64 	struct atexit *p = __atexit;  in __cxa_atexit()  local
69 	if (pgsize < (int)sizeof(*p))  in __cxa_atexit()
72 	p = __atexit;  in __cxa_atexit()
73 	if (p != NULL) {  in __cxa_atexit()
74 		if (p->ind + 1 >= p->max)  in __cxa_atexit()
75 			p = NULL;  in __cxa_atexit()
76 		else if (mprotect(p, pgsize, PROT_READ | PROT_WRITE))  in __cxa_atexit()
79 	if (p == NULL) {  in __cxa_atexit()
80 		p = mmap(NULL, pgsize, PROT_READ | PROT_WRITE,  in __cxa_atexit()
82 		if (p == MAP_FAILED)  in __cxa_atexit()
85 			memset(&p->fns[0], 0, sizeof(p->fns[0]));  in __cxa_atexit()
86 			p->ind = 1;  in __cxa_atexit()
88 			p->ind = 0;  in __cxa_atexit()
89 		p->max = (pgsize - ((char *)&p->fns[0] - (char *)p)) /  in __cxa_atexit()
90 		    sizeof(p->fns[0]);  in __cxa_atexit()
91 		p->next = __atexit;  in __cxa_atexit()
92 		__atexit = p;  in __cxa_atexit()
96 	fnp = &p->fns[p->ind++];  in __cxa_atexit()
100 	if (mprotect(p, pgsize, PROT_READ))  in __cxa_atexit()
116 	struct atexit *p, *q;  in __cxa_finalize()  local
127 	for (p = __atexit; p != NULL; p = p->next) {  in __cxa_finalize()
128 		for (n = p->ind; --n >= 0;) {  in __cxa_finalize()
129 			if (p->fns[n].fn_ptr.cxa_func == NULL)  in __cxa_finalize()
131 			if (dso != NULL && dso != p->fns[n].fn_dso)  in __cxa_finalize()
138 			fn = p->fns[n];  in __cxa_finalize()
139 			if (mprotect(p, pgsize, PROT_READ | PROT_WRITE) == 0) {  in __cxa_finalize()
140 				p->fns[n].fn_ptr.cxa_func = NULL;  in __cxa_finalize()
141 				mprotect(p, pgsize, PROT_READ);  in __cxa_finalize()
167 		for (p = __atexit; p != NULL; ) {  in __cxa_finalize()
168 			q = p;  in __cxa_finalize()
169 			p = p->next;  in __cxa_finalize()