Home | History | Annotate | Line # | Download | only in sys
cerror.S revision 1.11 
      1 /*	$NetBSD: cerror.S,v 1.11 2000/01/23 23:38:32 mycroft Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * William Jolitz.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	from: @(#)cerror.s	5.1 (Berkeley) 4/23/90
     39  */
     40 
     41 #include <machine/asm.h>
     42 #if defined(SYSLIBC_SCCS) && !defined(lint)
     43 	RCSID("$NetBSD: cerror.S,v 1.11 2000/01/23 23:38:32 mycroft Exp $")
     44 #endif /* SYSLIBC_SCCS and not lint */
     45 
     46 #include "SYS.h"
     47 
     48 #ifdef _REENTRANT
     49 	.globl	_C_LABEL(__errno)
     50 #else
     51 	.globl	_C_LABEL(errno)
     52 #endif
     53 _ENTRY(CERROR)
     54 #ifdef PIC
     55 	/* This is PIC_PROLOGUE without the pushl at the beginning.  The stub
     56 	   already did that. */
     57 	call	1f
     58 1:
     59 	popl	%ebx
     60 	addl	$_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
     61 #endif
     62 
     63 #ifdef _REENTRANT
     64 	pushl	%eax
     65 # ifdef PIC
     66 	call	PIC_PLT(_C_LABEL(__errno))
     67 # else
     68 	call	_C_LABEL(__errno)
     69 # endif /* PIC */
     70 	popl	(%eax)
     71 #else
     72 # ifdef PIC
     73 	movl	PIC_GOT(_C_LABEL(errno)),%ecx
     74 	movl	%eax,(%ecx)
     75 # else
     76 	movl	%eax,_C_LABEL(errno)
     77 # endif /* PIC */
     78 #endif /* _REENTRANT */
     79 
     80 #ifdef PIC
     81 	PIC_EPILOGUE
     82 #endif
     83 	movl	$-1,%eax
     84 	movl	$-1,%edx
     85 	ret
     86