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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
|
