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glibc  2.9
machine-sp.h
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00001 /* Machine-specific function to return the stack pointer.  Alpha version.
00002    Copyright (C) 1994, 1997, 2007 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
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 _MACHINE_SP_H
00021 #define _MACHINE_SP_H
00022 
00023 /* Return the current stack pointer.  */
00024 
00025 #ifndef _EXTERN_INLINE
00026 #define _EXTERN_INLINE __extern_inline
00027 #endif
00028 
00029 _EXTERN_INLINE void *
00030 __thread_stack_pointer (void)
00031 {
00032   register void *__sp__ __asm__ ("$30");
00033   return __sp__;
00034 }
00035 
00036 #endif /* machine-sp.h */