0,0 → 1,63 |
/* Increase stack size limit if possible. |
Copyright (C) 2011 Free Software Foundation, Inc. |
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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. */ |
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/* |
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@deftypefn Extension void stack_limit_increase (unsigned long @var{pref}) |
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Attempt to increase stack size limit to @var{pref} bytes if possible. |
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@end deftypefn |
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*/ |
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#include "config.h" |
#include "ansidecl.h" |
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#ifdef HAVE_STDINT_H |
#include <stdint.h> |
#endif |
#ifdef HAVE_SYS_RESOURCE_H |
#include <sys/resource.h> |
#endif |
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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 |
} |