glibc/sysdeps/unix/mips/sysdep.S
Ulrich Drepper db72c1e46f Update.
* sysdeps/unix/mips/sysdep.h: Use __syscall_error.

	* sysdeps/unix/mips/sysdep.S: Rewrite, don't declare errno here.
	Patches by Ralf Baechle <ralf@uni-koblenz.de>

1999-08-24  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
1999-08-24 21:00:04 +00:00

102 lines
2.4 KiB
ArmAsm

/* Copyright (C) 1992,93,94,97,98,99 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Brendan Kehoe (brendan@zen.org).
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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#define _ERRNO_H
#include <bits/errno.h>
#ifdef _LIBC_REENTRANT
ENTRY(__syscall_error)
#ifdef PIC
.set noreorder
.set noat
move $1, $31
bltzal $0, 0f
nop
0: .cpload $31
move $31, $1
.set at
.set reorder
#endif
subu sp, 32
#ifdef __PIC__
.cprestore 16
#endif
sw v0, 20(sp)
sw ra, 24(sp)
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
/* We translate the system's EWOULDBLOCK error into EAGAIN.
The GNU C library always defines EWOULDBLOCK==EAGAIN.
EWOULDBLOCK_sys is the original number. */
bne v0, EWOULDBLOCK_sys, skip
nop
li v0, EAGAIN
skip:
#endif
/* Store it in the "real" variable ... */
sw v0, errno
/* Find our per-thread errno address */
jal __errno_location
/* Store the error value. */
lw t0, 20(sp)
sw t0, 0(v0)
/* And just kick back a -1. */
lw ra, 24(sp)
addiu sp, 32
li v0, -1
j ra
END(__syscall_error)
#else /* _LIBC_REENTRANT */
ENTRY(__syscall_error)
#ifdef __PIC__
.set noreorder
.set noat
move $1, $31
bltzal $0, 0f
nop
0: .cpload $31
move $31, $1
.set at
.set reorder
#endif
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
/* We translate the system's EWOULDBLOCK error into EAGAIN.
The GNU C library always defines EWOULDBLOCK==EAGAIN.
EWOULDBLOCK_sys is the original number. */
bne v0, EWOULDBLOCK_sys, skip
li v0, EAGAIN
skip:
#endif
/* Store it in errno... */
sw v0, errno
/* And just kick back a -1. */
li v0, -1
j ra
END(__syscall_error)
#endif /* _LIBC_REENTRANT */