glibc/sysdeps/aarch64/dl-tlsdesc.h

69 lines
1.9 KiB
C

/* Thread-local storage descriptor handling in the ELF dynamic linker.
AArch64 version.
Copyright (C) 2011-2015 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/>. */
#ifndef _AARCH64_DL_TLSDESC_H
#define _AARCH64_DL_TLSDESC_H 1
/* Type used to represent a TLS descriptor in the GOT. */
struct tlsdesc
{
ptrdiff_t (*entry) (struct tlsdesc *);
void *arg;
};
typedef struct dl_tls_index
{
unsigned long int ti_module;
unsigned long int 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 *);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_return_lazy (struct tlsdesc *);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_undefweak (struct tlsdesc *);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_resolve_rela (struct tlsdesc *);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_resolve_hold (struct tlsdesc *);
# ifdef SHARED
extern void *internal_function _dl_make_tlsdesc_dynamic (struct link_map *,
size_t);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_dynamic (struct tlsdesc *);
#endif
#endif