abort.cxx

ecos实时嵌入式操作系统

//===========================================================================
//
//      abort.cxx
//
//      Implementation of the abort() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
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// or inline functions from this file, or you compile this file and link it
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// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     jlarmour
// Contributors:  
// Date:          2000-04-28
// Purpose:       Implement the ISO C abort() function from 7.10.4.1
// Description:   This implements abort() simply by raising SIGABRT as
//                required by ISO C
// Usage:       
//
//####DESCRIPTIONEND####
//
//===========================================================================

// CONFIGURATION

#include <pkgconf/libc_startup.h>   // Configuration header
#include <pkgconf/isoinfra.h>       // CYGINT_ISO_SIGNAL_IMPL

// INCLUDES

#include <cyg/infra/cyg_type.h> // Common type definitions and support
#include <cyg/infra/cyg_trac.h> // Tracing support

#include <stdlib.h>             // Header for all stdlib functions
                                // (like this one)
#if CYGINT_ISO_SIGNAL_IMPL > 0
# include <signal.h>
#endif

// FUNCTIONS

externC void
abort( void )
{
    CYG_REPORT_FUNCNAME( "abort" );
    
#if CYGINT_ISO_SIGNAL_IMPL > 0
    int rc;
    
    rc = raise(SIGABRT);
    
    CYG_TRACE1(1, "raise(SIGABRT) returned!!! rc=%d", rc);

    CYG_FAIL("raise(SIGABRT) returned");

#endif

    // ISO C clearly says that abort() cannot return to its caller

    // loop forever
    for (;;)
        CYG_EMPTY_STATEMENT;

    CYG_REPORT_RETURN();
} // abort()

// EOF abort.cxx