50     volatile int * volatile xerrok)  in execute()  argument
66 	if (xerrok == NULL)  in execute()
67 		xerrok = &dummy;  in execute()
71 		return (exchild(t, flags & ~XTIME, xerrok, -1));  in execute()
179 		rv = comexec(t, tp, (const char **)ap, flags, xerrok);  in execute()
183 		rv = execute(t->left, flags | XFORK, xerrok);  in execute()
214 		i = exchild(t, flags | XPCLOSE | XPIPEST, xerrok, 0);  in execute()
224 		rv = execute(t, flags & XERROK, xerrok);  in execute()
299 		rv = execute(t->left, (flags&~XEXEC)|XBGND|XFORK, xerrok);  in execute()
304 		rv = execute(t->left, XERROK, xerrok);  in execute()
306 			rv = execute(t->right, XERROK, xerrok);  in execute()
308 		if (xerrok)  in execute()
309 			*xerrok = 1;  in execute()
313 		rv = !execute(t->right, XERROK, xerrok);  in execute()
315 		if (xerrok)  in execute()
316 			*xerrok = 1;  in execute()
358 				rv = execute(t->left, flags & XERROK, xerrok);  in execute()
369 				execute(t->left, flags & XERROK, xerrok);  in execute()
395 			rv = execute(t->right, flags & XERROK, xerrok);  in execute()
404 		    execute(t->right->left, flags & XERROK, xerrok) :  in execute()
405 		    execute(t->right->right, flags & XERROK, xerrok);  in execute()
416 					    xerrok);  in execute()
436 		rv = execute(t->left, flags & XERROK, xerrok);  in execute()
448 		rv = timex(t, flags & ~XEXEC, xerrok);  in execute()
484 	    (xerrok == NULL || !*xerrok)) {  in execute()
498     volatile int flags, volatile int *xerrok)  in comexec()  argument
739 			exstat = execute(tp->val.t, flags & XERROK, xerrok);  in comexec()
815 		rv = exchild(&texec, flags, xerrok, -1);  in comexec()