Commit | Line | Data |
---|---|---|
4ca24d90 CC |
1 | // large_symbol_alignment.cc -- a test case for gold |
2 | ||
b90efa5b | 3 | // Copyright (C) 2013-2015 Free Software Foundation, Inc. |
4ca24d90 CC |
4 | // Written by Alexander Ivchenko <alexander.ivchenko@intel.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
23 | // The goal of this program is to verify that Gold correctly aligns | |
24 | // the symbol with a large alignemnt (often larger than the page size). | |
25 | ||
26 | #include <stdint.h> | |
27 | ||
28 | __attribute__ ((aligned(8192))) int aligned_8k_var; | |
29 | __attribute__ ((aligned(4096))) int aligned_4k_var; | |
30 | __attribute__ ((aligned(16384))) int aligned_16k_var; | |
31 | ||
32 | bool | |
33 | is_aligned(const int& var, int align) __attribute__((noinline)); | |
34 | ||
35 | bool | |
36 | is_aligned(const int& var, int align) | |
37 | { | |
38 | return (reinterpret_cast<uintptr_t>(&var) & (align - 1)) == 0; | |
39 | } | |
40 | ||
41 | int | |
42 | main() | |
43 | { | |
44 | if (!is_aligned(aligned_16k_var, 16384) | |
45 | || !is_aligned(aligned_8k_var, 8192) | |
46 | || !is_aligned(aligned_4k_var, 4096)) | |
47 | return 1; | |
48 | return 0; | |
49 | } |