🚀 go-pugleaf

In article <1993Mar8.233134.2872@dres.dnd.ca> krussell@dres.dnd.ca writes:
>In article <1993Mar8.191354.24920@csi.jpl.nasa.gov>,
>           mwette@csi.jpl.nasa.gov (Matt Wette) writes:
>|> I'm using
>|> 	gcc-2.3.3
>|> 	binutils-2.0/ld
>|> 	gas-1.38.1
>|> 
>|> It seems that the destructors for globals (i.e., non-automatic)
>|> objects are not getting called.  (The libg++/test-install fails!)
>
>I think I had the same problem with the destructors (on a
>sun4-sunos4.1.1) and I resolved it by not using "binutils-2.0/ld".
>However, it seems that "binutils-2.1/ld" fixes the problem.

The problem is this: the __do_global_dtors() function has the following
code to call destructors:

  unsigned nptrs = (unsigned) __DTOR_LIST__[0];
  unsigned i;

  /* Some systems place the number of pointers
     in the first word of the table.
     On other systems, that word is -1.
     In all cases, the table is null-terminated.  */

  /* If the length is not recorded, count up to the null.  */
  if (nptrs == -1)
    for (nptrs = 0; __DTOR_LIST__[nptrs + 1] != 0; nptrs++);

  /* GNU LD format.  */
  for (i = nptrs; i >= 1; i--)
    __DTOR_LIST__[i] ();

The problem is that the Gnu linker used to fill in the length of the list
of destructors correctly; nptrs was being set to zero in the above.  I'd
worked around the problem by commenting out the "if (nptrs == -1)" so that
the list would be counted.  I'm glad to hear that binutils-2.1 fixes the
problem.




--
Joe Buck	jbuck@ohm.berkeley.edu