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03e187a41d
The rseq initialization should happen only for the libc in the base namespace (in the dynamic case) or the statically linked libc. The __libc_multiple_libcs flag does not quite cover this case at present, so this commit introduces a flag argument to __libc_early_init, indicating whether the libc being libc is the primary one (of the main program). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
/* Early initialization of libc.so.
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Copyright (C) 2020 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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#ifndef _LIBC_EARLY_INIT_H
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#define _LIBC_EARLY_INIT_H
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struct link_map;
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/* If LIBC_MAP is not NULL, look up the __libc_early_init symbol in it
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and call this function, with INITIAL as the argument. */
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void _dl_call_libc_early_init (struct link_map *libc_map, _Bool initial)
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attribute_hidden;
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/* In the shared case, this function is defined in libc.so and invoked
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from ld.so (or on the fist static dlopen) after complete relocation
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of a new loaded libc.so, but before user-defined ELF constructors
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run. In the static case, this function is called directly from the
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startup code. If INITIAL is true, the libc being initialized is
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the libc for the main program. INITIAL is false for libcs loaded
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for audit modules, dlmopen, and static dlopen. */
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void __libc_early_init (_Bool initial);
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#endif /* _LIBC_EARLY_INIT_H */
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