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author | Florian Weimer <fweimer@redhat.com> | 2023-11-27 11:28:13 +0100 |
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committer | Florian Weimer <fweimer@redhat.com> | 2023-11-27 11:28:13 +0100 |
commit | 78ca44da0160a0b442f0ca1f253e3360f044b2ec (patch) | |
tree | 248cff1b3dc9e22595ad4d9871598bf6bd389c74 /elf/tst-nodeps1-mod.c | |
parent | a74c2e1cbc8673dd7e97aae2f2705392e2ccc3f6 (diff) | |
download | glibc-78ca44da0160a0b442f0ca1f253e3360f044b2ec.tar.gz glibc-78ca44da0160a0b442f0ca1f253e3360f044b2ec.tar.xz glibc-78ca44da0160a0b442f0ca1f253e3360f044b2ec.zip |
elf: Relocate libc.so early during startup and dlmopen (bug 31083)
This makes it more likely that objects without dependencies can use IFUNC resolvers in libc.so. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'elf/tst-nodeps1-mod.c')
-rw-r--r-- | elf/tst-nodeps1-mod.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/elf/tst-nodeps1-mod.c b/elf/tst-nodeps1-mod.c new file mode 100644 index 0000000000..45c8e3c631 --- /dev/null +++ b/elf/tst-nodeps1-mod.c @@ -0,0 +1,25 @@ +/* Test module with no libc.so dependency and string function references. + 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/>. */ + +#include <string.h> + +/* Some references to libc symbols which are likely to have IFUNC + resolvers. If they do not, this module does not exercise bug 31083. */ +void *memcpy_pointer = memcpy; +void *memmove_pointer = memmove; +void *memset_pointer = memset; |