question about ".previous" directive in EXPORT_NO_SYMBOLS

["madsys" <madsys@ercist.iscas.ac.cn>]

hi all
	
	could anyone tell me what's the meaning of the ".previous" directive in EXPORT_NO_SYMBOLS ?
	the macro is below:

	#define EXPORT_NO_SYMBOLS __asm__(".section __ksymtab\n.previous") 

	
	thanx in advance

　　madsys


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