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glibc  2.9
tls.h
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00001 /* Copyright (C) 2002 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #ifndef _TLS_H
00021 
00022 /* Additional definitions for <tls.h> on i686 and up.  */
00023 
00024 
00025 /* Macros to load from and store into segment registers.  We can use
00026    the 32-bit instructions.  */
00027 #define TLS_GET_GS() \
00028   ({ int __seg; __asm ("movl %%gs, %0" : "=q" (__seg)); __seg; })
00029 #define TLS_SET_GS(val) \
00030   __asm ("movl %0, %%gs" :: "q" (val))
00031 
00032 
00033 /* Get the full set of definitions.  */
00034 #include "../tls.h"
00035 
00036 #endif /* tls.h */