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dsDebug.h

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/* 
 * $Id: dsDebug.h,v 1.6 2004/09/28 10:43:18 dsamersoff Exp $
 */

#ifndef dsDebug_h
#define dsDebug_h

#include <assert.h>

#include <iostream>
#include <iomanip>

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#ifndef DS_DEBUG_OUT
#  define DS_DEBUG_OUT cerr 
#endif

#ifdef DS_TRACE_DESTRUCTOR
#  define destructor  DS_DEBUG_OUT << "*DEBUG: " << __FILE__ << ':' << __LINE__ << " *DESTRUCTOR\n";
#else
#  define destructor 
#endif

#ifdef DS_DEBUG
#  define dmsg(s)     DS_DEBUG_OUT << "*DEBUG: " << __FILE__ << ':' << __LINE__ << " " << (s) << "\n";
#  define dout(s)     DS_DEBUG_OUT << "*DEBUG: " << __FILE__ << ':' << __LINE__ << " " << #s << ": '" << (s) << "'\n";
#  define doutx(s)    DS_DEBUG_OUT << "*DEBUG: " << __FILE__ << ':' << __LINE__ << " " << #s << ": '" << hex << (s) << "'\n";
#  define ds_gdb_wait { int _ds_gdb_wait = 1; while(_ds_gdb_wait); }
#else /* Placeholders */
#  define dmsg(s)     
#  define dout(s)     
#  define doutx(s)    
#  define ds_gdb_wait 
#endif /* DS_DEBUG */


#define MAX_DEPTH 40

#if ARCH == i386

inline void __dsBacktrace (std::ostream& os)
{
  /* We assume that all the code is generated with frame pointers set.  */

   unsigned long *sp, *bp, *ra;

    int max = MAX_DEPTH;

    __asm__ volatile ("mov %%ebp,%0" : "=g"(bp));
    __asm__ volatile ("mov %%esp,%0" : "=g"(sp));

  while (max--)
  {

    ra = (unsigned long *) bp[1];
    bp = (unsigned long *) bp[0];
    
    if (!sp || bp < sp)     
        break;

    os << std::dec << MAX_DEPTH-max << "# " << std::hex << (unsigned long) (ra-1) << std::endl;
   }
}

#endif

#if ARCH == sparc

inline void __dsBacktrace (std::ostream& os)
{
    unsigned long   *sp, *ra;
    int max = MAX_DEPTH;


    __asm__ volatile ("ta 3");
    __asm__ volatile ("mov %%sp,%0" : "=r"(sp));

    while (max--)
    {
        ra = (unsigned long *) sp[15];
        sp = (unsigned long *) sp[14];

        /* stop when we get the call to main */
        if (!ra)
                break;

        os << std::dec << MAX_DEPTH-max << "# " << std::hex << (unsigned long) (ra) << std::endl;
    }
}


#endif

#endif

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