148 guard_position (void *mem, size_t size, size_t guardsize, struct pthread *pd,  in guard_position()  argument
152   return mem + (((size - guardsize) / 2) & ~pagesize_m1);  in guard_position()
156   return (char *) (((uintptr_t) pd - guardsize) & ~pagesize_m1);  in guard_position()
163 setup_stack_prot (char *mem, size_t size, char *guard, size_t guardsize,  in setup_stack_prot()  argument
166   char *guardend = guard + guardsize;  in setup_stack_prot()
170   if (__mprotect (guardend, size - guardsize, prot) != 0)  in setup_stack_prot()
186 advise_stack_range (void *mem, size_t size, uintptr_t pd, size_t guardsize)  in advise_stack_range()  argument
199   uintptr_t free_end = (pd - guardsize) & ~pagesize_m1;  in advise_stack_range()
324       size_t guardsize;  in allocate_stack()  local
343       guardsize = (attr->guardsize + pagesize_m1) & ~pagesize_m1;  in allocate_stack()
344       reported_guardsize = guardsize;  in allocate_stack()
345       if (guardsize > 0 && guardsize < ARCH_MIN_GUARD_SIZE)  in allocate_stack()
346 	guardsize = ARCH_MIN_GUARD_SIZE;  in allocate_stack()
347       if (guardsize < attr->guardsize || size + guardsize < guardsize)  in allocate_stack()
350       size += guardsize;  in allocate_stack()
351       if (__builtin_expect (size < ((guardsize + tls_static_size_for_stack  in allocate_stack()
366 	  mem = __mmap (NULL, size, (guardsize == 0) ? prot : PROT_NONE,  in allocate_stack()
389 	  if (__glibc_likely (guardsize > 0))  in allocate_stack()
391 	      char *guard = guard_position (mem, size, guardsize, pd,  in allocate_stack()
393 	      if (setup_stack_prot (mem, size, guard, guardsize, prot) != 0)  in allocate_stack()
405 	  pd->guardsize = guardsize;  in allocate_stack()
471       if (__glibc_unlikely (guardsize > pd->guardsize))  in allocate_stack()
473 	  char *guard = guard_position (mem, size, guardsize, pd,  in allocate_stack()
475 	  if (__mprotect (guard, guardsize, PROT_NONE) != 0)  in allocate_stack()
498 	  pd->guardsize = guardsize;  in allocate_stack()
500       else if (__builtin_expect (pd->guardsize - guardsize > size - reqsize,  in allocate_stack()
506 	  char *guard = mem + (((size - guardsize) / 2) & ~pagesize_m1);  in allocate_stack()
507 	  char *oldguard = mem + (((size - pd->guardsize) / 2) & ~pagesize_m1);  in allocate_stack()
513 	  if (__mprotect (guard + guardsize,  in allocate_stack()
514 			oldguard + pd->guardsize - guard - guardsize,  in allocate_stack()
518 	  if (__mprotect ((char *) mem + guardsize, pd->guardsize - guardsize,  in allocate_stack()
522          char *new_guard = (char *)(((uintptr_t) pd - guardsize)  in allocate_stack()
524          char *old_guard = (char *)(((uintptr_t) pd - pd->guardsize)  in allocate_stack()
533 	  pd->guardsize = guardsize;  in allocate_stack()