From 0b3366f6a93ac0f7e2028745ea557c0acd8722c6 Mon Sep 17 00:00:00 2001 From: "\"Steven J. Hill\"" Date: Sat, 7 May 2005 02:04:55 +0000 Subject: Import in NPTL code from glibc. For further information please consult the 'README.NPTL' file. --- libpthread/nptl/alloca_cutoff.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 libpthread/nptl/alloca_cutoff.c (limited to 'libpthread/nptl/alloca_cutoff.c') diff --git a/libpthread/nptl/alloca_cutoff.c b/libpthread/nptl/alloca_cutoff.c new file mode 100644 index 000000000..ba26ceba3 --- /dev/null +++ b/libpthread/nptl/alloca_cutoff.c @@ -0,0 +1,36 @@ +/* Determine whether block of given size can be allocated on the stack or not. + Copyright (C) 2002 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, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include +#include + + +int +__libc_alloca_cutoff (size_t size) +{ + return size <= (MIN (__MAX_ALLOCA_CUTOFF, + THREAD_GETMEM (THREAD_SELF, stackblock_size) / 4 + /* The main thread, before the thread library is + initialized, has zero in the stackblock_size + element. Since it is the main thread we can + assume the maximum available stack space. */ + ?: __MAX_ALLOCA_CUTOFF * 4)); +} -- cgit v1.2.3