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//==========================================================================

//

//      null.cxx

//

//      Null trace and assert functions

//

//==========================================================================

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

// -------------------------------------------                              

// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.

//

// eCos 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 or (at your option) any later      

// version.                                                                 

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            

//

// As a special exception, if other files instantiate templates or use      

// macros or inline functions from this file, or you compile this file      

// and link it with other works to produce a work based on this file,       

// this file does not by itself cause the resulting work to be covered by   

// the GNU General Public License. However the source code for this file    

// must still be made available in accordance with section (3) of the GNU   

// General Public License v2.                                               

//

// This exception does not invalidate any other reasons why a work based    

// on this file might be covered by the GNU General Public License.         

// -------------------------------------------                              

// ####ECOSGPLCOPYRIGHTEND####                                              

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   nickg

// Contributors:        nickg

// Date:        1997-09-15

// Purpose:     Trace and assert functions

// Description: The functions in this file are null implementations of the

//              standard trace and assert functions. These can be used to

//              eliminate all trace and assert messages without recompiling.

//

//####DESCRIPTIONEND####

//

//==========================================================================

#include <pkgconf/infra.h>

#ifndef CYGDBG_USE_ASSERTS

// then you get an empty function regardless, so that other code can link:

// (for example libc assert() calls this whether or not eCos code has

//  asserts enabled - of course if it does, assert() maps to the chosen

//  implementation; if not, it's the same inner function to breakpoint.)

#include <cyg/infra/cyg_type.h>        // base types

#include <cyg/infra/cyg_trac.h>        // tracing macros

#include <cyg/infra/cyg_ass.h>         // assertion macros

externC void

cyg_assert_fail( const char *psz_func, const char *psz_file,

                 cyg_uint32 linenum, const char *psz_msg ) __THROW

{

    for(;;);

};

#endif // not CYGDBG_USE_ASSERTS

#ifdef CYGDBG_INFRA_DEBUG_TRACE_ASSERT_NULL

#include <cyg/infra/cyg_type.h>        // base types

#include <cyg/infra/cyg_trac.h>        // tracing macros

#include <cyg/infra/cyg_ass.h>         // assertion macros

// -------------------------------------------------------------------------

// Trace functions:

#ifdef CYGDBG_USE_TRACING

externC void

cyg_tracenomsg( const char *psz_func, const char *psz_file, cyg_uint32 linenum )

{}

// provide every other one of these as a space/caller bloat compromise.

externC void

cyg_tracemsg( cyg_uint32 what,

              const char *psz_func, const char *psz_file, cyg_uint32 linenum,

              const char *psz_msg )

{}

externC void

cyg_tracemsg2( cyg_uint32 what,

               const char *psz_func, const char *psz_file, cyg_uint32 linenum,

               const char *psz_msg,

               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1 )

{}

externC void

cyg_tracemsg4( cyg_uint32 what,

               const char *psz_func, const char *psz_file, cyg_uint32 linenum,

               const char *psz_msg,

               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1,

               CYG_ADDRWORD arg2,  CYG_ADDRWORD arg3 )

{}

externC void

cyg_tracemsg6( cyg_uint32 what,

               const char *psz_func, const char *psz_file, cyg_uint32 linenum,

               const char *psz_msg,

               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1,

               CYG_ADDRWORD arg2,  CYG_ADDRWORD arg3,

               CYG_ADDRWORD arg4,  CYG_ADDRWORD arg5 )

{}

externC void

cyg_tracemsg8( cyg_uint32 what,

               const char *psz_func, const char *psz_file, cyg_uint32 linenum,

               const char *psz_msg,

               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1,

               CYG_ADDRWORD arg2,  CYG_ADDRWORD arg3,

               CYG_ADDRWORD arg4,  CYG_ADDRWORD arg5,

               CYG_ADDRWORD arg6,  CYG_ADDRWORD arg7 )

{}

// -------------------------------------------------------------------------

externC void

cyg_trace_dump(void)

{}

#endif // CYGDBG_USE_TRACING

// -------------------------------------------------------------------------

// Assert functions:

#ifdef CYGDBG_USE_ASSERTS

externC void

cyg_assert_fail( const char *psz_func, const char *psz_file,

                 cyg_uint32 linenum, const char *psz_msg ) __THROW

{

    for(;;);

};

extern "C"

{

extern unsigned long _stext;

extern unsigned long _etext;

unsigned long stext_addr = (unsigned long)&_stext;

unsigned long etext_addr = (unsigned long)&_etext;

};

externC cyg_bool cyg_check_data_ptr(const void *ptr)

{

    unsigned long p = (unsigned long)ptr;

    if( p == 0 ) return false;

    if( p > stext_addr && p < etext_addr ) return false;

    return true;

}

externC cyg_bool cyg_check_func_ptr(void (*ptr)(void))

{

    unsigned long p = (unsigned long)ptr;

    if( p == 0 ) return false;

    if( p < stext_addr && p > etext_addr ) return false;

    return true;

}

#endif // CYGDBG_USE_ASSERTS

#endif // CYGDBG_INFRA_DEBUG_TRACE_ASSERT_NULL

// -------------------------------------------------------------------------

// EOF null.cxx