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authorEric Andersen <andersen@codepoet.org>2001-04-06 20:28:45 +0000
committerEric Andersen <andersen@codepoet.org>2001-04-06 20:28:45 +0000
commit6278781655261a5011376b2fa2600996e32ca889 (patch)
tree11783e71b36c8c546c4dc02dff355b0f2478978b /libc/sysdeps/linux/arm/bits/errno.h
parenta704ccaa5232184844cd67315951b39f85a6ba04 (diff)
Fix include/errno.h to not use kernel header, and instead use bits/errno.h.
This required we use _LIBC instead of __LIBC__ to be consistent with glibc. This had some sideffects in sys/syscalls.h. While fixing things, I made everything use __set_errno() for (eventual) thread support. -Erik
Diffstat (limited to 'libc/sysdeps/linux/arm/bits/errno.h')
-rw-r--r--libc/sysdeps/linux/arm/bits/errno.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arm/bits/errno.h b/libc/sysdeps/linux/arm/bits/errno.h
new file mode 100644
index 000000000..6bfd44e0c
--- /dev/null
+++ b/libc/sysdeps/linux/arm/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 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. */
+
+#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 */