From: Godot <garciamj@...>
Date: 2004-06-07T04:33:40+09:00
Subject: Segfault on embedded ruby.


Hi,
    This following problem is most likely due to my own
    misunderstandings, but I've not been able to resolve it after staring
    and scratching my head for quite a while.  Here it is:

---------------Start code---------------

#include <ruby.h>
#include <iostream>
#include <string>
using namespace std;

void dontCrash(string s) 
{
  VALUE test = rb_str_new2( s.c_str( ) );
  rb_gc_register_address(&test);
  rb_gc( ); // Test if gc gets corrupted
  rb_p( rb_str_new2(" stuff!!! ") );
  rb_p( test );
  rb_gc_unregister_address(&test);
}

int main ()
{
    ruby_init ();
    ruby_init_loadpath ();
    dontCrash("puts 'test'");
    ruby_finalize();
}

-------------- End code --------------------

The code (as reported by valgrind) always crashes on rb_gc( ).
Without the rb_gc( ), the code runs fine.  It also crashes when
rb_register_address isn't called.  This error has really got me
stumped, so any help is greatly appreciated.

Thanks,
-Godot