glibc/elf/tst-dlopen-recurse.c
Florian Weimer 9897ced8e7 elf: Run constructors on cyclic recursive dlopen (bug 31986)
This is conceptually similar to the reported bug, but does not
depend on auditing.  The fix is simple: just complete execution
of the constructors.  This exposed the fact that the link map
for statically linked executables does not have l_init_called
set, even though constructors have run.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2024-10-25 16:50:10 +02:00

35 lines
1.2 KiB
C

/* Test that recursive dlopen runs constructors before return (bug 31986).
Copyright (C) 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 <support/check.h>
#include <support/xdlfcn.h>
static int
do_test (void)
{
void *handle = xdlopen ("tst-dlopen-recursemod1.so", RTLD_NOW);
int *status = dlsym (handle, "recursemod1_status");
printf ("info: recursemod1_status == %d (from main)\n", *status);
TEST_COMPARE (*status, 2);
xdlclose (handle);
return 0;
}
#include <support/test-driver.c>