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/* Copyright (C) 1996 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. */
/* Because the Linux version is in fact m68k/ELF and the start.? file
for this system (sysdeps/m68k/elf/start.S) is also used by The Hurd
and therefore this files must not contain the definition of the
`errno' variable (I don't know why, ask Roland), we have to define
it somewhere else.
...and this place is here. */
.bss
.globl errno
.type errno,@object
errno: .space 4
.size errno,4
.globl _errno
.type _errno,@object
_errno = errno /* This name is expected by hj libc.so.5 startup code. */
.text
/* The following code is not used at all in the shared library.
The PIC system call stubs set errno themselves. */
#ifndef PIC
#include <sysdep.h>
#define _ERRNO_H
#include <errnos.h>
.globl errno
.globl __syscall_error
/* The syscall stubs jump here when they detect an error. */
.globl __syscall_error
__syscall_error:
neg.l %d0
#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. */
move.l #EWOULDBLOCK_sys, %d1
cmp.l %d0, %d1
jne 1f
move.l #EAGAIN, %d0
1:
#endif
move.l %d0, errno
move.l #-1, %d0
/* Copy return value to %a0 for syscalls that are declared to
return a pointer. */
move.l %d0, %a0
rts
#endif /* PIC */
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