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1 | /** @file |
2 | ||
3 | Copyright (c) 2018, Linaro Limited. All rights reserved. | |
4 | ||
5 | This program and the accompanying materials | |
6 | are licensed and made available under the terms and conditions of the BSD License | |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | **/ | |
14 | ||
15 | #ifndef __PLATFORM_HIDDEN_H | |
16 | #define __PLATFORM_HIDDEN_H | |
17 | ||
18 | // | |
19 | // Setting the GCC -fvisibility=hidden command line option is not quite the same | |
20 | // as setting the pragma below: the former only affects definitions, whereas the | |
21 | // pragma affects extern declarations as well. So if we want to ensure that no | |
22 | // GOT indirected symbol references are emitted, we need to use the pragma, or | |
23 | // GOT based cross object references could be emitted, e.g., in libraries, and | |
24 | // these cannot be relaxed to ordinary symbol references at link time. | |
25 | // | |
26 | #pragma GCC visibility push (hidden) | |
27 | ||
28 | #endif |