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1254 |
phoenix |
#ifndef CYGONCE_INFRA_CYG_TYPE_H
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#define CYGONCE_INFRA_CYG_TYPE_H
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//==========================================================================
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//
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// cyg_type.h
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//
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// Standard types, and some useful coding macros.
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): nickg from an original by hmt
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// Contributors: nickg
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// Date: 1997-09-08
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// Purpose: share unambiguously sized types.
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// Description: we typedef [cyg_][u]int8,16,32 &c for general use.
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// Usage: #include "cyg/infra/cyg_type.h"
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// ...
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// cyg_int32 my_32bit_integer;
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//
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//####DESCRIPTIONEND####
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//
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#include <stddef.h> // Definition of NULL from the compiler
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// -------------------------------------------------------------------------
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// Some useful macros. These are defined here by default.
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// __externC is used in mixed C/C++ headers to force C linkage on an external
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// definition. It avoids having to put all sorts of ifdefs in.
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#ifdef __cplusplus
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# define __externC extern "C"
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#else
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# define __externC extern
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#endif
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// Also define externC for now - but it is deprecated
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#define externC __externC
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// -------------------------------------------------------------------------
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// The header <basetype.h> defines the base types used here. It is
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// supplied either by the target architecture HAL, or by the host
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// porting kit. They are all defined as macros, and only those that
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// make choices other than the defaults given below need be defined.
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#define CYG_LSBFIRST 1234
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#define CYG_MSBFIRST 4321
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#include <cyg/hal/basetype.h>
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#if (CYG_BYTEORDER != CYG_LSBFIRST) && (CYG_BYTEORDER != CYG_MSBFIRST)
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# error You must define CYG_BYTEORDER to equal CYG_LSBFIRST or CYG_MSBFIRST
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#endif
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#ifndef CYG_DOUBLE_BYTEORDER
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#define CYG_DOUBLE_BYTEORDER CYG_BYTEORDER
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#endif
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#ifndef cyg_halint8
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# define cyg_halint8 char
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#endif
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#ifndef cyg_halint16
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# define cyg_halint16 short
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#endif
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#ifndef cyg_halint32
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# define cyg_halint32 int
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#endif
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#ifndef cyg_halint64
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# define cyg_halint64 long long
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#endif
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#ifndef cyg_halcount8
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# define cyg_halcount8 int
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#endif
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#ifndef cyg_halcount16
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# define cyg_halcount16 int
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#endif
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#ifndef cyg_halcount32
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# define cyg_halcount32 int
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#endif
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#ifndef cyg_halcount64
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# define cyg_halcount64 long long
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#endif
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#ifndef cyg_haladdress
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# define cyg_haladdress cyg_uint32
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#endif
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#ifndef cyg_haladdrword
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# define cyg_haladdrword cyg_uint32
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#endif
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#ifndef cyg_halbool
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# define cyg_halbool int
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#endif
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#ifndef cyg_halatomic
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# define cyg_halatomic cyg_halint8
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#endif
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// -------------------------------------------------------------------------
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// Provide a default architecture alignment
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// This may be overridden in basetype.h if necessary.
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// These should be straightforward numbers to allow use in assembly.
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#ifndef CYGARC_ALIGNMENT
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# define CYGARC_ALIGNMENT 8
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#endif
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// And corresponding power of two alignment
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#ifndef CYGARC_P2ALIGNMENT
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# define CYGARC_P2ALIGNMENT 3
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#endif
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#if (CYGARC_ALIGNMENT) != (1 << CYGARC_P2ALIGNMENT)
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# error "Inconsistent CYGARC_ALIGNMENT and CYGARC_P2ALIGNMENT values"
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#endif
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// -------------------------------------------------------------------------
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// The obvious few that compilers may define for you.
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// But in case they don't:
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#ifndef NULL
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# define NULL 0
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#endif
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#ifndef __cplusplus
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typedef cyg_halbool bool;
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# ifndef false
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# define false 0
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# endif
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# ifndef true
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# define true (!false)
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# endif
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#endif
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// -------------------------------------------------------------------------
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// Allow creation of procedure-like macros that are a single statement,
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// and must be followed by a semi-colon
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#define CYG_MACRO_START do {
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#define CYG_MACRO_END } while (0)
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#define CYG_EMPTY_STATEMENT CYG_MACRO_START CYG_MACRO_END
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#define CYG_UNUSED_PARAM( _type_, _name_ ) CYG_MACRO_START \
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_type_ __tmp1 = (_name_); \
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_type_ __tmp2 = __tmp1; \
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__tmp1 = __tmp2; \
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CYG_MACRO_END
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// -------------------------------------------------------------------------
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// Reference a symbol without explicitly making use of it. Ensures that
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// the object containing the symbol will be included when linking.
