Request - malloc/free wrappers to aid debugging

[Linda S. Saus]

>From article <gZhzPmi00WB8N9WoYF at andrew.cmu.edu>, by dg3s+ at andrew.cmu.edu (David Gentzel):
> I vaugely recall reading a message (or messages) on this list some time ago
> about a set of wrapper functions/macros for malloc/free to aid debugging.
> They (if my memory serves) kept track of malloced/freed memory and allowed
> you to detect such common snafus as multiple frees and memory leaks.
> 
On SUN systems, the following is available:  See man pages for free to
get complete details.

DIAGNOSTICS
     More detailed diagnostics can be made available to  programs
     using  malloc, calloc, realloc, valloc, memalign, cfree, and
     free, by including a special relocatable object file at link
     time  (see FILES). This file also provides routines for con-
     trol of error handling  and  diagnosis,  as  defined  below.
     Note:  these  routines  are  not  defined  in  the  standard
     library.
             
FILES
     /usr/lib/debug/malloc.o  diagnostic  versions  of   malloc()
                              routines.