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Rev | Author | Line No. | Line |
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5191 | serge | 1 | /* Increase stack size limit if possible. |
2 | Copyright (C) 2011 Free Software Foundation, Inc. |
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3 | |||
4 | This file is part of the libiberty library. This library is free |
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5 | software; you can redistribute it and/or modify it under the |
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6 | terms of the GNU General Public License as published by the |
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7 | Free Software Foundation; either version 2, or (at your option) |
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8 | any later version. |
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9 | |||
10 | This library is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | GNU General Public License for more details. |
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14 | |||
15 | You should have received a copy of the GNU General Public License |
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16 | along with GNU CC; see the file COPYING. If not, write to |
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17 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
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18 | Boston, MA 02110-1301, USA. |
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19 | |||
20 | As a special exception, if you link this library with files |
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21 | compiled with a GNU compiler to produce an executable, this does not cause |
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22 | the resulting executable to be covered by the GNU General Public License. |
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23 | This exception does not however invalidate any other reasons why |
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24 | the executable file might be covered by the GNU General Public License. */ |
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25 | |||
26 | /* |
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27 | |||
28 | @deftypefn Extension void stack_limit_increase (unsigned long @var{pref}) |
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29 | |||
30 | Attempt to increase stack size limit to @var{pref} bytes if possible. |
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31 | |||
32 | @end deftypefn |
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33 | |||
34 | */ |
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35 | |||
36 | #include "config.h" |
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37 | #include "ansidecl.h" |
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38 | |||
39 | #ifdef HAVE_STDINT_H |
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40 | #include |
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41 | #endif |
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42 | #ifdef HAVE_SYS_RESOURCE_H |
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43 | #include |
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44 | #endif |
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45 | |||
46 | void |
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47 | stack_limit_increase (unsigned long pref ATTRIBUTE_UNUSED) |
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48 | { |
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49 | #if defined(HAVE_SETRLIMIT) && defined(HAVE_GETRLIMIT) \ |
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50 | && defined(RLIMIT_STACK) && defined(RLIM_INFINITY) |
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51 | struct rlimit rlim; |
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52 | if (getrlimit (RLIMIT_STACK, &rlim) == 0 |
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53 | && rlim.rlim_cur != RLIM_INFINITY |
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54 | && rlim.rlim_cur < pref |
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55 | && (rlim.rlim_max == RLIM_INFINITY || rlim.rlim_cur < rlim.rlim_max)) |
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56 | { |
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57 | rlim.rlim_cur = pref; |
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58 | if (rlim.rlim_max != RLIM_INFINITY && rlim.rlim_cur > rlim.rlim_max) |
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59 | rlim.rlim_cur = rlim.rlim_max; |
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60 | setrlimit (RLIMIT_STACK, &rlim); |
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61 | } |
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62 | #endif |
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63 | }>> |