[Valgrind-users] Is anyone successfully using VALGRIND_MALLOCLIKE_BLOCK?

[Jeremy F. <je...@go...>]

Hi all,

Is anyone using VALGRIND_MALLOCLIKE_BLOCK/FREELIKE_BLOCK?  If so, how?

It seems to me that these requests are basically useless, because
there's no way for Valgrind to tell when your malloc implementation is
manipulating its metadata, and when the client is trashing it.  If you
mark your memory regions returned by your malloc-like function, Valgrind
will complain when you touch memory near it with your free-like
function.

I think we need to add another pair of requests,
VALGRIND_ENTER_MALLOCLIKE_FUNCTION/LEAVE_MALLOCLIKE_FUNCTION, which
tells Valgrind not to complain about touching memory outside of blocks
which have been declared MALLOCLIKE.

	J