1 // large_symbol_alignment.cc -- a test case for gold 2 3 // Copyright (C) 2013-2014 Free Software Foundation, Inc. 4 // Written by Alexander Ivchenko <alexander.ivchenko (at) 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 } 50
