5 lines
		
	
	
		
			128 B
		
	
	
	
		
			C
		
	
	
		
		
			
		
	
	
			5 lines
		
	
	
		
			128 B
		
	
	
	
		
			C
		
	
	
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								#include <ucontext.h>
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								#define ucontext_stack_pointer(uap) \
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									((void *)(((ucontext_t *)(uap))->uc_mcontext.__gregs[_REG_URSP]))
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