[R] Shared libraries for use with R

[Prof Brian Ripley]

On Fri, 18 Jan 2002, Giovanni Petris wrote:

>
> Thank you for the answer! There is something that is still not clear
> to me though...
>
> Thank you,
> Giovanni
>
> >
> > Solaris, I presume from the flags, but *please* tell us enough background
> > information.
> >
> Ooops! Yes, Solaris...
>
> >
> > Try nm -pg tryit.so and ldd tryit.so.  The linker will use a shared
> > version of libutil if one exists, and then you would need a -R flag.
> >
> There is only a static version libutil.a. Do I need to create a shared
> version of it? (see below the output form nm and ldd)

No, but having one makes for more potential problems.

> > I am also not sure why you have quotes around parts of the cc lines: I
> > think you have been quoting in Makevars when you should not be.
> >
> Correct...
>
> >
> > --
> > Brian D. Ripley,                  ripley at stats.ox.ac.uk
> > Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> > University of Oxford,             Tel:  +44 1865 272861 (self)
> > 1 South Parks Road,                     +44 1865 272860 (secr)
> > Oxford OX1 3TG, UK                Fax:  +44 1865 272595
> >
> >
>
> Fri<15:07>gpetris[291]>nm -pg tryit.so
>
>
> tryit.so:
> 0000000000 U __1cG__CrunVdo_exit_code_in_range6Fpv1_v_
> 0000000000 U __1cH__CimplKcplus_fini6F_v_
> 0000000000 U __1cH__CimplKcplus_init6F_v_
> 0000068252 D _DYNAMIC
> 0000068474 D _edata
> 0000068488 B _end
> 0000002587 D _etext
> 0000000000 U _ex_deregister
> 0000000000 U _ex_register
> 0000002436 T _fini
> 0000068124 D _GLOBAL_OFFSET_TABLE_
> 0000002356 T _init
> 0000002568 D _lib_version
> 0000068152 D _PROCEDURE_LINKAGE_TABLE_
> 0000001992 T create
> 0000000000 U dgemm
> 0000000000 U dmatrix
> 0000000000 U fprint
> 0000002120 T MatMult
> 0000000000 U messdoublematrix2

So dmatrix was not linked in.  What's fprint (not fprintf) by the way?

> Fri<15:07>gpetris[292]>ldd tryit.so

So it has no dynamic dependencies.


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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