cplusinit.cpp

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/* cplusInit.C - initialize run-time support for C++  */

/* Copyright 1993 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
--------------------
02e,11oct98,ms   reworked 02d fix, since it was causing bootrom builds to fail
02d,08oct98,sn   moved defn of cplusXtorStrategy from cplusUsr.cpp to here
02c,17sep98,ms   removed force-links of loader support modules
02b,16jan98,sn   add force-link of 'new-style' new/delete
02a,15jan98,sn   add force-link of exception handling/RTTI
01f,20jun95,srh  remove force-link of iostreams.
01e,18jun95,srh  change cplusCfront to cplusCore.
01d,18jun93,jdi  more doc cleanup.
01c,03jun93,srh  doc cleanup
01b,23apr93,srh  implemented new force-link/initialization scheme
01a,23apr93,srh  written.
*/

/*
DESCRIPTION
This module defines cplusLibInit, and implements a scheme that forces
most of the WindC++ run-time support to be linked with VxWorks.
Initialization is actually performed by cplusLibMinInit(), which is
defined elsewhere.

NOMANUAL
*/

/* Includes */

#include "vxWorks.h"
#include "cplusLib.h"
#include "cplusEhInit.cpp"
#include "cplusNewInit.cpp"
/* Defines */

/* Globals */

/* 
 * This is used by the target loader if there is one: more
 * importantly the host tools become C++ enabled if and
 * only if this symbol is defined.
 */

/*
CPLUS_XTOR_STRATEGIES cplusXtorStrategy  = AUTOMATIC;
*/

/* Locals */

extern char __cplusCore_o;
extern char __cplusStr_o;
extern char __cplusXtors_o;
extern char __cplusUsr_o;

static char * cplusObjFiles [30] =
    {
    & __cplusCore_o,
    & __cplusStr_o,
    & __cplusXtors_o,
    & __cplusUsr_o,
    };

/* Forward declarations */


/*******************************************************************************
*
* cplusLibInit - initialize the C++ library (C++)
*
* This routine initializes the C++ library and forces all C++ run-time support
* to be linked with the bootable VxWorks image.  If INCLUDE_CPLUS is defined
* in configAll.h, cplusLibInit() is called automatically from the root task,
* usrRoot(), in usrConfig.c.
*
* RETURNS: OK or ERROR.
*/

extern void cplusTerminate ();
extern void (*set_terminate (void (*)())) ();

extern "C" STATUS cplusLibInit (void)
    {
/* We do this here to avoid pulling in exception handling code with
 * INCLUDE_CPLUS_MIN
 */
    set_terminate (cplusTerminate);
    return cplusLibMinInit ();
    }

/*******************************************************************************
*
* __cplusForce - Force linking of C++ library
*
* This routine defines an external function that should never be called.
* Its purpose is to forge a reference to the arrays
# cplusObjFiles, cplusEhObjs and cplusNewObjs  that
* even smart compilers like Green Hills' won't optimize away (GHS optimizes
* away the unreferenced static data).
*
* NOMANUAL
*
* RETURNS: Never called
*/

extern "C" void __pure_virtual_called (...);

extern "C" void
__cplusForce (void)
    {
    __pure_virtual_called (cplusObjFiles[0]);
    __pure_virtual_called (cplusEhObjs[0]);
    __pure_virtual_called (cplusNewObjs[0]);
    }