--- /dev/null
+#ifndef CYGONCE_HAL_BASETYPE_H
+# define CYGONCE_HAL_BASETYPE_H
+
+//======================================================================
+//
+// basetype.h
+//
+// HAL emulation for the host-side infrastructure.
+//
+//======================================================================
+//####COPYRIGHTBEGIN####
+//
+// ----------------------------------------------------------------------------
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
+//
+// This file is part of the eCos host tools.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 of the License, or (at your option)
+// any later version.
+//
+// This program 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 General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// ----------------------------------------------------------------------------
+//
+//####COPYRIGHTEND####
+//======================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): bartv
+// Contact(s): bartv
+// Date: 1998/07/13
+// Version: 0.01
+//
+//####DESCRIPTIONEND####
+//======================================================================
+
+// The purpose of this header file is to replicate the functionality
+// provided by <cyg/hal/basetype.h> on the target side. Essentially
+// this file has to define endianness. Optionally it can also define
+// the correct data types for e.g. cyg_count32 etc.
+//
+// On the host side portability is achieved by means of autoconf and
+// feature tests, as opposed to re-implementing the HAL for each
+// platform. In particular there will be a generated header file
+// <pkgconf/hostinfra.h> which gets filled in during the configure
+// process.
+//
+// It has been decided that the host side should use exactly the same
+// infrastructure header files as the target side (although extra
+// functionality may be defined in these header files where
+// appropriate). This means that the host side needs to provide
+// <cyg/hal/basetype.h>, even though it does not contain a HAL.
+//
+// This implementation of <cyg/hal/basetype.h> reads in the
+// configuration header generated by the configure script and adapts
+// this information into whatever is required by
+// <cyg/infra/cyg_type.h>.
+
+#ifndef CYGONCE_PKGCONF_INFRA_H
+# include <pkgconf/infra.h>
+#endif
+
+// The autoconf test for endianness will result in a #define for
+// LITTLE_ENDIAN_HOST on appropriate platforms. This needs to be
+// converted into a definition of CYG_BYTEORDER as per the target-side
+// HAL headers.
+
+#ifdef WORDS_BIGENDIAN
+# define CYG_BYTEORDER CYG_MSBFIRST
+#else
+# define CYG_BYTEORDER CYG_LSBFIRST
+#endif
+
+// The default definitions for cyg_halint8/16/32 and cyg_halcount8/16/32
+// should be fine (although eventually we may come across a platform
+// where int's are 64 bit). 64 bit arithmetic is a bit more of a problem.
+// on the majority of systems so there is an autoconf test which will
+// generate appropriate #define's for cyg_halint64 and cyg_halcount64,
+// which means this header file does not to do anything more.
+// cyg_halbool and cyg_halatomic should both be ok.
+
+
+// Any symbols defined in <cyg/infra/config.h> which have been processed
+// here should no longer be of any interest, and in the interests of
+// reducing name space pollution they get undef'ed here.
+#undef WORDS_BIGENDIAN
+
+#endif // CYGONCE_HAL_BASETYPE_H
+// End of basetype.h
projects / karo-tx-redboot.git / blobdiff