glibc/sysdeps/generic/errno.c

33 lines
1.2 KiB
C

/* Definition of `errno' variable. Canonical version.
Copyright (C) 2002 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <tls.h>
#undef errno
#if USE___THREAD
__thread int errno;
#else
/* This differs from plain `int errno;' in that it doesn't create
a common definition, but a plain symbol that resides in .bss,
which can have an alias. */
int errno __attribute__ ((section (".bss")));
strong_alias (errno, _errno)
#endif