51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* This file is part of ltrace.
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* Copyright (C) 2012 Petr Machata, Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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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 St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/* This is specially made to produce tail calls. We then trace them
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* and see if ltrace handles it well, or whether its internal stack
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* overflows. */
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__attribute__((noinline, optimize(3))) int
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func3(int i)
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{
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return i + 1;
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}
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__attribute__((noinline, optimize(3))) int
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func2(int i)
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{
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return func3(i * 3);
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}
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__attribute__((noinline, optimize(3))) int
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func1(int i)
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{
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return func2(i + 2);
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}
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__attribute__((optimize(0))) int
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main(int argc, char **argv)
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{
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int counter = 0;
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int i;
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for (i = 0; i < 100; ++i)
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counter += func1(i);
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return counter;
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}
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