be replaced if malloc() et al are replaced by a tool. This is because
different tools implement the function in different ways.
Add an appropriate malloc_usable_size() replacement to each of Memcheck,
Helgrind, DRD, Ptrcheck, Massif.
Update memcheck/tests/malloc_usable and add massif/tests/malloc_usable.
Merged from the DARWIN branch.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9193
that are memory offsets) with PtrdiffT; OffT should only be used for file
sizes and offsets.
Change Off64T from a ULong to a Long, as it should be. Replace some uses
of ULong in the address space manager with Off64T to match.
Also add a comment explaining the meanings of the basic types like Addr,
OffT, SizeT, etc.
Also fix the prototype for VG_(pread) -- the last arg is an OffT, not an
Int.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8959
