Run demos on mips

what is the “semaphore”?
I run the demos under /tests,the errors will be generated:

enter NX_Available
leave NX_Available
enter NX_CreateDevice
leave NX_CreateDevice
enter NX_VideoInit
enter create_aux_windows
leave create_aux_windows
leave NX_VideoInit
enter NX_InitOSKeymap
leave NX_InitOSKeymap
enter NX_VideoQuit
enter NX_DestroyImage
leave NX_DestroyImage
enter NX_DestroyWindow
leave NX_DestroyWindow
nano-X: GsError (GrDestroyGC) leave NX_VideoQuit
enter NX_DeleteDevice
Bad graphics context: 0
leave NX_DeleteDevice
Couldn’t initialize SDL: Couldn’t create semaphore
Only testver ,testcdrom & testtypes can be run well.
I use uclinux.well, is this errors related to the OS?
how to solve it then?

Best regards,
Andy

A semaphore is an OS data structure for
serializing accesses between common data structures
when using multiprograming (processes/threads.)

Crystalandy wrote:> what is the “semaphore”?

I run the demos under /tests,the errors will be generated:

enter NX_Available
leave NX_Available
enter NX_CreateDevice
leave NX_CreateDevice
enter NX_VideoInit
enter create_aux_windows
leave create_aux_windows
leave NX_VideoInit
enter NX_InitOSKeymap
leave NX_InitOSKeymap
enter NX_VideoQuit
enter NX_DestroyImage
leave NX_DestroyImage
enter NX_DestroyWindow
leave NX_DestroyWindow
nano-X: GsError (GrDestroyGC) leave NX_VideoQuit
enter NX_DeleteDevice
Bad graphics context: 0
leave NX_DeleteDevice
Couldn’t initialize SDL: Couldn’t create semaphore
Only testver ,testcdrom & testtypes can be run well.
I use uclinux.well, is this errors related to the OS?
how to solve it then?

Best regards,
Andy

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