]>
Commit | Line | Data |
---|---|---|
2493e718 | 1 | /* Support code for fibers and multithreading. |
8d9254fc | 2 | Copyright (C) 2019-2020 Free Software Foundation, Inc. |
2493e718 IB |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | Under Section 7 of GPL version 3, you are granted additional | |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
24 | ||
25 | #if (__linux__ || __FreeBSD__ || __NetBSD__ || __DragonFly__) && __ELF__ | |
26 | /* | |
27 | * Mark the resulting object file as not requiring execution permissions on | |
28 | * stack memory. The absence of this section would mark the whole resulting | |
29 | * library as requiring an executable stack, making it impossible to | |
30 | * dynamically load druntime on several Linux platforms where this is | |
31 | * forbidden due to security policies. | |
32 | */ | |
33 | .section .note.GNU-stack,"",%progbits | |
34 | #endif | |
35 | ||
36 | /* Let preprocessor tell us if C symbols have a prefix: __USER_LABEL_PREFIX__ */ | |
37 | #ifdef __USER_LABEL_PREFIX__ | |
38 | #define __CONCAT2(a, b) a ## b | |
39 | #define __CONCAT(a, b) __CONCAT2(a, b) | |
40 | #define CSYM(name) __CONCAT(__USER_LABEL_PREFIX__, name) | |
41 | #else | |
42 | #define CSYM(name) name | |
43 | #endif |