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/* Thread-local storage handling in the ELF dynamic linker. Xtensa version.
Copyright (C) 2013 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; see the file COPYING.LIB. If
not, see <http://www.gnu.org/licenses/>. */
#ifndef _XTENSA_DL_TLS_H
#define _XTENSA_DL_TLS_H 1
/* Type used for the representation of TLS information in the GOT. */
typedef struct
{
unsigned long int ti_module;
unsigned long int ti_offset;
} tls_index;
extern void *__tls_get_addr (tls_index *ti);
/* 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;
};
#ifdef __FDPIC__
/* Type used to represent a TLS descriptor. */
struct tlsdesc
{
ptrdiff_t (*entry)(struct tlsdesc *);
void *argument;
};
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_return(struct tlsdesc *);
extern void *_dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_dynamic(struct tlsdesc *);
#else
/* Type used to represent a TLS descriptor. */
struct tlsdesc
{
union
{
void *pointer;
long value;
} argument;
ptrdiff_t (*entry)(struct tlsdesc *);
};
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_return(struct tlsdesc_dynamic_arg *);
extern void *_dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset);
extern ptrdiff_t attribute_hidden
_dl_tlsdesc_dynamic(struct tlsdesc_dynamic_arg *);
#endif
#endif
/* Value used for dtv entries for which the allocation is delayed. */
#define TLS_DTV_UNALLOCATED ((void *) -1l)
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