From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/mach/i386/machine-sp.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 sysdeps/mach/i386/machine-sp.h (limited to 'sysdeps/mach/i386/machine-sp.h') diff --git a/sysdeps/mach/i386/machine-sp.h b/sysdeps/mach/i386/machine-sp.h new file mode 100644 index 0000000000..7fd15413f5 --- /dev/null +++ b/sysdeps/mach/i386/machine-sp.h @@ -0,0 +1,38 @@ +/* Machine-specific function to return the stack pointer. i386 version. +Copyright (C) 1994 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#ifndef _MACHINE_SP_H +#define _MACHINE_SP_H + +/* Return the current stack pointer. */ + +#ifndef _EXTERN_INLINE +#define _EXTERN_INLINE extern __inline +#endif + +_EXTERN_INLINE void * +__thread_stack_pointer (void) +{ + void *__sp__; + __asm__ ("movl %%esp, %0" : "=r" (__sp__)); + return __sp__; +} + +#endif /* machine-sp.h */ + -- cgit 1.4.1