mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-11 19:49:32 +00:00
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// large_symbol_alignment.cc -- a test case for gold
|
|
|
|
// Copyright (C) 2013-2022 Free Software Foundation, Inc.
|
|
// Written by Alexander Ivchenko <alexander.ivchenko@intel.com>.
|
|
|
|
// This file is part of gold.
|
|
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
// MA 02110-1301, USA.
|
|
|
|
// The goal of this program is to verify that Gold correctly aligns
|
|
// the symbol with a large alignemnt (often larger than the page size).
|
|
|
|
#include <stdint.h>
|
|
|
|
__attribute__ ((aligned(8192))) int aligned_8k_var;
|
|
__attribute__ ((aligned(4096))) int aligned_4k_var;
|
|
__attribute__ ((aligned(16384))) int aligned_16k_var;
|
|
|
|
bool
|
|
is_aligned(const int& var, int align) __attribute__((noinline));
|
|
|
|
bool
|
|
is_aligned(const int& var, int align)
|
|
{
|
|
return (reinterpret_cast<uintptr_t>(&var) & (align - 1)) == 0;
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
if (!is_aligned(aligned_16k_var, 16384)
|
|
|| !is_aligned(aligned_8k_var, 8192)
|
|
|| !is_aligned(aligned_4k_var, 4096))
|
|
return 1;
|
|
return 0;
|
|
}
|