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93a6d082 | 1 | /* Define macros for stack address aliasing issues for NPTL. i686 version. |
f7a9f785 | 2 | Copyright (C) 2014-2016 Free Software Foundation, Inc. |
93a6d082 RM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | /* It turns out that stack coloring is in general not good on P4s. Some | |
20 | applications will benefit. We will probably have a configuration option | |
21 | at some point. To enable coloring, set this to 128. */ | |
22 | #define COLORING_INCREMENT 0 | |
23 | ||
24 | /* What is useful is to avoid the 64k aliasing problem which reliably | |
25 | happens if all stacks use sizes which are a multiple of 64k. Tell | |
26 | the stack allocator to disturb this by allocation one more page if | |
27 | necessary. */ | |
28 | #define MULTI_PAGE_ALIASING 65536 |