On Thu, Jul 24, 2014 at 11:58:51AM -0400, Bill Meier wrote:
> While reviewing the new ceph dissector [1], two issues cropped up
> where my build on Linux (using Autofoo) apparently gave different
> results then a build by Kevin Cox (the submitter of the new
> dissector) using CMake on Linux.
>
> He used GCC 4.9.1 and CMake while I used GCC 4.9.0 and Autofoo.
>
> 1. The Autofoo compile indicated an
> "unused but set" variable
> The CMake apparently did not.
Should not be: I do (or at least did) get these messages regularly with
CMake.
> Different CFlags ?
As the order of flags in both files is rather random I did a bit of grepping,
sorting and some manual editing. It looks like the flags should be the same.
> 2. The ceph dissector had several value_string_ext structs
> defined as 'static const ...'.
>
> The Wireshark built with CMake worked AOK when
> the ceph dissector used the extended value
> strings for the first time (i.e., no exceptions).
>
> The Wireshark built with Autofoo trapped
> when the extended value string structs were used
> for the first time (when there was an attempt to
> write to the struct).
>
> IOW: In one case, the structs were apparently not in a r/o section
> while in the other they apparently were.
>
> I've no idea if this difference has anything to
> do with CMake vs Autofoo.
>
>
> Thoughts ?
Not on first sight. Maybe you can do a comparison on your system where
all the other tools are identical?
Ciao
Jörg
--
Joerg Mayer <jmayer@xxxxxxxxx>
We are stuck with technology when what we really want is just stuff that
works. Some say that should read Microsoft instead of technology.
