chimera-gfx-Public/docs/evidence/phase0-build-2026-07-17.md

Phase-0 and offline Phase-1 build evidence

• Date: 2026-07-17
• Source commit: 72292f2d5788ad643e9d1816ce28ab754ef739b5
• Branch: main
• Firmware gate: NONE
• Hardware transfer/execution: not performed

The source tree was clean when the two artifacts below were rebuilt. Generated build directories and ELFs are ignored; only their machine-readable manifests are tracked.

Host verification

Environment	Result
Windows, Visual Studio 2022 x64 Debug	11/11 CTest tests passed
Windows, Visual Studio 2022 x64 Release	11/11 CTest tests passed
WSL, Clang 18.1.8, clang-tidy 18, warnings as errors	12/12 CTest tests passed
WSL, GCC 15.2.0, ASan + UBSan	12/12 CTest tests passed
Installed core library consumer	compiled and exited 0
Installed RetroArch/SDL2 scaffold consumer	compiled and exited 0

The tests include API/error/lifecycle validation, cross-context ownership, resource limits, deterministic mock upload/present state, adapter refusal, firmware-gate negative cases, symbol-manifest generation, artifact-manifest tamper rejection, format, safety policy, and secret scanning.

The Clang ASan/UBSan variant was attempted but could not link because this WSL installation lacks Clang 18's compiler-rt ASan archives. That attempt is not counted as a passed test. The available GCC sanitizer runtime completed the same 12-test suite successfully.

Docker was not installed in the local environment, so the pinned Dockerfile was reviewed but not built. Its host and Phase-0 cross-build commands were run directly with the same pinned compiler/SDK inputs. No Gitea job is claimed as passed merely from being queued.

Cross-build verification

The clean PS5 compile used:

• PS5 Payload SDK v0.41, commit d2e2e585740362976a39fdd5ccf390f199a7bc37;
• PS5 SDL2 commit 0baf4ac49382b537ba449901b5b6d0d189bb1fbb;
• the single reviewed keyboard/IME-removal overlay;
• SDL2main, audio, joystick, haptic, sensor, power, file, filesystem, locale, misc, OpenGL, LoadSO, render, Vulkan, dummy/offscreen video, and HIDAPI disabled for the Phase-1 candidate;
• warnings as errors and firmware identifier NONE.

All core, adapter, firmware-gate, probe, and disabled Phase-1 targets compiled and linked. Static prospero-nm inspection then passed the strict import audit.

Artifact	Size	SHA-256	Static result
chimera-gfx-capability-probe.elf	110424	f0f74978ac62490ff2482386e9c4efa3ad6d6cc46e10d54c41cb8669b4449f36	0 direct Sce imports; 0 GNM imports
chimera-gfx-phase1-videoout-clear.elf	1566368	2e826ac4ea2bffb626d82e370f98909bb508417d92b1ac3796e9f5a902e975c9	exact reviewed 15-name Sce set; 0 GNM/keyboard/IME/UserService imports

The 15 Phase-1 imports are six direct-memory/equeue functions, one SystemService function, and eight VideoOut functions listed in docs/phase1/VIDEOOUT_CLEAR_EXPERIMENT.md.

llvm-objdump-18 confirmed the retained control-flow order in the Phase-1 main: firmware gate at offset 0x78, SDL_SetMainReady at 0xa9, SDL_Init at 0xb4, and the sole SDL_UpdateWindowSurface at 0x1fc. The probe likewise reaches its firmware gate before loader construction and probe logic. With embedded identifier NONE, both return before the later calls.

The corresponding tracked manifests are:

• manifests/artifacts/chimera-gfx-capability-probe-0.1.0-none.json;
• manifests/artifacts/chimera-gfx-phase1-videoout-clear-0.1.0-none.json.

Both manifests verify against the local bytes and state authorized: false, transferred: false, and executed: false.