diff options
Diffstat (limited to 'elf/tst-dlclose-lazy-mod1.c')
-rw-r--r-- | elf/tst-dlclose-lazy-mod1.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/elf/tst-dlclose-lazy-mod1.c b/elf/tst-dlclose-lazy-mod1.c new file mode 100644 index 0000000000..8439dc1925 --- /dev/null +++ b/elf/tst-dlclose-lazy-mod1.c @@ -0,0 +1,36 @@ +/* Lazy binding during dlclose. Directly loaded module. + Copyright (C) 2023 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/>. */ + +/* This function is called from exported_function below. It is only + defined in this module. The weak attribute mimics how G++ + implements vague linkage for C++. */ +void __attribute__ ((weak)) +lazily_bound_exported_function (void) +{ +} + +/* Called from tst-dlclose-lazy-mod2.so. */ +void +exported_function (int call_it) +{ + if (call_it) + /* Previous to the fix this would crash when called during dlclose + since symbols from the DSO were no longer available for binding + (bug 30425) after the DSO started being closed by dlclose. */ + lazily_bound_exported_function (); +} |