how can i move such function code which i did not use in my application progamme ?

[red-eye at 263.net]

i look at my rtems-helloworld.num file
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0201a748 B __Partition_Information
0201a780 B __Timer_Information
0201a7b4 B __Event_Sync_state
0201a7b8 B __Semaphore_Information
0201a7f0 B __Rate_monotonic_Information
0201a828 B __Message_queue_Information
0201a85c B end
0201a860 B __end
0201a860 B _end
02400000 A _RAM_END

in the hello-world programe ,you know,i did not use many function in the rtems-helloworld.num.why it compile in my code size? such as 0200ce60 T __CORE_semaphore_Initialize
0200cea0 T __CORE_semaphore_Seize
0200cf1c T __CORE_semaphore_Surrender
0200cf6c T __CORE_semaphore_Flush

obviously,in the hello-world programe ,i did not use semaphore
can you tell me why ?
and how can i move such function code which i did not use in my application progamme ? use confdefs? but how ?


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