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/* initpri3.c -- test ctor odering when using init_array.
Copyright (C) 2011-2020 Free Software Foundation, Inc.
Written by Ian Lance Taylor <iant@google.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. */
/* This tests that the linker correctly orders .ctor entries when
putting them into .init_array, as is the default. */
#include <assert.h>
int i = 1;
static void
ctor1 (void)
{
assert (i == 1);
i = 2;
}
static void
ctor2 (void)
{
assert (i == 2);
i = 3;
}
static void
dtor1 (void)
{
assert (i == 3);
i = 2;
}
static void
dtor2 (void)
{
assert (i == 2);
i = 1;
}
/* The .ctors section is run in reverse order, the .dtors section in
run in forward order. We give these arrays the "aligned" attribute
because the x86_64 ABI would otherwise give them a 16-byte
alignment, which may leave a hole in the section. */
void (*ctors[]) (void)
__attribute__ ((aligned (4), section (".ctors"))) = {
ctor2,
ctor1
};
void (*dtors[]) (void)
__attribute__ ((aligned (4), section (".dtors"))) = {
dtor1,
dtor2
};
int
main (void)
{
assert (i == 3);
return 0;
}
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