glibc/elf/tst-dlclose-lazy-mod2.c

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/* Lazy binding during dlclose. Indirectly loaded module.
Copyright (C) 2023-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
void
exported_function (int ignored)
{
/* This function is interposed from tst-dlclose-lazy-mod1.so and
thus never called. */
abort ();
}
static void __attribute__ ((constructor))
init (void)
{
puts ("info: tst-dlclose-lazy-mod2.so constructor called");
/* Trigger lazy binding to the definition in
tst-dlclose-lazy-mod1.so, but not for
lazily_bound_exported_function in that module. */
exported_function (0);
}
static void __attribute__ ((destructor))
fini (void)
{
puts ("info: tst-dlclose-lazy-mod2.so destructor called");
/* Trigger the lazily_bound_exported_function call in
exported_function in tst-dlclose-lazy-mod1.so. */
exported_function (1);
}