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/*
* This file is part of ltrace.
* Copyright (C) 2012 Petr Machata, Red Hat Inc.
*
* 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 2 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 St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
/* This is specially made to produce tail calls. We then trace them
* and see if ltrace handles it well, or whether its internal stack
* overflows. */
__attribute__((noinline, optimize(3))) int
func3(int i)
{
return i + 1;
}
__attribute__((noinline, optimize(3))) int
func2(int i)
{
return func3(i * 3);
}
__attribute__((noinline, optimize(3))) int
func1(int i)
{
return func2(i + 2);
}
__attribute__((optimize(0))) int
main(int argc, char **argv)
{
int counter = 0;
int i;
for (i = 0; i < 100; ++i)
counter += func1(i);
return counter;
}
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