mallinfo in 64bit ?

[Toon Knapen <toon dot knapen at fft dot be>]

I found a thread where was stated that
(http://sources.redhat.com/ml/libc-alpha/2004-08/msg00007.html)

1) mallinfo stores the hblkhd (and others) in an int which is not 
correct for LP64 bit machines.
2) another function was suggested (malloc_arena_info) to interrogate 
glibc on the memory consumed by a process.

My question now is: what is the status of this all?

I currently would like to interogate on the memory-usage inside a 
process on an x86-64 and itanium machine but found no way to do this.

thanks in advance,

toon