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author | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-07-22 11:21:49 +0200 |
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committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-07-22 11:21:49 +0200 |
commit | 679debeea3913242cd756be013e329ed8ab92af4 (patch) | |
tree | f7e71ba3ab802ea17dc5cf71aa00ee0e6f8acc76 | |
parent | 50823f95fd725137d863850e8d5e765ad8c2df67 (diff) | |
download | gcc-679debeea3913242cd756be013e329ed8ab92af4.zip gcc-679debeea3913242cd756be013e329ed8ab92af4.tar.gz gcc-679debeea3913242cd756be013e329ed8ab92af4.tar.bz2 |
re PR c++/49756 (g++ ICE)
PR c++/49756
* libiberty.h (stack_limit_increase): New prototype.
* stack-limit.c: New file.
* Makefile.in: Regenerate deps.
(CFILES): Add stack-limit.c.
(REQUIRED_OFILES): Add ./stack-limit.$(objext).
* configure.ac (checkfuncs): Add getrlimit and setrlimit.
(AC_CHECK_FUNCS): Likewise.
* configure: Regenerated.
* config.in: Regenerated.
* gcc.c (main): Call stack_limit_increase (64MB).
* toplev.c (toplev_main): Likewise.
From-SVN: r176622
-rw-r--r-- | libiberty/stack-limit.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/libiberty/stack-limit.c b/libiberty/stack-limit.c new file mode 100644 index 0000000..28541b1 --- /dev/null +++ b/libiberty/stack-limit.c @@ -0,0 +1,59 @@ +/* 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" + +#ifdef HAVE_SYS_RESOURCE_H +#include <sys/resource.h> +#endif + +void +stack_limit_increase (unsigned long pref) +{ +#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 +} |