glibc/elf/tst-sonamemove-link.c

42 lines
1.5 KiB
C

/* Check that a versioned symbol can move from one library to another.
Copyright (C) 2019-2020 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/>. */
/* At link time, moved_function is bound to the symbol version
SONAME_MOVE in tst-sonamemove-runmod1.so, using the
tst-sonamemove-linkmod1.so stub object.
At run time, the process loads the real tst-sonamemove-runmod1.so,
which depends on tst-sonamemove-runmod2.so.
tst-sonamemove-runmod1.so does not define moved_function, but
tst-sonamemove-runmod2.so does.
The net effect is that the versioned symbol
moved_function@SONAME_MOVE moved from the soname
tst-sonamemove-linkmod1.so at link time to the soname
tst-sonamemove-linkmod2.so at run time. */
void moved_function (void);
static int
do_test (void)
{
moved_function ();
return 0;
}
#include <support/test-driver.c>