Monorepo for Aesthetic.Computer
aesthetic.computer
fix: SDL probe in child process, SDL off until dlsym refactor
Binary crash from linker loading libSDL3→libgbm→iris_dri.so before
main(). Needs dlsym-based loading to avoid link-time dep. SDL off
in oven builds for now. Probe improvements kept for future use.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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fedac/native/src/drm-display.c
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fedac/native/src/drm-display.c
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extern void ac_log(const char *fmt, ...);
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// Probe whether SDL3 can init without crashing (runs in a child process)
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// Probe whether SDL3 can load + init without crashing (runs in a child process).
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// This catches missing DRI drivers, GBM failures, and segfaults in Mesa.
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static int sdl_probe_safe(void) {
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pid_t pid = fork();
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if (pid < 0) return 0; // fork failed, skip SDL
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if (pid == 0) {
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// Child: try SDL_Init, exit 0 on success, 1 on failure, crash = signal
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if (getpid() != 1) // never true in child, but set env anyway
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setenv("SDL_VIDEO_DRIVER", "kmsdrm", 0);
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// Child: try dlopen + SDL_Init. If anything crashes, parent sees the signal.
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void *lib = dlopen("libSDL3.so.0", RTLD_LAZY);
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if (!lib) _exit(2); // SDL not available
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dlclose(lib);
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setenv("SDL_VIDEO_DRIVER", "kmsdrm", 0);
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setenv("LIBGL_DRIVERS_PATH", "/lib64/dri", 0);
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setenv("GBM_DRIVERS_PATH", "/lib64/dri", 0);
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setenv("MESA_LOADER_DRIVER_OVERRIDE", "iris", 0);
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int ok = SDL_Init(SDL_INIT_VIDEO) ? 0 : 1;
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if (!ok) SDL_Quit();
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_exit(ok);
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int status = 0;
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waitpid(pid, &status, 0);
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if (WIFSIGNALED(status)) {
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ac_log("[sdl3] Probe crashed (signal %d) — skipping SDL3\n",
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ac_log("[sdl3] Probe crashed (signal %d) — falling back to DRM\n",
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WTERMSIG(status));
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return 0;
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}
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if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
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return 1;
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}
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ac_log("[sdl3] Probe failed (exit %d) — skipping SDL3\n",
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WIFEXITED(status) ? WEXITSTATUS(status) : -1);
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int code = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
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ac_log("[sdl3] Probe failed (exit %d) — falling back to DRM\n", code);
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return 0;
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}
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static ACDisplay *sdl_init(void) {
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// Check if libSDL3 is even loadable
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void *sdl_lib = dlopen("libSDL3.so.0", RTLD_LAZY | RTLD_NOLOAD);
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if (!sdl_lib) {
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sdl_lib = dlopen("libSDL3.so.0", RTLD_LAZY);
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if (!sdl_lib) {
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ac_log("[sdl3] libSDL3.so.0 not found — skipping\n");
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return NULL;
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}
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}
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dlclose(sdl_lib);
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// Probe in a child process to catch segfaults
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// Probe in a child process first — catches segfaults from broken DRI/GBM
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if (!sdl_probe_safe()) return NULL;
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// Set KMSDRM hints for bare metal (no X11/Wayland)