mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-25 20:14:46 +08:00
63e1e57a9a
2012-04-02 Tristan Gingold <gingold@adacore.com>
* stack-limit.c: Includes ansidecl.h.
(stack_limit_increase): Add ATTRIBUTE_UNUSED
From-SVN: r186064
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Increase stack size limit if possible.
|
|
Copyright (C) 2011 Free Software Foundation, Inc.
|
|
|
|
This file is part of the libiberty library. This library is free
|
|
software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 51 Franklin Street - Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
|
|
As a special exception, if you link this library with files
|
|
compiled with a GNU compiler to produce an executable, this does not cause
|
|
the resulting executable to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why
|
|
the executable file might be covered by the GNU General Public License. */
|
|
|
|
/*
|
|
|
|
@deftypefn Extension void stack_limit_increase (unsigned long @var{pref})
|
|
|
|
Attempt to increase stack size limit to @var{pref} bytes if possible.
|
|
|
|
@end deftypefn
|
|
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "ansidecl.h"
|
|
|
|
#ifdef HAVE_STDINT_H
|
|
#include <stdint.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_RESOURCE_H
|
|
#include <sys/resource.h>
|
|
#endif
|
|
|
|
void
|
|
stack_limit_increase (unsigned long pref ATTRIBUTE_UNUSED)
|
|
{
|
|
#if defined(HAVE_SETRLIMIT) && defined(HAVE_GETRLIMIT) \
|
|
&& defined(RLIMIT_STACK) && defined(RLIM_INFINITY)
|
|
struct rlimit rlim;
|
|
if (getrlimit (RLIMIT_STACK, &rlim) == 0
|
|
&& rlim.rlim_cur != RLIM_INFINITY
|
|
&& rlim.rlim_cur < pref
|
|
&& (rlim.rlim_max == RLIM_INFINITY || rlim.rlim_cur < rlim.rlim_max))
|
|
{
|
|
rlim.rlim_cur = pref;
|
|
if (rlim.rlim_max != RLIM_INFINITY && rlim.rlim_cur > rlim.rlim_max)
|
|
rlim.rlim_cur = rlim.rlim_max;
|
|
setrlimit (RLIMIT_STACK, &rlim);
|
|
}
|
|
#endif
|
|
}
|