[Valgrind-users] Suppressions...

[<Joh...@al...>]

Is there any documentation on the usage of suppressions, ie: adding your 
own? The manual just skips over it, and the example docs in the provided 
suppression files are cryptic to say the least. Google turned up 
nothing. I got the old write(buf) one to work, but others seem to be 
just ignored.

Typical things which would be nice to know:

Memcheck vs Addrcheck:

Is Memcheck simply a leak check, and Addrcheck an address validation 
function? Can you suppression uninitialised variables with either of these?

What does supp_kind mean, ie: Param vs Free vs Cond

What is the qualification for these, ie: using of the optional pars?

are the fun: / obj: sequential, ie:

    fun:_dl_relocate_object*
    obj:*libc-2.2.?.so
    fun:_dl_catch_error*

Does that mean its _dl_relocate_object, which is called by anything in 
libc-2.2 and then called by _dl_catch_error.

Oh yeah, is the order from bottom to top, ie: is the last function 
first, rather than other way around (I know its the former, but its nice 
to get it stated in documentation...)

Whats core: mean?

{
    pthread_error/__pthread_mutex_destroy/_IO_default_finish
    core:PThread
    fun:pthread_error
    fun:__pthread_mutex_destroy
    fun:_IO_default_finish*
}

The qualifiers, sometimes we get Memcheck:Value4? Addr4? An explanation 
would be nice.

Any pointers to information such as this would be great.

Great project though.

    Thanks

      John