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89baed0b93
This reverts commit 6f85dbf102.
Once this change hits the release branches, it will require relinking
of all statically linked applications before static dlopen works
again, for the majority of updates on release branches: The NEWS file
is regularly updated with bug references, so the __libc_early_init
suffix changes, and static dlopen cannot find the function anymore.
While this ABI check is still technically correct (we do require
rebuilding & relinking after glibc updates to keep static dlopen
working), it is too drastic for stable release branches.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* Invoke the early initialization function in libc.so.
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Copyright (C) 2020-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <assert.h>
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#include <ldsodefs.h>
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#include <libc-early-init.h>
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#include <link.h>
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#include <stddef.h>
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void
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_dl_call_libc_early_init (struct link_map *libc_map, _Bool initial)
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{
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/* There is nothing to do if we did not actually load libc.so. */
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if (libc_map == NULL)
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return;
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const ElfW(Sym) *sym
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= _dl_lookup_direct (libc_map, "__libc_early_init",
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0x069682ac, /* dl_new_hash output. */
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"GLIBC_PRIVATE",
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0x0963cf85); /* _dl_elf_hash output. */
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assert (sym != NULL);
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__typeof (__libc_early_init) *early_init
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= DL_SYMBOL_ADDRESS (libc_map, sym);
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early_init (initial);
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}
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