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#define CYG_REFERENCE_OBJECT(__object__) \
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CYG_MACRO_START \
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static void *__cygvar_discard_me__ __attribute__ ((unused)) = \
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&(__object__); \
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CYG_MACRO_END
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// -------------------------------------------------------------------------
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// Define basic types for using integers in memory and structures;
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// depends on compiler defaults and CPU type.
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typedef unsigned cyg_halint8 cyg_uint8 ;
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typedef signed cyg_halint8 cyg_int8 ;
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typedef unsigned cyg_halint16 cyg_uint16 ;
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typedef signed cyg_halint16 cyg_int16 ;
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typedef unsigned cyg_halint32 cyg_uint32 ;
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typedef signed cyg_halint32 cyg_int32 ;
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typedef unsigned cyg_halint64 cyg_uint64 ;
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typedef signed cyg_halint64 cyg_int64 ;
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typedef cyg_halbool cyg_bool ;
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// -------------------------------------------------------------------------
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// Define types for using integers in registers for looping and the like;
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// depends on CPU type, choose what it is most comfortable with, with at
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// least the range required.
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typedef unsigned cyg_halcount8 cyg_ucount8 ;
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typedef signed cyg_halcount8 cyg_count8 ;
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typedef unsigned cyg_halcount16 cyg_ucount16 ;
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typedef signed cyg_halcount16 cyg_count16 ;
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typedef unsigned cyg_halcount32 cyg_ucount32 ;
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typedef signed cyg_halcount32 cyg_count32 ;
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typedef unsigned cyg_halcount64 cyg_ucount64 ;
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typedef signed cyg_halcount64 cyg_count64 ;
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// -------------------------------------------------------------------------
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// Define a type to be used for atomic accesses. This type is guaranteed
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// to be read or written in a single uninterruptible operation. This type
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// is at least a single byte.
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typedef volatile unsigned cyg_halatomic cyg_atomic;
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typedef volatile unsigned cyg_halatomic CYG_ATOMIC;
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// -------------------------------------------------------------------------
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// Define types for access plain, on-the-metal memory or devices.
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typedef cyg_uint32 CYG_WORD;
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typedef cyg_uint8 CYG_BYTE;
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typedef cyg_uint16 CYG_WORD16;
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typedef cyg_uint32 CYG_WORD32;
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typedef cyg_uint64 CYG_WORD64;
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typedef cyg_haladdress CYG_ADDRESS;
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typedef cyg_haladdrword CYG_ADDRWORD;
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// -------------------------------------------------------------------------
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// Constructor ordering macros. These are added as annotations to all
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// static objects to order the constuctors appropriately.
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#if defined(__cplusplus) && defined(__GNUC__) && \
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!defined(CYGBLD_ATTRIB_INIT_PRI)
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# define CYGBLD_ATTRIB_INIT_PRI( _pri_ ) __attribute__((init_priority(_pri_)))
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#elif !defined(CYGBLD_ATTRIB_INIT_PRI)
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// FIXME: should maybe just bomb out if this is attempted anywhere else?
