[uClibc-cvs] uClibc/libc/sysdeps/linux/sparc fpu_control.h, NONE, 1.1 Makefile, 1.13, 1.14

[Erik Andersen]

Update of /var/cvs/uClibc/libc/sysdeps/linux/sparc
In directory winder:/tmp/cvs-serv31511/sparc

Modified Files:
	Makefile 
Added Files:
	fpu_control.h 
Log Message:
Patch from Atsushi Nemoto (with some additions):

Current uClibc contains only one fpu_control.h and it is i386 version.
This is a patch to use platform specific fpu_control.h.  All new files
come from glibc 2.3.2.  This patch is against 0.9.21 but also can be
applied to CVS as is.



Index: Makefile
===================================================================
RCS file: /var/cvs/uClibc/libc/sysdeps/linux/sparc/Makefile,v
retrieving revision 1.13
retrieving revision 1.14
diff -u -d -r1.13 -r1.14
--- Makefile	23 Jan 2003 17:55:26 -0000	1.13
+++ Makefile	8 Oct 2003 19:30:43 -0000	1.14
@@ -55,6 +55,7 @@
 	$(STRIPTOOL) -x -R .note -R .comment $*.o
 
 headers:
+	cd $(TOPDIR)/include && ln -fs ../libc/sysdeps/linux/sparc/fpu_control.h .
 
 clean:
 	rm -f *.[oa] *~ core

--- NEW FILE: fpu_control.h ---
/* FPU control word bits.  SPARC version.
   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Miguel de Icaza

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _FPU_CONTROL_H
#define _FPU_CONTROL_H	1


#include <features.h>
#include <bits/wordsize.h>

/* masking of interrupts */
#define _FPU_MASK_IM  0x08000000
#define _FPU_MASK_OM  0x04000000
#define _FPU_MASK_UM  0x02000000
#define _FPU_MASK_ZM  0x01000000
#define _FPU_MASK_PM  0x00800000

/* precision control */
#define _FPU_EXTENDED 0x00000000     /* RECOMMENDED */
#define _FPU_DOUBLE   0x20000000
#define _FPU_80BIT    0x30000000
#define _FPU_SINGLE   0x10000000     /* DO NOT USE */

/* rounding control / Sparc */
#define _FPU_RC_DOWN    0xc0000000
#define _FPU_RC_UP      0x80000000
#define _FPU_RC_ZERO    0x40000000
#define _FPU_RC_NEAREST 0x0        /* RECOMMENDED */

#define _FPU_RESERVED   0x30300000  /* Reserved bits in cw */


/* Now two recommended cw */

/* Linux and IEEE default:
     - extended precision
     - rounding to nearest
     - no exceptions  */
#define _FPU_DEFAULT  0x0
#define _FPU_IEEE     0x0

/* Type of the control word.  */
typedef unsigned long int fpu_control_t;

#if __WORDSIZE == 64
# define _FPU_GETCW(cw) __asm__ ("stx %%fsr,%0" : "=m" (*&cw))
# define _FPU_SETCW(cw) __asm__ ("ldx %0,%%fsr" : : "m" (*&cw))
#else
# define _FPU_GETCW(cw) __asm__ ("st %%fsr,%0" : "=m" (*&cw))
# define _FPU_SETCW(cw) __asm__ ("ld %0,%%fsr" : : "m" (*&cw))
#endif

/* Default control word set at startup.  */
extern fpu_control_t __fpu_control;

#endif	/* fpu_control.h */