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/* Copyright (C) 1995, 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. */
#include <sysdep.h>
/* Because the Linux version is in fact i386/ELF and the start.? file
for this system (sysdeps/i386/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
.size errno,4
errno: .zero 4
.globl _errno
.type _errno,@object
_errno = errno /* This name is expected by hj libc.so.5 startup code. */
.globl __errno
.type __errno,@object
__errno = errno /* This name is expected by the MT code. */
.text
/* The following code is only used in the shared library when we
compile the reentrant version. Otherwise each system call defines
each own version. */
#ifndef PIC
/* The syscall stubs jump here when they detect an error.
The code for Linux is almost identical to the canonical Unix/i386
code, except that the error number in %eax is negated. */
ENTRY (__syscall_error)
negl %eax
#define __syscall_error __syscall_error_1
#include <sysdeps/unix/i386/sysdep.S>
#endif /* !PIC */
ENTRY (__errno_location)
#ifdef PIC
call .L2
.L2: popl %ecx
addl $_GLOBAL_OFFSET_TABLE_+[.-.L2], %ecx
movl errno@GOT(%ecx), %eax
#else
movl $errno, %eax
#endif
ret
.size __errno_location, .-__errno_location
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