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- - HOWTO: C/C++ compiling on the unit itself. (https://talk.maemo.org/showthread.php?t=6737)

Re: HOWTO: C/C++ compiling on the unit itself.

can anyone supply a hint or fix for the binutils ld not finding shared libraries?

Code:

Nokia-N800-26:~# ldconfig -v | grep crypto

        libcrypto.so.0.9.7 -> libcrypto.so.0.9.7

Nokia-N800-26:~# ldconfig --print-cache | grep crypto

        libcrypto.so.0.9.7 (libc6) => /usr/lib/libcrypto.so.0.9.7

Nokia-N800-26:~# ld -lcrypto

ld: cannot find -lcrypto

Nokia-N800-26:~# ls /usr/lib/libcrypto*

/usr/lib/libcrypto.so.0.9.7

Nokia-N800-26:~# ls /usr/lib/libc.*

/usr/lib/libc.a   /usr/lib/libc.so

Nokia-N800-26:~# ld -lc

ld: BFD 2.16.91 20051213 assertion fail /home/ed/su18-2006se-armel-sandbox.gcc34qemu.distcc/work/binutils-2.16.91cs2005q3.2/bfd/elf32-arm.c:2320

ld: warning: cannot find entry symbol _start; defaulting to 00008100

Nokia-N800-26:~#

?

thanks,

rob.

edit:

the problem is with libs that do not end in .so :

Code:



Nokia-N800-26:~/code# ls /usr/lib/libcrypto*

/usr/lib/libcrypto.so.0.9.7

Nokia-N800-26:~/code# cd /usr/lib

Nokia-N800-26:/usr/lib# ld -lcrypto

ld: cannot find -lcrypto

Nokia-N800-26:/usr/lib# ln -s libcrypto.so.0.9.7 libcrypto.so

Nokia-N800-26:/usr/lib# ld -lcrypto

ld: BFD 2.16.91 20051213 assertion fail /home/ed/su18-2006se-armel-sandbox.gcc34qemu.distcc/work/binutils-2.16.91cs2005q3.2/bfd/elf32-arm.c:2320

ld: warning: cannot find entry symbol _start; defaulting to 00008248

Nokia-N800-26:/usr/lib#

rob.

Re: HOWTO: C/C++ compiling on the unit itself.

I had some errors when i was trying to install g++. A file was missed in the wget step and another one that was downloaded wasn't installed.
Here is the modified script that worked for me.

Code:

wget http://repository.maemo.org/pool/maemo2.2/free/g/gcc-3.4/libstdc++6_3.4.4cs2005q3.2-5.osso3_armel.deb http://repository.maemo.org/pool/maemo2.2/free/g/gcc-3.4/gcc-3.4_3.4.4cs2005q3.2-5.osso3_armel.deb http://repository.maemo.org/pool/maemo2.2/free/g/gcc-3.4/libstdc++6-dev_3.4.4cs2005q3.2-5.osso3_armel.deb  http://repository.maemo.org/pool/maemo2.2/free/g/gcc-3.4/g++-3.4_3.4.4cs2005q3.2-5.osso3_armel.deb  http://repository.maemo.org/pool/maemo3.1/free/binary/libc6_2.3.5cs2005q3.2-5.osso12_armel.deb  http://repository.maemo.org/pool/maemo3.2/free/binary/libc6-dev_2.3.5cs2005q3.2-5.osso12_armel.debhttp://repository.maemo.org/pool/maemo3.1/free/binary/linux-kernel-headers_2.6.16.osso7_armel.deb  http://repository.maemo.org/pool/maemo2.2/free/b/binutils/binutils_2.16.91cs2005q3.2-5.osso1_armel.debhttp://repository.maemo.org/pool/maemo2.2/free/g/gcc-3.4/cpp-3.4_3.4.4cs2



dpkg -i binutils_2.16.91cs2005q3.2-5.osso1_armel.deb

dpkg -i linux-kernel-headers_2.6.16.osso7_armel.deb 

dpkg -i libc6_2.3.5cs2005q3.2-5.osso12_armel.deb

dpkg -i libc6-dev_2.3.5cs2005q3.2-5.osso12_armel.deb

dpkg -i cpp-3.4_3.4.4cs2005q3.2-5.osso3_armel.deb

dpkg -i gcc-3.4_3.4.4cs2005q3.2-5.osso3_armel.deb



dpkg -i libstdc\+\+6-dev_3.4.4cs2005q3.2-5.osso3_armel.deb

dpkg -i g\+\+-3.4_3.4.4cs2005q3.2-5.osso3_armel.deb



apt-get -f install

I hope i haven't missed anything.

Re: HOWTO: C/C++ compiling on the unit itself.

Thanks rob and i.rachita for the update/fix!

Anyway rob, does that mean that libraries that end in .so will work now? Is it only libcrypto that is affected or are there other libraries that don't end in .so too?

Re: HOWTO: C/C++ compiling on the unit itself.

Hi,

This looks brilliant, and i'll try it out soon. Should i consider converting/creating a new partition (efs and jffs2 are mentioned) on my internal memory card for this?

Re: HOWTO: C/C++ compiling on the unit itself.

Quote:

Originally Posted by gotanga (Post 66226)

Hi,

This looks brilliant, and i'll try it out soon. Should i consider converting/creating a new partition (efs and jffs2 are mentioned) on my internal memory card for this?

That's really up to you, it takes up 50mb on my uncompressed filesystem. On a jffs2 partition, it should take up a lot lesser.

Re: HOWTO: C/C++ compiling on the unit itself.

Great post, thanks for the info!

Much appreciated.

Re: HOWTO: C/C++ compiling on the unit itself.

Agreed. Just followed a modified version to get gcc working on an N800 in OS2008 and it works a treat. Portable c++ development here I come.

Re: HOWTO: C/C++ compiling on the unit itself.

Hi,

Then, it's possible to compile a c or c++ app source like in any other linux dist?

I'm thinking that if we have the make utilitie and c/c++ libs, it's possible to make ./configure make make install/or buid package with dpkg utilitie, is it true?

sorry if this is an stupid question, i'm new with the IT, and escuse my poor english.

Re: HOWTO: C/C++ compiling on the unit itself.

I would love to see a complete replacement for Scratchbox that runs on the tablet. Plus Glade.

This is way beyond my capabilities to create but I would cheer heartily from the sidelines.;)

Re: HOWTO: C/C++ compiling on the unit itself.

This is so cool. As I read a PDF about C++ using the Evince Document reader, I can try out the examples using SciTE.

http://fkwjcw.bay.livefilestore.com/...Q/sciteIDE.png