2012-09-17 11:09:12 +02:00
|
|
|
/* $NetBSD: cerror.S,v 1.18 2012/02/27 14:48:34 tsutsui Exp $ */
|
2011-02-14 20:36:03 +01:00
|
|
|
|
|
|
|
|
/*-
|
|
|
|
|
* Copyright (c) 1991, 1993
|
|
|
|
|
* The Regents of the University of California. All rights reserved.
|
|
|
|
|
*
|
|
|
|
|
* This code is derived from software contributed to Berkeley by
|
|
|
|
|
* Ralph Campbell.
|
|
|
|
|
*
|
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
|
* are met:
|
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
|
|
|
* may be used to endorse or promote products derived from this software
|
|
|
|
|
* without specific prior written permission.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
|
* SUCH DAMAGE.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "SYS.h"
|
|
|
|
|
|
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
|
|
|
#if 0
|
|
|
|
|
RCSID("from: @(#)cerror.s 8.1 (Berkeley) 6/16/93")
|
|
|
|
|
#else
|
2012-09-17 11:09:12 +02:00
|
|
|
RCSID("$NetBSD: cerror.S,v 1.18 2012/02/27 14:48:34 tsutsui Exp $")
|
2011-02-14 20:36:03 +01:00
|
|
|
#endif
|
|
|
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
|
|
|
|
|
|
#ifdef PIC
|
2012-09-17 11:09:12 +02:00
|
|
|
.protected __cerror
|
2011-02-14 20:36:03 +01:00
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifdef _REENTRANT
|
|
|
|
|
.globl _C_LABEL(__errno)
|
|
|
|
|
NESTED_NOPROFILE(__cerror, CALLFRAME_SIZ, ra)
|
|
|
|
|
.mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
|
|
|
|
|
PIC_PROLOGUE(__cerror)
|
|
|
|
|
PTR_SUBU sp, CALLFRAME_SIZ
|
|
|
|
|
PTR_S ra, CALLFRAME_RA(sp)
|
|
|
|
|
INT_S v0, CALLFRAME_S0(sp) # save errno value
|
|
|
|
|
|
|
|
|
|
SAVE_GP(CALLFRAME_GP)
|
|
|
|
|
|
|
|
|
|
PTR_LA t9, _C_LABEL(__errno) # locate address of errno
|
|
|
|
|
RESTORE_GP64 # restore GP (from t3)
|
|
|
|
|
jalr t9 # __errno()
|
|
|
|
|
|
|
|
|
|
INT_L t0, CALLFRAME_S0(sp)
|
|
|
|
|
PTR_L ra, CALLFRAME_RA(sp)
|
|
|
|
|
INT_S t0, 0(v0) # update errno value
|
|
|
|
|
PTR_ADDU sp, CALLFRAME_SIZ
|
|
|
|
|
li v0, -1
|
|
|
|
|
li v1, -1
|
|
|
|
|
j ra # GP has been restored.
|
|
|
|
|
END(__cerror)
|
|
|
|
|
#else
|
|
|
|
|
.globl _C_LABEL(errno)
|
|
|
|
|
LEAF_NOPROFILE(__cerror)
|
|
|
|
|
PIC_PROLOGUE(__cerror)
|
|
|
|
|
INT_S v0, _C_LABEL(errno)
|
|
|
|
|
li v0, -1
|
|
|
|
|
li v1, -1
|
|
|
|
|
PIC_RETURN()
|
|
|
|
|
END(__cerror)
|
|
|
|
|
#endif /* _REENTRANT */
|
