82 	struct atexit *p = __atexit;  in __cxa_atexit()  local
87 	if (pgsize < sizeof(*p))  in __cxa_atexit()
90 	p = __atexit;  in __cxa_atexit()
91 	if (p != NULL) {  in __cxa_atexit()
92 		if (p->ind + 1 >= p->max)  in __cxa_atexit()
93 			p = NULL;  in __cxa_atexit()
94 		else if (mprotect(p, pgsize, PROT_READ | PROT_WRITE))  in __cxa_atexit()
97 	if (p == NULL) {  in __cxa_atexit()
98 		p = mmap(NULL, pgsize, PROT_READ | PROT_WRITE,  in __cxa_atexit()
100 		if (p == MAP_FAILED)  in __cxa_atexit()
103 		prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, p, pgsize,  in __cxa_atexit()
107 			memset(&p->fns[0], 0, sizeof(p->fns[0]));  in __cxa_atexit()
108 			p->ind = 1;  in __cxa_atexit()
110 			p->ind = 0;  in __cxa_atexit()
111 		p->max = (pgsize - ((char *)&p->fns[0] - (char *)p)) /  in __cxa_atexit()
112 		    sizeof(p->fns[0]);  in __cxa_atexit()
113 		p->next = __atexit;  in __cxa_atexit()
114 		__atexit = p;  in __cxa_atexit()
116 	fnp = &p->fns[p->ind++];  in __cxa_atexit()
120 	if (mprotect(p, pgsize, PROT_READ))  in __cxa_atexit()
137 	struct atexit *p, *q;  in __cxa_finalize()  local
147 	for (p = __atexit; p != NULL; p = p->next) {  in __cxa_finalize()
148 		for (n = p->ind; --n >= 0;) {  in __cxa_finalize()
149 			if (p->fns[n].fn_ptr == NULL)  in __cxa_finalize()
151 			if (dso != NULL && dso != p->fns[n].fn_dso)  in __cxa_finalize()
158 			fn = p->fns[n];  in __cxa_finalize()
159 			if (mprotect(p, pgsize, PROT_READ | PROT_WRITE) == 0) {  in __cxa_finalize()
160 				p->fns[n].fn_ptr = NULL;  in __cxa_finalize()
161 				mprotect(p, pgsize, PROT_READ);  in __cxa_finalize()
179 		for (p = __atexit; p != NULL; ) {  in __cxa_finalize()
180 			q = p;  in __cxa_finalize()
181 			p = p->next;  in __cxa_finalize()