Valgrind is a system for debugging and profiling un*x
programs. With the tools that come with Valgrind, you can
automatically detect many memory management and threading bugs,
avoiding hours of frustrating bug-hunting, making your programs
more stable. You can also perform detailed profiling, to speed
up and reduce memory use of your programs.
This version is based on a more recent snapshot of
devel/valgrind and supports some older AMD processors.
Submitted by: Doug Rabson <dfr@FreeBSD.org> and Simon Barner