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platsch: Continue to boot when there is no screen #10

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platsch: Continue to boot when there is no screen #10

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22 changes: 21 additions & 1 deletion platsch.c
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Original file line number Diff line number Diff line change
Expand Up @@ -113,8 +113,28 @@ int main(int argc, char *argv[])
}

ctx = platsch_create_ctx(dir, base);
if (!ctx)
if (!ctx) {
/* If we're PID 1, do NOT die on missing DRM. Hand off to real init. */
error("platsch: no DRM device found, continuing without splash\n");
if (pid1) {
initsargv = calloc(argc + 1, sizeof(argv[0]));
if (!initsargv) {
error("failed to allocate argv for init\n");
return EXIT_FAILURE;
}
memcpy(initsargv, argv, argc * sizeof(argv[0]));
initsargv[0] = "/sbin/init";
initsargv[argc] = NULL;

execv("/sbin/init", initsargv);
error("failed to exec init: %m\n");
/* If exec fails, we have to return non-zero; kernel will panic anyway. */
return EXIT_FAILURE;
}

/* Not PID 1: keep current behaviour (useful for diagnostics in user space) */
return EXIT_FAILURE;
}

platsch_draw(ctx);

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