diff options
author | Eric Andersen <andersen@codepoet.org> | 2002-03-01 20:46:26 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2002-03-01 20:46:26 +0000 |
commit | 9cee42f10dbc5b33866ff137b926a74abd7c1a5b (patch) | |
tree | 5211131bde7212ae06d98e9779197cece9b552cc /libc/sysdeps/linux/common/bits/errno.h | |
parent | 5b470cfcc321c5d50b951fa93a769a4a193ccece (diff) |
Major rework of the include files to eliminate redundancy
and to better support each arch. This is a really big patch...
-Erik
Diffstat (limited to 'libc/sysdeps/linux/common/bits/errno.h')
-rw-r--r-- | libc/sysdeps/linux/common/bits/errno.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/errno.h b/libc/sysdeps/linux/common/bits/errno.h new file mode 100644 index 000000000..ac59d4c9d --- /dev/null +++ b/libc/sysdeps/linux/common/bits/errno.h @@ -0,0 +1,60 @@ +/* Error constants. Linux specific version. + Copyright (C) 1996, 1997, 1998, 1999 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. */ + +#ifdef _ERRNO_H + +# undef EDOM +# undef EILSEQ +# undef ERANGE +# include <linux/errno.h> + +/* Linux has no ENOTSUP error code. */ +# define ENOTSUP EOPNOTSUPP + +/* Linux also has no ECANCELED error code. Since it is not used here + we define it to an invalid value. */ +# define ECANCELED 125 + +# ifndef __ASSEMBLER__ +/* We now need a declaration of the `errno' variable. */ +extern int errno; + +/* Function to get address of global `errno' variable. */ +extern int *__errno_location (void) __THROW __attribute__ ((__const__)); + +# if defined _LIBC +/* We wouldn't need a special macro anymore but it is history. */ +# define __set_errno(val) (*__errno_location ()) = (val) +# endif /* _LIBC */ + +# if !defined _LIBC || defined _LIBC_REENTRANT +/* When using threads, errno is a per-thread value. */ +# define errno (*__errno_location ()) +# endif +# endif /* !__ASSEMBLER__ */ +#endif /* _ERRNO_H */ + +#if !defined _ERRNO_H && defined __need_Emath +/* This is ugly but the kernel header is not clean enough. We must + define only the values EDOM, EILSEQ and ERANGE in case __need_Emath is + defined. */ +# define EDOM 33 /* Math argument out of domain of function. */ +# define EILSEQ 84 /* Illegal byte sequence. */ +# define ERANGE 34 /* Math result not representable. */ +#endif /* !_ERRNO_H && __need_Emath */ |