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63 lines
2.0 KiB
63 lines
2.0 KiB
/* Increase stack size limit if possible. |
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Copyright (C) 2011 Free Software Foundation, Inc. |
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This file is part of the libiberty library. This library is free |
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software; you can redistribute it and/or modify it under the |
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terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 2, or (at your option) |
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any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with GNU CC; see the file COPYING. If not, write to |
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the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
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Boston, MA 02110-1301, USA. |
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As a special exception, if you link this library with files |
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compiled with a GNU compiler to produce an executable, this does not cause |
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the resulting executable to be covered by the GNU General Public License. |
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This exception does not however invalidate any other reasons why |
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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" |
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#include "ansidecl.h" |
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#ifdef HAVE_STDINT_H |
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#include <stdint.h> |
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#endif |
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#ifdef HAVE_SYS_RESOURCE_H |
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#include <sys/resource.h> |
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#endif |
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void |
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stack_limit_increase (unsigned long pref ATTRIBUTE_UNUSED) |
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{ |
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#if defined(HAVE_SETRLIMIT) && defined(HAVE_GETRLIMIT) \ |
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&& defined(RLIMIT_STACK) && defined(RLIM_INFINITY) |
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struct rlimit rlim; |
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if (getrlimit (RLIMIT_STACK, &rlim) == 0 |
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&& rlim.rlim_cur != RLIM_INFINITY |
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&& rlim.rlim_cur < pref |
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&& (rlim.rlim_max == RLIM_INFINITY || rlim.rlim_cur < rlim.rlim_max)) |
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{ |
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rlim.rlim_cur = pref; |
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if (rlim.rlim_max != RLIM_INFINITY && rlim.rlim_cur > rlim.rlim_max) |
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rlim.rlim_cur = rlim.rlim_max; |
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setrlimit (RLIMIT_STACK, &rlim); |
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} |
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#endif |
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}
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