diff options
Diffstat (limited to 'elf/tst-dlopen-tlsreinit1.c')
-rw-r--r-- | elf/tst-dlopen-tlsreinit1.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/elf/tst-dlopen-tlsreinit1.c b/elf/tst-dlopen-tlsreinit1.c new file mode 100644 index 0000000000..2016b9b0c6 --- /dev/null +++ b/elf/tst-dlopen-tlsreinit1.c @@ -0,0 +1,40 @@ +/* Test that dlopen preserves already accessed TLS (bug 31717). + 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 <stdbool.h> +#include <support/check.h> +#include <support/xdlfcn.h> +#include <ctype.h> + +static int +do_test (void) +{ + void *handle = xdlopen ("tst-dlopen-tlsreinitmod1.so", RTLD_NOW); + + bool *tlsreinitmod3_tested = xdlsym (handle, "tlsreinitmod3_tested"); + TEST_VERIFY (*tlsreinitmod3_tested); + + xdlclose (handle); + + /* This crashes if the libc.so.6 TLS image has been reverted. */ + TEST_VERIFY (!isupper ('@')); + + return 0; +} + +#include <support/test-driver.c> |