1 files changed, 35 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/alloca_cutoff.c b/libpthread/linuxthreads/alloca_cutoff.c
new file mode 100644
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;
+}