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| author | Florian Weimer <fweimer@redhat.com> | 2019-11-13 15:44:56 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2019-11-27 20:55:35 +0100 |
| commit | f63b73814f74032c0e5d0a83300e3d864ef905e5 (patch) | |
| tree | dac6303d0f785a7103ede6546011bf430a42e236 /elf/tst-dlopenfaillinkmod.c | |
| parent | a509eb117fac1d764b15eba64993f4bdb63d7f3c (diff) | |
| download | glibc-f63b73814f74032c0e5d0a83300e3d864ef905e5.tar.gz glibc-f63b73814f74032c0e5d0a83300e3d864ef905e5.tar.xz glibc-f63b73814f74032c0e5d0a83300e3d864ef905e5.zip | |
Remove all loaded objects if dlopen fails, ignoring NODELETE [BZ #20839]
This introduces a “pending NODELETE” state in the link map, which is flipped to the persistent NODELETE state late in dlopen, via activate_nodelete. During initial relocation, symbol binding records pending NODELETE state only. dlclose ignores pending NODELETE state. Taken together, this results that a partially completed dlopen is rolled back completely because new NODELETE mappings are unloaded. Tested on x86_64-linux-gnu and i386-linux-gnu. Change-Id: Ib2a3d86af6f92d75baca65431d74783ee0dbc292
Diffstat (limited to 'elf/tst-dlopenfaillinkmod.c')
| -rw-r--r-- | elf/tst-dlopenfaillinkmod.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/elf/tst-dlopenfaillinkmod.c b/elf/tst-dlopenfaillinkmod.c new file mode 100644 index 0000000000..3b14b02bc9 --- /dev/null +++ b/elf/tst-dlopenfaillinkmod.c @@ -0,0 +1,17 @@ +/* Empty module with a soname which is not available at run time. + Copyright (C) 2019 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/>. */ |