This is the mail archive of the ecos-discuss@sources.redhat.com mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: shared object of CDL.


>>>>> "Andrew" == Andrew Lunn <andrew.lunn@ascom.ch> writes:

    >> > Why is the question that springs to mind. 
    >> > 
    >> > Is there something going on with symbol tables? Has the
    >> > shared library version been stripped where as the static
    >> > version still has all the symbols?
    >> 
    >> No, I stripped both of them. The static version links all
    >> functions defined in libcdl.a, while the shared versios has
    >> only tables of libcdl.

    Andrew> You should look at the options you are passing to gcc and
    Andrew> the linker. It should be possible to get the linker to
    Andrew> throw away all the symbols that are not needed. I think
    Andrew> -ffunction-sections -fdata-sections is what you need.

Combining -ffunction-sections/-fdata-sections and any form of dynamic
loading is generally a bad idea, it is far too easy to accidentally
get rid of code or information that the loading program expects to be
present. Officially it is unsupported: from the ld documentation "This
option is not compatible with `-r', nor should it be used with dynamic
linking."

Bart

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]