50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// large_symbol_alignment.cc -- a test case for gold
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// Copyright 2013 Free Software Foundation, Inc.
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// Written by Alexander Ivchenko <alexander.ivchenko@intel.com>.
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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// The goal of this program is to verify that Gold correctly aligns
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// the symbol with a large alignemnt (often larger than the page size).
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#include <stdint.h>
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__attribute__ ((aligned(8192))) int aligned_8k_var;
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__attribute__ ((aligned(4096))) int aligned_4k_var;
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__attribute__ ((aligned(16384))) int aligned_16k_var;
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bool
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is_aligned(const int& var, int align) __attribute__((noinline));
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bool
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is_aligned(const int& var, int align)
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{
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return (reinterpret_cast<uintptr_t>(&var) & (align - 1)) == 0;
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}
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int
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main()
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{
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if (!is_aligned(aligned_16k_var, 16384)
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|| !is_aligned(aligned_8k_var, 8192)
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|| !is_aligned(aligned_4k_var, 4096))
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return 1;
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return 0;
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}
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