sysdeps/mach/mips/machine-sp.h

   1 /* Machine-specific function to return the stack pointer.  MIPS version.
   2 Copyright (C) 1994 Free Software Foundation, Inc.
   3 This file is part of the GNU C Library.
   4
   5 The GNU C Library is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU Library General Public License as
   7 published by the Free Software Foundation; either version 2 of the
   8 License, or (at your option) any later version.
   9
  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 Library General Public License for more details.
  14
  15 You should have received a copy of the GNU Library General Public
  16 License along with the GNU C Library; see the file COPYING.LIB.  If
  17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  18 Cambridge, MA 02139, USA.  */
  19
  20 #ifndef _MACHINE_SP_H
  21 #define _MACHINE_SP_H
  22
  23 /* Return the current stack pointer.  */
  24
  25 #ifndef _EXTERN_INLINE
  26 #define _EXTERN_INLINE extern __inline
  27 #endif
  28
  29 _EXTERN_INLINE void *
  30 __thread_stack_pointer (void)
  31 {
  32   void *__sp__;
  33   __asm__ ("move %0,$29" : "=r" (__sp__));
  34   return __sp__;
  35 }
  36
  37 #endif  /* machine-sp.h */
  38