mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/* Thread-local storage handling in the ELF dynamic linker. i386 version.
|
|
Copyright (C) 2002-2018 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/>. */
|
|
|
|
|
|
/* Type used for the representation of TLS information in the GOT. */
|
|
typedef struct dl_tls_index
|
|
{
|
|
unsigned long int ti_module;
|
|
unsigned long int ti_offset;
|
|
} tls_index;
|
|
|
|
|
|
#ifdef SHARED
|
|
/* This is the prototype for the GNU version. */
|
|
extern void *___tls_get_addr (tls_index *ti)
|
|
__attribute__ ((__regparm__ (1)));
|
|
extern void *___tls_get_addr_internal (tls_index *ti)
|
|
__attribute__ ((__regparm__ (1))) attribute_hidden;
|
|
|
|
# if IS_IN (rtld)
|
|
/* The special thing about the x86 TLS ABI is that we have two
|
|
variants of the __tls_get_addr function with different calling
|
|
conventions. The GNU version, which we are mostly concerned here,
|
|
takes the parameter in a register. The name is changed by adding
|
|
an additional underscore at the beginning. The Sun version uses
|
|
the normal calling convention. */
|
|
void *
|
|
__tls_get_addr (tls_index *ti)
|
|
{
|
|
return ___tls_get_addr_internal (ti);
|
|
}
|
|
|
|
|
|
/* Prepare using the definition of __tls_get_addr in the generic
|
|
version of this file. */
|
|
# define __tls_get_addr __attribute__ ((__regparm__ (1))) ___tls_get_addr
|
|
strong_alias (___tls_get_addr, ___tls_get_addr_internal)
|
|
rtld_hidden_proto (___tls_get_addr)
|
|
rtld_hidden_def (___tls_get_addr)
|
|
#else
|
|
|
|
/* Users should get the better interface. */
|
|
# define __tls_get_addr ___tls_get_addr
|
|
|
|
# endif
|
|
#endif
|