| 1 | /* Determine whether block of given size can be allocated on the stack or not. |
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| 2 | Copyright (C) 2002-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public License as |
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| 7 | published by the Free Software Foundation; either version 2.1 of the |
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| 8 | License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; see the file COPYING.LIB. If |
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| 17 | not, see <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <alloca.h> |
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| 20 | #include <limits.h> |
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| 21 | |
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| 22 | |
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| 23 | extern __always_inline |
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| 24 | int |
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| 25 | __libc_use_alloca (size_t size) |
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| 26 | { |
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| 27 | return (__glibc_likely (__libc_alloca_cutoff (size)) |
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| 28 | #ifdef PTHREAD_STACK_MIN |
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| 29 | || __glibc_likely (size <= PTHREAD_STACK_MIN / 4) |
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| 30 | #endif |
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| 31 | ); |
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| 32 | } |
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| 33 | |
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