mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* Thread-local storage descriptor handling in the ELF dynamic linker.
|
|
x86_64 version.
|
|
Copyright (C) 2005-2017 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
|
|
<http://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
|