• Paul Clinch (19/26) Jan 23 2005 When running out of memory, I got:-

Paul Clinch <pclinch internet-glue.co.uk> writes:

When running out of memory, I got:-
 
Program received signal SIGSEGV, Segmentation fault.

This was generated on a linux box, using dmd 0.111 and the prebuilt
libphobos.a and glibc 2.3.3. I wrote a simple prog. to create a array of
objects and limited the memory it was permitted with "ulimit -v 8000".

I traced what appears to be a bug in file gc.d, function _d_newclass. The
function didn't check the result of _gc.malloc. I changed the source as
follows:-

86,87c86,92
<       debug(PRINTF) printf(" p = %p\n", p);
<       _gc.setFinalizer(p, &new_finalizer);
---
         if (!p)
             _d_OutOfMemory();
         else
         {
             debug(PRINTF) printf(" p = %p\n", p);
             _gc.setFinalizer(p, &new_finalizer);
         }

Now an exception is thrown and can be caught. (Then memory released).

I then checked back to the dmd 0.110 source to find the correct code
commented out! 

My libphobos.a file turns out to be quite a bit bigger than the one shipped,
843522 instead of 839742. I used the shipped linux.mak and gcc 3.3.4.

Regards, Paul Clinch.