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Diffstat (limited to 'libpthread/linuxthreads/alloca_cutoff.c')
-rw-r--r--libpthread/linuxthreads/alloca_cutoff.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/alloca_cutoff.c b/libpthread/linuxthreads/alloca_cutoff.c
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index 000000000..9fe13a39d
--- /dev/null
+++ b/libpthread/linuxthreads/alloca_cutoff.c
@@ -0,0 +1,35 @@
+/* Determine whether block of given size can be allocated on the stack or not.
+ Copyright (C) 2002, 2003 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 <stdlib.h>
+#include <sys/param.h>
+#include "internals.h"
+#include <sysdep-cancel.h>
+
+int
+__libc_alloca_cutoff (size_t size)
+{
+ if (! SINGLE_THREAD_P)
+ {
+ pthread_descr self = thread_self ();
+ return size <= LIBC_THREAD_GETMEM (self, p_alloca_cutoff);
+ }
+
+ return size <= __MAX_ALLOCA_CUTOFF;
+}