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30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* Determine whether block of given size can be allocated on the stack or not.
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Copyright (C) 2002-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#include <alloca.h>
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#include <limits.h>
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extern __always_inline
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int
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__libc_use_alloca (size_t size)
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{
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return (__builtin_expect (size <= PTHREAD_STACK_MIN / 4, 1)
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|| __builtin_expect (__libc_alloca_cutoff (size), 1));
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}
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