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// Not sure
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# define CYGBLD_ATTRIB_INIT_PRI( _pri_ )
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#endif
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// The following will be removed eventually as it doesn't allow the use of
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// e.g. pri+5 format
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#define CYG_INIT_PRIORITY( _pri_ ) CYGBLD_ATTRIB_INIT_PRI( CYG_INIT_##_pri_ )
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#define CYGBLD_ATTRIB_INIT_BEFORE( _pri_ ) CYGBLD_ATTRIB_INIT_PRI(_pri_-100)
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#define CYGBLD_ATTRIB_INIT_AFTER( _pri_ ) CYGBLD_ATTRIB_INIT_PRI(_pri_+100)
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#define CYG_INIT_HAL 10000
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#define CYG_INIT_SCHEDULER 11000
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#define CYG_INIT_INTERRUPTS 12000
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#define CYG_INIT_DRIVERS 13000
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#define CYG_INIT_CLOCK 14000
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#define CYG_INIT_IDLE_THREAD 15000
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#define CYG_INIT_THREADS 16000
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#define CYG_INIT_KERNEL 40000
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#define CYG_INIT_MEMALLOC 47000
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#define CYG_INIT_IO 49000
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#define CYG_INIT_IO_FS 50000
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#define CYG_INIT_LIBC 52000
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#define CYG_INIT_COMPAT 55000
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#define CYG_INIT_APPLICATION 60000
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#define CYG_INIT_PREDEFAULT 65534
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#define CYG_INIT_DEFAULT 65535
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// -------------------------------------------------------------------------
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// Label name macros. Some toolsets generate labels with initial
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// underscores and others don't. CYG_LABEL_NAME should be used on
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// labels in C/C++ code that are defined in assembly code or linker
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// scripts. CYG_LABEL_DEFN is for use in assembly code and linker
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// scripts where we need to manufacture labels that can be used from
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// C/C++.
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// These are default implementations that should work for most targets.
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// They may be overridden in basetype.h if necessary.
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#ifndef CYG_LABEL_NAME
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#define CYG_LABEL_NAME(_name_) _name_
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#endif
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#ifndef CYG_LABEL_DEFN
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#define CYG_LABEL_DEFN(_label) _label
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#endif
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// -------------------------------------------------------------------------
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// COMPILER-SPECIFIC STUFF
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#ifdef __GNUC__
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// Force a 'C' routine to be called like a 'C++' contructor
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# if !defined(CYGBLD_ATTRIB_CONSTRUCTOR)
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# define CYGBLD_ATTRIB_CONSTRUCTOR __attribute__((constructor))
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# endif
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320 |
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// Define a compiler-specific rune for saying a function doesn't return
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# if !defined(CYGBLD_ATTRIB_NORET)
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# define CYGBLD_ATTRIB_NORET __attribute__((noreturn))
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# endif
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325 |
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326 |
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// How to define weak symbols - this is only relevant for ELF and a.out,
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// but that won't be a problem for eCos
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# if !defined(CYGBLD_ATTRIB_WEAK)
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# define CYGBLD_ATTRIB_WEAK __attribute__ ((weak))
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# endif
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331 |
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332 |
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// How to define alias to symbols. Just pass in the symbol itself, not
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// the string name of the symbol
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# if !defined(CYGBLD_ATTRIB_ALIAS)
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# define CYGBLD_ATTRIB_ALIAS(__symbol__) \
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__attribute__ ((alias (#__symbol__)))
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# endif
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338 |
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339 |
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// This effectively does the reverse of the previous macro. It defines
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// a name that the attributed variable or function will actually have
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341 |
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// in assembler.
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342 |
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# if !defined(CYGBLD_ATTRIB_ASM_ALIAS)
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# define __Str(x) #x
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# define __Xstr(x) __Str(x)
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# define CYGBLD_ATTRIB_ASM_ALIAS(__symbol__) \
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__asm__ ( __Xstr( CYG_LABEL_DEFN( __symbol__ ) ) )
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# endif
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348 |
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349 |
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// Shows that a function returns the same value when given the same args, but
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350 |
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// note this can't be used if there are pointer args
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351 |
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# if !defined(CYGBLD_ATTRIB_CONST)
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352 |
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# define CYGBLD_ATTRIB_CONST __attribute__((const))
|
353 |
|
|
#endif
|
354 |
|
|
|
355 |
|
|
// Assign a defined variable to a specific section
|
356 |
|
|
# if !defined(CYGBLD_ATTRIB_SECTION)
|
357 |
|
|
# define CYGBLD_ATTRIB_SECTION(__sect__) __attribute__((section (__sect__)))
|
358 |
|
|
# endif
|
359 |
|
|
|
360 |
|
|
// Give a type or object explicit minimum alignment
|
361 |
|
|
# if !defined(CYGBLD_ATTRIB_ALIGN)
|
362 |
|
|
# define CYGBLD_ATTRIB_ALIGN(__align__) __attribute__((aligned(__align__)))
|
363 |
|
|
# endif
|
364 |
|
|
|
365 |
|
|
// Teach compiler how to check format of printf-like functions
|
366 |
|
|
# define CYGBLD_ATTRIB_PRINTF_FORMAT(__format__, __args__) \
|
367 |
|
|
__attribute__((format (printf, __format__, __args__)))
|
368 |
|
|
|
369 |
|
|
#else // non-GNU
|
370 |
|
|
|
371 |
|
|
# define CYGBLD_ATTRIB_CONSTRUCTOR
|
372 |
|
|
|
373 |
|
|
# define CYGBLD_ATTRIB_NORET
|
374 |
|
|
// This intentionally gives an error only if we actually try to
|
375 |
|
|
// use it. #error would give an error if we simply can't.
