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/* Determine whether block of given size can be allocated on the stack or not.
Copyright (C) 2002-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, see <http://www.gnu.org/licenses/>. */
#include <alloca.h>
#include <limits.h>
extern __always_inline
int
__libc_use_alloca (size_t size)
{
return (__builtin_expect (size <= PTHREAD_STACK_MIN / 4, 1)
|| __builtin_expect (__libc_alloca_cutoff (size), 1));
}
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