 bef0e3eb63
			
		
	
	
		bef0e3eb63
		
	
	
	
	
		
			
			swapcontext, and makecontext). - Fix VM to not erroneously think the stack segment and data segment have collided when a user-space thread invokes brk(). - Add test51 to test ucontext functionality. - Add man pages for ucontext system calls.
		
			
				
	
	
		
			27 lines
		
	
	
		
			342 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			342 B
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * mcontext.c
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|  */
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| #include <lib.h>
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| #include <ucontext.h>
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| #include <unistd.h>
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| 
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| PUBLIC int setmcontext(const mcontext_t *mcp)
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| {
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|   message m;
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| 
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|   m.m1_p1 = (char *) mcp;
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| 
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|   return(_syscall(MM, SETMCONTEXT, &m));
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| }
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| 
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| 
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| PUBLIC int getmcontext(mcontext_t *mcp)
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| {
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|   message m;
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| 
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|   m.m1_p1 = (char *) mcp;
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| 
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|   return(_syscall(MM, GETMCONTEXT, &m));
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| }
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| 
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