1 /* Thread-local storage handling in the ELF dynamic linker. i386 version.
2 Copyright (C) 2002, 2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 /* Type used for the representation of TLS information in the GOT. */
23 unsigned long int ti_module;
24 unsigned long int ti_offset;
28 extern void *__tls_get_addr (tls_index *ti);
31 /* This is the prototype for the GNU version. */
32 extern void *___tls_get_addr (tls_index *ti)
33 __attribute__ ((__regparm__ (1)));
34 extern void *___tls_get_addr_internal (tls_index *ti)
35 __attribute__ ((__regparm__ (1))) attribute_hidden;
38 /* The special thing about the x86 TLS ABI is that we have two
39 variants of the __tls_get_addr function with different calling
40 conventions. The GNU version, which we are mostly concerned here,
41 takes the parameter in a register. The name is changed by adding
42 an additional underscore at the beginning. The Sun version uses
43 the normal calling convention. */
45 __tls_get_addr (tls_index *ti)
47 return ___tls_get_addr_internal (ti);
51 /* Prepare using the definition of __tls_get_addr in the generic
52 version of this file. */
53 # define __tls_get_addr __attribute__ ((__regparm__ (1))) ___tls_get_addr
54 strong_alias (___tls_get_addr, ___tls_get_addr_internal)
57 /* Users should get the better interface. */
58 # define __tls_get_addr ___tls_get_addr