[Pharo-users] [squeak-dev] Using libraries in FFI
Annick Fron
list at afceurope.com
Fri Oct 24 08:41:47 UTC 2014
Thank you !
I will try that.
Annick
Le 23 oct. 2014 à 17:49, Eliot Miranda <eliot.miranda at gmail.com> a écrit :
>
>
> On Thu, Oct 23, 2014 at 8:46 AM, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> Hi Annick,
>
> On Wed, Oct 22, 2014 at 5:45 AM, Annick Fron <list at afceurope.com> wrote:
> Hi Eliot,
>
> My problem is not with the VM, my problem is with my own library that I connect to through FFI.
> I know where the libraries are !
>
> I have tried to add them in /etc/ld.so.conf.d , that does not work.
> I have tried export LD_LIBRARY_PATH, but somehow it erases some libraries needed by pharo.
>
> But if you use the script I include with my VMs it won't erase. It extends LD_LIBRARY_PATH. Find an example attached.
>
> Here's the operative line (the last one). PLUGINS is the directory containing VM plugins, SVMLLP is "Smalltalk VM LD_LIBRARY_PATH" and specifies the directories containing the C libraries the VM depends on (C library, libuuid, etc).
>
> LD_LIBRARY_PATH=$PLUGINS:$SVMLLP:${LD_LIBRARY_PATH} exec "$BIN/squeak" "$@"
>
>
>
> I have done sudo ldconfig ...
>
> In fact I have one library that depends from another one.
> In FFI I call one method which calls another method in the other library.
> I have tried to create symbolics links in the directory …
> I have checked that nm gives the right symbol with the right type ..
>
> So I have no idea what to try now !
>
> Annick
>
> Le 22 oct. 2014 à 12:46, Eliot Miranda <eliot.miranda at gmail.com> a écrit :
>
> > Hi Annick,
> >
> > LD_LIBRARY_PATH should be set to point to the relevant directories, but this can be tricky as there is a lot if variation across Linux distros as to where libraries are kept. The squeak script that comes with the Cog VMs extends LD_LIBRARY_PATH, so if you know where your libraries are you can use the script to find the other libraries the VM needs (c library and plugins).
> >
> > Eliot (phone)
> >
> > On Oct 22, 2014, at 2:55 AM, Annick Fron <list at afceurope.com> wrote:
> >
> >> Hi,
> >>
> >> I am using a module in FFI which depends on a large library let’s say 10 dynamic .so files in a directory.
> >> How is it possible to use this library without making all symbolic links ?
> >>
> >> Annick
> >
>
>
>
>
>
> --
> best,
> Eliot
>
>
>
> --
> best,
> Eliot
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