	1	16	0	499f1f307c1cb989f968a6b7fcaec591e1828877223d0b0e7e8e8b76cde8c9ca
_sound_is_active	27	32	2	f896871358d7cd984ea1bc37e0165c6fc450fa28a462365c435113b76887a61b
_sound_render_time	6	16	1	1e7169478a5de2d7d707c15b39f24ee5b545e536a2ea0f1383ec56294f9ee3bb
_sound_enable	13	16	1	de8c4439b030245988663f8f08b89f6a3ab735129d5467f31f6d3f0bde83c561
_sound_manager_set_sound_environment	24	32	1	282617086834f30016ac51625c22893f88ed8f26281b4a6651fbbfa52d255715

Each target/candidate pair has identical normalized bytes, padded extent, relocation addresses/types/destinations, and one unique external function symbol with matching type and storage class. No semantic exception or parked entry is needed.

BSS layout and data ownership

The source refines the previously opaque sound_manager_globals layout just enough to name the fields proved by the target accesses: initialized at +0x000, enabled at +0x001, platform_definition at +0x008, render_time at +0x00C, and the 0x48-byte sound_environment at +0x128. A compile-time assertion holds the aggregate at 0x178 bytes.

The candidate continues to emit exactly one common BSS owner named _bss_004d2d60, with value/size 376, external storage class 2, type 0, and no payload or relocations. This symbol inventory is identical to the untouched baseline candidate. The field refinement adds no .data, .rdata, or BSS subowner, and all six exact functions resolve their global relocations to the proper offsets of that owner. The target's 3,952 total non-code bytes remain uncredited for this incomplete unit.

Source quality and configuration

The retained bodies are readable typed C. They use a forward-declared opaque platform type and the existing typed sound-environment definition; there is no raw object/tag cast or byte-offset access. No assembly, volatile scheduling device, force-inline annotation, optimizer pragma/barrier, undefined type-punning, alignment control, or byte-forcing construct is present. No-argument definitions spell void, each parameter is on its own line, and both recovered void functions end with explicit return;.

source/sound/sound_manager remains NonMatching, with no admission claim.

Reproducibility and gates

• Target object SHA-256: 5942253e0f66d9bc8b7927767b20c747de07b6159a05b21e2dc8eaffe859d729.
• Rebuilt object SHA-256: e0cb770ca5b764482b2c9fc318fa08a4a822201318d26db68cfb65409bb2a654.
• sound_manager.c SHA-256: efda30ed49fd7881713053ceab388cfe9f82a7379811c3a9f2b77c0e315c060.
• Full Halo and libcmt build graphs pass.
• Semantic audit: 470 units, 3,859 functions evaluated, 3,719 semantic exact, 3,783 accepted exact, and zero unit errors.
• Campaign progress: 375/833 complete objects, 3,772/11,060 exact functions, 460,556/2,198,102 exact code bytes, and 1,803,160/4,176,062 matched data bytes.
• Admission audit: zero candidates and zero revocations; only the inherited source/shell/shell_xbox contradiction remains.
• Parked audit: three active, zero stale, and zero invalid.
• Tool suite: 179/179 tests pass.
• A clean post-commit snapshot and forced-object regression check are recorded in build/regression_manifest_sound_manager_final.json.

The five user-frozen large objects (vehicles, ai_debug, ai_script, actions, and units) are untouched. No tracked file is deleted, and no Claude-authored Markdown is changed.