glibc/sysdeps/x86_64/dl-tlsdesc.h
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

71 lines
2.0 KiB
C

/* Thread-local storage descriptor handling in the ELF dynamic linker.
x86_64 version.
Copyright (C) 2005-2021 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 <stdint.h>
#ifndef _X86_64_DL_TLSDESC_H
# define _X86_64_DL_TLSDESC_H 1
/* Type used to represent a TLS descriptor in the GOT. */
struct tlsdesc
{
/* Anonymous union is used here to ensure that GOT entry slot is always
8 bytes for both x32 and x86-64. */
union
{
ptrdiff_t (*entry) (struct tlsdesc *on_rax);
uint64_t entry_slot;
};
union
{
void *arg;
uint64_t arg_slot;
};
};
typedef struct dl_tls_index
{
uint64_t ti_module;
uint64_t ti_offset;
} tls_index;
/* Type used as the argument in a TLS descriptor for a symbol that
needs dynamic TLS offsets. */
struct tlsdesc_dynamic_arg
{
tls_index tlsinfo;
size_t gen_count;
};
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_return(struct tlsdesc *on_rax),
_dl_tlsdesc_undefweak(struct tlsdesc *on_rax),
_dl_tlsdesc_resolve_rela(struct tlsdesc *on_rax),
_dl_tlsdesc_resolve_hold(struct tlsdesc *on_rax);
# ifdef SHARED
extern void *_dl_make_tlsdesc_dynamic (struct link_map *map,
size_t ti_offset)
attribute_hidden;
extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic(struct tlsdesc *);
# endif
#endif