Publish Chimera GFX source

2026-09-03 03:27:14 +02:00
commit a6037502d7
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+# Phase 1.0R: SDL2main and packaging analysis
+
+Status: `SOURCE_BOUND_NEGATIVE_RESULT`
+
+## SDL2main
+
+Pinned source: `ps5-payload-dev/SDL` commit
+`0baf4ac49382b537ba449901b5b6d0d189bb1fbb`, file
+`src/main/ps5/SDL_ps5_main.c`, 438 bytes, SHA-256
+`55953065bb81ec6f00224d54c19f667336936e55a6805e08b60f6dda126d6648`.
+
+| Source location | Operation | Timing | Launch-context conclusion |
+|---|---|---|---|
+| lines 14-16 | normal `main`, splash hide | before `SDL_main` | duplicate of an action also performed by PS5 `VideoInit`; no registration |
+| line 17 | call `SDL_main(argc, argv)` | application entry | C entry-wrapper convention only |
+| line 18 | `sceSystemServiceLoadExec("exit", 0)` | after application return | cannot affect first VideoOut submit |
+
+No application ID, title ID, LNC function, process creation, VideoOut export,
+module load, or persistent state appears in this file.
+
+Pinned PS5 video source: `src/video/ps5/SDL_ps5video.c`, 12,162 bytes,
+SHA-256
+`44124546da132ea6e12b1f06a1808d61690c73460a65c3161e8453e8108684b6`.
+`PS5_VideoInit()` hides the splash at line 225 and opens VideoOut at line 226.
+It creates the event queue, adds the flip event, sets the flip rate, sets the
+opaque buffer attributes, and registers buffers. The update path submits
+`(handle, idx, 1, frame_id)` at line 145. No source-proven app registration or
+flip-owner acquisition precedes it.
+
+## Exact RetroArch linkage
+
+The artifact source is RetroArch commit
+`12cf1d783c41eb303987e49a5a920805a59ef7a4`. `Makefile.ps5` is 16,122 bytes,
+SHA-256
+`6d248aa2b77d5ccea3a8d1de02e939946b7e7764e5b012ef513c1eed4dcc6e27`.
+It links static `libSDL2.a` plus `SceSystemService`; it does not link
+`libSDL2main.a`.
+
+The exact M evidence identities remain:
+
+| Evidence | Size | SHA-256 |
+|---|---:|---|
+| `retroarch_ps5_write_diag.elf` | 1,845,208 | `c99a0856309a357ad2667d89b4924e4063ad214cae09c8a419457b0732f583cd` |
+| linker map | 637,728 | `6768ffc7267b9b362c3b953571e5dfeed1e70004a3e19f41ef500c3f26272719` |
+
+The map binds `_start` to SDK `crt1.o` and binds the PS5 video functions to
+`libSDL2.a(SDL_ps5video.c.o)`. Searches for `SDL_ps5_main`, `libSDL2main`, and
+`sceSystemServiceLoadExec` are empty. Thus the tested artifact omitted the
+wrapper but not SDL's pre-VideoOut splash-hide call.
+
+## PacBrew and official port packaging
+
+PacBrew commit `c2abcfcb60f569128abd0e8e70ad03a67bee5ea7` builds and installs
+libraries and ordinary executables. Its SDL2 recipe fetches the same SDL fork
+without a pinned source checksum and installs the resulting SDK files.
+PacBrew recipes do not create PS5 application IDs or define the process that
+runs an installed executable. PacBrew is therefore `PACKAGE_METADATA_ONLY`,
+not a launch-context implementation.
+
+The bounded official source set gives these results:
+
+| Project | Relevant observation | Classification |
+|---|---|---|
+| LakeSnes | links SDL2main; `homebrew.js` returns path/args; README uses `hbldr` via shsrv | `SDL2MAIN_USER_LAUNCHER_PARTIAL_UNBOUND` |
+| pemu | PS5 packages use `homebrew.js`; its explicit `LoadExec("exit")` is guarded for PS4 only | `SDL_USER_LAUNCHER_PARTIAL_UNBOUND` |
+| FBNeo, Mednafen, DevilutionX, EDuke32 | PacBrew builds/install ordinary SDL executables | `PACKAGE_METADATA_ONLY` |
+| yquake2 | SDL consumer; no exact PS5 launched artifact/process contract | `SDL_CONSUMER_LAUNCH_CONTEXT_UNPROVEN` |
+
+A `homebrew.js` object that returns `path` and `args` is not application
+registration. A README command naming `hbldr` is not source proof of how
+`hbldr` creates a process or which active-app/display state exists. No
+official-port success claim is used as firmware-9.60 hardware evidence.
+
+## Fail-closed outcome
+
+The exact pre-submit effect contributed by SDL2main is
+`EARLIER_HIDE_SPLASH_ONLY`. The exact post-return effect is
+`LOAD_EXEC_EXIT`. Neither is a source-proven correction for the observed
+submit failure. The launcher and active-app hypotheses remain unproven until
+the exact `hbldr`/`shsrv` implementation and launch provenance are bound in a
+separate offline phase.