|
376 |
|
|
// FIXME: Had to disarm the bomb - the CYGBLD_ATTRIB_WEAK macro is now
|
377 |
|
|
// (indirectly) used in host tools.
|
378 |
|
|
# define CYGBLD_ATTRIB_WEAK /* !!!-- Attribute weak not defined --!!! */
|
379 |
|
|
|
380 |
|
|
# define CYGBLD_ATTRIB_ALIAS(__x__) !!!-- Attribute alias not defined --!!!
|
381 |
|
|
|
382 |
|
|
# define CYGBLD_ATTRIB_ASM_ALIAS(__symbol__) !!!-- Asm alias not defined --!!!
|
383 |
|
|
|
384 |
|
|
# define CYGBLD_ATTRIB_CONST
|
385 |
|
|
|
386 |
|
|
# define CYGBLD_ATTRIB_ALIGN(__align__) !!!-- Alignment alias not defined --!!!
|
387 |
|
|
|
388 |
|
|
# define CYGBLD_ATTRIB_PRINTF_FORMAT(__format__, __args__)
|
389 |
|
|
|
390 |
|
|
#endif
|
391 |
|
|
|
392 |
|
|
// How to define weak aliases. Currently this is simply a mixture of the
|
393 |
|
|
// above
|
394 |
|
|
|
395 |
|
|
# define CYGBLD_ATTRIB_WEAK_ALIAS(__symbol__) \
|
396 |
|
|
CYGBLD_ATTRIB_WEAK CYGBLD_ATTRIB_ALIAS(__symbol__)
|
397 |
|
|
|
398 |
|
|
#ifdef __cplusplus
|
399 |
|
|
# define __THROW throw()
|
400 |
|
|
#else
|
401 |
|
|
# define __THROW
|
402 |
|
|
#endif
|
403 |
|
|
|
404 |
|
|
// -------------------------------------------------------------------------
|
405 |
|
|
// Variable annotations
|
406 |
|
|
// These annotations may be added to various static variables in the
|
407 |
|
|
// HAL and kernel to indicate which component they belong to. These
|
408 |
|
|
// are used by some targets to optimize memory placement of these
|
409 |
|
|
// variables.
|
410 |
|
|
|
411 |
|
|
#ifndef CYGBLD_ANNOTATE_VARIABLE_HAL
|
412 |
|
|
#define CYGBLD_ANNOTATE_VARIABLE_HAL
|
413 |
|
|
#endif
|
414 |
|
|
#ifndef CYGBLD_ANNOTATE_VARIABLE_SCHED
|
415 |
|
|
#define CYGBLD_ANNOTATE_VARIABLE_SCHED
|
416 |
|
|
#endif
|
417 |
|
|
#ifndef CYGBLD_ANNOTATE_VARIABLE_CLOCK
|
418 |
|
|
#define CYGBLD_ANNOTATE_VARIABLE_CLOCK
|
419 |
|
|
#endif
|
420 |
|
|
#ifndef CYGBLD_ANNOTATE_VARIABLE_INTR
|
421 |
|
|
#define CYGBLD_ANNOTATE_VARIABLE_INTR
|
422 |
|
|
#endif
|
423 |
|
|
|
424 |
|
|
// -------------------------------------------------------------------------
|
425 |
|
|
// Various "flavours" of memory regions that can be described by the
|
426 |
|
|
// Memory Layout Tool (MLT).
|
427 |
|
|
|
428 |
|
|
#define CYGMEM_REGION_ATTR_R 0x01 // Region can be read
|
429 |
|
|
#define CYGMEM_REGION_ATTR_W 0x02 // Region can be written
|
430 |
|
|
|
431 |
|
|
// -------------------------------------------------------------------------
|
432 |
|
|
#endif // CYGONCE_INFRA_CYG_TYPE_H multiple inclusion protection
|
433 |
|
|
// EOF cyg_type.h
|